The smartphone and its punishment: Social distancing of cellular transgressors in ultra-Orthodox Jewish society,from 2G to the Corona pandemic

Over the past 20 years, the leaders of Israel's ultra-Orthodox (haredi) community carried out an intensive campaign against the diffusion of mobile phones in their enclave society. It included a variety of resistance strategies that escalated in parallel to the consistent increase in mobile phone penetration into the community. If at first the “cellphone danger” was contained by the successful “kosherphone,” a new threat appeared in the form of the smartphone. In this article we explore the severe rabbinic sanctions directed against those who deviate from the communal norm by using a smartphone. We analyze the general “lawfare” strategy of social distancing they adopted, and offer a close reading of the specific religious-law decrees, interpreting them through the historical and legal lens of halakhah (Jewish law). This socio-legal analysis constructs the way haredi leadership understands the role of the smartphone in two contexts. One is the rapidly changing contemporary media environment; the other is the social dynamic affecting this island community, as it encounters the surrounding national and global culture through digital media. The article concludes with a preliminary analysis of the implications of the Corona pandemic on the campaign against the smartphone.     

中国互联网矿业类网站现状调查及分析

在互联网高速发展的今天，矿业作为一个传统行业，也在不断地与新技术相结合，各类功能不同的矿业类网站不断出现，对我国矿业的整体发展起到了极大的推动作用，也使得矿业发展有了一个更新的平台和空间。本文从矿业与互联网相结合的角度，对中国互联网矿业类网站现状进行调查与分析，以促进矿业行业与互联网行业能够更好地结合与发展。     

土木工程学科教研网站的研究与设计

分析了高校计算机辅助教学中从课件—网络课程—学科网站—综合教学平台的发展趋势,提出了当前建立学科教学研究网站在土木工程领域的必要性及其应用形式,具体讨论了土木工程学科教研网站建设的栏目内容和可行的实施方式。     

供热管网中调节装置的选用

本文通过对供热管网常用调节装置在用户自主调节供热系统与传统供热系统中不同作用的分析,指出了不同供热系统和不同调节方式下应选用的调节装置类型。同时指出平衡阀、自力式流量控制阀、自力式压差控制阀等调节装置都属于调节阀范畴,其口径选择是相似的。本文提出了一种调节阀口径选择的新方法,并与调节阀口径的其他几种选择方法进行对比分析,指出调节阀口径选择的关键是合理确定阀门两侧压差。     

暖通空调系统两通调节阀的特性分析

分析了暖通空调系统中两通调节阀的调节特性，讨论了平衡阀对两通调节阀调节特性的影响。     

温州火车站基本站台雨蓬加固与纠偏

本文介绍了站台雨棚应用锚杆静压桩及截柱顶升技术进行地基基础加固补强及其倾斜纠偏,采用碳纤维片材加固混凝土结构构件。     

基于改进HITS算法的电网脆弱集合快速评估

脆弱线路在连锁故障传播中起着推波助澜的作用。为了更加全面地辨识脆弱线路,本文提出一种基于超链接诱导主题搜索算法的电网脆弱线路识别方法。首先,利用线路开断后的潮流转移量与线路容量裕度建立各线路故障转移的相关性网络。其次,利用改进超链接诱导主题搜索算法,计算相关性网络中各线路的权威值和枢纽值。最后,结合基于蒙特卡罗采样的连锁故障仿真工具,在河北南网系统中验证了所提算法得到权威值排名和枢纽值排名的有效性。与现有方法相比,该方法既能准确识别排名高的脆弱线路,又具有计算速度快的优点。     

重塑边界：总体规划改革与地方实践

现阶段总体规划实践面临众多困境,包括编制内容过多、编制时间过长、不适应实际管理需求等,大部分学者提出“减负”是当前总体规划的改革核心。在综合研究相关案例的基础上,提出当前总体规划面临的核心问题是“边界模糊”,这些模糊的边界包括中央与地方的事权边界、政府与市场的作用边界、城市人口规模预测的边界、规划区与中心城区的范围边界、部门之间的规划权利边界,以及大城市与小城市的内容边界。针对这些问题,地方政府通过编制其它规划来替代总体规划,包括战略规划、都市区规划、县域总体规划、三规合一规划等等。这些“规划替代”其实就是地方总体规划改革的一种创新,结合这些创新实践,认为未来总体规划改革的方向是要“重塑边界”,包括放权中央与地方的事权边界,明晰政府的刚性边界与市场弹性边界,模糊城市人口规模边界,扩大规划区与中心城区范围边界,统一部门之间规划边界、区分大城市与小城市的内容边界。     

Performance Impacts of Web-Enabled Retail Services: An Empirical Study

Prior studies suggest that the growth in online retail is attributed to the effective implementation of media-rich and interactive services and functionalities that help overcome the para-social distance between customers and online retail stores. However, few studies have offered empirical evidence that demonstrates the specific impacts these interactive services and functionalities have on the financial performance of online retailers. Using data on the operations and financial performance of the top 500 online retailers in the U.S., this study investigates the impact that website features and functionalities have on sales performance and other intermediate performance measures. Our findings suggest that website features and functionalities have a significant direct impact on sales as well as an indirect impact through intermediate performance measures. Furthermore, our model identifies the specific performance measures that each website feature targets to improve.