z*****n 发帖数: 447 | 1 请问,市场上有没有 Wireless Baseband Signal Processing 的evaluation board 、Testbed 或者 development kit 之类的产品卖?
基于FPGA 或 DSP的,可以买来直接用,或者稍作修改,主要用于测试算法或者教学之
用。
Thanks! |
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s*****y 发帖数: 1974 | 2 大公司有sundance
小的可以用GNUradio
TI, Xilinx的网站上也有承销商
俺们公司也有,学校教授开的公司,有意可以战内联系
、Testbed 或者 development kit 之类的产品卖? |
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kn 发帖数: 2446 | 3 看着个帖子里面,我的回复。
、Testbed 或者 development kit 之类的产品卖? |
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c**********e 发帖数: 2007 | 4 这个Strategy design pattern的例子为什么人为得弄得这么复杂?
#include
#include
#include
using namespace std;
class Strategy;
class TestBed
{
public:
enum StrategyType
{
Dummy, Left, Right, Center
};
TestBed()
{
strategy_ = NULL;
}
void setStrategy(int type, int width);
void doIt();
private:
Strategy *strategy_;
};
class Strategy
{
public:
Strategy(int width): width_(width){}
void format()
{
char line[80], wo... 阅读全帖 |
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k***x 发帖数: 6799 | 5 我是EE fresh PhD,简历就是在网上投的。大概1周多之后收到email要求电面,其他一
概没问。让我面试的职位是software engineer:simulation。
本来早就说好要collabedit写code的,结果电面那天网站当了,题目是一边说,一边发
email的。大概讲思路和分析复杂度即可。
刚开始先聊了一下,互相讲了大概做的东西,然后做题。
1.(a) 一个大的脚本文件里有很多测试的时间戳(可能是混乱的),怎么设计算法和数
据结构返回测试用的时间。比如:
2011-01-01 13:49:12 Test started
2011-01-01 13:50:33 Test ended
返回 myData.timeTaken("Test") => 81
(b) 在(a)的基础上,如果有多套测试,怎么设计。比如:
2011-01-01 13:49:12 MyTests.SimpleTests.TestA started
2011-01-01 13:51:33 MyTests.SimpleTests.TestA ended
2011-01-01 13:51:36 MyTe... 阅读全帖 |
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X*****r 发帖数: 2521 | 6 你去看看他paper中的model
离practical差得远了去了
意义是不错
可是说比mobicom 06所以paper都好,恐怕见仁见智了
真要说testbed,我记得mobicom UCLA的一篇关于rate control的testbed文章也很集大成
在该文之后,rate adaptation的文章几乎绝迹,因为该考虑的基本都被address了 |
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s********k 发帖数: 6180 | 7 以前一直做系统实现,做了很多testbed的事情。发现其实一旦testbed起来了,发文章
就容易多了,因为你只需要找到一个algorithm,然后系统实现。只要系统实现结果不
是很离谱,就可以了。其实做多了之后,对于一篇文章是不是可以实现基本一眼就能看
出来。很多时候算法或者协议只要逻辑上没问题,系统一定可以实现,至多一些偏差,
比如RSSI之类的。有些理论没有做实现问题是他们做了太多的假设,而假设部分其实是
最难的,比如network wide的sychro,或者global information下做出的一些决定。我
觉得系统实现是很好的,事实上我现在也在做这方面。但是花了太大篇幅强调自己的实
现,分析实现中出现的问题,就有点像tech report。真正最有价值的系统实现应该找
到了原来没有发现的问题,而不是只是证明自己的某个特定算法。这确实很难,我也还
没做到,希望今后有系统实现牛人能做到。 |
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z*******n 发帖数: 1034 | 8 http://google-opensource.blogspot.com.es/2014/07/flowing-into-y
We are thrilled to announce the 1.1 release of LiquidFun, an open-source 2D
physics engine. It adds particle simulation to Erin Catto’s popular Box2D
engine, and can be used as a drop-in replacement for Box2D. If your program
is written in C++, Java, or JavaScript, you can easily use LiquidFun.
