j*******e 发帖数: 82 | 1 在革命和不革命之间,没有第三条路走?
浙大的领导换上jeer 和opto是否会更好些??
偶开始怀疑了,:-)
都有那么多强烈的个人意志,和掌握绝缘真理的气势,
浙大的澡堂就是这样建成的,
为什么我们在批评别人时,却愿意走被批评者的老路?
口气严然象个浙大的领导!
这样的话,还不又是个"改朝换代"?
倒楣的还是俺们老百姓!
革命者三思啊!
最好的办法还是多发文,让我们明白你革命的道理
唤起群众,而不是强拉硬拖,:-)
否则,偶还是觉得灌水更实际些,其码干完活后有个讲话的地方. |
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h***y 发帖数: 228 | 2 首先我们应该定义一下什么叫做灌水。
从数量上讲。4行以下的,我个人认为是纯水;
从质量上讲。都是一堆无意义的啊。啊。恩。恩,吃饭去了,我个人认为是纯水;
还有我个人认为非常让人接受不来的另一种水,看上去十分玄目,写了好多东西,
其实其中有许多尖刻,甚至是刻薄的非指明人身攻击,具体讲是有许多扎眼的文字。
所以我个人意见,灌水允许,但应有度,
从网虫角度来讲,我建议如果非要发上述的文章,去test版,这恐怕有个适应过程。
从斑竹角度来讲,我建议辛苦一些,让水24小时之内消失,所谓辛苦就是要在洪水中
取其精华,去其糟粕。而且要经常整理精华区吧。
举的例子没有针对性。仅是随手拿来,别对号入座。
我个人非常能够理解国内的校友辛苦爬上来,而迷失在水中的感受,
也能理解爱灌水,以此为家的校友的心情。
希望jeer,opto别真的讨厌这里,回来看看,我们在进步呢/:)
还有我不知道jeer上会看到maple写的无标题的文章是否是一个程序造成的,如果是,
我建议不要用这种程序。hutuworm不要骂我。我没有用过你的灌水机,瞎说的。:)
总得解决吧,别极端的走掉,大家集思广益拉。 |
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o******s 发帖数: 1364 | 3 发信人: Opto (猴子,做正事了), 信区: Oversea
标 题: 写给我的母亲(0)
发信站: 飘渺水云间 (Sun Jun 9 01:52:27 2002), 转信
我知道可能这篇文章跟oversea的关系不大,但仍然首先把它贴在这里,有
两个原因:(1)它是一个离乡背井的oversea人的一点感触;(2)很多网友曾经问
我的PS究竟怎么写的,我说是我的experiences,因为这些东西太personal,毕竟
PS可以说是personal statement,所以我一直没怎么说。这篇文章算是对大家的
一点交待吧,其中一些东西来自我的PS。但是,请大家原谅,我不能公开我的完
全版的PS。
看过好多写父亲母亲的文章,自己却从来没写过。有时候我也怀疑自己是不是真的
对自己的亲人太冷漠了。这两天没去上班,虽然I20也没着落,内心倒是平静许多,想
想自己很可能在不到两个月的时间里就再一次背井离乡,真的有一些伤感,不由得想起
自己的过去和生我养我的母亲。
母亲印在我记忆中的最早的一幕是9岁时父亲离开我们时母亲在床头痛哭时的情形。也
许是父亲的过早离去对我一生的 |
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P***a 发帖数: 4213 | 4 ☆─────────────────────────────────────☆
opto (huhu) 于 (Thu Feb 8 16:49:08 2007) 提到:
从入学第一天就觉得巨难看. 诸位以为如何?
☆─────────────────────────────────────☆
ggmm2003 (GGMM) 于 (Thu Feb 8 17:41:27 2007) 提到:
嗯,慢慢就习惯了
☆─────────────────────────────────────☆
foureyes (侠客行) 于 (Thu Feb 8 19:55:42 2007) 提到:
有个性的.
其实看德国,和俄罗斯的国标更强.
