古代夯具述论

土木结构是我国古代建筑的主要形式,夯具则是重要的建筑工具,它的改良和发展与生产力水平的提高紧密相关。从考古材料看,夯具主要有石质、木质和铁质三种类型,其形制的演变和功能的改善,不仅反映了人类改造自然能力的提高,也是社会进步的一个重要标志。     

玉石冲突与四时转换--<红楼梦>结构论研究浅探

红学自产生以来就一直方兴未艾，研究《红楼梦》的专著和文章更是汗牛充栋。本文运用结构主义方法来解读《红楼梦》，发现木石前盟与金玉良缘间的矛盾即玉石对立冲突是《红楼梦》全书的最核心结构。而这种玉石冲突又是按时间顺序展开，通过四季循环将《红楼梦》的哲理提升到二律背反的人类悲剧命运的高度，进而对《红楼梦》的主题说、作者说得出自己的结论。     

从转喻与隐喻看新时期小说的发展

从转喻与隐喻的叙事形态角度考察新时期小说的发展 ,将其分为四个时期进行分析 ,并得出结论 ,小说应在转喻与隐喻的适度融合中兼顾写实与象征 ,以诗意内涵提升小说的艺术价值     

钢筋混凝土损伤梁动力特性的有限元分析

以钢筋混凝土梁为研究对象,基于Euler-Bernoulli梁理论和结构动力学理论,通过有限元分析,计算得到了不同裂纹状态下梁的固有频率和模态振型,研究了裂纹对梁振动响应的影响。结果表明,损伤结构动力特性对损伤的敏感性并不能简单的归结为高频一定敏感,低频一定不敏感,应视裂缝位置与振型节点关系而论。     

Shape analysis for automated sulcal classification and parcellation of MRI data

We describe geometric invariants that characterize the shape of curves and surfaces in 3D space: curvature, Gauss integrals and moments. We apply these invariants to neuroimaging data to determine if they have application for automatically classifying and parcellating cortical data. The curves of sulci and gyri on the cortical surface can be obtained by reconstructing cortical surface representations of the human brain from magnetic resonance imaging (MRI) data. We reconstructed gray matter surfaces for 15 subjects, traced 10 sulcal curves on each surface and computed geometric invariants for each curve. These geometric features were used classify the curves into sulcal and hemispheric classes. The best classification results were obtained when moment-based features were computed on the sulcal curves in native space. Gauss integral measures showed that they were useful for differentiating the hemispheric location of a single sulcus. These promising results may indicate that moment invariants are useful for characterizing shape on a global scale. Gauss integral invariants are potentially useful measures for characterizing cortical shape on a local, rather than global scale. Gauss integrals have found biological significance in characterizing proteins so it is worthwhile to consider their possible application to neuroscientific data.     

论传统思维方式对传统体育文化的建设与塑造

传统的思维方式是传统文化的核心,是人们对世界进行认识和思考时所采取的形式,反映了思维的轨迹。传统的思维方式主要有整体性思维方式、直觉性思维方式和内向性思维方式,而这些传统的思维方式对传统的体育文化的理论、形态、方法等的建设与塑造都产生过深刻的影响。开展传统思维方式对传统体育文化的建设与塑造的研究,能更进一步深刻地理解传统体育文化,从而对提高和发展传统体育文化起到积极地推动和促进作用。     

冶金设备备件制造企业信息化规划

在分析企业业务和价值链的基础上,构建了包含文化创新、管理创新和技术创新三大平台的企业应用系统模型,通过研究应用系统对数据处理特点和可靠性要求,将企业信息化模型划分成了知识层、管理层、执行层和控制层四个层次,在此基础上提出了冶金设备备件制造企业的网络系统和主机及存储模型.     

碟式分离机支撑条件对转子系统动力学特性影响

为保证蝶式分离机转子系统的稳定性,笔者基于有限元分析软件ANSYS分析转鼓内离心载荷、支承位置与支承刚度对碟式分离机动力学特性的影响,研究固有特性、模态频率和相应振型的变化规律。结果表明：转鼓内流体离心载荷对转子刚度产生显著影响,进而导致各阶模态变化趋势各异;支撑位置和支撑刚度对转子不同阶模态的影响趋势与相应振型有关,当转子部件变形不一致时,部分阶数模态频率可能随支撑位置上移而减小;转子振型在支承位置的径向振幅明显时,支撑刚度对模态频率产生显著影响。研究结果可用于碟式分离机转子系统的设计与优化。     

A general class of flexible Weibull distributions

We consider a linear combination of two logarithms of cumulative hazard functions and propose a general class of flexible Weibull distribution functions which includes some well-known modified Weibull distributions (MWDs). We suggest a very flexible Weibull distribution, which belongs to the class, and show that its hazard function is monotone, bathtub-shaped, modified bathtub-shaped, or even upside-down bathtub-shaped. We also discuss the methods of least square estimation and maximum likelihood estimation of the unknown parameters. We take two illustrated examples to compare the suggested distribution with some current MWDs, and show that the suggested distribution shows good performances.     

新诗诗形建设的历史透析及现实反思

相对规范的诗形是诗的重要的文体标志,诗形建设是百年新诗诗体建设的重要内容.新诗的形体建设道路曲折,百年间始终存在着诗形的自律与自由的极端对抗.在现代人的图像思维高度发达的图像时代和新诗的传播手段丰富多彩的网络时代,更应该加强以新诗的形体建设为重心的诗体建设,适度规范诗形.目前新诗界的"诗体重建"运动更要高度重视新诗的"诗形建设".