y****k
发帖数: 71 | 1 想搭建一个cluster其中有一台高性能服务器。
第一要快，第二才是线程多。
到dell网站看了下，四个E7-8893 v2 的R920 要$37K,其中cpu $29K. 一个$7K
但是我很困惑的是，这么贵的cpu也就3.4Ghz
那x5690岂不是便宜太多，一个才$1.2K， 还快了0.06Ghz
请问这个E7-8893值这个价吗？
PowerEdge R920
Date 7/25/2014 1:42:30 PM Central Standard Time
Catalog Number 4 Retail 04
Catalog Number / Description Product Code Qty
SKU Id
PowerEdge R920:
PowerEdge R920 R920 1 [210-AAWE][329-BBOR] 1
Chassis Configuration... 阅读全帖 |
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l********o
发帖数: 17 | 2
Steps to clear BIOS settings:
1. Power down server.Do not unplug the power cord.
2.Open the server chassis.For instructions,see your server chassis
documentation.
3.Move jumper(J1D5)from the default operating position,covering pins 1 and
2, to the reset/clear position,covering pins 2 and 3.
4:Wait five seconds
5:Remove AC power.
6:Move the jumper back to default position,covering pins 1 and 2.
7:Power up the server.
The BIOS settings are now cleared and you can reset it by going into the
BIOS s... 阅读全帖 |
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S*****e
发帖数: 6676 | 3
Disk Bays
Up to 4 x 3.5" Fixed or up to 4 x 2.5" Fixed
Maximum Internal Storage
Up to 16TB SATA 3.5" chassis or up to 4TB SATA 2.5" chassis |
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s*******h
发帖数: 1361 | 4 不看看某outlet么.看了这贴,去刚随便扫了几台在cart里.
XPS 8920
Processor: Intel Core 7th Generation i5-7400 Processor (Quad Core, up to 3.
50 GHz, 6M Cache, 65W)
Windows 10 Home 64bit English
1TB SATA Hard Drive (7200 RPM)
256GB PCIe M.2 Class 40 Solid State Drive
8 GB DDR4 UDIMM Non-ECC 2400MHz (2x4GB)
Tray load DVD Drive (Reads and Writes to DVD/CD)
AMD Radeon RX 580 with 8GB GDDR5
Dell Outlet XPS 8920
Special Edition Aluminum Chassis
Outlet Price $805.00
Add-Ons $0.00
Total Price $805.00
XPS 8920
Process... 阅读全帖 |
|
f******o
发帖数: 2469 | 5 Lenovo-ThinkPad-X1-Carbon-2018-WQHD-HDR-i7-Laptop-Review
Pros
+
high-end, light, and slim chassis
+
very bright WQHD panel with wide color gamut
+
decent performance utilization of the quad-core CPU
+
modern port selection including regular USB Type-A
+
good system performance
+
excellent keyboard
+
long battery runtime
+
three-year warranty
+
fast SD reader...
Cons
-
...but only microSD and tricky to access
-
very glossy screen
-
HDR is not supported yet
-
high surface temperatures under load
-... 阅读全帖 |
|
|
f*****r
发帖数: 138 | 7 本人是做CFD计算的。公司最近计划把计算资源从server升级到小型 cluster。问了两
家做cluster的，他们报的配置如下（基于相同的预算）：
Cluster 1:
8 compute nodes @ 128 cores
Processor: Intel XEON e5-2667 v4 CPU (3.2GHz/3.6GHz HT) (16 X 8c)
Chassis: 4 x 1U x 2 Node chassis (1000 Watt power supply)
Memory: 8 x 128 GB DDR4-2400MHz LRDIMM (8 X 16 GB)
OS Data: 8 x 2 x 1TB SATA 7200 RPM 6Gbp/s
Interconnect: 8 x 56 Gbps Infiniband
Interconnect Switch: 12 port Mellanox FDR switch
Operating System: CENTOS 7
Cluster 2:
8 compute nodes @ 192 cores
Processor: Inte... 阅读全帖 |
|
f*****r
发帖数: 138 | 8 本人是做CFD计算的。公司最近计划把计算资源从server升级到小型 cluster。问了两
家做cluster的，他们报的配置如下（基于相同的预算）：
Cluster 1:
8 compute nodes @ 128 cores
Processor: Intel XEON e5-2667 v4 CPU (3.2GHz/3.6GHz HT) (16 X 8c)
Chassis: 4 x 1U x 2 Node chassis (1000 Watt power supply)
Memory: 8 x 128 GB DDR4-2400MHz LRDIMM (8 X 16 GB)
OS Data: 8 x 2 x 1TB SATA 7200 RPM 6Gbp/s
Interconnect: 8 x 56 Gbps Infiniband
Interconnect Switch: 12 port Mellanox FDR switch
Operating System: CENTOS 7
Cluster 2:
8 compute nodes @ 192 cores
Processor: Inte... 阅读全帖 |
|
p*********8
发帖数: 99 | 9 我一直对这个地的问题有兴趣
原来做industrial的产品，地分的很开，数字地，模拟地，chassis ground, 有的用
optical coupler来分地，因为距离远；有的考虑NEC standard, 从safety考虑，要有
chassis ground; 还有esd和lighting surge的考虑；还有的说AD的地；switch mode
power supply的地， quiet 地和noise 地...
