2010年3月30日星期二

FreeRange story - Google移动服务部分被屏蔽

FreeRange user liu monokeroz wanted you to see this:

"Google移动服务部分被屏蔽"

《华尔街日报》报道,Google在标题为"谷歌服务在中国大陆的可用性"网页上公布了相关服务的中断状况。3月28日的报告显示移动服务部分被屏蔽。目前不清楚是哪些移动服务无法使用。

Solidot

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2010年3月29日星期一

FreeRange story - 经典游戏重绘

FreeRange user liu monokeroz wanted you to see this:

"经典游戏重绘"

sweetriver 写道 "Blizzard花了10年把星际争霸从1.x升到了2.x,从20世纪到21世纪,游戏的世界早已今非昔比,但游戏的后浪并无法简单的把前浪拍死在沙滩上,想想那些伴随着我们走过了无数美好时光的FC/街机游戏,马里奥、Sonic、恶魔城、沙罗曼蛇、街霸,如果现在将这些游戏重绘出来,那会是什么样呢?欣赏一下"orioto.deviantart.com"的"Video Game Remakes", 看看这些游戏你都玩过哪些。"

Solidot

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2010年3月28日星期日

FreeRange story - 驾驭中国的网络审查

FreeRange user liu monokeroz wanted you to see this:

"驾驭中国的网络审查"

https访问Google 写道 "MSNBC的一篇报道详细讲述了中国复杂的、无所不包而又模糊万分的审查系统。"

Solidot

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FreeRange story - 肠道微生物与肥胖相关性“代谢综合症”有关

FreeRange user liu monokeroz wanted you to see this:

"肠道微生物与肥胖相关性"代谢综合症"有关"

据3月5日的《科学》杂志报道说,一项新的小鼠研究提示,我们肠道的微生物以及调控这些微生物的我们免疫系统的分支可能与代谢综合症(这是一组与肥胖症有关的代谢问题,他们会增加一个人罹患糖尿病和心脏病的风险)有部分的关系。

Science News

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2010年3月27日星期六

FreeRange story - Miro推出开源视频转换器,Miro 3.0版发布

FreeRange user liu monokeroz wanted you to see this:

"Miro推出开源视频转换器,Miro 3.0版发布"

Miro 视频转换器是可以转换几乎所有格式的视频到.MP4, .OGG(Theora)格式,或者选择特定的播放平台来转换,支持Android phone, iPhone, iPod, 和PSP。 a. Miro Video Converter (MVC) 基于FFMPEG,强大的视频引擎。 b. 转换Theora 视频的话, MVC 使用ffmpeg2theora, 是最新及最好用的ogg 编码器,Firefox 现在支持.ogg 音频、视频。 c. 程序源代码使用GPL发布。 Miro同时也发布了Miro 3.0,新特性包括:字幕;加快了从torrent下载到删除文件的速度;更容易的编辑文件信息;视频最高音量增加至少一倍;启动速度改进和bug修正等等。

Solidot

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2010年3月26日星期五

FreeRange story - Digg与Reddit加入NoSQL阵营

FreeRange user liu monokeroz wanted you to see this:

"Digg与Reddit加入NoSQL阵营"

fenglanchi 写道 "在infoq上看到的: "Digg和Reddit在这个月都宣布了将转向Cassandra ,因为MySQL对他们来说伸缩性不够了。一些人认为MySQL+memchche不再是事实上的伸缩解决方案了。Digg在去年九月宣布了他们转向Cassandra的计划,而这一过程在这个月完成了。仔细比对了其它项目——HBase,Hypertable,Tokyo Cabinet/Tyrant,Voldemort,以及Dynomite——,他们最终选择了Cassandra,出于以下的考虑:每个系统都有它自己的强项和弱项,但是Cassandra综合了各个方面。它提供了面向列的数据存储,因此这相比纯粹的key/value存储又更结构化一些。它通过分布式高可用的点对点集群来运作。尽管目前它的核心功能还有一些欠缺,但相较于其它方案而言,它更接近我们想要的。Digg几乎重建了整个基础设施,跳出了LAMP栈。主要的起因是MySQL,如同任何其它的SQL数据库一样,它是为读取而作的优化,而不能很好的处理写入。 另一个网站,Reddit,曾经出现过memcacheDB相关的问题,一开始他们通过增加更多的RAM来处理,但他们需要一个长久的解决方案是再明显不过的。他们在十天之内完成了向Cassandra的转换,在Cassandra开发者和社区的帮助以及EC2在测试和部署Cassandra的实例方面的支持下,只用了一名开发者就做到了。""

Solidot

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2010年3月25日星期四

FreeRange story - 研究发现中国糖尿病患者接近1亿

FreeRange user liu monokeroz wanted you to see this:

"研究发现中国糖尿病患者接近1亿"

《新英格兰医学杂志》今天发布的一份研究报告(全文)称,中国已成为糖尿病大国,糖尿病患者已经达到9200万人,糖尿病已经成为中国主要的公共健康难题。 北京中日友好医院内分泌科主任杨文英教授领导的研究团队在2007年6月至2008年5月间,对中国14个省和直辖市共46239名20岁或以上的成年人进行了糖耐力测试。接受检测者在空腹的情况下喝下葡萄糖溶液,过两小时后测试其血糖水平。调查结果显示,中国糖尿病患者的男女比例为1比0.84;城市人患者比例比乡镇为高,分别为11.4%和8.2%。研究报告指出,超过一半的患者不知道自己已经患病。南京江苏省人民医院心血管内科主任医师黄峻教授说,人们进食越来越多的高卡路里和腌制食品,同时缺乏运动,使得糖尿病患者增加。

Solidot

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2010年3月24日星期三

FreeRange story - 迎战苹果iPad 索尼电子书降价30美元

FreeRange user liu monokeroz wanted you to see this:

"迎战苹果iPad 索尼电子书降价30美元"

据华尔街日报报道,索尼近日悄悄的将其入门级Pocket Edition阅读器的价格降低了30美元至169美元。据悉这种优惠活动将一直持续到4月4号,这比苹果iPad上市日仅仅晚了一天。 索尼数字内容阅读主管Steve Haber表示降价是为了加大阅读器的市场覆盖面,这种促销方式在业界很常见。有分析师认为,像索尼和亚马逊这种功能比较单一的黑白电子书阅读器需要调低价格来保持竞争力,因为即便是多功能彩色阅读器价格也不会高于500美 元。市场调研公司Forrester分析师James McQuivey预计单功能电子书的价格明年将下降至99美元。

cnbeta

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2010年3月23日星期二

FreeRange story - 视频游戏告别手柄

FreeRange user liu monokeroz wanted you to see this:

"视频游戏告别手柄"

《科学美国人》报道(《环球科学》中文),微软的Natal项目将能让Xbox 360的玩家可以通过自然的肢体运动来控制屏幕上的人物。在机器学习技术的帮助下,玩家们只须在起居室中挥舞手脚,就能控制游戏人物完成踢足球、打手球等动作。 Natal由空间传感器、摄像头和麦克风组成:空间传感器可以利用红外信号创建玩家身体的三维数字模型,摄像头则能精确捕捉诸如面部表情之类的细节,麦克风可用于识别和定位每个人的声音。人体各关节位置的组合几乎有无限多种可能性,编程让游戏系统识别这些组合是一个可怕的计算问题。Xbox 360创新主管Alex Kipman解释说:"肢体的每一个简单运动都是一种不同的输入信号,因此你需要编制近乎无限多的动作响应。"微软没有采用这种预先编制动作响应的方法,他们决定另辟蹊径,教游戏系统像人那样利用经验来实时分辨人体姿态。微软英国剑桥研究院的Jamie Shotton为此设计了一套机器学习算法。它还可以实时识别玩家姿态,并以每秒30帧的速率显示在游戏屏幕上,从而获得连续平滑的画图。

