Determination of wavelength in Raw effluent?

Is there a procedure to determine the wavelength of an industrial untreated raw effluent using spectrophotmeter

24 February 2020 1,931 3 View

PEG-400 or PEG-4000 can be used as an alternative to PEG-1000 ?

I use PEG-1000 (poly ethylene glycol) in my synthesis process, but I only have PEG-400 and PEG-4000. So, what is an alternative to PEG-1000 ?

19 February 2020 2,142 3 View

Why is there an unrealistically low PM2.5 concentration estimated using WRF-Chem V3.9.1?

I am conducting experimental simulations to study the PM 2.5 concentration.I have tried several chemistry options ranging from RADM2 MADE/SORGAM to MOZCART aerosol chemistry. The simulation...

21 October 2019 8,154 4 View

What are all the possible reasons for Spontaneous symmetry breaking in a double quantum well system?

Dear frnds, From my point of view SSB is happening due to following reasons in double quantum wells. 1. Due to variational technique 2. symmetry in envelop function and...

19 October 2019 6,248 2 View

Can we consider hemagglutination assay for dengue virus as a quantitative method???

For a pure virus, HA can be considered as a way of representing their titre. even though it is cost effective and less labor intensive, it is less concerned. Kindly guide me in this matter.

04 July 2019 3,881 1 View

What is the significance of size dependent dielectric screening in optimizing excitonic properties?

Mott-Wannier excitons are formed in a semiconductor material as a result of light-matter interactions. However, their delocalizing properties inside the crystal induce screening effects in their...

10 February 2019 6,737 1 View

How do overcome the shortcoming of tetrahedral element while solving problems using FEM?

I am using this element in FEA. If we solve the problem in FEM what are the possible solutions

05 September 2018 3,984 3 View

What approach can be used to teach fraction concepts and the approach need to be based on constructivism theory?

Hi I need help for my thesis. My thesis is about teaching fraction concepts for primary pupils and I struggling to identify the appropriate constructivism learning approach.

17 June 2018 5,152 8 View

As a Nuclear Engineer how I can contribute in particle physics research at CERN?

I've a undergraduate in Physics

05 June 2016 969 4 View

Which software to use to draw ray tracing using coordinate transformation?

Hi, in optical transformation, I was trying to draw the transformed coordinate figures (for concentrator and cloak) as in doi:10.1016/j.photonics.2007.07.013,. I tried with comsol 4.4, I was able...

23 March 2016 8,460 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