d********i
发帖数: 582 | 1 以下内容可以说明为什么volvo被toyota侧撞，toyota前端全毁，而volvo只是轻伤。
As an introduction,
please have a look at the following 2 videos that highlight the SIPS seat
rails/tubules and crash box that I believe are present in the xc90 and some
other recent volvo models.
http://www.youtube.com/watch?v=KlEZSa9NOmQ
http://www.youtube.com/watch?v=wA09vM7Zufs
It seems that volvo designed the XC60 without these horizontal rails in the
seats and with no such internal crash box. The video shows what I am talking
about. You can ... 阅读全帖 |
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n*******n
发帖数: 12 | 2 最近做了一个boronic ester：3-methylester-2-nitro-phenyl pinacol boronic
ester. 可能是因为苯环上有两个强吸电子基团 （这个理论是我猜的），分子在柱子上
拖尾很严重。同时，这个化合物得UV特别弱（也可能是拖尾让我看不到分子到底在什么
地方）。
我今天早上尝试用acetonitrile重结晶，pinacol boronic ester 和我的分子一起结晶
出来。尝试了下一步反应，直接用crude没有反应，提纯以后的化合物（过一次柱子可
以拿到一些纯的）反应38%的产率，现在要optimize rxn，但是不能拿到足够的纯化合
物，很难办啊。
请问各位高人，有什么好办法提纯boronic ester吗？ |
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f********h
发帖数: 247 | 3 小弟在做一个反应，第一次用boron trifluoride做催化剂，文献上是用diethyl ether
溶解
boron trifluoride，然后加到epichlorohydrin里面。我直接用的boron trifluoride
diethyl
etherate。加到epichlorohydrin里后，出现白雾，而且有棕色的液滴出现。
epichlorohydrin是
无水的，用FTIR验证过了。请问这是正常现象么？另外，如果把boron trifluoride
diethyl
etherate加到我需要用的另外一个液体原料中，只出现淡淡的雾，并无棕色出现。望指
点，谢谢
先。 |
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f**s
发帖数: 2225 | 5 nickle boron就是failzero那个公司做的，所谓的dry lube，不需要擦油都能打，很nb
225 |
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c********e
发帖数: 376 | 6 据说spike's的nickle boron是WMD guns做的。而WMD guns是几个从failzero出来的人
开的，价格比failzero稍低。
225 |
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N*********6
发帖数: 4372 | 7 那个是Boom Heron吧，Boron是full back帮他block的 |
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R******a
发帖数: 1195 | 8 Is the basicity strong enough to hydrolyzed the boronate, thanks! |
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l****z
发帖数: 29846 | 9 【 以下文字转载自 GunsAndGears 讨论区 】
发信人: happyfrog (happyfrog), 信区: GunsAndGears
标 题: 我与刀枪----那个男银不爱枪
发信站: BBS 未名空间站 (Sun Oct 13 12:25:16 2013, 美东)
我的经历估计跟大多数版上的兄弟差不多，对枪的迷恋从男孩时代就开始了。
那个男银不爱枪。 小学三年级时，同班同学拿了一把逼真的古铜色的左轮玩具枪，那
真叫大伙眼馋死了。我家里条件不好，自己一向很节省，高中前平时没有划过零用钱的
。可那次，第一次动了心。我偷偷的把春节一位 亲戚给的压岁钱留了10元，去地摊买
了那把一样的枪。可真正拿到手以后，心里感到不都是快乐，更多的是自责。当然家里
马上就发现了，后来找去那小贩想退未果，肉痛啊，那时候可是八十年代，10元钱钢钢
的。小孩子不懂事啊。
来美国以后，比较轻松的博士生前两年，让我有机会第一次enojy my life. 喜欢上了
玩counter strike。
经常做完实验回来，会沉浸于其中一两个小时。先是和自己几个哥们相互厮杀，后来到
网上试试。虽然自己技术很次... 阅读全帖 |
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S*********g
发帖数: 24893 | 10 【 以下文字转载自 Stock 讨论区 】
发信人: StephenKing (金博士), 信区: Stock
标 题: 向民族英雄包鹏程致敬！为民族英雄包鹏程欢呼！
发信站: BBS 未名空间站 (Wed Jun 3 20:54:21 2015, 美东)
Pengcheng Bao, Graduate Student
Pengcheng is a second year graduate student. He obtained his B.S. in physics
from Nankai Univeristy in China.
