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全部话题 - 话题: neutrons
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N********n
发帖数: 8363
1
来自主题: Stock版 - TBonds put JPM under stress
(ZZ)
JPMorgan is by far the largest derivative player in the world and they are
the largest player in interest rate derivatives. Most of these are in the
field of interest rate swaps.
In simple terms, our hero JPMorgan, on orders from the Fed buys a trillions
of dollars of long bonds in the future and at the same time sells or shorts
trillions of dollars of short term money of say 30 days or 90 days also in
the future. The long bond was purchased at say a yield of3.4% to 4% and the
short term mo... 阅读全帖
S*********g
发帖数: 24893
2
# Name Symbol Market Cap Price Circulating Supply Volume (
24h) % 1h % 24h % 7d
1
Bitcoin BTC $290,617,804,480 $17,358.40 16,742,200 $15,
825,500,000 -0.36% 5.62% 3.15%
2
Ethereum ETH $63,827,563,522 $662.47 96,348,146 $3,723,
910,000 -0.48% -10.50% 52.62%
3
Bitcoin Cash BCH $29,779,262,625 $1,766.66 16,856,250 $2
,532,880,000 -1.05% -5.14% 21.33%
4
Ripple ... 阅读全帖
r******u
发帖数: 47
3
流程基本上大同小异。
昨天过的边境铁丝桥,晚上用skype联系Salvador先生,无人接听,留言,稍后,
Salvador先生打来电话,约定次日早晨八点。
八点在lobby见到Mr.Salvador,很和善的一位老先生,八点五十五去banamex,交费,
目前的价格是$142。然后去consulate,在oxxo drop off,同时约好结束后在oxxo
pick up。
签证官问了许多问题,似乎想check我的样子,问了我前两次都没有check,加上我跟她
解释签证是为了一个很重要的trip,她犹豫着也就让我过了。当时紧张死了,真怕万一
被check就滞留墨西哥了。建议,非敏感专业在表述的时候千万注意措辞,俺千不该万
不该提到一句electron,结果签证官MM以为我是搞neutron的,吓得我连忙解释。
下午3:30去取签证,Mr.Salvador要返回美国,所以打算跟他的车去,然后自己走回即
可。希望可以顺利拿到。
PS Mr.Salvador的重要提示
Mr.Salvador说墨西哥政府正在考虑加强边境检查,可能本月或下月开始,建议来墨西
哥签证的,先和最近的墨西哥领事馆联
a****n
发帖数: 3082
4
来自主题: Immigration版 - 问个审稿的问题
硬着头皮开始准备EB1了,希望几个月下来背景会加强,有两个问题问大家
我给NIST neutron scattering 中心审 申请beam line 的proposal,总共 4次,每次6
个.算多少次啊?4次还是24次?只有4封他们负责人的email,但是每个 proposal 也很
长啊(10页左右)。能不能claim 24次啊?
我的两篇文章被我们 DOE lab报道,然后被很多其他科技网站有的转载,有的报道,能
不能claim media report?如果不能,能claim contribution 来弥补citation的不足吗?
谢谢
d**y
发帖数: 32
5
来自主题: Immigration版 - 审稿 (computer science)
有一篇稿件,题为“Using an Ensemble Approach for Learning a Natural Language
Interface for the ATNF Pulsar Database”
请有兴趣且方向相符的朋友站内联系,请附上个人简介,研究方向及email联系方式.
Abstract.
Until now, there has been no available natural language interfaces (NLI’s)
for querying a database of pulsars (rotating neutron stars emitting
radiation at regular intervals).
Currently, pulsar records are retrieved through an HTML form accessible via
the Australia Telescope National Facility (ATNF) website where one needs to
be familiar w... 阅读全帖
j******e
发帖数: 696
6
来自主题: Immigration版 - review opportunity
Neutron Activation Analysis of Trace Metals
Not a SCI magazine.
PM your name, research area, email address.
z******i
发帖数: 38
7
正在攒review,注册了好些journal 账户,也给一些editor 发信了,但是都石沉大海
。我主要方向是polymer nanocomposites,
surface modification using APRP, surface morphology study using x-ray and
neutron reflectivity.
