MIM信息生态链及其影响因素灰色关联度研究——以微信信息生态链为例

[目的/意义]移动互联网的快速发展促使移动即时通信(MIM)迅速普及,对MIM信息生态链的影响因素及其关联度进行研究,对促进社会网络信息生态系统的和谐稳定发展具有非常重要的意义。[方法/过程]基于信息生态视角对MIM信息生态链及其影响因素进行分析,运用灰色关联方法对微信信息生态链形成影响因素的关联度进行实证研究。[结果/结论]数据分析结果表明,在宏观层面,对MIM信息生态链用户影响最强的是信息环境因素;在微观层面,对MIM信息生态链用户影响最强的是聊天信息和社交环境。本研究对信息生态环境下MIM产品的功能设计和迭代更新具有一定的参考价值。     

The Medieval Courtly Lesson

No abstract available for this article.     

IP Messenger聊天工具的设计

聊天工具是Linux网络编程众多实例中的一个．以飞鸽传书为例,介绍如何使用TCP,UDP以及IPMSG协议进行编程,实现用户上下线提醒、消息传递和文件传输等聊天的基本功能．     

基于GSM的轨道涂油器远程报警系统设计

为解决轨道涂油器的设备状态远程监控的问题,方便维护人员及时了解设备故障情况,设计一个基于GSM技术的短信息远程报警系统,介绍了以华为公司GTM900A模块与STC12C5A60S2单片机为核心的整体软硬件设计、GSM的标准AT指令与具体软件编程方法,设计的系统运行稳定并应用在轨道涂油器设备上。     

基于云计算的企业即时通信应用部署方案

移动互联时代,大部分第三方即时通信类软件使用者不能完全掌握聊天数据,易造成数据被分析等安全问题。针对企业级即时通信安全问题,提出一套利用云计算特性的即时通信系统。系统采用C/S模式,服务器部署在云端,能够使用户独立部署系统,做到服务器私有,数据信息加密保存,客户端包含移动端和桌面端,数据加密传输。通过常见攻击手段安全分析和系统性能分析,验证了系统安全性与可靠性。该系统已上线使用且运行良好。     

Comparison of an SMS text messaging and phone reminder to improve attendance at a health promotion center： A randomized controlled trial

Objective To compare the efficacy of a short messaging service (SMS) text messaging and phone reminder to improve attendance rates at a health promotion center. Methods A total of 1 859 participants who had scheduled appointments in the health promotion center of our hospital from April 2007 to May 2007 were enrolled in the study and randomly assigned into 3 groups control (no reminder) group, SMS text messaging reminder group and telephone reminder group. Attendance rates and costs of interventions were collected. Results A total of 1848 participants were eligible for analysis. Attendance rates of control,SMS and telephone groups were 80.5%, 87.5% and 88.3%, respectively. The attendance rates were significantly higher in SMS and telephone groups than that in the control group, with odds ratio 1.698, 95% confidence interval 1.224 to 2.316, P=0.001 in the SMS group, and odds ratio 1.829, 95% confidence interval 1.333 to 2.509, P＜0.001 in the telephone group. However, there was no difference between the SMS group and the telephone group (P=0.670). The cost effectiveness analysis showed that the cost per attendance for the SMS group (0.31 Yuan) was significantly lower than that for the telephone group (0.48 Yuan). ConclusionSMS and telephone are effective reminders for improving attendance rate at a health promotion center. SMS reminder may be more cost-effective compared with the telephone reminder.     

新型冠状病毒肺炎疫情期间高校公共体育线上教学模式的探讨--以洛阳师范学院为例

受新型冠状病毒肺炎疫情的影响,全国各高校开展线上教学,由于体育课程的特殊性,构建针对于体育课程的线上教学模式是十分必要。通过文献资料法、数理统计法、访谈法、逻辑分析法等研究方法,对4个常见的线上教学平台进行分析,探讨线上课程对高校公共体育教学带来的影响。并针对高校公共体育课程,构建出即时通信平台和线上教学平台相结合的线上教学模式。