Transition period

Typical pilot-plant top-suspended baskets are 305 mm (12 in) diameter by 127 mm (5 in) deep. Commercial machines are available in sizes from 508-mm (20-in) diameter by 305-mm (l2-in) depth to 1524-mm (60-in) diameter by 1016-mm (40-in) depth and develop up to 1800g in the smaller and intermediate sizes. Except in the sugar apphcation, operation with a two-speed motor (half speed for loading and full speed for purging) is typical. Hydraulic drives with variable-speed capability are commonly used in the chemical industiy To maximize the number of cycles per hour, a combination of electrical and mechanical braking is employed to minimize the deceleration period, which is a transition period of no value to the process. [Pg.1736]

In Fig. 30-25, representation of the fault detection monitoring activity, there appears to be two distinct time periods of unit operation with a transition period between the two. The mean parameter value and corresponding sample standard deviation can be calculated for each time. These means can be tested by setting the null hypothesis that the means are the same and performing the appropriate t-test. Rejecting the null hypothesis indicates that there may have been a shift in operation of the unit. Diagnosis (troubleshooting) is the next step. [Pg.2577]

In calculating the number of secondary turns needed, one needs to consider that the resonant transition period is approximately 0.5qSec within a 2.5qSec maximum period per MOSFET at 200 kHz. That corresponds to an 84 percent duty cycle. So,... [Pg.177]

Many events signaled the beginning of a lengthy transition period for the utility industry in general, and more specifically, for the facility planning activity. The timeline m many instances was blurred, with some of the blurring attributable to a reluctance to change. [Pg.1201]

Transition Period. The past few years, today, and the next few years, while new treatment processes are being developed and installed. Present day plants exhibit a mixed picture of modern abatement facilities alongside antique process units, and effluent streams range from... [Pg.799]

In high-spin species (to which the theorem is not restricted), perusal of the appropriate configurations for octahedral complexes across the transition period (see Fig. 5-1) shows that d" and configurations are candidates for the Jahn-Teller... [Pg.137]

The induction of anaerobic treatment synthesis occurs in two phases. During the first few hours of anaerobic treatment there is a transition period during which there is a rapid increase in the synthesis of a class of polypeptides with an approximate molecular weight of 33 kDa (Fig. 3). These have, been referred to as the transition polypeptides (TPs) as they represent most of the protein synthesis occurring in early anaerobiosis. [Pg.166]

The net current crossing the electrode at any time is the algebraic sum of the faradaic and various nonfaradaic currents. During the transition time, part of the net current is consumed for surface-layer charging and is not available for the primary electrode reaction. This part of the current is called the charging current It is highest at the start of the transition period, but toward the end of this period it falls to zero. The transition time of charging, depends on the value of current and on the system, and may vary within wide limits (between 0.1 ms and 1 s). [Pg.182]

The usual transitional period prior to menopause, known as perimenopause or the climacteric, is a period... [Pg.766]

The last reported case of indigenous wild-type poliovirus in the United States was in 1979 subsequent cases were all vaccine-associated. In 1997, a transition period to the inactivated poliovirus vaccine was begun to reduce the risk of vac-cine-associated paralytic poliomyelitis. By January 2000, the oral vaccine was no longer recommended for routine use. Currently, the inactivated poliovirus vaccine is recommended for routine use in the United States. The oral poliovirus vaccine is still widely used in some countries where poliovirus eradication has been more difficult. [Pg.1246]

There will be a long transitional period (the Directive foresees 10 years) before the Regulations come fully into effect. During the transition period existing national rules will contine to apply - that means CoPR will continue until all biocidal active substances have been reviewed under the biocides programme. [Pg.12]

The very beginning of the first mitotic cell cycle of the mouse embryo seems to be controlled by the mechanisms characteristic for both meiotic and mitotic cell cycles. Active MAP kinase, its substrate p90rsk and the CSF activity itself could influence the cellular processes within the one-cell embryo. Indeed, we have observed that despite the entry into the interphase (as judged by the low activity of MPF) some proteins are actively phosphorylated as during the meiotic M phase (e.g. 35 kDa complex Howlett et al 1986, Szollosi et al 1993), the nuclei and the microtubule interphase network start to form only 1.5 hours after activation (Szollosi et al 1993). This delay in the phenomena characteristic for the interphase could be linked to the mixed meiotic/mitotic character of this early period. This delay probably allows the correct transformation of the sperm nucleus into the male pronucleus. In species like Xenopus or Drosophila the transitional period between the meiotic and the mitotic cell cycle control is probably much shorter since it is proportional to duration of the short first cell cycle of these rapidly cleaving embryos. Mammalian embryos are perhaps the most suitable to study this transition because of the exceptionally long first embryonic cell cycle. [Pg.83]

Ban of the substance often with a transition period depending on the application area... [Pg.157]

The new fixative approach presents very large logistical issues, including a long transition period when both the new fixative and formalin would be in use in different laboratories across the world. In addition, archival banks for FFPE tissues would diminish in value and become worthless as techniques adapted to the new fixative tissues. On the other hand, data are... [Pg.191]

Catalytic performances in ethylene ammoxidation as function of reaction temperature of the different catalysts are compiled in Table 2. Data were collected under stationary conditions after a transition period of one hour. All catalysts are active and selective toward acetonitrile. Wherein, Cr-Cl catalyst exhibits the higher ethylene conversion and the higher acetonitrile selectivity. Chromium with highly oxidation state (VI) seems to play a key role in the ammoxidation reaction as confirmed by TPR and DRS spectroscopy results. This idea is strongly supported by the difference between catalytic behaviour of Cr03 and Cr203 supported on ZSM-5. Nevertheless, Cr(III) oxide seems to... [Pg.347]

Sequential therapy involves rapid clearing of psoriasis with aggressive therapy (e.g., cyclosporine), followed by a transitional period in which a safer drug such as acitretin is started at maximal dosing. Subsequently, a maintenance period using acitretin in lower doses or in combination with UVB or PUVA can be continued. [Pg.208]

We prefer our state charts like this, because they are easier to reconcile with the actuality of the software compared with instantaneous event models and they tie in better with the actions. In some notations, they would have an event representing the start of an action and another for the end of it, and a state in between representing the transitional period. But at a given level of abstraction, we do not know enough to characterize the intermediate state, because that is defined only in the more-detailed layers of the model. [Pg.294]

Finally it has been pointed out that, within the same transition period, the trend in >m.Co is obscured by the different promotion energies to the valence state and a trend different to that in Table 5 has been calculated for the first period (Cr = 54.2 Fe = 58.7 Ni = 45.6 kcal mol" 1) 22SK A similar effect probably occurs on descending a subgroup. [Pg.14]

Then, Dr. Mitchell hits on another problem "There is a practical problem for a commercial lab. This is that you wouldn t want to be the first boy in the block to stand up and admit the [poor] quality of your data because no one else is doing that, and you are going to look a lot worse if you are honest. So, I guess that is a real psychological block for developing data. The transition period is going to be rough."... [Pg.266]

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