Project: Development of methodology for realistic modeling of heterogeneous
catalytic interfaces.
Tel: 310-206-3215
Email: [email protected]
/* */
PENGCHENG BAO
Education
and Awards
2009 –
NANKAI UNIVERSITY TIANJIN, CHINA... 阅读全帖 |
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c*******r
发帖数: 1243 | 11 开过volvo六年的，你对这车的了解不能仅仅停留在纸面的报告上。
我开过8年XC90 T6。当初也是本着对volvo安全性的极大期待买的，结论是物有所值。
volvo的安全性是体现在整体设计和所有细节上的。比如，XC90的骨架中大量使用Boron
金属，Boron比high strength钢还硬。许多高档车都使用Boron，但是XC90是用得最多
的。使用Boron也带来个副作用，就是车重增加很多，所以XC90不省油。说到细节，举
几个小例子。如果你开过Volvo，你注意前排的座椅，坐垫不是平的，而是前端翘起，
这个是为在碰撞发生时，防止前排乘员向前冲而设计的。还有，发动机布局也是有讲究
的，在发生大的碰撞时，发动机锚钉会自动脱落，发动机就会向下落，不会向车内运动
。还有，volvo的技术人员花了很大的努力来提高车子规避碰撞时的性能。10年前，SUV
的侧翻是个技术瓶颈，volvo XC90在03年推出时的第一大卖点就是这车解决了这个侧翻
的问题。volvo规避威胁的能力我在公路上和测试场里都领教过了，性能超过很多高档
小轿车。
以上只是我体会的volvo安全性的几个例子，如果需要其... 阅读全帖 |
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R*********e
发帖数: 73 | 13 得到博士offer的本科生简历(挂网公开的,应该可以讨论把)在下面,先只请教下打动
发考题们给了博士offer的原因,别的不八卦:)哈哈
照说本科生得让发考题们认为极其有科研的潜质,才能打败无数硕士生,发考题们才
会直接给本科生offer直攻博士;
看这份简历,我的感觉是
1.本科成绩好,会读书
2.参加了很多国内老师的项目,参加了一些海外老师的暑期短期项目,有些学术锻炼和想
法,但无明显成果,可能人缘好,会来事;但不排除夸大自己作用的可能
3.得了一些奖学金,国内高校基本上成绩好加积极参加学校各项活动,对老师会来事,自
然就能得.
3.英语写的好
4.积极参加各种活动,精力充沛,勤奋,把自己的时间,安排的满满当当的,有废寝忘食的
倾向.
5.非常有计划性和目的性,经过几年奋斗,作为本科学生,已经达到面面聚到的无短板程
度.
作为本科生,这份简历无疑是优秀的;但是却无法直接得出极其有科研的潜质的结论;相
反无数硕士生申请攻博士,由于年龄大一些和工作经历,也许本科成绩绩点低一些,得的
奖学金项目少一些,但是有实践经验,多数还会有1-2篇海外(尽管可能级别和影响不高)
期刊发表的... 阅读全帖 |
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S*********g
发帖数: 24893 | 14 Pengcheng Bao, Graduate Student
Pengcheng is a second year graduate student. He obtained his B.S. in physics
from Nankai Univeristy in China.
Project: Development of methodology for realistic modeling of heterogeneous
catalytic interfaces.
Tel: 310-206-3215
Email: [email protected]
/* */
PENGCHENG BAO
Education
and Awards
2009 –
NANKAI UNIVERSITY TIANJIN, CHINA
Bachelor of Science in Physics (Condensed Matter Physics), June 2013.
Academic Record:
2009-2010: Overall: 93.40 Ranking 1/141 Maj... 阅读全帖 |
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S*********g
发帖数: 24893 | 15 【 以下文字转载自 Stock 讨论区 】
发信人: StephenKing (金博士), 信区: Stock
标 题: 向民族英雄包鹏程致敬！为民族英雄包鹏程欢呼！
发信站: BBS 未名空间站 (Wed Jun 3 20:54:21 2015, 美东)
Pengcheng Bao, Graduate Student
Pengcheng is a second year graduate student. He obtained his B.S. in physics
from Nankai Univeristy in China.
