What creates a variable; what are the necessary preconditions, or a priori's, from which we can deduce the existence and description of variability?

This is worse asked as "how do we know variability exists". A variable is an intuitive concept, although it's full technical description is not necessary for a primary / elementary school child to...

06 July 2019 5,802 5 View

Is Peer-Replication a better goal orientation than Peer-Review iff papers aimed for the reader to replicate the experiment?

Peer-Review and Peer-Replication seem like different avenues. In one we have citations and references and recommendations and acknowledgements or dedications. In the other we have copy-edits,...

06 July 2019 8,421 2 View

Any idea on how to measure the differential of the imaginary motion of the catamaran under the influence of the ride control?

Imaginary motion is often noticeable while half-asleep, or sleep deprived, or under the influence. However, most vision-systems (cameras and video-recorders) and distance-measurements are...

01 January 1970 4,029 1 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

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

What are the application of Fixed points thoery in Chemistry.?

It is said that fixed point theory has lot of applications not in the field of mathematics only but also in various areas. So I am looking for applications in Chemistry only..

26 February 2021 3,533 1 View

Can I ask did any good platform or journals for learning the calcluation on the reference governors and command governor?

Recently I face some problems with the mathematical ( calculation) on the reference governor and command governor, so I need some help from you all to get which platform or journal can let me...

23 February 2021 7,746 2 View

Special issue on PLS-SEM in Mathematics. Are you interested?

21 February 2021 5,601 3 View

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

What are the dimensions by which the independent variable (big data) can be measured, Knowing We using the questionnaire instrument?

We have a research project consisting of three variables where big data is the independent variable. Some previous studies showed that Volume, Variety, Velocity and Veracity Are the dimensions...

21 February 2021 8,133 2 View

How can I obtain a sine function along a path with known equation?

I have a symmetric airfoil with known equation. Now a sine function passes along the airfoil equation like following figure. I want to find the sine function in (x,y) coordinate system.

17 February 2021 1,594 12 View

Does learning mathematics exclusively improve cognitive abilities?

Teaching Mathematics at school to all students is commonly justified by the opinion that it improves their problem-solving skills and "makes them smarter" (whichever measure is implied by this). I...

15 February 2021 7,391 7 View

What are the popular techniques for pre-processing measurement data in Smart Grid/Power System?

The data collected from various measurement devices often contains erroneous values - such as noise, missing values, etc. What are the popular techniques for pre-processing measurement data in...

14 February 2021 4,642 2 View