How can one sustain "Happiness"?

It is often felt that "Happiness" is a temporary feature; whereas, "Unhappiness" is a not-so-temporary feature of life. A natural philosophical question now arises towards "Happy life". How can...

02 March 2019 8,325 18 View

Do electrons and protons have independent minds to decide the directionality of gyromagnetic effects?

We have mind. We are made up of matter. Does matter have its own mind? Do electrons and protons, which are the building blocks of matter, have independent minds to decide the directionality of...

01 February 2019 8,130 3 View

I need good study materials on the effects of "tidal force" on self-gravitational cloud collapse. Could you please cooperate?

I need good study materials and books on the effects of "tidal force" on self-gravitational cloud collapse. Could you please cooperate?

31 December 2018 8,542 0 View

Can any one simply explain how the Jeans instability is affected by cosmic ray particles?

Can any one simply explain how the Jeans instability is affected by cosmic ray particles? References and suggested readings are welcome.

11 December 2018 5,710 4 View

How is a usual polytrope influenced in the presence of the kappa-distributed constitutive particles?

How is a normal polytrope influenced in the presence of the kappa-distributed constitutive particles?

11 December 2018 5,203 1 View

Could you please provide a list (preferably, tabular form) of various nothermal distribution laws relevant in astrophysical fluids?

Astrophysical fluids are nonthermal in nature. Could you please provide a list (preferably, tabular form) of various nothermal distribution laws for the constitutional particles relevant in...

11 December 2018 3,363 1 View

Can anybody help me in finding all the nonthermal realistic particle distribution laws realizable in interstellar space?

Interstellar space is nonthermal in nature. Can anybody help me in finding all the possible nonthermal realistic particle distribution laws realizable in interstellar space?

10 November 2018 2,776 0 View

There has been a great need of some reference books on "electrohydrodynamic (EHD) theory" of stellar winds. May anyone suggest reliable references?

There has been a great need of some reference books in our laboratory on the "electrohydrodynamic (EHD) theory" of stellar winds. May anyone help us by suggesting reliable references in this context?

09 October 2018 7,450 0 View

What are the different methods for analytical solutions of ordinary nonlinear differential equations?

What are the different methods for obtaining analytical solutions of ordinary nonlinear differential equations (LEEq, reduced KdV, etc)? Aim is to compare the efficiency and reliability of...

07 August 2018 6,744 0 View

How to derive the mathematical condition for the plane-wave approximation?

How do we derive the mathematical condition (on the system size and angular wave number) for the plane-wave approximation?

06 July 2018 8,216 3 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

Is there any effect of different colours of light (white, red, yellow, blue etc.) on the rate of photosynthesis? If yes, why?

Light is inevitable for the process of photosynthesis reaction. Naturally sunlight plays the vital role for this process. Light may be of different colours like white, red, yellow, blue etc....

02 March 2021 7,890 2 View

Do you know any MR image dataset?

I would like to research on MR images (0.5T and 3T). Can you please suggest some websites that I can download dataset including both 0.5T and 3T MR images? Thank you.

02 March 2021 7,735 3 View