Deceleration mode

The purpose of the deceleration mode is to decelerate the unloaded system inertia to near zero rpm in a specified time period. As the e-stop relay switches to the deceleration mode, the brake coil is excited from the battery source at a lower, constant value voltage, which will produce sufficient torque to achieve the rated brake continuous thermal load. The system will then decelerate under a constant torque load. 

The same implanter in 14.1 is modified into deceleration mode (defined in Sect. 14.1.1), in which a reverse bias of (10 keV) is applied to the... 

The molecular sieve adsorbent traps ethylene quantitatively, thus practically freezing step 4. Ethane trapping is only partial, thus the desired step 3 is not decelerated significantly. Steps 1,3 and 4 are predominantly catalytic or electrocatalytic, depending on the mode of oxygen addition. 

In the presence of a prograde and a retrograde mode with equal characteristics, the rotation at the surface region is neither accelerated nor decelerated, and is in uniform rotation in a zero-th order. Is this state stable If the rotation profile is perturbed towards acceleration, intrinsic frequency (seen from rotating frame) of a pro-... 

The properties of a low expansion ratio foam are controlled mainly by changing the rate of the kinetic processes running in it. To decelerate the hydrodynamic processes in order to preserve its structure for a longer time (for instance, in the formation of polymer or frozen foams), the following measures can be recommended i) to use a foam generation mode that allows producing a foam of a uniform expansion ratio such are the stream type generators and some mechanical devices that mix the solutions ii) to produce a foam of maximum dispersity... 

The work of Marek s group also encompasses an interesting study of the polymerisation of isobutene by ethylaluminium dichloride in heptane between —55 and 21 This system showed all the typical traits of direct initiation through selfionisation. Indeed, addition of small amounts of water produced a decrease in the rate of polymerisation with respect to the dry medium (5 x 10 M residual water claimed). The initial rate of monomer consumption was directly proportional to the monomer concentration and the square of the catalyst concentration. The course of the first part of the polymerisations (up to about 40% yield) was internally first order. As the reaction proceeded further, a sensible deceleration was noticed and indeed incomplete yields were often obtained, confirming a general feature of direct initiation. The authors discussed the mode of initiation in terms of selfionisation of the catalyst followed by the attack of the positive ion onto the isobutene molecule, but did not comment about the origin of the anomalous rate decreases and of the limited conversions. 

Typical emission factors for metals cannot be derived from baseline characterization of auto exhaust by dynamometer tests, as performed by EPA, since attempts are made to keep variability of additives, oils, and lubricants to a minimum. Emphasis is placed rather on the eflFect of emissions as a function of variations in operating conditions. The data cited in Table X reflect this because test cycles identified as FTP, HWFET, and CFS differ significantly in the average speed (19.9, 49.9, and 35.0 mph, respectively) and in the extent of variability in operating mode (acceleration, deceleration, and cruise). 

The removal of the signal sequence which directs the transport of secreted proteins is a critical step in protein export. Extensive studies by Randall, Hardy and coworkers have demonstrated that the leader sequence prevents the proper folding of the mature polypeptide within the cytoplasm (55,54). For the E.coli 6-lactamase, the presence of the leader sequence decelerates the folding kinetics but does not prevent the formation of the enzymatically active conformation (55). Bowden and Georgiou (56) showed that the mode of translocation of 6-lactamase across the cytoplasmic membrane of Escherichia coli exerts a profound effect on the folding of the mature protein following secretion, presumably by affecting the unfolded state in the periplasmic space. 

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