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

What is the optimal method to prepare a controlled porosity osmotic pump (CPOP) tablet for scanning electron microscopy?

In order to assess the shape and size of pores formed by dissolving the pore former in the semipermeable membrane structure, SEM images are needed. Cellulose acetate was used in the coating...

15 February 2021 6,135 3 View

How do I justify the use of fish scales to synthesize a nano filter?

Good day. I am doing a studu on the use of fish scales to create a nano filter. This is aimed at potentially solving the face mask problem brought about the pandemic. This is what I know so...

09 January 2021 8,907 5 View

Can we measure porosity of a composite by DSC (heat flow measurements)?

In the DSC conducted for A and B (image provided). B is a derivative of A. Can I conclude that the porosity of composite B is more than A, Since the heat flow is decreasing with increase in...

26 December 2020 9,104 3 View

How to find porosity of a sintered ceramic compact ?

I want to know the porosity of my sintered ceramic composite ? Please help me out

21 December 2020 4,343 6 View

How to change porosity on Ansys Fluent?

12 December 2020 4,612 3 View

Is there any technique to reduce carbonate precentage in bone sample (bovine hydroxyapatite)?

Dear colleagues, I am a researcher working with bovine hydroxyapatite. I want to reduce the percentage of carbonate on the sample. Is there any suggested techniques for this? I am measured the...

19 November 2020 3,828 3 View

What is the best method to sterilize hydroxyapatite nanoparticles?

Powder insoluble

08 November 2020 509 3 View

Effect of adsorbent porosity on efficiency of adsorbent recovery ?

Hi guys. Can anyone answer the following with citing the references? 1) Relationship between adsorbent porosity and adsorption/desorption rate? 2)Relationship between porosity and adsorbent...

31 October 2020 6,323 5 View

What binders should I use to prepare Hydroxyapatite pallets or discs from Hydroxyapatite powder?

I have synthesized HA powder and I want to make HA pallets from the synthesized powder. I have tried using a pallet press kit, however, the pallets disintegrate quickly. I think I should use some...

19 October 2020 3,919 3 View

How to calculate bulk density, porosity, and void ratio of soil?

If the particle diameter is 2 mm and the particle density is 2.5 g/cm, what is the bulk density, porosity, and void ratio of this soil? I had known that the formula to calculate them. The...

11 October 2020 3,466 3 View