Solidot

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FreeRange story - Google发布安全工具Skipfish

FreeRange user liu monokeroz wanted you to see this:

"Google发布安全工具Skipfish"

Google发布了一个Web应用安全检测工具Skipfish,帮助互联网成为一个更安全的场所。Skipfish运行一系列测试,去探测网站中存在的高、中和低危急漏洞,包括服务端的SQL注入漏洞,Explicit SQL,服务端的Shell命令注入漏洞、XML/XPath注入漏洞,整数溢出漏洞,格式化字串漏洞等。

Solidot

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2010年3月22日星期一

FreeRange story - 字幕组同行大战揭密:商业与理想两难全

FreeRange user liu monokeroz wanted you to see this:

"字幕组同行大战揭密:商业与理想两难全"

"我没什么文化。家里太穷了,初中没读完就跑出来打工了。别的字幕组嘲笑我们时,总会说'他们老大没念什么书'。" 喜欢这么自嘲的是人人影视字幕组 (YYets)的负责人梁良,而他谈到别的字幕组时也毫不客气:"TLF依然老牌,伊甸园(YDY)很强劲,风软(FR)比较全面,破烂熊(PLX)自娱 自乐,其他都是小打小闹的玩意儿,像悠悠鸟(UUBird)这种偷字幕的就别说是字幕组了,丢人。"

cnbeta

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FreeRange story - 茶几从此变简洁 i-Got-Control整合各类遥控器

FreeRange user liu monokeroz wanted you to see this:

"茶几从此变简洁 i-Got-Control整合各类遥控器"

感谢pzgr43 的投递
科技的飞速发展其实或多或少给人们带来了一些不便,就拿客厅里繁杂的遥控器来说,即便是主人也难免有时候会"张冠李戴"。万能遥控凭借以一敌百的身份出现在客厅,那绝对是赢得众人欢呼。可不要觉得这是天方夜谭,在有iPhone/iPod Touch的前提条件下,那是件相当简单的事情。

cnbeta

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2010年3月20日星期六

FreeRange story - Google发布免费网络安全扫描工具

FreeRange user liu monokeroz wanted you to see this:

"Google发布免费网络安全扫描工具"

Google公司于周五发布了一款称为"Skipfish"的自动Web安全扫描程序,以降低用户的在线安全威胁。
Google工程师迈克尔‧扎勒维斯基(Michal Zalewski)称,尽管Skipfish与Nikto和Nessus等其他开源扫描工具有相似的功能,但Skipfish还具备一些独特的优点。 Skipfish通过HTTP协议处理且占用较低的CPU资源,因此它的运行速度比较快。Skipfish每秒钟可以轻松处理2000个请求。

cnbeta

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FreeRange story - 旅行者1号离开太阳系20周年

FreeRange user liu monokeroz wanted you to see this:

"旅行者1号离开太阳系20周年"

cnw 写道 "20年前的1990年2月14日,旅行者1号飞船掠过太阳系中距离地球最远的行星,并将它的照相机转向其身后,以它所处的独一无二的角度拍下了这张太阳系"全家福"。当时旅行者1号距离地球约60亿公里,处于约32度以上的黄道。在这张照片中,水星无法看到,因为它离太阳太近了,火星和冥王星因为太小也淹没于日光中无法分辨。这里是放大后的合照,依次为:金星、地球、木星、土星、天王星、海王星。在拍完这组照片后,任务管理者陆续切断了旅行者1号上的照相机供电,以确保今后的旅程一切顺利。 今天,旅行者1号仍在每天传回数据,科学家预计它将在未来5年离开太阳系的最后边界,向真正的星际空间进发。 "这就是那个蓝点,它在那里。那就是我们的家,我们的一切。在它上面,有你爱的每个人、你认识的每个人、你听说过的每个人。历史上的每一个人,都在它上面度过了自己的一生。也许这张表现我们的世界是如何渺小的照片,是人类愚蠢自负的最好证明。它更表明,我们人类之间必须友善相处,珍惜和保护这个黯淡的蓝点。它是我们唯一的家。"-- Carl Sagan"

Solidot

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2010年3月18日星期四

威廉一世

内容简介:

  威廉一世 WilliamⅠ(1027―1087年),英格兰诺曼王朝第一任国王(1066―1087年在位),绰号"征服者威廉"
  英国国王威廉一世以 "征服者"闻名于世,他一生其实只做了一件大事,这件事后来被称为诺曼征服,他的动机也许只是来源于自己的野心,但却对英国,乃至世界的历史进程产生了重 要影响。
  征服者威廉为人严厉、残忍,而且精力旺盛。有两个因素对威廉的性格及他对历史的影响起了不容忽视的作用。其一是他的私生子身份。他是 他的父亲,绰号为"魔鬼"的罗伯特和被他拐来的农家姑娘阿莱特生下的儿子,但却是唯一的儿子。罗伯特费劲说服了诺曼底贵族,才确立了威廉的继承权。 1035年,8岁的威廉继位,他的私生子身份使他经历了比其他人更多的嘲讽、歧视和挑战,他的三个监护人和老师先后被人杀害。这就铸就了日后威廉冷酷、多 疑的性格。
  另一个因素则是诺曼底的传统。诺曼底公国是法国国王在无奈之下封给入侵的诺曼人的产物,于 841建立。公国实行集权统治,有一支相对固定的军事力量,和相对固定的财政收入,还有着诺曼人固有的尚武和善于航海的传统。这些因素,帮助了威廉的征 服,并影响了他日后在英国建立的一系列制度。
  年轻的威廉一世已经初步显示出他的才智。他先是在法王的支持下于瓦莱杜尼战役大败公国内部的反对 派,巩固了自己的地位,然后利用南部曼恩伯国和布列塔尼公国的内部矛盾,吞并了它们。这时,威廉开始将他的野心投向隔海相望的英格兰。
  当时, 英格兰国王忏悔者爱德华(1042―1066年在位)是威廉的表兄弟,没有子嗣,据说在 1051年威廉访英时曾答应让威廉继承他的王位。而忏悔者爱德华的内弟、另一个王位的有力竞争者哈罗德被困在诺曼底公国时,也曾承认过威廉对英格兰王位的 继承权。但当1066年,忏悔者爱德华去世时,在爱德华举荐下,英格兰贤人会议却选举了哈罗德为国王。威廉闻讯怒不可竭,遂决心发动他的征服战。
   当威廉准备好了渡海作战的人员物资之后,万事俱备,只欠西南风,却一直盼不到,耽搁了四十多天。后来的历史证明,正是这四十多天的等待,改变了力量的对 比,使胜负天平偏向威廉一方。
  当时另一个英格兰王位的挑战者――克努特大帝的后代、挪威国王哈拉尔三世率先在英格兰北部登陆,正在南部沿海守 候威廉的哈罗德,被迫挥师北上迎战。当9月28日,盼到西南风的威廉大军在英格兰南部登陆之时,遇到的是刚刚击败了挪威国王,疲惫不堪且减员严重的哈罗德 军队。10月14日著名的黑斯廷斯战役,哈罗德及两个弟弟均战死疆场,威廉大获全胜。威廉随即率军直逼伦敦,于是年圣诞节加冕为英格兰国王,开始了诺曼王 朝的统治(1066―1135年)
  作为一个外来政权,威廉在初期遭到英格兰人的坚强抵抗。威廉在残酷镇压了各地反抗的同时,也铲除了各地的地 方力量,为他实行集权统治做好了准备,到1171年,各地抵抗基本平息。威廉下令没收英格兰贵族的地产,将其七分之一留给自己,其他的分封给随他来的诺曼 贵族,并仿照诺曼底公国的制度改组了英格兰的中央行政机构和司法机构,同时抵制罗马教皇的压力,顽强地保留了对英格兰各主教的任命权。英格兰形成了当时西 欧国家中最为强大的王权。
  威廉对英格兰内政方面影响最大的举措是他临终前两年所完成的两件事。一是1086年的"索尔兹伯里盟誓",威廉要求 各级封建主都必须向他本人行臣服礼,确立了"我的附庸的附庸还是我的附庸"的原则;另一个则是《末日审判书》,为掌握全国的土地、财产和收入状况,为征收 赋税提供依据,确保王室收入,他派人到全国各地清查。由于他派出的调查员个个如凶神恶煞,调查内容又极细致,使被调查者如履薄冰,好像在接受上帝使者的末 日审判一样,所以调查结果被称为《末日审判书》,其正式名称应是《土地赋税调查书》或《温彻斯特书》。这种大规模的"刮户运动",在中世纪的欧洲是极为罕 见的。
  1087年,由于与法王腓力一世的领土纠纷,威廉加入到与法国的战斗之中,并攻占了巴黎附近的要塞芒特。眼看胜利在即,英雄一世的威廉 却意外堕马而死,否则,他对历史的影响还会更大。但此战揭开了英法两国未来数百年纷争的序幕。
  征服者威廉的征服,对历史影响最大的是,使英国 自罗马帝国时代以来再次被卷入了欧洲中心地区的复杂关系中(此前征服英国的,不过是文明程度比英国还落后的诺曼人),由于英王在法国拥有领地,英法两国王 室成为一对剪不断,理还乱的冤家,此后数百年中两国的交流和碰撞成了西欧政治生活的主题之一。这次征服改变了英格兰的历史进程,甚至连英语都发生了改变, 大量新的词汇加入到英语中。他将许多新事物带入了这个孤岛,如陪审制度,后来英国法律自成体系,就是以此发端的。
  威廉一世将诺曼底传统的集权 统治和军事立国带入了英国,是英国历史上一大转折。在此之前,英国一直是被入侵,被征服的对象,而从他开始,英国转守为攻,以后的战争主要只在别人的国土 上进行,尽管此两项传统在英国以后的发展中逐渐淡化了。

