q*d
发帖数: 22178 | 1 吗?
http://news.xinhuanet.com/english/world/2013-04/03/c_132283285.
AMS announces first results in search for dark matter
English.news.cn 2013-04-03 23:22:14
Samuel Ting, Chinese-American principal scientist for the Alpha Magnetic
Spectrometer (AMS) project, is interviewed at the European Organisation for
Nuclear Research's (CERN) near Geneva, April 3, 2013. The AMS team led by
Nobel laureate Samuel Ting announced on Wednesday the first results in the
search for dark matter, re... 阅读全帖 |
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f**d
发帖数: 768 | 2 这是一本计算神经科学的优秀著作，全文拷贝这里（图和公式缺），有兴趣的同学可以
阅读
如需要，我可以分享PDF文件（－－仅供个人学习，无商业用途）
From Computer to Brain
William W. Lytton
From Computer to Brain
Foundations of Computational Neuroscience
Springer
William W. Lytton, M.D.
Associate Professor, State University of New York, Downstato, Brooklyn, NY
Visiting Associate Professor, University of Wisconsin, Madison
Visiting Associate Professor, Polytechnic University, Brooklyn, NY
Staff Neurologist., Kings County Hospital, Brooklyn, NY
In From Computer to Brain: ... 阅读全帖 |
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c**m
发帖数: 1632 | 3 Just realize that they were trying to sell the same story as I supposed~~
Really admire these people could work 8 yrs from 2002 to 2010 without being
de-funded(maybe defunct is a better word~~:) ).
http://www.nature.com/nature/journal/vaop/ncurrent/full/nature09610.html
Antimatter was first predicted1 in 1931, by Dirac. Work with high-energy
antiparticles is now commonplace, and anti-electrons are used regularly in
the medical technique of positron emission tomography scanning. Antihydrogen
, th... 阅读全帖 |
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a*****o
发帖数: 209 | 4 Positron emission or beta plus decay (β+ decay) is a particular type of
radioactive decay, called beta decay, in which a proton is converted to a
neutron, and it releases a positron and a neutrino. |
|
G****e
发帖数: 11198 | 5 http://en.wikipedia.org/wiki/California_Institute_of_Technology
赵忠尧：Chung-Yao Chao, PhD 1930 – first scientist to capture positrons
through electron-positron annihilation; father of atomic energy
enterprise
of China
奥本哈默：Frank Oppenheimer, PhD 1939 – Manhattan Project physicist,
founder of the Exploratorium
谈家桢：C. C. Tan, PhD 1936 – father of Chinese (modern) genetics
http://en.wikipedia.org/wiki/C._C._Tan
Gordon E. Moore, PhD 1954 – co-founder of Intel Corp. and author of
Moore's
law
Theodore v... 阅读全帖 |
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c******n
发帖数: 16666 | 6 别的我不懂 第二个的话 除了自带一个电磁场来屏蔽 还可以在船壳里面灌水
我记得以前在某个科幻小说里看到过
wiki
Beta particles (electrons) are more penetrating, but still can be absorbed
by a few millimeters of aluminum. However, in cases where high energy beta
particles are emitted shielding must be accomplished with low atomic weight
materials, e.g. plastic, wood, water, or acrylic glass (Plexiglas, Lucite).[
6] This is to reduce generation of Bremsstrahlung X-rays. In the case of
beta+ radiation (positrons), the gamma radiation from the electron... 阅读全帖 |
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M*********m
发帖数: 2024 | 7 From what you said, you are not a physics major, period. You can brag to the
moon, but finally you will fall to the earth. :)
See, physics theory set its foot on provable facts. I could prove you are
not a physics major. You were talking about positron-electron annihilation
and the dimension reduction there. If you are physics major, you would know
there is no dimension reduction in positron-electron annihilation.
See, I proved you didn't know physics. What is your say? hehe.
