In which case meta-heuristics algorithms cannot minimize the network error?

Hello, I am working on hybrid neural network. I have combined ANN with two different evolutionnary algorithms to build a prediction model of 6 inputs and one output with one hidden layer of 7...

18 January 2021 7,144 3 View

Can you suggest me please some Satellite Precipitation Products (SPP) ?

I would like to download precipitation data from satellite precipitation products, is it possible please to suggest me the most frequently products that are used and recommended for hydrological...

02 March 2020 2,870 5 View

Question about The porosity mesure using the ethanol method ?

14 January 2020 4,469 2 View

Does the SDS block the catalytic sites existing on the Iron doped graphene ?

hello evryone , in fact i'm working with Iron doped graphene as a catalyst for oxygene reduction , and to disperse it i use SDS and i want to know if it blocks my catalitic sites or not ? Can S.o...

14 February 2018 4,621 2 View

Hello every one , can someone tell me PLZ if we need to use concentration above or below the CMC to obtain a better Graphene /sds dispersion ?

Also i want to know if the quality of graphene /SDS dispersion is affected by the Graphene /sds ratio or only by the SDS concentration. Thank you.

14 November 2017 7,975 3 View

How can I calculate the maximum solubility of GO using UV-Vis spectroscopy?

http://www.sciencedirect.com/science/article/pii/S0021979714003397

18 May 2017 547 3 View

How to identify a peroxisome in microalga?

We have observed with confocal microscopy some free radical rich vesicles (DCF) in lichen phycobionts (Trebouxioid microalga) and we would like to confirm whether they are peroxisomes or not. Can...

24 April 2013 1,030 1 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

What is involved in morphological changes of SEM images of a substance?

In the sem analysis of CaCO3 nanaoparticles, the morphology images showed spherical shaped particles but the proposed morphology for these type of nanoparticles is trigonal. I prepared the...

01 March 2021 1,960 4 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

What are the new 2D nanomaterials were used for Silver nanoparticles stabilization?

In the stabilization of AgNPs are vital in current research interest. However, some of the 2D nano-materials like graphene oxide, MoS2, etc... previously used to stabilize it. But still they shown...

01 March 2021 2,207 3 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