Does SVD reflect accurately the user ratings and movie classification?

A simple example is explored in attached pdf by building a matrix a with given user rating and movie claasification and weights , but we do not seem to recover our original data components , hence...

04 May 2019 9,783 4 View

Is it possible to estimate hotness of chile by visual inspection?

Often it is difficult to add the correct number of chiles in cooking so that required taste is obtained . Estimating the hotness ( Scoville Heat Unit ) would help in meeting targetted taste. It...

11 December 2018 8,441 6 View

How to design a basic introductory course in AI for Ug?

AI requires facility in Linear Algebra,ANN, Calculus ,Probability and RP(Bayesian rules), DSP, Image processing ,NLP and programming. What would be the bare essentials(foundation) from these...

10 November 2018 489 9 View

Are there smooth elegant functions which are aperiodic ?

Here is an excerpt from Schroedinger's "What is life?" Would be interesting to view this mathematically using smooth ordinary type functions ,which are not spliced and joined. Schroedinger...

05 June 2018 8,816 4 View

Will every closed curve have foci determined by some criteria?

We can think of the circle center as a "focus" of points of its circumference given by distance to center = constant. In case of an ellipse we have sum of distance from points on boundary to the...

01 February 2018 2,580 9 View

Are there mathematical functions to describe the shapes of various biological objects, especially anthills?

There seem to be a wide variety of shapes in the biological world . In 2d we have various shapes of leaves. In 3d we have anthills , trees , fruits and animals with different shapes. All of them...

01 February 2018 6,150 19 View

What is the intuition to construct link and cannot link projection matrix?

In Power system islanding Dimension reduction is obtained for the Lyapunov Matrix via link and do not link on generator nodes . It would be helpful if a numerical example giving a clear picture of...

05 June 2017 5,872 0 View

Does evolution imply a higher form of "consciousness" which is non biological?

31 December 2016 7,702 4 View

How can we explain impact of green and new ethical challenges to ug electrical engineers.?

05 June 2016 1,328 2 View

How do coconut trees get so much water up above the ground ?

It is interesting to observe coconut trees which transport water from the ground(?) to fairly large heights .What is the mechanism ? Can we replicate it artificially? .Why should it grow so tall...

04 May 2016 4,812 8 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

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 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

Has anyone used the Illumina ITS1 primer sets?

Hi everyone, Illumina provides a list of primers to amplify with high taxonomic coverage the ITS1 region for further fungal sequencing, but I cannot find the exact amount necessary of each...

25 February 2021 6,969 3 View

How do you mesh a thin solid in Fluent?

Hello, I have used the shell function on SpaceClaim to create thin solids for the model I am studying. These are contained within an enclosure for my study. I chose this approach as it avoids the...

24 February 2021 8,856 3 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

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

How can we assess applied digital skills and soft skills through online examinations during COVID-19 semester?

The final qualification assessment for major programs is a strict regimen that involves different stages - oral and written exams, final project viva, internal and external review. How are ICT...

16 February 2021 1,762 8 View