人的视觉心理艺术浅析

本文就人的视觉在对事物的色彩、形式、形状、光和影等诸方面,所产生的心理艺术影响作了剖析。并论述了视觉心理在电影、绘画等艺术创作中的重要性。从而激励人们更好地关注和创作美的作品。     

数值解法中的单元形状函数技巧

本文介绍从一组互不相关的函数中推导数值法中单元形状函数的简便而有效的算法,以特定的一维内插方法导出各种二维、三维的内插方法,它们对奇异性的模拟是有益的;为了适用于延伸到无限远的单元,假设形状函数类似于Lagrange多项式,但包含了一个按指数衰减的项。     

西部民族地区社会现代化与现代人格的塑造

为适应西部民族地区社会现代化的发展,必须要塑造与之相应的现代人格。文章对现代人格的特征以及西部民族地区塑造现代人格的现实可行性进行了阐述,并提出了塑造现代人格的基本对策。     

涡轮叶片尾缘针肋的换热研究

以涡轮叶片尾缘中针肋通道的换热为研究对象，讨论并计算出了一定条件下获得最大针肋通道换热量时针肋的形状曲线和换热优势，系统分析了这种拥有最佳形状曲线针肋的通道散热量随针肋物性参数及几何特征变化的规律。     

金刚石锯片使用性能与结合剂之间的关系

加工石材金刚石锯片的性能 ,既取决于金刚石 ,更取决于由金刚石与结合剂适当配合而构成的复合材料的整体性能。不同结合剂的类型、成份配比、相对密度、力学性能 ,均有着自身的特点和各自的适用范围     

浅谈我国传统图形艺术与现代标志设计

现代标志设计具有很强的现代感、信息感,传达了一种特定的信息,传统的造型艺术为现代标志设计提供了更多的思维路径,带来更多的启示。那么如何将中国传统图形与现代设计相结合,设计出具有文化韵味的现代标志是值得我们深入探讨的。     

Longitudinal shape analysis by using the spherical coordinates

One of the important topics in morphometry that received high attention recently is the longitudinal analysis of shape variation. According to Kendall's definition of shape, the shape of object appertains on non-Euclidean space, making the longitudinal study of configuration somehow difficult. However, to simplify this task, triangulation of the objects and then constructing a non-parametric regression-type model on the unit sphere is pursued in this paper. The prediction of the configurations in some time instances is done using both properties of triangulation and the size of great baselines. Moreover, minimizing a Euclidean risk function is proposed to select feasible weights in constructing smoother functions in a non-parametric smoothing manner. These will provide some proper shape growth models to analysis objects varying in time. The proposed models are applied to analysis of two real-life data sets.     

Regression for non-Euclidean data using distance matrices

Regression methods for common data types such as measured, count and categorical variables are well understood but increasingly statisticians need ways to model relationships between variable types such as shapes, curves, trees, correlation matrices and images that do not fit into the standard framework. Data types that lie in metric spaces but not in vector spaces are difficult to use within the usual regression setting, either as the response and/or a predictor. We represent the information in these variables using distance matrices which requires only the specification of a distance function. A low-dimensional representation of such distance matrices can be obtained using methods such as multidimensional scaling. Once these variables have been represented as scores, an internal model linking the predictors and the responses can be developed using standard methods. We call scoring as the transformation from a new observation to a score, whereas backscoring is a method to represent a score as an observation in the data space. Both methods are essential for prediction and explanation. We illustrate the methodology for shape data, unregistered curve data and correlation matrices using motion capture data from an experiment to study the motion of children with cleft lip.     

类矩形双肢钝体涡致振动和气动抑振机理

针对具有类矩形双肢钝体断面拱肋的大跨度拱桥在风洞试验过程易出现大幅涡激振动问题，沿拱肋模型表面进行动态风压同步测量及基于POD算法的本征气动力荷载分布模式分解，获得了涡振发生时对于周期性涡激力具有最大贡献的气动力荷载作用位置，初步揭示出此类断面涡激动发生时的局部气动力荷载作用机制。以上海卢浦大桥和肇庆西江特大桥此类具有双肢钝体断面拱桥为工程实例，结合涡激气动力沿拱肋周向时空气分布特征，提出并以二维悬吊节段模型风洞试验验证了拱肋断面多种有针对性的气动控制措施；结合实际桥梁拱肋的三维空间效应，利用全桥气弹模型