//reading your post... 阅读全帖 |
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g****g
发帖数: 1828 | 8 What is direct CP violation?
By Davide Castelvecchi
Direct and indirect CP violation are two mechanisms that break the symmetry
between the behavior of matter and anti-matter. The BaBar experiment first
discovered indirect CP violation for B and anti-B (or B-bar) mesons in 2001.
BaBar’s new result is the first observation of direct CP violation for B/
anti-B mesons.
The BaBar Detector at SLAC. (Photo by Peter Ginter)
Historically, physicists believed that in a mirror image of the world all
laws... 阅读全帖 |
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z**********g
发帖数: 16 | 9 继续发表有关斥力子的文章，请指正。
“斥力子理论”对物理学的影响1
庄一龙
近年来，由中国学者创立的“斥力子理论”，经过中国科学院《科技促进发展》《
科技成果管理与研究》、《科技中国》、《中国科技财富》、《中国科技成果》等主流
科技杂志报导后，引起了学术界广泛重视。那么，这一理论究竟有那些观点震动了学术
界，值得人们如此关注呢？
“斥力子理论” 是一种新物质作用理论，实际上也是一种物理哲学理论。它的代
表性文章是《论“斥力子”的存在及其意义》，另外还包括《相对性效应和牛顿定律的
本质》、《物理学中精细结构常数的理论推导与解释》等几十篇论文。同牛顿的苹果从
树上掉下来的万有引力理论相对应，这是一个可称作“苹果如何转移到树上去的‘万有
斥力’理论”。该理论认为，地面的物体一旦动起来，不管方向如何，都具有一种挣脱
地球引力的能力，就好象物体吸收了一种对抗万有引力的物质那样。“斥力子理论”把
普朗克能量子看作是一种对抗引力的实物粒子，称它为“斥力子”，并认为物体运动状
态的改变就是由于吸收或释放斥力子造成的。
在思维方法上，它有两个根本突破：其一,是把抽象的能量概念实物化，使能量有
一个实物载... 阅读全帖 |
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d*b
发帖数: 21830 | 10 TONGXUE这个人就是白痴，自己没卵，还以为全天下的男人都没卵。
先给你这种傻逼科普下吧，MRI做神经动力学研究是nuclear medicine比较热门的方向
，首先你要有positron emitter,比如F18，也有其他的photon emitter, photon 能量
超过1.02Mev，就会通过pair production成一个正电子，一个负电子，这个电子对是
back to back的，通过测量这个电子的轨迹，可以非常精确的测量出positron emittor
的位置。测量这个的仪器工程上叫gamma camera, 医学上叫PET或者SPECT， 这是基本
原理。
下一步就是你们生物傻逼们做的事，把F18或者photon emitter集成到bio marker上，
这个bio marker只能跟某些receiptor结合：比如cancer cell,比如神经cell, 这样，
集成了emitter的bio marker注射到人体内，迅速跟receiptor结合，然后用gamma
camera每几秒探测一次bio marker的精确位置，这样就可以判断人体内，比... 阅读全帖 |
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c**i
发帖数: 6973 | 11 You say, "你跟本不用查找专业文献，反渗透膜是porous 的高分子材料，有点高分子
物理知识的人都知道温度降低，高分子链的热物理性能和构型会发生改变，这样膜的孔
径就会收缩，透水率就会明显降低."
In the primary school, we learn that if we heat a metal with a hole, the
hole will be bigger. Search the Web, with the terms (metal hole heat).
What is used in reverse osmosis (RO) is not metal but polymer. Thus there is
nothing intuitive about how pore will behaves. Indeed emperically there are
two types of pores in a RO membrane.
(1) That temperature affects membrane permeability is a fact. ... 阅读全帖 |
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R********n
发帖数: 5904 | 12 这段历史大概被彻底否毛及冷战给掩盖了。从一定程度说，夸克是从中国这窃取的idea？
http://www.nytimes.com/2006/12/05/science/05china.html?_r=1
China Pursues Major Role in Particle Physics
The superconducting magnet for the Large Hadron Collider near Geneva.
