What is the zeta potential value of deionised or distilled water?

I am getting zeta potential value of about -30 mV for distilled water obtained from a commercial supplier. What it means? What should be the zeta potential value of distilled water? How can I...

10 October 2017 2,791 19 View

Dear all, can anybody suggest me how to seperate phytoconstituents from alcoholic extract of plant material using column chromatography

I successively extracted a plant material with different solvents, among these alcoholic extract shown best activity, for this I did GC/MS analysis. further I would like to separate the...

09 August 2017 7,760 2 View

How to calculate refractive index from Uv visible spectrum?

send the link i.e formula

11 June 2017 6,371 10 View

Will the natural convection ( CFD simulation) problem within an enclosure converge thermally?.Because there is an external solar load as well?

I am solving the natural convection heat transfer problem within an enclosure with few heat generating components using Fluent.Around this enclosure,I have considered the fluid domain. To consider...

17 November 2016 6,131 5 View

Zeta potential for amine functionalized Nanoparticles?

What will be the sign of zeta potential for amine functionalized nanoparticles? The amines are neutral (not protonated). Due to the electron rich character of amine functional group shall I expect...

30 July 2016 9,866 4 View

Does anyone know about "Asymptote" Software and online learing?

25 June 2016 4,421 2 View

How to calculate refractive index of small size crystal??

24 June 2016 4,039 1 View

Is the zeta potential value valid for amino acid functionalized nanoparticles?

I have modified my carbon nanoparticle surface with amino acids. Now I would have both amine and acid functionalities on the surface of my nanoparticle. The measured zeta potential value is about...

31 December 2015 6,592 10 View

Why do I observe a downregulated gene in RNA-Seq that is upregulated in qPCR?

15 November 2015 4,108 4 View

Can anyone suggest literature on Regional Innovation Systems in solar energy in the Indian context?

26 March 2015 5,749 2 View

Why does blocking with my immunogenic peptide cause nuclear fluorescence in ICC?

Hi all, I am validating a polyclonal antibody raised against human ANT4, through WB and ICC. In most of my controls, the antibody shows very little off-target binding, but when I pre-incubate the...

03 March 2021 5,999 3 View

How two melting peaks in DSC of polypropylene can be merged into one crystallization peak?

The figure shows DSC cooling (blue) and 2nd heating (green) curves (step: 10 K/min) for a commercial sample supplied as Atactic Polypropylene (APP). The heating curve illustrates two major...

03 March 2021 5,857 3 View

Irradiation data for JAPAN?

Hi, Could you help me to get the latest (2019, 2020) solar resource data for a particular site in JAPAN? PV GIS and NSRDB data are not in reach to JAPAN, I'm looking for some other database for...

03 March 2021 961 3 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

Does Napabucasin soluble in dichloromethane and in ethanol?

I need to prepare a solution of Napabucasin (inhibitor of cancer cell stemness) in dichloromethane. The drug is expensive, so maybe somebody already tried to do it. If it is soluble, what is the...

02 March 2021 9,945 3 View

Help request in CST microwave?

im working now on TPV solar cells and metamaterials and i realy need our help in CST microwave i have a tpv cell simulation and i want to extract particullarly the absorbtion of only the active...

02 March 2021 2,246 2 View

Anyone found any research papers on solar furnace design calculations (for solar concentration)?

I am thinking about working on solar furnace with heliostats that concentrate sunlight and heat molten salt, but currently no luck with research. Not a lot of papers based on the subject. (check...

01 March 2021 5,023 5 View

How to size battery banks?

I am designing a small grid connected solar PV power-plant. As the battery's capacity is specified in Ah and demand in kWh. What is the best way to size the battery bank? I have battery price in...

28 February 2021 1,638 3 View

Dapi fluorescence protocol for colon cell lines ?

28 February 2021 2,534 2 View

How to design a boost converter for a mppt controller?

I have a doubt on how to select the inductor and capacitor value when I want to implement MPPT controller. This is because we always take a maximum output voltage and current but in this case, we...

28 February 2021 3,637 2 View