There is disclosed an RF circuit component for incorporation into a composite article. The component comprises a dielectric substrate and a composite fibre veil which is treated with a conductive material. The composite fibre veil encloses a part of the dielectric substrate so as to delimit a wave propagation region in said part of the dielectric substrate.
A method of forming a precursor substance for forming an electrode of an electrochemical cell. The method comprises providing particles of an electrode-forming material and coating the particles with an inert material to form coated particles. The inert material is inert with respect to the electrode-forming material. The coated particles are mixed with a liquid or gel carrier medium to form the precursor substance. Useful new electrochemical products are provided.
There is disclosed a thermal infrared reflective coating formulation for use as camouflage. The formulation comprises a thermal infrared reflective flake and a thermal infrared transparent material. The thermal infrared transparent material comprises a polyolefin binder material.
Method of printing and articles A method of printing a separator for an electrochemical cell and articles made therefrom. A method of printing a separator for an electrochemical cell and a method of printing an electrochemical cell comprises providing an ink having particles of a separator-forming substance suspended within it and printing a layer of the ink onto a surface. The separator is formed from the separator-forming substance in the layer of ink. This may be done by drying or curing the layer of ink. The separa-tor-forming particles may host an electrolyte before or after the separator is formed.
A respirator system for delivering filtered atmospheric air to a user for inhalation, the respirator system comprising: a respirator through which a user can inhale filtered air; first and second air filter systems, each air filter system being configured to filter and draw air from the atmosphere into the respirator system and to deliver filtered drawn air to the respirator via an airflow path; first and second conduits for directing filtered air from the respective first and second air filter systems to the respirator; and a support for supporting the respirator system on the user's head, wherein the respirator is arranged at a front of the support to engage the front of a user's head when in use, and the first and second air filter systems are arranged at the rear of the support to sit at the rear of a user's head when in use, wherein the support comprises an adjusting means for adjusting a spacing between the two air filter systems to secure the support to the user's head.
A capacitive-resistive imaging system for imaging an environment comprises a plurality of conductive electrodes supported on a substrate, and have a side directed away from the substrate, wherein the conductive electrodes are, in use, galvanically isolated from the environment to be imaged, and capacitively couple thereto, and have a dielectric coating on at least the side directed away from the substrate. The dielectric coating advantageously is higher than 6, and more advantageously is much greater than 6. This encourages an electric field induced into the environment from the electrodes to penetrate further into the environment, and reduces coupling to the substrate. The invention has application in down-hole imaging, monitoring of constructions, foundations, and elsewhere.
G01V 3/26 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device
E21B 49/00 - Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
A method for cross-linking an oligosilazane without use of inert gas control comprising the steps of: mixing the oligosilazane with a solvent; adding a soluble catalyst at a suitable rate to ensure consistent evolution of a gaseous by-product across the surface of the oligosilazane solution; wherein said inert gas control comprises measures to replace the atmosphere above the solution with water and/or oxygen depleted gas, including reactions performed within a glove box, using a Schlenk line, or with other purposeful addition of cloaking gases such as nitrogen, argon or dehumidified air. Also provided are polymers prepared by the method, preferably with a low oxygen content, composites prepared from the polymers and uses in aerospace, automotive, oil and gas industries.
There is provided a composition for joining and/or treating ceramic materials. The composition comprises approximately 15 wt% to approximately 90 wt% ceramic nanoparticles, approximately 0.1 wt% to approximately 8 wt% dispersant, and approximately 2 wt% to approximately 84.9 wt% solvent. There is also provided a method of joining a first ceramic part and a second ceramic part at a joining interface to form a joined ceramic component, and a method of treating a ceramic component at a treatment surface to form a treated ceramic component. There is further provided a joined ceramic component.
A non-systematic convolutional decoder of a convolutionally encoded multi-level data stream includes a shift register and two or more paths of exclusive-OR (XOR) gates, arranged to reconstruct an original input information stream, each path having a quantiser arranged to quantise the signal to two levels, and a set of XOR gates arranged to match an encoding path in an associated convolutional encoder, and a selector arranged to feed an output from each path to a single input of the shift register. If the paths have differing values at their output, the selector may choose the value from the path based upon a function of the multi-level signals associated with each path, such as the path with the largest absolute signal level. The decoder provides a simple means for decoding signals while allowing the signal to also or instead be decoded using e.g. a Viterbi decoder if higher performance is required.
G01S 19/24 - Acquisition or tracking of signals transmitted by the system
G01S 19/30 - Acquisition or tracking of signals transmitted by the system code related
G01S 19/37 - Hardware or software details of the signal processing chain
H03M 13/23 - Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using convolutional codes, e.g. unit memory codes
H03M 13/00 - Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
A method of making nanosheets, the method comprising: providing a mixture comprising a bulk material and a solvent mixture, the solvent mixture comprising: a transition metal nitrate; an acid; a non-polar solvent; and a dispersant; and the method further comprising treating the mixture with an ultrasound treatment to exfoliate nanosheets from the bulk material.
Gearboxes for a skid steered vehicle including layouts in which all electric propulsion drive motors and electric steering motors are located on one side of the gearbox, and layouts in which the drive inputs of the electric propulsion drive motors are located face to face. Gear change units and gear packaging configurations suitable for such gearboxes.
B62D 11/16 - Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin- differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source the additional power supply being supplied mechanically
B62D 11/04 - Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of separate power sources
B60K 17/12 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of electric gearing
B60K 17/16 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
F16H 48/10 - Differential gearings with gears having orbital motion with orbital spur gears
A drive unit for a skid steered vehicle includes a controlled differential positioned between two shafts. The end of each shaft forms an output of the drive unit connected directly to the differential outputs via the shafts. A steer motor is in driveable communication with the differential, and an electric propulsion motor is in driveable communication with the shaft outputs. A gear reduction unit, and optional gear change unit, is positioned between the differential and the electric propulsion motor. The electric propulsion motor, the gear reduction unit and optional gear change unit are connected in a parallel connection with an output of the differential to the shaft outputs. The optional gear change unit includes an epicyclic gear reduction unit having an input and an output which provides drive input from the gear change unit to the shaft. A gear change set has a master gear that receives drive output from the electric propulsion motor, and slave gears which are driven by the master gear via one or more gear chains. A dog clutch slideably engages the input of the gear reduction unit and selectively engages with the master gear or slave gears so that the selected position of the dog clutch determines which gear is engaged.
B62D 11/16 - Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin- differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source the additional power supply being supplied mechanically
B62D 11/04 - Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of separate power sources
B60K 17/12 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of electric gearing
B60K 17/16 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
F16H 48/10 - Differential gearings with gears having orbital motion with orbital spur gears
An early warning detection system for detecting battery thermal runaway in a battery pack or module, said system comprising a coating applied to the outside of one or more battery pack cells, said coating selected such that it decomposes at a temperature range useful for said detection and so as to emit a detectable volatile compound. Also provided is a method for preparing battery cells for use in a detection system, systems and batteries prepared according to the invention and their use in the detection of battery thermal runaway.
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
H01M 50/124 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material having a layered structure
H01M 50/131 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by physical properties, e.g. gas-permeability or size
H01M 50/572 - Means for preventing undesired use or discharge
A system for imaging material, typically in an underground scenario, comprising of a plurality of conductive electrodes supported on a conductive substrate positionable in an environment to be imaged, a signal generator connected to at least two of the electrodes, and a signal detector connected to at least two of the electrodes, and wherein an impedance compensator is arranged between each electrode and its substrate to counter parasitic impedance between the two. Typically the impedance compensator may be arranged to act as a negative capacitance, which may be approximately equal to any capacitance between the electrode and the substrate. An electrode may be a drive electrode coupled to a signal generator, or a detector electrode coupled to a detector, or may be reconfigurable to act as either one.
