What is the range for the Transformed Vegetation Index (TVI)?

Hello, I"ve been wondering if anyone knows of a reference that lists the range for TVI. I could reason from the formula that it should be from 0 to ~1.22 since the range for NDVI is between -1 and...

07 May 2020 416 4 View

Can you determining Inventory Model (Continous vs Periodic) based on material consumption historical data?

Hello fellow researchers. I want to have your insigth on the categorization of inventory model based on demand pattern data. i have 8 item in different consumption value class and of course...

24 February 2020 5,695 3 View

How can I calculate the thermal conductivity of liquids flowing inside the tube in shell-and-tube heat exchanger?

I carried out an experiment consist of shell-and-tube heat exchanger, and collect the temperature data.Then I calculated the overall heat transfer coefficient and heat transfer rate of both...

09 February 2019 5,670 20 View

Is the reaction rate constant, k(T), of a chemical reaction affected by the kind of a third inert species, under the constant temperature condition?

Is the reaction rate constant, k(T), of a molecular chemical reaction affected by the kind of a third inert species (CO2 or N2 for example) under the constant temperature condition ? The reaction...

17 November 2018 3,450 22 View

I am simulating methane - air combustion on Ansys Fluent. I use DO radiation model. I got all the residuals converged except radiation residual?

I am simulating methane - air combustion on Ansys Fluent. I use DO radiation model. I got all the residuals converged except radiation residual. The results look reasonable. The total heat...

24 December 2017 3,878 3 View

Solution is converged for my cold flow analysis (methane-air) on Fluent, but the results look nonphysical ?

I'm simulating a cold flow analysis (methane-air) on fluent, using species transport model. The model has around 5 millions meshes with tetrahedrons and swept bodies. I use "realizable k-epsilon"...

20 September 2017 2,944 5 View

Can you help me with a turbulent viscosity ratio problem?

I have a control volume as attached. Left is inlet, right is outlet, top is symmetry and bottom is axis (it is a 2d axisymmetric analysis). What you see is a vehicle and there is a piston-cylinder...

21 April 2014 7,304 11 View

Why is the vorticity vector perpendicular to the velocity vector? Is there any physical explanation?

By vector analysis, one can calculate that vorticity vector should be perpendicular to the velocity vector. But I wonder the physical reason why vorticity vector is perpendicular to the velocity...

16 April 2014 9,453 24 View

Could you advise a new analysis method for measuring oxidative stress?

We use different methods for measuring oxidative stress. But, I need a novel method, that has started being used recently. Any suggestions?

19 December 2013 2,849 4 View

Does anyone have any information regarding researching biomimetics of fish and sea creatures?

I am researching biomimetics of fish and sea creatures, especially their motion. Any paper, documentary, or piece of information would be useful for me. I am trying to understand the idea behind...

05 May 2013 7,323 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

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 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

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View