This was no idle diversion. According to natural dialectics, which formed
the philosophical underpinnings of Marxism, the entire universe, from top to
bottom, was seething with tension and change. As a result, Mao thought,
nature should be infinitely divisible.
“Take a footlong stic... 阅读全帖 |
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L***6
发帖数: 8307 | 13 可见光photon动量太小，发生反应的cross section非常小，就是概率/反应率很小，一
般都是大型加速器里的高能光子会有这种反应，即使有electron positron pair产生，
也不容易分离，很快会反应湮灭成能量，即再以光子的形式释放出去
感觉菌斑都是生化索男为主啊，没几个正经学过点gauge theory的 |
|
s*****V
发帖数: 21731 | 14 【 以下文字转载自 Physics 讨论区 】
发信人: saturnV (土星五号), 信区: Physics
标 题: 王贻芳：从中微子研究看中国高能物理发展
发信站: BBS 未名空间站 (Thu Sep 1 03:06:23 2016, 美东)
【国家科学评论】NSR访谈｜王贻芳：从中微子研究看中国高能物理发展
2016-08-24|文章来源：NSR |浏览次数： |【大 中 小】
2012年3月8日，中国科学院高能物理研究所所长王贻芳代表大亚湾中微子研究团队
宣布，发现中微子第三种振荡模式，被称为“中微子研究道路上的里程碑”。然而王贻
芳和他的团队显然并不止步于此：正在建设的江门中微子实验基地将自主研制更大的探
测器并预计于2020年建成开始运行，届时中微子的质量顺序有望在实验中测出，成为中
微子研究的下一个重大突破。
实际上，几十年来包括美国、欧洲、日本、中国，都在试图寻找中微子并弄清它精
灵古怪的“脾气”。科学家相信，中微子的深入研究将揭示宇宙演化的重大问题，比如
为什么我们的宇宙只大部分是物质而不是反物质等。
这并不容易。虽然时时刻刻都有中微子像无数的流星一样划过天... 阅读全帖 |
|
发帖数: 1 | 15 张首晟团队发现“天使粒子” 杨振宁：获诺奖只是时间问题
2017年07月21日 07:26:25
来源：凤凰科技 作者：白杨
18308人参与 3644评论
张首晟
凤凰科技 白杨
7月21日凌晨，张首晟及其团队在美国科学杂志上发表了一项重大发现：在整个物理学
界历经80年的探索之后，他们终于发现了手性Majorana费米子的存在。
这一发现，验证了由意大利理论物理学家Ettore Majorana在80年前提出的预测——存
在一类没有反粒子的粒子。同时也证明了存在一种比量子还小的单位，这将对现在的量
子理论带来巨大的改变。
张首晟将这一新发现称为“天使粒子”。普通群众可能暂时难以理解这一发现，但是对
基础物理界来说，这或将开启一个新的时代。
80年漫长的寻觅
1928年，英国理论物理学家保罗·狄拉克（Paul Adrie Maurice Dirac）提出了著名的
狄拉克方程式。这一发现，从理念上预言了正电子的存在，狄拉克提出：宇宙中每一个
基本粒子必然有相对应的反粒子。
狄拉克和刻在他墓碑上的方程
1932年，美国物理学家安德森在研究宇宙射线时，无意间发现了狄拉克预言的正电子。
从此... 阅读全帖 |
|
发帖数: 1 | 16 有些人是永远叫不醒的。
当然这文章最扯的是作者估计压根儿没读过NATURE的原文。。
文章的标题是“Direct detection of a break in the teraelectronvolt
cosmic-ray spectrum of electrons and positrons”，重点压根儿就不在1.4TEV的峰
而是1TEV的截断，这个统计上是显著的，那个峰差不多3sigma，再积累2年数据差不多
能到5sigma，到时候再发个大新闻。当然实际上文章本身包括开发布会的时候都非常保
守，即便将来确认峰的存在也不是存在暗物质的直接证据。
原文中真正提到1.4TeV的地方就一句话
“Further statistics will allow more precise measurement of the CRE
spectrum up to higher energies of about 10 TeV and, crucially, test
whether there is any edge-like feature that may be generated by
... 阅读全帖 |
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i******r
发帖数: 1175 | 17 鱉完成的這量子計算模擬落後有10年了吧。量子計算領先梯隊裏沒有中國團隊。沒有一
樣重要研究成果是中國人的。
Timeline[edit]
Main article: Timeline of quantum computing
In 1959 Richard Feynman in his lecture "There's Plenty of Room at the Bottom
" states the possibility of using quantum effects for computation.
