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l*t
发帖数: 10829 | 5 沥血奉献...LOL
在HomeDepot或Lowes就可买到,不贵:
- 立的柱子: 4x4, 用treated较好; 挖12-18"深的坑, 用水泥浇固
- 上面的板条: 4x2, 用unntreated较好 (俺用的是treated)
- 最上面钉上Lattice, 用塑料的较好
- 在关键结合部位,钉上三角既固定又省料
- 用带螺纹的galvenized的钉子, 不易生锈,钉得也牢
Finally:
1. This is a fixed structure. So check with your local HOA to see if you
need to get an approval first.
2. Before digging holes to put the 4x4 posts with concrete, make sure to
call your local utility companies to come to your backyard to mark the
unnderground gas/phone/electricity lines
爬爬。 |
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t*********r
发帖数: 630 | 6 我做的甲板几年都还没完工。 活太累了。LD几次让我加Lattice 都懒得弄 |
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y****2
发帖数: 11909 | 8 牛！👍
Definitions of espalier
a fruit tree or ornamental shrub whose branches are trained to grow flat
against a wall, supported on a lattice or a framework of stakes. |
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j******n
发帖数: 21641 | 9 【 以下文字转载自 Reader 讨论区 】
发信人: wonderlich (左岸，遁去), 信区: Reader
标 题: 一九四七年黄昆给杨振宁的信(节选)
发信站: BBS 未名空间站 (Wed Dec 21 17:54:59 2011, 美东)
发信人: abalone (hope), 信区: Returnee
标 题: Re: 忍心入美国籍吗？
发信站: BBS 未名空间站 (Wed Dec 21 14:12:56 2011, 美东)
给你看一篇文章，也许对你有帮助
最终选择做中国人还是国际人只能follow your heart
个人以为多数自认为重要的选择最后都turns out mean nothing
反而是很多不经意的选择决定了人生的走向
读一九四七年黄昆给杨振宁的信，节选。
（人生态度的境界……）
……你說可能受了個人主義影響的話，使我想起B.C. 地質的王洪楨來Bristol時和我說
的話。他說我們中國的top intellectuals越來越和中國的根脫了連系，慢慢變成了一
種國際人，正和印度和猶太的intellectual走上了同一路徑。這種說法不能否... 阅读全帖 |
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x*******3
发帖数: 8342 | 10 35L f/1.4 LII
Canon files patent for EF 35 f/1.4L II
Patent Publication No. US 7,944,625
Published 2011.5.17
Filled 2009.8.5
Specifications
Focal Distance: 34.59
Fno: 1.45
Half angle of view: 32.02
Image Height: 21.64
Lens Length (mm): 126.93
Back Focus (mm): 37.98
50 1.4, why not mark II?????
Canon patent for EF 50 f/1.4 USM
Patent Publication No. 2011-70032
Published 2011.4.7
Filled 2009.9.25
Specifications
Focal Distance: 51.70
Fno: 1.30
Half angle of view: 22.79
Image Height: 21.64
Lens Leng... 阅读全帖 |
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n******e
发帖数: 141 | 11 The Little Match Girl
by Farmer
Most terribly cold it was; it snowed, and was nearly quite dark, and
evening - the last evening of the year. In this cold and darkness there
sat in front of the SEM a poor little girl, bareheaded, and with naked
feet. When she went out of the lab, she had a coat on, it is true; but
what was the good of that? It was a huge coat, which she could not even
told us when did it come, so large was it. How could she spare valuable
time to go shopping? Back to the working ... 阅读全帖 |
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z*****3
发帖数: 15515 | 12 我认识那个叫4D lattice
,
effort
elementary |
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H********g
发帖数: 43926 | 13 https://www.soest.hawaii.edu/GG/ASK/atmo-nitrogen.html
简单回答为什么大气里最多：
Reply to ASK-AN-EARTH-SCIENTIST
Subject: Abundance of Nitrogen in Earth's Atmosphere
Why is nitrogen the most common element in the earths atmosphere?