  --以上资料来自百度百科

FreeRange story - 南极200米冰层下发现复杂生命

FreeRange user liu monokeroz wanted you to see this:

"南极200米冰层下发现复杂生命"

科学家本以为在水深200米的南极冰层下,应该只会存在一些微生物。但NASA科学家在南极考察时却意外的观察到了两种复杂生物,其中一种是过去从没见过的新物种,外型很像虾子。 这只颜色看似金黄色、外型像虾子的奇特生物,不断在科学家的摄影机镜头前游来游去,然后停在电线上时间长达2分钟,这个新发现,让科学家大为振奋,没想到小小的微生物,居然能承受的了南极冰河底下的超低温。在海底探勘要结束时,NASA科学家又观察到有触角的水母生物,附着在电线上。

Solidot

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2010年3月16日星期二

Emailing Into Evernote Just Got Better

 
 

Sent to you by monokeroz via Google Reader:

 
 

via Evernote Blogcast by Andrew Sinkov on 3/16/10

One of the many ways to get stuff into your Evernote account is by sending notes to your personal Evernote email address. Today, we launched a big improvement to this functionality that lets you specify the destination Notebook and assign Tags to your emailed notes.

How it works

First, find your Evernote incoming email address. It'll look something like [username].12345@m.evernote.com. The address is located under Account Info in the desktop versions of Evernote, under Settings in Evernote Web, and in the Sync tab of Evernote for iPhone. We recommend adding this email address to your address book or contact list.

Next, try emailing something into Evernote. In the subject line of your email, write the title of the note as you want it to appear in your account. In the same subject line, add one or both of the following:

  • Use @ for notebooks: Use an @ symbol followed by the name of your destination notebook
  • Use # for tags: Use a # symbol followed by the tag or tags you wish to assign. You can have multiple tags just make sure each one starts with an #

For example, Subject: Trip to Florida @travel #expense report

Would create a note titled Trip to Florida in my travel notebook, tagged with expense report.

Notes on this feature

  • This functionality only works for existing notebooks and tags
  • At this time, you cannot create new notebooks or tags with this feature
  • In the subject line, always put the note title first, then add any notebooks or tags
  • This feature will not work for notebook names that contain an '@' or a '#', and it will not work for tags that contain a '#' in their name.

Resetting your email address

Your Evernote email is randomly generated to protect you from spam. If you ever want to change it to another random address, click "Reset incoming email" in the Setting section of Evernote Web. If you do reset it, don't forget to update your address book.


 
 

Things you can do from here:

 
 

2010年3月15日星期一

FreeRange story - 快速切换 User Agent 的 Chrome 扩展

FreeRange user liu monokeroz wanted you to see this:

"快速切换 User Agent 的 Chrome 扩展"

User Agent (以下简称 UA)是一个浏览器的身份标识 ,比如我正在用的 Chromium UA 就是
Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_2; en-US) AppleWebKit/533.3 (KHTML, like Gecko) Chrome/5.0.354.0 Safari/533.3有那么一些变态的网站,他们限制了只有某些特定的 浏览器才能访问他们的内容,这些判断正式基于 UA 的。另外,修改 UA 还可以让我们实现用桌面浏览器访问移动版页面的效果。

cnbeta

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FreeRange story - Web 地理定位(Geo-Location)知识大全

FreeRange user liu monokeroz wanted you to see this:

"Web 地理定位(Geo-Location)知识大全"

锐商企业CMS 写道 "在线地图已经是很平常的应用,Google Map 甚至可以用作驾驶导航仪,然而,这些应用的实现涉及到千丝万缕的艰辛工作,仅仅是定位你现在的位置,就有很多技术,有幸的是,如今在你的 Web 站点中,你可以通过短短的几行代码,获得一个用户的地理位置,本文介绍的是用在 Web 中的各种地理定位技术(完整图文版)。

Solidot

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FreeRange story - Digg用NoSQL替代MySQL

FreeRange user liu monokeroz wanted you to see this:

"Digg用NoSQL替代MySQL"

继Twitter之后,社交新闻网站Digg决定跟MySQL说再见,并替换掉它的大部分基础设施组成,Digg将从LAMP(Linux、 Apache、MySQL和Perl/PHP/Python)架构迁移到基于Cassandra的NoSQL架构。 Apache Cassandra是一套开源分布式数据库管理系统,最初由Facebook开发,用于储存特别大的数据。Cassandra是一个混合型的非关系的数据库,主要特点是它不是一个数据库,而是由一堆数据库节点共同构成的一个分布式网络服务,对Cassandra的一个写操作,会被复制到其它节点上,对 Cassandra的读操作,也会被路由到某个节点上面去读取。 Casandra的使用者现在包括了Rackspace、Digg、Facebook、Twitter、Cisco、Mahalo、Ooyala等等。

