Which algorithm (Sobel, Perwitt, Roberts, Canny and LOG algorithm) is more capable of finding noisy image edges?

The edge detection algorithms are designed to respond to sharp edges which can be caused by noisy pixels. In image analysis edge detection plays an important role and it is one of the traditional...

05 August 2020 2,543 1 View

What is the best way of Evaluation Performance for Multiclass Data?

For classification problems, classifier performance is typically defined according to the confusion matrix associated with the classifier. Based on the entries of the matrix, it is possible to...

19 May 2020 3,472 4 View

Best EEG dataset for sleep stage classification?

I am looking for a best dataset with signals of EEG that is used for sleep stage classification.

12 May 2020 5,935 3 View

What are the public biosignals (ECG, etc) datasets of COVID-19 patients?

I am researching QOVI-19 and need a database that contains biosignal data such as electrocardiograms. Is there any dataset?

12 May 2020 9,274 3 View

What are the techniques and standards used to measure and report contamination content in Vacuum furnaces, especially, Vacuum Arc Melting furnaces?

In Vacuum Arc Melting: Is there any standard for measuring and reporting contamination in vacuum furnaces? What are considerations for the effects of using or varying vacuum and/or sub-atmosphere...

04 November 2019 2,153 2 View

What is an appropriate interpretation for high values of Avrami exponent during the crystallization?

I am looking for a scientific explanation for the anomalous values of Avrami exponents. Regrading the literature, the typical values of Avrami exponent have to be between 1 and 4. Different Avrami...

01 November 2019 1,223 13 View

In SDS-PAGE , how possible to use freez-dry samples for loading in gel electrophoresis?

I freeze fungal mycelia of mushroom. In SDS-PAGE of total protein ,If I freeze mycelium I can used this sample? How should I prepare mycelium for electrophoresis? How should I make it for...

01 October 2018 7,971 5 View

What is the extinction coefficient of pyrogallol at 430nm for calculation of PPO(polyphenol oxidase) activity?

I performed the polyphenol oxidase activity assay from certain mycelia extracts using pyrogallol as susbtrate. I have the absorbance values but am facing the problem in determining the enzyme...

05 August 2018 172 1 View

Do you know that using patch of sentinel image (80 piece with 16000 ha area) separately in comparison with using integrated image for supervised ?

Do you know that using patch of sentinel image (80 piece with 16000 ha area) separately in comparison with using integrated image for supervised classification, causes higher accuracy or not?...

20 April 2018 7,293 1 View

What is the drug standard used in research for EGRF mutated lung cancer cell line?

09 April 2018 9,033 2 View

Why does two different bioinformatics tools for the same proteins show different subcellular localizations?

During a computational analysis, I found that for a protein of a plant, two different subcellular localizations are seen using CELLO and WoLF PSORT. For example, in CELLO, it identified the...

01 March 2021 6,729 2 View

What is Flat Lens Antenna?

28 February 2021 5,433 3 View

Does the property of GFP affect a fusion protein's localization?

Hello, I am planning to insert GOI between CaMV 35 promoter and mGFP in pCambia1302 to produce a fusion protein and see subcellular localization of the protein. But the vector says it's membrane...

15 February 2021 4,353 3 View

Is there a way to use waveguide ports for circular antenna design in CST?

Hi, whenever i use circular array i get this error "Waveguide ports must be aligned with Cartesian coordinate planes for the transient solver" Does anyone use circular array with waveguide ports?...

09 February 2021 3,609 8 View

How to model in HFSS or FEKO Free Space Material Characterization?

I am having trouble setting up this problem in HFSS or FEKO. In HFSS, I've tried both FEM and FEBI-IE solvers. With FEKO, I've tried it's MoM solver and default settings. I am would like model...

09 February 2021 375 2 View

Design parameters of L1 frequency Helix antenna?

Could I please get the guidance on Helix antenna operated from 1.5 - 1.8 GHz. I am designing in hfss and not able to cover 1.5 GHz. Could I get papers or suggestions on numbers I use to cover this...

02 February 2021 622 7 View

How to annotate list of gene names using Bash/R?

I have a list of gene names from deep sequencing from a constructed CRISPR knockout library. I was hoping to write a script to annotate all the gene names with a quick description of product...

27 January 2021 8,035 1 View

VSWR is shooting to 2.1 or even 2.3 in UHF dipole antenna, why?

So, I have a design, two dipoles working at UHF and VHF. We fed using a diplexer. I am having difficulties with the testing using network analyzer. VHF passes but UHF, specially at 400 MHZ, the...

26 January 2021 8,743 8 View

Can I simulate Ferrite in HFSS?

I have a design with 2 dipoles working at different frequencies joined in one system and separated by Ferrite. I think, Ferrite was used to minimize the interference between 2 antennas as much as...

25 January 2021 5,918 3 View

Testing of Antennas?

So, I came across, where antennas are being tested in a building ( a plant), where all sorts of big equipment are around and of course the ceiling. lot of multipath which can affect the...

21 January 2021 9,437 3 View