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Triboelectric amplifiers

I recently asked on sci.physics.research about the principle of triboelectric amplifiers, a topic ignored in modern tex...
3 comments posted 20yrs
posted by iandmac
3 comments posted 20yrs posted by iandmac

DMA question/ have you ever seen that?!?!

Dear all, I conducted a DMA run on a polymer and the storage modulus (E') showed a sharp increase right before the Tg o...
12 comments posted 20yrs
posted by tzabal
12 comments posted 20yrs posted by tzabal

weakly conducting materials?

In connection with a prototype design I'm developing for a meteorological measurement device, I'm looking for a readily...
0 comments posted 20yrs
posted by gpetty
0 comments posted 20yrs posted by gpetty

How to selectively dissolve MgO

Hello all, I have some metallic particle (Fe) deposited on MgO substrate. Now I want to remove the thick MgO substrate...
1 comments posted 20yrs
posted by luyang.han
1 comments posted 20yrs posted by luyang.han

"memory" effects in a spinning rotor

http://www.oswirus.krakow.pl/cat_14/gyroscope/ A symmetric harnessed gyroscope accelerated to a given spinning frequenc...
7 comments posted 20yrs
posted by top9
7 comments posted 20yrs posted by top9

Dispersion Al2O3 Nanoparticles

Hi, Someone knows any method to disperse Al2O3 nanoparticles (or nanotubes) in polymeric matriz? And which is the apropr...
4 comments posted 20yrs
posted by jusalesbh
4 comments posted 20yrs posted by jusalesbh

"Liquid metal" castable alloy.

I am wondering if anyone knows of any *real* qualitative aor quantitative characteristics for the www.liquidmetal.com r...
4 comments posted 20yrs
posted by carlossus
4 comments posted 20yrs posted by carlossus

Pressure/ friction welding of two metals

I am working on some soft metal thin film and wire, i.e. gold wire bonding to gold thin film. We all know that when two...
0 comments posted 20yrs
posted by ngarchun
0 comments posted 20yrs posted by ngarchun

Crystallography Open Database update

The COD just attained 40.000 entries this month (CIFs) http://www.crystallography.net/The growth continues by 3000 new...
0 comments posted 20yrs
posted by alb
0 comments posted 20yrs posted by alb

stress-strain

In doing a simple tensile test on a metal-polymer sandwich material, the stress-strain curve appears to have 2 elastic...
0 comments posted 20yrs
posted by eazap1
0 comments posted 20yrs posted by eazap1

turbo pump rebuild

Hi All, Has anybody had experience with the various turbo pump rebuild services that are out there? We're looking at it...
0 comments posted 20yrs
posted by jzante
0 comments posted 20yrs posted by jzante

how to increase hardness

if we have CAST IRON sample of BHN 150 , how do we decide amount of carbon that should be added to it to make the BHN of...
5 comments posted 20yrs
posted by jas_nitj
5 comments posted 20yrs posted by jas_nitj

Fusing plastic to metal

Hi guys: I have an application where I am gluing thick sheets of conductive UHMW plastic to a sheet of stainless steel....
1 comments posted 20yrs
posted by eromlignod
1 comments posted 20yrs posted by eromlignod

Over Moulding Delrin Rubber

I need to over mould Dupont Delrin with any type of rubber. Is it possible?
0 comments posted 20yrs
posted by cri125
0 comments posted 20yrs posted by cri125