2. A series of natural occurrences that produce change or development.
3. The entire proceedings in a lawsuit.
4. A summons or writ ordering someone to appear in court.
5. In biology, a part that naturally grows on or sticks out on an organism.
6. Etymology: "fact of being carried on"; that is "in process", from Old French proces, "journey"; from Latin processus, "process, advance, progress"; from the past participle stem of procedere, "to go forward".
2. A process in which an aqueous caustic solution is used to extract mercaptans from refinery streams.
Mercaptans are groups of organosulfur compounds that are derivatives of hydrogen sulfide in the same way that alcohols are derivatives of water; have a characteristically disagreeable odor, and are found with other sulfur compounds in crude petroleum; an example is "methyl mercaptan".
Mercaptans are found in crude petroleum, and methyl mercaptan is produced as a decayed product of animal and vegetable matter.
They also are produced by certain plants and animals; for example, allyl mercaptan is released when onions are cut, butanethiol (butyl mercaptan) derivatives are present in skunk secretion, and mercaptans are among the sulfur compounds causing the disagreeable odor of flatus.
T-butyl mercaptan blends are often added to the odorless natural gas used for cooking and serve to warn of gas leaks.
Mercaptans are included in a wide variety of chemical reactions and their principal uses are in jet fuels, pharmaceuticals, and livestock-feed additives.
2. An process that uses electricity to cause the decomposition of a chemical compound.
Examples are processes employing selenium-coated drums or zinc-oxide-coated paper.
2. A non-chemical, non-impact imaging process in which a light source, corresponding to the image to be formed, discharges a charged dielectric photoconductive surface to form an inactive image.
This surface, a photoconductor, containing the unseen image is then dusted with dielectric toner powder which sticks to the charged areas, producing a visible image.
2. Used to generate higher temperatures than can be produced by combustion processes.
3. Any process that uses an electric current to generate heat, utilizing resistance, arcs, or induction.
It is used to achieve temperatures higher than those which can be obtained by combustion methods.
2. The process of making an electrotype or the art or process of electrotyping something by employing, or producing by, the process of electolytic deposition; such as, a galvano-plastic copy of a medal, etc.
2. A process of condensation and polymerization in which a mixture of a relatively light mineral oil and a fatty oil is subjected to an electric discharge in an atmosphere of hydrogen.
The product is a very viscous oil (thick and sticky, reluctant to flow, and difficult to stir) used for blending with lighter lubricating oils.
2. Warm-blooded animals; such as, birds or mammals; maintaining a body temperature largely independent of the temperature of the environment; homoiothermic.
3. Characterized by, or attended with, the absorption of heat.
4. Also known as homoiotherm.
The auditory, or acoustic, meatus consists of two passages in the ear; the external acoustic meatus leads from the auricle to the tympanic membrane (eardrum) and the internal acoustic meatus which is for the passage of nerves and blood vessels.
2. The nipple-like projection of the petrous (hard, stony) part of the temporal bone or a very complex bone situated in the side of the skull of most mammals and containing the organ of hearing.When this property of light is combined with the properties of semiconductors, electrons flow in one direction across a junction, setting up a voltage.
With the addition of circuitry, current flows and electric power is available.
A pointed cartilage attached to the lower end of the breastbone or sternum, the smallest and lowest division of the sternum. Cartilaginous early in life, it may become ossified (bony) in adults. It is sometimes simply called the xiphoid. Also known as the ensiform cartilage or process.
The ancient Greeks thought the xiphoid looked like the tip of a sword. The word xiphoid is from the Greek xiphos, "straight sword" plus eidos, "like" resulting in "straight sword". Ensiform is from the Latin ensis, "sword" plus forma, "shape" equals "sword shape".
2. The changing of sensible air temperature without the gain or loss of heat to or from the surrounding air.
The most widely used technique for making single-crystal silicon, in which a seed of single-crystal silicon contacts the top of molten silicon.
As the seed is slowly raised, atoms of the molten silicon solidify in the pattern of the seed and extend the single-crystal structure.
Metals are extracted from ores in three primary ways:
- Dry processes; such as, smelting, volatilization, or amalgamation; which is treatment with mercury.
- Wet processes, involving chemical reactions.
- Electrolytic processes, which work on the principle of eletcrolysis using electricity conducted by a solution or melt to effect chemical changes.
As the coils are slowly raised the molten interface beneath the coils becomes single crystal.