If opposite charges attract each other, then why do neutrons and protons bind with each other, whereas electrons surround them in an atom?

According to science, like charges repel each other and opposite charges attract each other. But if you observe the structure of an atom, neutrons(neutral), and protons(positive) bind tightly with...

23 November 2020 8,881 7 View

What are the effects of chemical fertilizers on human health ?

Can any fertilizer causes cancer ?

06 September 2020 8,217 11 View

How can one determine the lifetime of a compound if quantum yield is known?

I determined the quantum yield of my compound from fluorescence instrument. So can i determine the total lifetime of my compound from this data?

19 August 2020 521 1 View

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04 July 2020 9,111 0 View

How can i ensure the complete oxidation of graphite before quenching the oxidation process by H2O2?

I am following KMnO4 -H2SO4 reaction media for the synthesis of graphene oxide(GO) by an improved process.

04 June 2020 508 3 View

Can anyone help me to know whether band gap of a semiconductor can be changed by loading dye sensitizer or not?

1- n-type semiconductor has an absorption spectra 2-Dye has an absorption spectra 3- Semiconductor+ Dye has an absorption spectra 4- Can I calculate the band gap of of SC, Dye and SC+Dye using...

27 March 2020 4,222 4 View

What is a multi-label classification and how to use it on classifying text documents?

I want to know how multi-label classification work in detail. At the same time, how does the confusion matrix for multi-label classification is constructed? How does the performance measures such...

28 December 2019 8,065 3 View

What are the Model fit parameters for multigroup analysis in AMOS?

I have used SEM with AMOS for my data for hypothesis testing and the model parameters came out good. I wanted to conduct a multigroup analysis with the same sample by categorizing them into two...

16 December 2019 7,453 3 View

Can I use XBridge C18 ( 3x150mm, 3.5 um) column in a Aquity UPLC system for method development?

I have a UPLC system and XBridge C18 ( 3x150mm, 3.5 um). I am running short of time and cant procure a UPLC compatible column for the time being.

15 December 2019 8,433 12 View

How many different origin of replication (ori) sequences can I have in a plasmid?

Multiple ori sequences pertaining to different hosts are usually present in a plasmid. But how many different ones can I have, without causing problems? If problems do get created, what kind of...

25 November 2019 400 2 View

Is there any effective FEM solver to perform simulation of balloon inflation with large deformation (e.g. 300% strain)?

Hi! Thank you for your time, attention, and support. I am currently using FEM solver Abaqus to perform a set of balloon inflation simulations, trying to understand the deformation shape, stress,...

14 February 2021 2,524 4 View

Coupled hydric and mechanical equation COMSOL?

hello i am trying to study the mechanical deformation due to the humidity on a 3d volume formed of 2 phases. my equation are dw/dt =grad(Dm*div(w)) and the mecanical is sigma=E*beta*nabla(w)....

27 January 2021 5,201 1 View

Just face a Comsol issue dealing with magnetically hyperelastic material?

Hello all, I am just newly doing a simulation to test the deformation status of a magnetized rubber-like material, which is in-compressible, under a shifting magnetic field. Try to find the...

22 January 2021 7,427 2 View

Why is Abaqus showing me the deformed and undeformed shape at the same time?

17 January 2021 8,952 3 View

How can I export text file that include node location for Ansys 2020?

Hi, I am currently simulating pipe using modal analysis. How can I export a text file that includes node location for Ansys 2020? Currenlty if I export the total deformation text file it only...

10 January 2021 2,427 2 View

I would like. How they can be simulated the deformational processes of valvular aortic stents??

We have a projet about TAVI

22 December 2020 7,729 1 View

Is there any relationship/correaltion between 1) elastic modulus and adhesion or 2) elastic modulus and density of solid material or polymers?

21 December 2020 1,853 3 View

How to model linear-elastic large deformation of 1D Uniaxial stress in ABAQUS?

Dear researchers, how to model linear-elastic large deformation of 1D Uniaxial stress in ABAQUS? How does the abaqus distinguish between the 1d uniaxial stress and strain analysis? Thanks in advance.

20 December 2020 370 2 View

How to change material in ANSYS & perform brittle deformation ?

I am currently working on a model for fracture generation due to pressure applied in ANSYS. When I am working with structural steel material it is showing only folding not any fracture initiation...

16 December 2020 3,826 3 View

Explain the strain determined using directly the tensile machine test or the video extensometer ?

Dear Researchers, I would like to know the logical margin between the strain of a polymer in the tensile test determined through the traverse (the value from the machine itself) or using a video...

12 December 2020 3,636 4 View