后来看consumer的，貌似都很注意SI, 就用一个地；想想他们也有道理，用一个小导线
连上两个铜片，就相当于一个discontinuity,在天线理论，几何上的discontinuity是
radiate的条件之一。这样分地就会有radiate或者接受radiate的危险。。
希望有人能总结一下这个topic，或者讲讲各自的reference,这样大家可以互相学习 |
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c*********r
发帖数: 19468 | 10 the chassis of the Lotus Elise/Exige is mainly made of aluminum
it's light not because of its materials, but its lacking of many modern
components
you can check Evora's curb weight. it's nothing surprising at all, altough
it sports a similar chassis but with "necessary" add-ons (such as powre
steering).
using |
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y*******n
发帖数: 10103 | 11 碳纤维的chassis，车身重量65%是合成材料（包括碳纤维） 35%是铝，几乎没有用钢材。
保时捷 卡雷拉GT也是全碳纤维chassis，msrp 44万刀。
zonda 1999年一出来的时候，价格35万刀
所以LFA这个也不算离谱。
只不过FR感觉够不上Supercar的档次。 |
|
f********m
发帖数: 8397 | 12 http://www.autoblog.com/2011/02/21/2012-fisker-karma-first-driv
road-test/
Hollywood, Your Plug-In Hybrid Electric Has Arrived
2012 Fisker Karma – Click above for high-res image gallery
Business partners Henrik Fisker and Bernhard Koehler are visibly on
edge. While they want to dedicate every ounce of their focus on this
all-important launch of their first baby, the 2012 Fisker Karma, their
attentions are being constantly pulled away from it by big conference
calls regarding the money and logist... 阅读全帖 |
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i****x
发帖数: 17565 | 13 rx8 is pure sports car period
rigid chassis, perfect balance, great handling, FR, low weight and center of
gravity, stock LSD
power isn't everything man.
miata has most of these features but missing rigid chassis and stock LSD.
