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control loop

What is a control loop? How does a control valve in a control loop affect its transmitter in a control loop when both ar...
3 comments posted 21yrs
posted by jee_heng
3 comments posted 21yrs posted by jee_heng

Jacks Ball, but not quite.

We are looking for a supply of a 0.680" diameter foam ball. Like the little red rubber ball that came with a Jacks set...
1 comments posted 21yrs
posted by kthr33
1 comments posted 21yrs posted by kthr33

finite element lecture notes

I'll teach a course on finite elements and applications to engineering problems in general next semester, and looking fo...
0 comments posted 21yrs
posted by okyar
0 comments posted 21yrs posted by okyar

Syntactic Foam

Recently we began searching for a source of Syntactic Foam rod stock for a production requirement. So far we have Googl...
6 comments posted 21yrs
posted by kthr33
6 comments posted 21yrs posted by kthr33

laws for engineers us/canada?

I'm thinking of moving to Vancouver BC area shortly after I graduate and take the FE. Are there restrictions or a lack...
3 comments posted 21yrs
posted by wallacek
3 comments posted 21yrs posted by wallacek

search: air compressor, high pressure, 12V

x-post and F'up to sci.mech.fluids Hi, I need to solve the following problem: I have a closed container of 1 liter air...
0 comments posted 21yrs
posted by berger
0 comments posted 21yrs posted by berger

search: high pressure seawater pump

x-post and f'up to sci.mech.fluids Hi, I am looking for a pump which should be able to feed between 10 and 100 liters s...
0 comments posted 21yrs
posted by berger
0 comments posted 21yrs posted by berger

demande d'aide pour patran

salut tout le monde je suis nouveau en patran/nastran et je cherche de la documentation sur ce code pour apprendre a l'u...
3 comments posted 21yrs
posted by rachidos81
3 comments posted 21yrs posted by rachidos81

How Did Cam Shafts Survive Computer Controls?

One of the first things I'd eliminate would be cam shafts, especially when you consider the timing advantages of compute...
38 comments posted 21yrs
posted by bretcahill
38 comments posted 21yrs posted by bretcahill

String vibration calculation under water

If a string, like a guitar string, vibrates at 5khz in air, what would the frequency be under water? How to calculate? t...
17 comments posted 21yrs
posted by tonyjeffs
17 comments posted 21yrs posted by tonyjeffs

Bends in Square Tubing

Currently we have a production project that requires bending 3/4" square tubing. Each assembly requires 24 pieces of tu...
4 comments posted 21yrs
posted by kthr33
4 comments posted 21yrs posted by kthr33

Two Engine Hybrids

One big complaint about hybrids is they often don't have enough power. Has anyone done anything with 2 engine designs?...
6 comments posted 21yrs
posted by bretcahill
6 comments posted 21yrs posted by bretcahill

Data on 1 x 1 steel tube

Where can I get data (weight/ft, I, etc) on 1" x 1" square tube? I can find lots of data on 3" x 3" but not smaller.
5 comments posted 22yrs
posted by ecarecar
5 comments posted 22yrs posted by ecarecar