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Blog Details for "Conference Room 4 (CR4)"
Conference Room 4 (CR4)Conference Room 4 (CR4)Conference Room 4 (CR4) is a forum for engineers, scientists and technical researchers to discuss engineering news, seek technical help and get answers to burning questions. Articles
Opinions Related to PAYPAL
2012-02-13 19:50:00 Hi to all members: I want to buy some products (at dealextreme.com) and I am considering using the services of Paypal. Is it safe this service? Anyone have any experience in using it? Thanks in advance Gabriel
Fence Posts and Guardrail Embedded In Concrete
2012-02-13 19:49:00 I have a 20ft tall fence installed with the sch 40 pipe post embedded in concrete. The Concrete is significantly understrength. I don't think ACI 318 Appendix D is appropriate to this kind of installation because of the prying action. Does anyone know a good design guide for installations of struct More About: Posts
UV Bottle Cap Promises Dead Bacteria On The Go
2012-02-13 19:46:00 From DVICE: When you are planning to put in some serious time on the trail, the goal is to pack light. There is nothing more annoying than having a bunch of fiddly gadgets for everything. That's why integrating the purifier - in this case a UV bulb - into the lid of your water bottle is More About: Promises
Butterfly Wings Inspire Better Temperature Sensors
2012-02-13 19:44:00 From Discovery News - Top Stories: A coating of carbon nanotubes simplifies the design of these otherwise complicated sensors. Read the whole article
First Nuclear Reactor Approved In U.S. Since 1978
2012-02-13 19:35:00 From CNET News: But no nuclear renaissance appears to be imminent, despite the go-ahead to build and operate two new reactors in Georgia. Read the whole article
The Machines That Made The Jet Age
2012-02-13 19:34:00 From Boing Boing: Germany, June 1945. The Nazi regime has been toppled; the war in Europe is over. But the Allied victory is largely the result of sheer overwhelming force, not technological superiority and the victors know it. Most glaringly, while the Allies still rely on propeller-dri More About: Made
Ground Engaging Equipment
2012-02-13 19:27:00 I live in rural Florida and have a tractor to maintain my property. In my endless attempts to be self reliant, I want to plant a 1/4 acre food plot this year. I grew up on a farm where we grew everything we ate so I have the know how to plant, care for, can, etc. My tractor has a 3 point hitch and
Diode
2012-02-13 18:12:00 dear engineers please anybody can help me to get datasheet of U1J 623 smd diode i searched in many sites but i didnt get the result. thanking you
FDA Approves The Treatment Of Tumors With Electrical Fields
2012-02-13 17:44:00 Gizmag.com today reports that the FDA has approved the treatment of brain tumors with electrical fields. Novocure is the company who invented this and is selling the equipment. It does not require hospitalization, and allows the patient to be treated while being fully active. Glioblastoma is targete
EMPATH 2000 Results Analysis
2012-02-13 17:32:00 Dear All.... Greetings for the day.... I wanted to know about the Motor current signature analysis,when i am searching the details i had come across AREVA 's EMPATH 2000 for condition monitoring of electric motors based on its load current analysis. Anybody used this instrument....pls provide hoe
US Machine To Work On British 3 Phase
2012-02-13 17:24:00 Hi, We are looking to buying a used machine from the States. It uses 460v 3 phase. Does anyone know if it will work on our 415v 3 phase ok. There is a motor inverter at about 33 amps and a few contactors. If not, then I will need a transformer. Will the frequency difference cause any problems? Tha
Neutralising Africa's 'Exploding Lake'
2012-02-13 17:17:00 From BBC News - Science & Environment: More than 1,000 people died in 1986 when a lake in Cameroon released a cloud of CO2 that suffocated entire villages. A much larger lake in Rwanda - with two million people living nearby - is also at risk of eruption, but plans are afoot to make it s More About: Africa
MATHLAB
2012-02-13 15:24:00 Hello all, hopefully some of you can provide me some valuable information regarding MATHLAB. First off, I know virtually zip about this software and its capabilities. I want to begin playing with this, especially in regard to structural analysis and design (mainly FEM), as well as modeling hydrauli
MATLAB
2012-02-13 15:24:00 Hello all, hopefully some of you can provide me some valuable information regarding MATHLAB. First off, I know virtually zip about this software and its capabilities. I want to begin playing with this, especially in regard to structural analysis and design (mainly FEM), as well as modeling hydrauli
Learn TIG with HTP
2012-02-13 15:00:00 If you're interested in learning the fundamentals of Tungsten Inert Gas welding, HTP America is now hosting hands-on classes covering the basics of TIG at its Illinois headquarters. The TIG classes will address steel and aluminum welding, TIG torch basics, filler material, and many little-known tr
The Pool Table That Levels Itself In Rough Seas
2012-02-13 14:39:00 From Crave: gorgeous gadgets and other crushworthy stuff. - CNET: Some things don't make sense. At least to one's eyes.So when I saw the YouTube video I've embedded, I wondered whether it could possibly be real. Yet this purports to be a pool table on a cruise ship in rough water. R More About: Pool , Table
Carrier Shift
2012-02-13 14:36:00 I have completed B.E/ELECTRONICS AND INSTRUMENTATON.I have two years experience in service.I want to move to R&D.How can i do that?Should i do any additional course?
