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

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

What is the relation for entrance length of magnetohydrodynamic flow for rectangular channels?

I need some help to find out empirical relation for entrance length in channel flow in terms of Hartmann number and Reynolds number. As far as I know it is proportional to Ha/Re. I think the...

04 December 2013 5,748 3 View

How can we use a hybrid element in Abaqus Dynamic/Explicit for impressible materials?

Hi, all! How can we use a hybrid element in Abaqus Dynamic/Explicit for impressible materials? I have not find the choice for explicit element in Abaqus CAE. I am wondering whether it is possible...

25 February 2021 9,936 2 View

How does an AC-DC power supply Flyback Converter Based USB Charger Model using Matlab/Simulink looks like?

I am required to learn about Flyback converters and I got stuck not knowing to full design of the power supply flyback converter Based USB Charger Model using Simulink, especially the design model...

25 February 2021 5,435 2 View

How to build fouling and erosion simulation model for Aero Engine compressor and turbine rotor in Simulink / Matlab?

How to build fouling and erosion simulation model for Aero Engine compressor and turbine rotor in Simulink / Matlab?

22 February 2021 3,697 1 View

How can I get "Matlab/Simulink model for Droop/Reverse Droop controllers"?

Dear Professors, Colleagues and Friends I need to develop a simple Matlab/Simulink model of reverse droop controller for a simple LV MG. How can I get a simple one to use it as a sample? A basic...

22 February 2021 8,647 2 View

Why are the modelled and circuit system different in response for controlled buck converter?

[Images are attached at bottom] I am currently working on a buck converter controlled by two different control methods, Reinforcement learning applied to find PID values & a lead-lag...

16 February 2021 5,060 10 View

What's support me on Simulink Matlab Model of Regenerative Braking in DC Traction ?

I have a thesis on Utilize the electrical power from Regenerative Braking in 750 Vdc Traction by simulation in the Program MATLAB Simulink. I made the Power Load flow from 24kV to Traction...

08 February 2021 2,532 1 View

Can we simulate light with matlab ?

Hi, I have to design a digital model of different types of lighting. Is it possible to simulate the lighting level from different sources (LED, incandescent, mainly fluorescence) with matlab...

28 January 2021 3,818 10 View

In which case meta-heuristics algorithms cannot minimize the network error?

Hello, I am working on hybrid neural network. I have combined ANN with two different evolutionnary algorithms to build a prediction model of 6 inputs and one output with one hidden layer of 7...

18 January 2021 7,144 3 View

Algebraic Loop Problem in PV array Solution?

I am doing a project with PV array in Simulink. When I run small section of the total system i do not get an error. But when i integrate full system(my system model`s are completely okay) I get an...

18 January 2021 685 10 View

How to build aero engine fuel system online prognostics simulation model using Matlab, Simulink and Simscape?

How to build aero engine fuel system online prognostics simulation model using Matlab, Simulink and Simscape?

17 January 2021 5,181 1 View