Project: Development of methodology for realistic modeling of heterogeneous
catalytic interfaces.
Tel: 310-206-3215
Email: [email protected]
/* */
PENGCHENG BAO
Education
and Awards
2009 –
NANKAI UNIVERSITY TIANJIN, CHINA... 阅读全帖 |
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h*******g
发帖数: 2201 | 16 我的经历估计跟大多数版上的兄弟差不多，对枪的迷恋从男孩时代就开始了。
那个男银不爱枪。 小学三年级时，同班同学拿了一把逼真的古铜色的左轮玩具枪，那
真叫大伙眼馋死了。我家里条件不好，自己一向很节省，高中前平时没有划过零用钱的
。可那次，第一次动了心。我偷偷的把春节一位 亲戚给的压岁钱留了10元，去地摊买
了那把一样的枪。可真正拿到手以后，心里感到不都是快乐，更多的是自责。当然家里
马上就发现了，后来找去那小贩想退未果，肉痛啊，那时候可是八十年代，10元钱钢钢
的。小孩子不懂事啊。
来美国以后，比较轻松的博士生前两年，让我有机会第一次enojy my life. 喜欢上了
玩counter strike。
经常做完实验回来，会沉浸于其中一两个小时。先是和自己几个哥们相互厮杀，后来到
网上试试。虽然自己技术很次，但当野猪的感觉也很爽（我们称那种每次开局，手里拿
着一颗开了保险的手雷冲在最前面去撞大运的id)。
当时想过去打靶碰碰真家伙，但听同学说（我在Chicago),非公民在911后不能玩火器，
加上后来实验也步入正轨，自己没有去证实同学的说法是否正确，就没有真的碰过枪。
真的决定买枪是... 阅读全帖 |
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S*********g
发帖数: 24893 | 17 【 以下文字转载自 Stock 讨论区 】
发信人: StephenKing (金博士), 信区: Stock
标 题: 向民族英雄包鹏程致敬！为民族英雄包鹏程欢呼！
发信站: BBS 未名空间站 (Wed Jun 3 20:54:21 2015, 美东)
Pengcheng Bao, Graduate Student
Pengcheng is a second year graduate student. He obtained his B.S. in physics
from Nankai Univeristy in China.
Project: Development of methodology for realistic modeling of heterogeneous
catalytic interfaces.
Tel: 310-206-3215
Email: [email protected]
/* */
PENGCHENG BAO
Education
and Awards
2009 –
NANKAI UNIVERSITY TIANJIN, CHINA... 阅读全帖 |
|
O*******d
发帖数: 20343 | 18 Radiation-hardening techniques[edit]
Physical:
Hardened chips are often manufactured on insulating substrates instead of
the usual semiconductor wafers. Silicon dioxide (SOI) and sapphire (SOS) are
commonly used. While normal commercial-grade chips can withstand between 50
and 100 gray (5 and 10 krad), space-grade SOI and SOS chips can survive
doses many orders of magnitude greater. At one time many 4000 series chips
were available in radiation-hardened versions (RadHard).[3]
Bipolar integrated ... 阅读全帖 |
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s*****g
发帖数: 3527 | 19 这个原帖的作者水平不行啊，请 google 一下 Boron Steel, 1100MPa 到 1400MPa 已
经广泛用在 side door beam 和一些 joints 上了。以下这个连接有图显示 2004
Volvo XC90 用 Boron Steel 的地方：
http://www.resqmed.com/BoronSteel1.pdf
不管是日车，美车，还是德系车都有用 boron steel.
车子防侧撞，主要是 side door beam, sill, under body cross members, A-B
pillars and roof cross members, 基本上就是整个框架的强度，以保证 safety cage
内变形小，尽量减少入侵乘客空间。车门的那层薄薄的钢皮(0.75 还是0.8mm)真的没有
什么用.
