ENABLED OR logic

The preceding pages demonstrate that the input-output behavior of many molecular systems can already be described in terms of fundamental logic operations. It has also been suggested above that what is explicitly described is the tip of an iceberg when one takes into account the rich literature on analytical reagents in various domains. The identification and taxonomy of individual cases must be a natural 

Our recent endeavors in this area depend on the support of the Department of Education in Northern Ireland, the Engineering and Physical Sciences Research Council (UK) and the European Social Fund. 

Wolfrum in Applied Fluorescence in Chemistry, Biology and Medicine, Eds, 

Photophysics of Aromatic Molecules, Wiley, London, 1970. 

Lakowicz, Principles of Fluorescence Spectroscopy, Plenum, New York, 1983. 

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Tab. 3 Truth table for the enabled OR logic behavior of the 4 -hydroxyflavylium compound, starting from Ct at pH = 5.5.

Fig. 15 An Enabled OR logic gate and corresponding truth table.

The enabled OR - another type of gate that requires a minimum of three inputs -has just become available. Figure 15 shows the equivalent electronic representation, with the appropriate connection of AND and OR gates. In this context we note that the INHIBIT gate discussed in Section 11.10 also involves an enabling/disabling input. One strand of Pina, Maestri, and Balzani s novel exploitation of flavylium derivative photochemistry was briefly mentioned in Section 11.4. This AND logic system used protons and ultraviolet photons as the two inputs, to create a visible... 

State qualified triggering enables the oscilloscope to trigger on one source, such as the input signal itself, only after the occurrence of a specified logic pattern. The pattern acts as an enable or disable for the source. 

GATING PULSE A variable width logic pulse used to enable or prevent other electtonic events for a variable time period. 

The RoleClassLibrary allows specifying the vendor-independent requirements (i.e., the required properties) for production-system-equipment objects. A role class describes a physical or logical object as an abstraction of a concrete technical realization (e.g., a robot or a motor). In this way, a role class specifies the semantics of an object enabling automatic interpretation by a tool. Additionally, a role class allows defining attributes that are common for an object. 

The combinational logic between each flip flop is limited to one or two gates. This has restricted the effectiveness of the optimization process. A more complex logic structure between each pair of storage elements would have enabled more logic permutations to be investigated by the optimizer. 

First-order predicate calculus admits proof techniques that can be shown to be sound and complete (Lloyd, 1987). The soundness of the proof technique is important because it ensures that our methodology will not deduce results that are invalid. We are less concerned with completeness, because in most cases, although the proof technique will be complete, the theory of dominance or equivalence we have available will be incomplete for most problems. Restricting the first-order logic to be of horn clause form, enables the employment of SLD resolution, a simpler... 

In petrochemical and bulk commodity chemical manufacture, real-time process control has been a fact of life for many years. There is considerable understanding of processes and control of process parameters is usually maintained within tight specifications to ensure statistical process control to within six sigma, or the occurrence of one defect in a million. This has been enabled through the use of real-time analytical capability that works with programmable logic circuits to make small changes to various process inputs and physical parameters as required. 

The definition of the cost model is of crucial importance for controlling the behavior of the S N P optimizer. One of the central questions is whether to maximize service level, which usually means using high penalties for non and late delivery, or to maximize profits, which requires the use of realistic sale prices. In the case study scenario, the nondelivery cost levels reflect real sale prices sufficiently close to enable a profit maximization logic. 

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