there is an option for LSD I think. |
|
c*********r
发帖数: 19468 | 14 碳陶制动哪个吊丝车有？我还真没印象，光这个玩意本身就是大几千甚至上万刀的东东
了……
其它几个单拆出来虽然不是很贵，但是组合在一起就是另外的问题了……
如果你说的吊丝车就是指muscle car的话，很简单：
muscle car从诞生之日起就是和sports car互斥的概念
严格意义上说，sports car必须是有purpose-built的chassis
而muscle car则是轿车chassis衍生车型，严格意义上的muscle car必须是双门四座
midsize
只是后来size方面没有那么严格了，但双门四座基本上还是必须的
除非是SVT Cobra R、Boss 302 Laguna Seca这种去掉后座的衍生型
虽然是两座，但是除了没后座其它都和原型车的驾驶舱没有本质区别
以上说的是传统，技术上说这也是有道理的，因为按你说的，就是sports car了
再便宜的sports car，它也是sports car，而不是muscle car
GT500
mx5 |
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p*********e
发帖数: 32207 | 15 ☆─────────────────────────────────────☆
fatboat (極.品.飛.車) 于 (Fri Aug 28 11:45:47 2009, 美东) 提到:
前两天去看了一辆porsche 944
我查了一下,transmission在rear axe以后了
导致trunk很浅
这样对weight distribution不是很有好处么？除了trunk会变小点
现在的FR车是不是变速箱都在前轴后面？
☆─────────────────────────────────────☆
owenxguo (特别丑) 于 (Fri Aug 28 11:48:41 2009, 美东) 提到:
corveete还是后面吧，现在车的材料和设计都更先进，全部放在前面也可以很好的平衡
前后车重，基本没啥必要放后面。
☆─────────────────────────────────────☆
pandamalone (0000~史前圣灵猫熊) 于 (Fri Aug 28 11:49:07 2009, 美东) 提到:
简单的说，基于成本的考虑
... 阅读全帖 |
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V***b
发帖数: 3419 | 16 其实F30还是同级最好的，其他家发动机变速箱这些模块化的东西可以拿更好的来用，
chassis就没办法了，是个全局的东西，纤一发动全身，，C63努力了半天还是头重脚轻
，奥迪就不用说了，ATS开发过程原样照抄3，最后操控还是赶不上，packaging 就差更
远，3的各大件都没的说吧，chassis其他家谁不服？ |
|
V***b
发帖数: 3419 | 17 C300变速箱不行啊。不过奔驰喜欢暴力增压发动机多打鸡血可以超过328弥补变速箱的
差距，新9AT说不定一发力能超过8HP，这些都是模块化的东西，就像CLLA45AMG可以做
到直线弯道都比M235i快一样。但全新的W205 chassis还是不如328，55.5/44.5的重量
分布，轴距长了40mm，车身长62mm，车内空间差不多，至少legroom是一样的，chassis
和packaging还真是看功力. |
|
V***b
发帖数: 3419 | 18 其实F30还是同级最好的，其他家发动机变速箱这些模块化的东西可以拿更好的来用，
chassis就没办法了，是个全局的东西，纤一发动全身，，C63努力了半天还是头重脚轻
，奥迪就不用说了，ATS开发过程原样照抄3，最后操控还是赶不上，packaging 就差更
远，3的各大件都没的说吧，chassis其他家谁不服？ |
|
V***b
发帖数: 3419 | 19 C300变速箱不行啊。不过奔驰喜欢暴力增压发动机多打鸡血可以超过328弥补变速箱的
差距，新9AT说不定一发力能超过8HP，这些都是模块化的东西，就像CLLA45AMG可以做
到直线弯道都比M235i快一样。但全新的W205 chassis还是不如328，55.5/44.5的重量
分布，轴距长了40mm，车身长62mm，车内空间差不多，至少legroom是一样的，chassis
和packaging还真是看功力. |
|
f********m
发帖数: 8397 | 20 http://www.greencarreports.com/news/1095656_bmw-to-phase-out-co
It's a vision that seems like something from a future century: a carmaker
preparing to phase out combustion engines altogether.
The notion that an entire brand could walk away from the hydrocarbon-fueled
engines that power more than 1 billion vehicles on our roads--and have done
since 1885--is inconceivable.
And yet that's what one industry analyst suggests famed German luxury maker
BMW is preparing to do.