The answer lies mostly in three facts:
1. nitrogen is volatile in most of its forms
2. it is unreactive with materials that make up the solid earth
3. it is very stable in the presence of solar radiation.
To understand the abundance of N in the atmosphere, it is useful to... 阅读全帖 |
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r*c
发帖数: 16750 | 14 发信人: Closingbell (转我的贴记住给包子~), 信区: Military
标 题: 英特尔科学奖2016年40人决赛名单出炉 11名华裔学生入围
发信站: BBS 未名空间站 (Thu Jan 21 09:21:35 2016, 美东)
据英特尔科学奖官方网站消息。英特尔科学奖20日公布入围决赛名单。在这份40人的决
赛名单里，共有11名华裔学生入围。
占入围人数近三成的华裔学生分别来自加州，康州，马里兰州，宾州，纽约州和密苏里
州。其中加州和纽约州分别有三名华裔学生入围，马里兰州有两位。
英特尔科学奖（Intel Science Talent Search）是美国一个科学奖项，原本称为西屋
科学奖（Westinghouse Science Talent Search），颁发给优秀的高中学生。英特尔科
学奖是西屋公司于1942年所创设，1998年改称为英特尔科学奖。美国总统乔治•
赫伯特•沃克•布什曾说英特尔科学奖“是科学界的超级碗”。许多著名的
科学家都曾获得该奖，包含罗德•霍夫曼、戴维•芒福德、谢尔登... 阅读全帖 |
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r****a
发帖数: 1350 | 15
1. finding nontrivial upper and lower bounds of critical thresholds for
percolation on 3D lattice, and prove.
2. Prove the unsplittable multicommodity flow problem is NP-hard
3. With the additional constraint that for two given sets S1 and S2
of pairs of vertices, we need to ensure that every pair of vertices in S1 is
on the same side of the cut, while every pair of vertices in S2 is
separated by the cut, write new quadratic program and vector programs for
this constrained maximum cut problem a... 阅读全帖 |
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w********h
发帖数: 12367 | 16 【 以下文字转载自 Returnee 讨论区 】
发信人: abalone (hope), 信区: Returnee
标 题: Re: 忍心入美国籍吗？
发信站: BBS 未名空间站 (Wed Dec 21 14:12:56 2011, 美东)
给你看一篇文章，也许对你有帮助
最终选择做中国人还是国际人只能follow your heart
个人以为多数自认为重要的选择最后都turns out mean nothing
反而是很多不经意的选择决定了人生的走向
读一九四七年黄昆给杨振宁的信，节选。
（人生态度的境界……）
……你說可能受了個人主義影響的話，使我想起B.C. 地質的王洪楨來Bristol時和我說
的話。他說我們中國的top intellectuals越來越和中國的根脫了連系，慢慢變成了一
種國際人，正和印度和猶太的intellectual走上了同一路徑。這種說法不能否認的正確
，很給我一個深刻的印象。同時他又說，他所最不能原諒的是，intellectual在國外打
起長久算盤的。他人很有正義感，見識也地道，所以他這樣說是衷心之語。但是事實卻
也不容否認，在英能久留的可能和... 阅读全帖 |
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w*******e
发帖数: 6802 | 17 发信人: whiterose (抱抱熊和胖胖鱼), 信区: BibleStudy
标 题: Re: 【一年精读圣经】7/7 箴言 第7章
发信站: BBS 未名空间站 (Wed Jul 6 23:39:48 2011, 美东)
Proverbs 7
Warning Against the Adulterous Woman
1 My son, keep my words
and store up my commands within you.
2 Keep my commands and you will live;
guard my teachings as the apple of your eye.
3 Bind them on your fingers;
write them on the tablet of your heart.
4 Say to wisdom, “You are my sister,”
and to insight, “You are my relative.”