Antipirates Attacked For Pirating NFL Game
2012-02-13 14:35:00 From CNET News: The Web fulminates when it is revealed that executives from VEVO--vehement music industry antipirates--played a pirated stream of an NFL playoff game at a party. VEVO claims it left its Wi-Fi unsupervised. Have we heard that argument before? Read the whole article
Europe Takes To Streets Over Acta
2012-02-13 14:22:00 From BBC News - Technology: Thousands of people have taken part in co-ordinated protests across Europe in opposition to a controversial anti-piracy agreement. Read the whole article
Fiber Optic Cable
2012-02-13 14:07:00 Hi all, currently have ongoing project in Pakistan, we are running fiber optic cable in The electrical cable ladder, the electrical cable ladder have existing 22kv power cable please advise any interferance if the fiber optic cable lay. In the said ladder. Regard Mohd
Undervoltage Light Comes On
2012-02-13 13:29:00 I am working with a QAS38yds Atlas Copco generator, It runs for 17seconds then shuts down and undervoltage light comes on. Any help would be great.
Hydraulic Calculation: Water Storage Tank
2012-02-13 13:09:00 Dear Friends, I am preparing Technical report on water storage tanks. But I am also required to add hydraulic calculations. Since this is totally new concept for me, can anybody help me for this with references or sample? Regards ASP
Auto transformer
2012-02-13 10:35:00 Y auto transformers are not used in transmission and distribution... apart from the cost any problem we can face... if v used in T and D.
application
2012-02-13 09:49:00 example-induction generator output power=1.5 megawatt, voltage=575V, frequency = 60 hz, power factor= 0.9, i want to determine reactive power compensation for induction generator in VAR? how can we determine this? through which formula?
Reactive Power Compensation
2012-02-13 09:49:00 example-induction generator output power=1.5 megawatt, voltage=575V, frequency = 60 hz, power factor= 0.9, i want to determine reactive power compensation for induction generator in VAR? how can we determine this? through which formula? More About: Power
Breath Analysis For Disease Detection
2012-02-13 06:00:00 You may be breathing into a breathalyzer at your next checkup. The new "breathalyzer" technology is an advance in disease diagnosis. The technique is currently under development at the University of Wisconsin-Madison. It's a simple but very sensitive method used to distinguish normal and disease More About: Disease , Detection
SAFETY VALVE POPUP
2012-02-13 05:43:00 A safety valve of boiler is set to popup on 600 psig in case of steam . In case boiler is bank / unfired and drum is full of water , water pressure of boiler drum is being raised to 500 psig . can safety valve popup or pass on or above 400 psig of water pressure. is there any reason of water hammer More About: Safety
optocoupler
2012-02-13 05:42:00 hi everyone. i've managed to get my TL494 (PWM controller) working giving me wide ranges of frequency and duty cycle. But i'm having problem with the next part. connecting it to the optocoupler. i'm using HCPL3140 http://parts.digikey.com/1/parts/501798-o ptocoupler-igbt-drive-0-4a-8dip-hcpl-3140 -0
Optocoupler Question
More articles from this author:2012-02-13 05:42:00 Hi everyone. I've managed to get my TL494 (PWM controller) working giving me wide ranges of frequency and duty cycle. But I'm having problem with the next part: Connecting it to the optocoupler. I'm using HCPL3140 http://parts.digikey.com/1/parts/501798-o ptocoupler-igbt-drive-0-4a-8dip-hcpl-3140 -0 More About: Question 1, 2, 3, 4, 5, 6, 7 |