我自己也在继续努力联系editor,注册账户,另外希望能版上有Id收到相关的review文
章愿意refer的可以站内,具体的情况可以用正式邮箱联系附上CV。
d********5
发帖数: 13
8
各位朋友大家好, 求推荐审稿机会,方向是radiation physics/ nulcear physics.
关键词 Imaging, CT/CBCT, Image Registration, proton/photon radiation
therapy, nucleon form factors, proton/neutron target, simulation.
物理博士毕业两年, 发过相关方向的文章二十来篇,审稿一直都认真负责。 可提供CV
, 请站内联系或邮件[email protected]
/* */。 非常感谢!!!
E*******1
发帖数: 3464
9
背景是,美国fresh PHD in physics/materials, 做固体材料里phonon dynamics,
electron-phonon interaction,和其导致的thermal transport和phase
transformation性质。实验和计算各一半, 估计属于小community。实验主要是高温高
压Raman, infrared, neutron scattering等, 自己搭建的变温raman spectrometer,
所以对光学实验非常熟;计算主要是first principles molecular dynamics
simulation算法研究。 文章,有3,4篇一作通讯作者PRB, 1篇一作PRL,只审过几次PR
的文章和一次solid state comm.,无其他,虽然通过骚扰编辑有几个杂志被editor加
在通讯名录里暂没接到任何活。不知道为啥凝聚态这么多杂志这么多manuscript,也没
人找我做个审稿的,唉。。。
在此真诚跪求审稿机会,站内联系。本人有伪币400,是不是就是传说中的包子? 如果
是,我意慷慨解囊,20个包... 阅读全帖
t******w
发帖数: 225
10
来自主题: Immigration版 - 推荐审稿[GONE]
Optics Express, published by OSA
关键词:image sensor (CMOS, CCD), dark current & its distribution,
sensitivity, shot noise, neutron irradiation.
需要者发背景(是否PhD,Title,专业,学校/公司,审稿经历,email,research关键词
),站内联系。请严格按照这个顺序提供相关信息,因为给编辑的推荐信里面会用到。
research关键词相差太多的将不予推荐。
p***y
发帖数: 18037
11
I am not a science person, but what you said does not make sense. Are you
saying people in Hiroshima and Nagasaki did not die from the nuclear
contamination, but simply from the power of the atomic explosion? There are
evidences that many Japanese left to suffer from the radiations with
deformed bodies/mental states.
Read this from "Answers.com" - "An atomic bomb explosion produces, in
addition to the shock wave accompanying any explosion, intense neutron and
gamma radiation, both of which are
p*********f
发帖数: 633
12
This is neither physics board or military board, so I don't really see the
point of such a discussion here, but since you insist...
into
Citations? Any textbook of a college physics class. Are you trying to
crack
a joke here? If yes, I don't see it.
As I said, I didn't read your "reference". You mentioned Uranium-235, and
explosion, so I natually assumed it's about an atomic bomb.
The products of a nuclear fission, besides the neutrons and alpha/beta/gamma
radiations, are different chemical
E******y
发帖数: 614
13
10-05-11
Dan Shechtman, Nobel laureate. Larger photo. Photo courtesy of The Ames
Laboratory, USDOE.
Contacts:
Dan Shechtman, Materials Science and Engineering, Ames Laboratory, the
Technion -Israel Institute of Technology, 011-972-4-829-4299, dans@ameslab.
gov
Pat Thiel, Chemistry and Ames Laboratory, (515) 294-8985, t***[email protected]
Alex King, Ames Laboratory Director, (515) 294-2770, a******[email protected]
Steve Karsjen, Ames Laboratory, (515) 294-5643, k*****[email protected]
Mike Krapfl, News Ser... 阅读全帖
v********d
发帖数: 3531
14
【 以下文字转载自 StartUp 讨论区 】
发信人: valleyblvd (石头大叔), 信区: StartUp
标 题: 让优秀的人才和你做朋友(4/4南加创业之夜)
发信站: BBS 未名空间站 (Thu Apr 3 21:56:56 2014, 美东)
开始热闹了40多天了。我们搞的打车软件,一切都还挺顺的。最好的就是。
洛杉矶的司机都知道我们了。知道我们的哦乘客还不多,只有一千多。但是,知道我们
的司机有200多。 作为我们的第一批的 early adopter的pool差不多够了。我们的老客
人的回头率非常高? 对我们的司机非常满意。当然,在最开始的时候,我们对司机的
培训做的很好也是有关系的。
app的wire frame 改了又该。 和技术员的讨论也是越来越深入了。 服务器后台用什么
? 如何防止恶意代码? 怎么让用户对我们产生感情? (跑偏了)
4/4 洛杉矶的创业大会,我也要上台去。 呵呵,只有1分钟,希望好好的推广一下自己。
2014.4.4
LA创业之夜
百名华人创业者
齐聚LA Downtown!
