How can I avoid clumping of TiO2 rod-like particles in the water meniscus?

I have rutile TiO2 grown on Si rods(100 microns long) with Ni bulb on one end of the cylindrical rod. They are supposed to float on the surface of the water but they tend to clump. How can I...

05 November 2020 9,068 2 View

Can you recommend a polymer which has viscosity as low as water or somewhere in that range?

I want to embed some metallic particles in a polymer (like PDMS which is very viscous for my purpose) by coating a glass slide with it, drop-casting the particles on it, and then subjecting it to...

26 September 2020 5,454 4 View

Why drones are pushed out of hive by Apis mellifera wokers during dearth period ?

Reasons are likely shortage of food stores or avoiding infestation by varooa mites... But i m looking for published literature for specific reasons as well

12 October 2019 5,225 2 View

Anyone familiar with MANET's changing sink implementation in ns2?

In MANETs, there are towers for a particular region and if we move out of range of a particular tower while moving we get connected to another tower. How to implement similar scenario in ns2 if a...

13 March 2015 1,790 2 View

Can I create surface mesh on cylinderical solid body with sweep method?

I have a 3D problem of cylinders and I would like to create a structured mesh around it using ANSYS workbench. Can I do structured mesh on the surface of solid cylinder only? Please suggest what...

05 February 2015 964 1 View

What are some useful methods & tools for finding relevant biomarkers for projects?

With the growing number of biomarkers regularly discovered, going through clinical trials and more slowly translating into the clinic, what options are available to shortlist and find biomarkers?...

26 May 2014 1,260 2 View

Can anyone recommend a protocol for ion pair reverse phase hplc?

I am looking for a protocol for ion pair reverse phase hplc using Luna C18(2) column for estimation of intracellular nucleotide precursors (e.g. UTP, UDP, ATP, AMP etc.). The major concern is that...

09 March 2014 7,821 4 View

Is there any method for quantification/estimation of NAD/NADH using colorimetric method?

I know one kit but I am looking preferentially for some colorimetric analysis or quantification using fluorescence spectroscopy. Help regarding any of the methods would be appreciated.

19 January 2014 926 2 View

What is the approximate range of concentration of NAD/NADH in bacterial samples?

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02 January 2014 4,349 1 View

Adding reactions to already existing mfa model - can anyone help?

I need to add reactions to an already existing set of reactions used for metabolic flux analysis for a pathway. While doing that I am getting all random and unrealistic values for fluxes. What...

01 January 2014 8,275 4 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

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View

Can we distinguish the type of free fluid inside the pelvic and abdominal cavities whether blood or serous fluid using the ultrasound?

during ultrasound examination of acute abdomen, sometimes we see free fluid , can we know the type of fluid ,whether blood or not , using ultrasound only? if yes , what are the sonographic...

01 March 2021 7,476 4 View

What is the difference between genotype and haplotype data in the ped format?

Hi everybody In the ped format for genotype, alleles of any SNP are represented by two columns (one for each allele, separated by a space). Is a column sufficient for the haplotype to...

27 February 2021 1,965 1 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