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3篇 您的检索式：作者名="GuoquanLiu"

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		题名	作者	年代	出处	被引量
	1	Verification of topological relationship in 2-D grain growth process by simulation显示文摘Behaviors of the quasi-steady state grain size distribution and the corresponding topological relationship were investigated using the Ports Monte Carlo method to simulate the normal grain growth process. The observed quasi-steady state grain size distribution can be well fit by the Weibull function rather than the Hillert distribution. It is also found that the grain size and average number of grain sides are not linearly related. The reason that the quasi-steady state grain size distribution deviates from the Hillert distribution may contribute to the nonlinearity of the relation of the average number of grain sides with the grain size. The results also exhibit the reasonability of the relationship deduced by Mullins between the grain size distribution and the average number of grain sides.	ChaoWang GuoquanLiu YaSun XianggeQin	2004	Journal of University of Science and Technology Beijing2004，11，2：	1
	2	Derivation of Hillert-type 3D grain growth rate model with topological considerations and discussion on its grain size parameter显示文摘A Hillert-type three-dimensional grain growth rate model was derived through the grain topology-size correlation model,combined with a topology-dependent grain growth rate equation in three dimensions. It shows clearly that the Hillert-type 3D grain growth rate model may also be described with topology considerations of microstructure. The size parameter bearing in the model is further discussed both according to the derived model and in another approach with the aid of quantitative relationship between the grain size and the integral mean curvature over grain surface. Both approaches successfully demonstrate that, if the concerned grains can be well approximated by a space-filling convex polyhedra in shape, the grain size parameter bearing in the Hillert-type 3D grain growth model should be a parameter proportional to the mean grain tangent radius.	GuoquanLiu HaiboYu XiaovanSong XianggeQin ChaoWang	2004	Journal of University of Science and Technology Beijing2004，11，3：	0
	3	Pilot biomechanical design of biomaterials for artificial nucleus prosthesis using 3D finite-element modeling显示文摘Pilot biomechanical design of biomaterials for artificial nucleus prosthesis was carried out based on the 3D finite-element method. Two 3D models of lumbar intervertebral disc respectively with a real human nucleus and with the nucleus removed were developed and validated using published experimental and clinical data. Then the models with a stainless steel nucleus prosthesis implanted and with polymer nucleus prostheses of various properties implanted were used for the 3D finite-element biomechanical analysis. All the above simulation and analysis were carried out for the L4/L5 disc under a human worst-daily compression load of 2000 N. The results show that the polymer materials with Young's modulus of elasticity E = 0.1-100 MPa and Poisson's ratio v=0.35-0.5 are suitable to produce artificial nucleus prosthesis in view of biomechanical consideration.	QijinHuang GuoquanLiu YongLi JinGao ZhengqiuGu YuanzhengMa HaibinXue	2004	Journal of University of Science and Technology Beijing2004，11，6：	0

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