Considerations for Selection

In most cases volume requirement is the primary consideration for selecting the most cost-effective process. However, in many cases a lower volume process may be used during initial phases of a program and then be replaced by a higher volume process when the product has gained field acceptance. 

After the project begins to take shape and preliminary layouts of the over-all as well as sections of the plant are partially complete, design work by the other phases of engineering will require the answering of questions as well as evaluating details of a particular phase as they are related to the process performance. Some useful considerations for selected details are given by Thompson [17] and Lud-... 

Engineering thermoplastics, 10 168-228 categories of, 10 169, 170-171t chemical resistance of, 10 224, 225t considerations for selecting, 10 220-222 costs of, 10 222-223 electrical properties of, 10 223 fluorine-containing polymers,... 

No advantage over cephaiexin cost should be major consideration for selection of first-generation cephalosporins... 

When selecting the pressure for an extraction, a good rule of thumb is that the lower the analyte molecular weight, the less pressure density is required for compound solubilization. A second consideration for selecting a pressure level relates to polarity and polar interactions the more polar an analyte is or the more tightly it is bound to the matrix, the greater the pressure-density required for the dissolution and removal of the analyte from the matrix. 

Seawater as mentioned earlier is mostly the process cooling fluid for coastal based power plants. The main design considerations for selection of corrosion protection measures for seawater-based process cooling systems are ... 

Generic considerations for selecting ecosystem measures based... 

Other consideration for selective separation are related to the basic principles of ion exchange. For example, cation displacement should proceed until the column is loaded to capacity with plutonium and americium. If this procedure is not employed, the excess resin simply sorbs the displaced cations (e.g., Mg, Na, K, Ca, etc.) and they are rejoined with the actinides during the elution cycle. 

General considerations for selecting assessment and measurement endpoints are detailed in the following boxes. More detailed discussions of endpoints and selection criteria can be found in Suter (1989, 1990a), Kelly and Harwell (1990), U.S. Department of the Interior (1987), and U.S. EPA (1990a). 

Poultry wastes are equally problematic to meat wastes. Starkey (2000) reviewed the considerations for selection of a treatment system for poultry processing wastewater, including land availability, previous site history, publicly owned treatment work discharge, conventional waste... 

There are many different kinds of materials used in the construction of a nuclear facility. Once constructed, these materials are subjected to environments and operating conditions that may lead to material problems. This chapter discusses considerations for selection and application of plant materials. 

A reflector gets its name from the fact that neutrons leaving the reactor core hit the reflector and are returned to the core. The primary consideration for selecting a reflector material is its nuclear properties. The essential requirements for reflector material used in a thermal reactor are ... 

Before solvent bonding, the microchannels must be filled with PCSL. Some practical considerations for selecting a material for a sacrificial layer are (1) it should have a lower melting point than the substrate itself (2) it must be resistant to the bonding solvent (3) it should not react with the polymer substrate (4) it should form a smooth surface after solidification and (5) it must be easy to remove from the microchannel after bonding. 

Additional considerations for selecting an adhesive for plastics in collections are that ... 

There are some considerations for selecting components and sub-systems to be used in a SIS. The first option is that the components be designed in accordance with lEC 61508-2 (requirements for electrical/electronic/programmable electronic safety-related systems) and lEC 61508-3 (software requirements). The second option is to use components and sub-systems that are known to be reliable through extensive use in similar service and in a similar environment. 

The number of samples that need to be analyzed likely increases as the drug development proceeds to clinic stages. When an immunoassay is well developed and characterized, sample analysis can be sensitive, fast, and cost effective. Similarly, the considerations for selecting an LC—MS/MS assay or an immunoassay could follow the same approach at different stages of biomarker development, validation, and application. 

Whether liquid is clear or contains suspended solids (This is an important consideration for selection of open/semiopen/closed impeller)... 

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