What is the procedure to determine the permeability of concrete?

can anyone help me in this, it will help me with my research work

01 March 2021 834 3 View

Please help in identification of this insect?

This insect is minute in size around 1 mm and not clearly visible with naked eye.

22 February 2021 5,907 11 View

For acid treated montmorillonite clays what will be the result of surface area?

The organo montmorillonite nanoclays modified with octadecylamine were used for the experiment. After acid treatment, the surface area will be increase. However, in my experiment, the surface area...

10 February 2021 1,581 3 View

How to plot the significance level using line or dot pattern over a raster data plot in R usign base plot function?

After plotting the raster data using the plot() function in 'R'. How can we plot the other layer overlayed with dot/line pattern in place of color fill as shown in the picture...

06 January 2021 5,865 4 View

How to calculate thermal stress in cylinder if water is flowing inside the cylinder?

How to calculate thermal stress in stainless steel cylinder if water is flowing inside the cylinder?

14 October 2020 905 2 View

Can I add my research work in my profile "Solar Energy Assisted Synthesis Of Zinc Oxide Nanoflowers"?

Want to add my research work in my profile "Solar Energy Assisted Synthesis Of Zinc Oxide Nanoflowers"?

12 October 2020 9,511 2 View

In most of perovskite solar cell SCAPS simulation, Why does the value of donar density used to keep zero?

Perovskite is an Intrinsic semiconductor which comprised equal no.of hole and electrons concestration under thermal equilibrium condition. However in most of the perovskite solar cell SCAPS...

30 September 2020 1,023 5 View

The ratio of hypocholesterolemic/hypercholesterolemic (h/H) fatty acids?

The following equation is generally used for the calculations of the ratio of hypocholesterolemic /hypercholesterolemic (h/H) fatty acids, or h/H fatty acids index (Santos-Silva et al. 2002;...

24 September 2020 9,939 5 View

Could anybody tell me what is the electronic affinity and charge carrier mobility of the ZnSSe semiconductor?

ZnS+ZnSe = ZnSSe alloy, or Even methods of how to calculate these parameters are welcomed.

23 September 2020 4,990 3 View

For assessment of the bird diversity, is there any rules such as the survey should be carried out for this number of days per month or not?

I carried out bird survey twice a month ( at interval of 15 days) for 8 months period following same transect line and point count stations. Is there any hard and fast rule or standard procedure...

13 September 2020 348 1 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

How to calculate average trend in maximum annual NDVI from MODIS?

I am wanting to calculate the average trend in maximum annual NDVI in Iceland from 2010-2020 using MODIS MYD13Q1 V6. How would I do this? I have currently inserted the NDVI bands from the MODIS...

02 March 2021 752 2 View

Why does two different bioinformatics tools for the same proteins show different subcellular localizations?

During a computational analysis, I found that for a protein of a plant, two different subcellular localizations are seen using CELLO and WoLF PSORT. For example, in CELLO, it identified the...

01 March 2021 6,729 2 View

What is the most suitable server for predicting protein structures in bacteria?

I have used the i-Tasser several times, however it has been unavailable for several days. I tried the swiss-model, but the output was not very pleasant due to the model used. Is there any other...

28 February 2021 4,521 3 View