Dynamics and Scaling in Materials Physics

小行星9510394 这项研究针对的是远离平衡的复杂系统。 开发和利用新的理论技术来研究具有一系列应用的项目，包括断裂，地震，摩擦，颗粒流和生物系统。 第一个主题集中在模型和真实的系统，PI和其他人在自组织临界性的背景下研究的传输特性。 第二个主题涉及地震动力学建模领域的持续工作，以及摩擦和颗粒流的新微观模型的开发。 第三个主题涉及空间扩展系统的预测算法的开发和测试。 我们试图理解的世界上的许多系统都远非平衡。 例子包括断裂（材料的断裂）、地震、摩擦、颗粒流和生物系统。 本项目将继续主要研究员在理论上解决这些现象的工作。 其中一个主题涉及研究一种称为自组织临界性的特殊方法，该方法适用于许多这些情况下的运动，至少在某些时候。 第二个主题继续在地震动力学领域的工作，以及开发摩擦和颗粒流的新模型。 研究结果将直接与最近的实验数据进行比较。 第三个主要主题涉及开发和测试新的算法，这些算法可以根据这些系统的过去预测未来。 ***

9510394 Carlson This research addresses complex systems far from equilibrium. New theoretical techniques are developed and exploited to study projects that have an array of applications, including fracture, earthquakes, friction, granular flow, and biological systems. The first topic focuses on transport properties of both models and real systems that the PI and others have studied in the context of self-organized criticality. The second topic involves continuing work in the area of modeling earthquake dynamics, as well as the development of new microscopic models for friction and granular flow. The third topic addresses the development and testing of prediction algorithms for spatially extended systems. %%% Many systems that we seek to understand in the world around us are far from equilibrium. Examples include fracture (breaking of materials), earthquakes, friction, granular flow, and biological systems. This project will continue the work of the Principal Investigator in addressing such phenomena theoretically. One topic involves studying a particular approach called self-organized criticality that applies to motion in many of these situations, at least some of the time. A second topic continues work in the area of earthquake dynamics as well as developing new models for friction and granular flow. The results of the study will be directly compared with recent experimental data. The third major topic involves developing and testing new algorithms that predict the future based on past for such systems. ***