What are the analysis tests that needed to be conducted during a pilot study stage if the instruments are used for the first time in new context?

Hi dear all, Actually, I have adapted high valid instruments from previous studies that have been published in developed country and currently I want to use it for first time in other region,...

18 August 2020 4,136 11 View

What are the best materials for electrochemical CO2 reduction?

I want to know the criteria to select promising materials to srart research on electrochemical CO2 Reduction with examples from very recently studied materials.

07 December 2019 5,680 3 View

Increasing the sensitivity of GC?

I was calibrating GC on PAINO compound was using split mode 100:1 and 0.5 uL injection volume of diluted sample and it was more that enough for range of 0.001%(10ppm) and Higher concentration . i...

10 November 2019 2,425 1 View

What is the mobile phase that can I use for HPLC? Knowing that my starting material is Bromobenzene and the solvent is DMF?

What is the mobile phase that can I use for HPLC? Knowing that my starting material is Bromobenzene and the solvent is DMF and the expected product is carboxylic acid.

23 September 2018 2,877 3 View

What is the best method for extraction of dried purple carrots and hibiscus to give to rats?

20 April 2016 9,703 3 View

What is the preferable Molecular Dynamics Simulation software for proteins?

NAMD vs GROMACS

18 April 2016 889 12 View

If I collect time series data over sequence of years for budge I need to check the independent using SPSS I found it auto correlate?

If I collect time series data over sequence of years for budge I need to check the independent using SPSS I found it auto correlate?Durban-Watson =+0.89 SPSS on what I can do just run the model...

09 November 2015 7,895 8 View

Which kind of material properties for expansive soil or clays?

hi all, i am modeling a slope in abaqus, and i wonder add same material. which one is better Mohr coulomb or clay plasticity ? and where could i find the reference paper? thanks you. i will...

27 October 2015 9,273 3 View

Can someone help with excess increments in my UMAT code?

26 August 2015 6,064 5 View

What is the best procedure and condition to prepare hydrazide by reaction of ester and hydrazine?

any one that work before to prepare hydrazid by reaction of ester and hydrazine hydrate can help me that what is the best Procedure and condition to prepare hydrazid by reaction of ester and...

13 August 2015 1,978 29 View

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 View

Joint behaviour in Abaqus is not captured well?

I am working on roof joint and trying to simulate the behaviour in Abaqus. I am successful in running the model but the final graph does not follow the experimental curve in the negative direction...

01 March 2021 6,661 3 View

How to modify Johnson cook equation in ABAQUS?

I wanted to add an extra parameter to the existing Johnson cook equation in the ABAQUS simulation. How to add those extra parameters. Ref: A modified Johnson-Cook material model with strain...

28 February 2021 4,841 3 View

How can we simulate an hyperelastic-viscoelastic behavor with Ansys APDL?

I am working on modeling and simulation of biomecanical material behaviour, I have succeded on simulating skin using anisotropic hyperelastic material, on APDL and in our lab's finite element...

28 February 2021 552 3 View

How to find the right number of integration points in second order 3d finite elements?

I am familiar with finite element simulations and numerical schemes like the Gauss Legendre quadrature. I also know that the Gauss integration yields exact values for polynomials up to degree 2n-1...

27 February 2021 6,818 3 View

What could be the reason for not having further low chi square value (better agreement) in my refinement result?

I have tried every combination of parameter changes and after that i have a poor chi square value. I can't get it lower any further. I know there have been a lot of discussion about Rietveld...

26 February 2021 8,480 3 View

What is the best way to calculate the angles of twist for concrete columns subjected to torsional moment using finite element software?

In Finite element software like ANSYS , there is difficulty in obtaining direct results of twisting of concrete members because SOLID65 which is the unique element designed to represent concrete...

26 February 2021 3,806 2 View

Is this the write procedure for acid digestion of soil for heavy metal analysis using AAS?

How to do acid digestion of soil sample with 3:1 aquaregia in an open vessel?

23 February 2021 3,053 7 View

Fictitious Boundary Meshing Method (FBM) in Commercial FEA software?

Is it possible to implement FBM in a commercial FEA software package, such as FEMLAB, COMSOL, or open source software like Moose?

22 February 2021 2,968 1 View

How to build fluid structure interaction simulation for elastic ring squeeze film damper in COMSOL?

How to build fluid structure interaction simulation for elastic ring squeeze film damper in COMSOL?

22 February 2021 5,408 1 View