نتایج جستجو برای: threshold temperature

تعداد نتایج: 568339  

2014
Becky Hothersall Gina Caplen Richard M. A. Parker Christine J. Nicol Avril E. Waterman-Pearson Claire A. Weeks Joanna C. Murrell

Lameness is common in commercially reared broiler chickens but relationships between lameness and pain (and thus bird welfare) have proved complex, partly because lameness is often partially confounded with factors such as bodyweight, sex and pathology. Thermal nociceptive threshold (TNT) testing explores the neural processing of noxious stimuli, and so can contribute to our understanding of pa...

Journal: :Optics express 2013
Ian C Sandall Jo Shien Ng Shiyu Xie Pin Jern Ker Chee Hing Tan

An Analytical Band Monte Carlo model was used to investigate the temperature dependence of impact ionization in InAs. The model produced an excellent agreement with experimental data for both avalanche gain and excess noise factors at all temperatures modeled. The gain exhibits a positive temperature dependence whilst the excess noise shows a very weak negative dependence. These dependencies we...

2011
F. Salehuddin I. Ahmad F. A. Hamid A. Zaharim

Abstrac: In this paper, we investigate the influence of process parameters like HALO and Source/Drain (S/D) Implantation on threshold voltage in 45nm PMOS device. The settings of process parameters were determined by using Taguchi experimental design method. The level of importance of the process parameters on threshold voltage was determined by using analysis of variance (ANOVA). The virtual f...

2009
Rahul Shetty Jens Kauffmann Scott Schnee Alyssa A. Goodman Barbara Ercolano

We investigate the effect of line of sight temperature variations and noise on two commonly used methods to determine dust properties from dust continuum observations of dense cores. One method employs a direct fit to a modified blackbody SED; the other involves a comparison of flux ratios to an analytical prediction. Fitting fluxes near the SED peak produces inaccurate temperature and dust spe...

2016
Matt Luther Fergus W. Gardiner Claire Hansen David Caldicott

The aim of this study was to determine whether a revised heat warning threshold provides an enhanced predictive tool for increases in Emergency Department heat-related presentations in Canberra, Australia. All Emergency Department triage records containing the word "heat", as well as those diagnosing a heat related illness for the summer periods 2013/2014, 2014/2015, and 2015/2016 were searched...

Journal: :Current Biology 2009
Benjamin P. Oldroyd

Differing task thresholds among workers are crucial to the efficient allocation of work in self-organized insect colonies. New evidence suggests that the rearing temperature of ant pupae causes lifelong changes in an ant's response threshold to temperature.

Journal: :international journal of occupational hygiene 0
farideh golbabaei department of occupational health, school of public health, tehran university of medical sciences, tehran, iran. mohammadreza monazzam department of occupational health, school of public health, tehran university of medical sciences, tehran, iran. rasoul hematjo school of public health, bushehr university of medical sciences, bushehr, iran. mostafa hosseini department of epidemiology and biostatistics, school of public health, tehran university of medical sciences, tehran, iran. somayeh fahang-dehghan department of occupational health, school of public health, tehran university of medical sciences, tehran, iran.

heat stress is well recognized among the hazardous physical agents that might be present during work. this study aims to compare wbgt index at acclimated and unacclimated people to permissible threshold limit value and study the differences between physiological parameters at them. twenty one healthy men were participated in the study. all of the subjects were monitored in two different weather...

2015
Jan-Hendrik Schleimer Janina Hesse Susanne Schreiber

Even in thermo-regulating animals, such as mammals and birds, the brain is exposed to changes in temperature that can affect neuronal processing [1]. For example, certain forms of epilepsy can be induced by elevated brain temperature [2]. Here, we analyse how temperature influences the spiking regularity of single neurons and network synchronisation. This question is motivated by two observatio...

Journal: :جغرافیا و توسعه ناحیه ای 0
ابوالفضل مسعودیان رضا ابراهیمی الهام یاراحمدی

abstract climate change and increase the temperature of the environmental importance of human behavior that is considered in recent years many studies have been devoted .objective of this study is to investigate trend and slope trend monthly of hdd with temperature threshold of 18. mean daily temperature of weather during the statistical period of 44 years (1962-2005) was provided from asfe zar...

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