2014 BMW i3 and 2014 Tesla... 阅读全帖 |
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e*******e
发帖数: 1144 | 21 之前预售的R是39k出头，包括了SE和Autobahn的那些东西，再加DSG，lighting pkg，
performance pkg，driver assit pkg以及dynamic chassis control。
GTI要是这么fully loaded也得35k+了，还不带new engine，awd和dynamic chassis
control。 |
|
c*********r
发帖数: 19468 | 22 在C/D做的228i和CLA 250、A3的对比测试中，228i输给A3，C/D是这么说的：
“But the real reason the 228i finishes second in this test has nothing to
do with pricing. It’s that the BMW enjoys every dynamic advantage in terms
of curb weight, drivetrain configuration, power, and test-track speed, yet
manages to be only fractionally more thrilling than the Audi. Some blame
falls on the Bridgestone run-flat tires, which lack grip. Note how badly the
228i’s 0.86-g skidpad performance lags the others. On a fast road, the car
can ... 阅读全帖 |
|
V***b
发帖数: 3419 | 23 Chassis/Suspension (5/5)
车身不慢，不是有anti-roll bar嘛 24 mm front, 20 mm rear（跟2000比肯定慢）。
作为GTI的定位来说Chassis/Suspension调校毫无疑问5/5
soft spring + stiff damper
路感清晰的同时舒适性好，soft spring保持轮胎持续贴地，转向侧倾anti-roll bar来
控制。弹簧也不是特别弱，否则damper恢复原位太慢。GTI的底盘悬挂调校是这车最大
的优点，soft spring + stiff damper + thick anti-roll bar = PERFECTION
stiff spring + stiff damper
上赛道的设置，日常太颠
stiff spring + soft damper
会很bouncy, 悬挂几何不好控制，轮胎也不会很贴地
soft spring + soft damper
丰田名车“花中之冠”设置 |
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w*******y
发帖数: 60932 | 24 If you're looking for a full-featured netbook and the 10" keyboards are just
too small -
Buy.com has the Gateway EC1457U Notebook, 1.30GHz Intel Pentium SU4100, 4GB
DDR2, 320GB HDD, 6-Cell, 11.6" Display, Webcam, Windows 7 Home Premium 64-
bit:
http://www.buy.com/prod/Gateway-EC1457U-Notebook-PC/q/loc/101/217470162.html
for $449.99 shipped
Features
Processor: Intel Pentium Processor SU41001 (1.3GHz, 800MHz FSB, 2MBL2 Cache)
Operating System: Genuine Windows 7 Home Premium
Memory: 4096MB DDR2 ... 阅读全帖 |
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w*******y
发帖数: 60932 | 25 Not to shabby of a deal geeks.com has the Aurora R3 i7 2600, 580gtx, 8gb ram
system for 1279.99 - 10% (urlhasbeenblockedS) ???
Link:
http://www.geeks.com/details.asp?invtid=AURORA-R3-I734-R&cat=SY
Almost less than cost to build from scratch, seeing as the 580gtx 1.5 gb is
400 AR and the 2600 is 299 at the egg around... oh and I think its water
cooled for the cpu as well too.
Shipping is $67 in TX
Total for me 1279.99 -10% + 67 S&H = $1219
Enjoy maximum gaming power with this Dell Alienware Auror... 阅读全帖 |
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w*******y
发帖数: 60932 | 26 Link:
http://www.amazon.com/GAMMA-Classic-Interior-Chassis-Black/dp/B
GAMMA Classic Series ATX Mid Tower Interior Steel Chassis
Product Features
* 6 fan capability ( one rear 120mm included )
* Black Interior
* Wire routing: motherboard punched holes allows for quick CPU bracket
removable and optimal wire routing, turned HDD also helps with managing
cables
* High end graphics card support, the Gamma features space that is
especially designed to fit longer 10.5-Inch cards
Technica... 阅读全帖 |
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b**********a
发帖数: 930 | 27 方舟子再度被曝抄袭 网友称其剽窃美国教授遭到怒斥(图)
近日，在深圳大学传播系副主任孙海峰微博爆料方舟子著作《大象为什么不长毛》
涉嫌剽窃图表后，又被曝抄袭美国Root Bernstein教授论文，而网友“打假巡抚”更爆
料称方舟子曾多次抄袭国内外专家文章。
方舟子（资料图）
近日，在深圳大学传播系副主任孙海峰微博爆料方舟子著作《大象为什么不长毛》
涉嫌剽窃图表后，又被曝抄袭美国Root Bernstein教授论文，而网友“打假巡抚”更爆
料称方舟子曾多次抄袭国内外专家文章。
网友“打假巡抚”6日在微博中爆料，在方舟子发表的文章中曾经多次抄袭国内外
专家学者的论文，其中：2010年3月24日在《中国青年报》发表的《转基因玉米更有益
