基于QT的数据图形化设计与分析

在用QT进行用户界面开发时,由于其没有内置的图形窗体控件,使得开发者在进行数据图形化界面的开发时需要编写大量代码,这样降低了开发效率。针对这一问题,利用双缓冲技术以及QT的事件机制,设计了一个绘图通用类,它能够实现基本的绘图功能以及多样的图形数据分析方式。目前该方法已经应用在航电仿真系统的RS422总线监控软件以及数据记录软件中。     

基于ActiveX控件的VB浏览器设计与实现

本文基于Visual Basic的ActiveX控件来设计与实现Internet浏览器。首先介绍了相关ActiveX控件的使用方法及常用属性、事件与方法,然后在VB窗体中对Internet浏览器的界面进行详细设计,最后是关于本设计的代码编程实现。本设计与外部网络环境相结合,让用户体验到了VB语言强大的网络编程应用能力。     

VB中改变窗体时控件的改变

在VB设计中,界面设计是其中重要的一个环节,本文主要针对在用户使用应用程序时,改变原有界面的大小,而带来的使其他控件不协调这一问题进行讨论.     

VB中改变窗体时控件的改变

在VB设计中，界面设计是其中重要的一个环节，本文主要针对在用户使用应用程序时，改变原有界面的大小，而带来的使其他控件不协调这一问题进行讨论。     

基于分层思想的界面控件拖动

通过分析传统的控件拖动方法存在的问题,提出了一种基于分层思想的、可视化的界面控件拖动的方法,并应用C#.Net核心设计模式将界面控件拖动的设计过程划分为若干层,目的是使界面控件拖动的设计具有可测试性、可管理性和可控制性的特点。     

基于C++Builder实现水轮发电机组故障诊断系统分析

C++Builder具有快速的可视化开发环境:我们只需简单地把控件拖到窗体上,定义一下它的属性,设置一下它的外观,就可以快速地建立应用程序界面;水轮发电机组故障诊断系统在水电站水轮发电机组中占据核心地位。将C++Builder用于实现水轮发电机组故障诊断系统中具有较好的效果。本文首先对状态监测系统的总体结构及软件功能予以了一番介绍,其次阐述了水轮发电机组诊断专家系统结构及其实现。     

在VB中动态创建与卸载控件方法研究——以学校考勤系统为例

以学校考勤系统为例,介绍了在VB中用动态创建与卸栽控件的方法来解决软件实际使用控件数量不确定的情况,以及解决无法在combobox的click等事件中动态卸载控件的问题,使软件的灵活性更高、界面更加简洁。     

用VB制作多步运算器

论述了在VB环境下,如何利用控件数组制作多步运算器的问题。主要阐述了实现多步运算器的各个环节的处理方法,其中包括界面的设计、各控件数组的建立、控件属性的设置、具体实现方法、步骤及代码等;     

移动Web应用程序

介绍ASP.NET移动控件添加到ASP.NET Web窗体的扩展过程。ASP.NET为移动设备提供的Web应用程序模型与为面向桌面浏览器的ASP.NET应用程序提供的模型一样丰富。     

基于MFC的电子接插件瞬断检测显示界面

为了便于对电子接插件瞬断检测仪器接收到的数据进行收集、整理、分析,创建了基于MFC的电子接插件瞬断检测上位机显示界面,介绍了上位机界面的总体设计方法,并对主界面的各个单元的组成和功能进行了简要的说明,详细讲述了数据库的建立、查询编制以及Labview控件。通过实验及编程操作表明,此检测显示界面简化了高速列车的接插件检测结果分析。     

Students' Reactions to the Introduction of Videoconferencing for Classroom Instruction

This study examined how students who had no prior experience with videoconferencing would react to the use of videoconferencing as an instructional medium. Students enrolled in seven different courses completed a questionnaire at the beginning of the semester and again at the end of the semester. Students at the origination and remote sites did not differ in their reactions toward videoconferencing but there was a significant difference for gender. Women reacted less favorably to videoconferencing. Compared to the beginning of the semester, students reported significantly less positive attitudes toward taking a course through videoconferencing at the end of the semester. There were no significant differences in students' attitudes toward videoconferencing across courses at the beginning of the semester but there were significant differences across the courses at the end of the semester. The results suggest the need for better preparation for both students and instructors.     

Cooler temperatures inductive to locust outbreaks

Ajoint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology and his co-workers from Norway, US and Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells, suggesting that China＇s projected climate warming could decrease the pest＇s numbers. The study was published in Proceedings of theNational Academy of Sciences on 17 September, 2007.     

Exploring Multiplexity: Social Network Structures in a Computer-Supported Distance Learning Class

A computer-mediated group is a complex entity whose members exchange many types of information via multiple means of communication in pursuit of goals specific to their environment. Over time, they coordinate technical features of media with locally enacted use to achieve a viable working arrangement. To explore this complex interaction, a case study is presented of the social networks of interactions and media use among members of a class of computer-supported distance learners. Results show how group structures associated with project teams dominated who communicated with whom, about what, and via which media over the term, and how media came to occupy their own communication niches: Webboard for diffuse class-wide communication; Internet Relay Chat more to named others but still for general communication across the class; and e-mail primarily for intrateam communication. Face-to-face interaction, occurring only during a short on-campus session, appears to have had a catalytic effect on social and emotional exchanges. Results suggest the need to structure exchanges to balance class-wide sharing of ideas with subgroup interactions that facilitate project completion, and to provide media that support these two modes of interaction.     