In 1980 Paul Benioff described quantum mechanical Hamiltonian models of
computers[57] and the Russian mathematician Yuri Manin motivated the
development of quantum computers.[58]
In 1981, at a conference co-organized by MIT and IBM, physicist ... 阅读全帖 |
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w**t
发帖数: 3247 | 18 Are you sure they used positron beam? |
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s*****g
发帖数: 180 | 19 ECT uses single photon emitter such as 99mTc; PET uses positron emitter such
as 18F. The mechanism is different. PET/CT is the fusion of PET and CT.
Usually PET is more sensitive but it is more expensive. As I mentioned, for
bone metastasis, 99mTc-MDP scan (one sort of ECT) is good enough, 18F-FDG/
NaF scan may or may not add value to it. |
|
u*****a
发帖数: 6276 | 20 1 horse + 1 donkey = 1 mule
1 electron + 1 positron = two photons |
|
k******s
发帖数: 237 | 21 不知道大家不？想一想还是讲一讲。
总之， 如果你是搞医的，会觉得医学文章容易读。让你读COMPUTER文章你会觉得难，
如果二个文章文法相同。 道理在于医学术语你用CHUNKING缩的很小，可以 Free
working memory。 COMPUTER术语不能CHUNKING， 不能Free working memory, working
memory 的含量每个人都差不多，越能Free working memory就越用它来思考问题。
孩子的IQ都差不多。 学的好不在于IQ， 而在与他记了多少Hard fact， 记多的就能
Free working memory, 越能好好思考问题,养成一良性循环. 在我的贴子， 我提供大
量的图书不是乱做， 我就是让孩子通过反复，不费力记住大量Hard fact, 越多越好
，比如 electron‘s anti-matter positron. 不需要懂，我也不懂，记住就好了 这样
,我认为才是不输在起跑线上。一本很好的书讲的经验。
现在社会竞争这么激烈，没才能如何活。是否HOMESCHOOL我不再讲了。个人意见不一样
。这个我还是想讲一讲，... 阅读全帖 |
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r******g
发帖数: 22 | 22 We are looking for a postdoc with experience in synthetic organic
chemistry or related discipline. Previous experience with handling
radioactive PET or SPET radiopharmaceuticals for preclinical and/or
clinical application would be an advantage, but are not required.
Duties will involve the development, synthesis and evaluation of novel
PET probes labelled with short-lived positron emitting radioisotopes(C-
11,F-18) for molecular imaging.
if you are interested in, please contact with me by email:... 阅读全帖 |
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r******g
发帖数: 22 | 23 We are looking for a postdoc with experience in synthetic organic
chemistry or related discipline. Previous experience with handling
radioactive PET or SPET radiopharmaceuticals for preclinical and/or
clinical application would be an advantage, but are not required.
