نتایج جستجو برای: ambient temperature

تعداد نتایج: 487990  

2010
Christian Greiner Jonathan R. Felts Zhenting Dai William P. King Robert W. Carpick

Measurements of nanoscale friction between silicon AFM tips featuring an in-situ solid state heater and silicon substrates (both with native oxide) were performed. The temperature of the heater was varied between room temperature and approximately 650 °C. For these temperatures and the silicon substrate, the temperatures at the point of contact are estimated to range from room temperature to ap...

Akbar Shahsavand, Mayam Abdoli Rad

Complex heat transfer phenomena (including unsteady state conduction, convection and solidification processes) occur in steel belt conveyer sulfur granulating method. Numerical simulation of this technique is performed via a comprehensive and multifaceted one dimensional model. Since the air situated between the adjacent sulfur pastilles is essentially stagnant, therefore, the surface tempe...

2012
N. Premalatha

In this study, global solar radiation was predicted using artificial neural networks. Gradient descent back propagation with adaptive learning rate was used for training the artificial neural network. In order to train and test the neural network, meteorological day average data like maximum ambient temperature, minimum ambient temperature and minimum relative humidity values were used for pred...

2017
Meghan Haupt Nigel C Bennett Maria K Oosthuizen

African mole-rats are strictly subterranean mammals that live in extensive burrow systems. High humidity levels in the burrows prevent mole-rats from thermoregulating using evaporative cooling. However, the relatively stable environment of the burrows promotes moderate temperatures and small daily temperature fluctuations. Mole-rats therefore display a relatively wide range of thermoregulation ...

2005
Matteo Cerri

EXPOSURE TO AN AMBIENT TEMPERATURE OUTSIDE THE APPROPRIATE THERMONEUTRAL RANGE CHANGES THE AMOUNT AND DISTRIBUTION OF THE DIFFERENT stages of the wake-sleep cycle in several different species.1-3 These changes may be a consequence of the differences in the capacity to regulate body temperature across the different stages of the wake-sleep cycle.3,4 In particular, it has been shown that thermore...

Journal: :The Journal of experimental biology 2007
Jason M Blank Jeffery M Morrissette Charles J Farwell Matthew Price Robert J Schallert Barbara A Block

Pacific bluefin tuna inhabit a wide range of thermal environments across the Pacific ocean. To examine how metabolism varies across this thermal range, we studied the effect of ambient water temperature on metabolic rate of juvenile Pacific bluefin tuna, Thunnus thynnus, swimming in a swim tunnel. Rate of oxygen consumption (MO2) was measured at ambient temperatures of 8-25 degrees C and swimmi...

2003
K. P. Dowker Z. F. Ghassemlooy

The ambient index and temperature effects on the spectral profiles of two sets of long period gratings (LPGs) of different periods were investigated. The shorter period LPGs were found to be more sensitive than the longer period LPGs over identical ambient index ranges but less sensitive over identical temperature ranges. The coupling wavelength shifts due to temperature are also seen to be lin...

Journal: :Japanese Journal of Physical Fitness and Sports Medicine 1996

2016
Qin Li Yuming Guo Dong-Mei Wei Yi Song Jie-Yun Song Jun Ma Hai-Jun Wang

BACKGROUND Several studies demonstrated a short-term association between ambient temperature and blood pressure. However, few studies have assessed the long-term effect of ambient temperature on children's blood pressure. The present study aimed to investigate the association between long-term exposure to local ambient temperature and children's blood pressure in China. METHODS We analyzed th...

Journal: :Journal of analytical toxicology 2011
Ritva Karinen Elisabeth Leere Øiestad Wenche Andresen Anne Smith-Kielland Asbjørg Christophersen

The aim of this study was to evaluate the stability of stock solutions of a variety of illegal and medicinal drugs, important in forensic analysis, when stored refrigerated or at ambient temperature compared to solutions stored in a freezer. Stock solutions in methanol, acetonitrile, or a mixture of acetonitrile/methanol were transferred to autosampler vials and analyzed after storage for one ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید