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

Which is the most efficient etching solution for nickel based alloys?

Which solution reveals the microstructure and features of nickel-based alloys?

02 March 2021 2,221 3 View

How can I selectively dry etch Ti on a polymer substrate?

24 February 2021 5,378 1 View

What is the best etching method for Mg-Ca alloy?

I have used Picral etchant (4.2 g Picric acid, 10 mL Acetic acid, 70 mL Ethanol, 10 mL distilled water) but it didn't work. Is there any alternative?

21 February 2021 2,558 5 View

How to modify micro-structure of Pure Copper which is available as a flat plate of 25 X 25 sq. cm?

Hi everyone, for a thesis project I have to modify the micro-structural properties of pure Cu flat plate of dimension 25 X 25 sq. cm . As I tried searching the available literature, I found a lot...

09 February 2021 5,090 3 View

What is the most efficient way to generate amorphous silica in LAMMPS?

I would like to generate multiple large samples of amorphous silica in LAMMPS. Currently I am generating it by beginning with a lattice of silicon and oxygen atoms and using a melting and...

28 January 2021 6,128 4 View

Is it possible to economically reuse the heat content of water vapour that is generated during quenching of continuous casting of steel?

A huge amount of water is evaporated to cool down and solidify the liquid metal strands coming out of bottom of CCM mould. The steam contains significant latent and sensible heat energy, besides...

26 January 2021 3,446 4 View

Is it possible to highly selective remove a fused silica template from PDMS by laser-induced backside wet etching (LIBWE) method?

Hi everyone I'm trying to pattern circular cross-section microfluidic channels in PDMS. The template is an optical fiber with an axially non-uniform diameter. To the best of my knowledge, there...

22 January 2021 2,352 2 View

Control in microstructure with growth inhibitor?

Dear researchers, I wish to understand the role of grain growth inhibitor in controlling the microstructure of the ceramic pellet. How it controls the growth? Also, I wish to know the grain...

15 January 2021 3,859 3 View

What is suitable etching resist coating for polished Titanium Grade 5 surface?

Currently we start a chemical etching project. This project involved etching a polished titanium grade 5 surface part. We facing a problem where by our etch resist coating peel off during etching...

15 January 2021 1,592 3 View

Which variables can be used to increase/decrease the grain size of czochralski-grown polycrystalline silicon?

Which variables (such as pull speed, melt temperature, annealing temperature/duration, cooling rate, etc.) affect the grain size of czochralski-grown polycrystalline silicon? In what direction...

10 January 2021 2,204 6 View