نتایج جستجو برای: positive temperature coefficient

تعداد نتایج: 1233903  

2011
Jun Liu Da-Chuan Yin Yun-Zhu Guo Xi-Kai Wang Si-Xiao Xie Qin-Qin Lu Yong-Ming Liu

Protein crystals usually grow at a preferable temperature which is however not known for a new protein. This paper reports a new approach for determination of favorable crystallization temperature, which can be adopted to facilitate the crystallization screening process. By taking advantage of the correlation between the temperature dependence of the second virial coefficient (B(22)) and the so...

Journal: :Journal of the Franklin Institute 1910

Journal: :The journal of physical chemistry. B 2006
Pavel Polyakov Jutta Luettmer-Strathmann Simone Wiegand

In this work the thermal diffusion behavior of binary mixtures of linear alkanes (heptane, nonane, undecane, tridecane, pentadecane, heptadecane) in benzene has been investigated by thermal diffusion forced Rayleigh scattering (TDFRS) for a range of concentrations and temperatures. The Soret coefficient ST of the alkane was found to be negative for these n-alkane/benzene mixtures indicating tha...

Journal: :The Journal of General Physiology 1940
M. Ingram

Measurements were made of the rate of consumption of oxygen by suspensions of B. cereus, in sodium chloride solutions of concentration up to 1.8 M and over a range of pH from 6.0 to 7.5. It was found: 1. That the temperature coefficient was independent of the presence of sodium chloride in concentrations between 0.2 and 1.8 M, although the rate of respiration was lowered considerably under thes...

Journal: :Revista espanola de cardiologia 2007
José M Atienza Gustavo V Guinea Francisco J Rojo Raúl J Burgos Carlos García-Montero Francisco J Goicolea Paloma Aragoncillo Manuel Elices

INTRODUCTION AND OBJECTIVES The thermomechanical behavior of human arteries is still not well characterized despite its importance for understanding arterial physiology, and for evaluating and improving surgical procedures. The aim of this study was to provide, for the first time, experimental data illustrating how the mechanical responses of two types of human artery -the carotid artery and th...

ژورنال: علوم آب و خاک 2019

The purpose of this study was to model the relationship between the frequency of dust storms and climatic variables in desert areas of Iran. For this purpose, climatic data of temperature (maximum and minimum), rainfall, wind speed (maximum and minimum), and their relationship with the number of days with dust recorded in 25 meteorological stations (statistical period since their inception unti...

Journal: :JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 1957

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