健康》抄袭自Bruce Chassy and Drew Kershen 2004年10月27日在美国西部农场通讯
Western Farm Press 上发表的文章《Bt corn reduces serious birth defects》；
2006年10月11日在《中国青年报》发表的《啄木鸟为什么不头疼？》大段抄袭美国加州
大学Ivan R Schwa... 阅读全帖 |
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c***s
发帖数: 70028 | 28 近日，在深圳大学传播系副主任孙海峰微博爆料方舟子著作《大象为什么不长毛》涉嫌剽窃图表后，又被曝抄袭美国Root Bernstein教授论文，而网友“打假巡抚”6日在微薄中更爆料称方舟子曾多次抄袭国内外专家文章。
方舟子（资料图）
近日，在深圳大学传播系副主任孙海峰微博爆料方舟子著作《大象为什么不长毛》涉嫌剽窃图表后，又被曝抄袭美国Root Bernstein教授论文，而网友“打假巡抚”更爆料称方舟子曾多次抄袭国内外专家文章。
网友“打假巡抚”6日在微博中爆料，在方舟子发表的文章中曾经多次抄袭国内外专家学者的论文，其中：2010年3月24日在《中国青年报》发表的《转基因玉米更有益健康》抄袭自Bruce Chassy and Drew Kershen 2004年10月27日在美国西部农场通讯Western Farm Press 上发表的文章《Bt corn reduces serious birth defects》；2006年10月11日在《中国青年报》发表的《啄木鸟为什么不头疼？》大段抄袭美国加州大学Ivan R Schwab教授于2002年发表在英国眼科学杂志 Br J Ophtha... 阅读全帖 |
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c*******e
发帖数: 8624 | 29 这英文,哪个WSN编的吧
嫌剽窃图表后，又被曝抄袭美国Root Bernstein教授论文，而网友“打假巡抚”6日在
微薄中更爆料称方舟子曾多次抄袭国内外专家文章。
嫌剽窃图表后，又被曝抄袭美国Root Bernstein教授论文，而网友“打假巡抚”更爆料
称方舟子曾多次抄袭国内外专家文章。
家学者的论文，其中：2010年3月24日在《中国青年报》发表的《转基因玉米更有益健
康》抄袭自Bruce Chassy and Drew Kershen 2004年10月27日在美国西部农场通讯
Western Farm Press 上发表的文br />
一事，虽然方舟子回应称已经向Root·Bernstein教授作出解释和交代。但有网友指出
Root Bernstein教授并未接受方舟子的道歉，反而写邮件对方舟子给予重责：“你除了
自定规则是不遵守他人规则的……你迄今回应你是打假专家，你br />
Bernstein教授公开信全文及译文：
insist on making your emails to me, and mine in return, public? In the first
p... 阅读全帖 |
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y****i
发帖数: 1050 | 30 The first appearance of the Tiger on the Eastern Front was unsuccessful. The
first Tigers were issued to the 1st platoon of the 502 Battalion of Heavy
Tanks (Schwere Panzer Abteilung 502). On the 29th of August 1942, the four
Tigers arrived at the Mga railway station near Leningrad. Early that day,
the tanks were unloaded and prepared for battle. At 11:00 AM, the Tigers
went into their battle positions. Major Richard Merker commanded the platoon
, which included four Tigers, six PzKpfw III Ausf.... 阅读全帖 |
|
y****i
发帖数: 1050 | 31 The first appearance of the Tiger on the Eastern Front was unsuccessful. The
first Tigers were issued to the 1st platoon of the 502 Battalion of Heavy
Tanks (Schwere Panzer Abteilung 502). On the 29th of August 1942, the four
Tigers arrived at the Mga railway station near Leningrad. Early that day,
the tanks were unloaded and prepared for battle. At 11:00 AM, the Tigers
went into their battle positions. Major Richard Merker commanded the platoon
, which included four Tigers, six PzKpfw III Ausf.... 阅读全帖 |
|
y****i
发帖数: 1050 | 32 The first appearance of the Tiger on the Eastern Front was unsuccessful. The
first Tigers were issued to the 1st platoon of the 502 Battalion of Heavy
Tanks (Schwere Panzer Abteilung 502). On the 29th of August 1942, the four
Tigers arrived at the Mga railway station near Leningrad. Early that day,
the tanks were unloaded and prepared for battle. At 11:00 AM, the Tigers
went into their battle positions. Major Richard Merker commanded the platoon
, which included four Tigers, six PzKpfw III Ausf.... 阅读全帖 |
|
x*********g
发帖数: 11508 | 33 http://www.wired.com/threatlevel/2010/10/fbi-tracking-device/
A California student got a visit from the FBI this week after he found a
secret GPS tracking device on his car, and a friend posted photos of it
online. The post prompted wide speculation about whether the device was real
, whether the young Arab-American was being targeted in a terrorism
investigation and what the authorities would do.
