What are the analysis tests that needed to be conducted during a pilot study stage if the instruments are used for the first time in new context?

Hi dear all, Actually, I have adapted high valid instruments from previous studies that have been published in developed country and currently I want to use it for first time in other region,...

18 August 2020 4,136 11 View

Increasing the sensitivity of GC?

I was calibrating GC on PAINO compound was using split mode 100:1 and 0.5 uL injection volume of diluted sample and it was more that enough for range of 0.001%(10ppm) and Higher concentration . i...

10 November 2019 2,425 1 View

What is the mobile phase that can I use for HPLC? Knowing that my starting material is Bromobenzene and the solvent is DMF?

What is the mobile phase that can I use for HPLC? Knowing that my starting material is Bromobenzene and the solvent is DMF and the expected product is carboxylic acid.

23 September 2018 2,877 3 View

What is the best method for extraction of dried purple carrots and hibiscus to give to rats?

20 April 2016 9,703 3 View

What is the preferable Molecular Dynamics Simulation software for proteins?

NAMD vs GROMACS

18 April 2016 889 12 View

If I collect time series data over sequence of years for budge I need to check the independent using SPSS I found it auto correlate?

If I collect time series data over sequence of years for budge I need to check the independent using SPSS I found it auto correlate?Durban-Watson =+0.89 SPSS on what I can do just run the model...

09 November 2015 7,895 8 View

Which kind of material properties for expansive soil or clays?

hi all, i am modeling a slope in abaqus, and i wonder add same material. which one is better Mohr coulomb or clay plasticity ? and where could i find the reference paper? thanks you. i will...

27 October 2015 9,273 3 View

Can someone help with excess increments in my UMAT code?

26 August 2015 6,064 5 View

What is the best procedure and condition to prepare hydrazide by reaction of ester and hydrazine?

any one that work before to prepare hydrazid by reaction of ester and hydrazine hydrate can help me that what is the best Procedure and condition to prepare hydrazid by reaction of ester and...

13 August 2015 1,978 29 View

How phD candidates can keep themselves motivated at high level during PhD journey and complete their phd on time?

Dear all RG members, As we know, PhD candidates face many obstacles during their studies such as (financial issues, psychological problems, family, work, and even academic issues and so on) which...

01 January 1970 4,963 30 View

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 View

Irradiation data for JAPAN?

Hi, Could you help me to get the latest (2019, 2020) solar resource data for a particular site in JAPAN? PV GIS and NSRDB data are not in reach to JAPAN, I'm looking for some other database for...

03 March 2021 961 3 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

Help request in CST microwave?

im working now on TPV solar cells and metamaterials and i realy need our help in CST microwave i have a tpv cell simulation and i want to extract particullarly the absorbtion of only the active...

02 March 2021 2,246 2 View

Anyone found any research papers on solar furnace design calculations (for solar concentration)?

I am thinking about working on solar furnace with heliostats that concentrate sunlight and heat molten salt, but currently no luck with research. Not a lot of papers based on the subject. (check...

01 March 2021 5,023 5 View

What is the indication of the absence of peaks in Methanol electrooxidation CV curves ?

I have several question regarding the MOR; hope anyone help me better understand. 1- in CV using (KOH+MEOH) what is the indication of absence of the redox peaks? shouldn't they exist as a sign...

28 February 2021 4,851 8 View

How to size battery banks?

I am designing a small grid connected solar PV power-plant. As the battery's capacity is specified in Ah and demand in kWh. What is the best way to size the battery bank? I have battery price in...

28 February 2021 1,638 3 View

How to design a boost converter for a mppt controller?

I have a doubt on how to select the inductor and capacitor value when I want to implement MPPT controller. This is because we always take a maximum output voltage and current but in this case, we...

28 February 2021 3,637 2 View

How to calculate Ligand-active site distance in a ligand-protein complex from MD simulation?

I have run a MD simulation of a ligand-protein complex in GROMACS using CHARMM forcefield. Reviewer has asked me to calculate Ligand-activesite distance and binding free energy of ligand with...

27 February 2021 4,703 1 View

Why do the air flow results vary totally when adding scalar in CFD ?

Dear All, We are using Autodesk cfd to calculate the air flow in a single sided naturally ventilated room, where air flow depends only on buoyancy due to temperature difference between inside and...

25 February 2021 9,602 4 View