Duties will involve the development, synthesis and evaluation of novel
PET probes labelled with short-lived positron emitting radioisotopes(C-
11,F-18) for molecular imaging.
if you are interested in, please contact with me by email:... 阅读全帖 |
|
h***e
发帖数: 20195 | 24 【 以下文字转载自 Military 讨论区 】
发信人: wayofflying (小破熊), 信区: Military
标 题: 雅虎上米国、三哥和小日本的评论
发信站: BBS 未名空间站 (Sun Jun 17 13:31:15 2012, 美东)
米国网民的评论。这是美国雅虎上面的：
?
0users liked this commentPlease sign in to rate!Please sign in to rate!
0users disliked this comment
Arctic fox ? 16 mins ago
Now are they, like Americans and Russians, going to wonder around the
Earth at 300-400 km above the surface and call it "space" too? Or are they
going to higher than 600 km where the electrons and positrons ... 阅读全帖 |
|
a********9
发帖数: 31 | 25 keywords: Anemia, Sickle Cell; Acute Chest Syndrome; Positron Emission
Tomography; Fluorodeoxyglucose F18; Neutrophil Activation
有兴趣发CV到[email protected]
/* */,需要专业相关，请仔细阅读，不要只写一
段。 |
|
k**u
发帖数: 687 | 26 发信人: chenzq (positron), 信区: Japan
标 题: 关于订回国机票
发信站: The unknown SPACE (Tue Jun 10 08:42:33 2003) WWW-POST
有人知道这个网址吗？
http://www.ab-road.net/air/top.shtml
是一个日本朋友告诉我的。感觉不错。 |
|
h***e
发帖数: 20195 | 27 【 以下文字转载自 Military 讨论区 】
发信人: wayofflying (小破熊), 信区: Military
标 题: 雅虎上米国、三哥和小日本的评论
发信站: BBS 未名空间站 (Sun Jun 17 13:31:15 2012, 美东)
米国网民的评论。这是美国雅虎上面的：
?
0users liked this commentPlease sign in to rate!Please sign in to rate!
0users disliked this comment
Arctic fox ? 16 mins ago
Now are they, like Americans and Russians, going to wonder around the
Earth at 300-400 km above the surface and call it "space" too? Or are they
going to higher than 600 km where the electrons and positrons ... 阅读全帖 |
|
h***e
发帖数: 20195 | 28 【 以下文字转载自 Military 讨论区 】
发信人: wayofflying (小破熊), 信区: Military
标 题: 雅虎上米国、三哥和小日本的评论
发信站: BBS 未名空间站 (Sun Jun 17 13:31:15 2012, 美东)
米国网民的评论。这是美国雅虎上面的：
?
0users liked this commentPlease sign in to rate!Please sign in to rate!
0users disliked this comment
Arctic fox ? 16 mins ago
Now are they, like Americans and Russians, going to wonder around the
Earth at 300-400 km above the surface and call it "space" too? Or are they
going to higher than 600 km where the electrons and positrons ... 阅读全帖 |
|
|
f********t
发帖数: 4574 | 30 谢谢。现在小锁有5个mini，2个positron，一个vaporlock，一个sentinel，再添一个就
暂时够用了。最喜欢DMM sentinel，strength比vaporlock要好，做工好的就太多了，
只可惜查了一下，好像没说munter compatible.
Product Weight Strength (Gate-Closed) Strength (Gate-Open)
Strength (Minor-Axis) Gate Opening Rope Bearing Surface Width
Catalogue No
Sentinel Screwgate 54g 24kN 8kN 10kN 20mm 9.2mm A262
Vaporlock
Weight :
52 g, 1.8 oz
Closed Gate Strength :
21 kN, 4721 lbf
Open Gate Strength :
8 kN, 1798 lbf
Min |
|
h********r
发帖数: 3291 | 31 Blowouts, Closeouts & Blems
http://www.gearexpress.com/Merchant2/merchant.mv?Screen=CTGY&Store_Code=G&Category_Code=BLW
32634 Black Diamond "Mother of All Camalots" Set #0.4 - #6 (9 Cams)
$580.00 In Stock
3370B BD Zodiac Gear Sling - Size S/M - BLEM $24.95 Sold Out!
