Abstract: A simultaneous ohmic contact to silicon carbide includes a mixture of platinum, titanium, and silicon compounds deposited on a silicon carbide substrate. The silicon carbide substrate includes an n-type surface and a p-type surface.

Abstract: A modular Unmanned Aerial System (UAS) includes an Unmanned Aerial Vehicle (UAV) parent module and UAV child modules. A main wing extends from a respective fuselage of the modules. The UAS includes docking mechanisms coupled to wingtips of the main wings. The child modules dock with the wingtips of the parent or an adjacent child module. Docking forms a linked-flight configuration, with undocking and separation from the parent or adjacent child module achieving an independent-flight configuration. The modules have booms arranged transverse to the main wings and parallel to the longitudinal axis, as well as front and rear rotors/propellers. The front and rear propellers have axes of rotation that are normal to a plane of the longitudinal axis in a vertical takeoff and landing (VTOL) configuration, with the axis of rotation of the rear propellers parallel to the longitudinal axis in a forward-flight configuration.

Abstract: A machine (21) for mixing and applying continuously a bi-component sealing material formed by mixing a base and a hardener in a pre-established ratio that is used, for example, in joining areas of structural elements of aircraft structures. Their metering chambers (25, 25?) are configured with a volumetric ratio between them adapted to the volumetric ratio of mixture of the base and the hardener and the pushing device (31) comprises means for actuating the pistons (33, 33?) allowing different displacement speeds and control means so that the outflow of said metering chambers (25, 25?) is that required for the base and hardener can reach the mixing head (43) in a pre-established weight ratio.

Abstract: Described herein is a satellite communications system that includes: two or more satellites using laser communications, and a communications relay aircraft adapted for flying at altitudes above clouds. The communications relay aircraft includes: a laser communications module to communicate with the satellite using laser communication and a Radio Frequency (RF) communications module to communicate with RF equipment at or near ground level using cloud-penetrating RF communications. The RF communications module is configured to take data received as laser communication and generate a corresponding RF transmission containing the data. The laser communications module is configured to take data received as RF communication and to generate a corresponding laser transmission containing the data.

Abstract: A hybrid processor system for use on board a telecommunications multi-beam satellite is provided that is controllable by a network control centre via one or more control channels. The system links to ground terminals by: providing uplink and downlink traffic channels on several satellite beams; routing atomic switched information blocks from the uplink traffic channels to the downlink traffic channels; and exchanging signaling data with the ground terminals on one or more uplink signaling channels and one or more downlink signaling channels. The atomic switched information blocks have the same given time duration and the same given baseband bandwidth.

Abstract: Disclosed is a robot for use in acquiring high resolution imaging data. The robot is particularly suited to acquire images indoors—for example in a retail or warehouse premises. Acquired images may be analyzed to identify inventory and the like. The robot includes a conveyance for moving the robot along a path. The robot captures, using a line scan camera, a series of images of objects along the path as the robot moves. A controller controls the locomotion of the robot and the acquisition of individual images through the camera. Each individual acquired image of the series of images has at least one vertical line of pixels. The series of images may be combined to create a combined image having an expanded resolution. The number of pixels per linear unit of movement may be controlled by the controller, in dependence on the speed of motion of the robot.

Abstract: Forecasting the likelihood of an earthquake comprises: determining a gas migration rate using measurements collected from measurement device(s). The measurement devices may be measuring changes in radon gas intensity. If the gas migration rate increases at greater than a first rate, determining a latent heat energy release rate; if the latent heat energy release rate increases at greater than a second rate, look for at least one transient outgoing long wave radiation (OLR) anomaly using measurements collected from remote sensing atmospheric thermodynamic measurement(s); if the transient outgoing long wave radiation (OLR) anomaly has been observed, look for at least one ionospheric anomaly using measurements collected from ionosphere measurement device(s); and if the at least one ionospheric anomaly has been observed, forecasting that an earthquake is likely to occur within one to four days from the observation of the at least one ionospheric anomaly.

Abstract: A spacecraft includes a first deployable module and a second deployable module and is reconfigurable from a launch configuration to an on-orbit configuration. In the launch configuration, the first deployable module is adjacent to the second deployable module. The first deployable module includes a first solar array, the first solar array being rotatable, in the on-orbit configuration, about a first axis of rotation, and the second deployable module includes a second solar array, the second solar array being rotatable, in the on-orbit configuration, about a second axis of rotation, the second axis of rotation being separated by a substantial distance from the second axis of rotation.

Abstract: An imaging spectrometer receives a beam of light from a slit and outputs the beam of light to a focal plane. The output beam of light at the focal plane is dispersed in accordance with a spectral composition of the beam of light received from the slit. The imaging spectrometer comprises first to fourth curved reflective portions. The first to fourth curved reflective portions are arranged so that the beam of light, in its passage from the slit to the focal plane, sequentially strikes the first to fourth curved reflective portions and is reflected by the first to fourth curved reflective portions. Further, the first to fourth curved reflective portions are alternatingly concave or convex, respectively, along the passage of the beam of light. At least one of the first to fourth curved reflective portions has a reflective grating structure. Further disclosed is a method of manufacturing such imaging spectrometer.