It took just 48 hours to find out: The device was real, the student was
being secretly tracked and ... 阅读全帖 |
|
x*********g
发帖数: 11508 | 34 哈哈，那贴讲的是这么个事情：
http://www.wired.com/threatlevel/2010/10/fbi-tracking-device/
Caught Spying on Student, FBI Demands GPS Tracker Back
* By Kim Zetter Email Author
* October 7, 2010 |
* 10:13 pm |
* Categories: Surveillance
*
A California student got a visit from the FBI this week after he found a
secret GPS tracking device on his car, and a friend posted photos of it
online. The post prompted wide speculation about whether the device was real
, whether the young Arab-American... 阅读全帖 |
|
i*****r
发帖数: 318 | 35 楼主不懂通信不要乱说。
底层芯片就是爱立信，诺基亚，阿尔卡特都从芯片厂商买。
产业链有分工。
一个 chassi里，芯片有三星，有摩托，这很正常。
一个HLR的服务器里有oracle,sun的服务器也很正常。
H和Z做的很不错了。你不懂就不要乱评论。 |
|
f**k
发帖数: 348 | 36 2012-02-06 19:57:28 来源: 网易娱乐 有3452人参与 手机看新闻 转发到微博(18)
近日，在深圳大学传播系副主任孙海峰微博爆料方舟子著作《大象为什么不长毛》涉嫌
剽窃图表后，又被曝抄袭美国Root Bernstein教授论文，而网友“打假巡抚”更爆料称
方舟子曾多次抄袭国内外专家文章。
方舟子（资料图）
网易娱乐2月6日报道（文/小易） 近日，在深圳大学传播系副主任孙海峰微博爆料方舟
子著作《大象为什么不长毛》涉嫌剽窃图表后，又被曝抄袭美国Root Bernstein教授论
文，而网友“打假巡抚”更爆料称方舟子曾多次抄袭国内外专家文章。
网友“打假巡抚”6日在微博中爆料，在方舟子发表的文章中曾经多次抄袭国内外专家
学者的论文，其中：2010年3月24日在《中国青年报》发表的《转基因玉米更有益健康
》抄袭自Bruce Chassy and Drew Kershen 2004年10月27日在美国西部农场通讯
Western Farm Press 上发表的文章《Bt corn reduces serious birth defects》；
2006年10月11日在《中... 阅读全帖 |
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f*******e
发帖数: 2791 | 37 凤凰网易等开始开炮：
近日，在深圳大学传播系副主任孙海峰微博爆料方舟子抄袭美国Root路Bernstein教
授论文后，网友“打假巡抚”再次爆料称方舟子曾多次抄袭国内外专家文章。
网友“打假巡抚”6日在微博中爆料，在方舟子发表的文章中曾经多次抄袭国内外
专家学者的论文，其中：2010年3月24日在《中国青年报》发表的《转基因玉米更有益
健康》抄袭自Bruce Chassy and Drew Kershen 2004年10月27日在美国西部农场通讯
Western Farm Press 上发表的文章《Bt corn reduces serious birth defects》；
2006年10月11日在《中国青年报》发表的《啄木鸟为什么不头疼？》大段抄袭美国加州
大学Ivan R Schwab教授于2002年发表在英国眼科学杂志 Br J Ophthalmol 2002;86:
843 的一篇文章《Cure for a headache》；2006年12月11日在《经济观察报》发表的
《现代药物是怎么开发出来的》一文抄袭作者“颍河”发表在新语丝”新到资料”的《
认识药物》系列文章。
而对... 阅读全帖 |
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s****n
发帖数: 8912 | 38 网易娱乐2月6日报道（文/小易） 近日，在深圳大学传播系副主任孙海峰微博爆料方舟
子著作《大象为什么不长毛》涉嫌剽窃图表后，又被曝抄袭美国Root Bernstein教授论
文，而网友“打假巡抚”更爆料称方舟子曾多次抄袭国内外专家文章。
网友“打假巡抚”6日在微博中爆料，在方舟子发表的文章中曾经多次抄袭国内外专家
学者的论文，其中：2010年3月24日在《中国青年报》发表的《转基因玉米更有益健康
》抄袭自Bruce Chassy and Drew Kershen 2004年10月27日在美国西部农场通讯
Western Farm Press 上发表的文章《Bt corn reduces serious birth defects》；
2006年10月11日在《中国青年报》发表的《啄木鸟为什么不头疼？》大段抄袭美国加州
大学Ivan R Schwab教授于2002年发表在英国眼科学杂志 Br J Ophthalmol 2002;86:
843 的一篇文章《Cure for a headache》；2006年12月11日在《经济观察报》发表的
《现代药物是怎么开发出来的》一文抄袭作者“颍河... 阅读全帖 |
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z****0
发帖数: 3942 | 39 Are foods made using biotechnology safe to eat?
by Jonathan Strickland
Agricultural biotechnology is the science of using genes to alter crops. Why
would scientists want to fiddle with a plant's genes? The reasons range
from improving crop yields to designing plants that are resistant to pests
and disease. But are these genetically modified foods safe to eat?
The short answer is yes. Scientists around the world have conducted multiple
studies on genetically modified food and found that the food ... 阅读全帖 |
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d*b
发帖数: 21830 | 40 你刚才还说最高档的DE30才上万，现在不是最高档的都4万了，这4万的机器有gov的
clearance么？你一个垃圾码工估计都没接触过带chassis lock的机器吧？ |
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T**********e
发帖数: 29576 | 41 SpaceX在原有摩擦焊接技术上发展出新了方法。
SpaceX Shares Unique Friction Welding Technique With Tesla
Specifically, SpaceX shared its own method of friction stir welding with
Tesla Motors. While friction welding predates both SpaceX and Tesla (and
your writer, in fact), SpaceX has developed its own unique method apparently
. Rather than use heat to melt two pieces of metal or alloy together,
friction welding softens the metal on both sides of the weld in order to
merge them together. This maintains the strength o... 阅读全帖 |
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发帖数: 1 | 42 他们连换机油的full service到底是什么都不会知道的。。。
During a full-service oil change, an Auto Service Professional will:
Change your vehicle's motor oil using full synthetic oil, synthetic
blend, or high mileage motor oil, depending on your vehicle
Replace and recycle your cars used oil and oil filter
Check your vehicle's cabin filter and air filter as needed, as well as
any other filters
Perform a courtesy inspection, where the automotive technician will:
Top off fluids (including window ... 阅读全帖 |
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p****e
发帖数: 350 | 43 中国在进步，别人也在进步。
你就不要拿飞机汽车那点成就来搞笑了。大飞机的飞控，航电，液压，起落架等等的技
术全是欧美的，更不要说发动机。我跟618所的人聊，说起飞控技术和美国的差距，个
个摇头叹气。汽车1800万产量又如何，国内车企，要么是一汽上汽这样的死心塌地做买
办，要么是local oem 在逆向工程的方向上越走越远，越陷越深。汽车的 ems，abs，
transmission，steering，chassis几大系统中国都没有核心技术。除了通用大众这样
的整车厂，博世，德尔福这样的零部件和系统供应商一样赚得盆满钵满。更可怕的是，
我看不到中国又掌握这些技术的希望。中国这么多年，搞出一台性能优良，质量稳定可
靠的发动机了吗？以市场换技术的想法，纯粹是一相情愿。
国内企业的工作氛围和欧美的很不一样，我没有看到踏踏实实靠技术或者应用现代企业
管理方法做好的企业。看中国的工业标准，要么粗制滥造，要么原样翻译iso标准。网
上的说法没有德国的机床中国机械制造要倒退xx年，不是危言耸听，想想吧，如果再没
有国外的cad，cae软件中国的制造业能干什么？
这些年来，中国本土说得上有作为的企业... 阅读全帖 |
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m******n
发帖数: 15691 | 44 某些东西核心技术是还有欠缺，这个没人否认
不过我想问问你，30年前 中国怎么个跟美日西欧一个水平？
中国在进步，别人也在进步。
你就不要拿飞机汽车那点成就来搞笑了。大飞机的飞控，航电，液压，起落架等等的技
术全是欧美的，更不要说发动机。我跟618所的人聊，说起飞控技术和美国的差距，个
个摇头叹气。汽车1800万产量又如何，国内车企，要么是一汽上汽这样的死心塌地做买
办，要么是local oem 在逆向工程的方向上越走越远，越陷越深。汽车的 ems，abs，
transmission，steering，chassis几大系统中国都没有核心技术。除了通用大众这样
的整车厂，博世，德尔福这样的零部件和系统供应商一样赚得盆满钵满。更可怕的是，
我看不到中国又掌握这些技术的希望。中国这么多年，搞出一台性能优良，质量稳定可
靠的发动机了吗？以市场换技术的想法，纯粹是一相情愿。
国内企业的工作氛围和欧美的很不一样，我没有看到踏踏实实靠技术或者应用现代企业
管理方法做好的企业。看中国的工业标准，要么粗制滥造，要么原样翻译iso标准。网
上的说法没有德国的机床中国机械制造要倒退xx年，不是危言耸听，想... 阅读全帖 |
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i*****s
发帖数: 15215 | 45 We are going to visit one of the units of Air Defense in the Moscow region
