PhD Bio renewable energy research topic?

I am having challenge in picking a research topic that focuses on bio-renewable energy probably because a lot of feedstocks and methods have been research on. I would like suggestions on topic...

27 October 2020 9,898 2 View

How to Separate saturated FFA from Unsaturated FFA?

Starting from soybean oil, how can only unsaturated free fatty acid be separated from the saturated free fatty acid in the Oil? The purpose of this is to synthesis Alkyd resin with just only the...

11 October 2020 5,149 3 View

How to syntheses Alkyd resin with bright colour from dark brown rubber seed oil?

All of the alkyd sample from rubber seed oil I have synthesized is always black in colour, such colour is not good for the production of white oil paint. I need help on what to do to achieve...

10 October 2020 9,860 1 View

Developments in South african Family law?

16 June 2020 3,683 3 View

What would be an appropriate parent-report tool for measuring circumscribed interests in young children with autism?

I'm looking to get an idea of the intensity of circumscribed interests for young children (3-6 years) with autism. Does anyone know of an appropriate parent questionnaire that can be used to...

14 January 2019 7,013 3 View

In gas-liquid-liquid STR, how is turbulence modified and what is the impact on drag felt by the gas bubbles?

In the CFD prediction of gas hold up in gas-liquid STR, it is necessary to take into account the observation that turbulence increases the effective drag felt by gas bubbles thereby reducing their...

17 June 2018 3,014 2 View

Grid size vs bubble size in Euler-Euler simulation of gas-liquid flows in stirred tank reactors?

In the simulation of stirred tank reactors, it is necessary to finely resolve the region near the impeller so as to adequately capture turbulence properties such as the energy dissipation rate....

07 February 2018 9,687 2 View

What is the optimum time for transfection PEI system?

I am transfection 293 cells for viral packaging. Will it be a problem if I change media 6 hrs post transfection. Using the PEI system.

26 October 2017 1,650 2 View

In ELISA, why does the IgG standard only bind when I coat plate with anti IgG,.,.but does not bind with my protein of interest.?

I have ran an elisa assay with one side coated with anti igg and one side coated with SEA protein,.,.i put standads in both sides,.but only the side coated with anti igg showed to have working...

16 December 2014 4,993 2 View

How can I prevent mold and yeast contamination of cell cultures?

26 November 2014 1,049 16 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

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

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 is the state of the drug inside solid lipid nanoparticles (SLNs)?

I am a little confuse with the mechanism of solid lipid nanoparticles (SLNs). The main point of encapsulating drugs into SLNs is because some drugs have low solubility in water. Therefore, SLNs...

01 March 2021 3,703 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