Recent content by chikou24i

I want to extract the mathematical function for this graph of voltage response. Could you please help me or guide me in doing that ...

So you mean that I should take each portion appart (where f(x) is constant) and calculate the integral. Then, I add them all together ? Is there any other method where I can calculate Fourier series normally and then I multiply them by another factor which will make them increase or decrease ?

Hello, can we make a Fourier series expansion of a (increasing or decreasing) step function ? like the one that I attached here. I just want to know the idea of that if it is possible.

This is the refference to the article that I'm working with : Huria, Tarun, Massimo Ceraolo, Javier Gazzarri, and Robyn Jackey. "High fidelity electrical model with thermal dependence for characterization and simulation of high power lithium battery cells." In Electric Vehicle Conference...

Could someone please explain to me what is the definition of a pulse current discharge, and what do we mean by pulse current discharge test ?

Thanks sir for your responce, but what I want to know why the term of spin-magnetic field interaction doesn't appear in the hamiltonian of the electron. is it because it is so small in front of the kinetic energy for example ?

Hi, in the case of free electrons gas under the effect of a magnetic field. The hamiltonian of an electron doesn't contain a term of Spin-Magnetic field interaction this means that it contains just the kinetic energy terms. Why is that ?

Thank you DrDu.

What is the physical meaning of acoustic and optical branches in phonons dispersion curves ?

Thank you very much.

Is that the original article ?

I'm searching for Bose's paper/article that was published by Einstein. Can someone give me direct link to it ?

sorry, I didn't understand what you have said.

What do we mean by break points in band structure ? and what that sentence means : "if the band index were chosen in such a way that the energies are indexed in ascending order for any k then break points would appear in the εnk vs. k plot (with n fixed) wherever two lines intersect." ...

Thank you.