平常心

把自己卖出去了

Sun, 15 Nov 2009 11:50:02 +0800

北京下雪了，可是我的回家观雪计划泡汤了，因为万恶的半导体考试！关键词: 冷、半导体。

其实半导体老师人很牛，如果不是讲课什么也听不懂考试还这么难，真的可以作我偶像了。他在讲课时他经常会聊起年轻时的事，年轻的时候他是江苏省队的体操运动员，后来在中美蜜月时期被派到美国学习，后来在美国做了教授，无论工作还是生活上都算得实实在在的 winner。半导体老师是南京人，听说他每次上课坐火车往返，说不定也是个车迷呢。

上周五终于把三方协议寄出去了，找工作的事情到此尘埃落定。收到了 M$ 和 G 公司的拒信，大学生涯完整了。本来计划好的这周末回家顺便去阿里参观一下，结果因为半导体考试日期提前被迫取消，原本的"烤鸭+涮肉"周末变成了躲在图书馆看半导体。上海的冬天真是冷，不知道土著们是怎么存活下来的。每当这个时候就格外想念家中的暖气。昨天有人问我暖气是什么感觉，我说就是外面飘雪家里穿单衣。可是江南也会下雪，阴雨连绵时甚至更冷，所以当时按照长江为界确实是否安装暖气就是个悲剧。

随机文章：

出来混迟早要还 2009-11-05

我的功能上线了 2009-04-19

Last Two Weeks 2009-04-11

全天供应水果的坏处 2009-03-21

The Earth Rover 2009-01-15

博客大巴，你的个人传媒早班车

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出来混迟早要还

Thu, 05 Nov 2009 21:51:40 +0800

今天是第一次面试被 BS，大概是人品守恒定律在做怪了，果然是之前一段时间不论实习还是工作都找得太顺了，现在来报应了。还好是被 M$ 拒，反正也不是想去的组，没什么损失。下周一去面 Google，就当作是人民广场一日游，这个也不报什么希望了。其实之前已经被 JIE 说动去阿里了，所以估计 Google 又会和 M$ 面试一样，完全提不起兴趣，也没法装作非常想去他家的样子出来。

随机文章：

把自己卖出去了 2009-11-15

我的功能上线了 2009-04-19

Last Two Weeks 2009-04-11

全天供应水果的坏处 2009-03-21

The Earth Rover 2009-01-15

博客大巴，你的个人传媒早班车

收藏到：Del.icio.us

朝霞

Thu, 08 Oct 2009 06:59:24 +0800

常常今天难得起个大早，可能是由于昨晚的胃痛还没消，也可能是被饿醒的，总之他自己也分不清。下楼打水经过走廊，他看到清晨的阳光恰好照进来，透过远处的落地玻璃，朝霞的余辉映照在地面和墙壁上。他本打算立即上楼取相机记将它拍下来，可到了宿舍却犹豫着是不是要先偷懒一会。十几分钟过去了，当他再次下楼时走廊里的朝霞已全然不见。其实朝霞本不是稍纵即逝的事物，只要肯早起每天都能看到，只是常常难得如此有心去抓它。

随机文章：

小富即安 2008-03-11

咖啡心情 2008-02-23

厌学 2008-10-17

漫漫长夜 2008-09-19

灾难 2008-05-19

博客大巴，你的个人传媒早班车

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绿皮硬座

Fri, 11 Sep 2009 11:59:14 +0800

早就听闻沙河站外的烧麦馆是车迷聚会圣地，暑假回家期间终于有幸亲身"体验"一番。Palmtenor 同学带领我和他的 P 大 ACM 队友们从清华园火车站出发，搭乘 4449 次列车前往沙河。

清华园站和沙河站都位于国铁京张线上。京张铁路是中国最早修建的一批铁路之一，其设计者是著名的詹天佑先生。我们乘坐的是普快列车，由北京北开往隆化。虽然名为"普快"，实际上却是倒数第二慢的等级，我们从清华园到沙河的车费仅有2.5元，在这个和谐盛行的年代倒是别有一番味道。