声明一下：本人非日车扇子，家里两辆美车，呵呵。 |
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s*****e
发帖数: 893 | 20 build this car on Mercedes webiste.
final MSRP $78,015 (with options selected)
(vs XC90 Hybrid类似配置 同样的价格)
这个的安全性会比Volvo XC90 Hybrid差吗?
奔驰比沃沃小,却重了400磅.
沃沃的视频里boasts "no one else in the car industry put more boron steel
into cars than we do". 40% of Volvo car weight is boron steel (high-
strength, but light weight, steel) 我想 难道奔驰造车就不care safety, high-
strength safety cage? 奔驰就会少放boron steel?
GLE550e 4MATIC Plug-in Hybrid SUV
Engine 3.0L V6 Horsepower 436 (combined)
starting from $66,300 MSRP (vs... 阅读全帖 |
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l**t
发帖数: 6971 | 21 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 |
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l**t
发帖数: 6971 | 22 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 |
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K****D
发帖数: 30533 | 23 Graphite Ace不是主流型号。ProKennex是以有无数型号臭名昭著的。
Black Ace最好，Boron Ace最贵。
从硬到软：
Boron
Black
Silver
Bronze
Copper
Golden
偶有Boron, Bronze, Copper. |
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s*****e
发帖数: 893 | 25 https://www.media.volvocars.com/us/en-us/media/pressreleases/148123/all-new-
volvo-xc90-two-world-firsts-in-one-of-the-safest-cars-in-the-world
Stronger in every sense
To help keep the occupant space inside intact in a crash, the all-new XC90
has literally been made stronger in every sense. This is achieved by more
extensive use of hot-formed boron steel, which is the strongest type of
steel presently used in the car body industry.
The complete safety cage around the occupants is made from hot-f... 阅读全帖 |
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r*******r
发帖数: 60 | 26 刚拿到了soil test，牛人们帮我看看吧，接下来该干嘛呢？我准备7月开始round up.9
月开始种草。我在6区。谢谢谢谢！！！
这是侧院：
Soil pH (1:1, H2O) 5.0
Modified Morgan extractable, ppm
Macronutrients
Phosphorus (P) 3.9 4-14
Potassium (K) 36 100-160
Calcium (Ca) 697 1000-1500
Magnesium (Mg) 47 50-120
Sulfur (S) 14.8 >10
Micronutrients *
Boron 0.0 0.1-0.5
Manganese (Mn) 7.5 1.1-6.3
Zinc (Zn) 13.8 1.0-7.6
Copper (Cu) 0.2 0.3-0.6
Iron (Fe) 50.2 2.7-9.4
Aluminum (Al) 209 <75
Lead (Pb) 8.3 <22
Cation Exch. Capacity, meq/100g 16.6
Exch. Acidity, meq/100g 1... 阅读全帖 |
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f*******3
发帖数: 122 | 27 RE: Applicant’s Name
To Whom It May Concern:
This letter is written to recommend Dr. XXX as a scientist/researcher of
outstanding accomplishments and extraordinary ability in the field of
Chemistry, specifically, development of new reactions based upon Metal-
catalyzed C-H activation processes.
I am a Professor of Organic Chemistry at ___________________________. My
group is focused on development of catalytic reactions catalyzed by platinum
and gold catalyst. My group is also engaged in metal-c... 阅读全帖 |
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k*******n
发帖数: 5546 | 28 AR多,这个没机会打,Upper链接在这里:
http://www.bravocompanyusa.com/B ... 14.htm?1=1&CartID=1
简介：
新的14.5" +A2X pinned by BCM
新的WMD BCG nickel boron (headspace checked with this upper) 注意Nickel
Boron只是更容易清理，不是不需要清理。@brucewayne
归零了铁瞄然后有次跟小海军出去打过50－80发function check.
