نتایج جستجو برای: maximum temperature

تعداد نتایج: 719791  

2009
R. A. Akmaev F. Wu T. J. Fuller-Rowell H. Wang

[1] Discovered almost four decades ago, the midnight temperature maximum (MTM) with typical magnitudes of 50–100 K has been regularly observed by satellite and ground-based instruments in the tropical upper thermosphere. Although several mechanisms have been suggested to explain the phenomenon, previous attempts to reproduce it with comprehensive thermosphere-ionosphere models have been unsucce...

2014
Han Li Xinwei Deng Dong-Yun Kim Eric P. Smith

Relationships between stream water and air temperatures are often modeled using linear or nonlinear regression methods. Despite a strong relationship between water and air temperatures and a variety of models that are effective for data summarized on a weekly basis, such models did not yield consistently good predictions for summaries such as daily maximum temperature. A good predictive model f...

2002
Dáithı́ A. Stone Andrew J. Weaver

[1] The recent observed global warming trend over land has been characterised by a faster warming at night, leading to a considerable decrease in the diurnal temperature range (DTR). Analysis of simulations of a climate model including observed increases in greenhouse gases and sulphate aerosols reveals a similar trend in the DTR of 0.2 C per century, albeit of smaller magnitude than the observ...

2001
A F Borghesani

We report measurements of excess electron mobility in dense Argon gas at the two temperatures T = 152.15 and 162.30 K, fairly close to the critical one (Tc = 150.7 K), as a function of the gas density N up to 14 atoms·nm−3 (Nc = 8.08 atoms·nm−3). For the first time a maximum of the zero-field density-normalized mobility μ0N has been observed at the same density where it was detected in liquid A...

In this article effects of friction stir welding (FSW) tool rotational and traverse speeds were studied on heat generation and temperature distribution in welding zone of AA1100 aluminum alloy and A441 AISI joint. Computational fluid dynamics method was used to simulate the process with commercial CFD Fluent 6.4 package. To enhance the accuracy of simulation in this Study, the welding line that...

Journal: :J. Low Power Electronics 2007
Yongkui Han Israel Koren

Power density of microprocessors is increasing with every new process generation resulting in higher maximum chip temperatures. The high temperature of the chip greatly affects its reliability, raises the leakage power consumed to unprecedented levels, and makes cooling solutions significantly more expensive. The maximum temperature of a block in a chip depends not only on its own power density...

Journal: :Transactions of the American Institute of Electrical Engineers 1921

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