o*****s
发帖数: 1445 | 1 Tesla Motors refers to the Roadster's battery pack as the Energy Storage
System or ESS. The ESS contains 6,831 lithium ion cells arranged into 11 "
sheets" connected in series; each sheet contains 9 "bricks" connected in
series; each "brick" contains 69 cells connected in parallel (11S 9S 69P).
The cells are of the 18650 form-factor commonly found in laptop batteries.
Sources disagree on the exact type of Li-Ion cells - GreenCar says lithium
cobalt oxide (LiCo),[104] while researchers at DTU/INE... 阅读全帖 |
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w********1
发帖数: 3492 | 2 Mon, 23 Jul 2012 20:53:30 PDT
In addition to coverage of all-new iPod touch and iPod nano models in his
report released earlier today, KGI Securities analyst Ming-Chi Kuo also
offered more predictions about Apple's iOS device plans for the September-
October timeframe. According to Kuo, Apple is looking to launch the next-
generation iPhone in September, perhaps closer to the beginning of the month
. But with component shortages and limited on-sale time during the quarter
following an expected ... 阅读全帖 |
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w****l
发帖数: 535 | 3 processor: Intel Core 2 Duo E4300 Allendale 1.8GHz $115 from newegg
case and power: Antec Sonata II $50 AR from frys
video card: EVGA 256-P2-N615-TX 7600GT 256MB $90+6 AR from newegg
ram: STT DDR2-667 2x1GB CL5 S-RIGID $57 from eWiz
motherboard: MSI P6N SLI-FI $109.2 from Mwave
SONY 1.44MB BLACK FLOPPY $4.89 from Mwave
ARCTIC SILVER 5 THERMAL COMPOUND 3.5g $6.5 from Mwave
SAMSUNG DUAL DVD RW DRIVE(Bare drive) $27.99 from Mwave
shipping from Mwave $13.59
total $479.17
Note:
thermal compound是看rev |
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h****t
发帖数: 632 | 4 下面是我用PC wizard测得温度，这正常吗
Processor Temperature : 85 °C，这个是指的CPU的温度吗？但是后面还有个
processor的温度，。。
Hardware Monitoring : ITE IT8718F
Voltage CPU : 1.10 V
+3.3V Voltage : 3.30 V
+5V Voltage : 5.10 V
+12V Voltage : 12.01 V
VTT : 3.04 V
VBAT : 3.06 V
Processor Fan : 1157 rpm
Chassis Fan : 10 rpm
Power/Aux Fan : 1234 rpm
Processor Temperature : 85 °C
Mainboard Temperature : 38 °C
ACPI Thermal Zone : 40 °C
:
Processor : Thermal Diode
Intel Core 2 Duo (Core 1) : |
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h**2
发帖数: 2841 | 5 盒装的E8200，stock heat sink下面有两条硅脂，我以为扣上压紧之后会压开，莫非需
要自己抹匀？ [update: 网上有人说就这样可以了，受热后stock thermal grease会自己展开，但我的温度怎么还是50多度呢？]
EP43-DS3L有C1E, C2E, C4E，我一股脑都enable了，everest CPU ID平时看是1999MHz
（6x333Mhz），有程序运行的时候是2666Mhz (8x333Mhz)
我想回Microcenter买个3块钱的thermal grease，但stock cooler装上去都费了老半天
劲，咋拆阿？ |
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u*******n
发帖数: 11 | 6 【 以下文字转载自 shopping 讨论区 】
发信人: uwmadison (BigCat), 信区: shopping
标 题: 笔记本要好，CPU TDP better <35W
发信站: BBS 未名空间站 (Mon May 3 19:20:22 2010, 美东)
Intel most DuoCore CPU's thermal design power<= 35W
Intel i3/i5 TDP <= 35W, but i7 >= 45W
i7 is not good for 14'/15' notebook design, if no special cooling system
designed.