LMT的Charging Handle, 这个是LMT上挪过来的，之前打过大约300发
$560 shipped
+$60 you will get the LMT Tactical Rear Sight and two nice handguards (
skinny CAR and fat M4). 不单卖
表面没有啥磕痕，FSB几乎正中,FN CL 1:7管子，HP/MPI测试过。 M4 feed ramp对齐完
美，出厂BCM做过简单polish。BCM's true 0.062" g... 阅读全帖 |
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Y****r
发帖数: 3473 | 30 omg, I am so glad I stopped by
the best way to kill ants and many other bugs - use boronic acid, you can
buy it online in bottles, it is a tasteless and harmless powder to ADULT
human being, mix it with flour and sugar (1:1:1) and spread where you see
ants - they will be gone in 2 to 3 weeks
caution: boronic acid is harmful to children and pets so use caution if you
have them |
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x*******6
发帖数: 994 | 32 《Bulletin of the Chinese Ceramic Society》 1994-06
Li Ping Wang Ynnglan Yang Jianjeng Gao Jiqiang Jin Zhihan (Xian Jinotong
University)
Study on the Boron Oxide Carbothermal Reduction Synthesis of Boron Carbide
多谢 |
|
x*******6
发帖数: 994 | 33 《Bulletin of the Chinese Ceramic Society》 1994-06
Li Ping Wang Ynnglan Yang Jianjeng Gao Jiqiang Jin Zhihan (Xian Jinotong
University)
Study on the Boron Oxide Carbothermal Reduction Synthesis of Boron Carbide
多谢 |
|
x*******6
发帖数: 994 | 34 《Bulletin of the Chinese Ceramic Society》 1994-06
Li Ping Wang Ynnglan Yang Jianjeng Gao Jiqiang Jin Zhihan (Xian Jinotong
University)
Study on the Boron Oxide Carbothermal Reduction Synthesis of Boron Carbide
多谢 |
|
p*********e
发帖数: 32207 | 35 ☆─────────────────────────────────────☆
yeemartin (猪头) 于 (Mon Aug 17 05:10:38 2009, 美东) 提到:
看了一篇的文章
有解释为啥Shell Rotella T、Mobil Delvac这些heavy duty diesel oil的Used oil
analysis结果都很突出的原因，普通engine oil是S certification，例如SJ、SM。商
用truck engine oil是C certification， 目前是CI、CJ。C的additive package比S的
牛x很多，但有可能会不兼容乘用车上的catalytic converter。
我的G35目前就在用Shell Rotella T，摩托车下次换油也准备用这个。mobil的
synthetic motorcycle oil 1 quart 12刀，受不了。
Commercial (Diesel) Oil
The additive packages for C (commercial) certification... 阅读全帖 |
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i***s
发帖数: 39120 | 36 据香港《文汇报》等媒体综合报道，佳士得拍卖行将于2016年5月18日，在日内瓦拍卖全球最大彩钻、重14.62卡的“奥本海默蓝钻”(Oppenheimer Blue)，估价高达3200万英镑，与苏富比去年拍出的“蓝月”钻石成交价相同。
佳士得珠宝主管卡达基亚形容，“奥本海默蓝钻”是前所未见的最大及最美的艳彩蓝钻，在全球巡回展出时，令宝石收藏家为之着迷。
“奥本海默蓝钻”以英国著名钻石贸易商、钻石界巨擘“戴比尔斯”(De Beers)掌舵人菲利浦?奥本海默爵士命名。他选择收藏这颗蓝钻的原因，是它拥有“完美色泽、比例及优美的长方形状”。
奥本海默所属的家族曾实际控制戴比尔斯长达80年之久，直到2012年才以51亿美元价格，将40%的股权出售给英美资源集团公司(Anglo American plc)。
另据介绍，蓝钻的色彩是因为含有微量的硼元素(Boron)，大部分天然蓝钻都略带灰色，或是颜色不均而有无色区块。但此次将拍卖的“奥本海默蓝钻”，饱和度和清晰度都属最高级别，达到“炫彩”(Fancy Vivid)等级。 |
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x*********g
发帖数: 11508 | 37 一年前的文章，现在读仍然很有意义。
http://www.bbc.co.uk/blogs/newsnight/paulmason/2009/11/rare_earth_the_new_great_game.html
Rare earth: The New Great Game
Post categories: China, Energy, Technology, Trade
Paul Mason | 14:57 UK time, Wednesday, 18 November 2009
The rare earth story goes to the heart of China's relationship with the West
- not just that, but to the heart of the West's inability to understand
China.
