Why is the sum of the elements in a row in a Q matrix equal to zero?

When explaining substitution models, the substitutions are expressed as Q matrix. Why is the sum of the elements in a row zero?

28 February 2021 3,864 3 View

What is holding back the computing power of modern computers..?

The last decade witnessed a tremendous use of computational power for various applications such as deep learning, MD simulations, and astrophysics. Is quantum computers really going to take the...

31 December 2020 1,396 2 View

Can some body help me to figure out which General Climatic Model is suitable in case of Asia particularly Bhutan?

There are total of nine GCM from CIMP 6, and I am confused which model suits best for my study . I want to determine change in land suitibility with respect to 3 SSP, RCP 2.6, 4.5 And 8.5 for...

25 December 2020 8,606 2 View

How to simulate a new protocol in VANET Toolbox in MATLAB?

I've downloaded the VANET Toolbox in MATLAB, but there aren't any detailed documentation on how to use it. Can anyone please explain the step by step process in designing the simulation...

01 November 2020 7,262 2 View

Which simulator other than NetSim is easy to build VANET sims? How to implement a MAC protocol and analyse the throughput,transmissions?

I have an assignment where I have to implement a latest protocol in VANET and analyse the results. I have chosen the OCA-MAC a TDMA based MAC protocol. Which simulator is easiest to implement...

01 November 2020 518 3 View

How can I get started learning response surface methodology, and what are the pre-requisite knowledge needed?

How do I get started learning RSM? If you could provide text book names on the subject or links to free resources that will be greatly helpful. I also wanted to know what pre-requisite knowledge...

29 October 2020 4,241 3 View

Where to find Lennard Jones or EAM potential for Ti-6Al-4V alloy?

I am trying to perform a surface lapping process on LAMMPS molecular dynamics software for my final year undergraduate mechanical engineering project. I am having trouble finding the potentials...

04 October 2020 2,452 2 View

Can I use the same research instrument for collecting data from two different populations?

Can I use the same questionnaire to collect data from health as well educational sector employees to measure their level of job satisfaction ?

02 July 2020 7,480 1 View

I calculated SPEI drought index values using SPEI package in R Studio and now want to export those values to excel. Can anyone help me?

Being a beginner in coding I am unable to export my results from R to Excel. I calculated by SPEI drought index in R after watching some youtube videos but now I want to export them to Excel....

17 May 2020 2,777 2 View

Can anyone help me in this error in Unisim/Hysis? Why is the extraction column not converging?

I have used appropriate references for all the values and inputs that I have used for simulation. Please kindly help me out. I have been working through this for quite sometime. I used unisim for...

01 April 2020 773 2 View

What is involved in morphological changes of SEM images of a substance?

In the sem analysis of CaCO3 nanaoparticles, the morphology images showed spherical shaped particles but the proposed morphology for these type of nanoparticles is trigonal. I prepared the...

01 March 2021 1,960 4 View

How to address this issue in the analysis of Real-Time PCR results?

To dear Researchers, I was analyzing a series of concentration for estimation of Real-Time PCR efficiency. The concentration was 1:10. I used MS-excel to evaluate Slope. The result of slope was -8...

01 March 2021 8,683 4 View

Can I download BibExcel for MacOs?

Hi everyone, I would like to ask how I can download BibExcel software for MacOs? There are some links which are supported by Windows but I could not find it for Mac. or is there any other software...

01 March 2021 652 1 View

Anyone with some Transgenomic Wavemaker software? Seeking help from the chromatography community?

I am trying to seek out some Transgenomic Wavemaker software (happy to purchase a computer too) to operate a fraction collector. The only way to connect to the fraction collector so far is to...

23 February 2021 9,181 1 View

Best excel chart to compare algorithms' running time?

Hi I want to compare the running time of robotic path planning algorithms. The grid size is 8X8. I have 100 scenarios of start and goal positions.. Each scenario is run in three obstacles ratio...

22 February 2021 621 1 View

Can anyone help with an Accurate Diffuser Expansion Loss formula for rectangular shaped diffusers in turbulent flow regime?

I have tried Idelchik's Handbook of Hydraulic Resistance 4th Edition (2007 page 300) formulas and across some range the formulas are reported valid for, the law of conservation of energy is...

20 February 2021 2,504 1 View

How to open an old ".MTS" file containing spectroscopic data?

Hi supreme hive-mind of the internet, we have some old *.MTS files that are supposed to contain spectroscopic data, probably some coordinates and a long list of single line spectra. Basically,...

16 February 2021 9,385 2 View

Room Occupancy Calculation ?

15 February 2021 1,997 6 View

What are backpropagation formulas for residual neural networks?

14 February 2021 4,194 3 View

How to check if the PMF profile obtained from ABF simulation is correct?

I am doing ABF simulations to calculate ligand binding enegy. The PMF profile that I get using single long ABF simulation is attached as pmf_total.png. When I do this ABF calculation with 10...

10 February 2021 4,170 2 View