What are the meanings of Teaching, Lecturing, and Training?

It senses that teaching is giving all the information to the student but not encourage students to think beyond that and work on the Research. The lecturing is not a lesson which gives all the...

09 October 2018 5,272 1 View

What is the refractive index contrast of PCF?

I hope the step index contrast of PCF is the difference between the refractive indexes of solid (background or host) and holes. I need further explanations.

03 April 2018 5,478 0 View

Is it possible to exist HE11 mode of the tube glass by TIR wave guidance?

I want to get the HE11 mode of a glass tube. Is it similar with the HE11 mode of solid core PCF with homogeneous electric field lines?

02 March 2018 6,175 10 View

What are the current issues on PCF design and simulations?

We are working with COMSOL simulation.

02 March 2018 6,690 0 View

What is preprints on research gate?

Dear Friends Are you aware about preprints on research gate? (https://explore.researchgate.net/display/support/Preprints) As it says, there are many advantages of adding our work to preprints...

01 February 2018 5,360 5 View

What is the procedure to do convergence test to optimize the mesh size?

The size of meshing is important in COMSOL simulations. It is better to fine the mesh size as possible but it increase the simulation time. It was came to know that convergence test can use to...

31 December 2017 2,371 0 View

Is it possible to get a clear structure of PCF structure to word document?

31 December 2017 3,248 1 View

What is the difference between perfectly match layer (PML) and full vector anisotropic perfectly matched layer (APML)?

09 October 2017 2,686 0 View

What is the way to adjust citation style for Mendeley?

I am using Mendeley citation management tool for my paper work. I want to customize IEEE citations style according to the requirement of the journal (Microwave and Optical Technology Letters)....

09 October 2017 8,127 7 View

In the mode analysis by using COMSOL multiphysics, is there a way to optimize the mesh size?

I use physics controlled mesh option of COMSOL 5. But sometimes it takes a long time. When I increase the size of mesh, the circular shape of holes of PCF is apparently deformed. Could you please...

09 October 2017 1,998 3 View

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 View

Why should we choose deep learning to machine learning? Why is CNN better for image classification? Can I get Typical Answer?

What Characteristics makes CNN work better?

03 March 2021 1,458 4 View

What are some of the research gaps in machine learning and artificial intelligence in africa?

i would to know some of the research gaps in the artificial intelligence field in most african countries.

03 March 2021 6,145 3 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Anyone plz suggest relevant topic for research in image processing+Deep learning.?

I have selected brain tumor images ...but now found that already lots of research done n this topic.

03 March 2021 5,774 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

Why Austenite grains in steel show much more twinning than ferrite grains?

It is oftentimes said to be a distinctive metallographic trait that differentiates a fully austenitic and a fully felly ferritic steel without etching that might distinguish between two. Why...

02 March 2021 728 2 View

Where can I find life cycle inventory or assessment of non woven materials?

Dear network, I am looking for the LCA or LCI or at least the energy balances of the non woven fabrics process for my master project, in specific for natural fibers, yet I have found...

02 March 2021 9,662 1 View