Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Multiple designs

This equation shows that at a constant gas velocity, q/F, the length of the chamber, L, is proportional to the height of the chamber, H. Obviously, the smaller the height, the smaller the chamber length required for a desired separation, which explains the advantage of a multiplate design over a simple chamber. Because the smallest particles will settle according to Stokes law, we may combine the above expressions ... [Pg.415]

Mounting a clinical trial in child psychopharmacology requires the integration of considerable clinical and research expertise. Attention must be paid to multiple design and methodological aspects, and scientific goals... [Pg.722]

The problem might also entail multiple stages if it is intended to model multiple design decision periods. See Birge and Louveaux (1997, pp. 59-60) for a discussion of the issue. [Pg.116]

In this paper, we extend the work of [10] by simultaneously considering minimization of the total utility consumption, maximization of operational flexibility to source-stream temperatures, and even minimum number of matches as multiple design objectives. The flexible HEN synthesis problem is thus formulated as the one of multi-objective mixed-integer linear programming (MO-MILP). This formulation also assumes that the feasible region in the space of uncertain input parameters is convex, so that the optimal solution can thus be explored on the basis of the vertices... [Pg.89]

Random error is an error resulting from typical fluctuations in the experimental field. The value decreases in the case of multiple designation of the same analyte in samples of the same material. It is not possible to calculate this error for a single result, nor to predict its value. In spite of their low value, these errors are the basis for calculating precision and are a component of the uncertainty of analytical results [2]. [Pg.20]

If you want a more rigorous method of comparing multiple design concepts against performance and perception expectations, use a Pugh Matrix (Technique 36). [Pg.211]

In its formal configuration, LCA is almost always used for a comparative study -evaluating multiple designs or decision alternatives. The comparison is performed on the basis of a functional unit, which may be a physical unit (e.g., a pound of a chemical product or a piece of gadget) or a service unit. The latter is usually... [Pg.166]

In the following, we introduce the tool support provided by the AHEAD system with the help of a small demo session. The demo refers to the overall reference process of IMPROVE, namely the design of a chemical plant for producing Polyamide-6 (see Sect. 1.2). Here, we focus on the design of the reaction which proceeds as follows After an initial PFD has been created which contains multiple design variants, each of these variants is explored by means of simulations and (if required) laboratory experiments. In a final step, these alternatives are compared against each other, and the most appropriate one is selected. Other parts of the reference process will be addressed in subsequent sections of this paper. [Pg.310]

Au, S. K., Papadimitriou, C. and Beck, J. L. Reliability of uncertain dynamical systems with multiple design points. Structural Safety 21(2) (1999), 113-133. [Pg.279]

There ensued a period of rapid innovation in which multiple designs were brought to the market place. The vast majority of cat crackers today operate with some form of quick disengaging of hydrocarbon and catalyst for improved yield selectivities. [Pg.224]

This definition stresses the parallel, concurrent, execution of product and process design activities by integrating multiple design disciplines and upstream and downstream functions involved in the lifecycle of a product. Many studies have been devoted since then on further defining this concept. CE is known under various different names, like Simultaneous Engineering, Concurrent Product Development, and Integrated Product Development with definitions slightly different from the one above (see e.g., [4, 5]). [Pg.24]

Polyimide (7) containing multiple designed chain-folds, as shown in Figure 13, and a pyrenyl-end-capped polysiloxane... [Pg.2559]

These novel chemistries have been strongly considered for use in TE applications and as such they have been optimized for multiple design features both in terms of the chemistry and the processing of the materials. A list of key factors affecting PU performance in orthopedic, cardiovascular, and connective TE is provided in Table 3.1. [Pg.80]

The 2002 National Electronics Manufacturing Initiative (NEMI) roadmap cited design infrastructure — education, tools, and standard practices — as a major gap that hinders broad adoption of LTCC in volume applications. Mthout this necessary design infrastructure, the design cycle relies on multiple design-build-test iterations, a highly inefficient process. [Pg.84]


See other pages where Multiple designs is mentioned: [Pg.182]    [Pg.1]    [Pg.358]    [Pg.551]    [Pg.301]    [Pg.2]    [Pg.259]    [Pg.213]    [Pg.216]    [Pg.18]    [Pg.451]    [Pg.25]    [Pg.1404]    [Pg.202]    [Pg.779]    [Pg.160]    [Pg.227]    [Pg.5]    [Pg.383]    [Pg.255]    [Pg.235]    [Pg.281]    [Pg.341]    [Pg.2159]    [Pg.142]    [Pg.578]    [Pg.579]    [Pg.648]    [Pg.676]    [Pg.558]    [Pg.41]    [Pg.84]    [Pg.250]   
See also in sourсe #XX -- [ Pg.216 ]




SEARCH



Accounts multiple designations

Design algorithms multiple reactions

Design equations multiple reactions, tubular reactors

Design for Multiple Objectives and Targets Simultaneously

Design for Multiple Pinches

Design of Reactors for Multiple Reactions

Design optimal multiple reactor

Designed multiple ligands

Designing Systems of Multiple Reverse Osmosis Modules

Multiple dose safety study, design

Multiple reactions, reactor design

Multiple-pulse sequence design principles

Multiplication loop design

Optimal Design of Chemical Processes for Multiple Economic and Environmental Objectives

Optimal multiple reactor system design

Reactor design for multiple reactions

Research design multiple-case designs

© 2024 chempedia.info