Why Porphyrin is purple in color?

Porphyrin solid is purple in color, what factors are responsible for purple color of the porphyrin?

29 November 2020 199 2 View

Is there any website or online source to draw the architecture of the neural network ?

I have the details of the input, output, number of hidden nodes and number of hidden layers data. How can I draw the architecture of the neural network for my condition.

21 October 2020 6,648 1 View

How to model geosynthetics in stone column encasement (abaqus)?

I am using abaqus to model geosynthetic encased stone column (wished in-place). I am new to abaqus so how should I model geosynthetics in 3D and 2D (solid or shell or wire ) and can I get an idea...

17 September 2020 5,165 3 View

Is it possible to get the probable lattice structure of crystalline powder sample using miller indices (h, k, l values) and XRD data?

Hello everyone, presently, I am working on crystalline properties of some polymers with respect to their individual treatments using X-Ray Diffraction (XRD). Is there any software which can give...

08 September 2020 1,223 5 View

How to increase the yield of extracellular DNA in extraction process from water samples?

I am using 1% CTAB for extracellular DNA extraction, followed by isopropanol precipitation, phenol chloroform extraction, ethanol precipitation and wash. How can I increase my yield?

02 March 2020 7,947 3 View

How to fix the Open cv module error?

I am working on image segmentation using python open cv package but couldn't able to work with it because of error indicating "ModuleNotFoundError: No module named 'cv2'" and the same error is...

02 February 2020 928 4 View

Is there a good Piezo1 antibody available commercially?

Can anyone suggest an antibody for Piezo1 that has been used in good publications for immunoflourescence stainings?

10 October 2019 9,995 1 View

How can I use sonication to get lysosomal membrane protein?

I am trying to standardise lysosomal enzymes assay. Since the enzyme is active inside the lysosome and is partially embedded in the lysosomal membrane, lysis of cells with lysosomal membrane is...

10 February 2019 7,653 2 View

I have completed my bachelor's in Electrical Engineering and I am looking forward to start learning more about smart grid .From where should I start.?

I want to learn about smart grid and simulating a smart grid network and also the data analytics used in smart grid network .

23 May 2018 6,165 3 View

Is fluorescence from boiled residues of sugars/oils/acids due to carbon quantum dots or some other fluorescent compounds?

I tried making carbon quantum dots by microwaving aqueous solutions of citric acid as a simple science outreach activity. I followed this literature precedent ( Milosavljevic, V., et al. J...

23 May 2018 950 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

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

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

What analysis to choose with a large neste dataset and clearly skewed or kurtotic distributions?

Hello! I have a dataset of n=3000 nested within 8 countries with approximately 200 or 400 responses in each country. I originally planned to perform multilevel modelling with 4 dependent variables...

02 March 2021 6,865 1 View

The procedure compute?

02 March 2021 5,204 3 View

Is there a powerful system for the security of the systems distributed on IoT systems?

Is there a powerful system for the security of the systems distributed on IoT systems?

02 March 2021 3,858 10 View

How to define and get results (stresses) for certain points of a model in abaqus, using python? When the size of the model changes?

I want to do a parameter study of a aixsymmetric cylinder in Abaqus. I want to create several jobs where I get the stresses for 3 different points in my model. These points are defined. I wrote a...

01 March 2021 10,078 1 View