نتایج جستجو برای: temperature gradients

تعداد نتایج: 485785  

Journal: :Journal of Geophysical Research: Atmospheres 1998

Journal: :Canadian Journal of Soil Science 1973

Journal: :Biophysical journal 2015
Kotaro Oyama Tomomi Arai Akira Isaka Taku Sekiguchi Hideki Itoh Yusuke Seto Makito Miyazaki Takeshi Itabashi Takashi Ohki Madoka Suzuki Shin'ichi Ishiwata

Living cells sense absolute temperature and temporal changes in temperature using biological thermosensors such as ion channels. Here, we reveal, to our knowledge, a novel mechanism of sensing spatial temperature gradients within single cells. Spherical mitotic cells form directional membrane extensions (polar blebs) under sharp temperature gradients (≥∼0.065°C μm(-1); 1.3°C temperature differe...

Journal: :Journal of magnetic resonance 2002
Nikolaus M Loening James Keeler

In solution-state NMR spectrometers, there is a systematic deviation between the temperature of the sample and the temperature reported by the spectrometer. In addition, temperature gradients are often present in the sample. The size of both the temperature deviations and the temperature gradients depends on several factors, including the temperature, the flow rate of the heating/cooling gas, a...

Thermoacoustics describes energy conversion processes, activated by interaction temperature oscillation, accompanying the pressure oscillation in a sound wave, with solid boundaries. In ordinary experience this interaction of sound and heat cannot be observed, because of the very low temperature differences, but under suitable conditions, it can be emphasized and amplified to create remarkable ...

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