GOALI: Dynamics of Molecules as a Probe of Pore Space

目标：作为孔隙空间探针的分子动力学

• 批准号: 0109433
• 负责人: David Cory
• 金额: --
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-01-15 至 2002-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0109433&HistoricalAwards=false
• 关键词: GOALI; Dynamics; Molecules; Probe; Pore

AbstractCTS-0109433D. G. Cory, MITThis proposal, based on Nuclear Magnetic Resonance (NMR), is at the forefront of analysis of the structure and flow in porous material, with emphasis to geophysical exploration. The method will significantly improve the effectiveness of NMR to explore and characterize the structure and the dynamics of fluid transport through the porous material by coherent averaging. The NMR signature is separated in to an isotropic spectrum, a frequency modulation, and an amplitude modulation. These components can report on the chemistry of the mobile phase, the basic field variations, and the time/length scale correlation of the solid phase and the mobility of the mobile phase.The proposed work for next year is focused on the design philosophy for the NMR coherent averaging scheme that suppress frequency modulations, extracting the model independent metrics from the amplitude modulation term, and finally to consider the inverse problem in these complex systems. This would be a significant development at the forefront of this technology.This work is in collaboration between university/industry (MIT and Schlumberger) with a co-PI from each organization. The industrial partner is making substantial contribution to the project including the time of the co-PI from the industry.BROADER IMPACTThe proposed project being at the forefront of NMR technology has broader impact in two fronts. First, the program involves training graduate students with a unique set of expertise. On a more general front, the method is applicable to many industrial and biological processes including exploration of material with insight that currently is not possible.Since the proposed project is truly at the forefront of a major technology, and the scope is limited to the major innovative aspects of the overall research program, and the effective collaboration between the university and the industrial partner, the revised project is recommended for funding as a GOALI project.

摘要CTS-0109433 D。G.科里，麻省理工学院这一建议，基于核磁共振（NMR），是在多孔材料的结构和流动分析的最前沿，重点是地球物理勘探。 该方法将显着提高核磁共振的有效性，探索和表征的结构和流体输运通过多孔材料的相干平均的动力学。 NMR特征被分离为各向同性谱、频率调制和振幅调制。 这些组件可以报告移动的相的化学性质、基本场变化、固相的时间/长度标度相关性和移动的相的迁移率。明年的拟议工作重点是抑制频率调制的NMR相干平均方案的设计理念，从幅度调制项中提取与模型无关的度量，最后考虑这些复杂系统的逆问题。 这将是这项技术前沿的一个重大发展。这项工作是在大学/工业（麻省理工学院和斯伦贝谢）与每个组织的共同PI之间的合作。 工业合作伙伴为该项目做出了巨大贡献，包括来自工业界的共同PI的时间。更广泛的影响处于NMR技术前沿的拟议项目在两个方面具有更广泛的影响。 首先，该计划涉及培养具有独特专业知识的研究生。 在更广泛的方面，该方法适用于许多工业和生物过程，包括目前不可能的材料探索。由于拟议的项目真正处于重大技术的前沿，范围仅限于整体研究计划的主要创新方面，以及大学和工业合作伙伴之间的有效合作，建议将修订后的项目作为全球海洋法倡议项目供资。