While performing DFT studies of some hetro compound in different solvents, unusual results are obtained in case of methanol. what could be the reason?

DFT Study of some heterocyclic based compound is being done in solvents of different polarity. It was observed that the potential energy barrier in methanol comes out to be exceptionally high....

15 October 2020 9,303 5 View

Can I use split basis set system in Gaussian 09 for Gold with other atoms than gold modelled at PM3 level of theory?

Can I use split basis set system in Gaussian09 for Gold with other atoms than gold modelled at PM3 level of theory? I have a system which has C, N, O, H, and Au. I want to model C,N,H and O using...

01 September 2020 7,415 4 View

What are some strategies to block primary amine surfaces in immunoassays without using any protein based blockers?

We use a primary amine surface to bind our antibodies. Thereafter we use BSA and other protein blockers for blocking. The results are not really great, and vary quite a bit on repeats. We wanted...

26 April 2020 3,101 1 View

How to find the data of a missing channel in EEG?

I don't have the data from central EEG electrodes (Fz, Cz, Pz). But data is available from other locations like F3, F4, F7, F8, FC5, FC6 etc. how can i find the data from central locations

26 December 2019 455 6 View

Why are there very few health devices based on electrochemical sensors or other simple assay technologies?

Electrochemical sensors have an inherent advantage for being simple, cheap (glucometers), especially for nucleic acid assays. Yet there are very few health devices in the market for point of care...

22 December 2019 2,599 3 View

Anybody using Ketamine in humans?

Does any body have any data on use of Ketamine infusions in human subjects for any reason? I am looking for data on response and adverse effects related with the dose of Ketamine and duration of...

19 June 2019 7,333 2 View

What are some good methods (other than Plasma/Ozone/UV treament) for generation of reactive molecules before using APTES for coating in microchannels?

We do not have a system for oxygen plasma, corona discharge or ozone in our lab. We wanted to create reactive surface for our immunoassay on PDMS, such that it can bind to APTES. We have been...

28 April 2019 9,680 3 View

What would be the best coating buffer for covalent coating of TSH antibody (IEF Range: 5.8-6.9) on a functionalised PMMA surface?

We are optimizing the assay parameters for our TSH immunoassay. We had been using a 7.4 pH PBS buffer for antibody coating so far, but now want to evaluate if changing the pH of the coating buffer...

29 July 2018 1,144 2 View

Which is a better method for protein immobilization in a PDMS microchannel - 1. APTES and Glutaraldehyde based binding or 2. Protein mediated binding?

The first method is silanization of PDMS surface with 50% v/v in ethanol followed by treatment with Glutaraldehyde which presents a site for antibody binding. In the second method BSA is passively...

04 April 2018 319 4 View

Can anybody provide literature on horizontal cloud database partitioning with data mining?

I want to pursue my research work on database partitioning for scalable transactions in cloud storage.

19 February 2018 3,177 3 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

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 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

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 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

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