How to calculate the wave propagation speed in a copper wire / coaxial cable?

More M. Shoukath Ali's questions See All

Is there any cases algae not using the nutrient from the wastewater and grow normally?

I am working on microalgae cultivation using waste water. The initial concentration of nutrients were less but the microalgae has achieved biomass growth of 2 g/L. The final concentration of...

08 August 2024 4,812 2 View

How can we differentiate between calcite, dolomite, siderite, magnesite and ankerite minerals in carbonatite rocks in thin section under op microscop?

How can we differentiate between calcite, dolomite, siderite, magnesite and ankerite minerals in carbonatite rocks in thin section under optical microscope?

07 August 2024 2,132 3 View

Unusual intensity drop in some sections of chromatograms in DDA?

Hi, we have measured tryptic peptides using both DDA and DIA method on QExactive. In DDA replicates i saw unusual intensity drops occurring at the same sections of chromatograms in DDA replicates...

07 August 2024 3,218 4 View

Can you suggest reliable sources defining "3D mesh" and "3D city models"?

Dear fellow researchers, I am currently working on a paper where I need to provide a reliable reference that defines and distinguishes between 3D mesh models and 3D city models. Although I am...

06 August 2024 9,986 2 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

What is the best sampling strategy?

I am conducting a qualitative study that uses interviews to investigate the perceptions of teachers about a particular leadership practice and I am focusing on 3 schools which have a total number...

01 August 2024 8,457 10 View

Looking for help on sem image analysis?

Hello I am conducting a microstructural analysis of a soil treated with lime. The following sem images are of the untreated s1 and treated soil s3. The untreated soil contains quartz calcite...

01 August 2024 572 0 View

What is Random Audit?

HI there, I've came across several articles discuss about random audit an Non random to tax evasion or compliance. Most of the articles is relating about effect of audit (random or non random)...

31 July 2024 5,309 7 View

Can we patent a process flow diagram developed using a process simulator but no actual cases is carried out?

Can we patent a process flow diagram developed using a process simulator but no actual cases is carried out? For example consider a process for certain product manufacture where a new process flow...

31 July 2024 781 1 View

How can we calculate the percentage of configuration interaction (CI) in the UV output data of the Gaussian program?

How can we calculate the percentage of configuration interaction (CI) in the UV output data of the Gaussian program? for example: Excited State 17: Singlet-A 5.1359 eV 241.41 nm...

28 July 2024 9,165 2 View

Why do i have a weak plasma and no coating during rf sputtering?

I have been getting a low plasma and no coating while doing rf sputtering of copper doped ZnS using a power of 140 watts and at pressure of 6.5x10-3 Mb.

07 August 2024 4,526 4 View

Addition of EDTA during the synthesis of copper nanoparticles to prevent it from being oxidized?

I've attempted to use this method to synthesize copper nanoparticles. Copper nanoparticles can be synthesised using a variety of precursor materials. CuSO4, distilled water, NaOH, and EDTA are...

28 July 2024 8,027 3 View

Wireless insite3d convert path in to image ????

hello dear i need to learn this program any one know ??? i want to convert path propagation to Image reconstruction 2d how is that done ? lik this image??

14 July 2024 1,811 0 View

COMSOL simulation of transient wave optics propagation is not physical?

Hi guys, I am trying to simulate a 1 ps long plane wave propagating in a dispersive material, with the wave optics transient module. According to the drude-lorentz model, when the frequency of...

29 June 2024 486 1 View

How to achieve optimal bonding strength at the wire-bonding process?

Hello everyone, without going too much into details, my thesis is about improving the bonding strength at the wire bonding process. I should focus on laser pretreatment of the substrate. Has...

17 June 2024 366 1 View

How can a single photon propagate in a straight-line in a dielectric medium?

Given the well-documented quantum Rayleigh scattering of single photons in a dielectric medium [1] A. P. Vinogradov, V. Y. Shishkov, I. V. Doronin, E. S. Andrianov, A. A. Pukhov, and A. A....

17 June 2024 7,692 9 View

How to simulate a metalens with backward propagating source using a Lumerical FDTD?

Dear Sir/Madam, I am currently working on a beam shaping problem and have referenced the Metalens example provided on the Ansys Lumerical website. In that example, a forward propagating plane wave...

14 June 2024 4,333 0 View

If silver is doped to copper indium sulphide during hydrothermal synthesis by repacing some amount of copper, what will be the size of nanoparticle ?

If I dope silver during the synthesis of copper indium sulphide nanoparticles by hydrothermal method what will be the size of nanoparticles?

13 June 2024 6,844 3 View

What is the reason for the non-monotonic variation of roughness for sputtered Cu films annealed at 100, 200 and 300 degree Celsius?

I have prepared Copper thin films by magnetron sputtering and the samples have been annealed at 100, 200 and 300 degree celsius. The variation of the rms roughness and all other AFM height related...

11 June 2024 9,774 1 View

How are cancerous cell lines generated in 1900s sold today have the same genetic profile?

From the definition of cell line, they are indefinitely propagated/subcultured. However, in practice beyond a certain passage number, they are said to loose characteristic gene profile, for e.g....

10 June 2024 6,890 1 View

Ali Ouchar

copper is good conductor , then you write Maxwell-faraday and Maxwell equation with the conductivity of coppe and you can find easely wave equation

Kassem Jomaa

The velocity of propagation (v) depends on the permittivity and the permeability of the material. That is:

v = 1 / sqrt(permittivity*permeability)

= c / sqrt(relative_permittivity*relative_permeability)

with c: the speed of light in vacuum

Elangovan Sundaram

Copper the factor is 87/90