Theory of Fluids, Phase Transitions, and Interfaces

流体、相变和界面理论

• 批准号: 0553245
• 负责人: Benjamin Widom
• 金额: $ 36万
• 依托单位: Cornell University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-05-01 至 2010-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0553245&HistoricalAwards=false
• 关键词: Theory; Fluids; Phase; Transitions; Interfaces

Benjamin Widom of Cornell University is supported by an award from the Theoretical and Computational Chemistry program for research on the statistical mechanical theory of liquids and interfaces. The main aspect of the research project is the examination of the line tension, a quantity that is analogous to the surface tension, but which applies to a one-dimensional system. In work previously supported by NSF, Widom determined that the analog of the Gibbs adsorption equation for the surface tension does not apply in the one-dimensional case, a surprising result. In the current project, Widom and his students are carrying out several simulation and verification tests to determine if the prior theoretical predictions are valid. The results are expected to have a broader impact on our understanding of nano-wires and a variety of biological systems, particularly membranes and viruses. Two additional projects are also being carried out: one involves the interfacial tension between fragments of embryonic tissue which are in contact with one another while the other is a study of the hydrophobic heat capacity.

康奈尔大学的Benjamin Widom因其对液体和界面的统计力学理论的研究而获得了理论和计算化学项目的奖项。该研究项目的主要方面是检查线张力，这是一个类似于表面张力的量，但适用于一维系统。在先前由NSF支持的工作中，Widom确定了表面张力的吉布斯吸附方程的模拟不适用于一维情况，这是一个令人惊讶的结果。在目前的项目中，Widom和他的学生正在进行几次模拟和验证测试，以确定先前的理论预测是否有效。这些结果有望对我们理解纳米线和各种生物系统，特别是膜和病毒产生更广泛的影响。另外两个项目也在进行中：一个涉及相互接触的胚胎组织碎片之间的界面张力，另一个是疏水热容量的研究。