Is it justified to compare the free energy change of two reactions and conclude one is more favourable than the other?

Suppose we consider the binding of a ligand L to a metal M, M+L=ML and M+2L=ML2 . We compute the Gibbs free energy change for two reaction using DFT. But can we compare this two free energies to...

12 January 2021 5,893 4 View

How to calculate van der Waals radius theoretically?

I am trying to calculate van der Waals radius for silver atoms and ions. Could anyone explain the steps required to perform accurate calculations.

03 August 2020 2,574 3 View

How to align large plasmids (20Kb+) in Mac Vector?

I was trying to align 3 plasmids each around 20Kb in Mac Vector. I used the "Align to ref." tab followed by adding the sequences and then aligned them. However only a portion of each sequence is...

03 February 2020 2,635 1 View

How to do overlap PCR?

Hi I am trying to join two linear 1.2 kb fragments with overlaps. I read a protocol which says at least 1/2 of the PCR mix has to be the equimolar concentrations of the fragment. Why is so much...

30 May 2019 9,234 2 View

Is it possible to choose a site for setting a well using only remote sensing techniques and data ?

If I have only Microwave and Optical remotely sensed data, is it possible to choose the site for availability of ground water for set a pump or well so that it will reduce the chances of fail...

05 December 2018 3,372 13 View

How to create checkpoint file in molecular dynamics simulation?

Basically I want to save coordinates and momentum of atoms after n time step so that I can restart my calculation in case of an error or exceeding wall time. My MD code is in Fortran.

19 June 2018 8,262 5 View

What are the different approaches for seperate few layer graphene from graphite?

31 August 2017 1,378 4 View

Availability of Sugarcane yellow leaf virus antibody/antiserum from any private firm?

Dear all...is there any information regarding availability of Sugarcane yellow leaf virus antibody/antiserum. previously i use to procure from AC, Diagnostics, USA but now they have discontinued...

24 January 2017 4,333 3 View

Can we solve electrochemical field equations in comsol for electrochemical cell modelling?

required for ec cell modelling

03 June 2016 7,198 2 View

Is there any device which can control load current than the sanction capacity?

Is there any device in electrical engineering which has the capability to release current from the utility side instead of absorbing current from the load side so that consumer will never draw...

10 February 2016 165 5 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

Can linear DNA be used as template for site-directed mutagenesis?

Is it possible to induce site-directed substitution mutation by quick-change method on linear dsDNA? or it has to be cloned in some vector? If yes, should it be treated with the Dpn1 enzyme...

03 March 2021 401 4 View

LOAD DISPLACEMENT CURVES Stiffness increasing in ANSYS non linear analysis. HOW CAN I CORRECT IT?

Hi. I am doing non linear FE analysis using a new material beam under flexural 2 point loading using ANSYS. I have defined a bilinear material model. The solution has converged. In results I am...

01 March 2021 9,911 3 View

PUC19 as a transfer plasmid for lentiviral delivery?

Hello, Is it possible to use pUC19 as a transfer vector to be packed in using the second generation viral particles packaging system( pMD2.G; psPAX2 plasmids)? As far as I understand it there is...

28 February 2021 4,868 2 View

Can impedance of antenna be less than 50 ohms?

I am simulating helix antenna in hfss, right now, giving excitation with 50 ohms port. When I see the results of Z parameter (real). It shows lower than 50 ohms. Do not understand, if it can be...

27 February 2021 4,218 7 View

Should we reduce the standard unit of length to 0.31951540592 meter ?

The reasoning behind this question is to align the ratios of the proton potential in energy per charge to the speed of light in distance per time. As these two dimensions appear to be related,...

27 February 2021 947 7 View

Why am I getting 'Infinity' and 'NaN' in my mixed-mode energy release values?

Hi everyone, I am currently running a mixed-mode simulation of a DCB using a user-defined cohesive zone model (UEL), however, the results I am getting don't make sense. I used the same UEL for...

24 February 2021 4,157 1 View

Is is possible to pole with corona poling pellets of the sample material instead of thin films?

As it is highly probable that pellets will have a higher degree of air gaps and voids than thin films, is it possible to pole the samples with corona poling nevertheless? Or is there the...

24 February 2021 1,349 1 View

Why does the sum of reaction forces not match the force component of a Free Body Cut in Abaqus?

I am using Abaqus to simulate a plate with in-plane loading. The boundary conditions allow the right edge to move up and down, the displacements on the left edge are fixed. There is no rotation...

23 February 2021 711 3 View

The most suitable method to calculate the stress intensity factor in the presence of contact between the crack lips?

I'm trying to study cracked structures under a compressive load taking into account contact between the crack lips. I would like to know if the method of extrapolation by displacement remains...

21 February 2021 8,694 4 View