Today’s release adds some exciting new features to LiquidFun. Some
highlights:
LiquidFun now runs in your browser! Using Emscripten, we’... 阅读全帖 |
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c**i 发帖数: 6973 | 9 (1) J-20 Flies Off Into Uncertainty. Strategy Page, Jan 14, 2011.
http://www.strategypage.com
/htmw/htairfo/articles/20110114.aspx
My comment:
(a) The article states, "Of the four stealth fighters than [sic; should be '
that'] have been built and flown so far (U.S. F-22 and F-35, Russian T-50
and I.42), the J-20 looks most like the I.42, a MiG project that was
cancelled in 1997.
Presumably this is because the previous F-111 and F-117 also served as a
bomber.
(b) Regrading I.42. I search the web.... 阅读全帖 |
|
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f****t 发帖数: 15913 | 11 F16低空最大速度是1。2马赫,和歼十一样,楼主是真SB
*********************************
Specifications (F-16C Block 50)[edit]
GENERAL DYNAMICS F-16 FIGHTING FALCON.svg
View of underside of F-16 during a vertical climb
Testing of the F-35 diverterless supersonic inlet on an F-16 testbed. The
original intake with Splitter plate is shown in the top image
Weapons Storage and Security System vault in raised position holding a B61
nuclear bomb, adjacent to an F-16. The vault is within a Protective Aircraft
Shelter.
Data from ... 阅读全帖 |
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c*******2 发帖数: 617 | 12 In a Thanksgiving surprise, a new code change has revealed the first Android
smartphone to be used as a testbed for Fuchsia, Google’s in-development
operating system for devices of all kinds. The bigger surprise — it’s a
Huawei.
Google and Huawei certainly have history together, with Huawei being
responsible for one of the most beloved Google phones, the Nexus 6P. It
makes perfect sense that the two companies would continue to work together
as Google develops a revolutionary new operating system... 阅读全帖 |
|
c*******2 发帖数: 617 | 13 In a Thanksgiving surprise, a new code change has revealed the first Android
smartphone to be used as a testbed for Fuchsia, Google’s in-development
operating system for devices of all kinds. The bigger surprise — it’s a
Huawei.
Google and Huawei certainly have history together, with Huawei being
responsible for one of the most beloved Google phones, the Nexus 6P. It
makes perfect sense that the two companies would continue to work together
as Google develops a revolutionary new operating system... 阅读全帖 |
|
x****u 发帖数: 12955 | 14
No. The IL76 testbed has been testing WS20, designed for Y20. |
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x****u 发帖数: 12955 | 15
No. The IL76 testbed has been testing WS20, designed for Y20. |
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发帖数: 1 | 16 马斯克透露,将很快开始测试星际载人飞船系统, 推力是土星五的两倍!
Musk: Atmospheric tests of interplanetary spaceship could happen next year
March 13, 2018 Stephen Clark
Artist’s concept of the BFR spaceship deploying a satellite in orbit.
Credit: SpaceX
A team of SpaceX engineers is building a prototype of the spaceship Elon
Musk hopes will one day carry people and cargo deep into the solar system,
and it could begin low-altitude testing next year, kicking off a multi-step
test campaign before eventually going into space, the... 阅读全帖 |
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m****1 发帖数: 736 | 17 a good testbed to see if the board masters really do their jobs well... |
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K******g 发帖数: 1870 | 18 我刚毕业,说说我个人的经验吧,顺便攒rp。
如果将来定位于工业界,一定不学纯算法方向的,那些方向的学生除了个matlab,什么
都不会用,将来找程序员会很难。即使做算法,也要尽量往data mining,
information retrieval方向上靠,因为这些算法方向在工业界应用很广泛。Google,
FB等大公司有许多职位喜欢招这方面的phd。但是那些太偏理论的教授也不要跟,要选
那些将data mining,information retrieval算法应用在实际系统里的教授。
另外system方向的一直都很不错,因为做system方向的research,需要有很强的动手能
力,比如改Linux kernel,在distributed testbed上跑大量的实验。这些方向往往涉
及到OS, networks, cloud computing, database, storage里的performance。这些
东西又恰恰是公司要用的东西。这个方向出来的学生,投简历的话,可以收到大把大把公司的回复。
至于那些医疗啊,图像处理啊,都是些老的掉牙的方向,学出来除了几个大牛公司可以... 阅读全帖 |
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l*****a 发帖数: 14598 | 19 为什么不返回TestA,TestB,Test1的结果? |
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p*****p 发帖数: 33 | 20 据说很多人都在买买提上找到工作了,我在网上投了不少大部分都没消息了,所以也来
这里求大家帮忙。
我12月刚刚硕士毕业,在实验室干了两年,做过PV simulator 设计,Microgrid
testbed 的CAN通讯系统设计,跟着实验室的师兄做过DCDC converter,对半导体器件
测试略懂。会用LabVIEW,
Altium Designer,orCAD,PSIM,CCS,DSP,impedance analyzer, spectrum
analyzer。
之前一直忙着毕业的project,所以没有太多精力投入到找工作上去。学校的career
fair的时候跟着实验室的师兄们去了ECCE,结果又错过了找工作的好机会。都说女生比
较好找工作,可是现在毕业了都没着落,实在是着急。EAD卡已经 issue了,马上可以
拿到开始工作。求论坛上的学长学姐给个内推机会,不胜感激,我的email是:penny.