明天又是普创体现价值的一天。
明天也将执行paperl... 阅读全帖
g***w
发帖数: 742
15
来自主题: Minnesota版 - REG’s Free Family Film Festival (Eagan)
REG’s Free Family Film Festival
Selected G or PG movies start at 10:00am every Tuesday and Wednesday during
the festival. Tickets and seating are first-come, first-served and are
limited to theatre capacity.
Eagan Stadium 16
2055 Cliff Road
Eagan ,MN 55122
651-452-8329
06/08/2010-06/09/2010 Jimmy Neutron: Boy Genius (G)
Madagascar (PG)
06/15/2010-06/16/2010 Pirates Who Don't Do Anything (G)
Madagascar 2 (PG)
06/22/2010-06/23/2010 Muppets From Space (G)
Cloudy With A Chance Of Meatballs (PG)
06/2
c******n
发帖数: 16403
16
http://latimesblogs.latimes.com/nationnow/2011/08/radioactive-i
ed.html
Very small amounts of a radioactive isotope of sulfur, believed to have trav
eled across the Pacific Ocean from the Fukushima nuclear plant in Japan, hav
e been detected in La Jolla, Calif., by UC San Diego scientists.
But there's no need to worry: The amounts are nowhere near enough to cause h
ealth problems, researchers said.
Senior author Mark Thiemens and his team keep tabs on levels of sulfur-35 as
part of their climate... 阅读全帖
v********d
发帖数: 3531
17
【 以下文字转载自 StartUp 讨论区 】
发信人: valleyblvd (石头大叔), 信区: StartUp
标 题: 让优秀的人才和你做朋友(4/4南加创业之夜)
发信站: BBS 未名空间站 (Thu Apr 3 21:56:56 2014, 美东)
开始热闹了40多天了。我们搞的打车软件,一切都还挺顺的。最好的就是。
洛杉矶的司机都知道我们了。知道我们的哦乘客还不多,只有一千多。但是,知道我们
的司机有200多。 作为我们的第一批的 early adopter的pool差不多够了。我们的老客
人的回头率非常高? 对我们的司机非常满意。当然,在最开始的时候,我们对司机的
培训做的很好也是有关系的。
app的wire frame 改了又该。 和技术员的讨论也是越来越深入了。 服务器后台用什么
? 如何防止恶意代码? 怎么让用户对我们产生感情? (跑偏了)
4/4 洛杉矶的创业大会,我也要上台去。 呵呵,只有1分钟,希望好好的推广一下自己。
2014.4.4
LA创业之夜
百名华人创业者
齐聚LA Downtown!
明天又是普创体现价值的一天。
明天也将执行paperl... 阅读全帖
v********d
发帖数: 3531
18
【 以下文字转载自 StartUp 讨论区 】
发信人: valleyblvd (石头大叔), 信区: StartUp
标 题: 让优秀的人才和你做朋友(4/4南加创业之夜)
发信站: BBS 未名空间站 (Thu Apr 3 21:56:56 2014, 美东)
开始热闹了40多天了。我们搞的打车软件,一切都还挺顺的。最好的就是。
洛杉矶的司机都知道我们了。知道我们的哦乘客还不多,只有一千多。但是,知道我们
的司机有200多。 作为我们的第一批的 early adopter的pool差不多够了。我们的老客
人的回头率非常高? 对我们的司机非常满意。当然,在最开始的时候,我们对司机的
培训做的很好也是有关系的。
app的wire frame 改了又该。 和技术员的讨论也是越来越深入了。 服务器后台用什么
? 如何防止恶意代码? 怎么让用户对我们产生感情? (跑偏了)
4/4 洛杉矶的创业大会,我也要上台去。 呵呵,只有1分钟,希望好好的推广一下自己。
2014.4.4
LA创业之夜
百名华人创业者
齐聚LA Downtown!