Solidot

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FreeRange story - Indexed DB:未来一切Web应用的基石

FreeRange user liu monokeroz wanted you to see this:

"Indexed DB:未来一切Web应用的基石"

锐商企业CMS 写道 "未来的 Web 应用是什么样子,虽然还不清晰,但浏览器厂商们认为,未来 Web 应用的基石是一种叫做 Indexed DB 的本地存储技术,这个由 Oracle 发起,最初叫 WebSimpleDB 的本地存储技术,目前只是一个原型,但已经获得微软,Mozilla,Google 等重要厂商的认可。他们还寻求将 Indexed DB 提交 W3C 成为标准。

Solidot

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FreeRange story - 西厢计划原理

FreeRange user liu monokeroz wanted you to see this:

"西厢计划原理"

4G Space博客简要介绍了西厢计划的原理,认为修复墙的漏洞并不是一件很容易的事。西厢计划背后的中国黑客是从TCP 协议中找到了可用的方法:" 可以说处理这些七七八八的漏洞是非常困难的,迫使墙的设计者'拆东墙,补西墙'。这样补来补去,外表看起来好像很牛逼的墙,其实有很多本质上无法简单修补的漏洞,其中有一个致命的,就是 TCP 连接状态的判定问题。 出于入侵检测系统这种设计的局限,墙没有,也没办法准确判定一条 TCP 连接的状态,而只是根据两边收到的数据来'推测'连接的状态....西厢计划的实现,因为依赖于 Linux 内核模块 netfilter, 在 Linux上如鱼得水,但往其他平台的移植可能是个亟待解决的问题。"根据邮件列表,开发者已经发布(zip)了Windows移植测试版(仅适用于32位操作系统)。

Solidot

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2010年3月14日星期日

FreeRange story - 功耗仅5W的国内第一台插座式计算机BTblug

FreeRange user liu monokeroz wanted you to see this:

"功耗仅5W的国内第一台插座式计算机BTblug"

感谢知攸200 的投递
本来是打算配一台超低功耗PC机,用于做临时WebService。在网上查来查去,怎么配 都不满意,功耗始终很难突破50W大关。在翻阅了大半低功耗PC资料后,终于发现了一国外产品Sheevaplug,据说功耗只有区区5W不到。正当我兴奋不已时,却发现,这款产品是用的ARM架构。不过,我不死心,跟着这条线一路查下去,无意中被我看到了BTplug这款产品。

cnbeta

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FreeRange story - Google向所有人开放Apps Script

FreeRange user liu monokeroz wanted you to see this:

"Google向所有人开放Apps Script"

Google宣布向所有人开放Google Apps Script,之前它只向Google Apps用户提供。Apps Script给予用户一个强大而可塑的脚本环境,让用户为 spreadsheets、sites、calendars等Google Apps添加功能;或定制和创作跨不同应用程序的脚本,比如向一个电子表格中的地址列表发送电子邮件或日历事件;自动化重复任务等等。Google官方博客的 脚本样本。

Solidot

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2010年3月11日星期四

FreeRange story - 人体肠道菌群元基因组研究

FreeRange user liu monokeroz wanted you to see this:

"人体肠道菌群元基因组研究"

人体内居住的微生物细胞总数估计高达100万亿,是人体本身细胞总数的10倍。编码微生物细胞的基因数量估计是人类基因的100倍。这些细菌大部分寄生在人的肠道中,通称为肠道菌群,它们通常被称作"人体肠道元基因组"。DNA24 写道 "由华南理工大学"基因组科学"创新班学生李俊桦、谢寅龙作为署名作者,深圳华大基因研究院主要承担的《人体肠道菌群元基因组参考基因集的构建工作(全文)》研究,在《自然》杂志上以封面故事形式发表。" 研究人员收集了124个来自于欧洲人肠道菌群的样本,采用了新一代大规模高通量的测序技术进行深度测序,产出近6千亿的碱基序列。经过序列组装和基因注释分析,从中获得330万个非冗余的人体肠道元基因组的参考基因,约是人自身基因的150倍。这个基因集中包含了绝大部分目前已知的人体肠道微生物基因,但更多的是目前未知微生物的基因。从这个基因集中可以估计人肠道中存在约1000到1150种细菌,平均每个体内约含有160种优势菌种,并且这些细菌是绝大部分个体所共有的。这项研究成果有助于揭示肠道菌群的基因组成与肥胖、肠炎病的关系。

Solidot

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2010年3月10日星期三

FreeRange story - 飞思卡尔展示运行Chromium OS的平板设备

FreeRange user liu monokeroz wanted you to see this:

"飞思卡尔展示运行Chromium OS的平板设备"

飞思卡尔今天展示了一台运行着Google Chromium OS的7英寸平板,据称它的售价低于200美元。
这款概念产品由飞思卡尔的软件开发部门负责演示,基于公司的i.MX51芯片进行开发,支持硬件加速和HTML5视频,并兼容Android应用。它带有512M RAM、蓝牙、GPS和Wi-Fi,3G网络通信和RF4CE家庭自动化标准支持,内置4GB存储器,并支持microSDHC扩展,预计改进后的OEM产品将出现在今年夏天。

cnbeta

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FreeRange story - OPPO Enjoy电子书阅读器产品参数已经全部公布

FreeRange user liu monokeroz wanted you to see this:

"OPPO Enjoy电子书阅读器产品参数已经全部公布"

OPPO今天公布了广受关注的OPPO Enjoy首款Android电子书的各种技术参数和官方的图库,由此我们终于可以第一次近距离地观察到这款产品的全貌。
这款电子书采用了6英寸e-ink电子墨水屏,运行Google Android,支持各种常用格式,拥有轨迹球、翻页按钮,触控感应等多重操控方式,内置2G存储器,1280MAH容量的电池,并有经过全新设计的"ReadFree"操控界面,以下是参数和图库:

cnbeta

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FreeRange story - 国内开发者发布西厢计划

FreeRange user liu monokeroz wanted you to see this:

"国内开发者发布西厢计划"

stranger 写道 "西厢计划提供一组工具,使得用户在一次设置之后,能够以普通程序直连目标网络,而避免防火墙的大部分影响。其命名是为了向中国古典文学史上翻墙的先驱者张某致敬。西厢计划现在已经达到alpha可用状态,在初步的测试中可以让用户以普通浏览器无障碍地直连 Youtube。"

Solidot

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FreeRange story - 科学家从巨鸟蛋化石中提取出DNA

FreeRange user liu monokeroz wanted you to see this:

"科学家从巨鸟蛋化石中提取出DNA"

研究人员从已经灭绝的巨鸟蛋化石中成功提取出DNA。 巨型鸟类如恐鸟、雷鸟、象鸟已灭绝,它们身后都留下了蛋壳化石。但从蛋壳上提取出有用的DNA一直困难重重,在此之前一直无人能成功从蛋壳上恢复DNA。现在澳大利亚默多克大学的进化生物学家Michael Bunce和研究人员Charlotte Oskam,与一个国际研究小组合作,通过改进技术成功的从蛋壳上分离出DNA,这项成就意味着分布广泛的蛋壳化石能成为研究古代遗传物质的新来源。 Bunce称,他们利用了原先设计为从骨头里提取DNA的技术。Oskam和Bunce从多种灭绝的巨型动物蛋壳上成功分离出DNA,其中包括新西兰的巨型恐鸟,1.9万年前的澳大利亚食火鸟,以及马达加斯加的象鸟,象鸟蛋是至今已知最大的鸟蛋,其体积是鸡蛋的160倍。