Thermal capability is the true boundary of notebook's reliability!!!! |
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t*******y
发帖数: 2432 | 7 thermal paste or thermal compound |
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u**r
发帖数: 663 | 8 检测了内存具体参数，有两个参数有区别：
*Memory Timings 的后一半 27-86-4-8-4-4 vs 27-59-4-8-4-4
*Auto Self Refresh. Elpida不支持
有人知道这俩会造成兼容性问题么？
内存条1，4gb PNY
Field Value
Memory Module Properties
Module Name PNY Electronics
Serial Number None
Module Size 4 GB (2 ranks, 8 banks)
Module Type SO-DIMM
Memory Type DDR3 SDRAM
Memory Speed DDR3-1066 (533 MHz)
Module Width 64 bit
Module Voltage 1.5 V
Error Detection Method None
Memory Timings
@ 533 MHz 7-7-7-20 (CL-RCD-RP-RAS) / 27-... 阅读全帖 |
|
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r*******e
发帖数: 7583 | 10 除非你想把散热器永远粘死在CPU上才需要adhesive
否则就用你的compound就好了 |
|
|
j*******o
发帖数: 75 | 12 不知是我手笨还是它真的难装，反正我装了一个半小时才搞定。。。
本来已经拧在机箱上的主板又重新拆下，所有连接线断开，就为了装主板背面的风扇底
座。。。
另外有个问题，当时thermal compound抹得有点多，然后装的时候又为了对准螺孔挪来
挪去，导致有些thermal compound流到了CPU和卡槽之间的缝里。虽然已经用纸把能及
的地方都擦干净了，但担心有残留。这液体对CPU有影响吗？怕短路。。。 |
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b****e
发帖数: 1839 | 13 去bestbuy and office dept 转了转，看了一下$250~$350 的电脑，比较倾向于买个东
芝的。大概4M-6M的内存，500G的硬盘，但担心windows 8 的系统和我这堆宝贝软件不
配。
在bestbuy 买了$10 的thermal paste. 换上新的thermal paste 后原来自检时的错误
4600：021E Processor CPU internal terperature -critical 消失。现用HWmonitor
监视。希望能熬个四五小时不down. |
|
b****a
发帖数: 300 | 14 刨开结霜因素，还有三个问题。
- 每一次开关机就是一个thermal shock，虽然温差不像真正的thermal shock测试那么
大，但也差不多两倍于正常范围。长时间不知道有什么结果
- bois电池不知道能撑多久，倒是不值钱
-电容，特别是电解电容虽然参数上在冰箱这个温度不会有问题，但容量肯定比室温偏
小。特别遇到个别体质不好的，室温下还算凑合用，温度一低就罢工了 |
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z*********e
发帖数: 10149 | 15 GTX 1080
EVGA GeForce GTX 1080 FOUNDERS EDITION, 08G-P4-6180-KR, 8GB GDDR5X $439
.99
EVGA GeForce GTX 1080 SC2 GAMING, 08G-P4-6583-KR, 8GB GDDR5X, iCX - 9
Thermal Sensors & LED G/P/M See price in cart
EVGA GeForce GTX 1080 FTW2 GAMING, 08G-P4-6686-RX, 8GB GDDR5X, iCX - 9
Thermal Sensors & RGB LED G/P/M See price in cart
GTX 1070
GTX 980Ti
EVGA GeForce GTX 980 Ti GAMING ACX 2.0+ $495.99
EVGA GeForce GTX 980 Ti VR EDITION GAMING $527.99 |
|
发帖数: 1 | 16 Silicon Carbide: Smaller, Faster, Tougher
Meet the material that will supplant silicon in hybrid cars and the electric
grid
Illustration: Anatomy Blue
Some technological revolutions are flashy, and some are almost invisible. We
’re quite familiar with the flashy ones; they’ve given us powerful
computers we can hold in the palms of our hands, devices that can pinpoint
our locations by way of orbiting satellites, and the ability to bank and
shop without leaving our homes.
But none of these innovat... 阅读全帖 |
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发帖数: 1 | 17 What Happened To GaN And SiC?
Early predictions were overly optimistic, but these technologies are
starting to make inroads.
About five years ago, some chipmakers claimed that traditional silicon-based
power MOSFETs had hit the wall, prompting the need for a new power
transistor technology.
