Results 261 to 270 of about 621,425 (316)
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Performance and Thermal Comfort
Ergonomics, 1971This experiment attempts to establish an objective measure of thermal comfort. A theoretical explanation of the relationship between performance and comfort is given and is represented in terms of an hypothesis. A total of 50 subjects was divided among five groups, each group experiencing one temperature in the range 15.6-26.7°C (60-80°F) for both air ...
I D, Griffiths, P R, Boyce
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Performance of Thermal Interface Materials
Small, 2022AbstractThe thermal interface materials (TIMs) used for improving thermal contacts are considered in terms of the performance, performance consideration criteria, performance evaluation methods, and material development approaches. The performance is described mainly by the thermal contact conductance, which refers to the conductance across the thermal
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Thermal Performance of Equestrian Helmets
2019The cooling performance of three equestrian helmets was investigated within this research. The helmets were evaluated for their capacity to remove convective heat loss in the scalp area with the use of a thermal manikin head with nine thermal zones. The manikin head was placed in a climate chamber with an open loop wind tunnel.
Bauwens, Merlin +4 more
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Buildings that Perform: Thermal Performance and Comfort
2018Building performance evaluation considers the whole building system from a fabric, service and occupant perspective, as well as its response to the environment and potential integration into smart cities. There are many BPE methods used to collect building data and inform designs.
Christopher Gorse +6 more
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Effect of Thermal State and Thermal Comfort on Cycling Performance in the Heat
International Journal of Sports Physiology and Performance, 2015Purpose:To determine the effect of thermal state and thermal comfort on cycling performance in the heat.Methods:Seven well-trained male triathletes completed 3 performance trials consisting of 60 min cycling at a fixed rating of perceived exertion (14) followed immediately by a 20-km time trial in hot (30°C) and humid (80% relative humidity) conditions.
Schulze, E. +7 more
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2014
On-off operation of electronic systems leads to thermal cycling, which introduces thermal and strain energy into solder joints, resulting in microstructural evolution mechanisms of recovery, recrystallization and damage nucleation. The thermal strain history is very sensitive to the package design.
Tae-Kyu Lee +3 more
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On-off operation of electronic systems leads to thermal cycling, which introduces thermal and strain energy into solder joints, resulting in microstructural evolution mechanisms of recovery, recrystallization and damage nucleation. The thermal strain history is very sensitive to the package design.
Tae-Kyu Lee +3 more
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Thermal performance of quartz capillaries for vitrification
Cryobiology, 2007In this paper we report the thermal behavior of a new approach for vitrification. Thermal performance of traditional open pulled straws is compared with a new technique based on the combined use of quartz capillaries with slush nitrogen. This new method of vitrification achieved ultrafast cooling rates of 250,000 degrees C/min.
Ramon, Risco +4 more
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Thermal Performance of Thermally Enhanced PBGA Packages
Advances in Electronic Packaging, Parts A, B, and C, 2005Enhancement of thermal performance of a PBGA (plastic ball grid array) is often accomplished by embedding metal layers in the substrate and the inclusion of a copper spreader in the mold compound. The thermal effectiveness of the substrate planes in spreading the heat is frequently compromised by the necessity to separate the various voltages on the ...
Sriram Neelakantan, Bennett Joiner
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INTEGRATED PERFORMANCE, POWER, AND THERMAL MODELING
Journal of Circuits, Systems and Computers, 2002In current microprocessor designs, power dissipation has become a first class design constraint alongside performance and total chip cost. In order to design power efficient microprocessors, it is essential for architects to estimate the power/energy consumption and study thermal effects early on in the design process.
George Cai +2 more
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Thermal Insulation Performance
1980Description Updates you on a wide variety of important topics with discussions in such critical areas as Overall performance in applications, Implementation of standard codes and accreditation procedures, Research procedures, and Needs for the future.
DL McElroy, RP Tye
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