Solidot

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2010年3月9日星期二

FreeRange story - Google的计算能力使翻译技术获得新生

FreeRange user liu monokeroz wanted you to see this:

"Google的计算能力使翻译技术获得新生"

jdk137 写道 "《纽约时报》报道,Google已成为翻译领域的领头羊,这是Google向搜索之外的领域扩张时取得的为数不多的没有争议的胜利之一。Google在商业翻译领域的异军突起展现了Google运用强大计算能力解决复杂难题时的天赋异禀。当Google把所有用于网络搜索的数据中心整合到一起时,就拥有了世界上最强大的计算机。Google利用这台计算机突破了翻译技术的"音障"。上个月,Google宣布将运用翻译技术于图像分析中,允许用户浏览德语简介的手机图片时得到及时的英文翻译。在上世纪九十年代中期,研究者们就开始青睐这种所谓的统计法。他们发现当给计算机成千上万的文章以及对应的人工翻译时,计算机可通过学习对新的文章进行相当准确的翻译。但实现这项技术需要大量的数据和惊人的计算能力,而这些恰恰是Google所长。Google的翻译服务已能比较好地传达一则外文新闻的主旨,它已成为广大用户的便捷翻译工具。"

Solidot

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FreeRange story - 赫歇尔天文台在猎户座发现生命信号

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"赫歇尔天文台在猎户座发现生命信号"

赫歇尔太空天文台在猎户座星云中发现了潜在的生命有机物的化学指纹。猎户座星云是银河系附近的一个恒星育婴室。 赫歇尔天文台远红外线设备获得的详细光谱提供了生命在太空中形成的重要信息。该光谱属于赫歇尔天文台于2010年1月恢复正常运作后拍摄的第一批光谱之一,之前它因为技术故障而罢工。2009年8月赫歇尔天文台电子系统经历了未曾预及的电压突波,其原因可能是宇宙高能粒子,导致仪器终止工作。2010年1月14日,赫歇尔天文台成功启用了备份的电子系统,在经过一系列测试和检验之后,仪器开始恢复工作。

Solidot

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FreeRange story - 传思科重大产品实为全能机顶盒

FreeRange user liu monokeroz wanted you to see this:

"传思科重大产品实为全能机顶盒"

科技博客SiliconAngle预计,思科周二将发布的重要产品其实是一款与苹果AppleTV类似的机顶盒。 SiliconAngle预计,该产品采用Scientific Atlanta的技术开发而成。思科四年前收购了Scientific Atlanta,并且已经面向有线电视运营商出售了该公司的机顶盒产品,但仍未利用这一平台推出消费级产品。

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FreeRange story - MIT技术评论评最佳创新公司 20家IT企业入选

FreeRange user liu monokeroz wanted you to see this:

"MIT技术评论评最佳创新公司 20家IT企业入选"

在业界久负盛名的技术媒体《MIT技术评论》3月/4月期评出了本年度的最具创新力50家企业(简称TR50),涵盖网络、能源、材料、生物制药和计算机五大类。有20家IT企业入选。尚德成为中国企业中唯一入选的企业。让我们从入选名单和理由中寻找行业发展趋势的关键信息。

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2010年3月8日星期一

FreeRange story - 经典家用游戏机启动画面Top10

FreeRange user liu monokeroz wanted you to see this:

"经典家用游戏机启动画面Top10"

现在的我们都已经身处在TV游戏的次世代,以PS3 Xbox360和Wii三分天下的电视游戏市场空前的繁荣。如果你是一个在电视游戏中浸淫多年的骨灰玩家,或许下面的一些主机启动画面会让你找到一份儿时打电动的感动,虽然现在游戏画面如此的炫目但所谓初恋最美,当时8-bit带来的欢乐或许更值得回味。

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FreeRange story - 赫歇尔天文台在猎户座发现生命信号

FreeRange user liu monokeroz wanted you to see this:

"赫歇尔天文台在猎户座发现生命信号"

赫歇尔太空天文台在猎户座星云中发现了潜在的生命有机物的化学指纹。猎户座星云是银河系附近的一个恒星育婴室。 赫歇尔天文台远红外线设备获得的详细光谱提供了生命在太空中形成的重要信息。该光谱属于赫歇尔天文台于2010年1月恢复正常运作后拍摄的第一批光谱之一,之前它因为技术故障而罢工。2009年8月赫歇尔天文台电子系统经历了未曾预及的电压突波,其原因可能是宇宙高能粒子,导致仪器终止工作。2010年1月14日,赫歇尔天文台成功启用了备份的电子系统,在经过一系列测试和检验之后,仪器开始恢复工作。

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2010年3月7日星期日

FreeRange story - 编程到底出了什么问题

FreeRange user liu monokeroz wanted you to see this:

"编程到底出了什么问题"

Shawn the R0ck 写道 "在最近的访谈中,Donald E Knuth写到"今天非常多的编程方式根本没有任何乐趣可言,仅仅只是在魔法咒语中堆砖头---整合其他人的代码到现有的项目中"。遵循严谨黑客伦理的程序设计师都在对浪费在解决库依赖关系和打补丁的"编程"方式感到叹息。 Reddit和Hacker News都在讨论编程到底出了什么问题这个话题."

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2010年3月6日星期六

FreeRange story - 137年的《科技新时代》杂志摆上网

FreeRange user liu monokeroz wanted you to see this:

"137年的《科技新时代》杂志摆上网"

DNA24 写道 " 《科技新时代》杂志(Popular Science)与Google合作,将137年所有文章摆上网,免费浏览。"

Solidot

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2010年3月5日星期五

Fwd: How do I back up my e-mails from free online mail accounts?

---------- Forwarded message ----------
From: CNET TechSpecials <newsletters@cnet.online.com>
Date: Fri, 5 Mar 2010 18:44:03 -0800 (PST)
Subject: How do I back up my e-mails from free online mail accounts?
To: xavier.liu@qeweb.com

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March 5, 2010
How do I back up my e-mails from free online mail accounts?

Dear CNET members,

Happy Friday! Before we dive into the question from Isabelle on how to
back up e-mails from Web-based e-mail services, I'd like to introduce
a new forum called, CNET to the Rescue. Now let me point out that this
is not a technical troubleshooting forum (as we already have plenty of
those), but a consumer advocacy forum where you can raise issues about
unfair practices by technology companies, call out misleading
advertisements, and talk with other members and CNET editors about
these issues. This forum is hosted by CNET editor Rafe Needleman and
he has his ear out for you. So, if you have some concerns or issues
you'd like to discuss with him and other members, bring them on. Here
is Rafe's welcome note to give you an idea what this forum is all
about. Enjoy!

Now, moving along to backing up those Yahoo Mail and Gmail e-mails.
Well, Isabelle, our community members has come through for you in a
huge way, giving you a lot of advice on how you can back up your
Web-based e-mails. The most popular advice suggests using POP3 (Post
Office Protocol 3) that allows you to link your online e-mail account
to an e-mail client like Outlook, Outlook Express, or Thunderbird. It
will allow you to transfer all your e-mails to your computer's hard
drive, and then you can decide what you want to do with them. Most
online e-mail clients offer this service; some are free and some come
at a small cost. It's a great, simple process, and many folks use this
method. For those of you who aren't familiar with POP3 and what it
does, here is fairly simple explanation from Answers.com.