* 清华园火车站。奥运时期为开行市郊铁路 S2 线，清华园站修建了高站台和天桥。

* "难得一见"的绿皮车

* 清华园站，车内

* 清河站，远处是城铁恰好经过

<完>

随机文章：

十一杂记 2008-10-05

岭南风情 2008-09-01

宁波行 2008-08-30

圣火 2008-05-28

青龙峡·长城 2008-03-22

博客大巴，你的个人传媒早班车

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电信楼机房的遭遇

Fri, 10 Jul 2009 08:58:56 +0800

我们实验室的机房在电信楼，是由一间办公室改造的。人家办公桌都是坐人的，我们放的全是机器。今天下午我在机房修机器，正巧碰到一个修空调的师傅进来查看空调漏水情况。

他很惊呀地看到我们这间"办公室"里放的全是机器，而且几乎没显示器，就问我是怎么回事。

我说：这间是机房，我在修机器。他说：那你是学计算机的？

我说：是呀。

他说：真的啊？

我是，是呀。

于是他无比景仰地看着我，说：那我有一个问题想问问你，我想买一台笔记本电脑.....

随机文章：

出来混迟早要还 2009-11-05

STBC 面经 2008-09-19

漫漫长夜 2008-09-19

近况 2008-07-13

新地盘 2008-02-19

博客大巴，你的个人传媒早班车

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我的 GRE

Mon, 06 Jul 2009 00:58:24 +0800

今晚 GRE 出分了。终于还是没忍住，花了$12电话查分，490+800+4.0，V 比预想的差，AW 比预想的好。如果不是考场上出了倒霉事，再多 10 分上 500 肯定没问题，唉... 算了，即使二战的话也没法保证作文还能拿到4。所以... 我的 GRE 到此即算告一段落，这辈子都不会再碰那些单词了...

随机文章：

厌学 2008-10-17

MSRA 经历 2008-05-08

小富即安 2008-03-11

咖啡心情 2008-02-23

几条原则 2008-02-20

博客大巴，你的个人传媒早班车

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我的功能上线了

Sun, 19 Apr 2009 11:12:05 +0800

根据现有用户的购买纪录，为每个用户推荐个性化的新产品。

欢迎使用 :)

随机文章：

把自己卖出去了 2009-11-15

出来混迟早要还 2009-11-05

Last Two Weeks 2009-04-11

全天供应水果的坏处 2009-03-21

The Earth Rover 2009-01-15

博客大巴，你的个人传媒早班车

收藏到：Del.icio.us

Last Two Weeks

Sat, 11 Apr 2009 22:53:31 +0800

离实习结束的日子越来越近。

4.11 today ---> 4.22 sports day ---> 4.24 check out ---> 4.25 beijing

在研究院时，总是羡慕做那些在做产品的人，他们的努力可以创造利润，而我们却在烧钱。可是真正给我机会来做产品了，却发现并不喜欢这样的生活：每个环节、每道工序，都要小心翼翼地，自己就像一部大型机器内部一只小齿轮，只能在别人规划好的轨道上转着。相比之下，我更喜欢研究院时那种探索未知世界的感觉。

前几天，mentor 问我来实习最终的目标是什么，我说仅仅是体验一下做产品是怎样的。大概对他来说这是个不可思异的答案，这从他的表情也可以看出。不管怎样，我还是完成了这个目标，我发现自己并不适合做产品（不过讲到离开，总是很舍不得整个 team 的人）。

想想看这两年经历也很奇妙的，如果当年教练们没有把我留在队里，如果没有晨曦推荐我去研究院，或者就不是现在这个样子了。我会整天努力工作，会希望留在 STBC 转正，倒也不会为以后做什么事情苦恼了...

随机文章：

全天供应水果的坏处 2009-03-21

The Earth Rover 2009-01-15

十一杂记 2008-10-05

漫漫长夜 2008-09-19

STBC 面经 2008-09-19

博客大巴，你的个人传媒早班车

收藏到：Del.icio.us

全天供应水果的坏处

Sat, 21 Mar 2009 09:42:29 +0800

紫竹office这样全天供应水果也有坏处。比如今天，早上去上班看到阿姨在削菠萝，一直忙到中午打算去吃，发现已经没了... 然后中午吃完饭回来，发现阿姨又在削菠萝... 回去写会code觉得时间刚好，决定去吃！过去发现只剩下最后一块了.. 囧

p.s.