明天又是普创体现价值的一天。
明天也将执行paperl... 阅读全帖
l**t
发帖数: 6971
19
来自主题: SanFrancisco版 - 福岛又发生裂变了。。。
http://www.bloomberg.com/news/2011-11-01/tepco-says-nuclear-fis
Possible Nuclear Fission Detected at Fukushima Plant
Tokyo Electric Power Co. detected signs of nuclear fission at its crippled
Fukushima atomic power plant in northern Japan, raising the risk of more
radiation leaks. The situation is under control, officials said.
The company, known as Tepco, began spraying boric acid on the No. 2 reactor
at 2:48 a.m. Japan time to prevent accidental chain reactions. Tepco said it
may have found xe... 阅读全帖
l**t
发帖数: 6971
20
来自主题: SanFrancisco版 - 福岛又发生裂变了。。。
http://www.bloomberg.com/news/2011-11-01/tepco-says-nuclear-fis
Possible Nuclear Fission Detected at Fukushima Plant
Tokyo Electric Power Co. detected signs of nuclear fission at its crippled
Fukushima atomic power plant in northern Japan, raising the risk of more
radiation leaks. The situation is under control, officials said.
The company, known as Tepco, began spraying boric acid on the No. 2 reactor
at 2:48 a.m. Japan time to prevent accidental chain reactions. Tepco said it
may have found xe... 阅读全帖
n*******y
发帖数: 259
21
来自主题: SanFrancisco版 - cisco cloud services is hiring
http://jobs.cisco.com
type in the Req number to search for details. send resume to me.
Req Number Job Posting Title
R975890 Engineering Manager
R978067 Technical Lead / Platform Solutions – OpenStack, Storage
R978070 Network Technical Leader / Design Engineer - OpenStack,
Neutron, Fabric
R980564 Technical Leader Engineering (ICF)
R972905 OpenStack DevOps Engineer
R979115 DevOps Automantion Engineer
R977091 Security Product Manager... 阅读全帖
n*******y
发帖数: 259
22
来自主题: Seattle版 - cisco cloud services is hiring (转载)
【 以下文字转载自 SanFrancisco 讨论区 】
发信人: notreally (notreally), 信区: SanFrancisco
标 题: cisco cloud services is hiring
发信站: BBS 未名空间站 (Wed Feb 4 22:47:37 2015, 美东)
http://jobs.cisco.com
type in the Req number to search for details. send resume to me.
Req Number Job Posting Title
R975890 Engineering Manager
R978067 Technical Lead / Platform Solutions – OpenStack, Storage
R978070 Network Technical Leader / Design Engineer - OpenStack,
Neutron, Fabric
R980564 Technic... 阅读全帖
f*******0
发帖数: 62
23
来自主题: Tennessee版 - 53k Postdoc offer at ORNL
Got an offer from ORNL, neutron scattering, 53k per year. It seems a little
bit low. Any idea?
b******n
发帖数: 1269
24
来自主题: Cycling版 - 2nd Wheelset
Campy makes the best wheels. Period.
Get some neutrons for mid-budget all round wheels that will simply make you
forget about wheels altogether.
