نتایج جستجو برای: temperature difference

تعداد نتایج: 853317  

Journal: :International Journal of Refrigeration-revue Internationale Du Froid 2023

Owing to its high efficiency and specific refrigeration power, elastocaloric is a promising technology that potentially endowed with replacing the conventional steam compression refrigeration. Here, experimental results on cooling process of natural rubber are presented, achieving maximum temperature drop during unloading 41.30 K difference 68 between hot cold ends at an ambient 253.13 K. Moreo...

Journal: :Sensors and Actuators A-physical 2022

We present new microTEGs based on doped Bi2Te3 thin films deposited polyimide membrane able to operate under a temperature difference as high 280 K. developed two with different designs obtain the lowest internal resistance possible. The thermoelectrical properties coupled low contact lead an open circuit voltage of 64 mV and maximum output power 36 µW 206 Such cannot be in bulk commercial TEG ...

2006
Petr Chylek S. Robinson M. K. Dubey M. D. King Q. Fu W. B. Clodius

[1] We compare the results of the cloud thermodynamic phase detections that use (1) the ratio of the near-infrared and visible bands or (2) the brightness temperature difference of two thermal infrared bands. We find that the brightness temperature difference algorithm using the Moderate Resolution Imaging Spectroradiometer (MODIS) bands is generally consistent with the expectations based on th...

2011
M. Benedini

Mathematical models for water quality problems in rivers and streams are now an efficient tool in water resources management. Their basic principle is the differential equation of pollution transport, which can be integrated both in analytical and numerical form. From this equation the broad category of “fickian” models has been developed. The numerical procedures available so far are the finit...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد شاهرود - دانشکده علوم انسانی 1393

the present study was conducted to investigate the role of summary in teaching grammar process on pre-university students. to this end, 48 male pre-university students in semnan were participants. they were math class that we called experimental group and science class as control group. in order to make sure there was no significant difference in proficiency level of two groups. a pre-test wa...

Journal: :international journal of nanoscience and nanotechnology(ijnn 0
m. salehian faculty of physics and energy engineering, amirkabir university of technology, tehran, islamic republic of iran a. mohammadian department of physics, tehran central branch, islamic azad university, tehran, islamic republic of iran m. vaezzadeh department of solid state physics, faculty of physics, k. n. toosi university of technology, tehran, islamic republic of iran m. saeidi department of physics, faculty of basic sciences, shahed university, tehran, islamic republic of iran

in this paper, the effect of size on melting temperature of metallic nanoparticles (au, pb and bi) is theoretically simulated and explained. in this regard, the cause of difference in various experimental data is introduced, which is the difference between nanoparticles’ grain gaussian distribution. this volume-depended model with the help of the gaussian distribution can describe the relation ...

2017
Kevin Matthew Smith Kevin M. Smith Kevin Smith Katherine Hertlein

.............................................................................................................................................. III ACKNOWLEDGMENTS ......................................................................................................................... IV CHAPTER 1 INTRODUCTION .......................................................................

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید