Control Definition and 960 Threads

I am trying to figure out the best way to build an IR remote control. I was going to use momentary switches on the remote and need 18 switches. The remote is going to eventually control a preamplifier I am building for a senior design project which is still a few semsters away. I figure it is...

I need to know the pros and cons of: Jetties Breakwaters Beach Renourishment Planting of dune grasses & plants I've found the pros and cons of each type of erosion control except for jetties. The links my teacher gave me aren't that great, as usual, so if anyone can provide me with a...

Please help me in finding some good books and literature on thermal control of spacecraft

This thread contains section 2 and part of section 1 of a 5 section paper I'm writing regarding consciousness. Section 2 is intended to create a more general theory around something used in engineering called "control volumes". I've also included part of section 1, the abstract, to provide a...

[SOLVED] How Much Government Funding And Control Over Science Fields? How government control is over the all science fields in countries like Canada, USA, and Britain? How about in the East like South Korea and Japan? How much control and funding? Do you think government controlling the...

Ok I suspect it may be pointless to post here considering the bad rap that BASIC gets. I have a fair amount of BASIC experience in instrument control. I started out with Commodore BASIC and moved up through QBASIC and Quick BASIC (yes there is a difference) and through Visual BASIC 6.0. BASIC...

http://www.cnn.com/2005/TECH/10/25/human.remote.control.ap/index.html Thoughts? I want to try it out on myself to see what it's like... but ehhh

I want to control the rpm of a brushless motor with ESC(Electronic speed controller) using PID control. Suppose my motor is rotating at 2000 rpm detecting using hall sensor setup.Now I want it to run at 5000 rpm.The speed will be controlled by PWM signals generated by PWM module( 16-bit i.e...

In what ways, if any, is it possible to purposely control neurons? Thanks

The control program for a device-driver process is an infinite loop. Roughly, the loop body is: wait for I/O request from user process; send I/O command to device; wait for command completion; notify (unblock) user process. a) [10 marks] Suppose the device driver waits by polling the...

Friends I am Baltistani Help me resolving my confusion and dificuty 1- Which one is the best software for thermal analysis of a remote sensing satellite

Remote Control + Head = further distance? huh? has anyone else noticed this? I'm sure you have? has anyone got an explanation for it? like... when you put your car remote, you get about 10ft more range from it... or a garage door remote, about another 30ft when you put it against your...

I had a small doubt.Enzymes have an actyive site to which the substrate attaches itself and this is the place where all the chemical changes takes place and the active site brings changes in shape of the incoming substrate. So when we talk about the inhibitor interfering with the...

Hi. Sorry for bringing this up again, if somebody deems it necessary/good they can just delete this thread. If necessary I would even pay somebody to obtain this information; however this seems like a great place to get information like this. In fact, it seems like a spectacularly amazing forum...

This guy installed a pc with gentoo linux in this mazda: http://www.timekiller.org/carpc/ Things he could do:

As is well documented the Defense Advanced Research Projects Agency is funding many progressive biotech research programs. One such program involves Brain Machine Interfaces and Muti Micro Electrode Arrays. Some people think that there is a hidden agenda of attempting some sort of mind...

hi, Can someone suggest some good books in Control Systems engg. which includes all from laplace to bode plots,nyquist etc etc. Thanx for any help.

dear members i want to design speed control circuit for 24v dc permanat magnet motor in both direction if anyone have ideas or circuits please post here. it may be great help to me. Thanx in advance

Hi guys, my friend and I are creating a remote control pingpong collecting robot and so far we have the basics to make it move forward and backward; however, I have no clue in how to clean up this mess of the wires flowing from the motors to the remote. Any help is appreciated and I'll include...

This post is cross listed at the below url https://www.physicsforums.com/showthread.php?t=73985 I'm attempting to use MATLAB to solve an electrical engineering problem dealing with controls... I'm trying to design a transfer function which will control a servo motor using what is often...

http://ap.tbo.com/ap/breaking/MGBF2XRX08E.html Ok now... do these assemblymen in my state even think about what they are talking about when they make these bills? What i got to ask is this: 1) How in gods name do they think they can stop any crime if this is a california only thing? Can't...

This more of a maths question rather than a physics one, but I do remember doing something similar is my physics course. Basically I trying to write a fade in and fade out function for a volume control but I am stuck on the maths part. Thats where I need you. I've tryed a linear fade...

Does anyone know of a circuit that will digitally control a voltage multiplier circuit. i believed it to be a DAC but this is incorrect. Does anyone have any ideas?

I'm looking for some terminology. Numerical methods of analysis seem to use different terminology for the same things, such as an "element" or "finite element" used for stress analysis, versus a "control volume" in thermodynamics. I've also seen both terms used in CFD. Is there a proper term...

How does it work for the 'Adrenal Gland'? I cannot find this information anywhere and I need it as soon as possible, thanks. Thank you.

For example, when you are doing an essay, you must get some idea to write. Thus you send an impulse through the nerve cell to the brain. But what send the impulse, and how is it controlled?