a****d
发帖数: 282
25
来自主题: Fishing版 - Orlando渔趣(一)
自从小犬四年半前出生以来,我就鲜有钓鱼之乐,不曾想这次Orlando之行让我的心又
开始蠢蠢,以至于回来第二天就举家跑到Bass Pro Shop去看他们的大鱼缸,手痒得恨
不得在那儿甩几竿儿。
去Orlando当然主要是为了小犬。前两天我们都泡在Universal Studio里面看Jimmy
Neutron,Shrek,还有猪罗公园,第三天去Magic Kingdom,小家伙开始审美疲劳,而
且他本来天天看Nick Jr,对Spongebob比对米老鼠唐老鸭之类要熟得多,结果下午不到
饭点就想回“家”。第四天在Space Center玩得还不错,回旅馆之后就商量明天上哪儿
。原来的打算是去Epcot,但小家伙似乎对去另一个Disney的园子不是很有Feel,于是
领导就把制定计划的任务交给了我。
话说这时已是夜里九点多,我在那百无聊赖地翻地图还有出发之前在网上买的娱乐书(
Entertaiment Book)。顺便推荐一下这个娱乐书,里面有无数半价折扣券,每本二十
多块,一顿饭就吃回来了,绝对是“居家旅行,杀人越货”之必备。言归正传,这娱乐
书里头除了吃饭的deal,还有Attra
a****d
发帖数: 282
26
来自主题: Fishing版 - Orlando渔趣(一)
自从小犬四年半前出生以来,我就鲜有钓鱼之乐,不曾想这次Orlando之行让我的心又
开始蠢蠢,以至于回来第二天就举家跑到Bass Pro Shop去看他们的大鱼缸,手痒得恨
不得在那儿甩几竿儿。
去Orlando当然主要是为了小犬。前两天我们都泡在Universal Studio里面看Jimmy
Neutron,Shrek,还有猪罗公园,第三天去Magic Kingdom,小家伙开始审美疲劳,而
且他本来天天看Nick Jr,对Spongebob比对米老鼠唐老鸭之类要熟得多,结果下午不到
饭点就想回“家”。第四天在Space Center玩得还不错,回旅馆之后就商量明天上哪儿
。原来的打算是去Epcot,但小家伙似乎对去另一个Disney的园子不是很有Feel,于是
领导就把制定计划的任务交给了我。
话说这时已是夜里九点多,我在那百无聊赖地翻地图还有出发之前在网上买的娱乐书(
Entertaiment Book)。顺便推荐一下这个娱乐书,里面有无数半价折扣券,每本二十
多块,一顿饭就吃回来了,绝对是“居家旅行,杀人越货”之必备。言归正传,这娱乐
书里头除了吃饭的deal,还有Attra... 阅读全帖
k**********s
发帖数: 6409
27
来自主题: Fishing版 - Kmart的便宜Lure好使
Kmart卖的是这个Blaze RAX-20:
http://www.south-bend.com/products/products-brand/blaze-lures/72-pc-hardbait-assortment
在那里注意到,这个South-Bend把多少牌子都买下了,怪不得东西越做越烂:
Black Beauty
Blaze Lures
Competitor
Compulsion
Eclipse
Microlite
Mudville Catmaster
Neutron
Proton
Raven
Ready2Fish
Recluse
Take Me Fishing
Trophy Stalker
UltraFight Tackle
Worm Gear
Zoo Kids

发帖数: 1
28
AlphaGo相关技术:蒙特卡罗(Monte Carlo)方法简介
2016-03-13 王晓勇 算法与数据结构
来自:科学网王晓勇博客
链接:http://blog.sciencenet.cn/blog-324394-292355.html(点击尾部阅读原文前往)
AlphaGo能够成功击败专业棋手的功臣之一:蒙特卡罗树搜索(Monte Carlo Tree
Search)。
相关文章阅读:《AlphaGo背后的搜索算法:蒙特卡罗树搜索》
蒙特卡罗(Monte Carlo)方法,也称为计算机随机模拟方法,是一种基于"随机数"的计
算方法。
一、起源
这一方法源于美国在第二次世界大战进研制原子弹的"曼哈顿计划"。Monte Carlo方法
创始人主要是这四位:Stanislaw Marcin Ulam, Enrico Fermi, John von Neumann(
学计算机的肯定都认识这个牛人吧)和 Nicholas Metropolis。
Stanislaw Marcin Ulam是波兰裔美籍数学家,早年是研究拓扑的,后因参与曼哈顿工
程,兴趣遂转向应用数学,他首先提出用Monte... 阅读全帖

发帖数: 1
29
AlphaGo相关技术:蒙特卡罗(Monte Carlo)方法简介
2016-03-13 王晓勇 算法与数据结构
来自:科学网王晓勇博客
链接:http://blog.sciencenet.cn/blog-324394-292355.html(点击尾部阅读原文前往)
AlphaGo能够成功击败专业棋手的功臣之一:蒙特卡罗树搜索(Monte Carlo Tree
Search)。
相关文章阅读:《AlphaGo背后的搜索算法:蒙特卡罗树搜索》
蒙特卡罗(Monte Carlo)方法,也称为计算机随机模拟方法,是一种基于"随机数"的计
算方法。
一、起源
这一方法源于美国在第二次世界大战进研制原子弹的"曼哈顿计划"。Monte Carlo方法
创始人主要是这四位:Stanislaw Marcin Ulam, Enrico Fermi, John von Neumann(
学计算机的肯定都认识这个牛人吧)和 Nicholas Metropolis。
Stanislaw Marcin Ulam是波兰裔美籍数学家,早年是研究拓扑的,后因参与曼哈顿工
程,兴趣遂转向应用数学,他首先提出用Monte... 阅读全帖
s********g
发帖数: 264
30
