A highly dependable self-adaptive mixed-signal multi-core system-on-chip architecture

In this paper we propose a design of a dependable self-organizing and adaptive mixed-signal SoC. We introduce an Artificial Hormone System (AHS) as a general control mechanism, which addresses the goals of organic computing methodology. Regarding the coexistence of digital and analog components in SoCs, we developed two new AHS implementations, one pure analog approach and one mixed-signal approach. Besides the basics of the hormone based control mechanisms, especially for the analog domain, this paper adapts the AHS upon mixed-signal SoC and presents the evaluation of a completely simulated AHS-controlled SoC. This evaluation verifies the approaches including stability issues as well as upper timing bounds and shows the improvement achieved on the system reliability. We also state the advantages from the hormone system compared to other approaches, as well as the strong points of the different hormone systems to one another.     

分析地理信息系统在钢铁领域应用的必要性

本文针对钢铁行业的现状，分析地理信息系统在钢铁领域应用的必要性。     

The Different,but Interesting Behaviors of Benzyl Systems in the Willgerodt-Kindler Reaction under Solvent-Free Conditions

On the benzyl system, bearing various functional groups, have been carried out the Willgerodt-Kindler reaction to obtain thiobenzmorpholide ( 1 ). The reactions, under solvent-free conditions, were performed in both classical (reflux, room temperature) and nonclassical (microwave) conditions to attempt our elucidation of the reactions pathways. Unlike benzylamine and benzyl mercaptan, benzyl halides give poor result due to the type of amine. The experimental results suggest that the proposed reaction pathway involves the oxidation coupling of benzylic substrates, followed by a thiolation step and an attack of the amine on the thiolated product to give ( 1 ).     

Global Intermedia Agenda Setting: A Big Data Analysis of International News Flow

This study contributes to international news flow literature methodologically, by significantly expanding its scope, and theoretically, by incorporating intermedia agenda-setting theory, through which we reveal how news media in different countries influence each other in covering international news. With a big data analysis of 4,708 online news sources from 67 countries in 2015, the study shows that wealthier countries not only continue to attract most of the world news attention, they are also more likely to decide how other countries perceive the world. However, international news flow is not as hierarchical and U.S.-centric as found earlier. Online-only, emerging media in core countries are not necessarily more impactful in setting the world news agenda than those in (semi)peripheral countries.     

贵州广播电视台播出建设思路以及对未来播出的思考

本文从总体架构、业务流程、网络架构、关键点设计这几个建设要点进行阐述，介绍了贵州广播电视台的播出建设思路；同时通过引入4K播出、IP化、超融合架构、全媒体发布等前沿技术，进行对未来播出技术架构的展望。     

基于虚拟技术的物理仿真实验系统的设计

随着信息技术的高速发展,虚拟现实技术在众多领域得到了广泛应用,本文基于此,采用B/S三层架构,结合Microsoft Visual C++2010及3D技术,构建了基于虚拟技术的物理仿真实验系统。     

调频同步广播小功率多频直放站功放设计

由于遮挡等原因在调频同步广播覆盖不到某些区域,需要小功率发射机进行补点。尤其在隧道内,需要对多个频道信号进行补强。因此设计一种新型的小功率直放站,其可同时发射多频道信号。由于不同频道信号之间不可避免地会产生一定地互调,这对功放的线性度提出了较高的要求。本文设计了一种可基本满足多频道小功率直放站需要的线性功放,并且实际制作了实物。经过测试,实际输出功率≥2.5W,三阶互调抑制比≥40d Bc。     

基于Moodle软件的《三维机械产品设计》课程项目化教学系统构建

针对《三维机械产品设计》课程教学中存在的问题,本文提出模块化的系统设计思想,运用Moodle软件对课程进行系统构建,并对系统构建的功能等进行详细阐述,以此结合现代教育理念提升学生对课程知识的实际运用能力。     

援津巴布韦高清电视转播车视音频系统介绍

本文介绍了我国援助津巴布韦国家电视台高清电视转播车视音频系统的设备选型、系统设计思路。津巴布韦国家电视台目前主要采用标清和模拟系统设备,我国援助的高清转播车,实现了高清、标清的充分兼容,系统可扩展,实用、灵活、安全性。视频系统具有强大的备份功能,包括切换台和矩阵的相互备份,主备调音台的应急备份及录像机的应急备份等。     

某型雷达板级模块测试适配器的设计与实现

某型雷达电路板测试适配器需要对二十多种电路板进行功能测试,被测电路板信号时序复杂,接口定义不统一,给适配器设计带来困难。本文采用通用适配器设计方案成功的解决了问题,实践证明,该适配器设计灵活,大大简化多电路板检测适配器的设计难度,具有一定的工程借鉴价值。