Seat location

Williams, A. F. and P. Zador (1977). Injuries to children in automobiles in relation to seating location and restraint use. Accid, Anal Prev., 9(1), 69-76. 

During the first introductions, the team facilitator should take notes on each individual. I have found it most useful to draw a seating chart of the room and write each person s name at his or her seating location on the chart. Then after the introductions, I can call on each participant by name, usually just the first name. In this way, I quickly learn... 

A small amount of particleboard is made with a fire-retardant treatment for use in locations where codes require this material, as in some offices and elevators. Particleboards receive overlay and finishing treatments with ease. Wood veneers, melamine overlays, printed paper overlays, vinyl overlays, foils, and direct grain printing can all be done quite simply. A small amount of particleboard is also made in the form of shaped, molded articles such as furniture parts, paper roU plugs, bmsh bases, and even toilet seats. There is another small increment of particleboard made by the extmsion process. These products are made in small captive operations owned by furniture manufacturers which consume all of this production in their furniture. The extmsion process differs from conventional flat-pressed particleboard in that the wood furnish is forced between two stationary heated surfaces. The mats are formed from one edge and this edge is alternately formed and pushed between the heated platens, which are maintained at a distance equal to the thickness of board produced. This is an old, slow, small-scale process, but is stiU in use in at least one location. 

Disclosing waxes or pressure indicating pastes, are used in fitting a dental appHance to estabhsh the location and extent of high spots or pressure areas, as on impressions and complete dentures. They are very soft, salve-like compositions that are painted onto the tissue side of an impression or denture. When the wax-coated denture is seated in the mouth, the soft paste is forced out of the areas showing hard contact between the denture and the mucous membrane. These areas on the denture can be easily marked and material removed from the denture to reheve the premature or hard contact. 

At each of the measurement locations, pressure probes may be attached to a harness, and these probes will direct the air flow to external pressure transducers for measurement while serving as a sheath for the appropriate thermocouple at that location (each thermocouple will be seated inside a pressure probe). 

The dummy tubes do not pass through the tubesheets, and can be located close to the inside of the shell. The seating strips extend from baffle to baffle in a longitudinal direction and effectively channel the fluid across the tubes to minimize turbulence and heat transfer. On some fixed tubesheet designs, the outer tubes are in close proximity to the inside of the shell so that by-pass is minimal and no by-pass elimination is necessary. There are a number of... 

Process systems handling polymers and resins (e.g., butyl rubber or ethylene-propylene diene monomer rubbers) are often subject to plugging at dead-end locations such as PR valve inlets. In extreme cases, complete blockage of inlet piping and valve nozzle can result. This problem can be eliminated by the application of a flush-seated PR valve, in which dead-end areas are eliminated by placing the valve disc flush with the vessel wall, in the flow pattern of the contents. 

Used to restrict reversal of flow, check valves should not be considered as positive shut-off valves when flow is reversed, since the seating element is always in the flow stream and subject to erosion (Figures 15-9 to 15-13). A section of a line should not be considered isolated if the only batrier to flow is a check valve. On the other hand, because they do restrict backflow to very low levels, check valves installed in appropriate locations can protect equipment and minimize damage in case of a leak in the upstream line. Some of the advantages and disadvantages of the various check valve configurations are as follows ... 

Suppose we take Yankee Stadium (seating capacity, 67,000) as a model for the atom. To keep the proper scale, the nucleus would be about the size of a flea For the hydrogen atom, the flea would represent one proton. He would be located at the center of the stadium, some-... 

Thus, even under Regime 2a, the manufacturer will set in house limits (IHL) that are sufficiently narrow to reduce the risk of a recall from market (and all the attendant publicity) to very low levels. (See Fig. 2.13.) The risk resides in the possibility that a customer or a regulatory body reanalyzes samples and declares fails even if the manufacmrer s QC lab found complies. Many things could be at fault in either location, such as equipment, operator training, availability of proper standards, etc., but once a suspicion is raised in public, industrial science takes a back seat. 

As described above, a lockout device can be used as a security measure to prevent unauthorized access to aboveground valves located within chemical processing systems. Valve lockout devices are locks that are specially designed to fit over valves and valve handles to control their ability to be turned or seated. These devices can be used to lock the valve into the desired position. Once the valve is locked, it cannot be turned unless the locking device is unlocked or removed by an authorized individual. 

If the seat of a condensed phase explosion and an associated crater can be located, this can be quite helpful. Measurement of crater dimensions can enable an approximate estimate of the amount of explosive involved, and also may focus questioning of witnesses or examination of video footage from security cameras. Crater size depends on the mass and nature of the explosive, the nature of the substrate, and the position of the explosive charge relative to the substrate surface. As a first approximation, the diameter of a crater in a uniform substrate varies as the cube root of the explosive mass for a charge on or above the surface. For charges buried just below the surface, the diameter of the crater is proportional to the mass of explosive raised to the power 7/24 this factor allows for the effect of backfilling of the crater by ejected material. Intuitively (and practically), the diameter of the crater in the surface also decreases with distance of the charge above or below the surface. 

Practical experience has been that the best places to look for such residues are surfaces that were either in contact with or in close proximity to the explosive before the explosion, and also that non-porous substrates such as metals tend to be better prospects than porous surfaces. Having located the seat of the explosion one can then think about where items bearing residues are likely to have been thrown, as well as identifying any items remaining in situ which could have acted as residue collectors. For example, if a small device has exploded inside a building then nearby... 

The nose end of the bomb is closed by a sheet-steel nose cup which provides a seat for the fuze. The tail end of the bomb is closed by a sheet-steel cup with a well in its center to provide a mounting for the fin assembly. Behind the nose cup is located the dome. It separates the fuze from the filling of PT1 and forms a container for two small bags of Mg/BkPdr mixture. 

The LDPE production with tubular reactors (see Section 5.1) requires some sophisticated control valves [45]. The let-down valve (Fig. 4.2-6 B) controls the polymerization reaction via the pressure and temperature by a high-speed hydraulic actuator (9) together with an electronic hydraulic transducer. The position of the valve relative to the stem is determined by a high-resolution electronic positioner (7). The cone-shaped end of the valve stem (2), as well as the shrunk valve seat (3) are made from wear-resistant materials (e.g., sintered tungsten carbide) in order to tolerate the high differential pressure of around 3000 bar during the expansion of the polymer at that location. 

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