It is a complicated story, involving a whole chunk of the Periodic Table,
high secrecy, patent batt... 阅读全帖 |
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L*****s
发帖数: 6046 | 38 日本正式宣布内胆没有破掉。
http://news.blogs.cnn.com/2011/03/12/japan-earthquake-live-blog
引用:[3:37 p.m. ET, 5:37 a.m. Tokyo] Japanese authorities have informed
the International Atomic Energy Agency that the explosion at Unit 1 reactor
at the Fukushima Daiichi plant occurred outside the primary containment
vessel, not inside, the agency said Saturday. The plant operator, Tokyo
Electric Power Company (TEPCO), has confirmed that the integrity of the
primary containment vessel remains intact.
As a coun... 阅读全帖 |
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w*p
发帖数: 16484 | 39 In Japan plant, frantic efforts to avoid meltdown
Police officers wearing gas masks patrol in the area of the Fukushima power
plant's Unit 1 in Okumamachi, Fukushima Prefecture (state), northern Japan
AP – Police officers wearing gas masks patrol in the area of the Fukushima
power plant's Unit 1 in Okumamachi, …
* Ring of Fire Play Video Earthquakes Video:Ring of Fire ABC News
* Greg Palkot Live In Japan Play Video Earthquakes Video:Greg Palkot
Live In Japan FOX News
* Withstanding q... 阅读全帖 |
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w*********s
发帖数: 2136 | 40 【 以下文字转载自 WorldNews 讨论区 】
发信人: whiteclouds (/ 参考消息 /), 信区: WorldNews
标 题: Ann Coulter称核辐射为防癌之疫苗 。。。
发信站: BBS 未名空间站 (Wed Mar 23 03:33:03 2011, 美东)
'Radiation is good for you,' says Ann Coulter as she weighs in on Japan's
nuclear crisis
By David Gardner
Last updated at 9:35 PM on 18th March 2011
Conservative maverick Ann Coulter has poured scorn on growing fears over the
fallout from Japan’s nuclear crisis by claiming that ‘radiation is good
for you.’
With her bizarre outburst, Coulter became the... 阅读全帖 |
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a****1
发帖数: 654 | 41 Report: 'Dirty bomb' parts found in slain man's home
By Walter Griffin
Posted Feb. 10, 2009, at 10:22 p.m.
BELFAST, Maine — James G. Cummings, who police say was shot to death by his
wife two months ago, allegedly had a cache of radioactive materials in his
home suitable for building a “dirty bomb.”
According to an FBI field intelligence report from the Washington Regional
Threat and Analysis Center posted online by WikiLeaks, an organization that
posts leaked documents, an investigation into th... 阅读全帖 |
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c**i
发帖数: 6973 | 42 Sorry, my mistake--for not having kept myself up-to-date.
Machine tools is the fifth, not third, high-tech industry in Taiwan to have
reached 兆元產值.
(1) The third is light-emitting diode (LED). See
Tim Whitaker, PIDA Predicts Rapid Growth for LED Market in Taiwan. LEDs
magazine, Feb 2, 2011
http://www.ledsmagazine.com/news/8/2/3
(LED lighting + LED packing + LED epi (wafer & chips) in 2008)
Note:
(a) The "epi" stands for epitaxial (adj) or epitaxy (noun).
