What is the best geophysical machine or device for detecting groundwater?

what is the best geophysical machine or device for detecting groundwater? Are there any machine that can detect the depth and the type of water? do I have to buy one machine or more than one to...

26 January 2021 6,149 15 View

What would be best solvent for polyamides instead of formic acid?

I would like to use solution mixing technique for polyamide and graphene composites. Can I use THF/DMAc/DMSO/DMF? If, so what would be temperature and how much time it may take to dissolve into...

18 January 2021 5,800 3 View

Filtration of graphene oxide?

What is the filtration procedure/filter paper has been used to wash the particle from aqueous solution of hydrogen peroxide followed by HCl aqueous solution if improved hummers has been used ?

22 August 2020 3,054 2 View

Why Eviews dont allow me to run heteroskedasticity test ?

Dear all, Hello, I would like to ask a question about heteroskedasticity test using Eviews 11. Actually, after having the results of my estimations using fixed effect model for paned data (for 2...

09 May 2020 8,213 6 View

I want to ask about biodegradable material which decrease gelling temperature to 34 c ?

Hi i formulate polymeric nano crystal using F127 and F68 by different ratio . these form gel at 38 c i want to decrease gelling temperature to 34 c. i need to add material to decrease gelling...

19 July 2018 3,081 3 View

Power needed to fully charge a car battery?

22 October 2016 4,800 3 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

Which reagent is best among 'Dimethylglyoxime" and "Dithiothreitol" for spectroscopic determination of Nickel ?

What I think is Dithiothreitol. As it is water-soluble and does not form a precipitate. But, the thing is it contains sulphur which is quite hazardous to aquatic animals.

01 March 2021 8,374 4 View

No title

23 February 2021 4,014 3 View

Is that possible to do an impedance measurement without FRA module?

One of my colleagues said, "the impedance you can measure with the three electrodes and with the specific sequence varying the frequency" Is it possible to configure the potenciostat without the...

21 February 2021 418 2 View

Is ANSYS Fluent good for simulation of a three phase reactor(stusy of its hydrodynamics or mass transfer...)?

Hello everybody, I would like to simulate a three phase reactor and study its hydrodynamics. I would like to know which type of software is better? I have a good command of ANSYS Fluent and I am...

10 February 2021 4,303 3 View

How to apply graphene oxide on an gold electrode?

Dear Fellows, now it is the time to push graphene applications further in terms of easy and low cost production surroundings. Thus I recently dived in the materia and I am facing tons of papers,...

02 February 2021 6,284 2 View

How to choose the electrolyte for (electrochemical impedance spectroscopy) EIS ?

Hi, I am working on a multi cationic material that has Li in it. I wish to measure the conductivity of my sample. We have a 3 electrode system with Ag/AgCl as a ref, platinum, and glassy carbon...

29 January 2021 405 2 View

Is it possible to prepare clay minerals by mixing pure oxides of required elements? What would be theoretical difficulties with it?

Practically this is not at all necessary. But theoretically, would hydrous/hydrothermal synthesis be enough (like mix 1 mole alumina gel and 4 mole silica gel and gently heat) or would it require...

26 January 2021 6,403 3 View

What should be the current and voltage for nickel coating of around 15 micron for steel specimen and also the bath composition?

I need the complete setup information.

21 January 2021 6,455 4 View

What happens in the salt bridge of Hg/HgO electrode?

My Hg/HgO electrode was used for EIS test in 4M NaOH solution. I found something in the salt bridge. After that, my EIS results found the noise at a low frequency (tested in a faraday cage)....

16 January 2021 1,900 1 View