☆─────────────────────────────────────☆
windheart (蓬蓬) 于 (Thu Feb 8 22:16:56 2007) 提到:
挺好看的,我们叫它求是鸭。
☆─────────────────────────────────────☆
Panda (太能猫) 于 (Th |
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ET 发帖数: 10701 | 5 opto-electronics? like what? |
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w******e 发帖数: 1187 | 7 前者不懂,后者不同方向差很多(比如千万别做DEP呵呵),能去
stephen quake/whitesides那种地方的当然去了,如果是搞什么屠龙技
那还是三思吧(我们lab刚招了个做opto方面发了CNS的,据他说找不到
工作)。btw目前microfluidics方面的大会比如uTAS上公司的比重都
不高,in general比较忽悠~ |
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j**h 发帖数: 126 | 8 nature.com
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Article
NATURE | NEWS
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Debate grows over a molecule implicated in animal navigation.
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04 April 2017
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The red-spotted newt and many other animals can somehow sense Earth’s
magnetic field.
For decades, scientists have wondered how animals c... 阅读全帖 |
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s******l 发帖数: 212 | 9 Newport is a little expensive than others.
For lens or lens group, you could go to edmundoptics Inc.
For opto-mechanics parts, go to throlabs.
For used optics, surplusshed.com
other: anchoroptics.com
amazon, ebay also sale used optics devices |
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g******u 发帖数: 3060 | 10 flyback并不好做,如果要做自己的变压器。不过应该有些现成的,可以看看coilcraft
的网站。opto应该不好做,比值太大了,duty cycle会很小。
还是买个市面上的方便合算多了。不过5V到100V的我是没见过。 |
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M*******c 发帖数: 4371 | 11 才5mA。应该很好作的。OPTO也很容易design,如果你不是对transient 有很高的要求
的话。
coilcraft |
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a*******i 发帖数: 11664 | 12 quality主要是dislocation density, background doping,还有hetero-junction
interface.
for opto-electronics, 我感觉MOCVD好太多了
for electronics devices, MBE也还可以 |
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g******u 发帖数: 3060 | 13 in my commercial vehicle application, microcontroller controlled opto
feedback+ secondary rectification is good and accurate enough. of course I
think in sth like Agilent power supplies, they must use more accurate
methods, another dream company. ( i don't know how can they make 0.1% line
and load regulation)
anyway, I think if you use simple methods, you can design everything of the
power converter yourself, but if you would use sth like DSP, you must have a
small group there. |
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d****o 发帖数: 1112 | 14 D4, D5改成schottky的
另外你的switcher最好和100V那部分分开
用个单独的gate driver
switcher用opto coupler控制
100V。。。安全要求完全不一样了
干活小心
再看看有没有shot through
管子 |
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k******n 发帖数: 2 | 15 最便宜的办法,用IR的gatedriver+bootstrap,但要注意duty cycle的限制
稍贵一些的话,IR有款battery charger专用芯片,集成Mosfet的,记不清楚了
奢侈一点的话,avago和NEC有opto gatedriver+DC/DC converter
无聊的话,用pulse transformer |
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r********r 发帖数: 677 | 16
讨论中文文法? "用"光耦反馈行了吧? 再不行我用英文, use an Opto coupler to feedback 如何? |
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g******u 发帖数: 3060 | 17 solid state relay, as above mentioned. it's just an opto device. |
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b*******h 发帖数: 2585 | 18 有工作经验,III-V的, 以PECVD, Dry etch , METAL为主。
因为实际上III-V族的PECVD, DRYETCH其实也没有什么很大特别。
所以不是III-V可能也可以放宽。
III-V族的PECVD, DRYETCH和主流数字硅芯片的差别大一些,更接近MEMS, OPTO,
POWER Si |
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s***n 发帖数: 678 | 19 I am currently seeking an Optics Manager with a background in infrared
optics and opto-mechanical subsystems. Experience with product development,
customer management, and technical support are required. BS degree in a
technical field and managing or engineering experience and five-plus years
of experience required. I am also seeking a Thin Film Engineer with coating
design, process development, and vapor deposition experience. BS degree,
five-plus years of experience and requires IR coating exp... 阅读全帖 |
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l***y 发帖数: 14 | 20 The Bio- & Nano-Photonics (BNP) Laboratory at the University of Delaware is
currently seeking talented candidates for research assistant positions at
the graduate and/or postdoctoral levels in the areas of bio- & nanophotonics
. Our research interests are two-fold. First, we specialize in developing
optical techniques used to understand the unique properties of novel bio- &
nano-materials. We also use nano-scale engineering to controllably alter
materials properties for potential opto-electro-me |
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s****e 发帖数: 2934 | 21 自己顶一个先
http://optoweb.fis.uniroma2.it/opto/solgel/index.html
The Sol-Gel process allows to synthesize ceramic materials of high purity
and homogeneity by means of preparation techniques different from the
traditional process of fusion of oxides.