There are a few other methods mentioned by members, ranging from the
traditional copying and pasting important e-mails to setting up an
auto forwarding rule to another e-mail address. So give the answers
all a read and find what works best for you. I have a few selected
answers in the Q&A section to start. I hope they help! Thanks everyone
for your time and contributions. Have a great weekend!

Cheers!
- Lee

Got suggestions? Send me an e-mail: messageboards@cnet.com

[image: Lee Koo]
Lee Koo
CNET Community manager
Last week's question
How do I back up my e-mails from free online Yahoo Mail and Gmail accounts?
[image: Question]Over the past several years I have been depending on
free online Yahoo mail and Gmail accounts for my everyday e-mails.
I've been lucky thus far of not losing anything yet, but I'm weary
about it as friend told me that free email services aren't trustworthy
as anything can go wrong and there are no recourse if my accounts were
suddenly to disappear or somehow get compromised because they are
free.

Now that this has got me really concerned, I would like to back up all
my e-mails from these free online e-mail accounts, but I really have
no clue as to how to go about it. Can your members help me out and
give me some step-by-step instructions on how I can get this
accomplished for both Yahoo mail and Gmail? I would like to be able to
store them on my computer and retrieve them once I have established a
nonfree online service. I would be most grateful for this help.

-- Submitted by: Isabelle W.

[image: Answer]Featured member solutions
for last week's question:

 "Backing up online e-mail "
-- Submitted by: TMSAssoc

 "Gmail offers these options for backing up data "
-- Submitted by: davidwinget

 "Archiving Yahoo e-mail "
-- Submitted by: JamesJ

 "Methods for backing up free online e-mail "
-- Submitted by: caue.rego

 "POP3"
-- Submitted by: darrenforster99

 "A lot to say, true/false "
-- Submitted by: DADSGETNDOWN

 "Free e-mail backup "
-- Submitted by: RayGauthier

 Read all member contributions

 Thanks to all who contributed!

Previous questions and answers
1. Help me keep my Windows 7 machine running lean, clean, and mean

2. What's your take on online backup services?

3. Please help me find a cost-effective way to secure my flash drive

4. Windows XP: How do I completely remove items in my start-up folder?

5. I accidentally deleted the files on my SD card. How can I recover them?

 All previous Community newsletters
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4. Lens quality in dSLR cameras kits any good?

5. Mobile phone sales taxes in California--is it fair?

6. How can I send a file of 673MB via email?

7. What is the typical lifespan of a desktop and its parts?

8. New TiVo DVR, few changes, no surprises, little disappointed

9. Wanting to upgrade from analog to digital TV

10. Recent Windows updates causing BSOD

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3. Mac vs. PC in the graphic design context

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2. News - March 5, 2010

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5. Vulnerabilities and fixes - March 5, 2010

 More from the security forum
Check out next week's question:
My computer fan is kicking on high every few minutes, help!
[image: Next week's question]I am at my wit's end. I'm going to try
and be concise and to the point. My HP Pavilion desktop (Windows XP
SP3 Media Center edition) got a nasty virus, and the local shop wiped
the hard drive and reinstalled it for $90 flat fee. It will never be
as it was before the virus, but I expected that. The real problem is
the computer's fan; it kicks on high every few minutes and then goes
back to normal speed. There is no dust or dirt inside the case and the
fans are clean. I took it to another tech who reset the CMOS and
didn't charge me anything. The fan never kicked up on high when it was
in his shop, but when I got home it started up again. It's like when
you call the TV repairman and it works perfectly while he's at your
house. I have run all my scans, virus, spyware, malware, etc.
Everything is clean. I don't use my computer for any work, just
e-mail, news, a few online games and general stuff (no Facebook,
Twitter, adult sites). I just hope it's not the processor and I've
never had this symptom before. Thanks for any help at all.

-- Submitted by: Betsy in North Carolina

  Know the answer? Click here to submit it!

Have a tech-related question?
Click here to e-mail us on one of these topics:

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1. Fake virus scan

2. What's the advantage of Flip type camcorders vs. digital camera w/video?

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FreeRange story - Google与洋葱头

FreeRange user liu monokeroz wanted you to see this:

"Google与洋葱头"

就代码而言,在Google的帮助下,洋葱头Tor有了很大的改进。保持隐私和绕过在线审查对软件开发者和贡献者都是一个相当忙碌的挑战。Google Summer of Code™ 让开源社区的学生和项目引导者在每年的夏天花三个月的时间合作写代码贡献出来(并且活动一定的资助金)。2009年的夏天洋葱头项目就很幸运在一群学生的帮助下写了不少代码来改进现有项目和帮助用户。

Solidot

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FreeRange story - 科学家确认恐龙灭绝是小行星撞击地球所致

FreeRange user liu monokeroz wanted you to see this:

"科学家确认恐龙灭绝是小行星撞击地球所致"

科学家说,现在他们可以明确支持小行星撞击地球导致恐龙绝迹的理论。长期以来科学界对导致恐龙和地球上一大半动物物种灭绝的原因一直有争议。一些科学家认为是小行星撞击地球导致恐龙消亡,另一些科学家认为是火山爆发的原因。最新的研究发现为小行星撞击论提供了证据。报告发表在最新一期的《科学》杂志上。 由41名专家组成的一个国际科研小组所作的研究结果发现,6千5百万年前一颗小行星在墨西哥海岸撞击地球。撞击引起了地震和火焰风暴,还把几十或几百亿吨的物质抛入大气层,遮挡住太阳的光线。研究人员得出结论,现在终于可以把恐龙灭绝的原因归咎于小行星对地球的撞击了。导致恐龙灭绝的撞击还为包括人类在内的许多新的物种创造了进化的环境和条件。

Solidot

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FreeRange story - Google 云计算的灾难恢复技术

FreeRange user liu monokeroz wanted you to see this:

"Google 云计算的灾难恢复技术"

锐商企业CMS 写道 "灾难恢复是个令人不快的话题,但必须面对,拿一个公司的邮件系统为例,有的公司会对过去的邮件进行备份,备份的频率或许是每日或每周,灾难发生后,将备份的数据恢复到系统,尽管可以恢复一些,但这种周期性的备份只保证已备份的数据的安全,最近一次备份到灾难发生之间的数据却是彻底没有了。 在大一些的公司,或许会使用 SAN 进行备份,SAN 很贵,而且,当整个数据中心出现故障的时候,即使 SAN 也不保险。因此,那些真正有实力的大公司,会在异地创建一个新的数据中心,并创建一套完整的异地备份。 然而天常不如人意,有时候,即使身处两个位置的两个数据中心也会同时挂掉,因此,更有实力的公司会将两个数据中心的物理距离尽可能拉大(越远意味着成本越高),然而又带来管理上的问题,两套 SAN 之间要传输 TB 级的数据,需要非常高的带宽,不管怎样,这些都与成本有关,冗余越多,成本越高。

Solidot

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FreeRange story - 英特尔将Atom处理器优化为家庭存储服务器用途

FreeRange user liu monokeroz wanted you to see this:

"英特尔将Atom处理器优化为家庭存储服务器用途"

当地时间周四,芯片厂商英特尔发布了首款为家庭、中小企业存储市场准备的Atom处理器--单核D410,双核D510,它们均工作于1.6GHz下,此外英特尔还为它们准备了一个82801IR I/O控制器。
这款处理器支持Windows Home Server和Linux系统,可以在原有Atom基础上再减少50%的功耗--这种环境下的存储服务器通常不需要太强大的CPU性能。

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2010年3月4日星期四

Proxmox VE 1.5: combining KVM and OpenVZ

Distributions
News and Editorials
Proxmox VE 1.5: combining KVM and OpenVZ
February 24, 2010
This article was contributed by Koen Vervloesem
Now that virtualization is widespread, it becomes more important to have an easy-to-use, turnkey solution. The big hypervisor vendors are all working on their own virtualization management solutions, but one can also find interesting solutions in independent open source projects. One of these projects is Proxmox VE (Virtual Environment). Its unique selling point is that it marries the KVM hypervisor with OpenVZ virtual containers.

Proxmox VE makes it really easy to deploy a virtualization server. Users can download the ISO, burn it to a CD, put it in their server, answer a few questions the installer asks, and start serving virtual machines right away. Just be aware that the installer doesn't allow customizing the partitioning setup; it claims the whole hard drive. The system runs headless and can be configured using a web interface. Proxmox VE requires a 64-bit CPU with Intel VT or AMD-V instruction set and at least 2 GB of RAM if the user plans to run more than a handful of virtual machines.

Proxmox VE 1.5 is a heavily tweaked Debian Lenny (5.0) x86_64 distribution that partitions the hard drive with LVM2, installs a web-based management interface, and is optimized for use as a virtualization environment. Proxmox uses Debian Lenny's main and contrib repositories, as well as the security.debian.org repository with security updates. It adds its own download.proxmox.com repository that supplies custom kernels and some management tools. Proxmox VE is GPLv2-licensed and the German company Proxmox Server Solutions offers commercial support.

KVM and OpenVZ

Users can launch two sorts of virtual machines. First, one can use KVM for full virtualization. This allows the user to run a lot of operating systems, such as Windows, Linux, the BSDs, etc., because the operating system in the virtual machine runs on virtualized hardware that looks like real hardware. Proxmox VE also supports KVM with paravirtualization for device drivers to improve I/O performance, e.g. with paravirtualized network drivers for Windows guests.

The other flavor consists of OpenVZ containers, a form of operating system-level virtualization. Applications within a container appear to be on a standalone system, because processes in different containers are completely isolated from each other. Although each container appears as a standalone operating system, in reality they share a single instance of the Linux kernel: the Proxmox KVM/OpenVZ kernel. This also means that OpenVZ containers are lightweight. Users can download so-called OpenVZ templates, which are essentially gzipped tar files that contain a pre-installed image of a Linux system.

The combination of KVM and OpenVZ in one kernel is a major feat. It took an explanation by Proxmox VE's project lead Martin Maurer for your author to understand the challenges. Proxmox publishes three kernel branches, each one with minor feature differences. By default, Proxmox VE uses a 2.6.18 kernel, based on the latest Red Hat Enterprise Linux 5 kernel with the stable OpenVZ patches (which are also based on the 2.6.18 kernel) and backported KVM patches. The Proxmox developers added some minor driver updates and did a lot of integration and testing to combine both virtualization technologies in one kernel.

The second kernel version that Proxmox maintains is 2.6.24, based on the Ubuntu 8.04 (LTS) kernel but with driver updates and KVM patches. This kernel only exists for historical purposes, because Proxmox VE 0.9 beta until 1.4 used 2.6.24. However, the OpenVZ part is no longer maintained by the OpenVZ project, so while this kernel has KVM and OpenVZ support, all OpenVZ users should use the 2.6.18 kernel in Proxmox VE now. Last but not least, Proxmox VE also maintains a 2.6.32 kernel, based on the Ubuntu 10.04 (LTS) kernel but with some additional driver updates. It lacks OpenVZ support (because the stable OpenVZ version doesn't support this kernel), but it is interesting for users that want to have the latest KVM features, such as KSM (Kernel Samepage Merging).

Hands-on virtualization

 
Administering Proxmox is done by using the web interface, which is also lightweight. It doesn't use the Java-based Tomcat like VMware Server does, but just Apache with HTML pages that use the Prototype JavaScript library and the SOAP::Lite Perl library. The user can manage virtual machines, migrate them to other hosts, backup the system, monitor all running virtual machines, and do a slew of other management tasks.

Before starting a virtual machine, the user has to upload the ISO file or OpenVZ template. In the web interface, this can be done by clicking on "Virtual Machines - Create", selecting the image from local storage or from the host machine's CD-ROM drive, and then filling in the required information. The other solution is to scp the image over to /var/lib/vz/template/cache (for an OpenVZ template) or /var/lib/vz/template/iso (for an ISO image to start a KVM machine). But the user can also download pre-defined OpenVZ templates from within the web interface.

If the user wants a graphical window for a virtual machine, this can be done too: the Proxmox VE web interface has an embedded Java applet which launches a VNC console window on the client machine. Of course users are free to use their own favorite VNC client.

Proxmox VE has an integrated backup feature: VZDump, a utility that makes consistent backups of running virtual machines, be it OpenVZ containers or KVM guests. To make this possible for an online guest without downtime, VZDump uses the LVM2 storage to create a snapshot of the guest's virtual disk. The user can configure backups from within the web interface by defining the location of the remote storage and scheduling the cron job for the backup.

Users can also create a Proxmox VE Cluster that consists of one master node and one or more slave nodes, all running Proxmox VE. Users can then manage the virtual machines on all their Proxmox VE servers from one web interface, but they can also migrate their virtual machines between hosts, even live (that is, without recognizable downtime). Live migration is a standard feature of both KVM and OpenVZ, and both are supported in Proxmox.

OpenVZ containers have to be stored on local storage, but for KVM guests Proxmox VE adds a flexible storage model. From within the web interface, users can add iSCSI targets, NFS shares, LVM groups on shared storage, and locally mounted Samba shares. Thanks to the Debian base it also supports ATA over Ethernet (AoE) and replicated DRBD devices.

Ready-made appliances

The Proxmox developers have released several virtual appliances, which are ready-made OpenVZ templates that can be downloaded directly from within the Proxmox web interface. There are operating system appliances with a standard Debian 4.0, 5.0 or 6.0 installation, an Ubuntu 8.04 installation, a CentOS 4 or 5 installation or a Fedora 9 installation, but there are also so-called application appliances. These are tailored to a specific task, such as the Proxmox Mail Gateway, Acquia Drupal, SugarCRM, Zenoss, MediaWiki, Joomla!, WordPress, Zimbra, and so on. Proxmox has also created a script to automate the creation of custom OpenVZ appliances based on Debian, the Debian Appliance Builder.

Roadmap

Given that Proxmox VE has only been public for less than two years (0.9 was released in April 2008), the project has already an impressive feature list. Additionally, the developers have plans for much more: the roadmap for the 2.x releases mentions high-availability for KVM guests, advanced user management, more pre-built virtual appliance downloads, resource monitoring and a firewall. The future also promises a more pleasant marriage of KVM and OpenVZ, Martin explains:

Our internal development for Proxmox VE 2.x is already working on top of Debian Squeeze. As Squeeze doesn't boot from a 2.6.18 or 2.6.24 kernel, we'll need 2.6.32. Luckily, OpenVZ project lead Kir Kolyshkin announced that the next stable OpenVZ kernel will be 2.6.32 based. They even try to get their kernel into Squeeze. So we plan to get OpenVZ in our 2.6.32 kernel for Proxmox VE 2.x. It also looks like 2.6.32 is the next long-term maintenance kernel and there are also rumors that it will be used in Red Hat Enterprise Linux 6. Additionally, LXC (Linux containers) is under our radar and this looks quite interesting for us because it is in the mainline kernel.
All in all, Proxmox VE is a nicely integrated solution to run and manage virtual machines: what sets it apart from many other solutions is not only that it runs both KVM and OpenVZ, but also that it's not just a web interface or just a kernel that you install on an existing Linux installation. Instead it's a whole collection of components that gives the user a running system in a few minutes. So even for users that don't need both KVM and OpenVZ, Proxmox should be on their shortlist of virtualization platforms to try.

