How to perform Gaussian optimization for a polymeric structure?

I am trying to perform Gaussian optimization of a polymeric structure with 250 atoms. It is made up of only C and H atoms with several aromatic phenyl ring interlinked by C=C. Every time I am...

04 January 2021 9,616 2 View

Can I calculate discharge of streams/ watersheds in GIS without field data?

I am required to do a project where I have to calculate discharge of streams/ watersheds in a high altitude area with extremely treacherous terrain. Will it be possible to achieve this objective...

27 December 2020 9,101 5 View

If one publishes in a journal with impact factor >1.4 and which is not included in NAAS list of journals, will the paper be equally valued by ICAR?

I understand the difference between NAAS score and Impact Factor but is it okay to publish in a non-NAAS, high IF journal? How will it be valued in ICAR interviews and related recruitments?

10 September 2020 7,575 3 View

How can I perform sensitivity analysis using R?

I have below model: X = A*B Where A = a list of values with Lognormal distribution (size = 13) and B = another list of values with Lognormal distribution (size = 13) How can I perform 1st...

05 July 2020 1,963 1 View

We have some proteomics data from 2017 and 2018 for which the raw files are missing, but we have the processed raw data. Is the data publishable?

We are missing some mass-spec raw files from 2017 and 2018 when deposition of raw files were not mandatory. Since most of the journals now require raw file availability through ProteomeXchange,...

14 June 2020 6,064 1 View

Why second stage juveniles are used for DNA extraction from nematode for identification purpose? Can I use female or male for the same purpose?

I am working on rice root knot nematode. For identification purpose mostly second stage juveniles are used. I wonder why females or males are not used commonly for the same purpose? I am using...

26 March 2020 7,419 3 View

Is there any alternative cheaper TaqMan universal master mix available in the market other than Thermo with similar sensitivity?

I am looking for a cheaper TagMan master mix for qPCR. I use FAM labeled primers for gene expression, does anyone have any suggestions

17 March 2020 1,105 2 View

What is the effect of Bejan number on heat transfer applications?

In our case the Bejan number decreases with the increase of mass flow rate or Reynolds number of the multiphase fluids through a packed bed. However, if mass flow rate increases Nusselt number,...

27 December 2019 6,088 3 View

Is range of the induced vector measure of a Riemann-Pettis integrable function relatively compact in X?

A function $f\in X^{[a, b]}$ is said to be Riemann-Pettis integrable if $x^* f$ is Riemann integrable for each $x^*\in X^*$ and if for each interval $I\subset [a, b]$, there is a vector in $x_I\in...

27 December 2019 7,532 9 View

Higher or lower values of local entropy generation rate is desirable for the better heat transport?

Local entropy generation rate (comes from the 2nd law of thermodynamics) should be higher or lower for a heat transfer device for its better heat transport performance?

22 December 2019 5,338 3 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

Glass fiber content in a gypsum board ?

Any idea on how to get the volumic ratio of glass fiber in a gypsum board ? Thank you for your help !

01 March 2021 2,501 3 View

What is the density for pva electrospining?

I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...

28 February 2021 298 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