What is the difference between basic dye and cationic reactive dye?

The basic dye and cationic reactive dyes both have amino groups and are suitable for fabric having negative charge (anionic) surface. Want to understand what is the difference between two class...

06 July 2019 4,502 2 View

Why cationic dyes are not used for cotton?

Although Cotton is inherently anionic, cationic dyes are not used for reactive dyeing.Rather, common practice is cationisation of cotton followed by anionic dyeing.

02 March 2018 2,321 5 View

How can I carry out cleaning of wool fibre for taking SEM image?

If we have to take SEM image of single wool fibre, do we need to mount it on silicon wafer? Should the wafer along with the fiber be cleaned using acetone before taking SEM image? We have done...

07 August 2014 7,033 5 View

What are the methods used to determine the surface energy of a single fiber/yarn?

How can we determine the contact angle of a single fiber? Are other methods like gas chromatography suitable for surface energy determination?

04 May 2014 1,481 4 View

Is there any characterization instrument available for determining the coefficient of friction for a single fiber?

Please let me know the name of a company supplying an instrument for single fiber. Also need to understand the working principle for such instrument.

04 May 2014 6,222 8 View

Why is a molecular oxygen band not observed in an emission spectrum of air discharge?

In the literature for emission spectrum for air discharge only molecular nitrogen, atomic oxygen, and Nox formation is described. But absence of molecular oxygen in air discharge is not explained....

03 April 2014 8,918 20 View

How are the franck condon factor and the spontaneous emission probability for a vibrational transition related?

For determining the vibrational temperature of N2(C) state by Boltzmann plot method, the graph is plotted in two ways: 1) log (intensity* transition frequency4*franck condon factor) on y-axis and...

03 April 2014 4,944 5 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

Anyone plz suggest relevant topic for research in image processing+Deep learning.?

I have selected brain tumor images ...but now found that already lots of research done n this topic.

03 March 2021 5,774 3 View

Can we block unwanted images during the x-ray prediction?

i am try to classify the x-ray images. During classification , can i block unwanted images (except x-ray image).

03 March 2021 7,100 1 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

I need to image mesoporous silica nanoparticles that are in ~100 nm size and do high resolution TEM to look at mesopores. what grids should I use?

Need to image mesoporous silica nanoparticles using the TEM. Also, need high resolution TEM images to see the mesoporous structure. Kindly suggest what kind of grids to use. Thanks, Shatadru

02 March 2021 1,787 2 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