p***[email protected] |
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p*****p 发帖数: 33 | 21 据说很多人都在买买提上找到工作了,我在网上投了不少大部分都没消息了,所以也来
这里求大家帮忙。
我12月刚刚硕士毕业,在实验室干了两年,做过PV simulator 设计,Microgrid
testbed 的CAN通讯系统设计,跟着实验室的师兄做过DCDC converter,对半导体器件
测试略懂。会用LabVIEW,
Altium Designer,orCAD,PSIM,CCS,DSP,impedance analyzer, spectrum
analyzer。
之前一直忙着毕业的project,所以没有太多精力投入到找工作上去。学校的career
fair的时候跟着实验室的师兄们去了ECCE,结果又错过了找工作的好机会。都说女生比
较好找工作,可是现在毕业了都没着落,实在是着急。EAD卡已经 issue了,马上可以
拿到开始工作。求论坛上的学长学姐给个内推机会,不胜感激,我的email是:penny.
p***[email protected] |
|
p*****p 发帖数: 33 | 22 据说很多人都在买买提上找到工作了,我在网上投了不少大部分都没消息了,所以也来
这里求大家帮忙。
我12月刚刚硕士毕业,在实验室干了两年,做过PV simulator 设计,Microgrid
testbed 的CAN通讯系统设计,跟着实验室的师兄做过DCDC converter。会用LabVIEW,
Altium Designer,orCAD,PSIM,CCS,DSP,impedance analyzer, spectrum
analyzer。
之前一直忙着毕业的project,所以没有太多精力投入到找工作上去。学校的career
fair的时候跟着实验室的师兄们去了ECCE,结果又错过了找工作的好机会。都说女生比
较好找工作,可是现在毕业了都没着落,实在是着急。EAD卡已经 issue了,马上可以
拿到开始工作。求论坛上的学长学姐给个内推机会,不胜感激,我的email是:penny.
p***[email protected] |
|
s*****o 发帖数: 1540 | 23 请马上给我站内发信,告诉我你能审那一篇的编号.要求
1:PHD already obtained in CS and EE。为保证审稿质量,必须是网络,通信和相
关专业的。我宁可自己不睡觉自己审,也不可能给其它毫无关系的专业博士审理,见谅。
2: 本周末审完
3: let me know your edas id.
1:A paper on Reliability-Based Stage ARQ
2: A paper on MANET simulation, Routing, ORBIT Testbed
3: Optimization of Key Parameters, 40-Gb/s RZ-DPSK, Optical Switching
Network
4: Polling-based Protocol, Wireless Feedback, Inverted Pendulums |
|
s*********5 发帖数: 5637 | 24 突然好想去看牛郎 (Altair),织女星(Vega),和爱人手牵手体会一下kitty形容的
被丝绒般的星空包围的感觉。去年LG和他姐姐去了Bryce Canyon NP,看到美丽的银河和
满天繁星,可惜我没有去。(见附图)上个周末朋友去Lake Cuyamaca露营看流星,我
也没法成行。。。
明晚去哪里看鹊桥相会呢?
