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162 Results for 'Engineering'
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Technology
Field Controlled Axial Flux Permanent Magnet Electrical Machine
A continuing need exists for compact, efficient, inexpensive electrical machines with high torque capability over a large speed range and the ability to control machine speed. This need is particularl...
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Thomas Lipo, Metin Aydin, Surong Huang | P05379US
Technology
Microelectronics Grade Metal Substrate and Related Metal-Embedded Devices
Embedding sensors into a mass of material allows them to assess the material in a way that is not often possible with surface-mounted sensors. In addition, it is frequently necessary to embed sensors ...
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Xiaochun Li, Arindom Datta, Hongseok Choi | P05140US
Technology
High-Speed Digital-to-Analog Converter
Digital-to-analog converters (DACs) convert digital data, encoded as bits, into analog signals, such as current or voltage. For example, in devices like MP3 players and CDs, DACs convert audio signals...
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Daniel van der Weide, Kae Oh Sun | P06325US
Technology
Internal Combustion Engine Exhaust Filtration Analyzer
Internal combustion engines are a major contributor to atmospheric pollution, emitting carbon oxides, nitrogen oxides and sulfur oxides. Federally mandated emission regulations effective in 2010...
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David Foster, Ekathai Wirojsakunchai, Christopher Kolodziej, Renato Yapaulo | P08173US
Technology
Silicon Nanomembrane Thermoelectric Materials and Devices
Thermoelectric materials can turn heat into electrical power or remove heat by applying a voltage. They are used in many applications, ranging from a simple, electrically cooled ice chest, to high-tec...
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Max Lagally, Paul Evans, Clark Ritz | P06453US
Technology
Smart Leaf Technology - Floating Semiconductor Membranes for Wireless Sensing
Sensors currently used for detecting the presence of a given analyte, such as a toxin, in solution or in air require direct contact with a power supply. Distributed sensing systems or “sensor ne...
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Robert Blick, Robert Nowak | P05404US
Technology
Autonomous Control of Inverter-Based Storage in Dynamic Distribution Systems
Distributed energy resources (DER), which include small-scale, distributed power generators, energy storage devices and renewable sources of energy, are frequently located near the consumer’s &l...
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Robert Lasseter, Paolo Piagi | P07015US
Technology
Power Conditioning Architecture for Wind Turbine
Wind-powered generators are an increasing source of power for many countries. However, before their use can become widespread, they must be able to work effectively with the existing utility grid.
V...
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Venkata Giri Venkataramanan, Patrick Flannery | P06426US
Technology
Non-Inverter-Based Distributed Energy Resource for Use in a Dynamic Distribution System
Distributed energy resources (DER), the combination of distributed power generators, energy storage devices and renewable sources of energy, are frequently located at customer sites where the energy r...
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Robert Lasseter, Shashank Krishnamurthy | P07269US
Technology
Nano-Mechanical Computer Based on Nano-Electro-Mechanical Transistors
Conventional integrated circuits, such as complementary metal-oxide-semiconductor (CMOS) circuits, allow large numbers of transistors to be combined into electronic gates. These gates control the flow...
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Robert Blick, Robert Marsland | P07203US
Technology
Wear-Resistant Nanocrystalline Diamond Coating for Micro-End Mills and Other Micro-Cutting Tools
Micro-end mills are tools with tips just 10 to 500 micrometers in diameter. As part of emerging micro- and meso-scale machine tool systems, they are used for high-precision machining of miniature part...
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Anirudha Sumant, Robert Carpick, Frank Pfefferkorn, Patrick Heaney | P06146US
Technology
Metal-Coated Vertically Aligned Carbon Nanofibers
Although electrochemically active materials with high density and surface area have many potential uses in electrocatalysts, batteries, fuel cells and sensors, creating these materials can be challeng...
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Robert Hamers, Kevin Metz | P06357US