Scherrer Constante of polymerics materials in X Ray diffraction XRD?

To calculate the cristallite size L We need K the Scherrer Constante what is mean this parameter and what is its value for the polymers

30 November 2020 6,510 7 View

10W solar panel electrical specifications ?

Dear colleagues I am looking for the electrical specifications of a 10W PV module for simulation use on Matlab ?

06 September 2020 1,842 23 View

Ethanol for cleaning the surface of polymers?

Hello Dears ; Why we use the Ethanol Alcohol for cleaning the surface of polymeric materials.?

03 February 2019 7,989 6 View

What is the relationship between germination rate and soil salinity?

soil salinity

19 January 2017 3,337 7 View

I need some applications for Wireless Sensor Networks implemented using Castalia for test purpose. Anyone can help me with this?

Hello everybody, I need some applications for Wireless Sensor Networks implemented using Castalia for test purpose. any one can help me for this. Many thanks

23 January 2016 1,649 2 View

What are the criteria for selection of a PV simulation model?

Hello my dear,Is that someone can help me to choose a better model PV or tell me the criteria for choosing a better PV model?I need, I ask you to help me and thank you! best regards

11 March 2015 3,322 6 View

FVM and CEM?

I want to know if there is a CEM simulator that uses the the finite volume method FVM.

16 December 2014 3,684 3 View

Can HFSS or another EM simulator give the propaged modes on an antenna espacially the PIFA?

21 November 2014 1,612 8 View

Can someone advise on Keller's reagent with homogenised 6061-T6 alloy?

I utilized Keller's reagent to etch homogenized Al 6061-T6 at elevated temperature, the surface was very good and no microstructure was obtained. Can anyone help me to figure out what is the problem?

15 January 2014 2,047 4 View

No title

14 February 2013 4,790 3 View

How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

What are anisotropic electrical and optical properties of a semiconductor due to?

In some materials, properties such as band gap, thermal conductivity differ along different crystallographic axes. What are the basics?

01 March 2021 1,923 3 View

Why initial concentration of Pb not the same as calculated one when testing using AAS?

I am currently doing research on the adsorption of heavy metal using magnetic reduce graphene oxide. I use AAS to determine the concentration of the heavy metal. I prepare the Pb solution with...

26 February 2021 9,580 4 View

What could be reason for getting such type of graph for complex impedance in case of polymer blend films?

Its effect appears in real part of ac conductivity also. Can anyone suggest any reason behind it?

26 February 2021 3,487 3 View

Modeling viscosity using model of Chung?

Hello, As part of simulation of gases mixture and water, I need to calculate viscosity of the fluid components and I am using relationships proposed by Chung et al. (1988). The irony is while I...

25 February 2021 8,053 5 View

How can I verify my centrifugal fan design for electric motor cooling?

I have radial blade centrifugal fan design which will be mounted on exhaust side of electric traction motor. The fan will be mounted on same motor shaft inside the housing. How can I verify that...

23 February 2021 2,390 3 View

Is this the write procedure for acid digestion of soil for heavy metal analysis using AAS?

How to do acid digestion of soil sample with 3:1 aquaregia in an open vessel?

23 February 2021 3,053 7 View

What is the system of units used in the thermal conductivity by Spitzer and Harm?

23 February 2021 9,253 1 View

Which thermal conductivity test recommended for Ag-Cu nanofluid?

I have prepared Ag-Cu alloy with polymer coating upon it.... how can I measure thermal conductivity of it ?

22 February 2021 5,915 3 View