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

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View

Which is a lucid standard comprehensive book to guide on psychological scale construction and its standardization?

02 March 2021 7,082 3 View

What element is driving the different slop in the low frequency tail?

My study consists simple corrosion inhibitors in salty brine. Right now I just fit my circuit with randles with CPE. Just wondering how the slop can given more info of the experiment. Or any...

01 March 2021 6,474 3 View

LOAD DISPLACEMENT CURVES Stiffness increasing in ANSYS non linear analysis. HOW CAN I CORRECT IT?

Hi. I am doing non linear FE analysis using a new material beam under flexural 2 point loading using ANSYS. I have defined a bilinear material model. The solution has converged. In results I am...

01 March 2021 9,911 3 View

I need to accelerate corrosion in steel parts that are used in a salt-water environment. Is there a technique for doing so?

I have a structure that employs d-ring swiveling tie-downs that corrode during use and become "frozen". I have sample swivel assemblies that I wish to corrode to see if I can free them using one...

01 March 2021 3,739 3 View

How to choose ANN number of hidden layers and nodes?

Hello, Could you please share any interesting research explaining how to choose the number of hidden layers and nodes per layer in case of regression problems using ANN? Thank you, any help would...

01 March 2021 6,200 3 View

PUC19 as a transfer plasmid for lentiviral delivery?

Hello, Is it possible to use pUC19 as a transfer vector to be packed in using the second generation viral particles packaging system( pMD2.G; psPAX2 plasmids)? As far as I understand it there is...

28 February 2021 4,868 2 View

How could I take into consideration the weights of observation in a system of seemingly unrelated regressions (SUR) in rstudio?

I build a model of 4 regression equations (probit and OLS) in R studio. I need to take the weights of observations into consideration. While it is simple to do so for every regression equation,...

27 February 2021 1,233 1 View

Can random sampling have inclusion criteria?

As random sampling means that everyone in the population have an equal chance to be chosen, can it have inclusion criteria? My research participants have been chosen based on the inclusion...

26 February 2021 6,905 10 View

Do you kow of any database containing data on retention time, log P and polarizability for a large number of molecules?

Hi, I am a chemistry undergraduate doing my dissertation project on HPLC. In my project, I need to predict the HPLC retention time of 20 aromatic molecules, the calibration set. To do this I will...

24 February 2021 2,602 1 View