At the time, some thought that two wide-bandgap technologies—gallium
nitride (GaN) on silicon and silicon carbide (SiC) MOSFETs—would displace
the ubiquitous power MOSFET. In addition, GaN and SiC were suppos... 阅读全帖 |
|
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s********l
发帖数: 2 | 19 Article: Hydrothermal syntheses, crystal structures and thermal stabilities
of three lanthanide(III) diphosphonates
Author: Hydrothermal syntheses, crystal structures and thermal stabilities
of three lanthanide(III) diphosphonates Chen, Hui
Journal: Journal of coordination chemistry
ISSN: 0095-8972 Date: 2009
Volume: 62 Issue: 2 Page: 294
Please send to j*****[email protected]. Thanks a lot! |
|
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y***o
发帖数: 416 | 21 Polymer Engineering & Science
Volume 39, Issue 8, pages 1444–1455, August 1999
Thermal characterization of ethylene polymers prepared with metallocene
catalysts
P. Starck*, P. Lehmus, J. V. Seppälä
Polymer Engineering & Science
Volume 43, Issue 12, pages 1878–1888, December 2003
Quantitative determination of short-chain branching content and distribution
in commercial polyethylenes by thermally fractionated differential scanning
calorimetry
Mingqian Zhang, Sieghard E. Wanke
链接：
http://... 阅读全帖 |
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a*****c
发帖数: 53 | 22 Postdoctoral Fellow Openings
UCLA Materials Science and Engineering Department
Polymer and nanocomposite syntheses,
solution-based coating, thin film devices
The Soft Materials Research Laboratory directed by Professor Qibing
Pei in the Department of Materials Science and Engineering, UCLA,
is an interdisciplinary research group developing synthetic polymers
and nanocomposites for stretchable electronics, electromechanical, and
photonic devices. We anticipate availability of multiple postdoctora... 阅读全帖 |
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L****a
发帖数: 572 | 23 solar thermal 主要是 utility market, 一般都得建在沙漠这种地方, 离城市
很远. 对于 distributed solar power 来说 PV 是唯一选择. solar thermal
的主要优点是可以把供电延迟几个小时. |
|
L****a
发帖数: 572 | 24 solar thermal 主要是 utility market, 一般都得建在沙漠这种地方, 离城市
很远. 对于 distributed solar power 来说 PV 是唯一选择. solar thermal
的主要优点是可以把供电延迟几个小时. |
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h*******y
发帖数: 896 | 25 If your background matches this position, please send me your resume
(email needed).
========================
Job Description: Power Electronics Engineer
Job Posting : Feb 4, 2011
Primary Location : US-AZ-Tempe (AZ34)
Job : System Architecture
Scope of Responsibilities inlcude:
* Collaborating with XXXXXX development partners in the design and
development of advanced vehicle drive, battery management and power
conversion systems.
* Designing, building, testing and validating hardware... 阅读全帖 |
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x****g
发帖数: 2000 | 26 flicker和thermal
这都得考虑呀，
每个application不一样，
每个application你算一下thermal和flicker的contribution。
如果某一个dominate，那另一个就不用考虑了...
