Electronics and Communication - Science topic

Web B.T.Desai , 10705 Westpoint Street, Taylor, MI-48180.

You probably can make use from this paper:Determining Sample Size for Research Activities, by R V Krejcie and D W Morgan, 1970, in :Educational and Psychological

Measurement.

Dear Tamer S. Mostafa Indeed, as you said it depends on whether they are indexed in Scopus or not. SCImago makes use of Scopus data and assigns a h-index to journals and proceedings. See for example: Proceedings of the IEEEhttps://www.scimagojr.com/journalsearch.php?q=17915&tip=sid&clean=0

You mentioned “international japan-africa conference on electronics, communications and computations (jac-ecc 2022)” https://jac-ecc22.ejust.edu.eg looks like a good and genuine conference. According to SCImago the 2018 conference has/had a h-index of 4:

and of 2016 has/had a h-index of 6:

The other one you mentioned “The Sixth International Undergraduate Research Conference (2022) of The Military Technical College (IUGRC-6)” https://iugrc.conferences.ekb.eg looks just fine (and is around for already quite some years https://iugrc.journals.ekb.eg ). However, I was unable to find any indexing. Since they are not indexed in Scopus, they are not included in SCImago, and the proceedings will not have a h-index.

Best regards.

PS. SCImago needs data from the last three years to calculate their metrics so I suspect that it takes some time before the IEEE will receive their h-index.

That's a very interesting research domain. I wish you best of luck

The problem that I usually face that there are some journals that claim on their sites that they are Scopus-indexed while they aren't. On the other hand, other journals hide the facts by saying some tricks like Scopus (2020) or Scopus (2013).

For instance, one of the journals says at its main portal that it is indexed in Scopus. But I don't find it on the Scopus list. I have written many emails to them, they always ignoring me!

The attached file is an Excel sheet that contains the last updated list. You can download the last version anytime by click on "Scopus source list" from the Scopus portal:

You may try this (Renewable and Sustainable Energy Transition). This is free of charge for all submission before October 2021.

Dear Srinivas Talasila, you can check here to find out your desired SCI Journal without APC: https://www.letpub.com/index.php?page=journalapp

I think it is not easy to determine the fading distribution of VLC channel as it totally depends on the scenario. For example the indoor scenario is totally different about vehicular ones. Also, other parameters might affect this like frequency, existing of blockage and shadowing, etc.

If what you are searching for is the capacity to simulate the damage in boards when irradiated, you could use TCAD for that (through the Sentaurus Workbench). Once the electronics is designed, it allows for a radiation damage model.

thanks Mohamed Fezari and Aparna Sathya Murthy

Hi,

In my work I have defined a platform that enables eHealth or other care interventions as a reusable core of functionality with various interfaces that change the interaction with people at the periphery. This then covers video, physiological measurements, data and machine learning platforms. In the way that a social media platform can be reused to facilitate different use cases the central core of most technology platforms are communication, processing and storage. This is reflected in Aleksandr's answer. However, most of my work has taken the platform as an iterative development and focused on the sociotechnical nature of how the peripheral interfaces enable new ways of working. My experience is that most of the obstacles to using technology arise not because of the technology itself but the way in which it disrupts practice.

Dual band refers to a device which uses two different frequencies to communicate.

Dual radio refers to a device which uses two different protocols to communicate.

Maybe an illustration would help. A dual band device is like a person at a party who can move between two different rooms (different frequencies) to talk with other people, while a single band device would be limited to talking to people in only one room. On the other hand, a dual radio device can speak with people who speak in two different languages, while a single radio device can only speak one language.

A dual radio device is typically used as an intermediary between two different networks like 802.11 (like WiFi) and 802.15.4 (like many wireless sensors).

Can you supply me the general topics in it.

Regards.

Denis:

My understanding of the 'exam question' that Farid Hosseinzadeh has set us is:

Given the PCB with GNSS chip installed, what piece of test equipment should be connected to the input connector of the PCB in order to find the characteristic impedance of the track connecting the input connector to the chip?

The picture I have in my head is that the track is in the order of a few cm in length and I am additionally assuming that no modification of the PCB to facilitate the measurement would be welcome.

From the assumption about track length I was then thinking along the lines of section 9.2 in Keysight Technologies, 'Time Domain Analysis Using a Network Analyzer' http://literature.cdn.keysight.com/litweb/pdf/5989-5723EN.pdf, which is saying that the TDR NWA should be operated with wide frequency span to resolve down to disconuity separations in the cm region.

If you could provide details of the measurement you thinking of, which answers the requirement as stated in this post, without using a wideband test pulse or a wide frequency span NWA test signal, I will happily be educated.

Because:

1. Math lover

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4. Socially most prestigious professionals

I am still trying to understand if the time alignment to PCell's time frame structure is really necessary. It seems there could be non-time aligned transmissions by the SCell as long as it transmits the necessary signals (RS, PSS, SSS, BCH, etc.).

Does anyone know if there is some kind of limitation to non-aligned transmissions?

This is just a convenient order of magnitude considering that oscillators are usually not built in the Watts range of output power. And hardly to be achieved in the µW range. So dbm (I assume this is what's in the references) is simply convenient: simple (small) figures without any useless "offset" in the figures.

This is a good article to start with:

The Delphi Technique: Making Sense of Consensus - Practical Assessment, Research & Evaluation

 

I suggest you to use scopus to have a complete vision

hello

for the varactor equivalent model on ADS, you can use Spice model in ads is very useful.

thanks

I am also interested to hear from colleagues if a Likert scale on this issue is available. Otherwise, you can use Visual Analogue Scale (VAS) for this purpose.

