How can identify element number(or index) in ABAQUS scripting instead of using mask?

Dear all I want to specify random material to elements. for doing this first of all I want to create sets to elements then specify the materials tho them. to create sets in script we should...

05 September 2020 6,679 6 View

When to use Rox/No-Rox in qPCR instruments?

We know that passive reference dye/ROX can help reduce variations of fluorescent values in samples. When utilizing the Rotor Gene-Q for the real-time PCR experiment, usually, the SYBR Green...

29 August 2020 10,010 5 View

Is there a way to calculate energies for all residues from a pdb?

CHARMM GUI online does a protein-protein interaction where you can measure the interaction energy of one chain with all the others. Is there a way to do this for each residue? Basically I want to...

29 July 2020 8,851 3 View

How can I improve my protein purification with Qiagen protocol-Ni-NTA column?

Hi, I purified a protein (about 28KD) via the following steps: 1- Firstly, I used buffer A native(Qiagen)-NaH2PO4,NACL,Immidazol,ph8 2-then after centrifuging and separating my pellet , I added...

13 May 2020 1,673 6 View

How can I digest my recombinant plasmid with xho1 and hind3 enzyms?

Hi, I have tried to digest my recombinant plasmid( PeGFP plasmid 4700 bp and fragment 750 bp) with the following protocol: 1-template= 3 (micro) xho1 =1.5 Hind3=2 buffer=3 H2O=20.5 1 hour in...

13 May 2020 5,153 3 View

In an optical diffraction (single slit experiment) we found no photons in dark fringes that should interfere destructively, how this is possible?

we did a very simple experiment of optical diffraction (single slit experiment) with a laser diode and observed dark-bright fringes on the plane of diffraction experiment (details of experiment...

13 March 2020 3,198 3 View

Which book is better to study the mechanical engineering design course?

Which book is better to study the mechanical engineering design course? What is your suggestion about a reference to teach the students?

12 March 2020 5,889 9 View

How can i model & simulate stress distribution at coating-substrate interface with different interface texture?

saying texture i mean topography.

12 March 2020 8,161 3 View

What kind of ceramic and metal are proper to make a FGM?

As you know, FGMs usually include metal and ceramic. Also, These materials have been used in high temperature environments. Based on the references, there are few temperature dependent materials...

23 February 2020 6,807 4 View

Spatial Prediction of Categorical variables with ANN model in R environment?

I would like to predict soil classes with artificial neural network (ANN) in the R environment. I train my model with neuralnet package. When using the predict function, I will only get the...

15 February 2020 4,020 3 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View