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Cycles forward

Mucus gel is propelled toward the epiglottis by a two-phase ciliary beat cycle. Forward mucus movement occurs during the effective or power phase of the cycle, when cilia fully extend and traverse an arc perpendicular to the epithelial surface (Fig. 5.24). Claw-like structures, 25-35 nm long, project from each cilia tip and appear to assist in the mechanical transfer of momentum from cilia to mucus gel. Maximum mucus velocity depends on the extent cilia penetrate the epiphase during the power phase, periciliary and mucus gel viscosity, and cilia density. [Pg.215]

Hastings No. It s clearly something we have to do. We can make strong predictions about their feeding pattern based on their locomotor activity patterns, and we should be able to puU the Uver cycle forwards and backwards by restricted feeding. We don t know the glucocorticoid profiles, which we will need to interpret the liver data. [Pg.218]

The reductive elimination in C-C cross-coupling reactions is the last step of the catalytic cycle and results in the final C-C coupling and the concomitant regeneration of the catalytic species. The generally accepted mechanism for this process is concerted and features a cyclic three-coordinated transition state (Fig. 1.11). Moreover, as reductive elimination is usually irreversible, this step is often taken for granted to be critical for the success of the whole reaction because it must pull the catalytic cycle forward. [Pg.22]

Forward-Curved Blade Blowers These blowers discharge the gas at a very high velocity. The pressure supplied by this blower is lower than that produced in the other two blade characteristics. The number of blades in such a rotor can be large—up to 50 blades—and the speed is high—usually 3600-1800 rpm in 60-cycle countries and 3000-1500 rpm in 50-cycle countries. [Pg.924]

The algorithm requires only a single force evaluation per integration cycle (computationally, force evaluations are the most expensive part of the simulation). This formulation, which is based on forward and backward expansions, guarantees time reversibility (a property of the equation of motion). [Pg.46]

After the 20K step increase in feed temperature, not much change could be observed for two minutes. Then the last thermocouple started to increase from 560 to 1200 K level, and the hot zone widened. The forward migration rate of the hot zone was about 5 cm/min. After about six minutes, the oxygen content of the cycle gas became very low and temperature slowly started to decline. With this the experiment terminated. [Pg.159]

As air pollution management moves forward, economics has a major role in reducing pollution. Multimedia considerations are forcing a blend of traditional emission reduction approaches and innovative methods for waste minimization. These efforts are directed toward full cost accounting of the life cycle of products and residuals from the manufacturing, use, and ultimate disposal of materials. [Pg.71]

As seen in Section 4.1, the major types of losses are the conduction and switching losses. Conduction losses are addressed by selecting a better power switch or rectifier with a lower conduction voltage. The synchronous rectifier can be used to reduce the conduction loss of a rectifier, but it can only be used for forward-mode topologies, and excludes the discontinuous boost-mode converters. The synchronous rectifier will improve the efficiency of a power supply about one to six percent depending upon the average operating duty cycle of the supply. For further improvements, other techniques must be pursued. [Pg.144]

Load—during the back flow the shaft torque is reduced, then restored with feed forward giving a torsional pulse with each cycle. [Pg.363]

Current feed-forward network architectures work better than the current feed-back architectures for a number of reasons. First, the capacity of feed-back networks is unimpressive. Secondly, in the running mode, feed-forward models are faster, since they need to make one pass through the system to find a solution. In contrast, feed-back networks must cycle repetitively until... [Pg.4]

Each one of these four models can be thought of as defining the response of a black-box to a tape of symbols that is fed to it, cyclically, one cell at a time. During each cycle, the black-box reads the symbol at the appropriate cell, responds to that symbol according to a set of model-specific rules, and then moves the tape forward by one cell. What type of computational model the black-box represents depends on its general response. Although a more detailed discussion of each of these types will be given in chapter 6, we mention here that the four models make up what is conventionally called the Chomsky hierarchy Each type of computational... [Pg.39]

Fundamentally, all feed-forward backpropagating nets follow the same five basic steps of a model development cycle ... [Pg.546]

Cyclic voltammetry is most commonly used to investigate the polymerization of a new monomer. Polymerization and film deposition are characterized by increasing peak currents for oxidation of the monomer on successive cycles, and the development of redox waves for the polymer at potentials below the onset of monomer oxidation. A nucleation loop, in which the current on the reverse scan is higher than on the corresponding forward scan, is commonly observed during the first cycle.56,57 These features are all illustrated in Fig. 3 for the polymerization of a substituted pyrrole.58... [Pg.554]


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