Abstract: There is provided a load controller for a system, the system comprising a first sub-system arranged to deliver a first load, the load controller being operable to: acquire a first target load profile, being the load initially desired for delivery by the first sub-system over an operational period; measure in real time during an update window within the operational period: a first parameter of the first sub-system, to obtain a first measured Load Controller monitor signal; and the first load, to obtain a first measured load signal; develop in real time a model of the first sub-system, using the first measured monitor signal and the first measured load signal, the model relating the first load to the first parameter; given the first target load profile, and the model of the first sub-system, generate for a future period a first predicted monitor signal, the future period being ahead of the update window; and determine whether the first predicted monitor signal satisfies at least one predetermined criterion.

Abstract: Disclosed is a SONAR system operable to transmit a pair of pulses including an up-chirp signal and a down-chirp signal wherein the down-chirp signal is a time-reversed version of the up-chirp signal. Also disclosed is a related method of operation.

Abstract: A method of providing secure communication between first and second devices comprises the first device and the second device connecting to a server via a secure communication channel. Encryption keys for the devices are generated and data relating to the encryption keys are exchanged via the server in the secure communication channel. A peer-to-peer connection for exchanging data is generated using encrypted connection information for the devices.

Abstract: A vehicle comprising: a shift reactor (110) configured to: receive carbon monoxide produced by the vehicle; and process the received carbon monoxide to produce an output comprising hydrogen; and a fuel cell (112) coupled to the shift reactor (110) and configured to: receive the hydrogen from the shift reactor (110); and produce, using the received hydrogen, electricity for use on the vehicle.

Abstract: A method is provided for adjusting a luminance profile of an image displayed on a look-through display to a user. The method comprises: determining a field of view of the user based on a spatial configuration of the user's head. Determining one or more lighting conditions in the field of view. Adjusting the luminance profile for the image based on the field of view, wherein, as a result of the adjusted luminance profile, the image is reconciled with the field of view.

Abstract: A material for 3D printing is described. The material comprises a polymeric composition comprising a thermoplastic polymer; and from 50 to 99 wt. % ceramic particles comprising a metal, wherein at least 50% by weight of the particles have a diameter in a range from 10 to 100 ?m; wherein the material has a dielectric strength of at least 5 kV/mm and/or a dielectric constant of at least 5.

Abstract: The invention relates to A nose cone assembly for a munition, comprising a transducer array operably linked to a transmission assembly, wherein the transducer array is operably connected to a transducer housing, said transducer housing comprising a first and second surface, wherein said transmission assembly is reversibly operably connected to the second surface of said transducer housing, said transmission assembly comprising a control board and a plurality of electronic circuit boards, wherein at least one electronic circuit board is a transceiver circuit board, said electronic circuit boards being reversibly connected to the control board and being arranged along their longest dimension, at an axis substantially perpendicular to the control board and further arranged such that the electronic circuit boards extend radially inwardly to a substantially rotational centre of the control board.

Abstract: A method and apparatus for the etching of variable depth features in a substrate is described. Movement of the substrate relative to an etchant (e.g. into or out of the etchant) during the etching process is utilised to provide a varying etch time, and hence depth, across the substrate, and in various examples this is enabled without requiring a varying mask.

Abstract: There is provided a thermal management apparatus for use with a vehicle comprising: a chassis in thermal contact with one or more first components that require thermal management and one or more second components that require thermal management, wherein the chassis is configured to transfer heat from the one or more first components to the one or more second components.

Abstract: An aircraft emergency control system comprises at least one sensor configured to output an electronic signal relating to detection of incapacitation of at least one aircraft crew member. A processor is configured to receive and process the electronic signal to determine whether emergency action is to be taken. A control unit is configured to communicate, in use, a control signal to an avionics system of the aircraft in relation to the emergency action if the processor determines that emergency action is to be taken.

Abstract: A method for assisting a pilot to navigate an aircraft when taxiing is disclosed. A centre line of a route, conformal to outside scenery, is displayed on an eyes out screen associated with the pilot. A pictorial indication of the alignment of the undercarriage with the centre line is displayed on the eyes out screen. Further graphical information related to the navigation is displayed on the eyes out screen.