G01N 27/22 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
G01V 3/24 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging operating with propagation of electric current using ac
G01V 3/22 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging operating with propagation of electric current using dc
15.
A METHOD OF PRINTING A COMPONENT IN AN ELECTROCHEMICAL CELL
An ink for printing an active layer in an electrochemical cell using a high-speed printing process, the ink comprising: a solvent; and an active-layer-forming material for forming an active layer; wherein the active-layer-forming material comprises: an active material in suspension in the solvent; and a polymeric binder. Also provided are electrodes made using the ink, electrolytic cells comprising electrodes and articles comprising the electrolytic cells.
A method of printing an electrolyte for an electrochemical cell, the method comprising: providing an ink, the ink comprising a solvent and an electrolyte-forming material, the electrolyte-forming material comprising an electrolyte species and a polymer; printing the ink onto a medium to form an ink layer on the medium; allowing the ink to dry or cure to cause the electrolyte forming material to form an electrolyte layer on the medium. Also provided are electrodes made using the method, electrolytic cells comprising the electrodes and articles comprising the electrolytic cells.
H01M 10/0565 - Polymeric materials, e.g. gel-type or solid-type
H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
17.
Highly Dieelectric Metal Oxide Filled Polymers for Radio Frequency Products
B32B 27/20 - Layered products essentially comprising synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
B32B 27/06 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance
B32B 27/20 - Layered products essentially comprising synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
B32B 27/06 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance
There is disclosed a spray gun for spray deposition of 2D material onto substrate surfaces so as to allow for subsequent laser patterning or etching of said material into a metamaterial. The gun comprises: a housing 1 capable of accepting a propulsion device for propulsion of the material, wherein said housing 1 accommodates a reservoir for loading material to be deposited by spraying; and a nozzle 4 for directing the material to be sprayed by the gun. The nozzle 4 includes converging and diverging inner bore sections so as to enable propulsion of material at a supersonic speed.
B05B 7/14 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
B05B 1/24 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means incorporating means for heating the liquid or other fluent material, e.g. electrically
41 - Education, entertainment, sporting and cultural services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Training of military and security personnel; testing, analysis and evaluation of training and education approaches and/or methodologies for military and security personnel, to determine professional competency of military and security personnel and compliance with established accreditation standards; military and security training services; military operational training services; training services relating to the operation of military equipment, vehicles, ships, aircraft and associated systems; flight instruction; educational and vocational testing services for military and security personnel; conducting tests and trials for military and security personnel; testing and evaluating the competence of military and security personnel; testing and evaluating the competence of military and security personnel in relation to munitions and ordinance disposal; conducting educational trials and tests in relation to munitions and ordinance disposal; testing and evaluating the competence of military and security personnel in relation to weapons handling and weapons testing; conducting educational trials and tests in relation to weapons handling and weapons testing Provision of testing facilities for ammunition and firearms; environmental testing; firearms and ammunitions testing; maritime testing
Method of making a shaped article (5) comprising at least two parts (10, 15) wherein the first part comprises at least one projection (20) and the second part comprises at least one recess (22) by preparing said first part and said second part in a moulding process and joining the prepared first and second part together by engaging the at least one projection with the at least one recess to form said shaped article.
Filled polymer compositions and methods of making said filled polymer compositions and shaped articles or products comprising or formed from said polymer compositions.
B29C 44/00 - Shaping by internal pressure generated in the material, e.g. swelling or foaming
B29C 44/34 - Component parts, details or accessories; Auxiliary operations
B29C 44/42 - Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
Filled polymer compositions and methods of making said filled polymer compositions and shaped articles or products comprising or formed from said polymer compositions.
Some embodiments are directed to an electric hub drive with a braking assembly. The hub drive includes a housing; a rotary drive transmission system mounted within the housing; and a braking assembly positioned within the housing. The braking assembly includes a braking formation that is coupled to be rotationally driven by the rotary drive transmission system. Advantageously or preferably, the braking formation is coupled to be rotationally driven by a part of the rotary drive transmission system that has a higher angular velocity than the output shaft. This enables the braking formation to rotate at a faster speed than the wheel hub.
B29C 44/00 - Shaping by internal pressure generated in the material, e.g. swelling or foaming
B29C 44/34 - Component parts, details or accessories; Auxiliary operations
B29C 44/42 - Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
Lightweight armor includes an inner liner with releasable fasteners on its outside surface for attachment to an aircraft interior releasable fastener layer and with an inside surface including releasable fasteners. A plurality of tiles of pressed polymer fibers in a resin matrix are secured to the inner liner inside surface with releasable fasteners. A cover is secured to the tiles with releasable fasteners.
A method of forming a shaped article wherein said article comprises at least two parts which are chemically bonded, the method comprising: assembling at least two non chemically bonded parts in a weld cavity of a tool to form an assembly of the at least two parts, wherein said weld cavity is adapted to receive the assembly of at least two parts in the form of the shaped article; sealing the weld cavity of the tool; melting the assembly of at least two parts to chemically bond the at least two parts together to form the shaped article, wherein the shape of the weld cavity is matched to the outer circumference of the assembly of parts such that thermal expansion forces the polymer parts against the weld cavity surface and the pressure leads to full surface bonds between all parts, and wherein the tool forming the weld cavity comprises two halves forming a piston which fits into the bore of a bolster component and the plane of the split line between the two piston halves is parallel to the axis of the bore such that the pressure from the thermal expansion of the assembly of parts within the weld cavity is opposed by the surface of the bore preventing the weld cavity split line from opening and therefore preventing leakage of polymer from within the pressurised weld cavity volume, and wherein the two piston components are made from a dissimilar metal with higher coefficient of thermal expansion than the bolster component ensuring that at the welding temperature the piston is larger in diameter than the bore diameter of the bolster component leading to an interference fit which makes forces the weld cavity split line to close at the weld temperature but which still allows for a clearance gap between piston and bore at room temperature for the tool to be assembled and disassembled.
B29C 44/42 - Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
31.
METHOD AND APPARATUS FOR IMAGING A BIOLOGICAL SAMPLE BY TOTAL INTERNAL REFLECTION OF LIGHT IN THE GHz RANGE
Some embodiments are directed to a range of method for investigating a sample such as obtaining images and/or spectral information are described. The method includes a method for deriving structural information about a sample as a continuous function of the depth below the surface of the sample, a method for evaluating a part of the structure of a sample located between two interfaces within the sample, and a contrast enhancing method and apparatus which has a quick image acquisition time.
G01N 21/3581 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using Terahertz radiation
A drive module for rotating a first robot arm member relative to a second robot arm member comprising a motor, a gear head driven by the motor, a pinion driven by the gear head and a slip clutch including an input section with integral gear teeth driven by the pinon, and an output section configured to be coupled to the second robot arm member. A housing is disposed at least about the pinion and slip clutch and configured to be coupled to the first robot arm member.
An underwater vehicle module connector includes a first mating ring connected to a first module and including a first bulkhead sealing the first module, a first electrical connector extending outward from the first bulkhead, and a first coupling mechanism. A second mating ring is connectable to a second module and includes a second bulkhead sealing the second module, a second electrical connector extending outward from the second bulkhead, and a second coupling mechanism. The first and second couplers are configured to releasably couple the first mating ring to the second mating ring and mate the first electrical connector with the second electrical connector.
A method of forming a precursor substance for forming an electrode of an electrochemical cell. The method comprises providing particles of an electrode-forming material and coating the particles with an inert material to form coated particles. The inert material is inert with respect to the electrode-forming material. The coated particles are mixed with a liquid or gel carrier medium to form the precursor substance. Useful new electrochemical products are provided.
