I have made an water-in-oil-in-water double emulsion and I want to measure the size of the microspheres using the zeta sizer, how should I measure it?

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How do we decide BSA percentage in our buffer solution?

Hi all, I am trying to test my polymer stability in biological medium. I know how to make 1% /5% etc of BSA in buffer but I am not sure how do we actually decide this percentage volume. Is there...

05 January 2021 649 2 View

Prevent contamination of solution in oven?

Hi all, I am trying to test stability of my electrode immersed in solution. I intent to keep them in oven for 3 weeks as to represent accelerate ageing. However, my worry is that the solution...

28 October 2020 8,351 2 View

Original DECLUE python/java/c++ implementation?

Anybody working on DENCLUE/improvements? I need to know about any "working" implementation of simple original DENCLUE algorithm.

25 October 2020 3,471 2 View

Is there an implementation of original DENCLUE available?

Does anyone know of a WORKING implementation of the original DENCLUE density based clustering algorithm, and NOT its extensions? I have explored a few from github but they ain't working.Moreover,...

01 September 2020 8,917 1 View

How to run a long run cointegration with I(0) as dependent variables?

i'm currently working on currency misalignment , i have 3 variables the productivity differential and the NFA, as independent variables and REER as dependent variable, but my REER is unfortunately...

01 January 2020 9,004 7 View

Direction in Brent's Minimization of a Scalar?

Hi there, I am trying Netlab for Machine Learning in Matlab. Here i want to call the linemin function which uses Brent's minimization method. The documentation says linemin(F, PT, DIR, FPT,...

10 March 2018 747 1 View

Do the d orbitals of Zinc and Cadmium involve in bonding with ligands?

Is there any example which has the involvement of d orbital of Zn and Cd with ligands to make bonding? Under which condition d orbitals of Zn and Cd are chemically active and make bonding? Do the...

04 May 2017 8,656 14 View

How dipole moment of H2O molecule and polarizing effect of the OH saturate polarizability of surrounding atoms in response to light wave field?

Why does dipole moment of water molecule and polarizing effect produced by hydroxyl (OH) group saturate the polarizability of surrounding atoms in response to a light wave field? So the non linear...

25 October 2016 3,943 2 View

Polymer composites suddenly solidifies?

I am making polymer composite by solvent mixing method. When I am trying to add filler solution in polymer solution it quickly get solidified. How to make them then uinform? It doesn't give time...

03 March 2021 7,540 4 View

How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 View

How do I determine the degree of polymerization of PEG 400 based on NMR integration?

Hello, I am working on the photocatalytic degradation of PEG 400. I would like to know if it's possible to determine the degree on polymerization based on NMR integration, or by the MW of the...

02 March 2021 6,186 3 View

How to polymerize TEOS?

I want to polymerize TEOS on a surface. I know that NH4OH is a preferred catalyst and an alcoholic solvent should be used .But I can not find certain amounts of each material to use. Does any one...

02 March 2021 1,404 6 View

How to remove DCU and HOBT from my reaction?

I am doing a acid and a chiral amino alcohol reaction using DCC and HOBT in DCM or THF? Can anyone suggest me how to remove DCU and HOBT from a reaction mixture??

28 February 2021 2,153 1 View

Can polymer concentrations be calculated based on the number average molecular weight?

Hello, I spin-cast two different polymers onto wafers and measure their height as a function of initial concentration. For polymer A, I have the weight-average molecular weight (Mw) as well as...

28 February 2021 7,882 2 View

POlymer+DMSO solution and moisture??

What could be the reason of moisture at the sides of Vial when I am preparing my polmyer+DMSO solution for membrane fabrication? What etiquettes I am possibly missing here?

28 February 2021 6,516 5 View

How the wettability of rock sample can be changed by ageing in pure hydrocarbon oils only?

I want to do wettability analysis of hydrocarbon oil (octane)/rock/surfactant solution system. but to do the analysis first I have to make rock surface oil-wet. Since hydrocarbon oil does not have...

27 February 2021 5,383 3 View

How to reduce residual stresses in MD simulation?

I am working on a preparation of representative polymeric structures of some popular polymers, such as polyimide or PTFE for MD simulation, during which a single nitrogen or oxygen atom will be...

24 February 2021 8,105 3 View

What is the suitable range of Sulfur content and Viscosity of Heavy fluid Oil that used in Kiln?

What is the disadvantages of high sulfur content to the ceramic burning process? and what is the effect of outranged viscosity?

24 February 2021 8,219 2 View