---------------------
http://blog.sina.com.cn/s/blog_6ad5d7b001019h71.html
Altair (Alpha Aquilae, Alpha Aql, α Aquilae, α Aql, Atair) is the
brightest star in the constellation Aquila and the twelfth brightest star in
the night sky. It is an A-type main sequence star with an apparent visual
magnitude of 0.77 and is one of the vertices o... 阅读全帖 |
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z****n 发帖数: 1933 | 25 I just signed up to go to one of the Direct Buy sales pitches. I'm not going
to buy it, I'm just going for the free android tablet and $100 (probably
restaurant.com) "gift card." I was assured that I'd leave the presentation
with the tablet and coupon code for the restaurants in-hand.
After googling for a bit, it sounds like most people are being forced to pay
about $60 in "shipping" charges for the android tablet. I had, in no
uncertain terms, verified that I'd leave the presentation with the p... 阅读全帖 |
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s*****n 发帖数: 536 | 26 Yeah, Another sui1 ren2 is cxxx, I remember. :))
enh...I am fine except bads :)
reading tons of papers and don't know if it will
be useful or not. Anyway, it's better than standing
beside the testbed for 10 hours.
see'ya! |
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c****r 发帖数: 185 | 27 A large proportion (1/3 or more?) of DM guys use bio data for experiments. A
lot of DM problems are motivated by bio data.
DM guys contribute on methods. Methods developed for bio data can be applied
to other data. Yahoo, Google? Business data are well managed, well-known.
Little new knowledge can be discovered, which is the goal of DM. Bio data,
on the other hand, is the best testbed. |
|
X*****r 发帖数: 2521 | 28 他除了实现一个network coding的testbed
对network coding的理论有什么帮助? |
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a****9 发帖数: 418 | 29 他06年那片sigcomm “Practical Wireless Network Coding” 出来之前,
关于network coding到底在wireless中能不能用还争论的一塌糊涂。大家
都是盖着盒子摇。他作出了这个testbed。所以还是很有意义的。
我老板开会回来告诉我他那篇被认为比那年所有mobicom的paper都好。 |
|
s******g 发帖数: 3841 | 30 那个testbed离能用还远着呢
不过倒带出了dina katabi之后若干篇sigcomm的文章
不过也要看search committee的人的,我们系的教授说当年Hari Balakrishnan拿遍全
美国的offer就被我们系拒了。 |
|
s********k 发帖数: 6180 | 31 是2006哪篇:Robust Rate Adaptation for 802.11 Wireless Networks?
这个好像也是testbed为主吧 |
|
n**u 发帖数: 6997 | 32 问题是做SYSTEM,也得做得有点模样啊,不是说我有SYSTEM,我就就能发。 MOBICOM 今年的水准,实在不敢恭维!
SYSTEM 同样可以骗人,我今年建了6个月的 TESTBED。。。
其实个人感觉比THEORY更容易骗人 |
|
g*****n 发帖数: 239 | 33 昨天刚有一样的悲剧,本方向最好的transaction。一个reviewer扯了一个不知名的
paper要我来比较。那个paper的citation还不到我自己conference version的1/10. 第
二个reviewer更酷,一个明显分布式的算法被他说需要global information, 而我连
testbed implementation都有。跟editor argue了一下,也是回的不痛不痒,你已经比
我幸运了。
另外一个journal paper投了3年还没有回应,和editor in chief complains 数次还是
没有结果。看来我journal的rp低到lower bound 了 :-( |
|
g*****t 发帖数: 394 | 34 不用说你肯定不是做wireless和mobile的了。请评价一下sigcomm和nsdi里边的小圈子和
politics吧。sigcomm还好一点,你去看看nsdi,特别是07年以前的program,我就不说
啥了。
你这做的不是cs而是ce吧?说实际的话,你这些testbed哪一个有google的product实际
?哪一
个放到真正的internet上work?要这么说academia干脆都关门算了,像sigmod, nips,
iccv这些conference干脆都解散得了。大家都去industry做coder最好。更何况你paper
里的
data人家重做还不一定能验证(这个不用我多说吧,data是怎么样tune出来的大家都有
数)。除
非哪年sigcomm也学人家sigmod,submit paper的同时要求提交code
其实system和theory本来就应该是相辅相成的两方面,在哪一方面的过分偏向都是不正
常的。就
这么两三年的所谓趋势就让你们手舞足蹈觉得老子的春天终于来了,那怎么不想想前几
年theory大
行其道的时候呢?具体最近的请参见07,08的mobicom的 |
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s********k 发帖数: 6180 | 35 【 以下文字转载自 EE 讨论区 】
发信人: silverhawk (silverhawk), 信区: EE
标 题: 有没有对AODV理论分析的文章?
