z**********g
发帖数: 16 | 1 Discussing The Existence of “repulsion particle” And Its Significance
Zhuang Yiliong
Shanghai Institute of Science and Technology Management
Abstract:This report has advanced a assume about the existence of “
repellention” by a kind of new idea. Beginning with this, I have explained
more successfully some import theory questions in the area of the present
physics, cosmology and philosophy ect. At same time a few of new reasons
have been raised But this is only rough idea of physica... 阅读全帖 |
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z**********g
发帖数: 16 | 2 bout “Repulsive particle” hypothesis
Zhuang Yilong
Shanghai Institute of Science and Technology Managemen
Jiading 201800
“Repulsive particle” hypothesis is a new theory of material
action. Contrary to Newton law of universal gravitation, which explains why
an apple on the three falls to the ground, it can be called law of universal
repulsion which explains why an apple grows on the tree. It regards a plank
quantum as a material particle, which is a epulsive particle”
counter... 阅读全帖 |
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z**********g
发帖数: 16 | 3 Repulsion Particle Hypothesis
: Zhuang Yilong
Shanghai Institute of Science & Technology Management
Jiading District of Shanghai, 201800, China
Abstract: The theory of “ Repulsion Particle Hypothesis” is a new theory
of matter interactions. In contrast to Newtons universal gravitation that
the apple drops from the tree, this hypothesis can be called the universal
repulsion theory tha... 阅读全帖 |
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B********f
发帖数: 142 | 4 苹果成功抢购了Particle，这家旧金山的创意咨询公司专长在于Web应用以及使用HTML5
的市场营销项目。
创业公司Particle成立于2008年并获得过明星Justin Timberlake的投资。它制造过社
会化视频服务robo.to，并在UI/UX，HTML5 web应用设计上作为Google，Motorola，
Sony和Zynga等公司顾问，曾为Google，Motorola，Amazon，Yahoo，Sony和苹果做过
HTML5的相关工作。这次交易是在上月底进行的，尚不清楚收购金额。
Particle的部分员工来自Yahoo的用户体验设计小组，而创始人兼CTO Aubry Anderson
曾为苹果在2006和08年做过咨询服务。Particle的十多名员工中并非所有人都会在交易
完成后留在 Apple 。根据LinkedIn上的个人信息，留在 Apple 的员工包括“创新技术
专家”和“用户界面工程师”。
苹果本身重视HTML5（可见于HTML5 历史信息图），而此次收购Particle的原因可能就
是看重Particle在HTML5和Web应用上的能力，同时Pa... 阅读全帖 |
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c****t
发帖数: 19049 | 5 (Reuters) - Scientists around the world said on Friday the discovery of sub-
atomic particles apparently traveling faster than light could force a major
rethink of theories on the makeup of the cosmos, but the findings would
first have to be independently confirmed.
"Extraordinary claims require extraordinary evidence, and this is an
extraordinary claim," eminent cosmologist and astrophysicist Martin Rees
told Reuters.
The CERN research institute near Geneva said measurements over three years
ha... 阅读全帖 |
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C********g
发帖数: 211 | 6 如果你的particle size够大，用超速离心机可以分离.
如果particle size小于5nm,并且particle所属的固体物质密度比较小，很难分开。我
用120000rpm不能从氯苯中离心出7nm的硅particles.
如果你想根据particle size分离得到单一分布的，我想Field Flow-Fractionation可
以做到，表面只有一种有机分子最好。 |
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s*****V
发帖数: 21731 | 7 https://www.quantamagazine.org/20150514-the-particle-that-broke-a-cosmic-
speed-limit/
On the night of October 15, 1991, the “Oh-My-God” particle streaked across
the Utah sky.