Abstract: A method and device enable the linear separation of two elements attached to each other through two connecting plates of the first element and the second element respectively. An arrangement connecting and separating the two connecting plates are mixed and comprise a layer. The connecting arrangement comprises soldering, glue, or resin, whereas the separating arrangement comprises thermite. These elements can also be layered rather than mixed. An electrical triggering of this assembly causes its quick and local warming-up and thus enables both of these elements to be separated.

Abstract: A foldable cot including a base attached to a first end and a second end and side-bars connected between the first and second ends above opposite sides of the base, with the first side-bar 0 positioned further from the base than the second side-bar, and the side-bars hinged such that they may fold toward one another, and the base hinged so that it may fold towards the first and second side-bars, such that folding of the base causes folding of the side-bars, with the cot moveable between a first configuration in which the base, first, and second side-bars are substantially un-folded, into a second configuration in which the base is folded in the direction of the first and second side-bars, the first and second side-bars are folded such that the first side-bar folds above the second side-bar, and the first and second ends are brought together with the folded base and the folded first and second side-bars between them.

Abstract: A process for mitigating or proactively avoiding an aircraft engine icing event may include detecting ice crystals in the atmosphere using one or more sensors on board an aircraft in real time. The process may also include modulating one or more engine operating conditions to proactively change an ice accretion location, to avoid the occurrence of an icing event. The process may further include implementing one or more modulated engine operating conditions in engine controls software, hardware, or both.

Abstract: A welding method for connecting at least two workpieces at a connection region by means of friction stir welding using a welding tool having a probe and a shoulder. The method includes rotating the probe around a rotation axis, wherein the connection region is softened by friction heat provided by the probe during said friction stir welding to form a welded seam at the connection region. The method also includes molding, simultaneously with forming the welded seam, at least one of a bevel, a rounding and a chamfer on an edge of the connection region using the shoulder, wherein the shoulder is configured to separate the connection region from the surroundings.

Abstract: A system and method for determining a change in a thickness and temperature of a surface of a material are disclosed herein. The system and the method are usable in a thermal protection system of a space vehicle, such as an aeroshell of a space vehicle. The system and method may incorporate micro electric sensors arranged in a ladder network and capacitor strip sensors. Corrosion or ablation causes a change in an electrical property of the sensors. An amount of or rate of the corrosion or the ablation and a temperature of the material is determined based on the change of the electrical property of the sensors.

Abstract: Architecture is described for implementing digital signal processors, defined by a plurality of physically distinct processing modules connected by high speed digital interconnections in which a first plurality of first modules have a plurality of analog or digital signal inputs and arranged to perform a first set of digital processing functions and produce a first plurality of digital interconnection outputs, a second plurality of second modules are arranged to receive the first plurality of digital interconnection outputs and perform a second set of digital processing functions and produce a second plurality of digital interconnection outputs, and a third plurality of third modules are arranged to receive the second plurality of digital interconnection outputs and perform a third set of digital processing functions and produce a plurality of analog or digital signal outputs, wherein the architecture is scalable by selection of the number of first modules, the number of second modules and the number of third

Abstract: A cusped-field thruster for a space system, wherein the cusped-field thruster comprises: at least two substantially annular permanent magnets arranged in an antipolar manner, wherein a magnetic pole piece is formed between the permanent magnets, and an anode, which comprises a permanent-magnetic material. The cusped-field thruster is configured such that a cusp is formed in a region adjacent to the anode of the cusped-field thruster.

Abstract: A welding method for producing an integral bond of fiber-reinforced plastics parts includes a welding head penetrating one of the plastics parts. The method includes reinforcing at least a first plastics part by a plurality of directional fibers. The re-inforcing fibers reorient themselves within the connection region without severing or breaking.

Abstract: A radiator comprising at least one heat conductive layer having an in-plane heat conductivity of at least 500 W/mK and at least one heat emission layer in contact with the heat conductive layer, wherein the emission layer has an exposed surface with an emissivity of at least 0.7. Preferably, the heat conductive layer comprises a carbon-based material. The radiator is to be used in combination with a space vehicle structure, and due to its flexible character may be conformed to the particular shapes of such structure.

Abstract: To provide a simple seat fastening device with enhanced flexibility and the possibility of an easy movement of vehicle seats, a seat fastening device for fastening vehicle seats in a vehicle is provided comprising a seat track and a slider in a sliding engagement with the seat track. The slider includes a seat fixation element to fix a foot of a vehicle seat, wherein the seat track includes a C-shaped profile and the slider includes a base inserted in the C-shaped profile and wherein the slider includes a clamp to clamp the slider against an inner surface of the C-shaped profile. At least one linear roller contact bearing is located between the C-shaped profile and the slider.

Abstract: A heat sink includes a core body. The core body defines a coolant plenum, sealed first and second chambers, and first and second coolant conduits. The sealed first and second chambers each house a phase change material. The first and second coolant conduits are separated from one another by the coolant plenum and are in fluid communication with the coolant plenum for transferring heat between coolant flowing through the core body and the phase change material.