发信站: BBS 未名空间站 (Wed Aug 18 13:36:30 2010, 美东)
不是跑仿真或者testbed,而是从AODV协议入手,分析其性能(比如用big O相对于节点
数目表示)代表性文章?谢谢 |
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a**9 发帖数: 86 | 36 来自主题: EmergingNetworking版 - 新人找工作求教 第一次来这个版,看起来不错
我是新人,还在学校,估计明年能屁股着地,想下半年开始找找工作.
我主要想找网络公司的码工的职位(cisco, f5, pan, etc), 个人对data center,
cloud computing, 或者powerline的东西都比较有兴趣
在学校里干的主要是wireless network protocol design,实验室里也就只能干这些。
。。当然,我自己也乐意干这些。。。
L2以上的protocol多少都写过,不过主要还是routing和MAC的东西,或者一些cross
layer的,simulation和testbed(AP, sensor, phone)都做。。。不是只做theory
analysis。。。
学校里面写的这些protocol,放industry估计就是个toy,或者都不算。。。这我自己也
清楚,但是,这个经验能当饭吃吗(protocol design, system progoramming)?
我想知道我这样的背景找网络公司的码工有什么优势吗?还是码工都一样,民工不问出
身,会码就行?
CCIE这些没看过,打算上班了有... 阅读全帖 |
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r********t 发帖数: 338 | 37 来自主题: EmergingNetworking版 - 糗事都凑一块了 整了一群会叫的,狂吼。BU软了,居然把testbed整好了。不等BU和TAC了,咱自己上去
捣鼓,客户那头都快上吊了。叫唤也是艺术,可惜咱不是艺术家。 |
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p**o 发帖数: 3409 | 38 组里准备购进20-30个笔记本来搭wireless testbed
请问有哪些便宜的批发渠道? |
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g***i 发帖数: 4272 | 39 公司的testbed升级,之前的7750 sr1估计不要了,这东西能家用么 |
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G*********a 发帖数: 1080 | 40 en, but what i want to do is really understand its API and extend its simple
demo into a more flexible and powerful testbed.
for example, how to extend Similarity class etc. if u do play on it, i hope i
can discuss with u.
。 |
|
c****r 发帖数: 185 | 41 If you use a good computer, e.g., 500M memory, 2G CPU,
JBuilder is really smooth and responsive.
The only thing to complain might be the startup time.
But comparing to the hours, days or months spent on programming,
the seconds for starting up an IDE is trivial.
IDEs are written in java because:
1. The IDE can easily run on other platforms
2. Higher productivity. Usually writing programs in Java takes less time than
in C++
3. The IDE itself is a good testbed for Java. I guess Borland uses JBuild |
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m******t 发帖数: 2416 | 42
I would try not to confuse test fixtures and
test artifacts.
The object B1 you insert in TestA.setUp is
a test fixture for TestA, i.e. something to
support a test.
The object B2 inserted by TestB.testInsertB() is
a test artifact, i.e., the result of a test.
It is actually a good thing to keep those two
separated. |
|
v*****r 发帖数: 1119 | 43 fedora 是 RH's testbed for all cutting edge software.
Centos 是 RH Enterprise的unofficial免费版 plus some kernel bug fix from
centos team. |
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c******n 发帖数: 16666 | 44 真发布 但是看着又是为了赶ngcon
github页面也没更新
还有这个
“[–]JungleJoker 111 points 7 hours ago*
A few of the things you can expect in the near future from the Angular
team:
Bug fixes and non-breaking features for APIs marked as stable
I just checked the docs and the source code, a lot of modules are still
marked as "experimental". Even basic every day use ones, HTTP for instance.