4444B Black Diamond Airlock Locking Carabiner - BLEM $8.99 In
Stock
3366CB Black Diamond Hotwire Carabiner - BLEM $6.39 Sold Out!
2223BB Black Diamond Positron Bentgate Carabiner - |
|
f********r
发帖数: 3155 | 32 1. MSR MiniWorks EX Water Filter
有何优缺点？跟Katadyn Hiker Pro比呢?
2. Sea To Summit Reactor Thermolite Mummy Bag Liner
有Adds up to 15 degrees of warmth这么神奇吗？耐用性如何，起球不？
3. 想买几个小locking carabiner，换到quick draw上，保护关键的地方。有比Black
Diamond Positron更轻便的吗？
另外抱怨一下，我的20% off coupon 刚过期，TNF Mountain 25就打折了。 |
|
c*******r
发帖数: 13580 | 33
印象中katadyn轻一点？我的都两年没用过了
Black
Positron is not light at all at 56g. check out Vaporlock. Yes, it's bigger
and even ligher(51g). If you want to get the lightest possible locker, check
out Trango Superfly, it's 41g, hardly heavier than a regular non locking
biner. Drawback: it's not kelock. MadRock SuperTek is 43g and keylock,
making it perfect for personals. I have a few QDs with lockers but I don't
use them a lot. I'd usually use an alpine draw if I worry about it. |
|
c*******r
发帖数: 13580 | 34 keylock is a feature of the nose. take a look at quicksilver and compare it
with, say, vaporlock/mini/positron. it doesn't have the snag on the nose and
it's a lot easier to clip/unclip ropes and cords. Most of my biners are
keylock. Those that are not, I use them only to clip into other biners or
chains. |
|
c*******r
发帖数: 13580 | 35 alpine draws are fine. I personally use QDs for sport climbing though. If
you are going to get some QDs, one piece of important advice: get some with
biners without teeth, e.g. petzel spirit, wild country helium, and BD
positron. |
|
h***e
发帖数: 20195 | 36 【 以下文字转载自 Military 讨论区 】
发信人: wayofflying (小破熊), 信区: Military
标 题: 雅虎上米国、三哥和小日本的评论
发信站: BBS 未名空间站 (Sun Jun 17 13:31:15 2012, 美东)
米国网民的评论。这是美国雅虎上面的：
?
0users liked this commentPlease sign in to rate!Please sign in to rate!
0users disliked this comment
Arctic fox ? 16 mins ago
Now are they, like Americans and Russians, going to wonder around the
Earth at 300-400 km above the surface and call it "space" too? Or are they
going to higher than 600 km where the electrons and positrons ... 阅读全帖 |
|
b*s
发帖数: 82482 | 37 positronics！
他自己就是electronics... |
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k****e
发帖数: 4262 | 38 what would happen if a neutron lost a positron ? |
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s*x
发帖数: 8041 | 39 a positron came in for a beer, the bartender turned around and asked the
neutron: I thought I heard someone asking for a beer, hmmm, where's that
electron? he forgot to take his $100 bill...
$ |
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i****s
发帖数: 729 | 42 are you sure? proton and electron will come up all together?
you are so "Wen Ke Sheng" zeze~~
positron with electron,
individual proton and nutron can be considered as threesome :) |
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M*********m
发帖数: 2024 | 43 Yep, completely agree. I was trying to communicate with layman why this
dimension thing is purely gibberish, they became so mad at me. I don't know
where this madness comes from, this sudden fervor of knowing the M-theory
for extra dimensions etc.
Talking about positron-electron annihilation, there is no dimension
reduction at all. These people are talking nonsense presumptiously.