A cosmic ray from space, it possessed 320 exa-electron volts (EeV) of energy
, millions of times more than particles attain at the Large Hadron Collider,
the most powerful accelerator ever built by humans. The particle was going
so fast that in a yearlong race with light, it would have lost by mere
thousandths of a hair. I... 阅读全帖 |
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s****e
发帖数: 2934 | 8 理解错我的意思了，我说的particle不是colloid particle我说的particles是hard
particles比如alumina 或者金属什么的，外面包着block polymer形成micelle。我还想
顺便问一下colloid和micelle有什么区别呀？我以为就高分子领域他们是同一个东西呢？ |
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x****u
发帖数: 865 | 9 http://www.csmonitor.com/Science/2012/0622/Did-scientists-find-
Anticipation is rising over the expected announcement soon of more evidence
for the existence of the long-sought Higgs boson particle.
In Pictures: The Large Hadron Collider
Related stories
Are you scientifically literate? Take our quiz
CERN scientists excruciatingly close to discovering Higgs boson
Will 2012 be the year scientists find the 'God Particle'? (+video)
Ads by Google
American Express® Cards
See Our Most Popular Card... 阅读全帖 |
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F******n
发帖数: 160 | 10 This picture is an excellent visaulization on the puzzle of a single
particle's two-slit interference process:
the order of the dynamic process is:
upper-left --> upper-right --> bottom-left --> bottm right.
Note how a single particle picture is torn apart by wave inteference. BUT!
when you measure it, it should be detected as a whole particle again (all
energy of this particle is supposed to be collapsed as a capsule into the
detector -- "quantum collapse") -- that is the difference from the cl |
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M*****8
发帖数: 17722 | 11 【 以下文字转载自 Military 讨论区 】
发信人: MB80528 (肥猫(Contrarian)[食MM而肥]), 信区: Military
标 题: Hot Particles (Fuel Fleas) From Fukushima Continue To Circulate Globally
发信站: BBS 未名空间站 (Fri Apr 26 14:50:00 2013, 美东)
Hot Particles (Fuel Fleas) From Fukushima Continue To Circulate Globally
http://agreenroad.blogspot.com/2012/04/hot-particles-from-fukus |
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M*****8
发帖数: 17722 | 12 【 以下文字转载自 Military 讨论区 】
发信人: MB80528 (肥猫(Contrarian)[食MM而肥]), 信区: Military
标 题: Hot Particles (Fuel Fleas) From Fukushima Continue To Circulate Globally
发信站: BBS 未名空间站 (Fri Apr 26 14:50:00 2013, 美东)
Hot Particles (Fuel Fleas) From Fukushima Continue To Circulate Globally
http://agreenroad.blogspot.com/2012/04/hot-particles-from-fukus |
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M*****8
发帖数: 17722 | 13 【 以下文字转载自 Military 讨论区 】
发信人: MB80528 (肥猫(Contrarian)[食MM而肥]), 信区: Military
标 题: Hot Particles (Fuel Fleas) From Fukushima Continue To Circulate Globally
发信站: BBS 未名空间站 (Fri Apr 26 14:50:00 2013, 美东)
Hot Particles (Fuel Fleas) From Fukushima Continue To Circulate Globally
http://agreenroad.blogspot.com/2012/04/hot-particles-from-fukus |
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M*****8
发帖数: 17722 | 14 【 以下文字转载自 Military 讨论区 】
发信人: MB80528 (肥猫(Contrarian)[食MM而肥]), 信区: Military
标 题: Hot Particles (Fuel Fleas) From Fukushima Continue To Circulate Globally
发信站: BBS 未名空间站 (Fri Apr 26 14:50:00 2013, 美东)
Hot Particles (Fuel Fleas) From Fukushima Continue To Circulate Globally
http://agreenroad.blogspot.com/2012/04/hot-particles-from-fukus |
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o******1
发帖数: 12177 | 15 (CNN) -- Scientists say they have found hints of the existence of the Higgs
boson, a never-before-seen subatomic particle long thought to be a
fundamental building block of the universe.
In a highly anticipated press conference, researchers announced that two
independent experiments at the Large Hadron Collider in Geneva have turned
up signs of the so-called "God particle."