Method of printing and articles A method of printing a separator for an electrochemical cell and articles made therefrom. A method of printing a separator for an electrochemical cell and a method of printing an electrochemical cell comprises providing an ink having particles of a separator-forming substance suspended within it and printing a layer of the ink onto a surface. The separator is formed from the separator-forming substance in the layer of ink. This may be done by drying or curing the layer of ink. The separator-forming particles may host an electrolyte before or after the separator is formed.
H01M 10/0583 - Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with ‘’Z’’-shaped electrodes or separators
H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Electrical and electronic power supplies for electric drive transmissions, powertrains, drivetrains and propulsion mechanisms for tracked and skid-steered military land vehicles; control apparatus and instruments for electric drive transmissions, powertrains, drivetrains and propulsion mechanisms for tracked and skid-steered military land vehicles, namely, transmission power and speed controllers, microcomputers, signal processors, power converters, temperature sensors, position sensors, current sensors, speed sensors, pressure sensors, flow rate sensors, electrical encoders, electrical resolvers, electrical actuators, electrical conductors and fibre-optic cables; software for use in controlling the operation of electric drive transmissions, powertrains, drivetrains and propulsion mechanisms for tracked and skid-steered military land vehicles Powertrains and drivetrains for land vehicles; hybrid-electric powertrains and drivetrains for land vehicles; propulsion mechanisms for land vehicles; electric drive transmissions for tracked and skid-steered military land vehicles; motors, differentials, gear change and gear reduction mechanisms, brakes, coupling shafts and final drives for the aforesaid military land vehicle transmissions; parts and fittings for all the aforesaid goods Installation, maintenance and repair services in relation to powertrains, drivetrains, propulsion mechanisms and electric drive transmissions for tracked and skid-steered military land vehicles Design, development and technical support services for others, namely, analysis, simulation and practical testing in relation to powertrains, drivetrains, propulsion mechanisms and electric drive transmissions for tracked and skid-steered military land vehicles
41 - Education, entertainment, sporting and cultural services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Training of military and security personnel; accreditation of the professional competency of military and security personnel; military and security training services; military operational training services; training services relating to the operation of military equipment, vehicles, ships, aircraft and associated systems; flight instruction; educational and vocational testing services for military and security personnel; conducting tests and trials for military and security personnel to evidence operational capability and effectiveness; testing and evaluating the competence of military and security personnel to evidence operational capability and effectiveness; testing and evaluating the competence of military and security personnel in relation to munitions and ordinance disposal to evidence operational capability and effectiveness; conducting educational trials and tests in relation to munitions and ordinance disposal; testing and evaluating the competence of military and security personnel in relation to weapons handling and weapons testing; conducting educational trials and tests in relation to weapons handling and weapons testing. Provision of testing facilities for ammunition and firearms; environmental testing; firearms and ammunitions testing; maritime testing, namely, testing the operational capability and effectiveness of maritime platforms and military and security maritime vehicles and facilities.
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Electrical and electronic power supplies for electric drive transmissions, powertrains, drivetrains and propulsion mechanisms for tracked and skid-steered military land vehicles; control apparatus and instruments for electric drive transmissions, powertrains, drivetrains and propulsion mechanisms for tracked and skid-steered military land vehicles, namely, transmission power and speed controllers, microcomputers, signal processors, power converters, temperature sensors, position sensors, current sensors, speed sensors, pressure sensors, flow rate sensors, electrical encoders, electrical resolvers, electrical actuators, electrical conductors and fibre-optic cables; software for use in controlling the operation of electric drive transmissions, powertrains, drivetrains and propulsion mechanisms for tracked and skid-steered military land vehicles. Powertrains and drivetrains for land vehicles; hybrid-electric powertrains and drivetrains for land vehicles; propulsion mechanisms for land vehicles; electric drive transmissions for tracked and skid-steered military land vehicles; motors, differentials, gear change and gear reduction mechanisms, brakes, coupling shafts and final drives for the aforesaid military land vehicle transmissions; parts and fittings for all the aforesaid goods. Installation, maintenance and repair services in relation to powertrains, drivetrains, propulsion mechanisms and electric drive transmissions for tracked and skid-steered military land vehicles. Design, development and technical support services for others, namely, analysis, simulation and practical testing in relation to powertrains, drivetrains, propulsion mechanisms and electric drive transmissions for tracked and skid-steered military land vehicles.
A respirator system for delivering filtered atmospheric air to a user for inhalation, the respirator system comprising: a respirator through which a user can inhale filtered air; first and second air filter systems, each air filter system being configured to filter and draw air from the atmosphere into the respirator system and to deliver filtered drawn air to the respirator via an airflow path; first and second conduits for directing filtered air from the respective first and second air filter systems to the respirator; and a support for supporting the respirator system on the user's head, wherein the respirator is arranged at a front of the support to engage the front of a user's head when in use, and the first and second air filter systems are arranged at the rear of the support to sit at the rear of a user's head when in use, wherein the support comprises an adjusting means for adjusting a spacing between the two air filter systems to secure the support to the user's head.
A respirator system for delivering filtered atmospheric air to a user for inhalation, the respirator system comprising: a respirator through which a user can inhale filtered air; first and second air filter systems, each air filter system being configured to filter and draw air from the atmosphere into the respirator system and to deliver filtered drawn air to the respirator via an airflow path; first and second conduits for directing filtered air from the respective first and second air filter systems to the respirator; and a support for supporting the respirator system on the user's head, wherein the respirator is arranged at a front of the support to engage the front of a user's head when in use, and the first and second air filter systems are arranged at the rear of the support to sit at the rear of a user's head when in use, wherein the support comprises an adjusting means for adjusting a spacing between the two air filter systems to secure the support to the user's head.
A transmitter and/or receiver of the invention comprises of a system for encoding or decoding respectively an authentication signal comprising of an open CDMA signal in which a portion of the chips forming it are replaced with chips at cryptographically derived positions in the CDMA sequence. Thus, a suitably authorised receiver receiving such an encoded authorisation signal, and adapted to decode the cryptographically derived positions is able to generate a correlation with its own internal modified reference signal that proves the identity of the transmitted signal, whilst unauthorised receiver is able to correlate any unmodified chips with its open internal reference. The proportion of chips altered is preferably chosen to allow an unauthenticated receiver to successfully recover the receive signal. An authorised receiver may be adapted to correlate using both a modified reference code, and an open reference code, and compare the results.
Some embodiments are directed to a preform including reinforcing fibres and shape memory alloy (SMA) wires, a composite material including a polymer matrix with a preform embedded therein, articles including a composite material, methods of making preforms, composite materials and articles.
B29C 70/88 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced
B29C 70/20 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in a single direction, e.g. roving or other parallel fibres
B29C 70/22 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
B29C 70/24 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in at least three directions forming a three dimensional structure
D03D 11/00 - Double or multi-ply fabrics not otherwise provided for
D03D 15/50 - Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
Some embodiments are directed to a drive configuration for a skid-steered vehicle that has a pair of traction motors for rotationally driving opposite outputs of the drive configuration. The traction motors are operatively connected to the outputs via respective gearing arrangements for selectively varying gear reduction between each of the traction motors and the corresponding output. The drive configuration also has a steer differential in a torque connection with the first and second outputs of the drive configuration. The drive configuration additional has a steer motor operatively connected to the steer differential for selectively varying the rotational speed of the first and second outputs in use. Also, the traction and steer motors define a volume in which the gearing arrangements and steering differential are at least partially located.
