Airborne | Date: 2014-10-17
A harness container for a parachutist has a bio-contoured support cradle or load distributing vest. The load distributing vest, which is generally U-shaped and includes an upper yoke and two straps integral with the yoke, has a multi-layer construction that includes an outer layer and an inner layer mounted on a bio-contoured pad. The outer layer and the inner layer are of corresponding shape and are sewn to one another along a reinforced edging with the pad therebetween. The upper yoke is attached to the front side of the harness container and the ends of the vest straps are attached to the main lift webs so that the vest elevates the harness container and distributes the load thereof across the jumpers shoulders, back and chest for increased comfort.
Airborne | Date: 2013-01-18
A zipper closure includes a first coil fixed to a first panel of an article and a second coil fixed to a second panel of the article, the second coil engagably securable to the first coil. A slide selectively engages and disengages the first coil and the second coil when a pull connected thereto is moved. A flap is fixed to the one of the panels and is releasably fixed to the other panel. A positioned on an underside of the panel is sized to receive the pull when the slider is in a first position. This holds the slider in place against forces acting on the zipper or article itself.
Airborne | Date: 2013-07-22
Methods and systems for converting an audio signal into a stream of digital audio packets are presented. An example converter device may include a receiver, a digital audio encoder, a digital audio packetizer, and a transmitter. The receiver may receive an audio signal. The digital audio encoder may encode the audio signal into a stream of digital audio values. The digital audio packetizer may generate a stream of digital audio data packets from the stream of digital audio values. Each of the digital audio data packets may include a current digital audio value and at least one previous digital audio value of the stream of digital audio values. The transmitter may transmit the stream of digital audio data packets to a receiving device.
Exploration Geophysics | Year: 2015
Numerous authors have discussed the utility of multicomponent measurements. Generally speaking, for a vertical-oriented dipole source, the measured vertical component couples to horizontal planar bodies while the horizontal in-line component couples best to vertical planar targets. For layered-earth cases, helicopter EM systems have little or no in-line component response and as a result much of the in-line signal is due to receiver coil rotation and appears as noise. In contrast to this, the in-line component of a fixed-wing airborne electromagnetic (AEM) system with large transmitter-receiver offset can be substantial, exceeding the vertical component in conductive areas. This paper compares the in-line and vertical response of a fixed-wing airborne electromagnetic (AEM) system using a half-space model and calculates sensitivity functions. The a posteriori inversion model parameter uncertainty matrix is calculated for a bathymetry model (conductive layer over more resistive half-space) for two inversion cases; use of vertical component alone is compared to joint inversion of vertical and in-line components. The joint inversion is able to better resolve model parameters. An example is then provided using field data from a bathymetry survey to compare the joint inversion to vertical component only inversion. For each inversion set, the difference between the inverted water depth and ship-measured bathymetry is calculated. The result is in general agreement with that expected from the a posteriori inversion model parameter uncertainty calculation. © ASEG 2015
Agency: Cordis | Branch: FP7 | Program: CP-IP | Phase: NMP-2009-2.5-1 | Award Amount: 7.38M | Year: 2010
The rapidly growing use of high-performance composites in high-end sectors such as aerospace, show that these materials are already commercially viable as long as production volumes are limited and applications not primarily cost-driven. In order to achieve a step-change in the application of high-performance composites in larger-volume applications, HIVOCOMP focuses on achieving radical advances in two materials systems that show unique promise for cost effective, higher-volume production of high performance carbon fibre reinforced parts. These are: 1) advanced polyurethane (PU) thermoset matrix materials offering increased mechanical performance and reduced cycle times compared to epoxy, and 2) thermoplastic PP- and PA6-based self-reinforced polymer composites incorporating continuous carbon fibre reinforcements with lower process times and far higher toughness than current thermoplastic and thermoset solutions. The project will analyse and develop these matrix materials, their combination with advanced textile preforms, and optimise material properties for advanced processing technologies, joining technologies (adhesives / welding) and the incorporation and self-diagnosis (sensing) materials. The focus on breakthrough material innovations are complemented by enabling work covering material testing, chemical and micro-mechanical modelling and simulation tool development, as well as LCA, cost and recycling analysis, and prototyping of typical applications, assuring that the proposed material innovations can be successfully translated into high-impact industrial applications. The project drives the material innovations with the road vehicle sector in mind, but has clearly identified spin-off applications in other sectors. The project foresees a step-wise implementation in future products introduced into larger-volume transport applications starting with validated demonstration parts in 2013, and so ensuring a large-scale societal impact of the innovations achieved.