Interface Definition and 168 Threads

Hello Guys According to Classical electrostatics, when you apply a voltage across a capacitor, +Q and -Q charges are induced on a delta region at the interface of the dielectric and the metal electrode. The electric field inside the dielectric is finite and constant while the electric field in...

Hello, I have a small 300W wind turbine (Aero4gen). I also have a weather station which datalog's the wind speed/direction, ect... at intervals of 5 mins also there is a solar radiation sensor (photodiode) (0 to 3 volts). Anyway, i will not be needing the solar radiation datalogging facility...

I need some help here. I need to have a standard PPM servo interface with MATLAB so that I can give it a command in simulink and have a response. I found this device, which eliminates the need to use PPM in simulink. http://www.parallax.com/detail.asp?product_id=28823 Basically, it...

Hi Everyone, I'm new here and I hope someone can help me with my project. I need to design a Space Vector PWM circuit block connected to my DS1102 PWM hardware block in Simulink. Anybody have any ideas? Here's what the dSPACE support people wrote: Here is some advice from hardware...

Hello everyone. Very nice forum you have here. I came here to ask if someone can give me a few pointers on Physics. I am totally lost here. I found this page http://www.ictshirts.com/t-shirt/122/quantum-physics-electron-double-slit.htm and they talk about electrons, double slit, interface...

Hi, There seems to be lots of interesting news about Brain Computer Interface recently (and not so recently).. for example artificial vision (even if only a handful of pixels) and controling prosthetics.. also some interesting articles on rat-neuron computer chips etc. What I find most...

Hey guys how's it going this is my first post so take it easy on me :wink: . I'm in my last year of electrical engineering technology, and we need to design and construct a final project. On the list of possible topics was the idea of a bio-med game interface. It would be biomed probes detecting...

A tiny layer of oil (n = 1.25) is situated on top of a water puddle (n = 1.33) in a parking lot. If the thickness of the oil is 242 nm, the what color(s) of visible light will give a strong reflection? 2t=m*lambda/n2 2t=242nm/1.25 and then 2t=242nm/1.33 i just don't know what goes where...

Has anyone had any experience with this? I'm interested in what the programming interface is like and what level of stuff you can make.

http://pdc.xbetas.com.nyud.net:8090/?page=o12preview1 What do you think of the new interface? Looks like they they stole the brushed metal look of OSX.

(this doesn't really apply to me, I'm just curious) How would someone create an interface design with their program instead of compiling it and opening it in command prompt?

an insect hovers in a fixed position above the still water of a pond. draw a diagram to show approximately where it appears to be to a fish vertically below it. Okay I am confused between two things ... is it going to appear at a lower height than original or will be at the same height since...

What fraction of light is reflected from the air water interface? i.e. How intense is your reflection from a lake? since the reflection coefficient is R = (\frac{n_{2} - n_{1}}{n_{1} + n_{2}})^2 n1 = 1 and n2 = 1.33 so R = 0.248. I am not sure how to interprete this? 25% of the light...

Hello all I know an interface is even more abstract then an abstract class. Let's say I want to make an interface called Furniture that implements two class called Chair and Table. What does this exactly mean? Can someone please clarify this? Thanks public interface Furniture { int...

Hi, I'm trying to design a low-cost digital radio interface to communicate with a robot. I'm not interested in exchanging a lot of data, or doing it at high speeds. This design will work well if I can get even 300 baud out of it since I never exchange more than about 1K bytes during a...

How do I compute the electric Field, polarization and flux density at the interface of a dielectric material and a conducting Material?

I googled for ocean, plastic, pollution, "Discovery Times", to find something that I saw last night and instead got this...what a coincidence. I assume that this is some crackpot but all considered it seemed worth a post...

First, let me introduce the situation: I'm an undergraduate physics major taking a course in Experimental Physics. In the lab I am investigating the motion of natural underdampened oscillators. The oscillators under investigation are nothing more than various pieces of metal suspended...