How to create suspended particles flow and simulate distribution in a chamber using CAD software?

Allow me first to apologize in advance for the long post. I have tried to keep it right-to-the-point as possible!. Objective To simulate suspension of solid particles using CAD software/create...

12 January 2021 6,389 2 View

How to pack empty column with zinc powder?

How do you pack empty column with zinc powder? This is for the Vitamin K1 analysis using HPLC.

26 October 2020 3,904 3 View

What is the suitable temperature to store Vit A, E, D sample extract extracted from milk powder?

I run the sample preparation using AOAC Vit A,E,D method, that require saponification, concentration , drying using nitrogen gas, reconstitute with methanol. Since the HPLC method development is...

23 October 2020 6,430 4 View

Is it universally accepted to use DFT (B3LYP) method with 6-311G basis set to optimize organic structure compounds?

I'm new in computational chemistry. I'm doing molecular docking on organic compounds towards enzyme. basically, I'm using B3LYP/6-311G to optimize all the ligand structure. Is it generally...

11 October 2020 3,273 13 View

How to generate charge to the metal in metalloenzyme e.g. MMP9 for molecular docking and MD simulation?

any suggestions to suitable forcefield or software e.g. charmm to solve this problem? Please describe the methods to do it

22 February 2020 8,201 2 View

Can I Quantify Corrosion In terms of its Mass only?

say, a corroded metal has a mass of 30g, after cleaning what's left is 25g of the remaining metal, thus is 5g of corrosion of any value? Thank you in advance.

21 February 2019 6,963 5 View

Problem in simulation of Microstrip patch Antenna based on Graphene in CST ?

I'm try to simulate Graphene 2-D Material in CST to design microstrip patch antenna, after complete the simulator the error message appear to mention that the graphene treated as a PEC. Is there...

15 January 2019 3,592 3 View

Reason for vortexes on bottom of BN PAGE gel?

Hi all, I have run BN PAGE twice so far and am seeing distortion of the bands at the bottom of the gel. I use a 4-15% precast gradient gel. I load 15-20 ul of sample in every other well and...

04 November 2018 7,131 2 View

Can I use the enzyme 6PGD Kit that purified from mice for determination the 6PGD in human?

Estimation of enzyme activity

14 August 2018 3,460 2 View

Any idea how to prepare coating with anti fouling effect/water proofing effect to be coated on polyethylene composite?

It is needed so that the PE composite capable to withstand the harsh ambient condition.

16 April 2018 9,462 2 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Guidelines for survey (question type) analysis?

Hi. Please tell me what guidelines should i need to follow for questionaries' type research work in India. It is not hospital based work, we are conduction basic institutional based qualitative...

03 March 2021 2,037 3 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View