Search results

• Valproic acid
  ...saminase]]). Valproate is also believed to reverse the [[transamination]] process to form more GABA. Hence, valproate indirectly acts as a GABA [[agonist]].
  25 KB (3,328 words) - 16:47, 27 September 2010
• Activated carbon
  ...h [[head loss]] that would occur. PAC is generally added directly to other process units, such as raw water intakes, rapid mix basins, clarifiers, and gravity This is a process by which a porous carbon can be coated with a biocompatible [[polymer]] to
  41 KB (5,738 words) - 16:47, 27 September 2010
• Aspirin
  ...d's [[hydroxyl]] group into an [[acetyl]] group, (R-OH → R-OCOCH3). This process yields aspirin and [[acetic acid]], which is considered a [[byproduct]] of
  78 KB (10,918 words) - 16:52, 27 September 2010
• Dopamine
  ...]s (PPOs) are a family of enzymes responsible for the [[Browning (chemical process)|browning]] of fresh fruits and vegetables when they are cut or bruised. Th
  48 KB (6,470 words) - 16:48, 27 September 2010
• Acetazolamide
  ...sponse takes a few days, however acetazolamide in a sense accelerates this process by leading to a more rapid renal bicarbonate loss ([[metabolic acidosis]]). ...for acute mountain sickness; it speeds up part of the [[acclimatization]] process which in turn helps to relieve symptoms.<ref name=MedicalProblems/><ref nam
  12 KB (1,686 words) - 16:48, 27 September 2010
• Acetic acid
  Most virgin acetic acid is produced by methanol carbonylation. In this process, [[methanol]] and [[carbon monoxide]] react to produce acetic acid accordin The process involves [[iodomethane]] as an intermediate, and occurs in three steps. A [
  41 KB (5,915 words) - 16:49, 27 September 2010
• Aluminium hydroxide
  ...for the catalyst during the manufacture of polyethylene by the Sclairtech process. ...l the aluminium hydroxide used commercially is manufactured by the [[Bayer process]] which involves dissolving bauxite in sodium hydroxide as the first step.
  10 KB (1,283 words) - 16:49, 27 September 2010
• Glucose
  ...of hours in aqueous solution, to a final stable ratio of α:β 36:64, in a process called [[mutarotation]].<ref>{{McMurry2nd | page = 866}}.</ref> The ratio w ...n animals and fungi, glucose results from the breakdown of [[glycogen]], a process known as [[glycogenolysis]]. In plants the breakdown substrate is [[starch]
  23 KB (3,050 words) - 16:52, 27 September 2010
• Nitrous oxide
  ...lysis]] synthesis of nitrous oxide mentioned above. This capital-intensive process, which originates in Japan, uses a [[manganese dioxide]]-[[bismuth oxide]]
  61 KB (8,728 words) - 16:50, 27 September 2010
• Mercury (element)
  ...s process continues until the supply of amalgam is exhausted. Because this process releases mercury, a small amount of mercury can "eat through" a large amoun ...(even by a recent scratch), the mercury may combine with it, starting the process described above, and potentially damaging a large part of the aluminium bef
  69 KB (10,077 words) - 21:35, 20 September 2010
• Morphine
  ...at the intake appointment to begin the methadone maintenance or withdrawal process; two urine tests positive for opioids must then be collected shortly therea ...back and extremities occur, as do muscle spasms. At any point during this process, a suitable narcotic can be administered that will dramatically reverse the
  87 KB (12,376 words) - 16:51, 27 September 2010
• Aconitum
  ...the herb is detoxified according to the [[Samskara (Ayurvedic)|samskaras]] process and studies, cited in the detoxification section below show that it no long
  29 KB (4,043 words) - 12:26, 7 July 2010
• Toxicodendron vernicifluum
  Artistic application and decoration of urushi can be a long process, requiring many hours or days of careful and repetitive layers and drying t
  5 KB (693 words) - 12:26, 7 July 2010
• Propædia
  ...sp;Government:&nbsp;the&nbsp;Dynamics&nbsp;of&nbsp;the&nbsp;Political&nbsp;Process '''5.4.4'''&nbsp;[[International relations|International&nbsp;Relations]]:& '''7.2.4'''&nbsp;[[Resource extraction|Extraction]]&nbsp;and&nbsp;[[Process industries|Conversion]]&nbsp;of&nbsp;[[Industry|Industrial]]&nbsp;[[Raw mat
  41 KB (5,585 words) - 13:32, 19 September 2010
• Mydriasis
  ...ne finally occur. When a solution of cocaine is dropped into the eye, this process takes place, and the end result is dilation of the pupil. Cocaine itself is
  9 KB (1,223 words) - 09:40, 20 September 2010
• Bingham plastic
  ...hpaste]]<ref name=Steffe>J. F. Steffe (1996) ''Rheological Methods in Food Process Engineering'' 2nd ed ISBN 0-9632036-1-4</ref>, which will not be [[extruded
  4 KB (621 words) - 10:07, 20 September 2010
• Glass microsphere
  ...rilling equipment, where other types of foam would [[Implosion (mechanical process)|implode]]. Hollow spheres of other materials create syntactic foams with ...by heating tiny droplets of dissolved [[sodium silicate|water glass]] in a process known as [[ultrasound|ultrasonic]] spray [[pyrolysis]], and properties can
  5 KB (783 words) - 10:07, 20 September 2010
• Mesoporous material
  ...nctionalization of a Mesoporous Silica Nanoparticle Based on the Sol–Gel Process and Applications in Controlled Release|journal=Accounts of Chemical Researc
  5 KB (655 words) - 10:07, 20 September 2010
• Mineral wool
  ...n spinning molten rock on high speed [[spinning wheel]]s somewhat like the process used to prepare [[cotton candy]]. The final product is a mass of fine, inte
  9 KB (1,270 words) - 10:08, 20 September 2010
• E-Leather
  ...no harmful waste-waters in the manufacture of its composition leather. Its process is a continuous [closed-looped] system with 95% of water recycled, while a
