光电信息测量瞬时速度的研究

在科学研究和工业生产中,常常需要精确测量各种物理参量。如：重量、长度、速度、角度、体积、压力、——等等。对于测量正常物体的运动速度,一般情况下比较容易求得。但是,如果是求取运动物体的瞬间速度,如抛出物体或自由落体的瞬间速度、汽车座椅受冲击时的瞬时速度等等,就比较难了。目前国内尚无此测量仪器问世。本文论述的运动物体的瞬间速度测量原理和设计制作技术,对检测物体受冲击的灵敏程度有借鉴作用。     

Commentary: Foundations in performance

In this article, I outline the principal conceptions of performance that have guided language‐oriented work on performance, where they come from, and how they relate to or diverge from one another. I consider first the undeveloped potential for performance‐oriented work in variationist sociolinguistics, and then turn to performance as virtuosic display, as developed principally in linguistic anthropology, performance as theatricality, with special attention to the analysis of the interaction order, and cultural performance as a marked, heightened event that affords a richly reflexive vantage point on culture. I conclude with a discussion of mediated performance and the productiveness of the concept of remediation in bridging the gap between co‐present performance and mediated performance.     

论工艺美术品展示设计的文化与风格

分析了展示文化及展示风格中的现状与根源，以工艺美术品的展示设计为例，通过对展示设计的结构、展示文化与设计的美学基础、工艺美术品的展示设计方向3个方面的论述，提出：让展示设计积极主动地适应本土文化才能从根本上改变受欧美文化影响的局面，从而推动工艺美术品的展示设计不断向前发展。     

LED显示屏几种控制电路及比较

介绍四种用于LED显示屏的控制电路并对各自特点进行比较。     

Self-reported Use of Emotional Display Rules in the Netherlands and Iran: Evidence for Sociocultural Influence

Sociocultural differences in children's use and understanding of emotional display rules have been under-researched. In the present study, 56 Dutch and 56 Iranian children aged 10–11 years took part in a structured interview about their experiences of using emotional display rules. In comparison with the Dutch children, the Iranian sample was more likely to report having actually used emotional display rules themselves, more likely to identify family audiences for display rules, and less likely to identify peer audiences. In addition, they were more likely than the Dutch children to identify both prosocial and self-protective motives for concealing emotion from family audiences, and less likely to identify self-protective motives for concealing emotion from peers. Results are interpreted in the light of socialization processes involved in the development of emotion regulation.     

CSTN-LCD驱动算法模型及硬件实现

针对多线寻址驱动方案,以驱动算法的数学理论为基础,建立了可由EDA工具综合的硬件驱动算法模型。该算法模型综合了FRC-PWM灰度技术的解决方案,通过FPGA验证,实现了在保证CSTN-LCD显示效果的前提下使电路设计达到最优化。     

面向对象数据库管理系统VFP 课堂教学显示界面的控制技术

Visual FoxPro是高等院校计算机专业或计算机相关专业的基础课.文章论述了在VFP多媒体教学中显示界面的重要性,并从Visual FoxPro的课堂教学出发,阐述了教学显示界面的前景颜色、背景颜色、字体、字号的控制技术.     

Maximizing Revenue Through Two‐Dimensional Shelf‐Space Allocation

We consider the problem of optimally allocating contiguous rectangular presentation spaces in order to maximize revenues. Such problems are encountered in the arrangement of products in retail shelf‐space and in the design of feature advertising displays or webpages. Specifically, we allow (i) the shape of a product's presentation to have a vertical as well as a horizontal component and (ii) displays to extend across multiple shelves for in‐store presentations. Since the vertical location of the shelf on which a product is displayed affects its sales, each vertical location is assigned its own effectiveness with regard to revenue generation. The problem of maximizing the total weighted revenue of a display is strongly NP‐hard. Therefore, we decompose it into two subproblems. The first consists of allocating products to different cabinets. In the second, within each cabinet, each product's units are arranged in a contiguous rectangle and assigned a location. These subproblems are solved using an innovative approach that uses a combination of integer programming and an algorithm for the maximum‐weight independent set problem. Based on computational studies on both real‐world and simulated data, we demonstrate the efficiency and effectiveness of our approach. Specifically, the revenue generated by this scheme is within 1% of the optimum for actual data and within 5% for simulated data.     

Nplot控件在远程数据监测系统中的应用

针对远程数据监测系统中历史曲线显示的需要，介绍了基于Web的远程监测系统中历史曲线的显示机制，通过Nplot控件实现了多条历史曲线的显示。主要介绍了数据库服务器和显示控件两部分，开发出的曲线显示控件（Nplot）可以嵌入到任何Web页面中，通过系统的良好运行情况，证明本系统是成熟可靠的。     

CRT显示管分辨率自动测量系统

介绍了一种CRT显示管分辨率自动测量系统,可以对CRT显示管的线宽进行快速准确的测量。该系统采用面阵CCD摄像机做为传感器,具有自动光学聚焦和投影管聚焦电压自动调整功能,有效地提高了系统的测量精度和测量速度。