http://en.wikipedia.org/wiki/Epitaxy
(b)... 阅读全帖 |
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m*****e
发帖数: 1506 | 43 比他爹强，毕竟不是交大学报
Hydrogen flame synthesis of few-layer graphene from a solid carbon source on
hexagonal boron nitride
Tianquan Lin, Yaoming Wang, Hui Bi, Dongyun Wan, Fuqiang Huang, Xiaoming Xie
and Mianheng Jiang
J. Mater. Chem., 2012, Advance Article
DOI: 10.1039/C2JM16449C
Received 08 Dec 2011, Accepted 03 Jan 2012
First published on the web 13 Jan 2012
We report a new hydrogen flame synthesis method to successfully grow
graphene on h-BN flakes in 20 seconds without using any catalyst. At the
in... 阅读全帖 |
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w*********g
发帖数: 30882 | 44 中美共同发现首个硼“足球烯” 用于开发新纳米材料及储氢
字号:小中大2014-07-15 10:44:55
更多
398
关键字 >> 硼足球硼球烯中美科学家巴基球硼富勒烯原子硼足球分子碳基材料纳米材料
储氢科技前沿观察者头条头条
“硼化学和类富勒烯研究取得重大突破！”就在如火如荼的巴西世界杯落幕之际，13日
上午，山西大学分子科学研究所翟华金教授兴奋地向记者介绍说，山西大学、清华大学
、美国布朗大学及复旦大学化学家密切合作，首次发现了全硼富勒烯B40团簇(All-
Boron Fullerene)，并将其命名为硼球烯(Borospherene)。该研究成果于13日在国际权
威学术期刊《自然·化学》在线发表。
中美共同发现首个硼“足球烯” 用于开发新纳米材料及储氢
科学家成功打造出世界上第一颗全部由硼原子构成的“巴基球”(B40)
据《光明日报》消息，翟华金教授介绍，B40的发现是硼球烯实验和理论研究的开端，
是一个与碳富勒烯平行、具有广阔应用前景的科学研究新领域。研究表明，硼球烯和低
维硼纳米结构与相应碳富勒烯和低维碳纳米材料在性能上具有很强的互补性，两者结合
可能对解决人类面临的能... 阅读全帖 |
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m**********e
发帖数: 12525 | 45 你懂个屁
这叫质子-硼聚变（Proton-boron fusion），不是什么氢硼聚变
PB fusion的目的，是降低聚变过程中的中子产生数，因为中子是电中性，难以屏蔽，
聚变产生的中子具有巨大的杀伤力，采用PB fusion是降低核防护条件，而不是什么降
低聚变条件什么的，PB聚变条件比DH聚变条件更苛刻，产生能量更少 |
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发帖数: 1 | 46 牙齿问题根本是身体缺boron. 钙流失。先从牙齿骨骼开始。borax 是湖底天然沉淀物
。对人无害。省你至少几千刀。 |
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B**W
发帖数: 2273 | 47 看来确实不乐观，有点控制不住了
Tokyo (CNN) -- A meltdown may be under way at one of Fukushima Daiichi's
nuclear power reactors in northern Japan, an official with Japan's Nuclear
and Industrial Safety Agency told CNN Sunday.
"There is a possibility, we see the possibility of a meltdown," said
Toshihiro Bannai, director of the agency's international affairs office, in
a telephone interview from the agency's headquarters in Tokyo. "At this
point, we have still not confirmed that there is an actual meltdown, but
... 阅读全帖 |
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m*********a
发帖数: 3299 | 48 Jews .2% of world population, 20% of all Nobel prices, 40% of USA nobel
price, won more than 160 nobels.
All Asian are junk compare to Jewish people in your standard.
Literature[edit source | edit]
Year Laureate Country Rationale
1927 Bergson-Nobel-photo.jpg Henri Bergson[9][10] France "in
recognition of his rich and vitalizing ideas and the brilliant skill with
which they have been presented"[11]
1958 Boris Pasternak cropped.jpg Boris Pasternak[9][10] Sov... 阅读全帖 |
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w*********s
发帖数: 2136 | 49 'Radiation is good for you,' says Ann Coulter as she weighs in on Japan's
nuclear crisis
By David Gardner
Last updated at 9:35 PM on 18th March 2011
Conservative maverick Ann Coulter has poured scorn on growing fears over the
fallout from Japan’s nuclear crisis by claiming that ‘radiation is good
for you.’
With her bizarre outburst, Coulter became the latest celebrity to cause a
stir over controversial remarks on the disaster in Japan.
The right wing commentator was attempting to quell concern t... 阅读全帖 |
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c**********s
发帖数: 237 | 50 Hot-Selling 2011 Ford Edge Earns IIHS Top Safety Pick, Offers Standard
Safety Features, Leading Fuel Economy
The popular new 2011 Edge earned an Insurance Institute for Highway
Safety Top Safety Pick (for models built after February 2011), adding to
Ford’s leading number of top safety ratings
Edge sales are up 25 percent in 2011 as Ford’s stylish crossover
wrapped up March as its segment leader, accounting for 18 percent of medium
crossover sales
The 2011 Ford Edge is EPA-rated at an... 阅读全帖 |
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