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 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

What thickness need for ITO to use as conductive layer?

I want to do RF sputtering of ITO on glass substrate using magnetron sputtering. what thickness do i need to make it good conductive layer to use it for PSC. Moreover, whats about thickness of...

01 March 2021 395 3 View

Glass fiber content in a gypsum board ?

Any idea on how to get the volumic ratio of glass fiber in a gypsum board ? Thank you for your help !

01 March 2021 2,501 3 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

What is Flat Lens Antenna?

28 February 2021 5,433 3 View

Concrete compressive strength databases?

I am looking for datasets similar to this one: http://archive.ics.uci.edu/ml/datasets/Concrete+Compressive+Strength I am looking for concretes with different types of aggregates (Recycled,...

27 February 2021 6,801 3 View

Can impedance of antenna be less than 50 ohms?

I am simulating helix antenna in hfss, right now, giving excitation with 50 ohms port. When I see the results of Z parameter (real). It shows lower than 50 ohms. Do not understand, if it can be...

27 February 2021 4,218 7 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

How to measure angle between laser travel path and machine axis in Laser Measurement system?

25 February 2021 1,987 3 View