Anyway, stay away from the crowd. They know nothing and they run over you. |
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M*********m
发帖数: 2024 | 44 It doesn't make any sense to me even for positron-electron annihilation. He
just played with his understanding of "dimension" while knowing nothing. |
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M*********m
发帖数: 2024 | 45 No personal attack, please.
If you consider my saying you are not a physics major as an attack, I have
to say that is the hard truth you have to swallow.
Now, just show me a tiny grain of decency, tell me why there is dimension
reduction in positron-electron annihilation or polarized light?
It doesn't make any sense any more if we have this finger pointing
discussion, and wasting our lives on gibberish. |
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S****e
发帖数: 172 | 46 发信人: himself (白天不泡网), 信区: Philosophy
标 题: 书摘与读书笔记:意识的自体验及其面对的脑医学技术2,End
发信站: BBS 水木清华站 (Tue Dec 26 18:44:53 2000) WWW-POST
2.工程或临床上脑医学镇痛与刺激欣快体验技术
痛觉的唯一积极作用是预警。绝大多数来自生理与底层心理的重复的痛苦体验
是完全
不必要的。神经科学中对镇痛的研究已经较深入，在医学上早在东汉年间中国人就
使用了
麻药。但麻醉在现在的临川医学中仍然有非常重要的作用，经验丰富的麻醉师可以
让整个
医院的外科手术成功率显著提升。但从心理学上深究，用局部麻醉来消除身体部位
的痛苦
或用完全麻醉消除心理的痛苦与切处受害部位、甚至安乐死并无本质区别。
最近的D. Price等人的实验用通过Positron emission tomography技术揭示在
脑组织
受痛觉或其他不快感觉的刺激下，anterior cingulate cortex神经活动显著活跃,
而同
时主要的somatosensory cortex(感觉皮层)的生理活动可以无显著变化. 这些发 |
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s*****g
发帖数: 7857 | 47 New Highlights:
1) Autograph opportunity by Dr. Weimin Wu for his autobiography and newly
released book, as well as meet him in person!
Dr. Wu was among the pioneer scientists who helped to develop China's first
atomic bomb and to launch its first satellite. He also participated in
building the first Chinese electron-positron collider. Another extraordinary
feat is that he sent out the very first e-mail from China on 25 August 1986.
2) Volunteering opportunity for college and high school s... 阅读全帖 |
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s*****g
发帖数: 7857 | 48 New Highlights:
1) Autograph opportunity by Dr. Weimin Wu for his autobiography and newly
released book, as well as meet him in person!
Dr. Wu was among the pioneer scientists who helped to develop China's first
atomic bomb and to launch its first satellite. He also participated in
building the first Chinese electron-positron collider. Another extraordinary
feat is that he sent out the very first e-mail from China on 25 August 1986.
2) Volunteering opportunity for college and high school s... 阅读全帖 |
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j**u
发帖数: 6059 | 49 The U.S. Food and Drug Administration (FDA) announced last week that it has
given 510(k) clearance to a new mobile radiology application developed by
Cleveland, Ohio-based MIM Software. The software, called Mobile MIM, allows
physicians to view medical images on Apple's iPhone and iPad mobile devices.
Announced last week, the move marks the first time that the FDA has given
clearance to a mobile health application that will help clinicians view
images and make medical diagnoses based on computed... 阅读全帖 |
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c****q
发帖数: 27 | 50 【 以下文字转载自 Physics 讨论区 】
发信人: chenzq (positron), 信区: Physics
标 题: 请教一个小问题
发信站: BBS 未名空间站 (Tue Aug 16 21:34:27 2005)
关于Origin 图形打印输出到EPS文件，以前用的是Windows 98，随便装一个PS打印机，打
印到文件就能得到合适的EPS文件。
但是系统改用Windows 2000 或 XP 后，打印输出的EPS文件总是超出了边界，图形不在页
面的中间，有一部分看不到。
打印机的postscript选项为：内嵌的Postscript (EPS)。
请各位大侠分析一下问题出在哪儿。 |
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