What substance can I use for DIY recoating of a optical fiber?

During the process of inscription of FBG on the silica/glass optical fiber few centimeters of the fiber had to be stripped. Bare fiber is too fragile for mechanical measurements, so I thought...

10 August 2020 4,823 4 View

Are move probabilities used during MCTS procedure in AlphaGo Zero?

In AlphaGo Zero algorithm, the neural network returns a pair (p, v) consiting of a vector of move probabilities p and a scalar v indicating winning probability. The v is used for node evaluation...

06 June 2020 5,588 3 View

Can discretization method change non-observable system to became an observable one?

Is it theoretically possible, that after discretization by using Talyor Series Expansion, a non-observable nonlinear system will became an observable? It was proved, that used continuous model of...

15 May 2020 3,608 5 View

Did anyone here perform VPSC simulation by imposing stress?

I am trying to simulate the state of internal pressure in a tube using the boundary conditions: \sigma_{rr} = 0, \sigma{theta theta} = X, \sigma_{zz} = \sigma{theta theta}/2 in VPSC. I know how to...

21 November 2019 6,226 1 View

Did someone developed any analytical surface for the Berkovich indenter?

I need the analytical surface describing the geometry of the Berkovich indenter, taking into account the fact that the tip of the indenter is rounded with some radius. The modelling of the...

24 June 2019 4,607 4 View

What is the best animal model for testing the effectiveness of painkillers?

We have a substance that potentially reduces the sensation of pain. We want to study it on laboratory animals. We are looking for a way to measure pain in animals.

04 February 2019 6,146 4 View

Does anyone know a free microstructure generation algorithm?

Hello everyone, I would like to use some program to generate grain structure of a metal. Does anyone know any free code or program? The output data from this program wil be used for FEM...

01 June 2016 7,580 3 View

How reliable is texture measurement from the EBSD.comparing to texture obtained using the X-ray diffraction?

How reasonable is obtaining a polycrystal texture from the EBSD measurement comparing to the results obtained using the X-ray diffraction? Is the typical investigation area in EBSD smaller or bigger?

14 September 2015 1,615 9 View

What is the optimal buffer for DNase I?

I would like to use DNase I (from bovine pancreas, Roche) to get rid of DNA. Roche/Sigma does some recommendations (1 mg/ml enzyme, pH 7.0, Ca 0.12 mM, some Mg), but I did not find a comprehensive...

06 September 2015 9,806 4 View

Heat transfer coefficient depend on kind of fluid that take part in the heat exchange, but is it depend on kind of material that take part in process?

24 September 2014 9,175 23 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

What solvent can I used for Paal Knorr reaction between 6-amino hexanoic acid and 2.5 hexanedione?

I am try to make the Paal Knorr reaction between 2.5 hexnedione and 6-amino hexanoic acid, my problem is type of solvent to use, because 6-hexaminohexanoic acid is soluble in water but I am not...

02 March 2021 4,443 2 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 can extract ciprofloxacin hydrochloride disolve in water er to organic solvent such as dichloromethan or any other solvent?

I need a procedure to extract the ciprofloxacin hydrochloride from aqueous solution by using dichloromethane in detail,. I thank you very much.

01 March 2021 4,306 1 View

How to separate water from glycerol solvent in a solvent recovery vacuum distillation column?

I am currently doing my third year design project. I have been assigned to design a glycerol recovery column in vinyl acetate monomer production. The process unit before the recovery column is an...

01 March 2021 9,525 4 View

How to make fractions of chloroform extract of plant, using seperating funnel?

28 February 2021 8,466 2 View

Why am i not getting solid after reacting APTES with salicylaldehyde?

The reaction of APTES with salicylaldehyde in ethanol leads to the formation of imine compound yellow solid which is mention in literature, but I am not getting yellow solid I don't know why? when...

28 February 2021 2,955 2 View

can I treat waste water containing solvents and alcohol with electrocoagulation?

there are solvents and alcohol in the waste water of a factory that produces disinfectants. Increasing this waste water requires very serious operations. Can I treat this waste water with...

27 February 2021 2,609 3 View

How to replicate the well conditions of a crystal hit with 20%(w/v) isopropanol?

I had a crystal hit in a well with 0.1M HEPEs pH 7.5, 10%(w/v) PEG 4000, and 20%(w/v) isopropanol. Why is isopropanol in w/v here if it's just solvent? How do I recreate this well condition?

25 February 2021 9,761 1 View

How to increase solubility of Poly acrylic acid in Dioxane solvent?

I am working with Polyacrylic acid (100.000Da) and instead of water, I need to use another solvent (dioxane) to dissolve PAA. However, because of the high molecular weight, it's quite hard to...

25 February 2021 2,225 5 View