FreeRange story - 戴尔推出“零客户端”企业设备 - FX100 Zero Client

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"戴尔推出"零客户端"企业设备 - FX100 Zero Client"

戴尔首次推出了一款名叫"零客户端"的企业设备,第一个型号是FX100 Zero Client,它没有处理器、没有硬盘、也没有强劲的显卡,它只能跟随一个虚拟的远程终端服务器运行。
该系统目前可以和戴尔Precision R5400机架式工作站配对工作,利用VMware的通信协议实时传递虚拟化桌面的画面,目前可以让客户端的规模达到数以万计。

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FreeRange story - 华硕公司在CeBIT2010上展示其DR900电子阅读器产品

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"华硕公司在CeBIT2010上展示其DR900电子阅读器产品"

华硕公司在近日举办的CeBIT2010会展上展示了其即将推出的电子阅读器产品E-Reader DR-900 ,这款产品采用9寸黑白电子纸显示屏设计 ,显示屏由SiPix公司开发。DR900的存储容量为2/4GB可选,电池电量则可供 用户连续阅读10万页电子书内容 。

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FreeRange story - 鲍尔默最新必应,谷歌,Xbox,Windows Phone精彩问答集整理

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"鲍尔默最新必应,谷歌,Xbox,Windows Phone精彩问答集整理"

错过了昨天微软CEO史蒂夫鲍尔默在搜索引擎营销大会 (Search Marketing Expo West )问答环节中"精彩表现"的朋友们注意了,网上目前已经登出了这次讲话的文字记录版本,其中较有趣的问答包括以下几条:

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FreeRange story - DNSPod移动版本上线

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"DNSPod移动版本上线"

你是否经历过以下场景?当你出门在外,突然接到一个电话,某台服务器出问题,需要紧急切换IP。而这个时候你没带笔记本,不方便上网。于是你心急火燎的到处找网吧。 好不容易找到网吧,把故障IP切换掉后,你又发现你的域名管理帐号被盗了,记录被黑客篡改到挂马页面。网站声誉受到影响,google搜 索结果被标记为有恶意软件,流量急剧下跌。于是,你被boss fire了。

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2010年3月3日星期三

FreeRange story - 国际空间站宇航员拍摄到南半球夜光云震撼照片

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"国际空间站宇航员拍摄到南半球夜光云震撼照片"

南半球极地中气层云的罕见照片 北京时间2月23日消息,据美国宇航局官网报道,2010年1月30日,国际空间站飞越南大西洋上空时,空间站上的宇航员拍摄到一幅壮观而震撼的南半球极地中气层云的罕见照片。...

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FreeRange story - 提议关闭网吧的政协委员公司网站遭黑客攻击

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"提议关闭网吧的政协委员公司网站遭黑客攻击"

vimac 写道 "新民网报道,政协委员严琦表示,在全国两会期间,将提交提案,建议政府关闭所有社会网吧,由政府办公共网吧。3月2日夜间,其所在公司网站受到黑客攻击,目前已经处于瘫痪状态。 此间媒体就严琦的看法做了广泛报道,引起互联网热议,在许多社区内,转发和跟帖更高达千条,有支持者,也有反对者,称该政协委员提案太雷人,更有网友提议抵制严琦所办的陶然居餐厅。3月2日夜间,有网友爆料,称黑客攻击了陶然居官方网站,记者随即查证,发现其域名www.cn-taoranju.com的首页已经被篡改,自称为烟蒂哥的黑客留言:不要迷恋哥,哥只是个传说。 腾讯网报道(有图)"

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2010年3月2日星期二

FreeRange story - NASA估计月球北极有6亿吨水

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"NASA估计月球北极有6亿吨水"

在分析了搭载在印度"月船一号"探测器上的NASA Mini-Sar雷达收集的月球数据之后,NASA宣布它估计月球北极蕴藏了多达6亿吨水冰。 Mini-Sar发现的北极附近的40多个陨坑里的水冰宽度不等,直径从2公里到15公里之间。尽管不能测出陨坑的深度,但科学家说,这些水冰至少应该在2米厚以上,才会让雷达测出。这些被发现有水冰的陨坑大多数都是从来无法受到太阳的光照,永远在黑暗的笼罩下。一些永远处于黑暗的陨坑的温度最低可达零下248摄氏度,比冥王星的表面还冷,这样才会保持水冰的冰冻状态。

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2010年3月1日星期一

FreeRange story - 加州理工制造出柔韧性,转换效率86%的太阳能电池

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"加州理工制造出柔韧性,转换效率86%的太阳能电池"

将细长的硅线阵列嵌入进聚合物基体中,加利福尼亚理工学院的研究人员创造出一种柔韧性的、光电转换效率极高的新型太阳能电池。新的材料能吸收95%的单波长入射阳光和86%的全部阳光,同时大大提高了光能转换效率。 有许多材料能充分吸收光,但它们无法产生电力,比如黑色涂料。对太阳能电池而言,吸收的阳光有多少能转换成电力至关重要。研究人员制造的硅线阵列能将90%到100%的吸收光子转换成电力,换句话说,这些硅线有近乎完美的内部量子效率。极高的光吸收率加上极高的光电转换效率,创造出极高品质的太阳能电池。目前市场上的太阳能电池光能转换效率最高只有40%左右,如果新的太阳能电池能成功商业化,将能大幅度提高太阳能的商业应用。

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FreeRange story - 华硕为Eee Box加装USB3.0接口 变身媒体中心

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"华硕为Eee Box加装USB3.0接口 变身媒体中心"

除了铝壳Eee PC外,华硕在CeBIT上还展示了 Eee Box EB1501 型号的超便携PC,它被定位为一个家庭影院电脑, 新版添加了两个USB3.0高速接口,采用NVIDIA Ion结构,内置一颗双核1.6GHz Atom,2GB内存,250-320GB硬盘可选,支持Wi-Fi,有HDMI和VGA输出,六个USB接口,一个eSATA接口,5合1读卡器,双层DVD刻录机也成为标配。此外,采用800MHz三星处理器的更纯粹的家庭影院PC - EeeMedia EM0501也刚刚被展示出来,它的功耗仅有10W,可轻松回放1080p HD视频。

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FreeRange story - 研究发现低智商者患心脏病风险高

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"研究发现低智商者患心脏病风险高"

据英国《每日电讯报》11日报道,苏格兰一项研究发现,心脏病同低智商存在关联性。研究显示,低智商位列吸烟之后,成为预测心脏病的重要指标。 众所周知,一系列因素可以预测心脏病,比如吸烟、血压。这项研究发...

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FreeRange story - 运动预防疾病效果可能由基因决定

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"运动预防疾病效果可能由基因决定"

日本信州大学研究人员在最新一期美国《高血压》杂志网络版上报告说,运动对预防疾病的效果可能由基因决定。 研究人员说,他们设计了一种能预防中老年人生活习惯病和增强体质的锻炼方案—&mdash...

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