In a holly-core fiber, should the effective index of the fundamental mode be higher or lower than the core refractive index(n=1)?

Hi, I was wondering in hollow-core fibres should the effective index of the fundamental mode be higher or less than the core's refractive index (in this case, n = 1 because the core is filled...

17 January 2021 2,220 3 View

Is there a way to measure energy dissipation in Matlab/Simulink?

I am trying to measure the energy in (Joules) in a Surge Arrester MOV. I am simulating a Hybrid DC circuit breaker.

17 April 2020 259 3 View

How can I trip an ideal switch when a short circuit fault occurs?

I am simulating a Mechanical DC circuit breaker. I used a step to put on and off. I wanted to use a "compare to constant" block so that when the fault current goes over the threshold the ideal...

24 March 2020 1,709 3 View

DC circuit breakers?

Hi I am trying to simulate DC circuits; MCB, SSCB and HCB but i cannot find a model i can use. Does anyone know a journal or a simulink model i can use. Any help will be really appreciated. Thanks

17 March 2020 7,696 3 View

Can a research paper be sent to two journals at the same time, just to save time in case one of the two rejects the paper?

Most of the academic journals take so long just to review the research paper, and most of the times they reject the paper. I was wondering if any researcher can send his paper to two journals,...

18 July 2019 4,444 9 View

Can any body Suggest me a set up that I can build it up to study the surface roughness of transparent polymeric fibres?

I need to study the surface of nylon-6 blank fibres with a thickness of nearly 40 micrometre, I work in optics lab with many optical components such as beam splitters, lenses, mirrors ... etc, can...

18 March 2019 236 3 View

Active site of the protein: how much can it be changed before losing function?

How much spatial change can amino acids of protein's active site withstand before being unable to perform protein's function? We can, for example, compare X-ray or NMR structure of protein with...

16 November 2016 4,954 3 View

What may be the result/product when curcumin react with aniline or any other amine compound?

Could you please answer for what may be the result/product when curcumin react with aniline or any other amine compound, pls suggest some references if possible. Some of researches are found as...

07 May 2016 286 4 View

Can anyone suggest to me any antimicrobial activities of manganese oxide nanoparticles?

10 March 2016 3,709 3 View

Polyaniline composite with TMA, DMA and MA?

Polyaniline-based composite on GCE used for trimethyl, dimethyl and methyl amines through CV. In the case of TMA and MA the peak height was increased with increasing concentration, whereas DMA...

09 January 2014 9,090 3 View

How to Confirm/Identify nano-particles using XRD Analysis?

Thank you for showing your interest here. For research I recently purchased 3 different nano-particles online, but when I received the particles, they were tagged with name of some other material....

22 January 2020 8,687 7 View

How to extract solar cell parameters from fitting the Shockley equation to experimental I-V data?

Hi I have tried fitting the Shockley equation to my I-V data to determine Iph, Rs, Rsh, n. I use OriginPro software, and fitting doesn't converge. I have defined the custom function in the...

08 September 2019 2,242 6 View

Any free tool for schematic drawing of solar PV devices?

Whenever researchers plot a graph for academic, research publication or hypothesis testing, a quality graph will always result a long-lasting impression and can make a huge difference in the...

07 July 2019 7,735 10 View

Any free tool for schematic drawing of solar PV devices?

Whenever researchers plot a graph for academic, research publication or hypothesis testing, a quality graph will always result a long-lasting impression and can make a huge difference in the...

06 July 2019 6,490 9 View

How can i statistically compare dose-response fitting curves?

I have three dose-response curves (concentration vs TEER (% on blank)), coming from three different passage ranges of the same cell line. I have fitted the three curves using OriginPro and each...

31 December 2018 2,020 4 View

How choose/determine initial values of parameters in curve fitting?

I have a series of (x,y) data that should be fitted by an equation (In order to finding the equation parameters: A, D, T). I used OriginPro software for curve fitting. In fitting tab, the software...

10 November 2018 6,289 12 View

How to reproduce box-and-whiskers plots given by REST2009?

I used REST2009 for statistical analysis of my data. The final data given by the software were box-and-whiskers plots as indicated in Figure 1. I wanted to extract the raw data (File 2) in an...

08 September 2018 920 0 View

Anyone have idea on how to do multiple regression and statistical analysis of the regression slopes using ORIGINPRO 2018 SOFTWARE?

I have carbon number 11 to 19 species that were transformed at different rates during treatment over time. I want to perform a linear regression and determine if there are statistically...

06 July 2018 6,087 1 View

How to merge xrd plots in origin pro with different x-y scales but range of 2theta is same ?

I have xrd scans for same range of 2theta but with different step size so scan time is not same. Now I want to merge these plots to compare the peak positions. Is it possible to do so in origin...

05 June 2018 7,076 5 View

Best open-source free software for plotting scientific graphs?

Hello everyone, Can anyone please let me know of any free open source software for plotting good quality scientific graphs? I don't find MATLAB ,MS Excel or either Adobe Illustrator to be that...

03 April 2018 2,213 8 View