What is a relation between relaxation time and mean free path for ideal gas?

These two values should be interconnected throufg integral of collisions. But I can not find a clear formula.

10 November 2018 233 1 View

Any example of a quantum particle in unstable state and driven by harmonic force?

May be anyone may bring an example of such kind particle taking place in nuclear physics or solid state or smth else. For example an electron in disordered semiconducter situated at maximum point...

04 May 2016 6,060 6 View

Klein- Gordon equation for the spinless particle in potential field, how does it look?

I didn't find in literature K-G eq. for non-free particle. Anybody who knows please write me down it. Thanks in advance Viktor

01 February 2016 1,935 5 View

May exist the force upon point mass directed along its velocity?

The opposite directed one is e.g. the drag force. T here should be a fundamental reason for this non-existing. What is?

04 May 2015 227 0 View

Can anybody present an example of ODE with a periodical solution and having bifurcation with the period changing by integer or half-integer times?

11 December 2014 6,146 2 View

Mechanics

Has anybody got a Simple explaination of the Rattleback behaviour?

08 September 2014 4,894 1 View

Mechanical effort depending on acceleration - any thoughts?

In Newtons II law the force F acting on a body may depend on time, position and velocity but not acceleration. Otherwise the parallelogram principle doesn't operate for partial accelerations. And...

07 August 2014 9,527 9 View

Is SSRN e-Journal Scopus indexed?

I have publication in SSRN. I want to know whether it is Scopus indexed? Does it show impact factor? What is its ISSN No.?

02 March 2021 4,565 3 View

How to calculate average trend in maximum annual NDVI from MODIS?

I am wanting to calculate the average trend in maximum annual NDVI in Iceland from 2010-2020 using MODIS MYD13Q1 V6. How would I do this? I have currently inserted the NDVI bands from the MODIS...

02 March 2021 752 2 View

Any research paper call for publication related to management or finance or economics?

It should be standard journal (Indexed)

01 March 2021 8,379 1 View

Can polymer concentrations be calculated based on the number average molecular weight?

Hello, I spin-cast two different polymers onto wafers and measure their height as a function of initial concentration. For polymer A, I have the weight-average molecular weight (Mw) as well as...

28 February 2021 7,882 2 View

How can I publish a manuscript in free or low cost journal with good H-Index?

Dear all I am going to publish my manuscript which is from my thesis in a good H-Index journal but I found them very expensive(I don't have financial support) based on the exchange currency of my...

28 February 2021 7,800 6 View

How to find fast publication Scopus Indexed (Q2) journals in Computer Science and Engineering?

Dear Researchers, I would like to find some (Q2) Scopus-Indexed journals with fast publication in the field of Computer Science and Engineering major?

28 February 2021 3,285 2 View

Scopus Index Journal List , 2021?

please provide me the most recent Scopus Index Journals List, February-2021

27 February 2021 3,545 1 View

How can be researcher's index developed?

What are the criteria to be followed to develop the researcher's index?

26 February 2021 9,051 0 View

The Shannon's index is inversely proportional to Simpson's index (1-D)?

I'm having a problem with my bloxplot with Shannon's and Simpson's indexs. The value of Shannon for my Community 1 indicating higher diversity (in relation of the Community 2), but have lower...

26 February 2021 3,033 9 View

Which index or sites are reliable in determining of plant species?

There are many indexes when determining plant species: Plants of the World Online (POWO), International Plants Names Index (www.ipni.org), The Plant List (www.theplantlist.org) and others. But...

26 February 2021 3,404 10 View