ABAQUS CFD discontinued?

Greetings, since ABAQUS CFD is discontinued in 2017 and future releases, how do you recommend to model fluid flow through a fracture under confining stress? Are there any ABAQUS packages that can...

12 June 2019 1,307 5 View

Parametrizing paclitaxol with CHARMM force field for molecular dynamics?

Hi, I'm trying to parametrize paclitaxol with CHARMM general forcefield 36 but I get the error " 4-membered ether ring not known. " Also, parametrizing the ligand with swissparm is not a good idea...

14 November 2017 8,717 3 View

What is the Best Program or technique for Immunohistochemistry (IHC) images analysis ?

04 May 2017 5,689 5 View

Can anyone help with this PSFgen error with VMD?

I'm trying to use the automatic PSFgen with VMD (via the software) and when I try to guess and split chains I get these errors: (for every pdb I try) >Unable to open file...

28 June 2015 513 4 View

How do I deal with unconnected regions in my Abaqus model?

Hi all, I have a problem in defining contact. There is a 3D composite wall model . I have used Surface to Surface contact. I receive these errors: 1-There are 3 unconnected regions in the model....

23 February 2015 2,352 22 View

Does anyone know what the difference is between IC 50 and EC 50 in the extract antioxidant tests?

DPPH, phenol, Total antioxidant, FRAP.

28 December 2014 3,259 15 View

Does anyone isolate and identify bacteria or fungi work as biodegradation or degradation, bioremediation for pesticides?

06 July 2014 679 7 View

Who would like to collaborate with me in the field of food flavoring and food antioxidants?

Who can cooperate with me in the field of food flavoring and food antioxidants?

11 December 2012 6,964 39 View

Cooperation

01 January 1970 288 0 View

Can i make collaborate with you for investigation about the bio-activity of essential oils?

can i make collaborate with you for investigation about the bio-activity of essential oils?

01 January 1970 1,628 6 View

Charmm/GROMACS Residue 'ZN' not found in residue topology database?

I am trying to do some MD simulations of a protein with zinc ions. I am trying to use a charmm forcefield (I have tried 2017 and 2021) and Gromacs. I get an error when doing pdb2gmx Residue 'ZN'...

12 February 2021 9,367 2 View

Which is the best gene editing tool among TALENs, ZFNs, CRISPR and HENs?

Since two decades we came across many tools to edit the desired gene and genome viz., clustered regularly interspaced short palindromic repeats (CRISPR)-CRISPR-associated protein 9 (Cas9), (2)...

27 December 2020 7,667 10 View

Why peaks are shifted in XRD anlysis ?

I have synthesized zinc oxide nanoparticles by physical method (sputtering) direct interaction of plasma with zinc target and it is done in atmosphere. The sample were prepared at different...

18 December 2020 10,010 6 View

How to know if Zinc Oxide is coated on the glass substrates?

Hello all I have prepared Zinc Oxide nanoparticles using sol gel synthesis. I tried to coat the ITO and glass substrates with the ZnO nanoparticles ( dispersed in ethanol). But I am not sure if...

08 December 2020 3,692 8 View

Why band gap energy of cobalt ferrites is increased with increased in zinc(dopinng element) concentration?

In most of cases band gap energy of cobalt ferrites is decreased with increase in Zinc concentration that is hold to brass model. But when energy band gape is increases with increased...

03 December 2020 2,439 3 View

Why does zinc chloride salt powder melt at 50 degrees?

I have a question about zinc chloride salt powder. When I put zinc chloride powder in an oven at a temperature of 50 degrees to dry it (because it may absorb moisture), after about an hour, the...

26 November 2020 3,751 3 View

How should I prepare solutions of divalent metals at neutral pH?

Hello, I would like to prepare metal solutions of 50 mM Mg, Zn, Ca, and Cu (separately) from their chloride salts, to study protein-metal-ion interaction. For this reason, I would prefer that it...

25 November 2020 1,924 11 View

How to create a metal binding curve for a metalloprotein using prism?

hello, I need to create a binding curve to measure the affinity of my enzyme to its zinc cofactor, to determine the Kd value. I'm using prism (graphpad) and there are a lot of options under the...

14 November 2020 2,120 3 View

Which PEIE to use?

Hello all Thanks for answering my previous questions. I am making perovskite LED and intend to use PEIE on zinc oxide layer as ETL. But I am not sure what version of PEIE to us. There is the one...

08 November 2020 5,710 3 View

How to pack empty column with zinc powder?

How do you pack empty column with zinc powder? This is for the Vitamin K1 analysis using HPLC.

26 October 2020 3,904 3 View