B60K 6/445 - Differential gearing distribution type
B60K 1/02 - Arrangement or mounting of electrical propulsion units comprising more than one electric motor
B60K 17/08 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
B60K 17/04 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
B60L 15/20 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performance; Adaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
B62D 11/14 - Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin- differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source
F16H 48/36 - Differential gearings characterised by intentionally generating speed difference between outputs
A non-systematic convolutional decoder of a convolutionally encoded multi-level (levels >2) data stream comprises a shift register and two or more paths of exclusive-OR (XOR) gates, arranged to reconstruct an original input information stream, each path having a quantiser arranged to quantise the signal to two levels, and a set of XOR gates arranged to match an encoding path in an associated convolutional encoder, and a selector arranged to feed an output from each path to a single input of the shift register. If the paths have differing values at their output, the selector may choose the value from the path based upon a function of the multi-level signals associated with each path, such as the path with the largest absolute signal level. The decoder provides a simple means for decoding signals while allowing the signal to also or instead be decoded using e.g. a Viterbi decoder if higher performance is required.
H04L 1/00 - Arrangements for detecting or preventing errors in the information received
H03M 13/23 - Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using convolutional codes, e.g. unit memory codes
H03M 13/25 - Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM]
H03M 13/37 - Decoding methods or techniques, not specific to the particular type of coding provided for in groups
45.
Transmission for blocking upshifts and downshifts under certain torque conditions
Some embodiments are directed toward a transmission having a torque input and output, drive members selectively engageable for sequentially changing gear ratio between the torque input and output, the transmission also having a shaft with a shifting feature. The transmission includes a drum having a track around its outer perimeter and arranged such that torque can be transferred by rotating the shaft, the drum capable of being moved along the length of the shaft, a biasing mechanism for urging the drum towards a rest position along the length of the shaft, and a drive member selector member provided in operative relation to the track, wherein by rotating the shaft the drive member selector member can be selectively urged into contact with a first drive member for drivingly engaging therewith in a first torque connection or into contact with a second drive member for drivingly engaging in a second torque connection.
F16H 61/18 - Preventing unintentional or unsafe shift
F16H 61/16 - Inhibiting shift during unfavourable conditions
F16H 61/684 - Control functions within change-speed- or reversing-gearings for conveying rotary motion specially adapted for stepped gearings without interruption of drive
F16H 63/08 - Multiple final output mechanisms being moved by a single common final actuating mechanism
F16H 3/091 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously- meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears including a single countershaft
46.
PREPARATION OF COPPER (I) 5-NITROTETRAZOLATE (DBX-1) FROM BIS(ETHYLENEDIAMINE) COPPER (II) NITROTETRAZOLATE
A method of making copper (I) 5-nitrotetrazolate (DBX-1) in isolated form comprising: a) reacting bis(ethylenediamine) copper (II) nitrotetrazolate with nitric acid or sulfuric acid to form a reaction product, subsequently b) reducing the reaction product of a) with ascorbate or ascorbic acid and reacting with copper chloride or copper sulfate to form copper (I) 5-nitrotetrazolate, and subsequently isolating the copper (I) 5-nitrotetrazolate (DBX-1) as a precipitate. The copper (I) 5-nitrotetrazolate produced by said method is useful as a primary explosive.
C06B 21/00 - Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
C06B 25/06 - Compositions containing a nitrated organic compound the nitrated compound being an aromatic with two or more nitrated aromatic compounds present
C06B 43/00 - Compositions characterised by explosive or thermic constituents not provided for in groups
C06B 49/00 - Use of single substances as explosives
C07B 41/00 - Formation or introduction of functional groups containing oxygen
C07B 41/10 - Salts, halides or anhydrides of carboxyl groups
C07C 7/00 - Purification, separation or stabilisation of hydrocarbons; Use of additives
H01B 1/16 - Conductive material dispersed in non-conductive inorganic material the conductive material comprising metals or alloys
A radio receiver includes a downconverter for downconverting dual sideband signals such as Binary Offset Carrier (BOC) signals from multiple sources to produce an upper and a lower sideband signal, and chip-matched filters for filtering each of the sideband signals. The output of each filter is provided to a series of separate channels, one for each source, where there are at least Early, Prompt and Late gates. Each gate has a nearest-neighbour sampler and a multiplier for multiplying with an appropriate part of a spreading code, a mixer for removing Doppler or other frequency offsets and an integrator. The invention provides a means for demodulating signals such as BOC modulated satellite navigation signals in an efficient manner by using a single downconverter for the received signals of interest from the multiple sources.
Some embodiments are directed to a shaped charge liner including an apex end and a base end and defining a main liner axis that passes through the apex and base ends, the liner being rotationally symmetric about the main liner axis wherein the liner has discrete rotational symmetry about the main liner axis.
Gearboxes for a skid steered vehicle comprising layouts in which all electric propulsion drive motors and electric steering motors are located on one side of the gearbox, and layouts in which the drive inputs of the electric propulsion drive motors are located face to face. Gear change units and gear packaging configurations suitable for such gearboxes.
B60K 1/02 - Arrangement or mounting of electrical propulsion units comprising more than one electric motor
B62D 11/10 - Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin- differential or epicyclic gears
F16H 3/66 - Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another
F16H 48/10 - Differential gearings with gears having orbital motion with orbital spur gears
A drive unit for a skid steered vehicle comprises a controlled differential positioned between two shafts. The end of each shaft forms an output of the drive unit connected directly to the differential outputs via the shafts. A steer motor is in driveable communication with the differential, and an electric propulsion motor is in driveable communication with the shaft outputs. A gear reduction unit, and optional gear change unit, is positioned between the differential and the electric propulsion motor. The electric propulsion motor, the gear reduction unit and optional gear change unit are connected in a parallel connection with an output of the differential to the shaft outputs. The optional gear change unit comprises an epicyclic gear reduction unit having an input and an output which provides drive input from the gear change unit to the shaft. A gear change set has a master gear that receives drive output from the electric propulsion motor, and slave gears which are driven by the master gear via one or more gear chains. A dog clutch slideably engages the input of the gear reduction unit and selectively engages with the master gear or slave gears so that the selected position of the dog clutch determines which gear is engaged.
B62D 11/16 - Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin- differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source the additional power supply being supplied mechanically
F16H 48/36 - Differential gearings characterised by intentionally generating speed difference between outputs
B62D 11/04 - Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of separate power sources
F16H 3/66 - Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another
F16H 37/08 - Combinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings with arrangements for dividing torque between two or more intermediate shafts with differential gearing
A drive unit for a skid steered vehicle comprises a controlled differential positioned between two shafts. The end of each shaft forms an output of the drive unit connected directly to the differential outputs via the shafts. A steer motor is in driveable communication with the differential, and an electric propulsion motor is in driveable communication with the shaft outputs. A gear reduction unit, and optional gear change unit, is positioned between the differential and the electric propulsion motor. The electric propulsion motor, the gear reduction unit and optional gear change unit are connected in a parallel connection with an output of the differential to the shaft outputs. The optional gear change unit comprises an epicyclic gear reduction unit having an input and an output which provides drive input from the gear change unit to the shaft. A gear change set has a master gear that receives drive output from the electric propulsion motor, and slave gears which are driven by the master gear via one or more gear chains. A dog clutch slideably engages the input of the gear reduction unit and selectively engages with the master gear or slave gears so that the selected position of the dog clutch determines which gear is engaged.
B62D 11/16 - Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin- differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source the additional power supply being supplied mechanically
B62D 11/04 - Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of separate power sources
F16H 3/66 - Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another
Gearboxes for a skid steered vehicle comprising layouts in which all electric propulsion drive motors and electric steering motors are located on one side of the gearbox, and layouts in which the drive inputs of the electric propulsion drive motors are located face to face. Gear change units and gear packaging configurations suitable for such gearboxes.