TestBed, the new testing module that's supposed to become the defacto way of
writing tests is still marked as "experimental"... 阅读全帖 |
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g****t 发帖数: 31659 | 45 https://www.nitrd.gov/news/national_ai_rd_strategic_plan.aspx
Strategy 1: Make long-term investments in AI research. Prioritize
investments in the next generation of AI that will drive discovery and
insight and enable the United States to remain a world leader in AI.
Strategy 2: Develop effective methods for human-AI collaboration. Rather
than replace humans, most AI systems will collaborate with humans to achieve
optimal performance. Research is needed to create effective interactions
between h... 阅读全帖 |
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A*****o 发帖数: 222 | 46 The problme is just installed and you didn't do anything RIGHT.
Just installed without security patches means just a testbed for hackers:) |
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d*********e 发帖数: 3835 | 47 By Niall O’Keeffe
For Airbus and Boeing, 2010 brought an orders bounceback that will surely
continue in 2011. In 2009, Airbus won 271 net orders while its US rival
notched just 142. But the relative buoyancy of the market in 2010 can be
gauged from tallies the airframers posted in November. For the first 11
months of the year, Airbus recorded 388 net orders. Boeing fared even better
, with a comparable figure of 489.
Regarding deliveries, the airframers' fortunes contrasted. After reaching
498 a... 阅读全帖 |
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d*****r 发帖数: 2583 | 48 为了表示对光学的尊重,想起很久以前看的一个故事,大家吵架之余,娱乐一下:
发信人: zoyi (aaa), 信区: OETech
标 题: 大师的传说
发信站: BBS 水木清华站 (Mon Dec 25 21:56:49 2000)
传说在很久很久以前,光界出了一位大师,他能用最简单的方法把月亮变成绿色.他
的眼睛生来就在1.3和1.5微米处有两个窗口,他用耳朵可以听出激光的偏阵态,他
焊光纤前用菜刀处理光纤头,高琨不信,但他惊异的发现在显微镜下通光的光纤头中
不折不扣有一根细线与平滑的端面垂直.所以当高琨看到大师用酒精灯焊光纤时没
有叫人看上帝.
大师从不做系统实验,因为据说他左脑里有一个路径足以到达太阳系边缘的testbed.
大师经常会突然莫名其妙的从喉咙里蹦出不计其数的诡异的数字,有人说那是伪随机
码.
自从有人在八月十五紫金之巅看到他用碧绿的月光制备光纤光栅以后,就再没有人
见过他的踪迹,只残存一张写着IP over AWG的字条.
从那以后,光界再没出过大师,只留下对绿月亮的断续回忆和......不了情. |
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d*****r 发帖数: 2583 | 49 为了表示对光学的尊重,想起很久以前看的一个故事,大家吵架之余,娱乐一下:
发信人: zoyi (aaa), 信区: OETech
标 题: 大师的传说
发信站: BBS 水木清华站 (Mon Dec 25 21:56:49 2000)
传说在很久很久以前,光界出了一位大师,他能用最简单的方法把月亮变成绿色.他
的眼睛生来就在1.3和1.5微米处有两个窗口,他用耳朵可以听出激光的偏阵态,他
焊光纤前用菜刀处理光纤头,高琨不信,但他惊异的发现在显微镜下通光的光纤头中
不折不扣有一根细线与平滑的端面垂直.所以当高琨看到大师用酒精灯焊光纤时没
有叫人看上帝.
大师从不做系统实验,因为据说他左脑里有一个路径足以到达太阳系边缘的testbed.
大师经常会突然莫名其妙的从喉咙里蹦出不计其数的诡异的数字,有人说那是伪随机
码.
自从有人在八月十五紫金之巅看到他用碧绿的月光制备光纤光栅以后,就再没有人
见过他的踪迹,只残存一张写着IP over AWG的字条.
从那以后,光界再没出过大师,只留下对绿月亮的断续回忆和......不了情. |
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k*******d 发帖数: 1340 | 50 因为读MFE/MBA要很多钱,而且MFE和Phd相比,找Quant的职位Phd更有利
EE和CS确实走反了,搞Science的在build testbed, 搞Engineering的在推公式
mba |
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