t**m
发帖数: 17 | 1 我用visual c++ 6.0 编程, 每次拷贝一段新的程序到一个新的地方, 格式就全乱了,和周
围的程序也不符合对齐的原则了(indent). 我想知道有没有快捷键可以解决这个问题.谢
谢 |
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e*****r
发帖数: 20 | 2 you can set up a accelarate key for indent and unindent by yourself in VC++
周
谢 |
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c*******d
发帖数: 1197 | 3 J. J. Vlassak, W. D. Nix, "Measuring the elastic properties of anisotropic
materials by means of indentation experiments", J. Mech. and Phys. of Solids
42 (8), 1223-1245 (1994)
谢谢了先！
c********[email protected] |
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s****e
发帖数: 2934 | 5 如果测大的样品就用模子压那种两头宽中间细的样条，直接用杨氏模量的仪器拉断样条。如果是小的样品就用spincoating。总之膜的厚度要均匀。可以用SAWS和nanoindentation的方法来测。SAWS
可以测薄的样品，薄到150nm，要测膜的厚度和密度。nanoindentation测厚一点的样品，可以到1um。还有一个叫fracture energy的Gc，这个参数加上stress modulus和young's modulus就
可以表征薄膜的机械性能了。
hardness有好几种，其中一种是用diamond在材料上划一道口子，看口子的深浅，还有一种是Indentation hardness，顾名思义就是压一个口子。这2种都是对于bulk的样品来说的。
所以那种随便用溶剂浇一个膜的俺木有听说过，不是很清楚。 |
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c******h
发帖数: 4573 | 6 我知道那种dogbone样条
我们做杨氏都是普通cast film然后再用模子把膜切成dogbone形状
所以我看你说做杨氏模量不能用在玻璃板上cast的film想问问应该怎么制备膜
条。如果是小的样品就用spincoating。总之膜的厚度要均匀。可以用SAWS和
nanoindentation的方法来测。SAWS
品，可以到1um。还有一个叫fracture energy的Gc，这个参数加上stress modulus和
young's modulus就
有一种是Indentation hardness，顾名思义就是压一个口子。这2种都是对于bulk的样
品来说的。 |
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w********h
发帖数: 12367 | 7 hardness是有特指的,必须有比较严格的测试条件下标定"硬度",
stiffness比较广泛一些,一般的indentation得到的surface modulus就可以表征. |
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f******r
发帖数: 2975 | 8 Hi I am thinking of writing
\sum_{1}^ncos^4(x_i) |
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a********k
发帖数: 11445 | 9 晕死我了。哪位大侠能给大概说一下？包子答谢。google了半天，都是fibonacci
numbers和pascal's triangle的关系。 |
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f*******r
发帖数: 204 | 10 我不做MD,组里由人在做炭管indentation的计算，平时聊得多了知道点。
纳米的东西，你拿有限元搞不定，所以就出了个MD的怪胎，我是觉得比较没意思。 |
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x**u
发帖数: 21 | 11 [帮忙]
Thanks a lot!!!
Viscoelastic characterization of polymers using instrumented indentation. II.