5 They will keep you from the adul... 阅读全帖 |
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a*****c
发帖数: 3525 | 18 Making the Smallest, Most Perfect Polymer Films
http://www.newswise.com/articles/view/549354/
Libraries
Science News Keywords
BLOCK CO-POLYMER, LATTICE, LATERALLY ORDERED ARRAY
Contact Information
Available for logged-in reporters only
Description
Rarely do researchers use “transformative” but a new technique may
revolutionize microelectronic storage and photovoltaics and open new vistas.
It’s a faster, simpler way to make defect-free thin polymer films with the
smallest domains ever and ultr |
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x********s
发帖数: 1 | 19 ◇◇新语丝(www.xys.org)(xys.dxiong.com)(xys.3322.org)(xys.xlogit.com)◇◇
南京大学特聘教授刘俊明的学术道德亦存在严重问题（二）
作者：百合愤怒了
4.赤膊上阵，一稿两投
如果说刘俊明1996年的时候一稿两投还有点“抖乎”，知道要“乔作粉饰”，
那么，几年之后摸清了“江湖”门道的他，对于一稿两投就不再抖乎了，看看他
在1999发表在FERROELECTRICS上的论文“Monte-Carlo simulation of the P-E
hysteresis and domain switching in ferroelectric Potts lattice”和2000
发表在APPLIED PHYSICS A上的论文“Dynamic hysteresis for Potts spin
system: a Monte Carlo simulation”就知道，他已经懒得再从文法上“下功夫”
了。不信？你看看摘要好了（资料来源：web of science）：
文七：
Title: Monte-Carlo simulation o |
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M*****c
发帖数: 3306 | 20 应我校土木工程学院长江学者李杰教授的邀请，美国科学院院士、美国工程院院士
、国际著名混凝土专家、美国西北大学教授Z.P. Bazant 于9月25日-28日访问我校。我
校土木工程学院院长朱合华教授会见了Bazant 教授及夫人。
9月25日下午，Bazant教授在土木大楼A101做了题为 Multiscale, Microplane and
Lattice Models: Advantages, Limitations and Localization Problems 的学术报
告，报告会由李杰教授主持。会后，李杰教授学术梯队的师生和Bazant 教授进一步就
Microplane理论的研究及应用现状、多尺度力学在混凝土研究中的应用等问题进行了热
烈的讨论。Bazant教授高度评价了李杰教授在混凝土本构关系和结构可靠性方面的开拓
性研究，对在场师生敏捷的思维、流利的发言表达了真诚的赞赏。Bazant教授在我校访
问期间，参观了我校土木工程防灾国家重点实验室，我校拥有的国际一流的实验设施给
他留下了深刻的印象。
Z.P. Bazant教授是美国科学院、美国工程院及美国艺术科学院院士， |
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j****u
发帖数: 1413 | 21 李巨：徜徉在量子材料世界
新闻原文与照片请见：http://www.ustcif.org/default.php/content/1464/
2012年10月10日，麻省理工学院（以下简称MIT）以其官方网站首页封面图片方式报道
中国科大90级少年班校友李巨教授的成就。 当地时间11日，中国科大校友新创基金会
致电李巨教授表示祝贺。李巨教授提及已得知“再战北马，捐赠海外交流”行动，“一
定要支持”。随即李巨教授立即在中国科大捐赠网（GIVING.USTC.EDU.CN）捐赠感谢母
校的教育。他还祝福母校“ I wish USTC great success in the campaign.”。
图为2012年10月10日，MIT网站首页今日聚焦以全页封面报道方式介绍李巨。
《徜徉在量子材料世界》介绍了李巨教授获得的成果。文章称，李巨从原子尺度设计出
的新材料，在未来新能源领域有着应用。李巨成功了设计了全球最小的电池。该文特别
介绍李巨从他在中国科学技术大学的大学生活，并介绍说：他在中国科大培养了对电子
工程与计算机科学的浓厚兴趣。这些兴趣引导了李巨教授使用材料的计算机仿真手段去
了解如... 阅读全帖 |
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g*****u
发帖数: 298 | 22 在Implementing Data Cubes （Venky Harinarayan， Anand Rajaraman，Jeffery
Ullman,
Stanford University）这篇文章中，提到对于OLAP cube lattice，给定常数k,如何选
择k个节点view，以minimize the total query cost。说这个问题是straightforward
redcution from set cover problem。哪位大虾读过这几篇paper,能讲一下具体怎么
reduce from set cover?谢了。 |
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g*****u