这，需要论文吗? :) |
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g*********n
发帖数: 808 | 27 GaAs vs. Si from wikipedia
Comparison with silicon
GaAs advantages
Some electronic properties of gallium arsenide are superior to those of
silicon. It has a higher saturated electron velocity and higher electron
mobility, allowing gallium arsenide transistors to function at frequencies
in excess of 250 GHz. Unlike silicon junctions, GaAs devices are relatively
insensitive to heat owing to their wider bandgap. Also, GaAs devices tend to
have less noise than silicon devices, especially at high fre... 阅读全帖 |
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d****6
发帖数: 971 | 28 理论上DSSS信号起到扩频效果，所以即使信号在thermal noise floor以下，乘以PN
code之后还是可以还原成原来的信号的对吧
但是实际上是要用ADC出来的digital信号去乘以PN code。直观上我还是没法理解如果
比thermal noise floor低很多的DSSS信号进入ADC后是怎么影响ADC的zero-crossing的
请问有人能解释一下吗
谢谢 |
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k*******n
发帖数: 17 | 29 最近投了好多家都没有反应，之前说要给phone interview的几家莫名其妙就不联系我
了，都搞不懂怎么回事，现在没法了，只好过来求内推了，求rp了
semiconductor process engineer or product engineer or materials engineer
master阶段主要做的quantum dots合成和optical device，不知道是不是这个原因闹得
有点四不像？
厚着脸皮来求内推。。下面是我的简历摘要，我邮箱y********[email protected]，qq：
339037332，谢谢各位大哥大姐啦。。
SUMMARY
• Hands on electrical engineer with five years research experiences on
semiconductor and materials process, including both quantum dot synthesis
and organic/inorganic semiconductor materials, as well as l... 阅读全帖 |
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m****o
发帖数: 27 | 30 帮朋友转发清华大学博士后机会
Post doctor in Electrical Tomography based Subsea Gas oil water
Multiphase Flow Metering
Graduate School at Shenzhen, Tsinghua University, China
Division of Ocean Science and Technology in Tsinghua University now is
looking for 1 to 2 two years post doctor in research on Electrical
tomography
based subsea gas﹐il﹚ater multiphase flow metering. The working location
will be in Shenzhen campus but frequently travel to Beijing.
http://www.sz.tsinghua.edu.cn/
The major research includ... 阅读全帖 |
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p********6
发帖数: 65 | 31 朋友组里面的职位，Manager 人很好，他们希望能找一个会讲中文的申请者，因为有时
需要跟大陆和台湾的公司打交道。可以直接公司网页申请，或者发信到freewheelin@
gmail.com
Hardware Engineer
Apply Now Apply now
Date: Jul 6, 2015
Location: Santa Clara, CA, US
Hardware Engineer
Location
US- CA, Santa Clara
Req # 26441
Functional Area
Supply Chain Management
Preferred Experience
Senior Level
Preferred Education
Bachelors Degree
Position Summary
Citrix is a leading provider of virtual computing solutions that help people
work and play from anywhere, on a... 阅读全帖 |
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f******8
发帖数: 150 | 32 Under the supervision of VP, Chief Technical Officer, create and validate
large-signal non-linear models for range of RF power transistors. Initially,
models will be GaN but may eventually include LDMOS. The candidate must be
self-motivated and able to work independently with minimal supervision. The
candidate must be able to demonstrate a proven track-record in the
successful development of non-linear models for RF power transistors (
ideally GaN) with good agreement between modeled and measur... 阅读全帖 |
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s****t
发帖数: 31579 | 33 【 以下文字转载自 ME 讨论区,原文如下 】
发信人: submit (开始结 -- 送花管用, 真的), 信区: ME
标 题: 帮忙找几片nanofluid 方面的文章
发信站: Unknown Space - 未名空间 (Wed Feb 16 10:38:29 2005) WWW-POST
多谢. 联系g****[email protected]
· Bhattacharya, P., et al. “Evaluation of the temperature oscillation
technique to calculate thermal conductivity of water and systematic
measurement of the thermal conductivity of aluminum oxide-water nanofluid”,
Proceedings of the 2004 ASME International Mechanical Engineering Congress and
Exposition, Anaheim, California, |
|
h******4
发帖数: 11 | 34 公司名称: Ametek, Inc.
公司的详细情况可查看以下网站
http://www.ametek.com
http://www.ametek.com.cn
职位在上海.
要求有丰富的铸造和模具 (molding and tooling) 经验 (如果有Thermal Set 和
Thermal plastic 材料的铸造经验最好).
深入的了解国内做铸造和模具的厂家
有一定的英语口语交流的能力
铝件浇铸的模具经验是一个 Plus.
金属片冲压的模具经验是另一个 Plus
希望本职位能够根据设计开发工程师的部件设想/设计, 提供模具的设计方案和浇铸或
压铸方案. 并负责联系国内模具设计和铸件加工的厂家. 帮助这些厂家设计和制造模具
. 最终使铸造出的产品达到设计要求 (实现新部件的制造加工). 本职位需要在国内出
差, 还需要出差到新家坡, 马来西亚等地.待遇根据工作经验和能力面谈.
