Six-Stroke, High-Efficiency Quasiturbine Concept Engine
With Distinct, Thermally-Insulated
Compression and Expansion Components

George Marchetti and Gilles Saint-Hilaire


Need to increase engine thermal efficiency. This paper presents a Quasiturbine thermal management strategy in the development of high-efficiency engines for the 21st century. In the concept engine, high-octane fuels are preferred because higher engine efficiencies can be attained with these fuels. Higher efficiencies mean less fuel consumption and lower at ....etc

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Abstract

This work features the design and a control scheme for an active multi-degree of freedom kinematic pair piezoelectric robot. We introduce the piezoelectric active kinematic pair where the joints between the links are made from piezoactive material. The objective is to design an energy efficient underactuated precision micromanipulator with a fault-tolerant design where not all joints require actuators. Typical configuration of this type of piezoelectric robot is that it consists of several identical joints, i.e. kinematic pairs of t ....etc

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Design and Testing of Superconducting Microwave Passive Components for Quantum Information Processing
Abstract
We report on the design, fabrication and testing of
two superconducting passive microwave components, a quadrature
hybrid and a 20 dB directional coupler. These components
are designed to be integrated with superconducting qubits or
Josephson parametric amplifiers and used in quantum information
processing applications. For the coupler, we measure return
loss and isolation 20 dB, and insertion loss 0.3 dB in a 2 G ....etc

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thermally comfortable passive house for tropical uplands good ....etc

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Passive Magnetic Bearing: Design Becomes Reality



The collaboration between Lawrence Livermore National Laboratory ( LLNL ) and Arnold Magnetic Technologies ( Arnold ) began with a theoretical design developed by Dr. Dick Post of LLNL, and became a reality through the manufacturing expertise of Arnold. For the past several months, Arnold and LLNL collaborated on designing, building, and testing a prototype passive magnetic bearing system. The objective of the Arnold / LLNL relationship was to prove Dr. Post s ....etc

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The solar house: passive heating and cooling

ABSTRACT:

Passive solar heating and passive cooling approaches known as natural conditioning provide comfort throughout the year by reducing, or eliminating, the need for fossil fuel. Yet while heat from sunlight and ventilation from breezes is free for the taking, few modern architects or builders really understand the principles involved.
ISBN: 1931498121 ....etc

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Abstract

The fiber/matrix adhesion is most likely to control the overall mechanical behavior of fiber-reinforced composites. An interfacial reaction may result in various morphological modifications to polymer matrix microstructure in proximity to the fiber surface. The interactions between fiber and polymer matrix during thermal conditioning and thermal shock are important phenomena. Thermal stresses were built-up in glass fiber-reinforced epoxy composites by upthermal shock cycles (negative to positive temperature exposure) for different dur ....etc

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Comfortableness and quality is most important thing in shoes for walking on concrete floors.For this,now lot of brand in shoes available in the markets. ....etc

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Abstract

In many countries located close to the equator, such as India, Sri Lanka, Myanmar, Thailand, Malaysia, Indonesia, and countries in parts of Africa and South America, certain regions can be considered tropical uplands. In such regions, the cold discomfort that occurs during the night and warm discomfort that occurs during the daytime could become a problem unless houses are planned with careful consideration. It is shown using computer simulation with case-studies carried out for the climatic data pertaining to tropical uplands of Sr ....etc

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Thermal shock on interfacial adhesion of thermally conditioned Glass fiber/epoxy

The fiber/matrix adhesion is most likely to control the overall mechanical behavior of fiber-reinforced composites. An interfacial reaction may result in various morphological modifications to polymer matrix microstructure in proximity to the fiber surface. The interactions between fiber and polymer matrix during thermal conditioning and thermal shock are important phenomena.

Thermal stresses were built-up in glass fiber reinforced epoxy c ....etc

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