Theoretical Investigation of Homogenous Nucleation
Theoretical Investigation of Homogenous Nucleation
批准号:
9413301
负责人:
Xiao Cheng Zeng
金额:
$17.0万
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
1995
资助国家:
美国
项目状态:
已结题
起止时间:
1995-03-15 至 1999-02-28
中文摘要
摘要CTS-9413301 X. C. Zeng、乌桕U.内布拉斯加州的林肯 我们的目标是开发一个成核理论的基础上统计力学(密度泛函方法和蒙特卡罗模拟),这将同意与实验事实以前无法解释的其他成核理论。 将确定气体(液滴形成)和液体(空化、沸腾)中的成核速率以及相关特性,如临界过饱和度和拉伸强度。 五种类型的流体系统将被调查,以测试理论。 与D博士一起V. Oxtoby(芝加哥大学),P. I。提出了一种新颖的方法,这可能会导致核化领域的根本性进展。 本项目中发展的成核理论与有害气溶胶的形成、光化学烟雾、酸雨、对流层中的绿色房子效应、云的形成以及环境科学的其他领域有关。 第二个相关领域是气溶胶前体的材料合成。 ***
英文摘要
ABSTRACT CTS-9413301 X. C. Zeng, U. of Nebraska, Lincoln The objective is to develop a nucleation theory based on statistical mechanics (density-functional approach and the Monte Carlo simulation) which would agree with the experimental facts previously unexplained by other nucleation theories. The rate of nucleation in both gases (droplet formation) and liquids (cavitation, boiling), as well as related characteristics such as critical supersaturation and the tensile strength, will be determined . Five types of fluids systems will be investigated to test the theory. Together with Dr. D. V. Oxtoby (University of Chicago), the P. I. has proposed an original approach, which may lead to fundamental advances in the field of nucleation. The nucleation theory to be developed in this project has relevance on the formation of hazardous aerosols, photochemical smog, acid rain, green house effect in the troposphere, cloud formation and in other areas of environmental science. A second area of relevance is in materials synthesis form aerosol precursors. ***
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会议论文
ITR/ASE-SIM: Multiscale Treatment of Systems with Strong Heterogeneities: Development of Hybrid Atomistic-Coarse-Grained Methodology and Computer Code
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批准号:0427746
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项目类别:Standard Grant
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资助金额:$71.51万
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财政年份:2004
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负责人:Xiao Cheng Zeng
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依托单位:
ITR/AP (CHE): Mutliscale Treatment of Fluid-Solid Interfaces: Development of Hybrid Monte Carlo and Finite Element Code
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批准号:0112929
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项目类别:Standard Grant
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资助金额:$40.0万
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财政年份:2001
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负责人:Xiao Cheng Zeng
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依托单位:
Computer Studies of the Physical Foundations of the Controlled Movement of Nanomachine Parts
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批准号:9900127
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项目类别:Continuing Grant
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资助金额:$18.0万
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财政年份:1999
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负责人:Xiao Cheng Zeng
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依托单位:
U.S.-China Coopertive Research: Theoretical Investigation of Fluid Nucleation
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批准号:9603138
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项目类别:Standard Grant
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资助金额:$3.01万
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财政年份:1996
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负责人:Xiao Cheng Zeng
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依托单位:
Studies of Humidity-Induced Stiction in MEMS
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批准号:9521288
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项目类别:Standard Grant
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资助金额:$25.0万
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财政年份:1995
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负责人:Xiao Cheng Zeng
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依托单位:
NSF-CGP Fellowship Program: Computational Analysis of PhaseEquilibria and Nucleation in Fluids
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批准号:9403026
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项目类别:Standard Grant
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资助金额:$1.39万
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财政年份:1994
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负责人:Xiao Cheng Zeng
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依托单位:
海外基金