  4 KB (509 words) - 10:09, 20 September 2010
• Photoresist
  ...sit their energy gradually, and scatter within the photoresist during this process. As with high-energy wavelengths, many transitions are excited by electron ...on-beam exposures to increase the sensitivity to the exposure dose. In the process, [[acid]]s released by the exposure radiation diffuse during the post-expos
  16 KB (2,176 words) - 10:09, 20 September 2010
• Molecular imprinted polymer
  ...tional groups and should not be polymerisable or retard the polymerisation process. ==Imprinting process==
  4 KB (446 words) - 10:09, 20 September 2010
• Superabsorbent polymer
  ...merization's own reaction energy (exothermic) is used to drive much of the process, helping reduce manufacturing cost. The reactant polymer gel is then choppe ...roduction control and product engineering during polymerization step. This process suspends the water based reactant in a hydrocarbon based solvent. The net r
  9 KB (1,214 words) - 10:09, 20 September 2010
• Parylene
  ...decomposition of di-p-xylylene at 550 °C and in vacuum below 1 Torr. This process did not require a solvent and resulted in chemically resistant films free f
  8 KB (1,048 words) - 10:09, 20 September 2010
• Polymer nanocomposite
  ...l or synthetic polymers available and the advanced techniques developed to process such systems to nanofibres, rods, tubes etc make polymers a good platform f ...ly, whereas polymers of sufficient chain length just cover the walls. This process happens typically within a minute for temperatures about 50 K above the mel
  15 KB (2,273 words) - 10:09, 20 September 2010
• Shape memory polymer
  ...If the force is applied for a longer period of time, however, a relaxation process takes place whereby a plastic, irreversible deformation of the sample takes
  21 KB (2,974 words) - 10:09, 20 September 2010
• Synthetic biodegradable polymer
  ...ious factors which include [[monomer]] selection, [[initiator]] selection, process conditions and the presence of additives. These factors influence the polym ...ture that may result in monomer formation during the molding and extrusion process.
  8 KB (1,069 words) - 10:09, 20 September 2010
• Biopolymer
  ...re [[compostable]]. That is, they can be put into an industrial composting process and will break down by 90% within 6 months. Biopolymers that do this can be In fact, as their synthesis is controlled by a template directed process in most in vivo systems all biopolymers of a type (say one specific protein
  68 KB (9,959 words) - 10:10, 20 September 2010
• Polypropylene
  ...e plastic mold more easily during the injection or blow-molding production process. As the melt flow increases, however, some physical properties, like impact ...ocessing of polypropylene can be achieved via [[extrusion]] and [[Molding (process)|molding]]. Common extrusion methods include production of melt-blown and s
  25 KB (3,657 words) - 10:10, 20 September 2010
• Ion-exchange resin
  ...ions takes place only with simultaneous releasing of other ions; thus the process is called [[ion-exchange]]. There are multiple different types of ion-excha ...adding 0.5-25% of [[divinylbenzene]] to [[styrene]] at the polymerization process. Non-crosslinked polymers are used only rarely because they are less stable
  10 KB (1,392 words) - 10:10, 20 September 2010
• Fire-safe polymers
  ...A general scheme of [[polymer]] [[combustion]].]] <br />The [[combustion]] process begins when heating a [[polymer]] yields [[Volatility (chemistry)|volatile] ...ication of different types of [[fire retardant]]s during the manufacturing process as well as applications of [[fire retardant]]s (especially [[intumescent]]
  17 KB (2,260 words) - 10:10, 20 September 2010
• Conductive polymer
  ...ies, toxicity, poor solubility in solvents, and inability to directly melt process. Literature suggests they're also promising in [[organic solar cells]], [[P
  22 KB (3,022 words) - 10:10, 20 September 2010
• Polyethylene terephthalate
  ...bed. Finally the cool dry air leaving the desiccant bed is re-heated in a process heater and sent back through the same processes in a closed loop. Typically In the second process, the preforms are heated rapidly and then inflated against a two-part mold
  43 KB (6,272 words) - 10:11, 20 September 2010
• Shellac
  ...ace the natural wax of the [[apple]], which is removed during the cleaning process.<ref>[http://www.usapple.org/consumers/wax.cfm US Apple: Consumers - FAQs:
  18 KB (2,760 words) - 10:11, 20 September 2010
• Polymer
  ...nown as monomers into a covalently bonded chain. During the polymerization process, some chemical groups may be lost from each monomer. This is the case, for ...Among other applications, this process is used to strengthen rubbers in a process known as [[vulcanization]], which is based on crosslinking by sulfur. Car t
  45 KB (6,501 words) - 10:11, 20 September 2010
• Antimicrobial polymers
  ...microbial polymers must be positively charged to facilitate the adsorption process. The structure of the [[counter ion]], or the ion associated with the polym
  26 KB (3,675 words) - 10:11, 20 September 2010
• Polyprenol
  ...logically active), playing a significant modulating role in the [[cellular process]] in plants referred to as [[biosynthesis]]. The [[dolichol]] phosphate cycle facilitates the process of cellular membrane [[glycosylation]], that is, the synthesis of [[glycopr
  9 KB (1,206 words) - 10:11, 20 September 2010
• Polycarbonate
  ...est grades have the highest molecular mass, but are much more difficult to process.
