虚拟现实中多刚体人体模型的构建     

朱雄军 《武汉职业技术学院学报》2005,4(1):60-62

本文概述了人体Hanavan模型，运用面向对象的技术设计了骨骼类和关节类，实现了多刚体三维人体模型的构建，为模拟三维人体运动打下了基础。  相似文献   

C语言中printf函数的功能注解     

李建俊  耿倩文 《思茅师范高等专科学校学报》2007,23(6):53-55

pfinff函数是C语言中常用的输出函数，文中详细介绍了pfinff函数的功能，同时给出了在使用过程中需要注意的事项，便于读者在今后能准确有效地使用该函数。  相似文献   

利用页切换技术消除图像闪烁现象     

韩茂盛 《沧州师专学报》2005,21(3):62-63

在动画设计中,可以使用多页动画即页切换技术来消除图像闪烁现象.采用Visual C 编写了一简短程序,来演示实际的多页动画技术.  相似文献   

支持向量分类算法在5-HT3受体拮抗剂的构效关系研究中的应用     

杨善升  陆文聪  纪晓波  陈念贻 《上海大学学报(英文版)》2006,10(4):366-370

In this work, support vector classification （SVC） algorithm was used to build structure-activity relationship （SAR） model of the 5-hydroxytryptamine type 3 （5-HT3 ） receptor antagonists with 26 compounds. In a benchmark test, SVC was compared with several techniques of machine learning currently used in the field. The prediction performance of the model was discussed on the basis of the leave-one-out cross-validation. The results show that the accuracy of prediction of SVC model was higher than those of back propagation artificial neural network （BP ANN）, K-nearest neighbor （KNN） and Fisher methods.  相似文献   

中国需要真正的创业教育——基于“挑战杯”全国大学生创业计划竞赛的分析   总被引：20，自引：0，他引：20  

丁三青 《高等教育研究》2007,(3)

“挑战杯”全国大学生创业计划竞赛引发的大学生创业热潮及其争论受到越来越多的关注。这些争论反映了创业计划竞赛存在的问题乃至中国高等教育的弊端,即应试性教育与功利性竞赛、精英化教育与理想化竞赛、学生对科研参与度低与竞赛作品学院气浓、高校科研的封闭性与企业对竞赛参与的冷漠性。必须加大改革力度,构建真正意义上的创业教育体系:走出竞赛功利化的误区;创新人才培养理念;解构人才的“被格式化”;打破“以赛代学”模式,构建创业教育“立交桥”。  相似文献   

Too Much,Too Young? An Analysis of the Key Stage 3 National Literacy Strategy in Practice   总被引：1，自引：0，他引：1  

Neil Allen 《English in Education》2002,36(1):5-15

This article was first drafted after I worked for 14 weeks last year in a school that was piloting the National Literacy Strategy at Key Stage 3. I now work in another school delivering the full published Strategy to Year 7. In this article, I explore the contradictions inherent in the Strategy in attempting to develop the English and literacy skills of Key Stage 3 pupils. Ultimately, my argument is that the educational benefits of this teaching to objectives is at odds with some of the deeper aims of the Strategy and of English teaching, and that the constant assessment involved puts too much pressure on our youngsters at an age when they should be concentrating on social development as people.  相似文献   

通过串音预测对PCB布线的3W规则进行验证     

莫付江 《天中学刊》2003,18(2):30-33

在传输线理论的基础上，利用有限元(FEM)法计算分层介质中微带线上场的分布，并通过SPICE仿真对其等效电路在不同频率电源激励下产生的串音进行预测．预测结果验证了印制电路板布线遵从“3W”规则的重要性．由此得出结论：3W规则的使用有功于PCB设计满足EMC系统设计标准，并最大限度地减小印制线之间的耦合．  相似文献   

Pattern design on 3D triangular garment surfaces     

WANG Jin LU Guo-dong LI Ji-tuo CHEN Long ZHANG Dong-liang 《浙江大学学报(A卷英文版)》2007,8(10):1642-1649

This paper focuses on a pattern design method for a 3D triangular garment surface. Firstly, some definitions of 3D style lines are proposed for designing the boundaries of patterns as drawing straight lines or splines on the triangular surface. Additionally some commonly used style lines are automatically generated to enhance design efficiency. Secondly, after style lines are preprocessed, a searching method is presented for quickly obtaining the boundaries and patches of a pattern on the 3D trian- gular surface. Finally a new pattern design reuse method is introduced by encoding/decoding the style line information. After style lines are encoded, the pattern design information can be saved in a pattern template and when decoding this template on a new garment surface, it automates the pattern generation for made-to-measure apparel products.  相似文献   

基于TMS320C6713的G.729算法的优化及实现的研究     

邱昌东 《南平师专学报》2007,26(4):39-42

通过研究 G.729语音编码算法的原理,分析其基本特征及 DSP 体系结构特点,提出了一些有效的优化措施。在 TI的 TMS320C6713 DSK 平台上实现了该算法的编解码实验,结果证明其输出语音仍然保持了较高的合成品质  相似文献   

Numerical Calculation of Concrete Slab Response to Blast Loading     

ZHOU Xiaoqing HAO Hong KUZNETSOV Valerian A WASCHL John 《天津大学学报(英文版)》2006,12(B09):94-99

In the present paper, a dynamic plastic damage model for concrete has been employed to estimate responses of a reinforced concrete slab subjected to blast loading. The interaction between the blast wave and the concrete slab is considered in 3D simulation. In the first stage, the initial detonation and blast wave propagation is modelled in 2D simulation before the blast wave reaches the concrete slab, then the results obtained from 2D calculation are remapped to a 3D model. The calculated blast load is compared with that obtained from TM5-1300. Numerical results of the concrete slab response are compared with the explosive test carried out-in the Weapons System Division, Defence Science and Technology Organisation, Department of Defence, Australia.  相似文献