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We propose to research, design, and develop a boundary representation based topological representation model for 3D GIS. The representation model provides a theoretically sound foundation for intra-relation 3D GIS query. The intra-relation includes all encoded topological relationships except disjoint. Also, Octree-based spatial index, Polyhedron approximation based inter-relation GIS query fil ...

This proposal outlines a program to develop a new lightweight troop seat that will weigh significantly less than those now in use. The concept uses both innovative design features as well as advanced materials to achieve this goal. The seat will provide superior crashworthiness to those now in use while maintaining or exceeding the comfort levels, operational convenience, and reliability now ach ...

In 1996 Shell Chemical discovered a set of tough copolymers of CBDO monomer. These materials have Tg¡s to 205¢XC and notched Izod impact strengths over 1000 Joules/meter (Lexan: 128 J/m). CBDO copolymers are optically transparent, with a yellowing index less than Lexan. It is the impact strength of these materials that make them uniquely suited to use in transparent armor, and that will allow ...

Glucose and Lactic Acid are the metabolic markers of choice for health status measurements. Determination of lactic acid threshold in soldiers and athletes during times of extensive muscle use can lead to improved training resulting in higher performance. Intensive monitoring of blood glucose is the most important step diabetics can take to safeguard their health and longevity. In the United Sta ...

For Phase II, Lynntech proposes to implement the adhesively bonded stack technology developed in Phase I in a full-size, closed-loop, regenerative fuel cell energy storage system (ESS). The ESS will be capable of delivering 34 kW of peak power and will demonstrate a roundtrip efficiency of up to 60%! The ESS will include the use of efficient balance-of-plant components, and components necessary fo ...

High-temperature polymer matrix composite (HTPMC) components for gas turbine engines have significant advantages over the currently used metal components, including weight savings, strength improvements, lower part counts, and reduced manufacturing costs. However, HTPMCs have a critical need for developing an improved metallic bond coat with a highly erosion resistant top coat before they can be w ...

In this Phase I STTR program, Advanced Ceramics Research Inc. (ACR) and its university partner successfully developed and optimized a novel, low-cost, micro/milli-channel heat exchanger system for high power electronic applications for the Navy and other DoD applications. ACR used the extrusion freeform fabrication process to create the novel heat exchange structures. The samples were tested in si ...

Solid lithium-ion conductive electrolytes offer great promise to the development of low cost, long life, safe lithium based batteries. Such solid electrolyte must have an ionic conductivity greater than 10-3 S/cm, lithium-ion transference number close to unity and stability up to 5 V. The present conventional solid polymer electrolytes are well short of meeting these requirements. A novel solid ...

Base deficit is a useful guide for fluid resuscitation of trauma patients and can be used for early identification of patients at high risk for shock related complications. The military has identified the value of determining based deficit in the field which would greatly improve the care of injured soldiers, particularly those with unrecognized or compensated shock and would also allow the more ...

Base deficit is a useful guide for fluid resuscitation of trauma patients and can be used for early identification of patients at high risk for shock related complications. The military has identified the value of determining based deficit in the field which would greatly improve the care of injured soldiers, particularly those with unrecognized or compensated shock and would also allow the more ...