This paper presents a motion control algorithm for virtual human based on torque optimization. The algorithm is founded on the use of quaternion, recursive dynamics and optimal control.

本文以四元数、递归动力学和优化控制为基础，提出了一种基于力矩优化的虚拟人运动控制算法。

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Computational multibody dynamics and virtual prototyping technology are brand new modeling and analysis methods for simulating the landing process of an aircraft.

而计算多体系统动力学和虚拟样机技术的出现，使得对于飞机着陆过程起落架和机身动态响应的模拟更逼近于现实。

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Based on the theory of "Multi-body System Dynamics" , this paper uses software to setup a virtual prototype for a "Personal Defense Weapon" (PDW).

本文基于多体系统动力学理论，利用机械系统动力学分析软件建立了某单兵自卫武器的虚拟样机模型。

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In that report, which talked about the data mining efforts undertaken by the ODNI, Reynard was described as: "a seedling effort to study the emerging phenomenon of social (particularly terrorist) dynamics in virtual worlds and large-scale online games and their implications for the intelligence community".

BBC: NEWS | Technology | US seeks terrorists in web worlds