GX两们NIMO的JJ和MM拿到M$的intern offer~ cong~

随机文章：

Last Two Weeks 2009-04-11

The Earth Rover 2009-01-15

十一杂记 2008-10-05

STBC 面经 2008-09-19

漫漫长夜 2008-09-19

博客大巴，你的个人传媒早班车

收藏到：Del.icio.us

The Earth Rover

Thu, 15 Jan 2009 22:16:49 +0800

不知不觉间已经入职三周了~

上周末公司举办了一个面对ACMer的参观活动，在会上我们组的做了一个机器人的演示，这是我花了一周的成果 :) 下面是我们组的 PM xiaowen 同学的实况报道：

Our wonderful dev intern Chao Shi spent some time on a robot demo originally created by our lead PM Justin Smith. He got it working last week, just in time for a presentation to almost 100 college students who visited our offices last Friday. We showed them the robot and talked about Microsoft's cloud computing platform. The following is an edited and translated version of the 10 minute demo/talk. It's an introduction to the platform along with a short intro to the .NET Access Control Service—good read for people starting out with the platform or interested in a cool application.

Everybody has probably heard of the two Mars rovers currently exploring the Martian terrain: Spirit and Opportunity. On Earth, we built our own simple robot using Lego Mindstorms called "the Earth rover". It's the world's first and only robot that leverages a part of Microsoft's brand new cloud computing platform, so we're very excited to introduce it to everyone. A component of the platform, the .NET Access Control Service, is used to manage who can control the robot, and what they can do with it. Before we delve deeper into how that's done, a bit more background on the entire cloud computing platform is in order.

The 21st century is the Age of the Internet. Everyone has probably used large-scale Internet applications, such as Facebook, or Taobao (eBay in China). These kinds of applications have at least two kinds of common requirements:

Computing power. Somebody needs to purchase and maintain the hardware as well as the operating system-level software in order to support the application.

A set of components that provide common functionality.

Most companies do not specialize in creating the above resources—it's not part of their core business and it's not something they have expertise in.

Microsoft, on the other hand, maintains many large-scale Internet websites and applications such as Hotmail, and a host of other Windows Live services. In doing so, we've gained a set of valuable experiences and skills. The new cloud computing platform, the Azure Services Platform, is a way of sharing that experience and expertise with the rest of the community, so that organizations can focus on their core value propositions.

The platform consists of two major layers. At the bottom, and forming the foundation of it, is Windows Azure. This is Windows in the cloud. Users can upload their .NET applications to it, and have it run on Microsoft's servers. In the future, native applications, such as C++ programs, will also be supported. This is comparable to an electric power plant. Whereas power plants provide electric power, Windows Azure provide computing power. Just as most people won't buy their own electric generator, people won't have to buy and maintain their own servers in order to obtain computing power.

The layer above that consists of a set of building block services, including a database in the cloud (SQL Services), and some social services, infrastructure, and runtime (Live Services). The robot was built using the .NET Services, which itself contains three sub-components: Access Control Service, Service Bus, and Workflow Service.

Our robot is a precious resource, and we need to prevent abuse. In order to do so, we've put the Access Control Service in the role of a gatekeeper. Operators must get permission from gatekeeper before being allowed access to the resource.

To manage the permissions, we can apply the correct set of access control rules.

We currently have five rules, each one corresponding to a single function of the robot—the robot can move forward, backward, turn left, turn right, and stop. Having all the rules enabled allows the user to use all the functions. In the illustration, a user named “TesterF” has been granted access to perform the five functions. The .NET Access Control Service also allows a lot of flexibility in specifying users. For example, a Windows Live ID user maybe be granted access, or an Active Directory user, etc.

Of course, the access control service and the rest of the Azure Services Platform have many more features than I've just described. For more information, please visit:

Azure Services Platform: http://www.microsoft.com/azure/

.NET Services: http://www.microsoft.com/azure/netservices.mspx

For those inquisitive people who are interested in more details about the robot, here's a diagram that shows the internals of the service.

This kind of demo shows an interesting use-case for the home hackers out there. Say you have some Christmas lights that you want to remotely control from the Internet. Consider using this service to allow your friends to control it. All they need to have is an account with an identity provider such as WLID. Leave the security considerations of accounts to the identity provider. What other innovative ideas do you all have that could leverage this service? Leave me a comment!

Author: Xiaowen Xin

Link: http://blogs.gotdotnet.com/xiaowen/archive/2009/01/14/the-earth-rover.aspx