Recent content by rp8308

A single network technically does produce different curves on every run of the simulation, however, in general these curves are almost indistinguishable from each other. Technically I am running multiple simulations (about 100) for each particular network but not averaging, however, I will...

I think the distance between the curve and some reference curve would be a suitable method of analysis. So for example knowing all the y-values for the different networks at a particular x-value, I can generate a reference curve from the mean. Then using a cut-off such as 2 or 3 standard...

Thanks for the reply again. I'll try my best to explain the outlieing curves from the majority. All the results are positive. The results all begin at (0,0) and all end up at about (103,0) on a log-graph. In between these two x-values they tend to increase in a general hump formation with...

It is essentially a random walker on a network. The x-y output is essentially time (iterations of random walker from node to node) against a value that I define as 'the likelihood of getting trapped in a subnetwork within the major network'. The network does not control anything, the simulation...

Thanks for the reply. The simulations are stochastic. The network is a set of 200-300 nodes. Each simulation is missing one particular node. The aim is to identify the importance any nodes in the network. The end game of the results will be to publish a paper. Hope this helps.

Hi guys, I have run multiple simulations on networks that are all slightly perturbed from each other. They produce slightly different curve outputs onto an x-y graph which I need to now analyse (it has been about 5 years since I did statistical analysis hence why I am here). A couple of the...

ok, many thanks Hassan. I had been hoping for a way to make some estimations from first principles but I will now look into finite element analysis. I have a program called FEMM 4.2 I will work with.

Ok thanks. But surely for ferromagnetic materials the permeability of the core will change with the applied magnetic flux (changing current)? Won't this affect the inductance of the coil?

Just adding more: So if the induced EMF in the coil, that opposes the changes in current (Lenz's law) is ε = - L dI/dt then if I = I0sin(wt) then dI/dt = I0 w cos(wt) = wI therefore L = ε / (wI) = ε / (w I0 cos(wt)) This gives me the changing inductance with time? I will...

Hi guys, I have a small pet project at the moment and I'm trying to look at eddy current losses in transformers. Whilst researching my project I realized that my AC current, when applied to the coil (wrapped around the steel core), would be subject to an inductive reactance. Is it correct...

ok I am pretty sure its the length of core because flux through the core won't change with the density of turns, but could do with someone just confirming this... I hate when i confuse myself

Just need a question cleared up. If I had a coil wrapped around a core, and I was calculating the magnetic field of the solenoid using B = μnI where n = N/L, I is current and μ is the permeability of my material N being the number of turns in the coil, and L being the length of the...

if i calculate the change in binding energy in a decay process such as B-decay using SEMF, and then i calculate the same difference in binding energy using the difference in atomic masses and electron masses. why are they different?