由于本职位不但要求 Tooling 经验, 还要求对国内相关厂家的了解, 可能只有在过国
内才能找到. 如果您有同学或朋友在干这一行的, 请转告. 谢谢. |
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d*a
发帖数: 1863 | 35 thermal couple可以入水
你如果了解它的工作原理就明白了 因为他不是利用电阻变化
NI有一个usb的data acquisition设备，可以记录thermal couple的温度 大概100多块
钱 |
|
x*o
发帖数: 1037 | 36 I just read a paper about drug delivery using polymer,
quite interesting.
They used thermally responsive polymers and local hyperthermia to target drug.
Pretty fancy idea :)//Don't hammer me, Wonderlich
The idea is: heat the tumor up and the thermally responsive polymer will
precipitate in the heated area. So, just attach the drug to the polymer and
drug will concentrate on that area.
Well, the authors did some experiment in vivo which is pretty cool.
But they didn't use real drug, instead, they |
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a***n
发帖数: 578 | 37 //haha
Then I have to say that you are below average in your area. I went to his
senimor and talked with him. I did thermal conductivity research as well.
The previous introduction is gotten from website.
He actually did a lot of works including tiny temperature measure devices. Do
research by your own. I am not interested at measurement. But he is the first
one who measured thermal transport mode through single wall carbon nanotube.
By the way, you are not worth for me to create a story to chea |
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r**x
发帖数: 42 | 38 http://spot.colorado.edu/~yangr/open.html
The Nanoscale and Ultrafast Thermal Sciences and Applications lab (NUTS)
in the Department of Mechanical Engineering at the University of Colorado at
Boulder, directed by Professor Ronggui Yang, is recruiting immediately 2-3
Ph.D students and/or post-doc research associates on the following specific
areas:
1). Co-polymer templates for nanofabrication.
2). Thermal characterization of nanostructures.
The positions need to b |
|
e*********e
发帖数: 303 | 39 Many thanks.
Preparation, isolation and evaluation of novel N-acyltrialkylammonium salts
as initiators for free radical polymerization of methacrylates under
photochemical, thermal and accelerant promoted thermal conditions. Polymer
Preprints (2007), 48(2), 280-281. |
|
O***p
发帖数: 1333 | 40 I got the following error when running a thermal analysis,
***ERROR: AT LEAST ONE OF DEGREES OF FREEDOM 1 THRU 6 OR 8 MUST BE ACTIVE IN
THE MODEL FOR THIS PROCEDURE TYPE. CHECK THE PROCEDURE AND ELEMENT
TYPES USED IN THIS MODEL.
What's the problem and how should I fix it?
Or if you know any good Patran Toturial on thermal analysis, that will be a
great help to me too! |
|
h******4
发帖数: 11 | 41 公司名称: Ametek, Inc.
公司的详细情况可查看以下网站
http://www.ametek.com
http://www.ametek.com.cn
职位在上海.
要求有丰富的铸造和模具 (molding and tooling) 经验 (如果有Thermal Set 和
Thermal plastic 材料的铸造经验最好).
深入的了解国内做铸造和模具的厂家
有一定的英语口语交流的能力
铝件浇铸的模具经验是一个 Plus.
金属片冲压的模具经验是另一个 Plus
希望本职位能够根据设计开发工程师的部件设想/设计, 提供模具的设计方案和浇铸或
压铸方案. 并负责联系国内模具设计和铸件加工的厂家. 帮助这些厂家设计和制造模具
. 最终使铸造出的产品达到设计要求 (实现新部件的制造加工). 本职位需要在国内出
差, 还需要出差到新家坡, 马来西亚等地.待遇根据工作经验和能力面谈.
由于本职位不但要求 Tooling 经验, 还要求对国内相关厂家的了解, 可能只有在过国
内才能找到. 如果您有同学或朋友在干这一行的, 请转告. 谢谢. |
|
c**y
发帖数: 1 | 42 Research Fellow (Postdoc) Position in
Evaporative Spray Cooling for Thermal Management of
High Power devices
We have research position for Post Doctorate Research Fellow appointment in
the area of Evaporative spray cooling for thermal management of high power
devices. We aim to invite the best talents to join our dynamic research team.
