In Situ Synthesis of Titanium Nickel Intermetallic Compounds Layer and TiN Coating By Laser Cladding

1 Introduction Laser cladding technology has been widely used in ma- terial processing and tool repairing because it causes little distortion and leads to high quality coatings [1]. Since the appearance ofhigh power diode lasers, the laser cladding is more efficient, economical and flexible[2￣5]. Titanium nickel alloys have excellent properties such as low density, high strength, and high chemical stability, which have promoted their applications in the aerospace, chemical, petrochemical and …     

Color Video Laser Display Technology

1 Introduction Along with the coming of multimedia society, the needs of the large area display are increasing more rapidly. Laser projection display can acquire fully saturated colors, higher contrast ratio and resolution because of the laser characteristics. Since the first practical acous- to- optic television system was developed[1], laser display technology (LDT) has been studied for decades. But the argon- ion lasers used in earlier laser projection dis- play were charecterized by inef…     

A Multilevel Design Method of Large-scale Machine System Oriented Network Environment

The design of large-scale machine system is a very complex problem.These design problems usually have a lot of design variables and constraints so that they are difficult to be solved rapidly and efficiently by using conventional methods.In this paper,a new multilevel design method oriented network environment is proposed,which maps the design problem of large-scale machine system into a hypergraph with degree of linking strength (DLS) between vertices.By decomposition of hypergraph,this method can divide the complex design problem into some small and simple subproblems that can be solved concurrently in a network.     

鐵三角(Audio-Technica)3000系列UHF无线系统增强自动扫频功能

鐵三角(Audio-Technica)宣布对其3000系列自动选讯(UHF True Diversity)无线系统升级,增加了自动扫频功能.该功能可自动搜索并设置最佳信号频率,特别在多套无线系统同时作业时更能体现其优越性,有效避免了频率冲突和互调制.一个频段最多可支持16套这样的系统,3000系列的两个频段最多可支持32套系统.     

净化校园网,内容管理是关键

校园网建设的初衷是让老师和学生能够在浩瀚的网络海洋中自由的学习和工作,但前提是这个网络必须是清净、健康的。随着互联网应用的普及,老师在日常教学和办公中、学生们在学习和娱乐中对互联网的使用越来越多,而互联网上信息良莠不齐、内容是否安全却成了学校和家长最大的担忧。是禁还是管?众说纷纭。而国内领先的内容安全设备提供商北京网康科技推出的网康互联网控制网关则给出了另一种思维:通过对上网行为的管理,实现对互联网内容的控制,从而实现更为完善的校园网安全解决方案。在北京101中学的成功案例中,我们可以了解到网康内容安全解…     

构筑安全网络创造电信新价值

所有的业务提供商,不论是电信运营商、企业还是政府机构,都面临着日益增长的安全性问题。如何识别、分析、应对不同的风险正在成为每个业务提供商必须面对的问题。今天,朗讯全球服务凭借贝尔实验室的先进技术及丰富的实际经验,正在与全球更多的运营商合作,致力于构建安全的网络,协助客户提升运营能力,创造电信新价值。构建安全网络支撑电信业务良好运营一些主流运营商已经意识到,电信网络的全IP化趋势意味着巨大的挑战,要求在网络规划、设计、运营等各个环节充分认识到网络的安全,完善的业务连续性和应急恢复能力将是运营商确保良好运营、…     

Preparation of CeO2 Buffer Layer on Cube Textured Nickel Substrate by Reactive Sputtering

Preparation of CeO_2 Buffer Layer on Cube Textured Nickel Substrate by Reactive Sputtering     

Crystal Structure of Ni_(50)Mn_(29)Ga_(21)Tb_(1.2) Magnetic Shape Memory Alloy at Room Temperature

Crystal Structure of Ni_(50)Mn_(29)Ga_(21)Tb_(1.2) Magnetic Shape Memory Alloy at Room Temperature     

Effects of Subchronic Samarium Exposure on Testicle Tissue of Mice

Effects of Subchronic Samarium Exposure on Testicle Tissue of Mice     

Synthesis and Properties of Ternary Europium Complexes with Aromatic Carboxylic Acid and ,Nitrogen-Containing Heterocyclic Ligand

Synthesis and Properties of Ternary Europium Complexes with Aromatic Carboxylic Acid and Nitrogen-Containing Heterocyclic Ligand