Part commonality

The other analytical methods necessary to control the typical specification given in Table 5 are, for the most part, common quality-control procedures. When a chemical analysis for purity is desired, acetylation or phthalation procedures are commonly employed. In these cases, the alcohol reacts with a measured volume of either acetic or phthalic anhydride in pyridine solution. The loss in titratable acidity in the anhydride solution is a direct measure of the hydroxyl groups reacting in the sample. These procedures are generally free from interference by other functional groups, but both are affected adversely by the presence of excessive water, as this depletes the anhydride reagent strength to a level below that necessary to ensure complete reaction with the alcohol. Both procedures can be adapted to a semimicro- or even microscale deterrnination. 

Snail, Planorbis corneus, shell vs. soft parts Common carp, Cyprinus carpio 760,588 Bq/kg FW vs. 27,468 Bq/kg FW 20... 

Specificity Highly specific for the drug At least partly common for HgClj, gold salt and D-penicillamine ... 

Edible part Common name Latin name Principal colour Prineipal pigment group responsible for the eolour... 

To Cure the Stin of Hornets,. Waaps, Bees, and Spiders. Swelling may instantly bo arrested by an application of equal parts common salt and bicarbonate of soda, oissolved in warm water, and well rubbed in on the place bitten or stung. (See also No. 5929.)... 

Generally, the blow mold is a cavity representing the outside of a blow-molded part The basic structure of a blow mold consists of a cast or machined block with a cavity, cooling system, venting system, pinchoffs, flash pockets, and mounting plate. The selection of material for the construction of a blow mold is based on the consideration of such factors as thermal conductivity, durabrhty, cost of the material, the resin being processed, and the desired quality of the finished parts. Commonly used mold materials are berylHum, copper, aluminum, ampcoloy, A-2 steel, and 17-4 and 420 stainless steels. 

D CAD is the most primitive CAD modeling technique. It only creates geometry entities (Ml a 2D plane. The basic 2D geometry entities are points, lines, arcs, circles, and splines. 2D CAD can only present the part model in a plane view. It is possible to use three plane views to describe a part. Commonly, the three plane views used are the top, front, and side views. 

Collier DA (1981) The measurement and operating benefits of component part commonality. Decision Sci 12 85-96... 

Group technology—An engineering and manufacturing philosophy that identifies the physical similarity of parts (common routing) and establishes their effective production. It provides for rapid retrieval of existing designs and facilitates a cellular layout. 

In the 3C method, supply chain capacity, the first C, is the governing parameter over the amount of inventory in the system. Under 3C control, the chain should have a sufficient quantity of each part on hand or in the production process to produce to the capacity of the chain for usage of that part. This amount will be lower than an MRP-planned production because it captures the benefits of part commonality. The capacity of the supply chain can be determined by a production constraint, the CCR, or... 

The most common processing issues in working with polycarbonate-based resins are appearance defects. The most common type of aesthetic defect is the appearance of contaminant inclusions within transparent parts, commonly known as hlack specks. These defects are usually found to be degraded resin—either within the polycarbonate stream or from other resin sources—and occur when charred material, which has formed over time on the surface of the processing equipment, breaks away and... 

Lack of mixing or shear makes the type of concentrate supplied to the rotational molder unique. Typical color concentrates, in the pelletized form, is ineffective for rotational molding. The pellets lack adequate surface to melt in and color a part. Commonly all colorants and additives are blended and micro-pulverized by a concentrate house. Pigment strength achieved by micro-pulverizing is not equal to that of an extruded concentrate. The molder simply adds the blend at the time the mold is filled. This ensures that the required color is achieved. 

Injection Molding Injection molding involves slow injection of melted resin into mold cavities. The molding equipment must be constructed of corrosion-resistant metal in order to minimize corrosion and contamination. Parts commonly made via this technique include fittings, valves, and wafer carriers. 

Cement/metal (CM) failures usually indicate a problem with metal preparation or application of adhesive. They are characterised by the appearance of bare metal in the bonded area of the part. Common causes of CM failure include poor metal preparation, i.e., the presence of contamination on the metal before application of adhesive, insufficient dry film thickness of primer, failure to properly agitate the adhesive to achieve a uniform dispersion prior to application, environmental attack (salt, water) on the primer/metal interface, dry spray of primer on to the metal (which does not allow the primer to... 

Family Genus, species Part Common name... 

HP had to make trade-off decisions in its supply chain. These decisions affected product and process design. The company found that the lowest manufacturing cost for a particular product might be achieved by creating an assembly of specialized parts. This meant that each product had unique parts that could only be used in that product. There was no attempt at achieving parts commonality across products. 

A large number of organic compounds reversible or irreversibly inhibits AChE (Long, 1963), which bind either to the esteratic or the anionic subsite of AChE catalytic site or to the peripheral site of the enzymes. Most of them are S5mthetic substances, sometimes with insecticidal properties. Few natural inhibitors of AChE are known and, to date, fasciculins are the only known proteinic AChE inhibitors. They have been shown to display a powerful inhibitory activity toward mammalian AChE. lodination of Fas3 provided a fully active and specific probe of fasciculin-binding sites on rat brain AChE (Marchot et al., 1993). These authors demonstrate that fasciculins bind on a peripheral site of AChE, distinct from the catalytic site and, at least partly, common with the sites on which some cationic inhibitors and the substrate in excess bind since phosphorylation of the catalytic serine (esteratic subsite) by [l,3- H]diisopro-pyl fluorophosphate can still occur on the Fas3. In the... 

A notion of the product of all the elements satisfying a condition written n 2/ (2/)) be introduced provided they all have a part in common — that is, there is a part common to them all, so that all overlap with each other, rather than each merely overlapping with some other. D3 states that two overlapping elements have a common part when, more generally, several elements have a part common to them all, then the product of these several elements is the sum of all their common parts ... 

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