Project nature:
The focus of the research (numerical modeling & experimental investigation)
will be to understand the key processes in evaporative spray cooling, |
|
y****g
发帖数: 111 | 43 There are quite a few openings posted recently. Please apply through
Qualcomm web site.
Need knowledge on Solid mechanics + ABAQUS + package assembly process
#: G1844121
Job Title Thermal/Mechanical IC Engineer
Post Date 10/8/2009
Division QCT
Job Area Engineering - Hardware
Location California - San Diego
Job Description The candidate will contribute to the development and
implementation of solutions for managing thermal and mechanical challenges
in leading edge SoC/SiP IC products, including |
|
s*******s
发帖数: 414 | 44 很好的经验总结，受教了
请问做thermal management的建模和控制，需要学习哪方面的控制的知识，能否给推荐
点书籍或者文献。我和你正好相反，我是ME的，学了很多传热，流体的知识，但控制方
面一窍不通。现在phd课题也要做一些thermal management的东西，不知道怎么上手。
project
了。 |
|
s*******s
发帖数: 414 | 45 很好的经验总结，受教了
请问做thermal management的建模和控制，需要学习哪方面的控制的知识，能否给推荐
点书籍或者文献。我和你正好相反，我是ME的，学了很多传热，流体的知识，但控制方
面一窍不通。现在phd课题也要做一些thermal management的东西，不知道怎么上手。
project
了。 |
|
d*********t
发帖数: 25 | 46 A leading Fortune 100 manufacturing company is looking for a R&D Mechanical
Engineering. Based in our Torrance, CA office, this position will provide a
high visibility and exciting opportunity to work on turbocharger component
life prediction methodology projects. This position will be responsible for
advancing existing lifing methods and help reduce wheel development cycle
time.
Responsibilities will include:
• Develop calibrated life prediction systems for turbocharger rotating
component... 阅读全帖 |
|
t**********6
发帖数: 565 | 47 前段时间在弯曲(San Francisco) 附近找工作，自己也整理了一些找机械背景的公司。
现在尘埃落定，跟大家分享一下，希望起到帮助。题目起的，是吸引眼球，我承认。。。
斑竹，也看着给个包子：）
也欢迎大家添砖加瓦，完善这个列表。
弯曲总体上自然是马公的天下，但是仔细找找，机械工作的机会并不比别的区域少。当
然，传统的机械公司不多，主要集中在消费电子业，半导体，医疗器械，新能源等领域
。下面这个表是我自己整理的，如有疏忽之处，大家也多提意见。
Consumer Electronics (including electronics component supplier)
1. Apple
2. Nest
3. Amazon Lab126 – Kindle Fire
4. GoPro – Camera mounting Company.
5. Dell, San Jose, CA
6. HP
7. Logitech
8. Sandisk
9. Western Digital – Date Storage, FEA
10. In... 阅读全帖 |
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t**********6
发帖数: 565 | 48 前段时间在弯曲(San Francisco) 附近找工作，自己也整理了一些找机械背景的公司。
现在尘埃落定，跟大家分享一下，希望起到帮助。题目起的，是吸引眼球，我承认。。。
斑竹，也看着给个包子：）
也欢迎大家添砖加瓦，完善这个列表。
弯曲总体上自然是马公的天下，但是仔细找找，机械工作的机会并不比别的区域少。当
然，传统的机械公司不多，主要集中在消费电子业，半导体，医疗器械，新能源等领域
。下面这个表是我自己整理的，如有疏忽之处，大家也多提意见。
Consumer Electronics (including electronics component supplier)
1. Apple
2. Nest(part of Google) + Google
3. Amazon Lab126 – Kindle Fire
4. GoPro – Camera mounting Company.
5. Dell, San Jose, CA
6. HP
7. Logitech
8. Sandisk
9. Western Digital – Da... 阅读全帖 |
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发帖数: 29 | 49 去做MFG or NPI 亏料， 建议还是做FEA 或者做thermal 等类似的。
thermal |
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