Recent content by NSX

Hello all, I need to find the statistical significance (95% confidence interval) for 3 independent samples. From what I understand, in order to find the statistical significance for more than 2 samples, ANOVA (ANalysis Of VAriance) is employed. ANOVA fits in nicely with what I want to do...

Thanks for the help. That's actually what I was planning to do, using the LMTD method and a 2D approximation. I have the Introduction to Heat Transfer of the book you mentioned, and it wasn't a help. I will read into the version you suggested. Thanks

Does anyone know where I can find the governing equations on the heat transfer of a horizontal, closed loop system? e.g. http://www.eere.energy.gov/consumer/images/closed_loop_system_horiz.gif I've tried searching online, and all I can find is the general overview, no equations :frown...

Seems that they've tried LDA in the past, and there were issues in calibrating it and such. In addition, my supervisor said that he's more interested in how concentrated the flow is, i.e. amount of particles flowing through a volume in the tube at anyone single time. He wants this because...

I'm currently reading about it, and so far it looks good! My concern atm is that it says its been used for http://www.dantecdynamics.com/LDA/Princip/Index.html ... I'll read into whether it can be used for small, particle flow. Thanks! [edit] Actually, the ppt presentation they have on that...

Hi all, I've been asked to search for a way, cost isn't that big of an issue, to measure flow rate in real-time of small, fast, abrasive particles (AlO2). These particles are, on average, 50 microns in diameter, and are shot out of a nozzle, itself just a bit bigger than 50 microns...

Maple 10.02 gives funny stuff too: https://my.ryerson.ca/bbcswebdav/users/m4yip/gt4/xy.gif Here's the code I used: restart: with(plots): a := implicitplot((x^y=y^x), x=-200..200, y=-200..200); display({a});

ah! interesting, I had no idea I will try to read up on some double integrals and cartesian/polar co-ordinate integrals this weekend. Thanks

Since J = \int\limits_{{\rm - }\infty }^\infty {{\rm e}^{{\rm - x}^{\rm 2} } } dx, why is J^2 = \int\limits_{{\rm - }\infty }^\infty {{\rm e}^{{\rm - x}^{\rm 2} } } dx\int\limits_{ - \infty }^\infty {e^{ - y^2 } } dy instead of J^2 = \int\limits_{{\rm - }\infty }^\infty {{\rm e}^{{\rm...

ah, thanks Gokul43201! I was getting the idea that there is no underlying equation, because the papers I've read dealt with different materials, and also had different equations to find out such coefficients. I will check out the Feynman Lecture as you suggested. :smile:

Hello everyone, I'm not sure if this is in the correct topic, so please move to a correct one if need be. Are there any mathematical relationships between the wavelength or frequency of an electromagnetic ray and the optical properties of a material? By optical properties, I mean the...

I wrote it back when I was in grade 12. As for advice, try some of the http://www.cemc.uwaterloo.ca/english/contests/euclid.shtml to get an idea of what the test is like. Like AKG said, aside from doing those tests, the best thing to do is to understand the current material. IMO...

Do you have to use a Graphing Calculator? If not, perhaps you can use Maple. I'll include sample code in the case you are able to use Maple. with(plots): points := {[-1,-1],[-0.96,-0.151],[-0.86,0.894],[-0.79,0.986],[0.22,0.895],[0.5,0.5],[0.93,-0.306]}: p := pointplot(points...

Great guys! Thanks so much! As for pronounciation, my prof calls it "Runga" Katta too <_<

Runga-Kutta or Runge-Kutta What's the correct name for this method? On google, there's more hits for the latter, at 193 to 37, but what did you guys learn it as? My prof calls it Runge-Katta in his lecture notes, and Runga-Katta in the problem set. :confused: Thanks in advance...