Tuesday, 10 January 2012

cr4 23-12-2011


(If you are using Outlook 2007, we recommend viewing this email in a web browser to experience full functionality.)
CR4Daily DigestPowered By GlobalSpec
CR4 - The Engineer's Place for News and DiscussionLoginRegister
 Recent Questions & Answers 
Reline or Replace Galvanized Drain & Cold Water Lines
By JoeCosta in Mechanical Engineering

Doing due diligence study on a 60 year old apartment building with galvanized cold water lines and drain lines. The hot water lines have already been replaced with copper 10-12 years ago. Numerous pin hole leaks on cold and rusty water. On going issues with slow drain lines. Looking for general con ...more

Generator and Capacitor
By newimagerudy in Electrical Engineering

I want to know if there is a capacitor that I can put in line with a 25kw diesel generator? Will this help my generator run smother when at full load? Or do I need a battery bank and a inverter to make this idea work? Generators make a lot of electricity but can't handle big surges in load because t ... more

Earth Continuity Query
By Chook in Electrical Engineering

Dear learned gentlemen, and others, query about odd test results. The installation is a 50KVA 3 phase DG feeding a distribution board which is the MEN point. From the DB feeds run out 150 to 200 metres to 5 different sub boards by way of 3 core and earth (no neutral), and the sub boards then feed m ... more

ETAP Single Phase Load
By muhassann in Electrical Engineering

Hi, I am carrying out a distribution system analysis on ETAP. While trying to connect a single phase load, ETAP recognizes the load as single phase but the current drawn in overhead lines is distributed on all phases. Example, I connect a single load on Phase A which draws 30 Amps, but the tran ... more

Concussion Injuries
By Anonymous Poster in New Technologies & Research

So we were playing in our lab and came up with a design of a healing ring it runs off Neo magnets and works well. Test have proved that we can repair and heal bruises and strains sore backs as well as mould infections and concussion injuries. I was previe to see a study in a AMA directive and it sho ... more

Where do I Find Paddle Designs for Pin Homogenizers?
By Anonymous Poster in Mechanical Engineering

I want to mix metal pins in a cylinder mounted at approximately 45 degrees off vertical, and have them to mix to homogeneity by rotating the cylinder. The reason for the angle is that gravity will return the pins to the top level of the mass of pins in the chamber, while the paddles will bring them ... more

Steel Beam Deflection with Same Equipment after Refurbishment
By BLC in Mechanical Engineering

Hi We have a steel structure that was refurbushed (derusted & painted) two years back. The equipment on top of it was removed and placed back - the same equipment in the same position. After two years the outer beam with the most load (note, the same equipment, same position) deflects at this s ...more

 New Blog Entries^ Back To Top
Microsoft, Intel, and Bidding for the $50B Bill
posted in Left2MyOwnDevices

There's a lot of speculation that Microsoft and Intel didn't see and haven't responded to the mobile device revolution fast enough. In the last few days, Intel has merged several biz units into a new mobile and communications group, and Microsoft replaced the head of their Windows Phone unit. It's a ...more

Five Reasons Why Cold Drawing Is Essentially Unlubricated
posted in Speaking of Precision

Yes we flood oil and sometimes put a film of lime or borax on our steel hot roll, but the fact is that our cold drawing process is essentially "unlubricated." The film between the die and the rod is probably less than three or four molecules thick... Here are five attributes of Dry Friction ... more

Gettin’ Into the Season With a Hubcap Tree
posted in Hemmings Motor News Blog

Have you ever seen a hubcap tree? One of our advertisers, Champion Auto Sales in Arundel, Maine, sent over these photos of a unique and innovative way of celebrating the holidays. They're placing it out front as we speak, so you can see it in person if you're anywhere close to them, but we thought t ...more

Caption This for 12/23/11
posted in Caption This!

This week's image: Be sure to vote for your favorite caption!

 Latest Topics of Discussion^ Back To Top
Are You Smarter Than A School Board Member?
By kramarat in Education

http://www.washingtonpost.com/blogs/answer-sheet/post/when-an-adult-took-standardized-tests-forced-on-kids/2011/12/05/gIQApTDuUO_blog.html I took both quizzes. Passed all of the reading questions. Missed 2 on the math.

Wind Load Calculation in PVElite
By yhinganetone in Mechanical Engineering

Dear Sirs, I have a problem in PVELite with regards to Wind Load Calculation about the wind Diameter in the table on how it is arrive the value. My client is asking also to provide the detail calculation for this. Id tried to analyze and calculate on my self but i cannot derive the correct valu ... more

 Engineering News^ Back To Top


Stay Informed^ Back To Top
 Product Alerts
Receive email updates on new products and suppliers

 Newsletter Subscriptions
Your source for technology news and industry information - view past issues

 Download the Engineering Toolbar - It's Free!
The Engineering Toolbar - The Ultimate Resource for Engineering and Technical Research. Learn More

 Product Announcements
New and featured products from manufacturers and suppliers

 Events
NEW: Online, interactive conferences / trade shows featuring latest news and industry trend
Call for Speakers submit your proposal

Tools & Links^ Back To Top
Build an original machine to launch a rocket
Flex your physics muscles - Take the TREB Challenge!
Directory of Companies on GlobalSpec
Engineering & Scientific Links
Technical Articles
Video Library

No comments:

Post a Comment