What is the meaning of standard deviation and correlation coefficient in quantum physics?

More Saeed Naif Turki Al Rashid's questions See All

How to Gain Wisdom?

Wisdom is a virtue that isn’t innate, but can only be acquired through experience. Anyone who is interested in trying new things and reflecting on the process has the ability to gain wisdom. By...

01 February 2017 5,308 95 View

What is Scientific Ethics in Research and Why is it Important?

Most people learn ethical norms at home, at school, in church, or in other social settings. Although most people acquire their sense of right and wrong during childhood, moral development occurs...

01 February 2017 4,827 92 View

How can you determine if you are smart enough in your field?

Dear colleagues Thank you in advance for your answer, please upvoted then answer how you can measure your activity in your field that making you , saying Im smart in my field. Best wishes

31 December 2016 1,551 30 View

Is black really a colour ? Or just the absence of light ?

11 December 2016 5,860 11 View

What are the best books that you read in your field?

For me , I did read many books like : 1-FRACTAL SPACE-TIME AND MICROPHYSICSTowards a Theory of Scale Relativity by L. Nottale 2-Quantum mechanics. By L. I. Schiff. 3-Quantum Mechanics by Eugen...

11 December 2016 5,312 20 View

How is nanotech different from biotech?

biotech can be thought of as a subset of nanotech - "nature's nanotechnology." Biotech uses the molecular structures, devices, and systems found in plants and animals to create new molecular...

11 December 2016 9,120 6 View

Why can't we imagine four dimensions?

We little humans struggle to envision a world with four spatial dimensions. Some theories (such as string theory) need as many as eleven dimensions to be hypothetically possible. If string theory...

11 December 2016 2,381 22 View

How can re-publish paper in ISI journals?

Dear RG colleagues As you know there are many fake journals , so Scientists were doing mistake to publish in fake journals ( Beall's List) may be because they did not know more about these...

11 December 2016 3,994 10 View

Do you think the McQ test is best one? and why?

always we exam our student by McQ test so many colleagues think that is suitable to measure scientific level of any student, but there other colleagues think that not useful to measure scientific...

11 December 2016 8,171 16 View

What are the differences between Galilean relativity and general relativity by Einstein?

Galilean relativity states that: "Motion is like nothing". In 1905, Einstein introduced the principle of general relativity which states that: "The laws of physics must be of such nature that they...

10 November 2016 8,905 8 View

1. If I can quantize the atom using this hyperbolic spiral and classical physics, could nature do the same?

If we map as a continuous motion an ionising electron (beginning its journey at n=1) in an H atom, a specific hyperbolic spiral appears (see animation). When we solve this spiral formula, we find...

07 August 2024 5,343 2 View

How are iso-frequency contours plotted?

Let's say we have a standard, regular hexagonal honeycomb with a 3-arm primitive unit cell (something like the figure attached; the figure is only representative and not drawn to scale). The...

07 August 2024 1,937 1 View

Stability of the Solar System: Insights from Einstein’s Equations ?

The stability of the Solar System is a complex subject that blends the classical framework of Newtonian mechanics with the modern insights provided by General Relativity (GR). Understanding this...

07 August 2024 2,569 1 View

Absorption coefficient of methane?

Hello, Can anyone provide me with the absorption coefficient of methane gas at 7.7 um? Any reference?

06 August 2024 980 5 View

How to use Density Functional Theory to calculate carrier mobilities of solid system?

Hello, everyone. I have tried to determine carrier motilities of some materials, by Density Functional Theory, using Quantum ESPRESSO. There are a few methods to do it, like a package called...

04 August 2024 8,894 1 View

What change would occur in physics if the three different sizes of the proton and the two sizes of the deuteron accepted as new physical constants?

For people today, the enigma of the size of the proton still remains enigmatic. However, being myself a researcher in new physical theory which makes it possible to extend the different standard...

28 July 2024 7,823 1 View

How can I use DFT-D3 correction ( Siesta version 5.0.1)?

Dear Siesta Users, I installed Siesta 5.0.1 and I want to use Grimme's D3 correction. According to the 5.0.1 manual, I could use a few parameters to include the D3 correction in the...

27 July 2024 5,748 0 View

Standard curve of H2O2?

Hi, I need to prepare a standard curve of H2O2 to evaluate the primary products of oxidation. H2O2 I have is 35%. How do I prepare a stock of H2O2 10 microlitere. If s.o has experience, I would be...

26 July 2024 3,460 2 View

Can we eliminate the stress singularity at the tip of the crack by manipulating the elastic constants?

The aim of the research here is to prevent the propagation of the crack in the fabricated elastic medium with useful applications.

25 July 2024 9,976 3 View

Can anyone kindly suggest research topics in the area of thermodynamics, heat transfer, fluid mechanics or renewable energy?

I am an undergraduate mechanical engineering student seeking suggestions on topics related to either thermodynamics, fluid mechanics, heat transfer or renewable energy for my final year project....

24 July 2024 4,058 5 View