Would it be possible to have a toggle in our control panel to choose between viewing Usenet posts with or without the automatic LaTeX parsing? The current parser doesn't seem too effective, and the images don't seem to be loading anyways.

Hi. I'm trying to find information about the circuit which controls raytracing within a television CRT tube (the circuit which controls the current through the steering coils deflecting the beam up down left and right)... How is this precise raytracing accomplished... what type of circuit is...

http://www.cnn.com/2004/TECH/internet/12/07/tech.security.reut/index.html I've made a previous post that stated how many relay attempts or exploit scans I receieve daily from foreign addresses. When is the government going to realize that a very small percentage of "cyberattacks (jeez, they...

I woke up this morning, and I noticed I had over 50 attempts for relaying through my mail server (mostly from Asian net ranges). I feel strongly that this has gotten out of control, and I wish I could report the individual IPs to their corresponding ISPs, knowing they would take the appropiate...

Anybody here know how to write a remote control program which is compatible with infra red device? Besides, it also have to be able to learn the frequency of other remote control. Mainly use for notebook. Thanks.

Hello, Can anyone tell me what is the simpliest and cheapest method to control of velocity of an electric motor? or what kind of motor to use to reach such a control?

anyone here know how does oxidizers kill off those algae?i know that oxygen atoms are produced but am not sure the mechanism that cause the death of the algae. also how do flocculants actually work in clumping the algae together?

yo dudes! I am new here, and have been looking into gravitational control for a while. any of you ever heard of it, or have ideas on how it works. I heard that the only place gravity does not exist is between 2 objects with the same pull on the object, thus when all 3 objects move, the object in...

Just to grab your attention, check http://www.stud.ntnu.no/~arnesen/peltierbeer/ out. This man is my new god. Anyway, the real purpose of this thread is to discuss how to play with a peltier device without burning my apartment down. I have ordered a 40mm, 110w (15V/10A) peltier from Ebay...

Found the site doing a Google search. Just need to know if this is possible. I have an old amplifier that does not have any remote control. I wondered if it would be possible to do something that will alow me to at least control the volume remotely. Any ideas. Thanx.

Is the UN a forum through which countries may meet and discuss matters on equal terms, and all have a fair say? Is it a means by which the nations of the Security Council may exert diplomatic influence over the rest of the world? Does one nation currently rule through economic influence?

Active/Passive noise control hi everyone, I am currently working on a project to reduce noise in AC/Heating systems in airplanes. As reference am using some literature in Engineering Noise Control and some research papers on Active/Passive noise control. I am currently searching for some...

hi everyone, I am currently working on a project to reduce noise in AC/Heating systems in airplanes. As reference am using some literature in Engineering Noise Control and some research papers on Active/Passive noise control. I am currently searching for some information on; if there are...

Does anyone know control theory? I need to know whether it can be used to find inputs for a neural network in order to produce a desired output.

anyone here know how algaecides control algae growth?specificity? any other methods on controlling algae growth would b greatly appreciated

Who play these games? Good or not?

First ---- Rape is a crime and one that commits such an act against another person should be punished – no doubt. This is not a thread about whether rape is wrong – it is. And the harm goes much deeper than physical injury. So - this thread is in no way saying that rape occurs naturally and so...

http://www.medphys.ucl.ac.uk/~martins/orbit/orbit.html One of the best programs for anyone interested in orbital mechanics of space flight or anyone who just wants to simulate a shuttle or Apollo flight with a joystick. :smile: I found this a couple of days ago and have downloaded about...

Neglecting friction: I have a four inch diameter pipe that has a constant 8 psi input of natural gas(It is regulated and any psi drop throughout the pipe are negligable in this situation). I found a site to tell me that the avg natural gas density is 0.4445 kg/m^3 at .06 MPa which I...

Hi friends, I'm a user of Meade's 12" LX200GPS and I was looking for the software to connect my telescope to my pc, I installed "Starry night pro" version 4.5 and ACP3 but they didn't work. Starry night only had LX200 & AutostarII in the list it supported but not LX200GPS. Does anybody know...

Hi I am currently working my way through a control systems textbook and I am bringing my understanding of the relevant mathematics up to speed. I have happened across the Laplace Transform which I am happy enough with. I am concerned however that given the fact that this is a real project I may...

Newest Science issue: http://www.sciencemag.org/cgi/content/full/304/5671/663a Science, Vol 304, Issue 5671, 663-665 , 30 April 2004 BTW, the Hippo was common as north as the UK in certain times so it might not have been always that cold in Europe. What interests me is why -after...

Resource Access Control Facility In Physics Understanding the law of quantum law why somethings can be bent and some cannot leads you too one answer quantum law is based on frequency picture a circle. Each dot outside the circle is a law and everything can be computed with in that cirlce...

Hey guys My girlfriend's doctor recently switched from OrthoTriCyclin (sp) to Trinessa birth control. She isn't fully aware of why she was switched. What do you know about this brand of birth control?