Dynamic testing
Journal of Polymer Science Part B: Polymer Physics
Volume 43, Issue 14, Date: 15 July 2005, Pages: 1812-1824
C. C. White, M. R. VanLandingham, P. L. Drzal, N.-K. Chang, S.-H. Chang
link is here:
http://www3.interscience.wiley.com/search/allsearch?mode=quicksearch&WISindexi
d1=WISall&WISsearch1=dynamic+nanoindentation |
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x***i
发帖数: 15 | 12 机械工程PhD
研究内容主要是nanoscale manipulation and fabrication via atomic force
microscope
研究课题有AFM based nanomanipulation of nanoparticles via sequential
parallel pushing, integrate CAD and nano-indnentation for complex lithograph
, fast localization of carbon nanotube via dynamic sensing and curve fitting
精通C++，QT GUI/MFC编程, AFM操作，nano-indentation, data acquisition card,
control theory, computer graphics (B-spline, NURBS modelling), image and
signal processing
找了几个月了，只有几个电面，觉得定位很有问题
试过以下几个方向皆没有什么回音：QT ... 阅读全帖 |
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d*c
发帖数: 69 | 13 用nano indentation 和 AFM 研究纳米材料的力学性能以后能有什么工业界的前途么？
还是只能往academia跑了？ |
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y***k
发帖数: 289 | 14 这个模量一般叫做 indentation modulus不是杨氏模量，通常要略大一点
如果想得到杨氏模量，应该有很多修正后的公式，或者直接用有限元模拟得到
而且这个也和材料是否各向异性有很大关系，因为这个是multiaxial loading。
不同通常材料领域说纳米压痕得到的模量，大家都清楚是怎么一回事
一般忽略其和杨氏模量的差别
得？ |
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c*******d
发帖数: 1197 | 15 有限元模拟的东西我觉得应该是和实验结果对比吧，毕竟模型还是有些简化，一般来说
如果我测得是比如 （100）的si的杨氏模量， 是不是就用E<100>来表示；
还有测得的indentation modulus 除以 1－poisson'ratio 的平方是不是就是杨氏模量
啊？
另多谢回复 |
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c*******d
发帖数: 1197 | 16 【 以下文字转载自 Engineering 讨论区 】
发信人: colinliud (hed), 信区: Engineering
标 题: 求篇paper－J. J. Vlassak, W. D. Nix，J. Mech. and Phys. of Solids 42 (8), 1223-1245 (1994)
发信站: BBS 未名空间站 (Wed Feb 3 12:20:17 2010, 美东)
J. J. Vlassak, W. D. Nix, "Measuring the elastic properties of anisotropic
materials by means of indentation experiments", J. Mech. and Phys. of Solids
42 (8), 1223-1245 (1994)
谢谢了先！
c********[email protected] |
|
|
x***i
发帖数: 15 | 18 机械工程PhD
研究内容主要是nanoscale manipulation and fabrication via atomic force
microscope
研究课题有AFM based nanomanipulation of nanoparticles via sequential
parallel pushing, integrate CAD and nano-indnentation for complex lithograph
, fast localization of carbon nanotube via dynamic sensing and curve fitting
精通C++，QT GUI/MFC编程, AFM操作，nano-indentation, data acquisition card,
control theory, computer graphics (B-spline, NURBS modelling), image and
signal processing
找了几个月了，只有几个电面，觉得定位很有问题
试过以下几个方向皆没有什么回音：QT ... 阅读全帖 |
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X******0
发帖数: 181 | 19 借这个版，看有没有机会，谢谢！
ME Ph.D 但实际上做的是materials，主要经验如下：
1. 我们自己搭建了一个PVD/CVD hybrid system, 一般用reactive sputtering
Nitride coatings, TiN, CrN, Si3N4, 也镀纯金属，还有AlSi 等都可以。熟悉各种真
空泵和RGA，我们的系统两级真空，base pressure 可以到-10数量级Torr，我们有额外
的两个Plasma generator 可以提高Plasma density 而不只是在gun附近区域。
2. 熟悉SEM/FIB/EBSD/EDS, TEM/EDAX, XPS, Nanoindentation, AFM, Instron/MTS
universal machines, metallography specimen preparation 等设备的维护和操作。
3. Micro/nanomechanics: 研究了不同金属单晶nano indentation "size effect"的一
些表现，应变梯度理论，以及简单的FEA simula... 阅读全帖 |
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t*****r
发帖数: 1765 | 20 （纽约州），这就是你在
国内的认证机构会收到这样一份表格，以前主要是给学校填的，如下，英文还看不明白
的，中文翻译在最下面。本文仅供参考交流，如有律师中介协助办理，以律师为准。
Verification of Academic Record
CGFNS P.O. Box 8628，Philadelphia PA 19104-8628 USA Telephone(215)349-8767
Fax(215)349-0026 Email:e****[email protected]
Applicant Name:____1____ Date of Birth:______2_______
Type of Program:______3___ Years of Education Required for Admission:______4
____
Name of Degree/Diploma Awarded:________________5____________________________
(Please print title of degree/diploma in native lang... 阅读全帖 |
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b**********i
发帖数: 1059 | 21 现在用SPSS16.02， 打印出来的syntax code每行都顶格从第一列打起来，原来为了程
序可读性用tab设的indentation都丢了。程序的结构不容易看清，有没有人知道哪儿可
以设置一下。记得原来用version15 的时候还是好好的。 |
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s*r
发帖数: 2757 | 23 it is not good to let editor decide when to indent. |
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D******n
发帖数: 2836 | 24 People are crazy in our company..