A system for imaging material, typically in an underground scenario, comprising of a plurality of conductive electrodes supported on a conductive substrate positionable in an environment to be imaged, a signal generator connected to at least two of the electrodes, and a signal detector connected to at least two of the electrodes, and wherein an impedance compensator is arranged between each electrode and its substrate to counter parasitic impedance between the two. Typically the impedance compensator may be arranged to act as a negative capacitance, which may be approximately equal to any capacitance between the electrode and the substrate. An electrode may be a drive electrode coupled to a signal generator, or a detector electrode coupled to a detector, or may be reconfigurable to act as either one.
G01V 3/02 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation operating with propagation of electric current
G01V 3/04 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation operating with propagation of electric current using dc
G01V 3/06 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation operating with propagation of electric current using ac
G01V 3/22 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging operating with propagation of electric current using dc
G01V 3/24 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging operating with propagation of electric current using ac
G01V 3/38 - Processing data, e.g. for analysis, for interpretation or for correction
E21B 49/00 - Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
55.
Products comprising reinforcing fibres and shape memory alloy wires and methods of making thereof
Some embodiments are directed to a three-dimensional (3D) preform including reinforcing fibres and shape memory alloys (SMA) wires and a composite material including a polymer matrix with a 3D-preform embedded therein, wherein the 3D-preform includes reinforcing fibres and shape memory alloy (SMA) wires.
B32B 5/00 - Layered products characterised by the non-homogeneity or physical structure of a layer
B29B 11/16 - Making preforms characterised by structure or composition comprising fillers or reinforcements
B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
B29C 70/24 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in at least three directions forming a three dimensional structure
B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
D03D 25/00 - Woven fabrics not otherwise provided for
56.
Materials comprising shape memory alloy wires and methods of making these materials
Some embodiments relate to non-woven composite materials, methods of making and uses thereof, including articles including the composite structures. More particularly, some embodiments relates to non-woven composite materials possessing desirable impact performance and penetration resistance.
C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
B29C 70/20 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in a single direction, e.g. roving or other parallel fibres
B29C 70/38 - Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
Some embodiments are directed to a gearing assembly including a rotary input member, a rotary output member and a gearing arrangement between the input member and the output member selectively engageable to effect a driving engagement between the input member and the output member through at least a first torque connection having a first gear ratio and a second torque connection having a second gear ratio. One of the rotary input member and the rotary output member includes a first shaft and the first torque connection includes a first dog clutch including a dog hub having a hub set of teeth and a surrounding dog ring including a ring set of teeth. The hub and ring sets of teeth are radially projecting and mutually engageable. The dog hub is mounted on the first shaft so as to allow axial movement of the dog hub relative to the shaft.
F16H 3/66 - Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another
F16H 63/30 - Constructional features of the final output mechanisms
F16D 11/14 - Clutches in which the members have interengaging parts with clutching members movable only axially
F16D 21/00 - Systems comprising a plurality of mechanically-actuated clutches
B60K 7/00 - Disposition of motor in, or adjacent to, traction wheel
B60K 17/02 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
B60K 17/04 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
B60K 17/08 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
B32B 27/20 - Layered products essentially comprising synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
H01Q 15/08 - Refracting or diffracting devices, e.g. lens, prism formed of solid dielectric material
B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
H01Q 1/42 - Housings not intimately mechanically associated with radiating elements, e.g. radome
B29D 11/00 - Producing optical elements, e.g. lenses or prisms
B29C 65/08 - Joining of preformed parts; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
B29C 65/70 - Joining of preformed parts; Apparatus therefor by moulding
B29C 44/00 - Shaping by internal pressure generated in the material, e.g. swelling or foaming
59.
HIGHLY DIEELECTRIC METAL OXIDE FILLED POLYMERS FOR RADIO FREQUENCY PRODUCTS
B32B 27/20 - Layered products essentially comprising synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
B29L 11/00 - Optical elements, e.g. lenses, prisms
B29L 31/34 - Electrical apparatus, e.g. sparking plugs or parts thereof
B29C 65/24 - Joining of preformed parts; Apparatus therefor by heating, with or without pressure using heated tool characterised by the means for heating the tool
Filled polymer compositions and methods of making said filled polymer compositions and shaped articles or products comprising or formed from said polymer compositions.
Filled polymer compositions and methods of making said filled polymer compositions and shaped articles or products comprising or formed from said polymer compositions.
B29C 44/42 - Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
B29C 44/00 - Shaping by internal pressure generated in the material, e.g. swelling or foaming
B29C 44/34 - Component parts, details or accessories; Auxiliary operations
B29C 45/56 - Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
Filled polymer compositions and methods of making said filled polymer compositions and shaped articles or products comprising or formed from said polymer compositions.
C08L 23/10 - Homopolymers or copolymers of propene
C08L 23/28 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with halogens or halogen-containing compounds
C08L 45/00 - Compositions of homopolymers or copolymers of compounds having no unsaturated aliphatic radicals in a side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic or in a heterocyclic ring system; Compositions of derivatives of such polymers
Method of making a shaped article (5) comprising at least two parts (10, 15) wherein the first part comprises at least one projection (20) and the second part comprises at least one recess (22) by preparing said first part and said second part in a moulding process and joining the prepared first and second part together by engaging the at least one projection with the at least one recess to form said shaped article.
B29C 69/00 - Combinations of shaping techniques not provided for in a single one of main groups , e.g. associations of moulding and joining techniques; Apparatus therefor
B29C 65/02 - Joining of preformed parts; Apparatus therefor by heating, with or without pressure
B29C 65/00 - Joining of preformed parts; Apparatus therefor
Method and apparatus for imaging a biological sample (30) by total internal reflection of electromagnetic radiation in the range 10-100 GHz using a prism (5) and a spatial light modulator (10)providing a succession of different binary patterns onto the interface prism-sample (12) so as to modulate the reflected GHz beam (45), enabling to reconstruct an image of the sample (30).
G01N 21/3581 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using Terahertz radiation
Some embodiments are directed to a composite material comprising a polymer matrix having reinforcing fibres and metallic wires embedded therein, articles including the composite material and methods of fabrication of the composite material and articles.
A method of operating a mobile remotely controlled ground robot in difficult terrain. Rear driven tracked arms of the robot are pivoted rearward and upward to trail main driven tracks of the robot at a fixed angle relative to and above the ground. The main tracks of the robot are driven forward to traverse the ground. An obstacle is traversed by driving the main tracks to traverse the obstacle pivoting the forward end of the robot upwards and at least one of the rear driven tracks are driven and engaging the ground and/or obstacle to advance the robot forward over the obstacle and to prevent the robot from tipping over backwards.
Some embodiments are directed to a drive configuration for a skid steered vehicle includes first and second torque outputs coupled by a differential and in a torque connection with first and second electric motors, the differential being configured to mechanically transfer power across itself; and a mechanical power splitter having a first torque transfer feature in a torque connection with a combustion engine, a second torque transfer feature in a torque connection with a respective additional electric motor and a third torque transfer feature in a torque connection with at least one of the first and second torque outputs of the drive configuration, wherein torque output from the or each the mechanical power splitter in use is dependent on torques generated by the combustion engine and the associated additional electric motor.