I believe the question in relation to the law on cold calling may only be answered if you provide a location but i am sure there are general guidelines set by the ACA Code of Ethics to follow. But could you provide a location for where you would like to know the law on cold calling?

Calculating LLRs requires generating a set of vector symbol candidates. Once you have a set of candidates, the LLRs can be computed the same way as a sphere decoder does it. How to generate such set? As an starting point, I'd suggest you to try the following approach:

1. Calculated the the ZF/MMSE equalized vector symbol.

2. Before performing hard decision, find the K closest constellation vectors to  your   ZF/MMSE equalized vector symbol.

3. Then you will have K+1 candidates from which you can compute the LLRs. (K obviously depends on the size of the constellation set).

Hope this helps.

I don't understand your question. Please clarify your question and provide as much information as possible. That will improve the likelihood that you will get helpful responses.

The calculation of imaginary part in comsol must be taken account . You have to set up in your equation(physics) that the imaginary part must to calculate too. If you already calculate the real and imagninary part, you can show this with command "imag(x)" and "real(x)"

Typically it works the other way around. You use lumped ports in your momentum simulation, create an EM-model, and connect your active devices/resistors/capacitors to these ports in the schematic simulation.

Hi

These research papers can be helpful for you

1)  http://scitation.aip.org/content/aip/journal/apl/101/25/10.1063/1.4772068

2) http://scitation.aip.org/content/aip/journal/apl/101/22/10.1063/1.4768784

3) http://scitation.aip.org/content/aip/journal/adva/3/8/10.1063/1.4818483

Regards

My number is 8979719397

One way is to find the difference between experimental values (measured) and the values generated by your model. To do it you can use RMSE. To find reliable model you have to add the effect of height of receiver as well as transmitter, center frequency, frequency bandwidth, distance between transmitter and receiver, the type of channel and so on. For more details you can refer to HATA or Okumura Models.

Whats your overall processing goal?

Do you use the image fusion as a part of pre-processing for subsequent tasks like feature extraction and classification?

If this is the case, it might be feasible to evaluate the quality of the fused images with respect to the overall processing goal. Use different fusion paramters and compare the impact on feature extraction and classification performance. If a certain parametrization of the fusion leads to better classification results (or vice a versa) you have a very intuitive quality measure regarding your specific processing goal.

If you are looking for more general approaches, the following work might give you a good starting point: 'A Survey on Different Approaches Used In Image Quality Assessment' - http://paper.ijcsns.org/07_book/201402/20140212.pdf

I hope that helps.

Whenever I have done HW in RTL I implemented a functional model with basic tests before. Later I used the functional model as golden device to execute more complex tests and compare the results agaianst the RTL. I never did this for a complete processor but I don't see a good reason why it should be different.

The performance using DSSS should be strictly better, it is a two-step process where you first detect the bits/chips and then feed them into a decoder.

You can find my results for reception of collisions (with and without DSSS) in the following paper, it should also be useful to derive general BER:

There is also a link to my Python code in there.

The half-sine pulse shaping is already included in the MSK modulation, if you start with O-QPSK you may have to convert the chipping sequences like explained here:

Hi Sandeep,

they sell it to recycling companies. As the manufacturers have to take the product back anyway (at least in the European Community), they propably make the most of it. A quick internet search revealed that 1 kg of cel phone circuit boards is worth 16 €, 1 kg of cell phones (w/o battery) 7.50 €. So this is how they get rid of it.

On the plus side they have additionally something to prevent people from changing the brand. And in the end the size of the discount gives you an idea of the profits they make (because no matter how big the discount might be, there sure still is profit).

The issue that needs to be understood is that all circuits are all distributed at all frequencies except DC. Ohms law is a DC law, But at low frequencies, resistors behave much as they do at DC and Ohms law can be used. At higher frequencies, the distributed behavior becomes dominant. The same thing happens with very long power lines. Even at as low a frequency as 60 Hz, a very long power line (eg 500 miles) shows it distributed nature as must be treated as such. The underlying reason is that the actual electrical signals propagating in the circuits are electromagnetic waves, not volts and amps, which are induced by the electromagnetic wave. The conductors just act as guides for the waves. So a coaxial cable, for instance, will show Z=75 ohms (or some other Z, depending on the cable), even though its dc resistance is negligible.

You can use the multi-platform free-ware FFMPEG (http://www.ffmpeg.org)

Example of command (other parameters are of course possible)

ffmpeg -r 1 -f image2 -i image_%d.jpg -vcodec libx264 -crf 10 out.mp4

where images are named like this image_1.jpg, imafe_2.jpg, ...

If You are going for spectrum sensing ,Ns2 is also preferred... I am working on Geolocation based data base approach of CR .. So I am using Matlab only...

Here is the Barrie Gilbert's "Integrator inside":

Have not tried this but just a suggestion. How about taking overlapping blocks and then apply appropriate fusion technique on the overlapping region only, that way you will get good mix of both the filter outputs which might make transition look natural.

Regards...

I think this isi possible using blind detection or separation algorithms, you can find many of them.

NO current flows into human body from RedTacton devices. RedTacton uses

the Electric field that occurs naturally on the surface of the human body for

Communication. Transmitter and receiver electrodes are covered with an Insulating

films. RedTacton is in conformity to the "Radiofrequency-exposure Protection”

standard (RCR STD-38)" issued by the Association of Radio Industries and

Businesses...

The "brick wall" is just an approximation. Rather than knowing the exact frequency response, it is assumed 100 % transmission in the pass band, and 0 transmission in the stop band. Since that is just a rectangle when graphed, it looks like a brick wall. A real filter can't actually have that response, but since it makes the math easier you can use it as an approximation.