  20 KB (2,772 words) - 10:11, 20 September 2010
• Crystallization of polymers
  '''Crystallization of polymers''' is a process associated with partial alignment of their molecular chains. These chains f ...eeds even below T_g, in the time scale of months and years. This process affects mechanical properties of the polymers and decreases their volume be
  18 KB (2,533 words) - 10:11, 20 September 2010
• Polyethylene glycol
  ...also available dependent on the [[initiator]] used for the polymerization process, the most common of which is a monofunctional methyl ether PEG (methoxypoly ...[[polydispersity]]. [[Polymerization]] of ethylene oxide is an exothermic process. Overheating or contaminating ethylene oxide with catalysts such as alkalis
  20 KB (2,883 words) - 10:12, 20 September 2010
• Automatic Continuous Online Monitoring of Polymerization Reactions
  ...ions presents manufacturers with a tool to improve the efficiency of their process by instantly seeing the properties of the polymers as they produce them ess ...ficiency and product quality can be achieved through online adjustments to process variables, such as temperature, pressure, reagent feed rates, reaction time
  14 KB (1,877 words) - 10:12, 20 September 2010
• Particle size distribution
  ...is that the technique can generate a continuous measurement for analyzing process streams.
  16 KB (2,356 words) - 10:12, 20 September 2010
• Petroleum
  ...and medium oil are depleted, [[oil refineries]] are increasingly having to process heavy oil and bitumen, and use more complex and expensive methods to produc ...world, and then with more heat into liquid and gaseous hydrocarbons via a process known as [[catagenesis (geology)|catagenesis]].
  69 KB (9,885 words) - 10:12, 20 September 2010
• Emulsion
  ...g (chemistry)|creaming]], and [[coalescence]]. Flocculation describes the process by which the dispersed phase comes out of suspension in flakes. [[coalesce The kinetic process of destabilisation can be rather long (up to several months or even years f
  16 KB (2,286 words) - 10:12, 20 September 2010
• Colloid
  ...rt]] below. As well as these naturally occurring colloids, modern chemical process industries utilize [[High shear mixer|high shear mixing technology]] to cre The kinetic process of destabilisation can be rather long (up to several months or even years f
  27 KB (3,735 words) - 10:13, 20 September 2010
• Depleted uranium
  ...roduct ([[uranium hexafluoride]]). There was some hope that the enrichment process would be improved and [[Nuclear fission|fission]]able [[isotope]]s of U-235 ...rcent [[Uranium-234|U-234]]. In order to produce [[enriched uranium]], the process of [[isotope separation]] removes a substantial portion of the U-235 for us
  80 KB (11,721 words) - 10:13, 20 September 2010
• Refractory metals
  ...brication (metal)|fabricated]] by [[Casting (metalworking)|casting]]. The process of [[powder metallurgy]] is used. Powders of the pure metal are compacted, ...powder metallurgy]] applications binders have to be used for the sintering process. For the production of the tungsten heavy alloy a binder mixtures of [[nic
  25 KB (3,519 words) - 10:13, 20 September 2010
• Ruthenium
  ...t into solution. Several methods are available depending on the separation process and the composition of the mixture; two representative methods are fusion w ...y of Value Fission Platinoids from Spent Nuclear Fuel. Part II: Separation Process| url =http://www.platinummetalsreview.com/pdf/pmr-v47-i2-074-087.pdf|first1
  39 KB (5,430 words) - 10:13, 20 September 2010
• Building insulation materials
  ...ops once an equilibrium with the environment is reached. Even after this process, the stabilized R-value is very high. There are two manufacturing process :
  49 KB (7,250 words) - 10:14, 20 September 2010
• Polystyrene
  ...flows if heated above its [[glass transition temperature]] (for [[Molding (process)|molding]] or extrusion), and becomes solid again when cooled. Pure solid p ...identified the formation of metastyrol from styrol as a [[polymerization]] process. About 80 years went by before it was realized that heating of styrol start
  36 KB (5,017 words) - 10:14, 20 September 2010

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