Abstract:
A modular stretcher system includes a pouch having a releasable outer cover and an inner surface, and a stretcher comprised from a lightweight sheet material and stored within the pouch, wherein the stretcher is accessible upon release of the cover, and wherein the stretcher further includes at least two integrated load-bearing system fixings that engage the lightweight sheet and extend through the inner surface. The modular stretcher system may also be incorporated within a protective anti-ballistic jacket.
Abstract:
An evaporative cooling device (40) is disclosed for cooling water or other liquids comprising a vessel (50) adapted to receive water or another liquid, said vessel comprising a vessel wall (53, 54, 55), an outer layer (90) of absorbent material and a wick (85) extending through said vessel wall, such that said wick is positioned to contact said water or other liquid within the vessel and is adapted to transport a portion of said water or other liquid through the wall by capillary action to said absorbent material, said wick being substantially impermeable to gas or vapour, so that the cooling device (40) can be connected in-line in an hydration system of the kind comprising a reservoir (12) and a drinking tube (32). Water or other liquid transported from within the vessel to the outer layer by said wick is absorbed by the absorbent material, from which it evaporates, the latent heat required for such evaporation being removed from the water or other liquid disposed within the vessel as sensible heat through the vessel wall, thereby cooling such water or other liquid. In some embodiments, the cooling device (40) may be fan-assisted. Also disclosed is a cooling garment comprising a garment portion that is adapted to be worn by a user and an evaporative cooling device (40) for cooling water or other liquids that are circulated through integrant channels or tubes provided in the garment.
Abstract:
A micro unmanned aerial vehicle or drone (“UAV”) 10 is remotely controlled through an HMI, although this remote control is supplemented by and selectively suppressed by an on-board controller. The controller operates to control the generation of a sonar bubble that generally encapsulates the UAV. The sonar bubble, which may be ultrasonic in nature, is produced by a multiplicity of sonar lobes generated by specific sonar emitters associated with each axis of movement for the UAV. The emitters produce individual and beamformed sonar lobes that partially overlap to provide stereo or bioptic data in the form of individual echo responses detected by axis-specific sonar detectors. In this way, the on-board controller is able to interpret and then generate 3-D spatial imaging of the physical environment in which the UAV is currently moving or positioned. The controller is therefore able to plot relative and absolute movement of the UAV through the 3-D space by recording measurements from on-board gyroscopes, magnetometers and accelerometers. Data from the sonar bubble can therefore both proactively prevent collisions with objects by imposing a corrective instruction to rotors and other flight control system and can also assess and compensate for sensor drift.
Abstract:
An evaporative cooling device (40) is disclosed for cooling water or other liquids comprising a vessel (50) adapted to receive water or another liquid, said vessel comprising a vessel wall (53, 54, 55), an outer layer (90) of absorbent material and a wick (85) extending through said vessel wall, such that said wick is positioned to contact said water or other liquid within the vessel and is adapted to transport a portion of said water or other liquid through the wall by capillary action to said absorbent material, said wick being substantially impermeable to gas or vapor, so that the cooling device (40) can be connected in-line in an hydration system of the kind comprising a reservoir (12) and a drinking tube (32). Water or other liquid transported from within the vessel to the outer layer by said wick is absorbed by the absorbent material, from which it evaporates, the latent heat required for such evaporation being removed from the water or other liquid disposed within the vessel as sensible heat through the vessel wall, thereby cooling such water or other liquid. In some embodiments, the cooling device (40) may be fan-assisted. Also disclosed is a cooling garment comprising a garment portion that is adapted to be worn by a user and an evaporative cooling device (40) for cooling water or other liquids that are circulated through integrant channels or tubes provided in the garment.