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Materials & Chemical Engineering

- Properties of matter and its applications. Metal Production, Fabrication, Distillation, Corrosion
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Illegal/Dangerous Activities: Explicit "how to" discussions of illegal and/or dangerous activities, or posts...
Jul31-07 05:01 PM
chemisttree
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Is there a website or book that lists hardness values for the following: Polycrystalline Boron Nitride Molybdenum...
Nov4-09 09:56 PM
Mapes
1 1,408
does anyone have any knowledge on fire modelling?
Oct14-05 02:38 AM
PerennialII
3 1,738
I two firebricks, one is wrapped with 4 layers of aluminum foil and the other one is not. If both are placed 10 "...
Oct14-12 04:21 PM
AlephZero
10 1,738
Good days, normal or basic complete reaction might happen in open air firing inside the furnace might be describe...
Jan23-13 10:51 AM
mfb
1 1,087
can somebody explain to me in general first pass retention in paper making... As i know they usually using alum or...
May3-13 03:19 AM
piuz98
0 1,188
Hi, What are good first texts in mass and heat transfer, material and energy balances, fluid mechanics and...
Nov7-08 08:40 AM
Mapes
1 4,196
I would like to know if it is possible to make a hook that would be transparent. I think this would be attractive to...
Jun7-07 10:30 PM
Danger
2 1,483
Hello, I am a physics student and I am trying to set up a microscale chemical experiment that involves Sulfuric Acid,...
Jun15-12 10:32 PM
kthouz
0 1,019
Hi, I have a DC motor that have these dimensions: http://www.micromotorssrl.com/motor_l149/L149.pdf and the problem...
May18-10 09:23 AM
wolram
5 2,405
Hi, I am trying to fit a prony series to set of data(modulus and time). I want to use curve fitting to fit the...
Mar27-10 09:25 PM
hotvette
1 5,097
Hello I am working with fluorescence correlation spectroscopy. I want to fit the correlation function on Igor pro....
Apr17-14 04:43 AM
Ajo
0 236
Air is compressed to 10 atmospheres, cooled to 25 degrees C and passed through a bed of molecular sieve that has an...
Jun6-08 09:05 AM
hedenqvist
1 5,696
Hi guys, I've been on a few message boards looking for a solution to my problem, but no one has really been able to...
Oct16-07 06:53 PM
Astronuc
1 13,487
I was wondering what equiptment would be best suited to using multiple strian gauges on specific points on a flat...
Jan24-10 11:27 AM
MalliCk
1 3,260
anyone have idea about this industry?
Aug9-08 10:37 AM
polymer
1 2,606
Can anyone help me solve this problem? Im unsure on what to do http://yfrog.com/j5flicks2ndp
Nov2-09 07:10 PM
Mapes
3 1,933
Hey, Im currently doing a project where I have to calculate/(predict) the cv values of a number of valves. at the...
Oct15-12 03:06 AM
brightonk
0 1,073
Hi All: I am trying to calculate volumetris flow rate in a semi circular pipe with a fixed pressure but seem to...
Apr20-09 10:08 AM
piyushmor
3 3,635
Does anyone know of any really good resources on high turbulant flow/velocity induced vibration in piping systems (in...
Mar18-09 06:09 PM
rppearso
0 3,666
hello all, i am from electrical background and for a project i need to analyse the flow of oil through a hollow...
Feb5-10 12:34 PM
origen87
18 4,306
Urine flow meters are used to diagnose urinary flow obstructions such as might occur in the even of enlargement of the...
Oct10-12 07:51 PM
TsuinRyu
6 3,960
Dear all, I am trying to solve a simple model with Comsol to find the pressure drop in a rectangular channel W=5mm,...
Nov4-09 10:27 AM
baranii2000
0 5,655
Hi Everyone, My problem states "Derive a Force Balance equation using Momentum Correction factor for a pipe in...
May12-09 12:42 AM
slashragnarok
0 2,987
QUESTION Rainwater collects behind the concrete retaining wall shown in the figure. If the water saturated soil...
Dec23-12 11:34 AM
Studiot
1 1,418
Do any on of you know any fluxing agent used for low temprature sintering in ANTI FERFOELECTRIC MATERAIL I.E LEAD...
Nov21-08 07:55 AM
Aqib Khan
0 1,622
Hi, I was wondering if anyone here has any good suggestions for foam insulation for high altitude balloons. We're...
Jan27-10 06:52 PM
Dan Solvin
4 2,182
HI I want to heat treat my samples (dimensions: 4:4:2 mm3) at about 600 C, for different times from 30 min to 3...
May1-11 10:59 PM
edgepflow
1 1,617
From a materials science perspective, what is the point to folded steel? How does the folding process affect the...
Aug7-07 01:06 PM
mgb_phys
9 34,955
I wasn't sure where to post my question, but its for my materials selection course... (please forgive me if I posted...
Jan27-08 04:01 PM
rdt2
5 5,744
Hello, I just registered to these forums but already visited this place for a while. I have a question that fits...
Jul31-05 03:59 PM
PerennialII
3 10,378
Area under stress strain curve is known as toughness. Does it represent impact toughness or fracture toughness? Is...
Apr14-12 04:29 PM
MalliCk
4 1,853
Our project is about manufacturing formalin & Distillation column is there to design. We have methanol(unreacted);...
Sep24-10 12:53 PM
sorter
0 3,455
I'm currently writing a computer simulation (in Java) of the formation of a helix from a spinning thread. The analogy...
Apr1-09 10:11 AM
Mammo
2 1,484
Hello everybody I have tried to obtain but I have not been successful the dielectric strength or breakdown voltage...
Sep9-06 08:54 PM
norbert
0 1,995
I need to determine the minimum wall thickness for 1018 CRS for a knife blade. I know the moment, max deflection,...
Jul27-07 06:29 AM
es_shoes
2 10,531
Is there a formula relating the free resonating frequency of a cantilever to its deflection? Thanks!
Aug26-07 11:43 PM
Gokul43201
1 11,190
I am looking formula to calculate pressure drop in a liquid pipe and to determine a suitable diameter of pipe to use...
Jan23-09 09:52 AM
nvskrish
4 16,582
Hi all I read that Si grows only by twinning. I wanted to know why Si grows only by twinning? and in such a case,...
Nov28-11 08:05 AM
pukb
0 1,003
I just learn the finite element theory, now I have one problem, I want to calculate the four-node effective strain...
Sep16-11 06:48 AM
hongfengtl
0 1,622
I am trying to determine the critical crack length of a part using finite element analysis. The software I am using...
Apr25-08 12:17 PM
UnteljentEnginyr
2 14,281

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