renewable engergy: Wind solar Tidal Wave Ocean Bio Etc. How much energy we gonna need as following years: The unit is of Tera Watts. And how much we can get from the surroundings: theoretically Much of the wind energy are coming from the center of oc…

Sunlight --> Electricity A. E. Becquerel, 1839 . He stated that we can get energy from sunlight. It took a very long time until we made that. Bell labs, 1950s , Solar panel was invented. Efficiency 6% at that moment. Very expensive. Only for satellit…

This content is part of the series: Java theory and practice A brief history of garbage collection Anatomy of a flawed microbenchmark Are all stateful Web applications broken? Be a good (event) listener Building a better HashMap Characterizing thread…

Prefix In the GRE tunnels post I’ve explained how overlay networks are used for connectivity and tenant isolation. In the l2pop post, or layer 2 population, I explained how OVS forwarding tables are pre-populated when instances are brought up. Today…

Why thread pools? Many server applications, such as Web servers, database servers, file servers, or mail servers, are oriented around processing a large number of short tasks that arrive from some remote source. A request arrives at the server in som…

实践出真知,建议不要一味地看Backbone源码和网上解析,自己动手实践吧少年们! 我是一个简单的简直无可救药的小栗子~ ——Silun Wang 我的几个小问题: 1. Rocket介绍没有Todo那么全面清晰,所以理解起来还有一些疑问 2. 对于Backbone.js,Router和history的应用不熟悉,理解起来有困难. 3. MVC是否适合本次短期内的Popush修缮?对于Popush这种SPA,什么样的架构方式更为合理?什么样的修改方式更为合理?哪种MVC框架更适合Popush?…

石墨烯(Graphene)是一种由碳原子以sp2杂化轨道组成六角型呈蜂巢晶格的平面薄膜,只有一个碳原子厚度的二维材料[1].石墨烯一直被认为是假设性的结构,无法单独稳定存在[1],直至2004年,英国曼彻斯特大学物理学家安德烈·海姆和康斯坦丁·诺沃肖洛夫,成功地在实验中从石墨中分离出石墨烯,而证实它可以单独存在,两人也因“在二维石墨烯材料的开创性实验”为由,共同获得2010年诺贝尔物理学奖[2]. 石墨烯目前是世上最薄却也是最坚硬的纳米材料[3],它几乎是完全透明的,只吸收2.3%的光"[4]:…

Multiprotocol Label Switching From Wikipedia, the free encyclopedia "MPLS" redirects here. For the U.S. city, see Minneapolis. Multiprotocol Label Switching (MPLS) is a type of data-carrying technique for high-performance telecommunications netw…

http://www.onjava.com/pub/a/onjava/2001/05/30/optimization.htmlComparing the performance of LinkedLists and ArrayLists (and Vectors) (Page last updated May 2001, Added 2001-06-18, Author Jack Shirazi, Publisher OnJava). Tips: ArrayList is faster than…

转载自:『http://www.cvchina.info/2010/08/31/conference-ranking-byar/』 澳大利亚政府和澳大利亚研究理事会做的,有一定考价值. 会议名称 会议缩写 评级 ACM SIG International Conference on Computer Graphics and Interactive Techniques SIGGRAPH A ACM Virtual Reality Software and Technology VRST A A…