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Engineering
Engineering is an art and profession devoted to designing, constructing, and operating the structures, machines, and other devices of industry and everyday life.
5,839 Questions
1. Medical Uses:
i. Radiography : Radiography is an imaging technique that uses electromagnetic radiation other than visible light, to view the internal structure of a non-uniformly composed and opaque object (i.e. a non-transparent object of varying density and composition) such as the human body.
ii. Computed Tomography: Computed Tomography (CT scanning) is a medical imaging modality where tomographic images or slices of specific areas of the body are obtained from a large series of two-dimensional X-ray images taken in different directions.
iii. Fluroscopy: Fluroscopy is an imaging technique commonly used by physician or radiation therapist to obtain real-time moving images of the internal structures of a patient through the use of a fluoroscope.
iv. Radiotherapy: The use of X-rays as a treatment is known as radiation therapy and is largely used for the management of cancer; it requires higher radiation energies than for imaging alone.
2. X-ray crystallography in which the pattern produced by the diffraction of X-rays through the closely spaced lattice of atoms in a crystal is recorded and then analysed to reveal the nature of that lattice. A related technique, fiber diffraction, was used by Rosalind Franklin to discover the double helical structure ofDNA.
3. Airport security luggage scanners use X-rays for inspecting the interior of luggage for security threats before loading on aircraft. Border control truck scanners use X-rays for inspecting the interior of trucks.
4. X-ray microscopic analysis, which uses electromagnetic radiation in the soft X-ray band to produce images of very small objects.
5. Industrial radiography uses X-rays for inspection of industrial parts, particularly welds.
An old method of reproducing drawings that wound up with the copies being blue background with the lines in white. The original drawing was fed through rollers with the blank paper that exposed it to light. Then the blank paper was devleoped by exposing it amonia---very smelly process. The paper would develope into a blue color and the exposed lines were white---usually.
What was first Diesel or the diesel machine?
Dr. Rudolph Diesel first worked on the Diesel cycle using powdered coal dust on a slow speed two stroke engine. So the Diesel cycle came first and later developments led to Diesel engines. Sadly, Dr. Diesel committed suicide by jumping from a boat.
What is the first hormone prepared by Genetic Engineering?
There is no possible answer to be found athough many items could be correct
Kasih contoh teks descriptive bahasa inggris sekarang yatolong?
I saw a fish pond, there are lots of fish, every time they move to find food in order to survive.
one of them is tilapia, this is a beautiful fish, have beautiful color and shape, that's the reason I liked the tilapia
Abstract data type that store a whole numbers?
All data types can be used to store a whole number, even the data types that can store a decimal number.
What was the US nation's first engineering school?
Rensselaer Polytechnic Institute (RPI) -- "The oldest technological university in the English-speaking world". Founded primarily as an engineering school in 1824, RPI has been granting official engineering degrees ever since. Rensselaer's original engineering programs have been "ABET accredited" continually, since ABET was formed in 1936. Harvard has only one ABET accredited engineering program and it was wasn't officially accepted by ABET until 1962. West Point's engineering degrees, although old, were NOT officially accepted or accredited by ABET until 1985.
A 'pillar drill' or vertical drill press is a large drilling machine that stands on a very heavy steel base. A 3" or 4" steel column extends up either about 6 feet for a floor model or 3 for a bench model. At the top of this column is an elongated box with the motor at the back, driving a shaft with a 4 tier pulley above it. The front of the box contains a hollow shaft with a spindle inside it. The spindle also has a 4 tier pulley on top. The hollow shaft can be wound up and down by the side control lever, l
owering or raising the drill shaft and chuck, A belt between the 2 pulleys in the box drives the spindle and the chuck connected to it's lower end. In the middle of the column, a table, usually about 15 " square can move up and down the column to adjust work height
What are subjects of eletrical engineering?
embeded systems, vlsi, power electronics, plc etc., to inifinity..........
What type of tools does an engineer use?
There are a wide variety of types of tools. These include drills, hammers, screw drivers, wrenches, saws, as well as axes.
What is the physical science definition for pitch?
Pitch could be the frequency of a sound wave, but there could be (are) other uses in the physical sciences. Pitch could also refer to the angle of attack of a propeller into the air. Further, pitch is a term that is used to refer to the change of motion of a vehicle. (If the space shuttle is "pointing" in a given direction and suddenly is pointing in a direction that is "up" or "higher" than where it was pointing before, the nose has "pitched up" in flight.) Pitch can also be used to refer to the grade or gradient of a slope. There is also the use as a name for tree or other plant sap that is fairly viscous (thick).
What constitute dangerous occurrences and hazardous malfunctions?
Dangerous occurrences are those conditions or actions which have the potential to cause hazardous malfunctions. Hazardous malfunctions are failures of objects or assemblies which potentially may cause injury to operators or bystanders.
An air compressor is a tool that is used to provide compressed air. The compressor compresses the air which is stored in a large tank. Tools such as drills and air blow guns can then be attached to the air compressor. The compressed air can than flow through the tools to power them.
Is a microwave made out of thermosetting plastic?
The bulk of the material used to make a microwave is steel, and not thermosetting plastic. The cavity (the cooking space) is a metal "cave" with a door on it. There will be some components in an oven that are made of thermosetting plastic, but the bulk of the construction material is mild steel. Steel "seals in" microwave energy. Microwaves can pass through most thermosetting plastic. And that would be bad.
Why do engineers need to know about conductors and insulators?
To avoid or to attract the electricity
What are the physical and mental qualities of a person to become an aeronautical engineering?
The aeronautical engineers are concerned with the design and cnstruction, testing and operation as well as maintenance of aircraft and aircraft components by applying scientific and mathematical principles to practical ends.
The purpose of a circuit board holder is too help you to not use your hands as much as you usually do. And also in addition to a PCB holder a swively table vise like that.
What experience is required to become a robotics engineer?
software,control,mechanics,electronics,thermodynamics are the most important
Is there a way to focus multiple laser beams into a single more powerful beam?
Sure. We can do it now. But since the wavelength of sound is in the
neighborhood of 620,000 times longer than the wavelength of light,
in order to focus sound into a beam as narrow as you can focus light,
you need a 'dish' that's 620,000 times bigger than the concave mirror
you could use for light.
The 100-inch Hooker telescope on Mt. Wilson has been used to focus laser
light onto the moon. To focus sound into the same size beam, you need a
dish about 978 miles across, with the souind source at its focus.
Just like so many other examples of technology, the science and the math
are bullet-proof and air-tight, and the only thing we're missing is the $$$ .
What is the speed of a 3kW electric motor?
The speed of motion generated by a motor is not a function of its nominal power. The nominal power, 3kW in this example, is an indicator for the electric power consumed, and for the force available in the direction of motion.
The speed of a motor is determined by its construction, and can cover an extremely wide range regardless of its power.
How do you calculate section modulus of a T section?
This is a technique used by civil and mechanical engineers to calculate the cross section of a geometric figure. It is used to determine the Yield Moment also called My.
People use Archimedes' invention of the inclined plane for bringing heavy things from low ground to higher ground with less difficulty. You may find inclined planes in a truck with many cars and in a car tower. There's also usually one between a boat and the ground, for people to bring heavy things with them onto the boat.
What is the interaction between two waves that meet?
Interference. This can result in either constructive interference, resulting in increased amplitude, or destructive interference, whereby there would a reduced amplitude.
