Calculating of absorption and efficiency of solar cell?

Dear my friends I want to know how can I calculate absorption and efficiency of solar cell? Regards, Elmira

09 October 2018 8,231 1 View

Comsol software simulation?

Dear my friends I want to know, Can I simulate Pl spectroscopy with Comsol software? Regards, Elmira

06 July 2018 3,740 0 View

Agglomerate nano particles and agglomerate nano particles?

Dear my friends what is the difference between absorption coefficient of non-agglomerate nano particles and agglomerate nano particles? Regards, Elmira

05 June 2018 4,499 0 View

Multiple scattering and single scattering?

Dear my friends I have one question about multiple scattering and single scattering: suppose that a system consist of many particles and you want to calculate scattering cross section at...

01 February 2018 3,339 0 View

Diamond IR window?

Dear my friends Is diamond IR windows better than ZnS IR window or vise versa? why? Regards, Elmira

31 December 2017 1,430 3 View

Multiple scattering and single scattering?

Dear my friends, I want to know is scattering cross section of group of particles in single scattering more than multiple scattering? Please introduce references to me. Regards, Elmira

11 December 2017 1,819 4 View

Absorption coefficient of C-O NOT monoxide carbon?

Dear my friends I want to know what is the absorption coefficient of C-O in IR region? Regards, Elmira

11 December 2017 8,656 2 View

Refractive index of glass?

Dear my friends How can I calculating refractive index of glasses? is there any model about this subject? Regards, Elmira

11 December 2017 8,210 5 View

Absorption coefficient of Graphite??

Dear my friends I want to know absorption coefficient of Graphite in IR wavelength. Please help me. Regards, Elmira

09 October 2017 7,006 2 View

Absorption coefficient of hexagonal ZnS

04 May 2017 5,517 1 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

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

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 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

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View