which has a famous Russian anti-aircraft weapon system S-400 “Triumph” of
a new generation.
The S-400 uses 3 different missiles to cover its entire performance envelope
. These are the extremely long range 40N6, long range 48N6 and medium range
9M96 missile. Each one has different capabilities.
The system is intended to destruct all modern and future means of aero-space
attack.
The system was put into service in April, 20... 阅读全帖 |
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l****z
发帖数: 29846 | 46 By Greg Autry and Peter Navarro
December 11, 2011
A Los Angeles firm has quietly assembled a Trojan horse electric car
designed to carry the Chinese military-industrial complex deep into America'
s auto market. Detroit should be afraid, very afraid. And anyone in the U.S.
unemployment line — along with American taxpayers, who are subsidizing
this sham — should be outraged.
The car is branded Coda and debuted at the L.A. Auto Show. While Coda
Automotive salespeople were eager to portray it as "Al... 阅读全帖 |
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l****z
发帖数: 29846 | 47 Coda Holdings Inc., parent of the electric-car maker backed by billionaire
Philip Falcone, filed for bankruptcy and will seek to sell its assets to a
group led by a Fortress Investment Group LLC (FIG) unit for $25 million.
The Los Angeles-based company, whose Coda Automotive unit also sought court
protection, listed assets of as much as $50 million and debt of as much as $
100 million today in the Chapter 11 filing in Wilmington, Delaware. The
company said it intends to sell its assets within 45... 阅读全帖 |
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u**s
发帖数: 9 | 48 Part V
With a minimum shatter on the chassis, I heard this incredible roaring from
the back of my head…..She comes alive……Sitting behind the steering
wheel…..with 650 horses under my right foot……I was so afraid I would
operate something wrong……double checked the rear mirror….well…it is hard
to call that a rear view…..but you do get to see the top of the V12 from the
mirror every time with a glance…..double checked the side mirrors….I found
it’s kind of funny that the 2 side mirrors are mounted f |
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a*******t
发帖数: 891 | 49 Volkswagen is the leader in successful shared platform marketing. With only
four platforms to choose from, they manufacture over 30 different vehicles
around the world. Believe it or not, the Volkswagen Beetle and Audi TT sit
on the same chassis as the Volkswagen Jetta, Volkswagen Golf, Audi A3 (not
sold in the US), and various Skoda and SEAT offerings in Europe.
The world's automotive industry increasingly depends on shared platforms.
They enable manufacturers to market essentially identica |
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