While the experiments haven't yet turned up enough data to confirm the Higgs
boson's existence, experts say finding the elu... 阅读全帖 |
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E******u
发帖数: 3920 | 16 Lederman said he gave the Higgs boson the nickname "The God Particle"
because the particle is "so central to the state of physics today, so
crucial to our final understanding of the structure of matter, yet so
elusive,"[5][6][7] but jokingly added that a second reason was because "the
publisher wouldn't let us call it the Goddamn Particle, though that might be
a more appropriate title, given its villainous nature and the expense it is
causing."[5][8]
http://en.wikipedia.org/wiki/The_God_Particle... 阅读全帖 |
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b********n
发帖数: 38600 | 17 Peter Higgs, the physicist who first deduced and proposed the existence of
the theoretical field now known as the Higgs boson, does not believe in God.
After Leon Lederman, another nonbelieving physicist, had jokingly referred
to the mysterious boson as the “God particle,” Higgs was not happy: “I
wish he hadn’t done it. I have to explain to people it was a joke. I’m an
atheist.” The phrase became part of the title for Lederman’s 2006 book,
The God Particle: If the Universe is the Answer, What is... 阅读全帖 |
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f*****n
发帖数: 970 | 18 【 以下文字转载自 NanoST 讨论区 】
发信人: focuson (xiaochen), 信区: NanoST
标 题: 如何分离nano particle
发信站: BBS 未名空间站 (Thu Apr 15 09:21:36 2010, 美东)
是这样的，我手上有一些nano particle现在混在溶液中，并且极有可能部分与溶液中存
在的一些分子质量在2000-12000的有机分子结合，那样我想知道有多少结合了，有多少
还是nano particle状态就得把他们分开。
不知道用什么办法，超速离心机有没有可能？ |
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j*******e
发帖数: 59 | 19 最近老板要求做single particle tracking。研究的对象是膜蛋白，我自己用Qdot 605
标记了一抗，然后做拿TIRF microscope拍了time lapse video。可以看到结合在细胞
表面上的Qdot-抗体有明显的运动。
正在发愁怎么分析这些数据，我想要得到这些particle在细胞膜上运动的trajectory，
然后根据它分析运动的类型和速率。在网上看到一些信息说ImageJ可以用来做particle
tracking。然后找了教程，自己试着生成trajectory，但是发现得不到任何结果。想
问问谁有类似的经验，ImageJ有什么窍门没有。另外有没有别的常用软件可以做这种分
析。多谢帮助！ |
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f*****n
发帖数: 970 | 20 【 以下文字转载自 NanoST 讨论区 】
发信人: focuson (xiaochen), 信区: NanoST
标 题: 如何分离nano particle
发信站: BBS 未名空间站 (Thu Apr 15 09:21:36 2010, 美东)
是这样的，我手上有一些nano particle现在混在溶液中，并且极有可能部分与溶液中存
在的一些分子质量在2000-12000的有机分子结合，那样我想知道有多少结合了，有多少
还是nano particle状态就得把他们分开。
不知道用什么办法，超速离心机有没有可能？ |
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w*********s
发帖数: 2136 | 21 【 以下文字转载自 WorldNews 讨论区 】
发信人: whiteclouds (/ 参考消息 /), 信区: WorldNews
标 题: Nano Particles used in Untested H1N1 Swine Flu Vaccines
发信站: BBS 未名空间站 (Wed Nov 4 02:00:01 2009, 美东)
Nano Particles used in Untested H1N1 Swine Flu Vaccines
Part III: ‘It’s the vaccines, Stupid!