B62D 11/18 - Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin- differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source the additional power supply being supplied hydraulically
B60K 17/16 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
B60K 23/04 - Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for differential gearing
B62D 11/16 - Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin- differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source the additional power supply being supplied mechanically
F16H 48/36 - Differential gearings characterised by intentionally generating speed difference between outputs
A thin flexible conformable electrochemical cell for powering a wearable electrical device comprising an inner electrode having an active electrode face of one charge and an outer electrode having an active electrode face of the opposite charge separated by a separator, wherein said separator comprises an electrolyte layer as a single continuous layer folded around the inner electrode, and wherein the cell has a single continuous flexible coating material folded around the separator and the inner electrode so as to offer protection for the cell, and wherein the coating material is sealable so as define access to the cell for electrode contacts for connection with the electrical device, and so as to offer avoidance of the cell short circuiting in use. Also provided are methods for cell preparation.
H01M 50/00 - Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
H01M 50/116 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material
H01M 6/16 - Cells with non-aqueous electrolyte with organic electrolyte
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H01M 10/0583 - Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with ‘’Z’’-shaped electrodes or separators
H01M 4/02 - Electrodes composed of, or comprising, active material
09 - Scientific and electric apparatus and instruments
45 - Legal and security services; personal services for individuals.
Goods & Services
Electronic measuring, detecting and monitoring instruments, indicators and controllers to detect and provide evidence of intentional electromagnetic pulse interference IEMI and other high power radio frequency transient disturbances, namely, sensors and detectors; safety, security, protection and signaling devices; data communications receivers; signal converters; data storage devices in the nature of an internal SD card; electromagnetic interference indicators; electromagnetic measuring detectors; parts and fittings for all of the aforesaid goods. Safety and security services and electronic monitoring services for protection of people and property from intentional electromagnetic pulse interference IEMI and other high power radio frequency transient disturbances; security consultancy and consultancy relating to the protection of people and property from intentional electromagnetic pulse interference IEMI and other high power radio frequency transient disturbances.
An oil and gas well shaped charge perforator capable of providing an exothermic reaction after detonation is provided, comprising a housing (2), a high explosive (3), and a reactive liner (6) where the high explosive is positioned between the reactive liner and the housing. The reactive liner (6) is produced from a reactive composition which is capable of sustaining an exothermic reaction during the formation of the cutting jet. The composition is a pressed i.e. compacted particulate composition comprising at least two metals, wherein one of the metals is present as spherical particulate, and the other metal is present as a non-spherical particulate. There may also be at least one further metal, which is not capable of an exothermic reaction with the reactive composition, present in an amount greater than 10% w/w of the liner. To aid consolidation a binder may also be added.
Some embodiments are directed to a transmission including a plurality of shafts, each carrying a plurality of drive members, the drive members on each shaft arranged to operatively cooperate with those carried by at least one other shaft for transferring load between a torque input and a torque output of the transmission in use, the transmission being configured such that respective resultant gear ratios between the torque input and the torque output can be selected in use from each of a plurality of groups thereof by changing a load path between the torque input and the torque output, wherein each group of selectable resultant gear ratios has a load path feature for transferring load between a pair of the shafts which is common to the selectable resultant gear ratios within that group.
F16H 3/091 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously- meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears including a single countershaft
F16H 37/04 - Combinations of toothed gearings only
75.
Shaped charge and method of modifying a shaped charge
Some embodiments are directed to a shaped charge liner including an apex end and a base end and defining a main liner axis that passes through the apex and base ends, the liner being rotationally symmetric about the main liner axis wherein the liner has discrete rotational symmetry about the main liner axis.
A disposable medical device for medication of skin lesions is described, which comprises a sealed and sterilized external envelope (1), inside which a chamber or tray (2) is provided, in which a collagen sheet (3) is accommodated, on which collagen sheet (3) a suspension of epithelial or dermal-epithelial cells, consisting of patient's intact skin shreds, subjected to crushing, shredding and homogenization, is adhered.
A remotely controlled packable robot includes a chassis with a top surface and a bottom surface, a motive subsystem for maneuvering the chassis, an open channel under the robot defined by the chassis and the motive subsystem, a camera assembly, and a robot arm Including a rotatable shoulder, an upper arm pivotable with respect to the shoulder, a forearm, an elbow between the upper arm and the forearm, a wrist connected to the forearm, and a gripper attached to the wrist. A rearward arm base member mount between the chassis and the rotatable arm shoulder is pivotable with respect to the chassis to store the arm underneath the robot In the open channel. A forward camera assembly base member mount for the camera is pivotable with respect to the chassis to store the camera assembly underneath the robot in the open channel. Another camera mount is for retaining the camera assembly on the shoulder of the robot arm. A novel power distribution subsystem is also disclosed.
A remotely controlled packable robot includes a chassis with a top surface and a bottom surface, a motive subsystem for maneuvering the chassis, an open channel under the robot defined by the chassis and the motive subsystem, a camera assembly, and a robot arm Including a rotatable shoulder, an upper arm pivotable with respect to the shoulder, a forearm, an elbow between the upper arm and the forearm, a wrist connected to the forearm, and a gripper attached to the wrist. A rearward arm base member mount between the chassis and the rotatable arm shoulder is pivotable with respect to the chassis to store the arm underneath the robot In the open channel. A forward camera assembly base member mount for the camera is pivotable with respect to the chassis to store the camera assembly underneath the robot in the open channel. Another camera mount is for retaining the camera assembly on the shoulder of the robot arm. A novel power distribution subsystem is also disclosed.
A remotely controlled packable robot includes a chassis, a motive subsystem for maneuvering the chassis, and an open channel under the robot defined by the chassis and the motive subsystem. A rearward arm base member mount is located between the chassis and a rotatable arm shoulder and is pivotable with respect to the chassis to store the arm underneath the robot in the open channel.
B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
B62D 55/06 - Endless-track vehicles with tracks and without ground wheels
B25J 5/00 - Manipulators mounted on wheels or on carriages
B62D 55/065 - Multi-track vehicles, i.e. more than two tracks
Some embodiments are directed to a shaped charge liner including an apex end and a base end and defining a main liner axis that passes through the apex and base ends, the liner being rotationally symmetric about the main liner axis wherein the liner has discrete rotational symmetry about the main liner axis.
A preform comprising reinforcing fibres and shape memory alloy (SMA) wires, a composite material comprising a polymer matrix with a preform embedded therein, articles comprising a composite material, methods of making preforms, composite materials and articles.
B29C 70/20 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in a single direction, e.g. roving or other parallel fibres
B29B 11/16 - Making preforms characterised by structure or composition comprising fillers or reinforcements
B29C 70/22 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
B29C 70/24 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in at least three directions forming a three dimensional structure
B29C 70/88 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced
D03D 15/02 - Woven fabrics characterised by the material or construction of the yarn or other warp or weft elements used the warp or weft elements being of stiff material, e.g. wire, cane, slat
Some embodiments are directed to a drive configuration for a skid-steered vehicle that has a pair of traction motors for rotationally driving opposite outputs of the drive configuration. The traction motors are operatively connected to the outputs via respective gearing arrangements for selectively varying gear reduction between each of the traction motors and the corresponding output. The drive configuration also has a steer differential in a torque connection with the first and second outputs of the drive configuration. The drive configuration additional has a steer motor operatively connected to the steer differential for selectively varying the rotational speed of the first and second outputs in use. Also, the traction and steer motors define a volume in which the gearing arrangements and steering differential are at least partially located.
