Extracting Stiffness Matrix From LS-Dyna?

Hello, I am actually trying to optimize an armour plate for now. For this purpose, I need the stiffness matrix of the plate. While I can write a Matlab code to compute this it will be hard to...

02 November 2020 7,213 3 View

HX temp1 out as a function of flow rate1 in?

Trying to derive a transfer function for a cross flow tube and fin HX (liquid to air, tube is air side & hot side). Temperature control feedback loop, temp sensor for feedback and valve for...

23 August 2020 1,738 3 View

Can the use of NVivo software work in tandem with participatory action research (PAR)?

If you have experience of combining the above-mentioned two approaches, how did it go? Did their purposes contradict each other? Did you introduce the research participants to certain features of...

04 April 2020 3,371 7 View

Can I use the solvent peak area to correct the sample volume among the injection?

I am using GC FID to analyze fatty acid methyl ester from fish oil. I don't have automatic sample injection so I find out that the peak areas of solvent (hexane) are different from one to another...

02 April 2020 3,708 3 View

ATP evoked calcium response in skin fibroblasts: no response?

23 March 2020 4,854 2 View

How can I compare compressive strength from crushing concrete cube specimens to strength of in-field reinforced concrete structures?

1. In general, a lot of literature is available on compressive strength of cube or cylinder specimens. However, in practice, reinforced concrete is used in the field, especially for large...

29 October 2019 1,665 11 View

With amperometric Ab biosensors.How do we ensure that the Potential change is not due to interaction of other biomolecules with electrode?

In case of an amperometric antibody based biosensor where we use graphene as an electrode is it possible that additional impedance is created due to other biomolecules that have the capacity to...

14 February 2018 142 2 View

Which tool can you recommend to for dynamic user session identification?

Hello, I have raw web log file which I intend to create user sessions based on their access time. Instead of using a fixed time-out value, I chose to consider a dynamic time-out value. Can anyone...

02 October 2017 2,497 4 View

Please can any one suggest me how to connect two seperateley optimized molecular fragments into one in gaussian 09?

16 July 2017 1,677 5 View

What happens in the body upon natural infection?

When infectious virus enters the body by the so called portal of entry it may: 1. Replicate in susceptible cells 2. Behave as a foreign antigen (and/or antigen mix). Which cells are upmost...

16 April 2017 5,799 3 View

In Molecular Dynamics Simulation, how do I make changes to the force field according to my protein?

Hi In Molecular Dynamics Simulation, how do I make changes to the force field according to my protein? I got this error in the add-ion stage: Fatal error "./ amber99sb-ildn-HHH.ff / force...

01 March 2021 8,747 4 View

How to get rid of somebody pretending to be the author of a publication?

One of the publication I co-authored has the author's name in abbreviation. Then, somebody whose nothing to do with that paper acquired it as her work. To whom in this RG shall I ask for a hand,...

27 February 2021 4,206 4 View

What is the exact mechanism of the antimicrobial effect of local anesthetics?

The antimicrobial effect of local anesthetics has been known for more than 50 years, but it still seems to have an unclear mechanism of action. which bacteria? which concentration? etc etc. ....

27 February 2021 4,450 2 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

Any interests in participating to an experiment in space?

Hello, The UN Office of Outer Space Affairs has a program called access to space for all that enables institutions to have hands on expertise related to access to space. There are three elements...

22 February 2021 7,980 3 View

How do I add a udf to Ansys fluent and does it need to be compiled before hand ?

I have a Define_CG_Motion udf written in c where do I add it to my Ansys fluent project and does it need to be compiled before that?

21 February 2021 9,347 3 View

How to include additional force field in GROMACS?

I have a cellulose model system that is best described by the GLYCAM06 force field according to the literature. However, the set of force fields included in the GROMACS package doesn't include the...

20 February 2021 3,309 3 View

I want to simulate a system containing protein and heavy metals; which force field is most reliable for this purpose?

The protein I want to simulate has multiple heavy metals. I wanted to know which force-field I should use with GROMACS to achieve this. Most importantly, do the latest updates in the force-field...

16 February 2021 2,420 1 View

How to obtain parameters to run a simulation for benzene using CHARMM forcefield in GROMACS?

I have been reading this paper Soft Matter, 2017, 13, 1904 and in this paper, they simulate benzene in GROMACS using CHARMM. They mention that they performed simulations of benzene using the...

15 February 2021 5,561 3 View

Gromacs force field and water model recommended for protein hydrophobic study?

Dear All, I received a comment from reviewer about asking me selection of force field and water model. I choose OPLS-AAL and 3-point water model. They mentioned the combination of OPLS-AAL and SPC...

13 February 2021 1,364 3 View