Engineering - March 2007

If it hasn't been invented yet, I'm going to work on it for our project study...

2007-03-26 04:29:38 · 5 answers · asked by Ayachan 2

2007-03-26 04:22:19 · 4 answers · asked by JDA 1

I am working on a prototype that would involve some simple electronics and would like some consulting help

2007-03-26 03:14:33 · 1 answers · asked by stinkinggenius2003 6

how does it meets adults needs????
ICT cw....

Thanks =)!

2007-03-26 02:36:16 · 1 answers · asked by Pureness =) 3

2007-03-26 02:35:47 · 4 answers · asked by Anonymous

Analytically show that the magnitude squared frequency response equals unity at all frequencies. i.e |h(w)|^2 = 1
The transfer function of a digital filter, running at a sample rate fs = 10Khz is given by

H(z) = a + z ^ -1 / 1 +a . z ^ -1

Where z = e ^ jwt
and
|h (w)| ^2 = h (w) . h*(w) = h(w). h(-w)

Starting with
(a + e ^ (-jwt) ) / ( 1 + a . e^ (-jwt))

2007-03-26 02:30:52 · 1 answers · asked by mdonaghy17 1

2007-03-26 02:29:32 · 7 answers · asked by JCP 1

Ict c/w..

Thanks! =)

2007-03-26 01:31:24 · 2 answers · asked by Pureness =) 3

2007-03-26 00:48:13 · 1 answers · asked by gulshan k 1

2007-03-26 00:22:38 · 6 answers · asked by Matt 2

2007-03-25 23:47:40 · 6 answers · asked by rash 1

In some airports there are security check point machines (which i think use x-rays) through which you have to send your bags.

So i need to know whether its not good for a laptop computer to go through these machines?

which the rays from these machines damage the laptop memory and internal chips?

2007-03-25 23:19:34 · 2 answers · asked by sh 1

you can find and purchase Codes and Standards like ASME, ANSI, API, AWWA, IEEE, NFPA,... with least price in the world.
just email to: boundarylayer2000(at)yahoo.com

2007-03-25 23:09:07 · 2 answers · asked by boundarylayer2000 1

Hi, I have a 5 mtr x 2.5 mtr concrete sectional garage I have been asked to arrange for it to be removed from Sutton in Surrey and delivered to Rochester,Kent. the planks that comprise the garage are bolted together, there are no posts because it is freestanding.They are 400mmx1200mm x 50mm thick and weigh 70 kilo each. There are 29 planks that are heavy enough to be almost too much for two guys to move. tthe men that took the garage down are unable to drive a hire vehicle as they are too young (must be over 25yrs) and I do not even know what section or heading I should be looking under in the business pages.

2007-03-25 23:06:28 · 3 answers · asked by MeiyaLyrics 2

2007-03-25 22:47:48 · 6 answers · asked by e r 1

2007-03-25 22:10:27 · 2 answers · asked by Anonymous

in UPS voltage THD current THD having % at input side and output side what is that and how it is created

2007-03-25 21:44:14 · 3 answers · asked by gopalsingh 1

I don't need softwares because they are too complicated. I have no time to learn it. If you can tell also to calculate the heat gain from trombe walls and any other passive solar systems i'll be very glad.

2007-03-25 20:52:33 · 1 answers · asked by celikemir 1

I have a class project where we have to design a ping-pong ball launcher from an electric motor, and up to 50 dollars of supplies. Once started the launcher has to shoot 6 ping pong balls 15 feet into a bucket. Winning team makes the most amount of balls.

Anyone have any good design ideas, or websites that I could use for reference??

2007-03-25 20:20:34 · 4 answers · asked by Tex 1

welded ends for sanitary piping, and for welded parts on s.s.tanks.
how might I get certified to do this type of work ?

2007-03-25 20:18:00 · 3 answers · asked by apup76 3

http://www.electronics-lab.com/projects/oscillators_timers/014/index.html

i use to construct this circuit. however when the supply connected i realize that there are no start button to make the stopwatch start counting up. i actually tought that when the supply is given, the stopwatch will start counting. however it is not. please anybody help me...

2007-03-25 20:16:37 · 3 answers · asked by mohd faiz hassan 1

http://www.electronics-lab.com/projects/oscillators_timers/014/index.html

i use to construct this circuit. however when the supply connected i realize that there are no start button to make the stopwatch start counting up. i actually tought that when the supply is given, the stopwatch will start counting. however it is not. please anybody help me...

2007-03-25 20:13:56 · 1 answers · asked by mohd faiz hassan 1

http://www.electronics-lab.com/projects/oscillators_timers/014/index.html

i use to construct this circuit. however when the supply connected i realize that there are no start button to make the stopwatch start counting up. i actually tought that when the supply is given, the stopwatch will start counting. however it is not. please anybody help me...

2007-03-25 20:12:54 · 1 answers · asked by mohd faiz hassan 1

Guidelines on sizing of a blower header

2007-03-25 20:00:12 · 1 answers · asked by kushahrul 1

2007-03-25 19:42:45 · 4 answers · asked by reza_hemmatdj 1

i need it now for shool and dont have much time!

2007-03-25 19:24:00 · 5 answers · asked by cure white 1

2007-03-25 18:57:49 · 5 answers · asked by Ishu 1

If instead of building any new coal, nueclear or any kind of dangerous or dirty power plants, we'd build...
(1)offshore wind off the coasts
(2)wave power off the coasts,
(3)geothermal by yellowstone and elsewhere where it's possible,
(4)solar power in the south, southwest, and southern west coast,
(5)biofuel in the farm belt,
(6)organic waste bacteria digestor power plants to replace sewage treatment plants, and on farms(they use sewage, manuer and plant and animal waste from farms),
(7)landfill gas power plants,
(8)phasing out the production incandencent lightbulbs
(9)steadily increasing fuel efficenty standerds,
(10)by giving subsidies for people to buy energy efficent and enviromentally freindly home appliences, heating, and insulation
phasing out the old dirty power we currently use as quickly as building capaciety surpasses "new energy" requirements.

2007-03-25 18:51:00 · 1 answers · asked by Stan S 1

2007-03-25 18:49:55 · 4 answers · asked by Anonymous

im trying to design an auger and i would lik to know the calculation required to do this

2007-03-25 18:45:17 · 1 answers · asked by icedarkangel23 2