ex1: File2 includes file1. File1 has a "%macro xxx" but it does not have
"%mend", turned out it is in file2 while file2 has many macros too.
ex2: macros inside a macro...wtf....
other stuffs, no indents, no comments... |
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S******y
发帖数: 1123 | 25 I am always adding 'near-excessive' level comments to my SAS, R & Python
code to make sure other people can pick it up and put it to use immediately
(i.e., zero cost of adoption). I also make sure my programs are readable and well-structured. It makes me feel good, and we all become
more productive. It is a win-win situation. (In Python, it forces
indentation. So good coding styles are enforced automatically.)
But I fully understand what people mentioned here can be described as a "
dark-art" |
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h******e
发帖数: 1791 | 26 用ultraedit啥都行，还能自动indent，语法文件自己可以改。 |
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o**m
发帖数: 828 | 29 有阿
emacs + ess 可以阿
try
C-x h
C-M-\ |
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D******n
发帖数: 2836 | 30 C-M-\ = ESC + \ ?
don't know emacs much. |
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D******n
发帖数: 2836 | 31 nvm i got it.
but it is far from perfect,it misindents for some places. I wrote sth like
that for vim too, just works fine as well, not perfect. |
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P****D
发帖数: 11146 | 35 做，而且还有注释。虽然其实没人看我的code。 |
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D******n
发帖数: 2836 | 36 LOL there is a paper about all the tricks u can do in messing up your SAS
code with the intent to keep your job.
I would like to use FCMP too but my company is still using SAS 9.1.....
to D, |
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A*******s
发帖数: 3942 | 37 Dashagen should write a script called "indents_and_comments_remover" |
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d*******o
发帖数: 493 | 39 That is a good idea. I used to think about writing a macro to do the same
job, but really don't have time.
Xie Yihui in ISU wrote a package to do such thing for R code. |
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P****D
发帖数: 11146 | 40 这个有幸听原作者亲自讲解过一回，我们听众都笑死了…… |
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D******n
发帖数: 2836 | 43 what things do u usually put them in uppercases?
I found capitalized words are hard to read. |
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P****D
发帖数: 11146 | 44 I cannot say for SONYYY. But I have seen people capitalize the proc names. I
don't think that helps much as long as you read the code in an editor with
syntax highlighting... |
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D******n
发帖数: 2836 | 45 Looks like I replied to the wrong post again.
that makes sense though for black and white editors.
names. I
with |
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S****Y
发帖数: 4634 | 46 I cap procs, functions, etc. |
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D******n
发帖数: 2836 | 47 正如pharmD所说，你们没有用带语法高亮的editor吗？有了这个关键词大写没什么必要
了吧？ |
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S****Y
发帖数: 4634 | 48 有时候直接connect server就看不到。
还有也不是所有关键字enhanced editor都变色的 |
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s*r
发帖数: 2757 | 49 those codes copied from sas help are usually in uppercase |
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s*******f
发帖数: 148 | 50 makes a difference in macro. save u tons of efforts in debugging macros. |
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