by F. William Engdahl
Vaccines which have been approved by the responsible government authorities
for vaccination against the alleged H1N1 Influenza A Swine Flu have been
found to contain nano particles. Vaccine makers have been |
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y***t
发帖数: 542 | 23 我看了那么多天新闻，有个问题想了很久，请牛人指点。
现在所有人说的对身体无害/有害/死亡都是建立在立即性效应上，就是人体辐射以后马
上出现身体不适或者立即性死亡。但是我怎么觉得，吸入的那些particles才是关键呢
。大家总是笼统的把现在核泄漏量和x-ray还有宇宙背景辐射做比较，可是这个只是比
较外部辐射。但是宇宙辐射还有医学检查辐射都是体外的，只是在拍照的时候对人有影
响，可是如果吸入体内的话，像铯的半衰期30年，如果不排除体外就是一直对soft
tissue会有影响，引起基因突变和癌变。这个影响是深远的。现在美国已经检测到了空
气中的particles（http://www.insidebayarea.com/top-stories/ci_17637607）。在toproof能测到，那我们人也有很大的概率可以吸进去。这个对人的身体的危害虽然不是急性的，但是潜在的危险却大的多。
为什么大家对这些都只字不提呢。总是比较和x-ray什么的。又有什么意思呢？还是我
想多了。
对日本这个事情高度关注，所以有很多疑问，希望能有牛人出来解惑。我也希望是我想
多了。
最后bless all。 |
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w*********s
发帖数: 2136 | 24 Nano Particles used in Untested H1N1 Swine Flu Vaccines
Part III: ‘It’s the vaccines, Stupid!
by F. William Engdahl
Vaccines which have been approved by the responsible government authorities
for vaccination against the alleged H1N1 Influenza A Swine Flu have been
found to contain nano particles. Vaccine makers have been experimenting with
nanoparticles as a way to “turbo charge” vaccines for several years. Now
it has come out that the vaccines approved for use in Germany and other
European coun |
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o******1
发帖数: 12177 | 26 no...higgs mechanism gives all particles their masses, making the universe
what it is today. it does this by interacting with all the particles throuhg
the weak force. |
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s*********a
发帖数: 801 | 27 "Higgs, an atheist himself, is displeased that the Higgs particle is
nicknamed the "God particle",[75] because the term "might offend people who
are religious".[76]"
from Wikipedia |
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t*****r
发帖数: 448 | 28 who has any idea about simulation of 3D spherical particle packing?
how to determine the particles are not overlay?
thanks |
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w****g
发帖数: 44 | 29 If I have a list of potential energies of a pair particles
r1 E1
r2 E2
r3 E3
how can I obtain the interaction for the particle pairs in all the space ?
sometime this is refered to as a look-up table in MD simulations.
Any body know somebody do this calculations and programs before ??
Many thanks. |
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b****t
发帖数: 34 | 30 【 以下文字转载自 Chemistry 讨论区,原文如下 】
发信人: buffet (Mr.bean), 信区: Chemistry
标 题: polydispersity of particle
发信站: Unknown Space - 未名空间 (Mon Oct 27 15:53:28 2003) WWW-POST
Hi, guys:
Could anybody do me a favor? I am confused by the definition of
polydispersity index(PDI) of particles.
from light scattering, I got PDI value sth like 0.04, however, I know there
is another definition of PDI which is larger than 1, which is defined as:
PDI= Dw/Dn
so how can I get PDI like 0.0 sth ?
thanks |
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b**s
发帖数: 589 | 31 现在作monodisperse PLGA
particle的方法都是什么？普通的solution-precipitation的方法很不可靠。Spray
drier太贵，且分布宽。超声的方法最小也只能做到20 um.
另外要得到5 um的particle怎么分级比较好，用过滤的方法效率很低，离心也不好 |
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c*******n
发帖数: 1648 | 32 Or block copolymer system? to get well defined particle size and morphology?
