نتایج جستجو برای: sublimation

تعداد نتایج: 2151  

2014
Xiaoqing Dai Ning Huang

Snow sublimation is an important hydrological process and one of the main causes of the temporal and spatial variation of snow distribution. Compared with surface sublimation, drifting snow sublimation is more effective due to the greater surface exposure area of snow particles in the air. Previous studies of drifting snow sublimation have focused on suspended snow, and few have considered salt...

2012
Ken Gemes KEN GEMES

The notion of sublimation is essential to Nietzsche and Freud. However, Freud’s writings fail to provide a persuasive notion of sublimation. In particular, Freud’s writings are confused on the distinction between pathological symptoms and sublimation and on the relation between sublimation and repression. After rehearsing these problems in some detail, it is proposed that a return to Nietzsche ...

2013
Wenhui Tang Daorong Wang Xia Huang Xianwen Ran

Based on the thermodynamic theory, the dependence of sublimation energy of metal on temperature and pressure is discussed, and the results indicate that the sublimation energy decreases linearly with the increase of temperature and pressure. Combined with this result, the blow-off impulse of aluminum induced by pulsed X-ray is simulated by smoothed particle hydrodynamics (SPH) method. The numer...

2016
Joka Buha Roberto Gaspari Antonio Esau Del Rio Castillo Francesco Bonaccorso Liberato Manna

The structural and compositional stabilities of two-dimensional (2D) Bi2Te3 and Bi2Se3 nanocrystals, produced by both colloidal synthesis and by liquid phase exfoliation, were studied by in situ transmission electron microscopy (TEM) during annealing at temperatures between 350 and 500 °C. The sublimation process induced by annealing is structurally and chemically anisotropic and takes place th...

Journal: :Ellipsis: A Journal of Art, Ideas, and Literature 2016

2016
Robert L. Skaggs D. Peterson

A fundamental analysis of some of the factors affecting entrainment in sublimation is proposed and the predictions are verified experimentally by investigation of the separation of particulate silicon carbide from ammonium chloride. It was found that for the impurity particle size distribution studied, increased system pressure is effective in reducing entrainment at a given mass rate of sublim...

One of Mawlawi’s psychological approaches is the process of Sublimation or Catharsis which is used to change and turn the inner desires of mankind to suitable desires that are acceptable and favourable to society and social constitutions. Since the nature of human-being is the best cradle for conflicts or oppositions of The Upper and Lower Desires (i.e. the former known as spiritual desires and...

1999
Eran Hood Mark Williams Don Cline

Sublimation from the seasonal snowpack was calculated using the aerodynamic pro®le method at Niwot Ridge in the Colorado Front Range. Past studies of sublimation from snow have been inconclusive in determining both the rate and timing of the transfer of water between the snowpack and the atmosphere, primarily because they relied on one-dimensional measurements of turbulent ̄uxes or short term d...

Journal: :Molecules 2015
Vivian Ruz Mirtha Mayra González Danny Winant Zenaida Rodríguez Guy Van den Mooter

In the present work, the sublimation of crystalline solid 2-(2-nitrovinyl) furan (G-0) in the temperature range of 35 to 60 °C (below the melting point of the drug) was studied using thermogravimetric analysis (TGA). The sublimated product was characterized using Fourier-transformed-infrared spectroscopy (FT-IR) and thin layer chromatography (TLC). The sublimation rate at each temperature was o...

2017
Shayan Shahbazi S Adam Stratz John D Auxier Daniel E Hanson Matthew L Marsh Howard L Hall

This work reports the thermodynamic characterizations of organometallic species as a vehicle for the rapid separation of volatile nuclear fission products via gas chromatography due to differences in adsorption enthalpy. Because adsorption and sublimation thermodynamics are linearly correlated, there is considerable motivation to determine sublimation enthalpies. A method of isothermal thermogr...

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