نتایج جستجو برای: heat capacity of activation

تعداد نتایج: 21233602  

دهقانی, وحید, محمدی, پریوش, مهمان‌دوست خواجه‌داد, علی‌اکبر,

In this paper, formulation of Modified Ginsberg – Landau theory of second grade phase transitions has been expressed. Using this theory, termodynamic properties, such as heat capacity, energy, entropy and order parameters ofandnuclei has been investigated. In the heat capacity curve, calculated according to tempreture, a smooth peak is observed which is assumed to be a signature of transition f...

Journal: :The Journal of biological chemistry 1979
J J Sando N D Hammond C A Stratford W B Pratt

The specific glucocorticoid binding capacity in cytosol preparations of rat thymocytes decays with a half-life of 4 h at 0 degrees C or 20 min at 25 degrees C. Phosphatase inhibitors (molybdate, fluoride, glucose 1-phosphate) added alone do not prevent this inactivation. Dithiothreitol (2 mM) has a large stabilizing effect on the binding capacity at 0 degrees C but only a small effect at 25 deg...

B. Khoshnevisan F. Kanjouri H. Tashakori Z. S. Naghavi

In this paper, we have used density functional perturbation theory (DFPT) and Pseudo-potential method to calculate the phonon spectrum, phonon density of states (DOS), specific heat capacity and mechanical properties of (5,5) armchair and (9,0) zigzag Single Wall Carbon Nanotubes (SWCNTs). Our calculations show that Young’s modulusfor (5,5) and (9,0) nanotubesare higher than 1TPa. We have also ...

2012
Hai-Dong Yu Xiao-Fei Yang Si-Ting Chen Yu-Ting Wang Ji-Kai Li Qi Shen Xun-Liang Liu Fang-Qing Guo

Heat stress commonly leads to inhibition of photosynthesis in higher plants. The transcriptional induction of heat stress-responsive genes represents the first line of inducible defense against imbalances in cellular homeostasis. Although heat stress transcription factor HsfA2 and its downstream target genes are well studied, the regulatory mechanisms by which HsfA2 is activated in response to ...

Journal: :international journal of nanoscience and nanotechnology 2014
h. tashakori b. khoshnevisan f. kanjouri z. s. naghavi

in this paper, we have used density functional perturbation theory (dfpt) and pseudo-potential method to calculate the phonon spectrum, phonon density of states (dos), specific heat capacity and mechanical properties of (5,5) armchair and (9,0) zigzag single wall carbon nanotubes (swcnts). our calculations show that young’s modulusfor (5,5) and (9,0) nanotubesare higher than 1tpa. we have also ...

Babak Ghaem Panah Hassan Shokouhmand Mohammad Ali Nazari Mohammad Reza Aligoodarzi

In this paper the effect of site conditions, which are Altitude, Temperature and Relative Humidity and also Heat Dissipation Capacity are investigated on the optimized design of natural draft dry cooling towers with specific kind of heat exchangers, known as Forgo T60 type. A genetic algorithm program has been developed for optimized design of these cooling towers. Objective function includes b...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده ادبیات و زبانهای خارجی 1391

building on previous studies on intellectual features and learners’ grammar learning, the present study aimed at investigating whether intelligence criterion had any impact on efl learners’ english grammar learning across two intelligence levels. in the current study, the participants were divided into two experimental and control groups by administration of raven i.q. test. this led to the for...

Journal: :نشریه دانشکده فنی 0
حسین شکوهمند دانشگاه تهران محمدعلی نظری دانشگاه تهران بابک قائم پناه دانشگاه تهران محمدرضا علیگودرز دانشگاه شهید رجائی

in this paper the effect of site conditions, which are altitude, temperature and relative humidity and also heat dissipation capacity are investigated on the optimized design of natural draft dry cooling towers with specific kind of heat exchangers, known as forgo t60 type. a genetic algorithm program has been developed for optimized design of these cooling towers. objective function includes b...

Journal: :international journal of nanoscience and nanotechnology 2007
a. amrollahi a. a. hamidi a. m. rashidi

in this investigation the silicate nano structure of mcm-41 has been used for the production of nanofluid.the particles have negligible heat conductivity and therefore by their dispersion in a base fluid likewater, it is possible to study the increase of heat conductivity due to the brownian motion effects. in thiswork a suitable apparatus for the measurement of heat conductivity has been built...

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