نتایج جستجو برای: threshold temperature

تعداد نتایج: 568339  

Stepwise regression method (SRM) was employed in order to develop simple and accurate models for prediction of supply air temperature and pad’s pressure drop of a cellulose evaporative cooling pad system. After validation of the obtained models, influence of variation of effective performance parameters on water and electricity consumption of a cooler which supplied a specific volume of c...

Journal: :International journal of epidemiology 2007
Masahiro Hashizume Ben Armstrong Shakoor Hajat Yukiko Wagatsuma Abu S G Faruque Taiichi Hayashi David A Sack

BACKGROUND We estimated the effects of rainfall and temperature on the number of non-cholera diarrhoea cases and identified population factors potentially affecting vulnerability to the effect of the climate factors in Dhaka, Bangladesh. METHODS Weekly rainfall, temperature and number of hospital visits for non-cholera diarrhoea were analysed by time-series regression. A Poisson regression mo...

Journal: :The Journal of General Physiology 1961
Nobusada Ishiko Werner R. Loewenstein

Charge transfer through the receptor membrane of the nonmyelinated ending of Pacinian corpuscles is markedly affected by temperature. The rate of rise and the amplitude of the generator potential in response to a constant mechanical stimulus increase with temperature coefficients of 2.5 and 2.0 respectively. The duration of the falling phase, presumably a purely passive component, and the rise ...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2002
L Leuzzi F Ritort

In this paper we consider an exactly solvable model that displays glassy behavior at zero temperature due to entropic barriers. The new ingredient of the model is the existence of different energy scales or modes associated with different relaxational time scales. Low-temperature relaxation takes place by partial equilibration of successive lower-energy modes. An adiabatic scaling solution, def...

2013
Nattaphon Sakuna Rangson Muanghlua Surasak Niemcharoen

This article describes the effect of temperature on the threshold voltage, low field mobility and S/D series parasitic resistance of PMOS over operating temperature range of 27 C to 125 C. The relation of IDS and VGS in a linear region was used with a different of channel length at a fixed value of channel width that effect of the channel width is excluded. The extraction procedure is based on ...

Journal: :Physical review letters 2010
E G Highcock M Barnes A A Schekochihin F I Parra C M Roach S C Cowley

The effect of flow shear on turbulent transport in tokamaks is studied numerically in the experimentally relevant limit of zero magnetic shear. It is found that the plasma is linearly stable for all nonzero flow shear values, but that subcritical turbulence can be sustained nonlinearly at a wide range of temperature gradients. Flow shear increases the nonlinear temperature gradient threshold fo...

2003
L. J. MULLINS

Squid axons impaled with a microelectrode have been treated with concentrations of xylene and benzene such that there is no change in threshold or resting potential at 20°C., while the spike height declines about 10 inv. A decrease in ambient temperature results in large, reversible, increases in threshold. While neither low temperature nor the added blocking agent induces repetitive firing fro...

Journal: :Environmental pollution 2011
Weiwei Yu Kerrie Mengersen Wenbiao Hu Yuming Guo Xiaochuan Pan Shilu Tong

Although interests in assessing the relationship between temperature and mortality have arisen due to climate change, relatively few data are available on lag structure of temperature-mortality relationship, particularly in the Southern Hemisphere. This study identified the lag effects of mean temperature on mortality among age groups and death categories using polynomial distributed lag models...

Journal: :The Journal of General Physiology 1958
R. A. Sjodin L. J. Mullins

Squid axons impaled with a microelectrode have been treated with concentrations of xylene and benzene such that there is no change in threshold or resting potential at 20 degrees C., while the spike height declines about 10 mv. A decrease in ambient temperature results in large, reversible, increases in threshold. While neither low temperature nor the added blocking agent induces repetitive fir...

Journal: :American journal of physiology. Regulatory, integrative and comparative physiology 2001
P W Burgoon J A Boulant

The hypothalamic suprachiasmatic nucleus (SCN) contains a heterogeneous population of neurons, some of which are temperature sensitive in their firing rate activity. Neuronal thermosensitivity may provide cues that synchronize the circadian clock. In addition, through synaptic inhibition on nearby cells, thermosensitive neurons may provide temperature compensation to other SCN neurons, enabling...

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