B60K 1/02 - Arrangement or mounting of electrical propulsion units comprising more than one electric motor
B60K 17/08 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
B60K 17/04 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
B60K 6/445 - Differential gearing distribution type
B60L 15/20 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performance; Adaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
B62D 11/14 - Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin- differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source
F16H 48/36 - Differential gearings characterised by intentionally generating speed difference between outputs
A wind turbine including a support structure and one or more turbine blades is presented, that incorporates ways for reducing the radar cross section (RCS), wherein the support structure is notionally divided into an upper section in the shadow of the blade sweep area, and a lower section beneath the upper section, wherein the upper section is adapted to have the ways for reducing the RCS, and the lower section does not have the adaptation. The invention makes use of the realisation that the blade masking the tower as it rotates (or the blade being masked by the tower if facing away from a radar), contributes significantly to interference to radar systems, and so localised application of e.g. RAM can give good RCS reduction at a lower cost than treating the whole structure.
The disclosed radio receiver comprises a downconverter for downconverting dual sideband signals such as Binary Offset Carrier (BOC)signals from multiple sources to produce an upper and a lower sideband signal, and chip-matched filters for filtering each of the sideband signals. The output of each filter is provided to a series of separate channels, one for each source, where there are at least Early, Prompt and Late gates. Each gate has a nearest-neighbour sampler and a multiplier for multiplying with an appropriate part of a spreading code, a mixer for removing Doppler or other frequency offsets and an integrator. The invention provides a means for demodulating signals such as BOC modulated satellite navigation signals in an efficient manner by using a single downconverter for the received signals of interest from the multiple sources.
A code division multiaccess (CDMA) communications system with low probability of intercept, low probability of detect (LPI/LPD) includes at least one data dictionary stored on a storage device of a sender subsystem and a recipient subsystem. The at least one data dictionary includes at least one data predetermined start time and date, at least one data predetermined end time and date based on a mission length or a predetermined wrap time and date, a CDMA chip rate, and a complex zero-mean independent and identically distributed (iid) sequence where each complex number in the complex zero-mean iid sequence represents a CDMA chip stored on the storage device of the sender subsystem and the recipient subsystem. The system includes a tangible, non-transitory, machine-readable medium comprising machine-executable instructions which, when executed by at least one processor of a machine, cause the at least one processor to: receive a message, convert the message to symbols with corresponding phasors, determine a date and time to send the message, look up a data spreading vector for each corresponding phasor by providing a mutually agreed number of chips per phasor stored on the storage device of the sender subsystem and the recipient subsystem and by matching the date and time the message is to be sent to the at least one data predetermined start time and date and the at least one data predetermined end time and date. Each data spreading vector is multiplied by its corresponding phasor to create a data spread vector for each data spreading vector. The sender subsystem is configured to sequentially transmit each chip of each data spread vector as a signal.
A remotely controlled packable robot features a chassis with a top surface and a bottom surface, a pair of main tracks for maneuvering the chassis, and an open channel under the robot defined by the bottom surface of the chassis and the main tracks. A robot arm is foldable from a stored position in the open channel underneath the robot chassis to a deployed position extending upwards from the top surface of the chassis. A camera assembly may be foldable from a stowed position in the open channel underneath the robot chassis next to the robot arm to a deployed position extending upwards from the top surface of the chassis.
B62D 55/075 - Tracked vehicles for ascending or descending stairs
B62D 57/024 - Vehicles characterised by having other propulsion or other ground-engaging means than wheels or endless track, alone or in addition to wheels or endless track with ground-engaging propulsion means, e.g. walking members specially adapted for moving on inclined or vertical surfaces
A drone detection radar can include a plurality of antenna systems, each antenna system being arranged to transmit a signal into an associated sector, and to receive signals reflected from targets in the sector, the sectors collectively forming a monitored volume, and wherein a sub-set of the antenna systems are active at any one time, with the active sub-set of antenna systems being arranged to monitor their respective volumes for a duration sufficient to measure Doppler signals associated with slow moving drones, with the radar being arranged to switch to a different sub-set of antenna systems after each duration, such that the whole volume is monitored within a predetermined period. Combining a staring array from an antenna system with a plurality of switched antenna system allows drones to be both detected and tracked, with appropriate selection of the predetermined period.
G01S 7/41 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group using analysis of echo signal for target characterisation; Target signature; Target cross-section
G01S 13/42 - Simultaneous measurement of distance and other coordinates
G01S 13/52 - Discriminating between fixed and moving objects or between objects moving at different speeds
G01S 13/87 - Combinations of radar systems, e.g. primary radar and secondary radar
H01Q 21/20 - Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along, or adjacent to, a curvilinear path
G01S 13/56 - Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection
G01S 7/35 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group - Details of non-pulse systems
92.
Method and apparatus for the reception of a signal
A method for the reception of a frequency hopped direct sequence spread spectrum signal includes acquiring the signal by splitting the received signal into a plurality of processing sub-channels, each corresponding to one or more hop frequencies; and within each sub-channel: i) subtracting any sub-carrier frequency from the received signal; ii) filtering the signal from (i) using a chip-matched filter; iii) selecting a sub-set of samples from the filtered signal; iv) correlating the sampled signal from step (iii) with a known reference signal to produce at least one correlator output. The output(s) from each sub-channel are provided to an input of a corresponding one or more common discrete time Fourier transforms (DTFT), and an output therefrom having a peak above a predetermined threshold is selected for further processing in the receiver. The method is a less expensive way of tracking the signal and can demodulate appropriately modulated signals.
A composite material comprising a polymer matrix having reinforcing fibres and metallic wires embedded therein, articles comprising said composite material and methods of making said composite material and articles.
The invention provides a gearing assembly (5) comprising a rotary input member (1 b), a rotary output member (3) and a gearing arrangement (52) between the input member and the output member selectively engageable to effect a driving engagement between the input member and the output member through at least a first torque connection having a first gear ratio and a second torque connection having a second gear ratio. One of the rotary input member and the rotary output member comprises a first shaft and the first torque connection comprises a first dog clutch comprising a dog hub (51 ) comprising a hub set of teeth (51 a) and a surrounding dog ring (53) comprising a ring set of teeth (53a), the hub and ring sets of teeth being radially projecting and mutually engageable, the dog hub being mounted on the first shaft so as to allow axial movement of the dog hub relative to the shaft and dog ring with rotation of the dog hub relative to the shaft being resisted such that when the dog hub is axially aligned with the dog ring, the hub and ring sets of teeth engage and rotational drive may be transferred between the first shaft and the dog ring. The hub and ring sets of teeth are dimensioned and spaced so that upon axial movement between the dog hub and the dog ring with the sets of teeth appropriately in register with one another, the teeth in each set may pass through spacings between the teeth in the respective other set, so that the dog hub is moveable between a first disengaged position with the hub set of teeth axially spaced in a first direction from the ring set of teeth, a first engaged position with the hub set of teeth aligned and engaged with the ring set of teeth, and a second disengaged position with the hub set of teeth axially spaced in a second direction from the ring set of teeth.
