How did water form in the universe?

After the bigbang, universe started expanding. It is continuing like that. What chemical reaction prompted to make water and how did it spread in the universe? What happened that water came to the...

02 March 2016 8,196 0 View

How does microwave radiation interact with ferrite material in a sintering process?

Sintering is carried out for ferrite materials in microwaves. I want to know the physical interaction between the molecule of the ferrite (magnetic oxide) and the microwave so that I could adjust...

11 December 2014 6,056 8 View

What are excahnge and correlation effects?

While calculating the binding energies in metallic systems, we take into account the exchange and correlation effects. Basic understanding of these effects is necessary for exact calculations.

11 December 2014 4,286 2 View

How does thermal resistivity arise in non-crystalline insulators?

Is it something to do with phonons?

11 December 2014 8,279 2 View

What are the modern uses of X-ray diffractometer?

X-ray diffractometer was used to identify phases in alloys and to study the crystal structure of minerals. Is this still a useful tool when studying new materials like nanoparticles on surfaces?

10 November 2013 3,880 2 View

What makes diluted magnetic semiconductors so important?

Diluted magnetic semiconductors are widely studied materials. They will be used in future electronic devices. But I want to know what makes them so important. Are they cheap, easy to be fabricated...

08 September 2013 3,176 3 View

How can one measure the dielectric response of metallic materials?

To give an idea about the dielectric properties of metals, an experimental setup must be there for students. I am looking for an easy and cheaper set up to be installed in the lab.

08 September 2013 2,946 5 View

What is the best way to make a template for electrodeposition of nano tubes?

We want to produce nano tubes of some metal by electrodeposition and looking for good template for that.

04 May 2013 5,734 4 View

Does anybody know about a simple tunneling experiment to prove the existence of Cooper pairs?

Cooper pairs are responsible for enormous conductivity of the superconductors. Their existence can be proved by a tunneling experiment. I want to know if such experiments have been done for new...

04 May 2013 4,978 10 View

Does any body know if Pakistan can exploit the coal gas as an alternate fuel?

There are talks by Samar Mubarak Mand that suggest that coal gas from Thar coal mines can be exploited and energy problems of the country can be solved. I want to know from the experts if any...

04 May 2013 6,736 2 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

How climate change will influences human and animal behavioral change?

The role of climate change influencing the human behavior as well as economics interest

01 June 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View