个性化三维人脸模型的特征约束多分辨率绘制

给出了一种有效支持个性化变形的三维人脸模型结构和一种特征约束的实时连续多分辨率绘制方法。为方便变形中特征点及相关区域的移动，模型结构的设计体现了人脸特征及模型中点、边、面的邻接关系。基于这种模型结构的多分辨率绘制方法给出了特征约束的有序递减网格设计，实现了视距相关的快速模型简化，在保持模型视觉特征的同时保证了实时连续绘制。     

Bulk metallic glasses formed by alloying the Cu_6Zr_5 cluster

The bulk metallic glass formation in the Cu-Zr-M ternary systems by alloying of a binary basic Cu6Zr5 cluster was inves- tigated, where M stands for Sn, Mo, Ta, Nb, Ag, Al and Ti. The Cu6Zr5 cluster is a capped Archimedean antiprism that characterizes the local structure of the Cu10Zr7 crystalline phase. This cluster composition almost superposes with Cu-Zr eutectic Cu0.56Zr0.44. A se- ries of alloys along the cluster line (Cu6Zr5)1-xMx were examined for their glass forming abilities. Alloy rods with a diameter of 3 mm were prepared by copper mould suction casting method and analyzed by XRD and thermal analysis. The Cu-Zr based bulk metallic glasses were discovered with minor Nb, Sn, Mo, Ta additions (≤2at%) and Al, Ti, Ag (8at%≤concentration≤9at%). The alloying mechanism was discussed in the light of atomic size, cluster-linking structure and electron concentration factors.     

NONSTRUCTED GRID MESH FINITE VOLUME METHOD AND APPLICATION

Finite Volume Method (FVM) which can solve fluid problems effectively is used in this paper. Gauss theorem is used to transfer volume integration to area integration , by which the relation formula of the nodes around each element is founded based on the constancy of the flux into and out of the element. With that the discrete equations are obtained. This method with free cubic element is applied in 3D seepage and tidal flow problems. From the practice it can be found that seepage flux is more accurate than FEM and FVM also has the advantages of good stability, convenience of solving. easy programming, less computing time and storage.     

NUMERICAL ANALYSIS OF WATER SURFACE PROFILE IN RIVER AFFECTED BY TIDE FLUCTUATION

A Finite Difference Method with four points weighted implicit scheme and Newton-Raphson iteration method are introduced to complete the flood routing in the tidal river. The problems related to normalization of cross-sectional area and optimization of weighting factor α are discussed and α = 0. 5 - 0. 7 is suggested. With such a α, high accuracy, stable and convergence results and flexible time step will be expected. The computational example of a tidal river in Liaoning Province shows the good agreement with the measuring data on prototype.     

The Use of Image Analysis to Simulate Growth Kinetics of Ferrite by Carbon Diffusion in SG Cast Iron

1.IntroductionThe use of the Quantimet 900 imageanalysis system to simulate the growth kine-tics of ferrite by carbon diffusion inspheroidal graphite(SG)cast iron has beendiscussed[1].The results obtained from theQ900 agreed qualitatively with experiment.     

液压CAD图形库的组建与管理

本文为液压元件及系统计算机辅助设计(CAD的一个)子课题的研究报告。它是利用微机与APPLEⅡ兼容的紫金Ⅱ高分辨率作图功能,组建了图形库。并采用BASIC语言编制管理程序,形成一个绘图系统用以组织人机对话,交互式自动生成液压原理图及其存贮。     

大豆异黄酮生理功能的研究进展

大豆异黄酮因具有明显的生物学活性已越来越引起社会和学术界的普遍关注,是近年来科学家研究的热点。研究表明,大豆异黄酮与人类健康密切相关,具有许多生理功能,如抗肿瘤作用、对血管的防护作用、抗氧化活性、类似女性雌激素作用以及抗激素作用等。文中阐述了大豆异黄酮生理功能的研究进展。     

Simulation algorithm for spiral case structure in hydropower station

In this study, the damage-plasticity model for concrete that was verified by the model experiment was used to calculate the damage to a spiral case structure based on the damage mechanics theory. The concrete structure surrounding the spiral case was simulated with a three-dimensional finite element model. Then, the distribution and evolution of the structural damage were studied. Based on investigation of the change of gap openings between the steel liner and concrete structure, the impact of the non-uniform variation of gaps on the load-bearing ratio between the steel liner and concrete structure was analyzed. The comparison of calculated results of the simplified and simulation algorithms shows that the simulation algorithm is a feasible option for the calculation of spiral case structures. In addition, the shell-spring model was introduced for optimization analysis, and the results were reasonable.     

特大型椭圆封头的分瓣计算

对12m近似椭圆封头实施合理的分瓣，创造了足球瓣顶圆的新方法，并进行了瓣片尺寸计算。     

我国软件产业发展需要大举措

目前我国软件产业规模小、人员分散、抗风险能力低下，处于发展的初级阶段，但人才优势与发展册时并存。面对挑战，必须有相应的大举措，如联合、重组、兼并，如多方筹资、加大投入，如强化管理、政策扶植等等，最终做出正确选择。