F16H 3/24 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear with gears shiftable only axially with driving and driven shafts coaxial
F16H 3/66 - Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another
F16H 3/70 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
B60K 7/00 - Disposition of motor in, or adjacent to, traction wheel
B60K 17/02 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
F16D 21/04 - Systems comprising a plurality of mechanically-actuated clutches for interconnecting three or more shafts or other transmission members in different ways with a shaft carrying a number of rotatable transmission members, e.g. gears, each of which can be connected to the shaft by a clutching member or members between the shaft and the hub of the transmission member
F16D 11/08 - Clutches in which the members have interengaging parts actuated by moving a non-rotating part axially
F16D 11/10 - Clutches in which the members have interengaging parts actuated by moving a non-rotating part axially with clutching members movable only axially
F16D 11/14 - Clutches in which the members have interengaging parts with clutching members movable only axially
F16H 3/083 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously- meshing gears, that can be disengaged from their shafts with radially acting and axially controlled clutching members, e.g. sliding keys
The invention provides a gearing assembly (5) comprising a rotary input member (1 b), a rotary output member (3) and a gearing arrangement (52) between the input member and the output member selectively engageable to effect a driving engagement between the input member and the output member through at least a first torque connection having a first gear ratio and a second torque connection having a second gear ratio. One of the rotary input member and the rotary output member comprises a first shaft and the first torque connection comprises a first dog clutch comprising a dog hub (51 ) comprising a hub set of teeth (51 a) and a surrounding dog ring (53) comprising a ring set of teeth (53a), the hub and ring sets of teeth being radially projecting and mutually engageable, the dog hub being mounted on the first shaft so as to allow axial movement of the dog hub relative to the shaft and dog ring with rotation of the dog hub relative to the shaft being resisted such that when the dog hub is axially aligned with the dog ring, the hub and ring sets of teeth engage and rotational drive may be transferred between the first shaft and the dog ring. The hub and ring sets of teeth are dimensioned and spaced so that upon axial movement between the dog hub and the dog ring with the sets of teeth appropriately in register with one another, the teeth in each set may pass through spacings between the teeth in the respective other set, so that the dog hub is moveable between a first disengaged position with the hub set of teeth axially spaced in a first direction from the ring set of teeth, a first engaged position with the hub set of teeth aligned and engaged with the ring set of teeth, and a second disengaged position with the hub set of teeth axially spaced in a second direction from the ring set of teeth.
F16H 3/24 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear with gears shiftable only axially with driving and driven shafts coaxial
B60K 7/00 - Disposition of motor in, or adjacent to, traction wheel
B60K 17/02 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
F16D 11/08 - Clutches in which the members have interengaging parts actuated by moving a non-rotating part axially
F16D 11/10 - Clutches in which the members have interengaging parts actuated by moving a non-rotating part axially with clutching members movable only axially
F16D 11/14 - Clutches in which the members have interengaging parts with clutching members movable only axially
F16D 21/04 - Systems comprising a plurality of mechanically-actuated clutches for interconnecting three or more shafts or other transmission members in different ways with a shaft carrying a number of rotatable transmission members, e.g. gears, each of which can be connected to the shaft by a clutching member or members between the shaft and the hub of the transmission member
F16H 3/083 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously- meshing gears, that can be disengaged from their shafts with radially acting and axially controlled clutching members, e.g. sliding keys
F16H 3/66 - Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another
F16H 3/70 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
A system for compensating for phase noise, with particular application in lidar, includes a compensation interferometer that receives a signal from a source, and splits it into a first and second path, with a path length difference Δτ between them. Typically the path length is significantly less than that of the return distance to a target. The output of the compensation interferometer, which consists of phase noise generated in time Δτ is vectorially summed during a time similar to a signal flight time to a target, and the result used to reduce phase noise present on measurements of a target. It further includes means for selecting Δτ such that competing noise elements are reduced or optimised.
G01S 17/36 - Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated with phase comparison between the received signal and the contemporaneously transmitted signal
G01S 7/4915 - Time delay measurement, e.g. operational details for pixel components; Phase measurement
G01B 9/02055 - Reduction or prevention of errors; Testing; Calibration
G01S 7/35 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group - Details of non-pulse systems
G01S 13/34 - Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
An airborne wind profiling portable radar (AWiPPR) system comprising a mobile airborne platform including one or more navigation units configured to produce navigation data including at least the position and orientation of the mobile airborne platform. A radar unit is mounted and positioned to the mobile airborne platform, the radar unit is configured to transmit a wide-band frequency modulated continuous wave radar signal in a downward direction from the mobile airborne platform towards the ground and configured to continuously receive a reflected signal from a plurality of clear air scatters (CAS) targets or volumetric targets and output radar data. An inertial measurement unit (IMU) in communication with the one or more navigation units and the radar unit is configured to receive the navigation data and determine the position and orientation of the radar at a specific point in time and output IMU data. A data acquisition unit in communication with the radar unit and the IMU is configured to receive and time align radar data and the IMU data for each reflected signal from each of the plurality of CAS targets or volumetric targets to provide an antenna pointing direction for each received reflected signal. The data acquisition unit is configured to process the time aligned radar data and IMU data to determine a distance and a Doppler velocity of each of the plurality of CAS targets or volumetric targets, provide a range, a velocity, and an antenna pointing direction for each of the plurality of CAS targets or volumetric targets, and calculate a vector wind velocity using the range, the velocity, and the antenna pointing direction for each of the plurality of CAS targets or volumetric scatters targets. The data acquisition unit may be configured to further correct the range, the velocity, and/or the antenna pointing direction of each of the plurality of CAS targets or volumetric targets to accommodate for a motion shift in data produced by one or more of: a relative motion and orientation of the mobile airborne platform, a Doppler spread in the range, the velocity and/or the antenna pointing direction, and a ground echo.
G01S 13/95 - Radar or analogous systems, specially adapted for specific applications for meteorological use
G01C 21/16 - Navigation; Navigational instruments not provided for in groups by using measurement of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation
G01S 13/86 - Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
G01S 13/58 - Velocity or trajectory determination systems; Sense-of-movement determination systems
G01W 1/02 - Instruments for indicating weather conditions by measuring two or more variables, e.g. humidity, pressure, temperature, cloud cover or wind speed
A frequency selective transmittance panel has first and second conductive layers separated by dielectric spacing layer, wherein the first conductive layer comprises a plurality of unit cells, each cell comprising a conductive region at least partially surrounded by a non-conductive region, and the second conductive layer comprises a plurality of unit cells each comprising a non-conductive region at least partially surrounded by a conductive region, wherein the unit cells from the both the first and second conductive layers are of the same dimensions. The dielectric may comprise a solid dielectric, or may comprise a liquid dielectric having a variable dielectric constant. The relative dimensions of the conductive and non-conductive regions, and the value of the dielectric constant affect the peak transmission frequency through the panel. Some embodiments may have a third conductive layer spaced from the second conductive layer by a second dielectric material.
A steam generator foreign object search and retrieval system and method wherein a curved rail is configured to be deployed from a handhole of the steam generator into and around an outer annulus inside the steam generator shell about a tube bundle of the steam generator. A robot is drivable on the rail around the outer annulus and includes a lance drive. A flexible Iance with a lance head is driven by the robot lance drive to position the flexible lance head between tubes of the tube bundle. One or more tools are associated with the flexible lance head for viewing, pushing, and/or grasping a foreign object between the tubes of the tube bundle.
A drone detection radar configured to identify, from information present on returns reflected from a target, the presence of a drone, by identification, within Doppler information on the returns, of: i) Doppler signals being characteristic of rotating parts of a motor; ii) Doppler signals being characteristic of rotating parts of a blade; and, by identification from temporal information in the reflected returns; and iii) signals being characteristic of flashing of the blade of a drone. The target is assumed to be a drone if signals i, ii, and iii are present above respective predetermined thresholds. The largest return from a drone is often from the body, but this is often filtered by a clutter filter. The identified parameters therefore improve detection ability. The characteristic form of the Doppler signals in some instances allow the body return to be implied, thus providing information as to drone velocity.
G01S 7/41 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group using analysis of echo signal for target characterisation; Target signature; Target cross-section
G01S 13/42 - Simultaneous measurement of distance and other coordinates
G01S 13/52 - Discriminating between fixed and moving objects or between objects moving at different speeds
G01S 13/87 - Combinations of radar systems, e.g. primary radar and secondary radar
H01Q 21/20 - Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along, or adjacent to, a curvilinear path
G01S 13/56 - Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection
G01S 7/35 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group - Details of non-pulse systems