刚去玩了7天,给想去玩得同学一点参考。
总共买了7天票,去了Disney的5个园(Epcot, Magic kingdom, Animal kingdom,
Hollywood studio, Blizzard beach water park)和Universal studio的2个园。每个
园都有自己的特色,没有一个让人失望的。我们玩了几天的感受就是:那边是个老少咸
宜的地儿,我们这种无孩儿、小胆儿、大龄也是可以玩得很high的。
简单介绍一下各个园的项目,给想去的做个参考。因为即便像我们一天一园的玩,项目
也是玩不完的,所以还是要事先有个选择才好。另外就是Fastpass很重要,可以极大的
提高效率。
------------- 第一天:Epcot -------------
Epcot是个小园,我们想着热身就先去了这个。实践证明热身还挺有用的,我们充分掌
握了领取Fastpass和游戏安排的精华,后边几天玩得效率都很高。介绍一些项目:
Test Track (fastpass项目,以下简称FP):模拟车的测试过程,比如颠簸、碰撞(其实
没真碰)、突然刹车、高速行驶等。比较enj... 阅读全帖
b*s
发帖数: 82482
31
来自主题: LeisureTime版 - 读维特根斯坦(弗雷格)
早说了啊,中文写这样的东西不靠谱,太fuzzy了。感觉说的是the blueprint or the
information used to build the final product……
neutrons and protons还能组成万物呢,凭什么石墨和金刚石是一种物质啊

基本了解逻辑是什么,但是完全不领会“结构”在文中的意思。
r****e
发帖数: 3373
32
来,我给你贴一个。老头讲究起来真讲究,啰嗦起来真啰嗦,逗的时候真逗,恶的时候
真恶。
Playboy Interview: Vladimir Nabokov
By ALVIN TOFFLER • PLAYBOY • JANUARY 1964
Playboy: With the American publication of Lolita in 1958, your fame and
fortune mushroomed almost overnight from high repute among the literary
cognoscenti—which you had enjoyed for more than 30 years—to both acclaim
and abuse as the world-renowned author of a sensational best seller. In the
aftermath of this cause célèbre, do you ever regret having written Lolita?... 阅读全帖
p*******y
发帖数: 133
33
This book summarized the history of development in modern physics.
Newton's gravity explained attraction between objects, and therefore why
apples fall down to the ground and why the earth orbits the sun.
Einstein's special theory of relativity explained that time and length are
not as absolute as everyday experience would suggest: Speed of light is
constant, moving clocks run slower leading to the twin paradox, and moving
objects are shorter. Another consequence of special relativity is the mos... 阅读全帖
l****e
发帖数: 137
34
来自主题: PhotoGear版 - 蓝老帮看看这个图吧。。。
This data is old. Current limit in shielding design is 0.25 mrem/hr or 2.5
uSv/hr, ~10 times lower.
Also 辐射服 can only stop alpha, beta and may be very low energy gamma decay
. its purpose is mainly to stop
radiation contamination. It is useless at a reactor site when the main
contributions are from neutrons and
gammas. Intake of 300 rem or 3 Sv could cause the body to fail within a
week or two. At Chernobyle ~60 of
2000 died due to such a dosage, though i have not confirmed on this data.
l****e
发帖数: 137
35
来自主题: PhotoGear版 - 蓝老帮看看这个图吧。。。
i am not sure in a medical facility, u use fast neutrons. i am also
surprised u use such high energy x-ray? What
is the purpose for this. Anyway in that case, u can use steel + concrete,
just high density concrete.

