基于视觉识别的中小企业产品形象构建

从产品形象相关研究的角度出发,使用视觉识别实验的方法,观察记录用户对产品某一特征变化的反应,通过用 户识别差异性分析,寻找用户的敏感特征单元作为产品的识别单元。研究期望为具体企业产品差异性设计及产品形象 的构建提供参考。     

磁流变阻尼器结构设计及其阻尼特性试验研究

目前市场上的磁流变阻尼器由于阻尼力与体积过大而并不适用于滚筒洗衣机安装与控制,依据滚筒洗衣机悬挂 系统阻尼器力学性能以及磁流变液的材料特性和磁路设计原则,设计并制作了一个单出杆的剪切阀式磁流变阻尼器样 品,采用Instron 8800材料试验机对所设计的磁流变阻尼器进行特性试验,采集其在不同电流、频率和位移下的阻尼力。 采用MATLAB对实验数据进行处理,分析磁流变阻尼器的阻尼性能,结果表明该磁流变阻尼器设计是符合设计要求,可 用于滚筒洗衣机抑振控制策略的研究。     

基于Moldflow的带金属嵌件打印机板浇口优化设计

针对带金属嵌件打印机板使用传统注塑模具设计方法时,存在开发周期长、成本高且质量不易保证等缺点,采用 计算机辅助设计软件Pro/E和有限元分析软件Moldflow相结合的方法对制品进行不同浇口位置方案下的“填充+保压 +翘曲”模拟分析,从充填时间、流动前沿温度、气穴、熔接痕和翘曲变形等方面进行了综合比较和评测,确定了最佳浇口 设计方案。结果表明,应用Moldflow软件进行模拟仿真,找出了制件在不同浇口设置环境下缺陷产生的原因,从而为避 免或消除制件上的缺陷,进一步优化模具设计、降低生产成本,为指导实际生产提供合理的依据。     

体验式雨水景观设计研究

雨水资源的利用越来越受到关注。雨水应该作为一种设计元素,广泛应用于景观设计实践中。通过从人与景观的关系入手,研究雨水景观环境的营造,并针对雨水景观的特点,从感官效果、景观尺度、社会观念三个层面提出体验式雨水景观的设计重点,试图找到一种更为有效实用的景观设计方法,强化人与城市环境的联系和人们对于环境的责任感,并最终实现人与自然和谐相处。     

基于受众需求视角的地方高校网站建设研究

高校网站是大学最重要的媒体和展示平台,是教师、学生、企业、媒体了解高校的主要媒介。长期以来,地方高校网站以高校为中心,忽视受众的需求,导致大多数高校网站出现设计水平低、内容单一、缺乏人文关怀的现状。要改变当前现状,可以从受众需求的角度入手,借鉴营销4C的理念,真正发挥高校网站的作用。     

Sample Size Calculation and Blinded Sample Size Recalculation in Clinical Trials Where the Treatment Effect is Measured by the Relative Risk

In clinical trials with binary endpoints, the required sample size does not depend only on the specified type I error rate, the desired power and the treatment effect but also on the overall event rate which, however, is usually uncertain. The internal pilot study design has been proposed to overcome this difficulty. Here, nuisance parameters required for sample size calculation are re-estimated during the ongoing trial and the sample size is recalculated accordingly. We performed extensive simulation studies to investigate the characteristics of the internal pilot study design for two-group superiority trials where the treatment effect is captured by the relative risk. As the performance of the sample size recalculation procedure crucially depends on the accuracy of the applied sample size formula, we firstly explored the precision of three approximate sample size formulae proposed in the literature for this situation. It turned out that the unequal variance asymptotic normal formula outperforms the other two, especially in case of unbalanced sample size allocation. Using this formula for sample size recalculation in the internal pilot study design assures that the desired power is achieved even if the overall rate is mis-specified in the planning phase. The maximum inflation of the type I error rate observed for the internal pilot study design is small and lies below the maximum excess that occurred for the fixed sample size design.     

Demand and supply network design scope for personalized manufacturing

This paper first presents personalizing and personalized manufacturing as a means for firms to meet the rising challenge, faced by a large variety of manufacturers, to offer innovative highly personalized products with short and reliable delivery delays in a digital and global economy that is highly turbulent and competitive. It positions personalizing versus the current trend of mass customising. It characterizes complementary types of personalizing and highlights the key elements for their successful implementation from a demand and supply network perspective. Finally, it illustrates the scope and addresses how personalizing affects the design of the demand and supply network, emphasizing the scope of this design influence, the variety of options for each element of the network, and the interrelationships between the design decisions.     

简析活动课程的设计与实施

时值活动课程研究深化时期，本文从澄清活动课程基本结构、呈示活动课程的一般编制入手，揭示活动课程的不同运行形式，总结活动课程的实施原则，最终形成系统化的有代表性活动课程的操作模式。本文以探寻活动课程微观运营模式为核心，以期为活动课程相关理论的完善提出一些建设性建议。     

用VB实现图像浏览

介绍图像浏览器的设计方法,分别用DriveListBox、DirListBox、FileListBox控件确定图像文件的位置,用Image控件浏览图像.