نتایج جستجو برای: isothermal temperature

تعداد نتایج: 463805  

2002
P. H. Chavanis

We discuss the statistical mechanics of rotating self-gravitating systems by allowing properly for the conservation of angular momentum. We study analytically the case of slowly rotating isothermal spheres by expanding the solutions of the Boltzmann-Poisson equation in a series of Legendre polynomials, adapting the procedure introduced by Chandrasekhar (1933) for distorted polytropes. We show h...

2017
Yanbing Guo Chengwu Yao Kai Feng Zhuguo Li Paul K. Chu Yixiong Wu

The growth and propagation behavior of austenite-to-bainite isothermal transformation in laser-cladded, Si-rich, and Fe-based coatings is investigated. The crystallographic features, orientation relationship at different isothermal temperatures, and the morphology of the nanostructured bainite are determined. The Nishiyama-Wassermann type orientation relationship is observed at a high temperatu...

2011
Mohd Nasir Mohd Abdul Majeed Khan Mushahid Husain Mohammad Zulfequar

The crystallization process in Se100–xZnx glassy system is investigated using differential scanning calorimeters (DSC). The samples are prepared by conventional melt-quenching technique in the composition range 2 ≤ x ≤ 20 (at%). Nonisothermal measurements are carried out for different heating rates .The value of the glass transition temperature Tg the crystallization temperature Tc and the crys...

Journal: :Methods in enzymology 2009
Andrew L Feig

Isothermal Titration Calorimetry (ITC) provides a sensitive and accurate means by which to study the thermodynamics of RNA folding, RNA binding to small molecules, and RNA-protein interactions. The advent of extremely sensitive instrumentation and the increasing availability of ITC in shared facilities have made it increasingly valuable as a tool for RNA biochemistry. As an isothermal measureme...

2001
Peter van der Heijden Carolien van der Heijden

Concentrated polymer solutions showing an Upper Critical Solution Temperature behavior are studied with respect to liquid-liquid demixing after a temperature quench. Models proposed in literature are compared and critically evaluated. These models describe the kinetics of liquid-liquid demixing accurately only in a limited region of quench depths. Growth of liquid-liquid demixed domains shows a...

2009
Sheng-An Yang

This paper aims to perform the second law analysis of thermodynamics on the laminar film condensation of pure saturated vapor flowing in the direction of gravity on an ellipsoid with variable wall temperature. The analysis provides us understanding how the geometric parameterellipticity and non-isothermal wall temperature variation amplitude “A.” affect entropy generation during film-wise conde...

1992
Frank E. Jones Georgia L. Harris

A new formulation of the density of air-saturated water as a function of temperature on the 1990 International Temperature Scale (ITS-90) is presented. Also, a new equation for calculating isothermal compressibility as a function of temperature on ITS-90 was developed. The equations are to be used to calculate the density of water, in the temperature range 5 to 40 °C on ITS-90, used in the grav...

Journal: :Molecules 2013
Xia Zhang Lin Li He Xie Zhili Liang Jianyu Su Guoqin Liu Bing Li

Thermal behavior of palm stearin (PS) and palm olein (PO) was explored by monitoring peak temperature transitions by differential scanning calorimetry (DSC). The fatty acid composition (FAC), isothermal crystallization kinetics studied by pulsed Nuclear Magnetic Resonance (pNMR) and isothermal microstructure were also compared. The results indicated that the fatty acid composition had an import...

Journal: :IEEE Trans. Geoscience and Remote Sensing 2001
Edward F. Collins Dar A. Roberts Christoph Borel-Donohue

At-sensor thermal infrared (TIR) radiation varies depending on the temperature and emissivity of surface materials and the modifying impact of atmospheric absorption and emission. TIR imaging spectrometry often involves extracting temperature, emissivity, and/or surface composition, which are useful in diverse studies ranging from climatology to land use analyses. A two-stage application of tem...

Journal: :international journal of industrial mathematics 0
m. abd el-aziz king khaled university, faculty of science, mathematics department, abha 9004, saudi ‎arabia‎‎. department of mathematics, faculty of science, helwan university, cairo, egypt p. o. box 1179‎5‎‎‎.

the effect of partial slip and temperature dependent fluid properties on the mhd mixed convection flow from a heated, non-linearly stretching surface in the presence of radiation and non-uniform internal heat generation/absorption is investigated. the velocity of the stretching surface was assumed to vary according to power-law form. thermal transport is analyzed for two types of non-isothermal...

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