发帖数: 298 | 24 在Implementing Data Cubes （Venky Harinarayan， Anand Rajaraman，Jeffery
Ullman,
Stanford University）这篇文章中，提到对于OLAP cube lattice，给定常数k,如何选
择k个节点view，以minimize the total query cost。说这个问题是straightforward
redcution from set cover problem。哪位大虾读过这几篇paper,能讲一下具体怎么
reduce from set cover?谢了。 |
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h*****9
发帖数: 968 | 25 【 以下文字转载自 Military 讨论区 】
发信人: hzh9999 (一不怕吃，二不怕喝), 信区: Military
标 题: 转帖：中国电子工业离硅谷有多远？？
发信站: BBS 未名空间站 (Sat Mar 5 17:34:37 2011, 美东)
中国电子工业离硅谷有多远？？
来源: 没亊来逛逛 于 2011-03-05 13:28:11 [档案] [博客] 旧帖] [转至博客] [给我
悄悄话] 本文已被阅读：16次 字体：调大/调小/重置 | 加入书签 | 打印 | 所有跟帖
| 加跟贴 | 查看当前最热讨论主题
随着中国近十年的经济虚胖, 国人从浮躁与过份自信到了自狂的地步. 有人甚至说，"
中国电子工业只落后美国三五年". 要是笔者说中国电子工业与硅谷的差距至少有三十
年, 国人一定不服气. 那好, 让我们来比较一下国人最引以为自豪的”华为” 与Cisco
Systems 吧.
没错, 华为占领了美国以外的networking市场. 华为与Cisco Systems好比在唱对台戏,
由于华为的演员工资低, 华为的戏票可以卖得便宜一点. 但是, 但是, Cis... 阅读全帖 |
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发帖数: 1 | 27 What Happened To GaN And SiC?
Early predictions were overly optimistic, but these technologies are
starting to make inroads.
About five years ago, some chipmakers claimed that traditional silicon-based
power MOSFETs had hit the wall, prompting the need for a new power
transistor technology.
At the time, some thought that two wide-bandgap technologies—gallium
nitride (GaN) on silicon and silicon carbide (SiC) MOSFETs—would displace
the ubiquitous power MOSFET. In addition, GaN and SiC were suppos... 阅读全帖 |
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t****a
发帖数: 1212 | 28 个人以为，多花点时间好好学学R吧，之后就不需要excel了。
一点小技巧：在R里用fix命令看data.frame / matrix
另外，基于归纳来观察和分析数据，用一些descriptive的函数来生成表格和图，比直
接用眼睛看来有效率的多。你可以参考R的Hmisc, lattice, plyr, reshape这些
package. |
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O****s
发帖数: 463 | 29 很赞同。科学计算中很多是用Fortran, C, 和C++的混合编程。
Fortran虽然不够灵活，但是数值计算的性能很好：
http://annwm.lbl.gov/bench/talk.ppt;
http://stackoverflow.com/questions/13078736/fortran-vs-c-does-f
因为对于物理中的大体系，是几乎不可能用量子力学去精确求解的，所以实际处理只能
用微扰近似去计算
（即便在漂亮的string theory里，想得到实际有用的信息，当前也多是用微扰去处理
，还没有较好的non-perturbative的理论）
以前做过几年的第一性原理分子动力学模拟计算,因为需要根据薛定谔方程去求解波函
数，用平面波展开去拟合做自洽计算，体系每个周期性结构原子数几十个左右还可以在
32节点每节点16GB内存的并行机上在几天内跑出结果，体系稍大点，上百个原子，就要
个把月了，，，而且很容易出问题，特别是IO是个很大的瓶颈，虽然总体数据量不大，
但计算量非常大，现在国内各大HPC中心不少任务就是跑这个的
类似的，在粒子物理中，Lattice ... 阅读全帖 |
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O****s
发帖数: 463 | 30 很赞同。科学计算中很多是用Fortran, C, 和C++的混合编程。
Fortran虽然不够灵活，但是数值计算的性能很好：
http://annwm.lbl.gov/bench/talk.ppt;
http://stackoverflow.com/questions/13078736/fortran-vs-c-does-f
因为对于物理中的大体系，是几乎不可能用量子力学去精确求解的，所以实际处理只能
用微扰近似去计算
（即便在漂亮的string theory里，想得到实际有用的信息，当前也多是用微扰去处理
，还没有较好的non-perturbative的理论）
以前做过几年的第一性原理分子动力学模拟计算,因为需要根据薛定谔方程去求解波函
数，用平面波展开去拟合做自洽计算，体系每个周期性结构原子数几十个左右还可以在
