Abstract:Investment castings have well served both the military and commercial markets in such areas as waveguides and splitters for microwave applications, and for connectors, housings, heat sinks and mechanical parts for electronics, optical, instrumentation, and medical devices. Tomorrow's higher RF… more
Abstract:40642 November 12, 1996
American Magnetics, Inc.
High temperature superconducting (HTS) current leads are important to products such as magnetic resonance imaging systems where they are used to minimize heat loads. However, the leads have virtually… more
Abstract:Near-field frequency domain meaasurements of antennas over a planar aperture are commonly used to obtain far-field patterns. This technique has now bben formulation in the time domain, which is very desirable for short pulse signals. An additional benefit, particularly significant for… more
Abstract:The fuel cell power supplies of today are two times too heavy compared to man-portable power supplies. A major portion of the weight is in the fuel cell stack, a stack of carbon electrodes with metal bipolar plate separators that are sandwiched between two end plates and held in place by tie rods. … more
Abstract:To Operate effectively, PEM small fuel cells stacks need a chemical hydride hydrogen generator. The chemical hydride digital reactor suggested in the proposed program will provide about 2.5 kWH of energy in a5 pound package.--almost three times the energy density of a BA5590 battery. … more
Abstract:A novel combination of techniques is proposed as a mass detector for biological compounds.A quadruple ion trap is used as a storage device for ions introduced from an Electrospray ionizationsource, thereby providing 100% duty cycle, while a reflection time-of-flight mass spectrometer is usedfor the… more
Abstract:The successful development of a scuba mouthpiece based oral bone conduction hearing device will revolutionize underwater hearing. Clear, binaural hearing in an aqueous environment, without the need for headgear or ear proximity air gap sound transmission is a tremendous advantage to divers who wish… more
Abstract:A Cartesian, multigrid, Euler solver is investigated for development as a module suitable for the multidisciplinary design optimization (MDO) environment. The ultimate objective is not to improve the Euler solver (it is already a mature code) but rather to augment or replace the linear panel method… more
Abstract:Proposed is the technical development and design of the electronics and cooling systems for a 1 megawatt cryogenically cooled inverter suitable for use in a wide range of applications, including Uninterruptable Power Suplies (UPS) and motors in the +1000 HP range. The proposed work will provide a… more
Abstract:Demonstration of a cryogenically cooled electronic power converter/inverter exhibiting a throughput power of at least 50 kW is proposed. The demonstration topology may be utilized as a variable amplitude variable frequency dc-to-ac inverter, or as a polyphase ac-to-dc rectifier. Operation… more
American Superconductor Corporation
Many applications of high temperature superconductors (HTS) involve conductor performance in time-varying magnetic fields. Such environments require very stringent AC loss requirements for a commercially viable product. Available parameters for AC loss… more
Abstract:Platinum additions are currently used to enhance the effectivenss of nickel-aluminide coatings under severe service conditions. This study will determine the feasibility of new, less expensive alternatives. Nickel-aluminide coatings protect hot turbine engine parts from the effects of oxidation and… more
Abstract:Amer Ind, Inc. proposes to fulfill the requirements of DARPA SB962-058, Synchronous Collaboration Glueware, Tools, and Metrics, with a comprehensive approach that focuses on the implementation of synchronous editing of documents with embedded objects, including multimedia objects by: transparently… more
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