How does social media change Chinese political culture? The formation of fragmentized public sphere

Social media promotes a broad discussion about the contemporary public sphere in China. Analyzing the relationship between social media and democratic politics in the unique context of China helps us to rethink a metamorphosis of Habermas’s public sphere model. The study supports the idea that the online public sphere more often than not transforms into a fragmentized formation of the multiple tensions between participatory democracy, journalism transformation and governmental authority. It may be difficult, under a single theoretical framework of civil society, to map out the complexities in Chinese social media. The key point is how a fragmentized structure of the public sphere has been integrated in the power game process of achieving consensus. Based on the special Internet policies and political environment in China, the implication of public sphere theory in Chinese social media is reconsidered.     

Social Media and Citizen Participation in “Official” and “Unofficial” Electoral Promotion: A Structural Analysis of the 2016 Bernie Sanders Digital Campaign

Drawing on interviews with leaders of the effort to promote the 2016 Bernie Sanders U.S. presidential candidacy on social media, this study contrasts the structure and content of various organizational networks to map the hybrid ecosystem of the contemporary digital campaign. While the “official” Sanders organization built applications to transform supporters into a tightly controlled distribution network for its social media messaging, this was complemented by “unofficial” grassroots networks that circulated more informal and culturally oriented appeals. The latter are classified according to the models of organizationally enabled and self-organized connective action in digital social movements, with structural differences in oversight and moderation that suggest varying levels of creative autonomy for citizens and reputational risk for the associated campaigns.     

Research on Chinese social media users’ communication behaviors during public emergency events

In recent years, China has been in a period of social transition. Public emergency events have occurred frequently, and social media have developed rapidly. Social media users in China not only represent traditional audiences but also play an increasingly important role in crisis communication during public emergency events by expressing their views, discussing events with others and sharing information both online and offline. According to national telephone survey data from China, nearly two-thirds of the respondents engaged in communication behaviors during public emergency events, and more than forty percent of those users communicated by social media. Hundreds of millions of Chinese social media users are becoming the driving force of the public opinion field. To better understand social media users’ online information dissemination behaviors and influencing factors, we developed the hierarchical logistic regression model and observed that demographic variables (gender and age), social media use, people’s concerns regarding public emergencies and people’s need to monitor the government’s performance during public emergencies significantly influence online information dissemination behaviors. Our study has practical significance and academic value for understanding the online public opinion field and online political participation in China.     

民用航空甚高频通信系统互调干扰分析与建模研究

本文分析了民航甚高频通信系统的干扰机制,建立干扰分析模型,对民航西安区管甚高频系统的实际干扰问题进行了分析,介绍了无线电频率管理的基本概念,讨论了电磁频谱的概念、特点,论述了电磁频谱检测分析和评估的重要性,并对国内外无线电频率管理的现状做了介绍,深入分析了互调干扰机理,总结了调频广播对民航甚高频系统干扰的类型和产生机制。最后,分别从频率和功率两个维度建立了互调干扰频率分析模型。为民航甚高频通信系统的规划和管理提出了有益的参考。     

分布式智能开放运营架构

首先分析了电信行业所面临的新威胁与挑战,论述了电信运营商转型的优势,给出运营和商业模式转型的方法,之后提出分布式智能开放系统DIOS,重点讨论了系统架构和相关关键技术。     

一种基于公钥加密认证的新协议

给出了一个基于公开密钥加密的认证协议。该协议可以实现通信双方的相互认证,同时产生双方认可的会话密钥,并且会话密钥的产生不需要其他第三方的参与。经过性能分析,该认证协议结构简单,执行效率高。     

网络智能视频监控中视频内容分析的工作机制

本文概述了网络智能视频监控(NIVS)、视频内容分析(VCA)技术的概念、NIVS的网络结构及应用.讨论了网络视频监控中VCA的工作机制,包括VCA系统结构、VCA软件框架、VCA算法模块、VCA分析过程.