How can ethanol (very small concentration) be separated from water?

# Food industry. Food industrial water contains small concentration of ethanol related to the water content. Is there a technique or procedure to separate or extract ethanol without using membrane...

03 April 2019 8,159 16 View

Preparation of Humic acid stock solution?

Dear All researchers, How much grams of Humic acid (crystallite powder) is required to prepared 2 mg/L in DI? Best regards Alaa El Din

04 May 2018 1,084 0 View

Which book do you recommend??

There are different books related to publish in high ranking journals, avoid plagiarism and how to paraphrase the cited sentences. Therefore, I need your help to suggest a name! Best regards Alaa...

04 May 2017 5,163 8 View

Is there any method or way that can be alternative to freeze drying of organic samples (powders)?

Please, I need any suggestions

07 August 2016 6,861 3 View

Can you explain the following graph obtained from UV spectra Lambda 35?? X axis is Wavelength nm and Y axis is absorbance.

07 August 2016 7,090 10 View

How can the theoretical C/O ratio be calculated?

As you know, we can get this value from XPS AND it will be the practical value. However, the calculation of the theoretical one can be done by which equations!!

06 July 2016 6,137 8 View

Why get I always fluctuations in the range 300-400 nm in UV spectra as shown below?

05 June 2016 2,295 6 View

Which type of Graphene Oxide should be purchased to prepare graphene?

There are a lot of different GO types in Sigma-Aldrich. Which criteria should one take into account?

04 May 2016 252 4 View

Can you help to know the oxidation methods for Graphite to get Graphene Oxide?

03 April 2016 4,341 7 View

What is the scientific basis behind''The first-order scattering of the E^2g phonon from sp^2 carbon"?

03 April 2016 7,463 0 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Anyone plz suggest relevant topic for research in image processing+Deep learning.?

I have selected brain tumor images ...but now found that already lots of research done n this topic.

03 March 2021 5,774 3 View

Can we block unwanted images during the x-ray prediction?

i am try to classify the x-ray images. During classification , can i block unwanted images (except x-ray image).

03 March 2021 7,100 1 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

I need to image mesoporous silica nanoparticles that are in ~100 nm size and do high resolution TEM to look at mesopores. what grids should I use?

Need to image mesoporous silica nanoparticles using the TEM. Also, need high resolution TEM images to see the mesoporous structure. Kindly suggest what kind of grids to use. Thanks, Shatadru

02 March 2021 1,787 2 View

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 View

No title

02 March 2021 3,060 3 View