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Various questions regarding piezoelectric crystals

1. Can anyone please tell me what is the difference between the logitudinal mode, radial mode and thickness mode of vib...
0 comments posted 23yrs
posted by lbbtx2002
0 comments posted 23yrs posted by lbbtx2002

shape memory composite help

July 7,2003 Subject: Request for a PhD Project Dear Prof. I am working on my PhD in Khajeh Nasir University of Tehran....
1 comments posted 23yrs
posted by multipeditalist
1 comments posted 23yrs posted by multipeditalist

Metals in cooking appliances

Hello, I'm looking for examples of metals used to construct cooking appliances: 1. What kind of metal is used to design...
3 comments posted 23yrs
posted by hughes.patans
3 comments posted 23yrs posted by hughes.patans

Urethane outgassing

I am encapsulating LED circuitry in a PVC tube using a two-part, optically clear urethane adhesive. I am having a probl...
4 comments posted 23yrs
posted by jfranke
4 comments posted 23yrs posted by jfranke

glass manufacturing - terminology survey

I am working on my thesis on the terminology of glass manufacturing, languages concerned being German, English and Fren...
3 comments posted 23yrs
posted by avdic
3 comments posted 23yrs posted by avdic

tetracalcium phosphate

Could anyone tell me something about tetracalcium phosphate ? Does it play an important role in calcium phosphate cement...
0 comments posted 23yrs
posted by thieutriet
0 comments posted 23yrs posted by thieutriet

commercial source for ITO coated glass

Hi, We need some ITO coated glass substrates with high visible-light transmission. Does anyone know a commercial source...
1 comments posted 23yrs
posted by monzonite2004
1 comments posted 23yrs posted by monzonite2004

Selective etch for InGaAs/InGaAsP

Anyone know of an etch for InGaAs and InGaAsP that stops on InP, and gives a non-re-entrant profile for a circular mesa?...
0 comments posted 23yrs
posted by tansen1
0 comments posted 23yrs posted by tansen1

Re: How tough is wood?

> Apologies if this is not the proper NG for this question. > > Here in Australia we use our 4WDs in a lot of offroad >...
0 comments posted 23yrs
posted by gcrume
0 comments posted 23yrs posted by gcrume

equivalent Young's modulus

Hello, Maybe someone could help me to calculate the equivalent Young's modulus of a non-rigid material with very hard i...
1 comments posted 23yrs
posted by zia54
1 comments posted 23yrs posted by zia54

Materials polarity modification

Does anyone knows if there is a group of materials that change their polarity with an external energy field such as: la...
3 comments posted 23yrs
posted by ofer.thaler
3 comments posted 23yrs posted by ofer.thaler

materials polar/nonpolar transformation

Does anyone knows if there is a group of materials that change their polarity with an external energy field such as: la...
0 comments posted 23yrs
posted by ofer.thaler
0 comments posted 23yrs posted by ofer.thaler