Engineering

The abbreviation for circumference is a capital "C". Sometimes a "P" is used for perimeter.

the objective of multiprograming is to have some processs running at aal time,so as to maximizing cpu utillization .this process is called scheduling.

30th December 2006

Nails are sharp pointed and are hammered into wood. Bolts are threaded and are inserted into drilled holes in metal or wood or plastic and a nut is screwed on the threads to hold the bolt in place.

For many centuries, Chinese farmers had to depend on rain to water their crops. Under Zhou kings, the Chinese developed new systems to irrigate the land. With a better water supply, farmers were able to grow more crops than ever before.

China's trade also expanded. Archaeologists have found pieces of Chinese silk in central Asia and as far away as Greece.

There are a few terms that need to be understood. [dBm,dBd,dBi and dB] For antennas, a common reference unit is the dBi, which states the gain of an antenna as referenced to an ISOTROPIC source. An Isotropic source is the perfect omnidirectional radiator, a true "Point Source", and does not exist in nature. Consider it a source which is the center of the sphere and the energy is coming equally out of it as a sphere. Now in reality nothing like that exists. It's also 2.41 dB BIGGER than the next common unit of antenna gain, the dBd, When you convert that to a real antenna.

So a simple dipole antenna has a gain of 2.41dBi, and a gain of 0dBd, since we're comparing it to itself.

Now lets talk about dBm, dBm is not is reference to anything else but the used as an actual gain ( say amplifiers ) , P(dBm)=10*LOG(1000*Power in milliwatts,10), an amp with an output of 30dBm puts out 1 Watt. It is not in refernce to two power level but directly correlating the gain of a device.

Now when you talk about a dB it is a relative measure of two different power levels. 10log (p1/p2, 10).

The number 12.3 grams per horsepower hour is very low. For a diesel engine, the fuel consumption is about 181 grams (of diesel fuel) per horsepower hour. If the 12.3 gram number were right, you just multiply by 67 and get 824.1 grams per hour, or 0.8241 kilograms, multiply by 2.204 pounds per kilogram and and get about 1.8 pounds per hour. This number is too low, it is about 1/3 of a gallon.

So, where does the 12.3 number come from?

I am fully qualified to answer this question.

Stephen G. Margolis, PhD in Engineering Science

silogram@alum.mit.edu

Judging by the way the question is asked, I am assuming you are looking to find the emission factor and emission rate on a diesel engine to obtain a permit, rather than determine consumption. If this is the case, convert 12.3 grams(guessing that is the nitrogen oxides output) to .02712 pounds, and that gives your emission factor. Now multiply that by 67hp to get 1.817 pounds per horsepower hour, and that would be your emission rate.

Ian,

Facility Manager who occassion has to apply for permits

There are a number of components in any circuit and their job is to restrict the flow of electrons and reduce the current or voltage flowing by converting electrical energy to heat. In other terms, electronics control the electrical circuit. Electric charge is nothing but the flow of electrons from one object to another. The working of the microwave is the example of how electronics work. In a microwave, electricity provides the power that generates high-energy waves that cook your food and electronics controls the electrical circuit that does the cooking.

Google the following: "tap and die"

It matters less what you made and more what tools (ex. software tools) you have experience with, and whether they apply to the new product.

Of course you would have to show that you know something about guitars, so that they know you would make a good product.

hi i am kashif iqbal, u asekd that how can we calculate the capacity of biler through heating surface its a very simple for example a boiler having heating surface of = 1425 sq ft applying thumb rule = 1425/260=5.48 tons

there should be a camera on the front of it

Brass (or bronze) is the "hot" wire, (Black, red, or blue) silver is for the neutral (the white wire) and green is for, well, the green or bare wire

Blaniers Test is used in electronics to establish and locate short circuits and/or open circuits in cabling systems. It is a simple continuity test.

Assuming that the boat accelerates from 0 to 40kph instantly and travels in a straight line across, 3 minutes.

the ability to fight in war and have a good after life

Welding rods are fillers that add to the molten pool of metal. They are usually stronger than the metals being fused. In arc welding, they have a coating that burns and creates a shield around the puddle.

welding rods are used for weld two pieces of metal together, or to cut metal if you have big enough rods and enough amps.

A guillotine was used during the french revolution to chop heads off the rich and royal.

A foot model could have the purpose of chopping feets off. (Makes me ponder if this has actually been made for this particular purpose)

If it is infact a smaller model only, then its purpose is probably more for display and "education" rather than actual use.

The guillotine is by most people considered to be a gruesome and inhumane tool.

Facts is that it provided a quick death, although the waiting time before execution must have been devastating thoughtwise.

Not that I condone such methods of killing or disabeling people as the outcome is most permanently even if you infact might be innocent of the crime charged with.

Some tiny models have been made to cut off the tips of cigars before you light them.

Well the dwell angle is the number of degrees of rotation from the cam (during which the points are closed) During each rotation of the cam, the points must open and close once for each cylinder.

Hope this helps x

A software engineer is a person who applies the principles of software engineering to the design, development, maintenance, testing, and evaluation of the software that make computers or other devices containing software work.

George Stephenson, around 1825. The 4' 8 1/2" gauge was used by horse drawn wagons in mines for years before and was adopted as standard across the USA, UK and most of Europe. Other gauges were tried and dropped, in favour of standardisation.

* Added - Although George was responsible for standardizing the railroad tracks and advancing railroads, he was not the inventor of the locomotive or of the railroads. The recognized locomotive inventor is Richard Trevithick in 1803, but his invention relied on inventions of many people before him as well. The first railroads date to the 1500's and many people were responsible to advance them to what they are today.

PN is a short term for "pressure rating of a pipe" PN depends on wall thickness, diameter and material type.

A PN 16 pipe is one that can withstand 16 bar (1.6 megapascals or about 232 psi) at 20 degrees c.

If you want it interms of height of equivalent water column, 1 bar =10.2 m of height water column at 20 deg C, this a PN 16 pipe can withstand 16*10.2=163.2 m of water head (static+dynamic).

No. The last 10 (The Barry Ten) were removed into the care of Vale of Glamorgan Council. Two have subsequently been restored and the last 8 are stored in "scrapyard condition" at the Barry Island Railway.