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Physical implementation

In principle, innovation should be distinguished from substitution, where the latter refers to a switch to a previously known production technique. Changes in relative input prices would be a reason for substitution, as would an Increase in output sufficient to make it profitable to move to a more highly capital-intensive method of production. The distinction turns on the extent to which properties of the process to be used are already known. In practice, the distinction may not be clear-cut. Even simple substitution may involve some degree of uncertainty some properties of the new process may remain unknown until it is physically Implemented. [Pg.103]

The physical implementation of the system described in the technical design specification deliverable must be verified during the IQ. [Pg.216]

The techniques for analog-to-digital conversion can be classified into one of three fundamental principles they differ in conversion speed and sophistication of physical implementation. [Pg.167]

Genetics was born in the first years of the twentieth century with the discovery that hereditary characters are carried by molecules that are physically present in chromosomes. These molecules of heredity -the genes - are responsible for the visible structures of the organisms but do not enter into those structures, which means that in every cell there are molecules which determine the characteristics of other molecules. In 1909, Wilhelm Johannsen concluded that this distinction is similar to the difference which exists between a project and its physical implementation, and represents therefore a dichotomy of the living world which is as deep as the Cartesian dichotomy between mind and body. [Pg.217]

Next, we must decide how to combine the utility exchanger with the P/P exchanger. This could be done either in a series or parallel arrangement. Physical implementation issues may dictate this choice but it could affect controllability. Finally, we have to decide how to control the utility exchanger for best overall control performance. An example will illustrate these issues. [Pg.154]

Documentation not fnlly synchronized with system changes, often because documentation was accorded a lower priority than the physical implementation of a change... [Pg.85]

The paper is organized as follows. In Sec. 1, we introduce the main features of quantum error-correction, and, particularly, we present the already well-developed theory of quantum error-correcting codes. In Sec. 2, we present a multidimensional generalization of the quantum Zeno effect and its application to the protection of the information contained in compound systems. Moreover, we suggest a universal physical implementation of the coding and decoding steps through the non-holonomic control. Finally, in Sec. 3, we focus on the application of our method to a rubidium isotope. [Pg.139]

Appendix Physical implementation of the coding matrix by the non-holonomic control... [Pg.171]

Equations (4.17) and (4.18) constitute a causal hyperbolic system, according to the mathematical analysis of [26], which allows the physical implementation of the unsplit PML. Hence, these curvilinear absorbers do not generally create wave modes that grow linearly in time and for the majority of the problems are not vulnerable to perturbations. In the expressions written... [Pg.106]

Different is the case of physical implementation of non-linear processes. For example, an electronic system with current flow described by a non--linear differential equation has, besides flowing current to which an appropriate state variable (for example, the current intensity) is related, necessary electronic devices which are not described by the current flow equations. [Pg.125]

The ability to predict ciystal behavior in complex systems is ahead of our ability to manipulate crystal and liquid residence times. Generalizations of the MSMPR equations have been made to predict CSD with arbitrary process configurations and kinetics however, (here is no guarantee that an assumed process residence-tima cfisttfbetxm can be physically implemented to produce a customized product CSD. Size distributions In cascaded ciystallizers. for example, muhipte-effea evaporators, can be computed if kinetic... [Pg.606]

Design the chemical process, physical implementation, and manufacture and assembly methods for each of the four FIFA technology combinations, produced in quantities of 250 units/year. [Pg.179]

The dynamic simulation model has been adapted to meet the constraints of a large scale problem and of the equation solving mode of Aspen Dynamics. The final model contained more than 6000 equations. Since the change in material balance (inventory) takes place at long time scales, some substantial simplifications of the local control of units can be considered. Finally, the plantwide control problem is reduced to analyse a 3x7 system, where three outputs (concentration of impurities li, I2, and I3) should be controlled with three among five inputs (D2, SS2, Q2, D4, and Q4), in the presence of two disturbances (Fdce, X ). Because of decentralised control, at most three SISO controllers should be physically implemented. [Pg.667]

Manual control (MC) The human performs all tasks including monitoring the state of the system, generating performance options, selecting the option to perform (decision making) and physically implementing it. [Pg.479]

Batch processing (BP) Although the human generates and selects the options to be performed, they then are turned over to the system to be carried out automatically. The automation is, therefore, primarily in terms of physical implementation of tasks. [Pg.479]

NRP theorists acknowledge that since mental causal transactions are always physically implemented, they are not basic causal transactions. But they maintain they are real causal transactions nevertheless. (Compare the fact that nonbasic actions are real actions.) They hold that mental events are related to their eflfects (physical or mental) in whatever way it is that events must be related to be causally related. Thus, for example, if to be causally related, events must be subsumed under a causal law, then mental events and their effects will be subsumed under a causal law. Or if to be causally related, events must be linked by a chain of counterfactual dependence, then the eflfects of mental events will be linked to those events by a chain of counterfactual dependence. Causal transactions in which mental events participate will thus be genuine causal transactions. They are nonbasic... [Pg.69]

In case of imavailable data regarding the components but in presence of an overall imderstanding of the basic principles governing the processes that represent critical infrastructures, a Systems Dynamics approach (as mentioned earlier) can provide useful information. In this case, information about the components (and even their physical implementation) is not required and the model is constructed top-down. [Pg.1761]

Designing high performance processors requires not only high performance data-paths but also fast and efficient controllers. An appropriate controller architecture is needed, as well as an efficient physical implementation. [Pg.15]

There are several physical implementation methods that can achieve such a transform using optical near-field interactions. One is based on optical excitation transfer between quantum dots via optical near-field interactions [23, 24]. For instance, assume two cubic quantum dots whose side lengths L are a and -Jla, which we call QDa and QDb, respectively. [Pg.63]

The System Logical Level at which the safety functions are allocated to the various elements of the system logical architecture, plus the tasks to be performed by generic human-operator roles - the causes of the hazards are identified at this level, as are the Safety Integrity Requirements that limit the frequency of occurrence of each cause such that the THORs are satisfied although at this level the distinction between human and machine is made, the safety requirements which emerge from it are still independent of the actual physical implementation. [Pg.9]

Technological requirements covering the physical implementation aspect... [Pg.77]

Simulation is perceived as an essential part of the supply chain configuration process. It complements findings made using mathematical programming and other modeling approaches. In view of the high costs associated with the implementation of configuration decisions, simulation provides the means for detailed evaluation of these decisions before their physical implementation. [Pg.173]


See other pages where Physical implementation is mentioned: [Pg.296]    [Pg.161]    [Pg.127]    [Pg.94]    [Pg.28]    [Pg.131]    [Pg.138]    [Pg.154]    [Pg.155]    [Pg.157]    [Pg.180]    [Pg.574]    [Pg.422]    [Pg.273]    [Pg.278]    [Pg.345]    [Pg.278]    [Pg.45]    [Pg.69]    [Pg.75]    [Pg.75]    [Pg.75]    [Pg.103]    [Pg.751]    [Pg.982]   
See also in sourсe #XX -- [ Pg.3 , Pg.7 , Pg.232 ]




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