What is the better software for approximation of 3D surface with equations?

I have a massive of x, y, z coordinates of 2D surface in 3D space, which builded in Ansys HFSS or AutoCAD. How can I get the analitical aproximation of this surface by formulas?

21 February 2021 3,444 7 View

Can anyone help find a good program on the PC (or site) to monitor astronomical situation in the solar system and the galaxy?

Good day!Tell me please PC software, allowing you to monitor the situation in astronomical solar system, galaxy.I have the phone programme Planetarium. Unfortunately I cannot find it for...

06 January 2016 5,439 8 View

Where can I read about typing atmospheric circulation in Europe?

Hello everyone.Tell me please fundamental works by typing of the atmospheric circulation in the European region. Dolia Vadym.

28 December 2015 5,340 7 View

How can be use the Modular design for Artificial Intelligence systems?

The one important principle to building difficult System of Systems is Modularity. I think that a modular approach and philosophy should be use to building of AI Systems as well. It can be a...

01 January 1970 5,074 6 View

The Physics of a True Noon Change?

Good morning to all. Happy New Year! Who can tell the physical process of changing the True Noon during the year? Sincerely, Vadym.

01 January 1970 7,139 1 View

AI as expert for Analytic hierarchy process

To continue the discussion started on https://www.researchgate.net/post/Co-authorship_are_machines_coming I suggest using Artificial Intelligence as an expert for Analytic hierarchy process. What...

01 January 1970 3,536 61 View

It is possible that Neural Network can give a better estimation of signal parameters than Cramer-Rao Lower Bound?

Some authors of publications wrote that Neural Networks can give a better estimation of signal parameters than Cramer-Rao Lower Bound. What is your opinion regarding these?

01 January 1970 1,467 3 View

Negative refractive index in rainbows and gravitational lenses

Why we don't see a negative refractive index in rainbows and gravitational lenses? I think that this effect can be, because nano- and microparticles of water and dast are similar to dielectric...

01 January 1970 6,832 11 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

What is the most Operating System (OS) which can be INSTALL on Tiny hard devices like Raspberry Pi (RPi) hardware ?

I'm targeting to deploy a mesh network and manually configure MANET routing protocols. I'm preparing scenarios, architectures, and hard devices needed to do that. Are there some step-by-step...

03 March 2021 1,931 5 View

What is your perception on using visual analysis or quantitative approaches to evaluate data from single-case research designs (n of 1 trials)?

Results of single-case research designs (i.e., n-of-1 trials) are often evaluated by visually inspecting the time-series graph and computing quantitative indices. A question our research team is...

03 March 2021 687 1 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

Irradiation data for JAPAN?

Hi, Could you help me to get the latest (2019, 2020) solar resource data for a particular site in JAPAN? PV GIS and NSRDB data are not in reach to JAPAN, I'm looking for some other database for...

03 March 2021 961 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

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View