This process occurs in liquid solution of organometallic precursors (TMOS,
TEOS, Zr(IV)-Propoxide, Ti(IV)-Butoxide, etc. ), which, by means of
hydrolysis and condensation reactions, lead to the formation of a new phase
(SOL).
M-O-R + H2O èM-OH + R-OH (hy |
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y********1 发帖数: 18 | 22 机械工程专业PhD,今年五月刚刚毕业。另外还有国内的光学专业硕士文凭。
博士期间做过几个项目,第一个是关于微米通道内流体(湍流)快速混合的,涉及到大
量流体力学,电动力学(电混合),和光学测量(fluorescent microscopy).
第二个项目是微流细胞分离装置,涉及到很多biomedical的基本技术,以及micro/nano
fabrication, MEMS技术。
其他还参与过一个(光学)超高分辨率fluid velocity measurement system的搭建,
本人光学基础还是不错的。
软件方面比较熟的就是LabView, Matlab, COMSOL, Solidworks.
目前主要投的都是medical device相关的, 还有就是opto-mechanical enigineer,或
者mechanical design的职位。
详情各位前辈帮忙看看这定位对不对?有内推就更好了。
email: y**********[email protected]
多谢大家! |
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s*********g 发帖数: 1107 | 23 Post-doctoral position in molecular opto-spintronics
A post-doctoral position is available for a motivated scientist with a track
record in spin electronics, molecular electronics and optical spectroscopy
techniques.
Research will take place at the Institute for Physics and Chemistry of
Materials in Strasbourg IPCMS, http://www-ipcms.u-strasbg.fr where a new facility for nanofabrication is being established. This laboratory is funded by a “Chaire d’excellence” fellowship from the French Minist |
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c*******i 发帖数: 160 | 24 nano-electro-mechanical systems
or nano-opto-mechanical systems |
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s*********g 发帖数: 1107 | 25 Post-doctoral position in molecular opto-spintronics
A post-doctoral position is available for a motivated scientist with a track
record in spin electronics, molecular electronics and optical spectroscopy
techniques.Research will take place at the Institute for Physics and
Chemistry of Materials in Strasbourg IPCMS, http://www-ipcms.u-strasbg.fr where a new facility for nanofabrication is being established. This laboratory is funded by a “Chaire d’excellence” fellowship from the French Ministr |
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s*****3 发帖数: 1673 | 26 MS毕业以后在一个小型fab做 III-V opto device的 process,比如VCSEL, LED, diode
之类. 已经工作了两年,学到了不少process方面的东西,有的时候还算是有趣,比较
有挑战性;有的时候就是在做labor work了。。。目前感觉遇到了瓶颈,该熟悉的都熟
悉的差不多了。
最近萌生了再去读一个PhD的想法 ? PIC方向或者是偏design之类的
不知道要不要折腾一下。。。。读完了找工作情况怎么样我也不知道。。。(没有卡)
或者是继续做一段时间跳个大一点的公司?
想了很久一直在纠结,望版上大牛指点! |
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l***y 发帖数: 14 | 27 The Bio- & Nano-Photonics (BNP) Laboratory at the University of Delaware is
currently seeking talented candidates for research assistant positions at
the graduate and/or postdoctoral levels in the areas of bio- & nanophotonics
. Our research interests are two-fold. First, we specialize in developing
optical techniques used to understand the unique properties of novel bio- &
nano-materials. We also use nano-scale engineering to controllably alter
materials properties for potential opto-electro-me |
|