نتایج جستجو برای: thermal stress
تعداد نتایج: 644216 فیلتر نتایج به سال:
Thermal stress and predation risk have profound effects on rocky shore organisms, triggering changes in their feeding behaviour, morphology and metabolism. Studies of thermal stress have shown that underpinning such changes in several intertidal species are specific shifts in gene and protein expression (e.g. upregulation of heat-shock proteins). But relatively few studies have examined genetic...
Thermal stress including temperature gradients in time and space, as well as thermal cycling, influences lifetime reliability and performance of modern Multiprocessor Systemson-Chip (MPSoCs). Conventional power and temperature management techniques considering the peak temperature/power consumption do not provide a comprehensive solution to avoid high spatial and temporal thermal variations. Th...
deposite the different criticisms on contrastive analysis it has been proved that the results of it(when processed)can be usuful in a tefl environment,specially at the level of phonology.this study is an attempt to compare and contrast the sound systems of kurdish and english for pedagogical aims. the consonants,vowels,stress and intonation of the twolanguages are described by the same model-ta...
Phase-change materials (PCM) can be used to reduce thermal stress and improve thermal comfort for workers wearing protective clothing. The aim of this study was to investigate the effect of PCM in protective clothing used in simulated work situations. We hypothesized that it would be possible to optimize cooling performance with a design that focuses on careful positioning of PCM, minimizing to...
in this project, some new polyaspartimides, (pas)s, have been synthesized form michael addition reaction between new synthetic bismaleimide (bmi) and some aromatic diamines. a characteristic property of this polyaspartimides is a pendent carboxylic group, which introduced to these polymers from new bismaleimide. bismaleimides (bmi) is one of the interesting compounds, which can be self-polymeri...
Thermal stress has been considered to be among the most important determinants of organismal distribution in the rocky intertidal zone. Yet our understanding of how body temperatures experienced under field conditions vary in space and time, and of how these temperatures translate into physiological performance, is still rudimentary. We continuously monitored temperatures at a site in central C...
Poultry are exposed to a number of concurrent stressors during transportation. It is proposed that thermal challenges (both elevated thermal loads and cold stress) constitute the main threat to the birds’ welfare and survival. The effects of thermal stress may be exacerbated by extended withdrawal of food or water and by exposure to vibrations and accelerations. Existing pathologies and injurie...
Article history: Received 23 May 2015 Accepted 16 June 2015 Available online xxxx Weperformed thermal and constant voltage stress on oligothiophene-based p-type organic thin-film-transistors. The devices subjected to thermal stress without bias showed limited variations. The bias stress performed at 20 °C inducedmonotonic charge trapping, andmobility degradation. The devices subjected to simult...
The thermal conduction of suspended few-layer h-BN sheets was experimentally investigated using a noncontact micro-Raman spectroscopy method. The first-order temperature coefficients for 1L, 2L and 9L h-BN sheets were measured to be – (3.41 ± 0.12) × 10-2, – (3.15 ± 0.14) × 10-2 and – (3.78 ± 0.16) × 10-2 cm-1/K, respectively. The room-temperature thermal conductivity of few-layer h-BN sheets w...
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