15MeV
y*b
发帖数: 3190
36
来自主题: PhotoGear版 - Amazon Prime Day Electronics July 15
http://slickdeals.net/f/7978651-amazon-prime-day-electronics-sn
This is just a heads up of select electronics that will go on sale on July
15. No prices yet, but all times are PST.
Home Entertainment
Samsung UN50HU8550 50" 4K 3D 120Hz LED Smart HDTV Starts 7:20am
LG 55UB8200 55" 4K LED Smart HDTV Starts 10:50am
LG 49UB8200 49" 4K LED Smart HDTV Starts 2:50pm
LG 32LF595B 32" 720p LED Smart HDTV Starts 9:10am
Vizio M49-C1 49" 4K 120Hz LED Smart HDTV Starts 8:50am
Vizio 38" Soundbar w/ Sub + Rear S... 阅读全帖
A****s
发帖数: 348
37
来自主题: WaterWorld版 - Remember to watch NASA TV today
I think it's a 2 solar mass neutron star
y*******w
发帖数: 5917
38
来自主题: WaterWorld版 - 日本机器人关键时刻掉链子
你仔细去研究一下gamma ray再回来说事,连gamma ray和neutron 的区别都搞不清,
你混什么.你要是能搞出速度变小的gamma ray,诺贝尔奖就是你的.

啊。
g********d
发帖数: 19244
39
nuclear excursion != nuclear explosion
It only releases a surge of neutrons and increases the core power

呵呵, 是的你说的没错,但是你说的只是第一次爆炸。 第一次爆炸是蒸汽爆炸, 可
是几秒以后又有一次爆炸。
from wiki,http://en.wikipedia.org/wiki/Chernobyl_disaster,
A second, more powerful explosion occurred about two or three seconds after
the first; evidence indicates that the second explosion resulted from a
nuclear excursion.[33] The nuclear excursion dispersed the core and
effectively terminated the nuclear chain reaction.
d*****l
发帖数: 8441
40
来自主题: WaterWorld版 - 《方舟子抄袭剽窃年谱》
《方舟子抄袭剽窃年谱》
发布: 亦明
日期: March 03, 2011
目录

正谱
附录
【附录01:《方舟子在1988年“模仿”梁小斌》(作者:亦明)】
【附录02:《方舟子在1988年“模仿”顾城》(作者:亦明)】
【附录03:《方舟子在1993年抄袭吴晗〈朱元璋传〉之一》(作者:亦明)】
【附录04:《方舟子在1993年抄袭吴晗〈朱元璋传〉之二》(作者:亦明)】
【附录05:《方舟子在1993年抄袭吴晗〈朱元璋传〉之三》(作者:亦明)】
【附录06:《方舟子在1993年抄袭李贽〈续藏书〉》(作者:亦明)】
【附录07:《方舟子在1993年抄袭吴晗〈朱元璋传〉之四》(作者:亦明)】
【附录08:《方舟子在1995年抄袭母校MSU教授》(作者:亦明)】
【附录09:《方舟子在1999年抄袭孔繁〈荀子评传〉》(作者:亦明)】
【附录10:《方舟子在2000年抄袭哈佛大学教授迈尔》(作者:亦明)】
【附录11:《方舟子在2001年抄袭〈自然〉杂志》(作者:亦明)】
【附录12:《方舟子在2001年抄袭〈纽约时报〉》(作者:亦明)】
【附录13:《方舟子在2001年抄袭〈科学〉杂志... 阅读全帖
z**c
发帖数: 7595
41
来自主题: WaterWorld版 - (ZT)赶快给老方签个名。
看看当年:
(以下是新语丝公开资料。 如有冒犯,敬请原谅)
巴义芳,建筑师,加拿大,多伦多
曹涵,博士, 美国Bionanomatrix公司CTO
曹化哲,金融硕士及MBA,普天寿公司杰出地产经纪
曹焕,工程师,泉州市鲤城黄石机械有限公司外贸经理
Cao Linqiu,博士,Research Scientist,荷兰DMV International
曹乾,博士,副教授,东南大学医疗保险系
曹兴龙,法律硕士,民商法学博士生,律师,浙江西子律师事务所
曹耀月,国电南京自动化股份有限公司
曹子谊,教授,山东师范大学生命科学学院
蔡卫,计算机工程与工程技术硕士,美国北德克萨斯大学工程学院
Chan Jane, 博士, Sr. Analyst, US West Financial
Chen Biao, 生物医学工程博士, Principal Scientist, Hologic, Inc.
