中国古代墓志形制变迁中的设计思想内蕴

以中国历代墓志形制与文体变化为纵向轴，一是以魏晋南北朝中的“志”“碑”合一形式以及宋齐梁陈中出现的简单化的墓志形式，论述了中国古代墓志设计的“实用”思想；二是以历代墓志文体演变为研读对象，系统论述了墓志文体设计演变中的“实用”与“浮华”的转变。系统考察中国历代墓志的形制与文体设计，墓志作为随葬风俗的一部分，其形制变化基本轨迹还是以实用为美、为尚。浮华的特质在重葬、经济允许的情况下，尤其是墓志志文成为文化人施展才华的载体之际，文体适应了为死者“歌颂”的普世之需，同时也体现了设计“应需而变”的设计本质。     

间接挤压铸造浇口形状对充型形态的影响

在间接挤压铸造过程中,充型液面的稳定性是铸件质量的保证。以平板铸件为研究对象,利用专业铸造软件 ProCAST进行数值模拟,分析了不同浇口形状与液面稳定性的关系。结果表明：带扩张角的浇道充型效果明显优于直浇 道,且随着扩张角的增大,其充型形态越平稳,液面凸起也越小;双浇道的浇注系统其充型效果不佳,液面波动加剧。     

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.     

Testing the monotonicity or convexity of a function using regression splines

Methods for smoothed isotonic or convex regression are useful in many applications. Sometimes the shape assumptions constitute a priori knowledge about the regression function, but often the shape is part of the research question. The authors propose tests for monotonicity and convexity using constrained and unconstrained regression splines. The tests have good large‐sample properties and the small‐sample behaviour is illustrated through simulations. Extensions to the partial linear model and the generalized regression model are presented. The Canadian Journal of Statistics 39: 89–107; 2011 © 2011 Statistical Society of Canada     

论中国古代绘画“形”“神”兼重的思想

中国古代绘画"形""神"兼重的思想可分为三个阶段:汉朝时期为"形""神"兼重绘画思想的提出时期,魏晋南北朝时期为"形""神"兼重绘画思想的发展时期,唐朝时期为"形""神"兼重绘画思想的深化时期。     

考虑油膜结合面的机床动态特性分析

考虑油膜结合面特性的机床主运动板的动态特性分析,对油膜的刚度分布情况作了3种假设,将假设得到的机床动态特性与不考虑油膜的特性进行比较,并用实验测试数据进行验证正确性。结果表明考虑油膜即结合面的特性对模态分析结果产生不可忽略的影响,其影响效果从第5阶模态振型开始表现明显;油膜刚度成分布幂函数最接近实验测试结果,因此可以看做油膜工作状态下分布的简化函数。     

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     

平等权的存在形态及其内涵

现代平等权已经从道德形态演进为权利形态,成为宪法上的一项基本人权,其本质是对每一个个体的平等人格的尊重。平等权具有明确的、独特的权利内涵,核心部分包括禁止歧视和反对特权。现实生活中我国的不平等现象屡见不鲜,需要从意识更新和制度建构两方面入手,重构平权社会。