The Role of Intermediating Institutions in the Diffusion of Electronic Data Interchange (EDI): How Industry Associations Intervened in Denmark, Finland, and Hong Kong

Electronic data interchange (EDI) provides means for interorganizational communication, creates network externalities, requires an advanced information technology (IT) infrastructure, and relies on standards. In the diffusion of such innovations, institutional involvement is imperative. Such institutions contain governmental agencies, national and global standardization organizations, local government, and nonprofit private organizations like industry associations. The last type of organizations we call intermediating institutions. They intermediate or coordinate ("inscribe") the activities of a group of would-be adopters. Unfortunately, little is known of how these organizations shape the EDI diffusion trajectory. In this article we examine one specific type of intermediating organizations?industry associations?and how they advanced the EDI diffusion process in the grocery sectors of Hong Kong, Denmark and Finland. We identify six institutional measures, placed into a matrix formed by the mode of involvement (influence vs. regulation) and the type of diffusion force (supply push vs. demand pull), that can be mobilized to further the EDI diffusion. Industry associations were found to be active users of all these measures to varying degrees. Their role was critical especially in knowledge building, knowledge deployment, and standard setting. Furthermore, institutional involvement varied due to policy and cultural contingencies and power dependencies.     

How Electronic Publishers are Protecting Against Piracy: Doubts About Technical Systems of Protection

The increasing prospects of digital piracy has prompted the perceived need by electronic publishers to adopt technical systems of protection, and governments to reform their copyright laws. This article is a preliminary study of the management of intellectual property by electronic publishers, defined as those involved in the production of online databases, and CD-ROMs. It focuses on three main issues: (1) how electronic publishers view the increasing threat of piracy; (2) the methods of protection employed to protect intellectual property in digital format; and (3) the importance of technological protection of intellectual property in electronic publications. The analysis is based on a sample of 23 UK electronic publishers. The interviews revealed an interesting assortment of protection methods and did not show that technological protection was a preferred way. Instead, the means of protection, in addition to copyright law, comprised niche markets, pricing, trust, bad publicity, and nontechnical and technical means.     

Rough Justice: A Statistical Assessment of ICANN's Uniform Dispute Resolution Policy

Long-standing conflict between domain name registrants and trademark holders prompted the Internet Corporation for Assigned Names and Numbers (ICANN) to create a global, mandatory arbitration procedure known as the Uniform Dispute Resolution Policy (UDRP). The UDRP has been used in 2166 cases involving 3938 domain names as of 1 November 2000. The policy gives the initiator of a complaint, generally a trademark holder, the right to choose which ICANN-accredited dispute resolution service provider (RSP) will handle the case. During the preparation of the UDRP,some feared that complainant selection would lead to "forum shopping" that might bias the results. This article performs a statistical assessment of the forum-shopping thesis and finds support for it. There are statistically significant differences in the various RSPs' propensity to take away names from defendants; there are also major differences in the number of cases brought to each RSP. RSPs who take away names have the larger share of cases. The study examines other variables that might explain differences in market share, such as price, the plaintiff's nationality, or the time taken to decide a case. It finds that nationality and time also are correlated with market share. The study concludes that shopping for a favorable outcome is an important factor in the UDRP.     

Prevalence of soft neurological signs in Chinese people

Prof. Raymond C.K. Chen, a neuropsychologist with the CAS Institute of Psychology, has made novel progress in his studies of schizophrenia. His work has been reported by a recent issue of Behavioural Neurology.     

Monoculture Rubber Plantations Have Negative Ef ects on Controlling Splash Erosion

<正>In Xishuangbanna,one of China’s most biodiverse regions,landscape has changed dramatically during the past three decades due to the conversion of tropical rainforest to rubber plantations.In steep areas,terraces are often constructed before planting rubber trees,which causes two important changes in the soil:the destabilization of soil in the bench terraces and the increased vulnerability of unvegetated riser faces to erosion.Few studies have documented the nature and intensity of erosion on bench terraces.Prof.LIU Wenjie and his colleagues from the Xishuangbanna Tropical Botanical Garden(XTBG)conducted a study in Menglun County(21°5′39″N,101°15′55″E),Xishuangbanna to evaluate the influence     

Chinese Scientists Use Earth Observation Technologies to Study and Protect Wild Camels

<正>Chinese scientists plan to apply Earth Observation technologies to protect the critically endangered wild camels(Camelus ferus).With the help of remote sensing,satellite positioning,geographical information system and wireless sensors networks,they will be able to access the distribution and population of the wild camels and protect their habitats.The project will be carried out by the International Research Center for Wild Camel Conservation,which was jointly established earlier this year by the Institute of Remote Sensing and Digital Earth(RADI)of the Chinese     

More than Skin Deep – Understand Skin Biology by Means of Dermatogenomics

<正>The Paul Gerson Unna Research Group on Dermatogenomics was founded in October 2012 at the Partner Institute for Computational Biology.The ultimate goal of the group is to understand the biology of skin and skin appendages.