Subassemblies

Upon completion of tlie inspection process the results were reviewed, and the following requirements were defined for each major component of the hot gas expander and its respective subassemblies ... 

FMEA can be used to provide a quantitative measure of the risk for a design. Because it can be applied hierarchically from system through subassembly and component levels down to individual dimensions and characteristics, it follows the progress of the design into detail. FMEA also lists potential failure modes and rates their Severity (S), Occurrence (O) and Detectability ( )). It therefore provides a possible means for linking potential variability risks with consequent design acceptability and associated costs. Note that the ratings of Occurrence and Detectability are equated to probability levels. 

Most produets have a number of eomponents, subassemblies and assemblies whieh all must funetion in order that the produet system funetions. Eaeh eomponent eontri-butes to the overall system performanee and reliability. A eommon eonfiguration is the series system, where the multiplieation of the individual eomponent reliabilities in the system, Rj, gives the overall system reliability, as shown by equation 4.67. It applies to system reliability when the individual reliabilities are statistieally independent (Leiteh, 1995) ... 

A key success factor for reducing the costs and lead times for vehicle manufacturers, for example, is the degree of integration of the suppliers within the product development process. This is seen as a natural extension to concurrent engineering principles (Wyatt et al., 1998). For many years, in engineering companies, a substantial proportion of the finished product, typically two thirds, consists of components or subassemblies produced by suppliers (Noori and Radford, 1995). 

There are four major subassemblies in the overall eombustion system the preburner, the main fuel injeetor, the eatalytie reaetor. 

The filtration area of large table filters is more than 200 m and having few moving parts can rotate at a cycle time of 1.5 minutes. These machines can handle thick cakes and may be operated at high vacuum levels. The major subassemblies of the machine include ... 

Easy maintenance access must be provided. Removable roof panels for access to furnace subassemblies are desirable. Water-cooled equipment, electrode, and roof movement mechanisms, etc. all require overhead access for proper maintenance. 

Fabrication of baghouses can be of modular design, factory-welded subassemblies, or structural design. The selection of the type of fabrication depends on size of unit, transportation requirements, site location, physical location of unit at plant (e.g., on roof), and materials of construction. 

Factory-welded subassemblies are based on separate fabrication of bag housing, dust hopper, inlet plenum, outlet plenums, etc., to form the largest subassemblies that can be shipped over the road. Connections are made to adjacent components by welding or bolting at the job site. Bags can be already... 

End-Product Parameter—parameter that characterizes the product at the finished product stage. This may be piece parts, subassemblies and/or assemblies. 

The plant may comprise one or more complete factory-made units or may be built up on-site from subassemblies. There can be variations from the arrangements discussed below and shown in Figure 29.3. The condition or quantity of air input to the conditioned space (referred to below as the room) must be varied such that after it has gained or lost heat or moisture by the applied load its condition and therefore the room condition is as specified. 

Welded Welded joints connect the subassemblies of some fluid power systems, especially in high-pressure systems that use pipe for fluid lines. The welding is done according to standard specifications that define the materials and techniques. 

Projectile, 8 Inch, M422, Parts, and Subassemblies, Beryllium... 

Chartered Metal Industries Toolroom in Singapore produces a wide range of standard and customized products to support manufacturers in the metal industries. Their production includes high-volume, batch-run precision parts, prototype components, subassemblies, tooling, fixtures, and gauges. 

The Mass Spectrometer Module houses the vacuum system, capillary interface assembly, and ion-trap mass spectrometer in approximately half of the module. Also included are the reagent gas and calibration gas subassembly (a temperature-controlled housing that ensures consistent gas pressures). The other half contains the electronic printed circuit boards, power supplies, and instrument control computer. 

Complex viruses Some virions are even more complex, being composed of several separate parts, with separate shapes and symmetries. The most complicated viruses in terms of structure are some of the bacterial viruses, which possess not only icosahedral heads but helical tails. In some bacterial viruses, such as the T4 virus of Escherichia coli, the tail itself is a complex structure. For instance, T4 has almost 20 separate proteins in the tail, and the T4 head has several more proteins. In such complex viruses, assembly is also complex. For instance, in T4 the complete tail is formed as a subassembly, and then the tail is added to the DNA-containing head. Finally, tail fibers formed from another protein are added to make the mature, infectious virus particle. 

Piping Subassemblies. Piping subassemblies may be tested either separately or as assembled piping. 

Laminates for critical microwave components, antennae and subassemblies, RF/ microwave materials, hybrid RF multilayers, digital/microwave hybrid multilayer PCB assemblies, cellular base station antennae. .. 

An alternative SOFC configuration, based on the corrugated monolithic concept, was first proposed by the Argonne National Laboratories (Fee et al, 1986). The design is shown schematically in Fig. 11.26(h). The cells incorporate two triple layer subassemblies each prepared by... 

General Safety Precautions. The preparation and handling of the items covered by this specification, and the subassemblies thereof, involve hazardous operations and therefore require explosives safety precautions. Use of this specification will not be construed as to relieve the contractor or manufacturer of responsibility for the safety of his operations. Listed below are certain minimum provisions which a contractor or manufacturer (who prepares the item covered) should observe in order to fulfill his responsibility for safety. At Bureau of Naval Weapons, Navy Department, and other government plants, these provisions are mandatory. Such other warnings and precautions, pertinent to the operational effectiveness or safety during preparation of the specified items, are included in detailed technical requirements of the specification... 

Where traceability is specified, the product and subassemblies of the product have unique recorded identification. 

DNA polymerase III can polymerize DNA, but with a much lower processivity than one would expect for the organized replication of an entire chromosome. The necessary increase in processivity is provided by the addition of the J8 subunits, four of which complete the DNA polymerase III holoenzyme. The J3 subunits associate in pairs to form donut-shaped structures that encircle the DNA and act like clamps (Fig. 25-10b). Each dimer associates with a core subassembly of polymerase III (one dimeric clamp per core subassembly) and slides along the DNA as replication proceeds. The J8 sliding clamp prevents the dissociation of DNA polymerase III from DNA, dramatically increasing processivity—to greater than 500,000 (Table 25-1). 

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