陈昌和,硕士,福建省交通厅
陈大兵,博士研究生,美国明尼苏达大学
Chen Dong, 博士,Senior Staff Scientist, Veeco Instruments
Chen Guangjion... 阅读全帖
f**********r
发帖数: 18251
42
来自主题: WaterWorld版 - Re: 普鲁士蓝解毒机理 (转载)
【 以下文字转载自 Military 讨论区 】
发信人: smartkevin (PE), 信区: Military
标 题: Re: 普鲁士蓝解毒机理
发信站: BBS 未名空间站 (Wed May 1 11:49:11 2013, 美东)
为什么一帮人就喜欢动嘴皮子不喜欢动手狗一下?明明说了是Fe4[Fe(CN)6]3,哪来的
钾?
https://en.wikipedia.org/wiki/Prussian_blue
Prussian blue
From Wikipedia, the free encyclopedia
This article is about the pigment. For the musical duo, see Prussian Blue.
See also: Midnight blue
Prussian blue
IUPAC name[hide]
Iron(II,III) hexacyanoferrate(II,III)
Other names[hide]
Berlin blue
Ferric ferrocyanide
Ferric hexacy... 阅读全帖
k****e
发帖数: 4262
43
来自主题: Joke版 - 两个原子走在街上 (转载)
what would happen if a neutron lost a positron ?
c*******7
发帖数: 17225
44
September 23, 2011 10:32 AM PrintText
Faster than light measurement shocks physicists
5 Comments
Have Your Say Email Story
Send to a FriendShare ThisTell Your FriendsTweet ThisTweet ThisMoreShare It.
Del.icio.usFacebookStumbleuponNewsvineYahoo bookmarksMixxDiggRedditGoogle
BookmarksTwitterLinkedInPlay CBS News Video
(AP) GENEVA - Physicists on the team that measured particles traveling
faster than light said Friday they were as surprised as their skeptics about
the results, which appear to viol... 阅读全帖
a******o
发帖数: 16625
45
【 以下文字转载自 Military 讨论区 】
发信人: LindaLiao (梅影清吟), 信区: Military
标 题: 世界历史上最有成就的五十名物理学家。
发信站: BBS 未名空间站 (Sun Apr 8 17:18:35 2012, 美东)
1. Isaac Newton - English. Quantified and Qualified laws of motion and
gravity. Invented the reflecting telescope. Explained the concept of light
dispersion and co-invented the Calculus.
2. Albert Einstein - German/Swiss/American - Developed Theories of Special
and General Relativity. Described Brownian Motion. Nobel Prize winner for
his work on the photoelectric ef... 阅读全帖
n********1
发帖数: 197
46
来自主题: Joke版 - 废铁废铝转化成柴油 (转载)
I do not know why this can not be done if enough money is spent. Under high
energy proton and neutron, all atoms can be break down the recombine. Very
high efficiency to burn money.
z***i
发帖数: 8285
47
来自主题: Joke版 - 废铁废铝转化成柴油 (转载)
英话念不通

I do not know why this can not be done if enough money is spent. Under high
energy proton and neutron, all atoms can be break down the recombine. Very
high efficiency to burn money.
h*****n
发帖数: 1630
48
lol,一个实验是真是假是你们投票决定的么?
这个实验1987年就有人做了,因为监视粒子通过哪个狭缝的探测器不可能有100%的效率
,所以实验表现出部分波性和部分粒子性的结合,最后屏幕上会出现退化了的干涉条纹
。对实验结果的解释和主流的量子力学没有矛盾。
wiki上找来的参考文献:
36. P. Mittelstaedt; A. Prieur; R. Schieder (1987). "Unsharp particle-wave
duality in a photon split-beam experiment". Foundations of Physics 17 (9):
891–903. Bibcode:1987FoPh...17..891M. doi:10.1007/BF00734319.
37. D.M. Greenberger and A. Yasin, "Simultaneous wave and particle knowledge
in a neutron interferometer", Physics Letters A 128, 391–4 (1988).
38... 阅读全帖
H********g
发帖数: 43926
49
10e-18 埃托秒
1 attosecond: the time it takes for light to travel the length of three
hydrogen atoms
12 attoseconds: record for shortest time interval measured as of 12 May 2010
[5]
24 attoseconds: the atomic unit of time
67 attoseconds: the shortest pulses of laser light yet created[6]原来现在有
这么短的脉冲啊
100 attoseconds: fastest ever view of molecular motion[7]
200 attoseconds (approximately): half-life of beryllium-8, maximum time
available for the triple-alpha process for the synthesis of carbon and
h... 阅读全帖
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