نتایج جستجو برای: hot temperature
تعداد نتایج: 518383 فیلتر نتایج به سال:
Many studies have focused on the impacts of climate change on biological assemblages, yet little is known about how climate interacts with other major anthropogenic influences on biodiversity, such as habitat disturbance. Using a unique global database of 1128 local ant assemblages, we examined whether climate mediates the effects of habitat disturbance on assemblage structure at a global scale...
Extreme temperature events (ETEs), both hot and cold, have received much attention in the literature because of their adverse impacts upon society, in particular human health. Under scenarios of climate change, substantial changes in the frequency and intensity of ETEs are projected. Here, we review literature from the last few years that have assessed recent changes and projected future ETEs, ...
A person working in extreme hot environment is at greater risk of heat-related disorders and safety problems. Protection of health and safety needs to evaluate the risk and warning rate of hot environment without compromising productivity of the organization. In this paper, a novel hybrid technique was proposed for assessing the work safety in hot environments using multi criteria decision maki...
This paper describes the main principles of constructing innovative MEMS flow meters for gaseous working fluids. MEMS flow meter contains hot-wire thermoanemometrisc sensor which response to the temperature change caused by convective working fluid heat transfer from a hot-wire. The advantages of using hot-wire thermoanemometric sensors were analyzed. The main emphasis of this work is on speed,...
We collected data from Kailuan cohort study from 2006 to 2011 to examine whether short-term effects of ambient temperature on heart rate (HR) and blood pressure (BP) are non-linear or linear, and their potential modifying factors. The HR, BP and individual information, including basic characteristics, life style, socio-economic characteristics and other characteristics, were collected for each ...
The hypothesized relation between uncomfortably hot temperatures and aggressive behavior was examined in two studies of violent and nonviolent crime. Data on rates of murder, rape, assault, robbery, burglary, larceny-theft, and motor vehicle theft were gathered from archival sources. The first three crimes listed are violent; the latter four are less violent (labeled nonviolent). On the basis o...
The photoexcited carrier lifetimes in ex situ-annealed low temperature growth GaAs are measured with a femtosecond transient absorption experiment. The study encompassed two low temperature growth GaAs films with approximately 0.3% and 0.9% excess arsenic incorporated during growth. The observed lifetimes are found to be a function of the spacing of arsenic precipitates formed during the 30 s a...
The relationship between precipitation deficits and extreme hot temperatures has been documented in observation and modeling studies. However, it is unclear whether and how increases in maximum temperatures will impact diurnal temperature range (DTR) extremes. Here, we used observational data sets from meteorological stations in China to examine the trends in high DTR extremes from 1971 to 2013...
We previously reported on the sporadic contamination by Legionella anisa of shower units and sink taps at Ryukyu University Hospital. Starting in July 2003, the neonatal area underwent an 8-month reconstruction, and in March 2005, the boiler system was replaced. We therefore examined shower water and tap water for the presence of Legionella just after replacement of the boiler system. In 3 of t...
A prototype based on industrial tools will be presented to analyze and optimize the lifetime yield of analog circuits, where both parameter variations from manufacture process and parameter lifetime degradations due to NBTI and HCI effects are considered [1]. A robust analog design is thus achieved tolerant of both effects.
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