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Waiting defined

The RIO project have framed (ICT-induced) complexity as an important issue for risk assessment in relation to Integrated Operations (lO). We have found that the notion of wildness in wait defined a century ago actually captures an essence that will be instrumental in using complexity theory in a productive manner for risk governance related to lO. [Pg.445]

Reaction Temperature. By changing the reaction temperature, it is possible to change the octane number of the gasoline. The parameter used to characterize the reaction temperature in a reforming unit with several reactors is the weight average inlet temperature (WAIT), defined as the sum of the inlet temperature to each reactor multiplied by the weight percent of the total catalyst mass... [Pg.1928]

For the ZW (zero wait) policy idle times (slacks) between consecutively produced batches may appear in all stages including the one that defines the bottleneck. It should be noted that the slacks are only a function of consecutive pairs of batches. Therefore, the slacks for each pair of batches can easily be calculated a priori with the binary variable for any two consecutive batches ... [Pg.509]

In the molten state polymers are viscoelastic that is they exhibit properties that are a combination of viscous and elastic components. The viscoelastic properties of molten polymers are non-Newtonian, i.e., their measured properties change as a function of the rate at which they are probed. (We discussed the non-Newtonian behavior of molten polymers in Chapter 6.) Thus, if we wait long enough, a lump of molten polyethylene will spread out under its own weight, i.e., it behaves as a viscous liquid under conditions of slow flow. However, if we take the same lump of molten polymer and throw it against a solid surface it will bounce, i.e., it behaves as an elastic solid under conditions of high speed deformation. As a molten polymer cools, the thermal agitation of its molecules decreases, which reduces its free volume. The net result is an increase in its viscosity, while the elastic component of its behavior becomes more prominent. At some temperature it ceases to behave primarily as a viscous liquid and takes on the properties of a rubbery amorphous solid. There is no well defined demarcation between a polymer in its molten and rubbery amorphous states. [Pg.134]

This cautious and distant view of the innards of the box is no disadvantage to the user if the network is already primed for use in a well-defined domain and merely waiting for the user to feed it suitable data. Scientists, though, will want to employ ANNs in innovative ways, taking full advantage of their potential and flexibility this demands an appreciation of what lies within the box. It is the purpose of this chapter to lift up the lid. [Pg.12]

Such neutron densities are presumably associated with very high temperatures, leading to reverse (y, n) reactions. At each Z, neutrons are added up to a so-called waiting point (which defines the r-process path) in the waiting-point approximation , (n, y) and (y, n) reactions balance, so that for given Z, there is a Saha-type equilibrium... [Pg.219]

Allocation defines the time span between the first and the last usage of a station including unproductive waiting times. Utilization sums the times when a station is used for processing. The small difference (delta) between the degrees of allocation and utilization of station 2 shows that this station is working almost to full capacity. In contrast, the other stations have a significantly lower utilization because the vessels have to wait for station 2, which means that station 2 turns out to be a bottleneck. [Pg.50]

Short cycles The principles of rapid application development (RAD) are recommended. In particular, short development cycles with a well-defined goal at the end of each cycle are good for morale and for moving a project forward. Also, we follow the maxim Don t wait until it s 100% done for any one phase. [Pg.57]

The dispersion of this waiting time distribution, i.e., its second central moment, is a measure that we can use to define a homogenization time scale on which the dispersion is equal to that of a homogeneous (Poisson) system on a time scale given by the torsional autocorrelation time. The homogenization time scale shows a clear non-Arrhenius temperature dependence and is comparable with the time scale for dielectric relaxation at low temperatures.156... [Pg.54]

An adequate trial of an antipsychotic is defined as treatment with a demonstrable therapeutic dose for at least 6 weeks. We generally recommend a full 6 week trial of an antipsychotic before switching to another antipsychotic when the response is unsatisfactory. One exception may be the rare circumstances when there is absolutely no improvement after 2-3 weeks of treatment. In this case, we believe that it often makes sense to go ahead and switch to another antipsychotic rather than wait the full 6 weeks. [Pg.122]

Fig. 2.25 Model proposed to explain the data shown in Fig. 2.24. A4HeRh2+ ion, in its as-desorbed orientation, cannot field dissociate as explained in Fig. 2.23. It can dissociate only when it is rotated by an angle greater than 90° from its as-desorbed orientation. The maximum dissociation rate occurs when the rotation angle is 180°. If it is not dissociated during the angular rotation between 90 and 270° then it has to wait for the right orientation again. By that time, the ion is too far away from the surface and the field is too low for field dissociation to be possible. Thus a well-defined field dissociation zone exists. From the additional energy deficit of the secondary Rh2+ peaks and the field distribution above the surface, the dissociation time and the 180° rotation time of the compound ion is calculated to be 790 21 fs. Fig. 2.25 Model proposed to explain the data shown in Fig. 2.24. A4HeRh2+ ion, in its as-desorbed orientation, cannot field dissociate as explained in Fig. 2.23. It can dissociate only when it is rotated by an angle greater than 90° from its as-desorbed orientation. The maximum dissociation rate occurs when the rotation angle is 180°. If it is not dissociated during the angular rotation between 90 and 270° then it has to wait for the right orientation again. By that time, the ion is too far away from the surface and the field is too low for field dissociation to be possible. Thus a well-defined field dissociation zone exists. From the additional energy deficit of the secondary Rh2+ peaks and the field distribution above the surface, the dissociation time and the 180° rotation time of the compound ion is calculated to be 790 21 fs.
Define the goal of drug therapy. Then start with small doses and titrate to the response desired. Wait at least three... [Pg.1281]

If four half-lives (Tly ) occur between two successive bolus elutions, the growth of daughter activity will correspond to 94% of the maximum possible per bolus and the total waiting time will be defined by equation (17). [Pg.196]


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