32节点每节点16GB内存的并行机上在几天内跑出结果，体系稍大点，上百个原子，就要
个把月了，，，而且很容易出问题，特别是IO是个很大的瓶颈，虽然总体数据量不大，
但计算量非常大，现在国内各大HPC中心不少任务就是跑这个的
类似的，在粒子物理中，Lattice ... 阅读全帖 |
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f**********e
发帖数: 1994 | 31 个人不相信这种基于 lattice model／monte carlo／pair potential 作出的结论。尤
其是 Skolnick
的文章。 |
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C*******e
发帖数: 4348 | 32 SbsB structure and lattice reconstruction unveil Ca2+ triggered S-layer
assembly
Nature 2012 doi:10.1038/nature11155
里面提到的这个nanobody就是camelid single chain antibody （heavy chain)
这个方法最初发表于去年
Nanobody stabilization of G protein-coupled receptor conformational states
Current Opinion in Structural Biology
Volume 21, Issue 4, August 2011, Pages 567–572
他们的做法是把目标蛋白打到驼羊身上
从血液里分离淋巴细胞，然后提RNA，做RT，得到antibody mRNA的pool
然后克隆到phage display vector里面
做粗筛
筛出只跟非变性目标蛋白结合的heavy chain antibody
然后跟目标蛋白共表达，做结晶，解结构
我的问... 阅读全帖 |
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c*********7
发帖数: 148 | 33 Nanobody主要是为了锚定 beta adrenoceptor active state吧。对crystal packing
有没有用就不知道了。
SbsB structure and lattice reconstruction unveil Ca2+ triggered S-layer
assembly
这文章我正要看。。。 |
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s****l
发帖数: 10462 | 34 NIH最近又房顶了八个小组，大家看看哪一个最有可能成功？
The new grants are awarded (pending available funds) to:
University of California Santa Cruz, $2.29 million over three years
Principal Investigator: Mark Akeson, Ph.D.
Investigators plan to sequence single DNA molecules by using a nanopore
device comprised of a sensor that touches, examines and identifies each
nucleotide, or DNA building block, in a DNA strand as an enzyme motor moves
it through the pore. The scientists will focus on DNA “resequencing” —
examining th... 阅读全帖 |
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s****l
发帖数: 10462 | 35 NIH最近又房顶了八个小组，大家看看哪一个最有可能成功？
The new grants are awarded (pending available funds) to:
University of California Santa Cruz, $2.29 million over three years
Principal Investigator: Mark Akeson, Ph.D.
Investigators plan to sequence single DNA molecules by using a nanopore
device comprised of a sensor that touches, examines and identifies each
nucleotide, or DNA building block, in a DNA strand as an enzyme motor moves
it through the pore. The scientists will focus on DNA “resequencing” —
examining th... 阅读全帖 |
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a*****c
发帖数: 53 | 36 Rise to prominence[edit]
Schön's field of research was condensed matter physics and
nanotechnology.[3] He received his Ph.D. from the University of Konstanz in
1997. In late 1997 he was hired by Bell Labs, located in New Jersey, United
States. There, he worked on electronics in which conventional semiconducting
elements (such as silicon) were replaced by crystalline organic materials.
