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Is there any algorithm for finding a minimal spanning path? Thanks.

A minimal spanning path in a graph is a path that contains all the vertices of a graph whose weight is the least among the spanning paths.

02 March 2016 6,300 4 View

Any international professional association for mathematics and mathematics education that I can be a member of?

I want to become a member of international professional organization for mathematicians and teachers. Any suggestion? I am a member of SEAMS. Thanks.

07 August 2015 6,933 2 View

Parental Math Anxiety, what can you say?

I came across this article in Yahoo! and I want to know your reaction on this. https://www.yahoo.com/parenting/how-parents-math-anxiety-can-affect-kids-126441992877.html Thanks

07 August 2015 7,506 0 View

I just came across Khan Academy, can you share your experience with KA?

I am planning to use Khan Academy as part of my teaching strategy. I would appreciate any comment, experience you want to share regarding Khan Academy. Thank you.

06 July 2015 790 3 View

It is true that a triangle has at least three sides. Can the same be said about squares?

Since a square has four sides, is it true that it has at least 3 sides?

06 July 2015 7,849 5 View

Would requiring students to write a reviewer for a quiz help improve the students performance in the exam?

If a student prepares a reviewer before a quiz, would that help him learn more and consequently improve his performance on the exam?

05 June 2015 3,693 9 View

I am doing a study on social media as a tool for teaching. Can you help me on this?

The attached survey is for mathematics teachers. I would appreciate it much if you could take some time to answer it. Thank you!

04 May 2015 8,687 8 View

Anyone familiar on cycle derivatives of graphs and materials regarding this?

If G is a graph, the cycle derivative of G is a graph G' whose vertices are the cordless cycles of G and that two vertices c1 and c2 are adjacent in G' iff they are cordless cycles in G sharing...

03 April 2015 3,188 2 View

What is the counting crossing number (CNN) algorithm?

CNN is an algorithm developed to count the crossing number of generalized petersen graphs.

02 March 2015 5,761 2 View

What is the relevance of social networking in teaching?

Social network like Facebook is very much in vogue these days. How do you think could this be of help to improve teaching and the relationship between teachers and their students? Do you use...

02 March 2015 8,485 5 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 View

How Can I bring as much common elements in steel as possible to calculate stable phase(s) in OpenCalphad?

As I was tweaking step-by-step OpenCalphad6 Macros step1.ocm involving phase and thermal property calculation of a High-speed steel, I could not incorporate more than 6 elements in the steel...

01 March 2021 8,840 1 View

How can you bring two structures together to create an adhesive bond in LAMMPS?

I have created an Ice 1h crystalline structure and an Aluminium substrate structure and equilibrated both at 250K. Now I need to bring them together in a way that an adhesive bond is created....

01 March 2021 3,325 2 View

What is the density for pva electrospining?

I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...

28 February 2021 298 3 View

Is anyone familiar with the cyclic compressive fatigue testing (BS EN 12697 - 25) ?

I would like to get more information on the cyclic compressive fatigue testing (BS EN 12697 - 25) which is typically done for bituminous material in pavement design. Any one can advise on the...

28 February 2021 2,004 3 View

For modelling epoxy-based matrices (in composites), which model in ABAQUS is the most suitable, Concrete damaged plasticity or Drucker-Prager model?

I am working on developing a micromechanical FE model for predicting kink-band formation in UD composites. To model matrix plasticity, which model, out of Concrete Damaged Plasticity and...

28 February 2021 5,415 1 View

How to calculate Z (the number of molecules in a unit cell) for calculating theoretical density?

I am trying to calculate the theoretical density of my ceramics materials. I use the formula below to calculate the theoretical density: Theoretical density = (Molecular weight x No. of molecules...

24 February 2021 3,823 2 View

Mohabattul Zaman Bukhari

As of mine, I do not facing with any problem yet with RG.. But I would say, it's good to highlight this, therefore the relevant personnel at RG would able to receive "feedback" and will be able to help you Aurea.. Wishing you, all the best then..

Sanaz Hassanzadeh

Hi dear friend;

the problem you mentioned is mainly depended on you connection statue. some hours in the day, the users' traffic would be exceed more than usual and so that, you may face such a problem. I think it's better to use Research Gate from 2-8 AM or 1-4 PM.

Good Luck

Aurea Rosal

Thank you for all your responses. They are sure helpful!