Pilot atom

This leads to the same assignments as the procedure proposed in 1966 2) and generally accepted since 910) the pilot atom (corresponding to Z) marks the side of the... 

The compound possesses a chirality plane. Before establishing the configuration, it is necessary to determine the pilot atom. This is the atom of highest priority according to the CIP rules outside the chirality plane that is directly bonded to an atom in the plane. This is indicated in the formula below with an arrow. A view from this atom onto the chirality plane shows that the atoms on the way to the cyano group will be reached by a counter-clockwise curve. The configuration is therefore Sp. 

Determination of the configuration of 39. The straight arrows designate the pilot atom. The curved arrow identifies the configuration of the structure. 

Pilocarpine [92-32-7] Piloted airblast atomizer Pilot-plant Pilot plants Pilsner Pimaric acid [127-27-5]... 

Atomic- Vapor Laser Isotope-Separation. Although the technology has been around since the 1970s, laser isotope separation has only recently matured to the point of industrialization. In particular, laser isotope separation for the production of fuel and moderators for nuclear power generation is on the threshold of pilot-plant demonstrations in several countries. In the atomic vapor laser isotope-separation (AVLIS) process, vibrationaHy cooled U metal atoms are selectively ionized by means of a high power (1—2 kW) tunable copper vapor or dye laser operated at high (kHz) repetition rates (51,59,60). 

Earlier Kern River pilot results [59,82,83] showed that a steam foam formulation based on AOS containing 16-18 carbon atoms in the hydrophobe improves sweep efficiency and oil recovery of the steam drive but propagates relatively slowly and leaves the same residual oil saturation (ROS) as steam. 

Atomizing spray wheels rotate at speeds to 20,000 rpm with peripheral speeds of 250-600 ft/sec. With nozzles, the length to diameter ratio of the dryer is 4-5 with spray wheels, the ratio is 0.5-1.0. For the final design, the experts say, pilot tests in a unit of 2 m dia should be made. 

FINGAL [Fixation in Glass of Active Liquors] A batch process for immobilizing nuclear waste in a borosilicate glass. Developed by the United Kingdom Atomic Energy Authority from 1958 and piloted at its Windscale Works 1962-1966. After a lapse of several years, the project was resumed in 1972 under the acronym HARVEST. 

HARVEST [Highly Active Residue Vitrification Experimental Studies] A process for immobilizing nuclear waste by incorporation in a borosilicate glass. Developed from FIN-GAL. Piloted by the UK Atomic Energy Authority at Sellafield, in the late 1970s, but abandoned in 1981 in favor of AVM, the French vitrification process. 

---