Abstract: A method and apparatus for classifying and/or identifying materials by means of their spectral response to gamma radiation. Classification is carried out by irradiating multiple different samples with gamma radiation, detecting a spectral response in the backscatter direction, sorting the spectral response into energy bands and selecting a combination of energy bands to define a relationship that best distinguishes between clusters of spectral responses for different material classes. Two or more of the energy bands may overlap.

Abstract: There is provided an arming apparatus for a store, the apparatus comprising: a first attachment system and a second attachment system; a linking connector coupled with the first attachment system and the second attachment system; and an arming connector coupled with the linking connector and a first fuze input of the store; wherein each of the first attachment system and the second attachment system comprises: an arming unit; a first frangible connector coupled with the arming unit and the linking connector; and a second frangible connector coupled with the linking connector and the store.

Abstract: Apparatus for a Directed-Energy Weapon An apparatus for a directed-energy weapon comprises: an assessment system arranged to, during an assessment phase, perform an assessment of a target environment, wherein the target environment comprises a target, and the assessment comprises determining a possible engagement efficiency of the target by the directed-energy weapon; and a controller arranged to, during an engaging phase, control the directed-energy weapon to direct energy towards the target environment conditionally upon the possible engagement efficiency.

Abstract: Disclosed is an unmanned Aerial Vehicle, UAV, comprising a plurality of rotors, a camera and an explosive payload, wherein the UAV comprises a generally elongate body, and the camera and the payload are arranged substantially in-line within the body.

Abstract: According to a first aspect of the present invention, there is provided a reconnaissance and communication assembly, adapted to be launched from a gun barrel into the air over a body of water. The assembly comprises a carrier (with a cavity) and a payload (within the cavity). The payload is arranged to be controllably expelled from the carrier and once expelled from the carrier, the payload is adapted to enter the water; and the payload transmits a signal after entering the water.

Abstract: A vehicle surface 30, preferably wherein the vehicle is an aircraft, is described. The vehicle surface 30 comprises thereon and/or therein a set of retroreflectors 300, including a first retroreflector 300A, configured to reflect, at least in part, incident hostile light towards a source thereof.

Abstract: A vehicle control system (110) for use with at least one fluidic control effector (102) for a vehicle, the vehicle control system (110) comprising a controller (110), wherein the controller is configured to: receive a vehicle control input indicating a demanded vehicle manoeuvre, wherein the input is further configured to receive condition data; determine a fluid mass-flow for the at least one fluid control effector based on the received vehicle control input and the condition data, wherein the relationship between the fluid mass-flow and the vehicle control input is substantially non-linear; and output data relating to the determined fluid mass-flow to effect the demanded vehicle manoeuvre, wherein the fluid mass-flow is determined to provide a substantially linear relationship between the vehicle control input and the effected demanded vehicle manoeuvre.

Abstract: A folded optical arrangement for use in a view-through display to transmit an image from an image source to a user's eye, the arrangement providing a folded optical transmission path and comprising: an optical system having a first optical element comprising a first plurality of optically powered surfaces; and a second optical element comprising at least one optically powered surface, the optical system configured to receive light forming the image from an image source, and to present a virtual image of the image source to the user with an apparent focus between a predetermined distance and optical infinity; wherein the first plurality of optically powered surfaces and the at least one optically powered surface of the second optical element are arranged to define a plurality of interfaces along the folded optical path and wherein a refractive index change at each interface is predetermined to control the direction of light passing through the or each interface; and wherein one surface of the first optical ele

Abstract: There is provided a method for fabricating a waveguide master grating imprint tool. The method comprises: coating a substrate with at least one photoresist layer; selectively exposing a first diffraction grating master profile onto a first area of the at least one photoresist layer; selectively exposing a second diffraction grating master profile onto a second area of the at least one photoresist layer; and processing the substrate to form the first diffraction grating master profile and the second diffraction grating master profile.