Specific organic materials can conduct electrical currents, and in a so-
called field-effect transistor (a ... 阅读全帖 |
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f*******U
发帖数: 19 | 37 Ab Initio and Classical Molecular Modeling of Energy Storage Materials
The Complex Fluids and Multiphase Transport Laboratory within the Department
of Mechanical Engineering and Mechanics at Drexel University is looking for
a well-qualified postdoctoral researcher to work on ab initio modeling of
energy storage materials. The candidate should have experience on
electrochemical energy storage materials. The candidate is expected to
collaborate with other graduate students who work on lattice-Bolt... 阅读全帖 |
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d******w
发帖数: 164 | 38 各位朋友大家好，现在申请绿卡急需审稿机会，我的方向是Transport phenomena and
fluid dynamics, inkjet, CFD, additive manufacturing, Lattice Boltzmann,
printed electronics. 工程方向博士毕业两年，发过相关方向的文章二十来篇，审稿
一直都认真负责。
万分感谢。 |
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b*****r
发帖数: 29 | 39 代朋友发帖
1. Research Assistantship (RA) for a PhD Student in Mechanical Engineering
An NSF-funded research assistant position is available for a new PhD student
in Mechanical Engineering at the State University of New York (SUNY) at
Binghamton. The research is focused on materials printing using a hybrid
inkjet-electrospray technique. The goal is to print highly-ordered
monolayers of functional nanoparticle inks at high throughput. The student’
s research will be experimental; however, close collab... 阅读全帖 |
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b*****r
发帖数: 29 | 40 代朋友发帖
1. Research Assistantship (RA) for a PhD Student in Mechanical Engineering
An NSF-funded research assistant position is available for a new PhD student
in Mechanical Engineering at the State University of New York (SUNY) at
Binghamton. The research is focused on materials printing using a hybrid
inkjet-electrospray technique. The goal is to print highly-ordered
monolayers of functional nanoparticle inks at high throughput. The student’
s research will be experimental; however, close collab... 阅读全帖 |
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v****o
发帖数: 189 | 42 1. D. J. Adams and I. R. McDonald, "Thermodynamic and dielectric properties
of polar lattices", Mol. Phys. 32, 931 (1976)
2. J. G. Powles, R. F. Fowler, and W. A. B. Evans, "The dielectric constant
of a polar liquid by the simulation of microscopic drops", Chem. Phys. Lett.
107, 280 (1984)
包子答谢！ |
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o**a
发帖数: 86 | 44 "The double cubic lattice method - efficient approaches to numerical
integration of surface area and volume and to dot surface contouring of
molecular assemblies." J Comput. Chem. 16, 273-284
Thanks so much! |
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n******e
发帖数: 141 | 45 应该说的照中文的写的
The Little Match Girl
by Farmer
Most terribly cold it was; it snowed, and was nearly quite dark, and
evening - the last evening of the year. In this cold and darkness there
sat in front of the SEM a poor little girl, bareheaded, and with naked
feet. When she went out of the lab, she had a coat on, it is true; but
what was the good of that? It was a huge coat, which she could not even
told us when did it come, so large was it. How could she spare valuable
time to go shopping? Back to t... 阅读全帖 |
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F****I
发帖数: 270 | 47 那为啥K Wilson说“Ab initio quantum chemistry is an emerging computational area that is fifty years ahead of lattice gauge theory"呢
Anderson的Resonance Valence Bond也是从化学系类比来呢？
thinking
LCAO |
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h*******o
发帖数: 1114 | 48 麻烦能否帮我找到支持下面这个观点的文献，太谢谢了！还有两天要交paper.
because the ions in amorphous phase do not suffer from the regular
distortions as they would experience in a crystal lattice, and anisotropic
distribution of the bond-angles is wider than that of crystalline phase.
谢谢! |
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