If the microalgae experience stress through transportation. What would be the best course of action to avoid it from becoming contaminated or killed?

I am currently doing an experiment in my faculty lab and I need living micro-algae to be transported from other countries. The samples will be done in Morocco and Spain and they will be sent to...

08 September 2020 4,424 2 View

Can anyone suggest a recipe to deposit thin films of TiO2 on glass substrates using sputtering?

I need to deposit Titanium dioxide (TiO2) on a glass substrate using sputtering, any suggestions for a recipe that can get a uniform coating please

03 September 2020 5,232 5 View

What is the effect of the large scale of behavior particle in a magnetic field?

As it is known there is a magnetic field in large scale universe, so the particle undergoes a magnetic field will be different in case of expanding universe or static one as it will be in the...

13 June 2020 6,258 3 View

Why do I need to calibrate the spectrometer connected to an optical microscope?

I am taking some measurements using a spectrometer connected to a microscope. My aim is to know the spectral position of the resonant peak. As I know, I need to calibrate the spectrometer for...

02 July 2019 8,043 2 View

I need help for implement 3d deployment optimizes in wireless sensor networks in omnet++ or NS3?

in 3d environment the wireless sensor networks can't coverage the area like we want , in my studies i want to optimize the deployment of the sensors for gain the number of sensors , please help me...

18 March 2018 9,276 1 View

On which window was made the fast Fourier transformation because the main frequency is not very precise?

concerning now comparing the CSD to the noise power can you explain to me why should I do this because from what I got from the cyclostationnary spectrum sensor that it is based on the correlation...

20 October 2017 5,278 2 View

Whet is the relationship between the signal measurement noise and the variation in signal distance?

01 June 2016 4,538 3 View

How to choice some trees adapted to water deficiency is difficult in arid lands ? Was the adaptation more interest than genetic expression ?

04 February 2016 6,184 3 View

Can anyone help with a problem in Qst3?

I want ask about the QST3. I make the run and the message Lnk1e in /usr/local/gaussian//g09/l103.exe I used opt=CalcAll and tried Opt=CalcFC both give me the same message.

11 May 2014 2,965 3 View

Chlorinated organic formation in odor control scrubbers using hypochlorite?

I'm involved in a study of odor control technologies for municipal wastewater treatment plant. One of the control options involves a chemical 2-stage (acid/alkaline) packed bed scrubber. The...

03 March 2021 3,661 2 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

Ester cleavage conditions?

Hi all, I need to cleave the ester in Ethyl 2-amino-1H-imidazole-5-carboxylate to make the carboxylic acid and retrieve the product from solution to use in downstream applications of linking to...

01 March 2021 8,766 3 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

What is the most common number of epitopes in an multi-epitope Vaccine?

hi everyone, I'm interested in the field of vaccine design specifically multi-epitope cancer vaccines , I want to know if there is a minimum and maximum number of epitopes we could use in a...

27 February 2021 3,882 3 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

Why is NH4OH added in heavy metals limit test?

The limit test I'm referring to is USP method II. In this procedure you need to dropwise add 6N of NH4OH to the sample until it the pH is alkali. After that you need to dilute and add HOAc until...

23 February 2021 2,049 3 View

Is it efficient to do liquid biopsy to investigate the gene expressions of the tumor?

To do liquid biopsy and look for specific gene expressions there are so many published papers. Thera are different protocols and procedures used to isolate circulating cell free RNA or mRNA from...

23 February 2021 7,326 5 View

Is this the write procedure for acid digestion of soil for heavy metal analysis using AAS?

How to do acid digestion of soil sample with 3:1 aquaregia in an open vessel?

23 February 2021 3,053 7 View

What is the biochemistry of acidic solvents for phenolics extraction in strawberry?

I am using the Folin-Ciocalteu method for analysis of total phenolic content in ripe strawberries. I've read several protocol that suggest a methanol/H2O/formic acid (80:19:1) extraction solution....

22 February 2021 6,560 3 View