Whether the X-ray source and electron source must be coherent for XRD and electron diffraction?

Whether the X-ray source and electron source must be coherent for XRD and electron diffraction? For X-rays emitted from X-ray tubes and electrons from electron guns, the photon and electron...

01 July 2020 540 9 View

How to get the eqution of the covariance matrix Rk based on residuals?

How to get the equation Qvxk=Rk-HkQxkHkT by applying the error propagation law to vzk=(E-HkGk)dk?

10 December 2019 8,315 1 View

How can I search a substructure in a big structure?

Hi, I have a cubic MD simulation box containing 56 molecules, the positions and orientations of these molecules will change during the simulations, and I have another crystal cell containing...

31 July 2019 3,021 1 View

Can you recommend me some chapters and articles about III-V solar cell manufacturing?

I want to learn the fabrication of III-V multijunction solar cell details.

03 December 2018 3,490 3 View

Why sometimes in EN measurement [ZRA mode], only current or potential signal shows transients, not simultaneously in both current and potential data?

Hi, I recently got an EN record as shown in the attached image. The carbon steel specimens were uniformly corroded in general, but there were a few areas that were corroded more seriously - the...

28 February 2018 3,707 2 View

A shift in RT in my HPLC, please help me?

I used C18 semi-prep column to purify natural products. I've found the great gradient for my compound purification and ran 2 run for 50um of my sample and I have wash procedure after each sample...

06 February 2018 2,520 2 View

How to distinguish the direction of subduction by foliation occurrence of the accretionary wedge?

01 July 2017 4,283 2 View

No title

26 May 2017 7,984 2 View

What effects temper martensite embrittlement have on fatigue of steel ?

what effects temper martensite embrittlement have on fatigue crack nucleation and propagation?

10 October 2016 1,576 25 View

How can I measure cholesterol and triglycerides level in mouse liver?

we did plasma measurement of cho and tri. in our mouse samples, now we would like to measure direct level in the fresh tissues, does anyone know where we could do this around montreal area, or any...

12 July 2016 6,187 5 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

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

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

Fractional impervious surface (FIS) map ?

Need Help Does anyone Know how to make a Fractional impervious surface (FIS) map from NDVI map, in ArcGIS environment? Thanks in advance

24 February 2021 8,455 2 View

What is the most important parameter of a research work, the impact factor or the h index?

The impact factor is a measure of the importance of a journal based on the number of citations received in a year. ... Articles published in a journal with a high impact factor do not all receive...

24 February 2021 7,481 2 View

How to calculate refractive index (n and kvalue) against energy (in eV) data for alloyed nanomaterials through Independent Phase Approximation method?

Suggest me the method or some other software to calculate the above said data for nanoparticles.

21 February 2021 3,350 7 View

How to get/count refractive index in gasses?

20 February 2021 8,202 6 View

How to realize refractive index values of 1 to 1.1?

Hello researchers! While studying the literature on refractive index sensors, most of the articles simulate their devices with a refractive index ranging from 1 to 1.1, with small steps in...

17 February 2021 1,578 4 View

Any recommendations for methods to analyze elephant space-use (using GPS) and correlating this with changes in NDVI?

For my Masters I am looking into elephant space-use and its effect on vegetation change. I have elephant GPS collar data and was going to use Google Earth Engine to obtain NDVI values. I would...

16 February 2021 7,097 3 View