What is (response surface graph)?

For optimization of reaction conditions, most of the time we have several factors to take care of, like pH, temp, initial conc., ionic strength... etc. How we can express in a professional way our...

27 May 2020 3,150 3 View

For a hydrothermal autoclave, can we use a glass container instead of the teflon?

To increase the temperature of the autoclave higher than 160 or 200 C, we need thermally stable materials as the reaction container. So what kind of materials can be used??

17 May 2020 8,963 7 View

Can I use matlab deep learning toolbox for regression problems?

Hi everybody I want to use MATLAB deep learning toolbox to relate the activity (pIC50) of molecules to their molecular descriptors. Can I use convolutional neural network with a regression layer...

03 February 2020 1,874 6 View

How to determine the degree of similarity between two signals?

I'v been doing an investigation about detection of a specific signal and I need to determine that how a received signal resembles the reference signal. A primary approach to this problem is done...

06 November 2017 6,369 7 View

How we can apply FRP in Concrete beam with Abaqus?

Hello all, I want to modelling a Concrete Beam with ABAQUS, My intention is that first beam cracked and then the FRP, apply to beam and analysis continue. can you help me?

11 January 2017 8,962 6 View

How can we determine representative volume element length (Lrve) for concrete?

for periodic materials, determining Lrve is simple but for a non-homogeneous material such as concrete, it is not that simple. any advice such as methods, references, etc. would be appreciated.

04 November 2016 6,044 3 View

How can i do a meta-analysis of a subject in sport and physical education?

I want to learn about this type of research.

11 January 2014 9,954 3 View

The internal energy change for isothermal processes is zero. But for the vaporization of liquid (which is an isothermal process) it is not zero.

The internal energy change for isothermal processes is known to be equal to zero. But in the case of liquid vaporization (e.g. liquid water to steam) (boiling at constant temperature), the...

01 January 1970 7,917 4 View

Why some Cr(III) complexes have labile reactions ??

01 January 1970 7,787 7 View

How to analyze a particular region of my simulation box in GROMACS?

Hi, I am using GROMACS 5.1.4 to simulate water in contact with a surface. I am only interested to calculate some properties of water near the surface. Let's say at a distance of x nm from the...

03 March 2021 9,989 2 View

Can we distinguish the type of free fluid inside the pelvic and abdominal cavities whether blood or serous fluid using the ultrasound?

during ultrasound examination of acute abdomen, sometimes we see free fluid , can we know the type of fluid ,whether blood or not , using ultrasound only? if yes , what are the sonographic...

01 March 2021 7,476 4 View

How can I calculate the rdf of water molecules around 'Na' ions that are closest(adsorbed) to the nanoparticle(solute)?

Hi, I want to calculate the radial distribution function for water molecules around the Na+ ions adsorbed on the surface of a spherical nanoparticle using the gromacs trajectory dynamically? For...

28 February 2021 5,650 1 View

How to calculate Ligand-active site distance in a ligand-protein complex from MD simulation?

I have run a MD simulation of a ligand-protein complex in GROMACS using CHARMM forcefield. Reviewer has asked me to calculate Ligand-activesite distance and binding free energy of ligand with...

27 February 2021 4,703 1 View

How can I assign a velocity along one direction to CO2 molecules in a molecular dynamics simulation using GROMACS?

Dear all, I am trying to perform a MD simulation about the interaction between CO2 and a polymer. I create my model, solvate it and perform the NVT and NPT equilibration. Now I am not able to...

26 February 2021 10,014 3 View

How does GROMACS calculate the average structure of proteins?

I want to get a average structure from a pdb file containing multiple models. I used the command below: gmx cluster -f input.pdb -s topol.tpr -cutoff 20 -method gromos -av GROMACS...

25 February 2021 6,314 1 View

Is there an open source free software for text mining and sentiment analysis?

I am looking for a free software for text mining and sentiment analysis for my research on customer review mining (it involves calculating polarity of attributes,opinion oriented information...

25 February 2021 1,920 6 View

Which are the journals for free paper publication?

A bunch of flower for everybody. I would like to ask about the list of journals which we can publish our paper for free. Thanks in advance. Sincerely Walid

25 February 2021 9,790 3 View

Suggestions for occupational stress surveys?

I am currently writing a masters thesis on reasons for occupational stress in the early childhood classroom, and want to include a short survey assessing participants work-related stress levels. I...

24 February 2021 8,678 2 View

Is it efficient to do liquid biopsy to investigate the gene expressions of the tumor?

To do liquid biopsy and look for specific gene expressions there are so many published papers. Thera are different protocols and procedures used to isolate circulating cell free RNA or mRNA from...

23 February 2021 7,326 5 View