After that, cleave one block off to get particles:) |
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f*******6
发帖数: 665 | 33 最近在做一个particle size 分析，不知道该怎么进行了，请教这里的专家。。。
我用的是Marlven HPPS分析，要测一个PS衍生物，试了不同的溶剂，总是不能得到稳定
的结果。
能试到溶解最好的溶剂还能看到有很小的颗粒悬浮，反复试了很多次，经常出现2-3个
峰，位置也不同。
我的问题是：
如果重复性不好，是不是问题在溶剂上？如果是很好的溶剂，是不是看不到悬浮的小颗
粒？
不知道单个分子有多大，如果这个高分子衍生物很大的话，有没有可能肉眼看到单个分
子链团？
如果问题不在溶剂上，有没有可能是这种分析仪器不适合高分子长链结构，所有导致重
复性不好？
除此外，那种技术更适用于高分子particle size 分析？
可能都是很傻的问题，我没有太多这方面背景，请大家帮忙拉。。 |
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l******u
发帖数: 2314 | 34 很不幸，对于arc-MWNT，这些graphitic particle几乎是不可能弄掉的 - 因为他们本
质上就是很短的MWNT，也有多层，而且在arc里出来的东西表面缺陷少，很硬骨头的。
唯一的希望就是选择性的溶解或者之后的色谱分离；曾经有人用PPV（参见那个爱尔兰
组在1998左右在Adv Mater上的文章）简单的超声分离，号称MWNT（就是arc做的）能选
择性地被悬浮，谁知道实际效果如何呢。
这么麻烦；现在CVD-MWNT便宜得要命，还干净得很，顶多有点金属，除金属比除
graphitic particle容易多了。还是别折腾arc-MWNT，买点CVD-MWNT算了。
你要做functionalization，CVD-MWNT也是要容易得多。 |
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f*****n
发帖数: 970 | 35 是这样的，我手上有一些nano particle现在混在溶液中，并且极有可能部分与溶液中存
在的一些分子质量在2000-12000的有机分子结合，那样我想知道有多少结合了，有多少
还是nano particle状态就得把他们分开。
不知道用什么办法，超速离心机有没有可能？ |
|
c*****t
发帖数: 198 | 36 There are two kinds of particles in solution and how to detect the distance
distribution between these two kinds of particles? Thank you very much. |
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d**t
发帖数: 1671 | 37 大家都讨论门槛低的老将小将，米犹产党，还是讨论一下欧洲的god particle吧。 |
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p*********r
发帖数: 7944 | 38 wave particle duality，可以用麦克斯韦方程组来解释。
没有这么神秘吧？ |
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M**U
发帖数: 2752 | 39 帮老公求
与Surfactant, cartilage, nano particles, interface有关的。 |
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p*****r
发帖数: 361 | 40 一家公司需要测nano-particle的size distribution。请问有谁知道可以在UCSD或者是
其它什么地方测吗？ |
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p*****r
发帖数: 361 | 41 主要是particle size distribution。
有没有service center提供这样的服务呢？ |
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p*********r
发帖数: 7944 | 43 除了网上，哪里有这个买？3M N95 Particle Respirator 8200 Mask 20ct MMM 8200 |
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发帖数: 1 | 46 大家好！跪求传统化工的审稿机会。我的方向是electrical tomography, 多相流实验
和计算，流态化，particle technology, 反应器设计放大等。
邮a class="__cf_email__" href="/cdn-cgi/l/email-protection" data-cfemail="d135726ba6b0bfb6e0e8e9e6e1e791b6bcb0b8bdffb2bebc">[email protected]/* */
多谢多谢！ |
|
发帖数: 1 | 47 大家好！跪求传统化工的审稿机会。我的方向是electrical tomography, 多相流实验
和计算，流态化，particle technology, 反应器设计放大等。
邮a class="__cf_email__" href="/cdn-cgi/l/email-protection" data-cfemail="23c7809954424d44121a1b14131563444e424a4f0d404c4e">[email protected]/* */
多谢多谢！ |
|
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w****u
发帖数: 1078 | 49 最近打算使用RT方法作个对于人细胞的试验，不知道谁有这方面的protocol.
而且，使用这个Lentiviral Particle对人是否有危害，应该采取什么防护措施。
谢谢 |
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b*******0
发帖数: 48 | 50 请问哪位或实验室有用matamorph软件的，如果买原版的要上千刀。。。有没有那位大
侠有破解版的，或者是可以拷贝的。
顺便问一下用于live cell imaging, particle tracking analysis除了这个matamorph
还有很不好用的image J, 还有别的软件可以用的么？
谢谢 |
|
