Christmas

For the very first section of the borehole a base from which to commence drilling is required. In a land location this will be a cemented cellar in which a conductor or stove pipe will be piled prior to the rig moving in. The cellar will accommodate the Christmas tree (an arrangement of seals and valves), once the well has been completed and the rig has moved off location (Fig. 3.13)... 

The figure on the right shows the well with a simple well completion including a production tubing with packer, a series of surface safety valves called a Christmas tree, a subsurface safety valve (SSSV), a circulating sleeve, and a series of perforations through the casing. 

The ribbon machine employs a puff-and-blow method to make incandescent light bulb envelopes (1200/min), dashbulb envelopes (2000/min), Christmas tree ornaments, and the like (Fig. 15). For larger articles, the turret chain machine also uses the puff-and-blow method, but produces less cuUet and uses individual glass gobs rather than ribbon. 

For current consoHdation, the basic circuits, used at each of the multiple power take-off points, are stacked into a Christmas tree topology to form a single power take-off terminal pair. Scale-up of these devices to commercial sizes is not expected to be a problem, as standard electrical components are available for all sizes considered. A different type of consoHdation scheme developed (117), uses dc to ac converters to connect the individual electrodes to the consoHdation point. The current from each electrode can be individually controUed by the converter, which can either absorb energy from or deHver energy to the path between the electrode and the consoHdation point. This scheme offers the potential capabiHty of controlling the current level of each electrode pair. 

Congenital deficiency of Factor IX results in hemophilia B, also known as Christmas disease, and is inherited in a sex-linked recessive manner. Instmctive is the fact that some female carriers are symptomatic. Combined deficiencies of Factors VIIFC and IX have been described. 

Oregon production of filter aids is from a deposit near Ontario, Oregon, and of pet Utter from near Christmas Valley. An extensive deposit near Terrebonne, Oregon, was operated from 1936 to 1961. Four different companies operate at least five deposits in Nevada. Of the several comparatively large deposits in Washington, only one, near Quincy, is being operated on a commercial scale (7). 

This book is well written, logically developed, and easy to read. I hope it will be widely read, not just by designers, but by everyone involved with the design of new plants, including chemists who choose the reactions to be used. Above all, 1 hope it will be read by senior managers, as they are in a position to influence the policy and culture of the company and are inclined to ask why we carry out so many studies on new projects instead of getting on with the detailed design. This book will teU them why. I can think of no better Christmas present for your company president. 

Weihnachten, f.pl. Christmas. Weihnachtswurzel, /. black hellebore. Weihrauch, m. incense specif., frankincense, ohbanum. -harz, n. incense resin specif., frankincense. 

A sniallcr-diaiiieter pipe, called tubing, is then threaded together and inserted into the casing. If it is expected that oil or gas will flow to the surface via the pressure differential between the well bore and the formation, a wellhead is installed it is equipped with valves to control the flow of oil or gas from the well. The wellhead is known as a Christmas tree. If there is not sufficient pressure differential to cause the oil and the gas to flow naturally, pumping equipment is installed at the lower end of the tubing. 

Faraday developed the laws of electrolysis between 1831 and 1834. In mid-December of 1833. he began a quantitative study of the electrolysis of several metal cations, including Sn2+, Pb2+, and Znz+. Despite taking a whole day off for Christmas, he managed to complete these experiments, write up the results of three years work, and get his paper published in the Philosophic Transactions of the Hoyal Society on January 9,1834. In this paper, Faraday introduced the basic vocabulary of electrochemistry, using for the first time the terms "anode," cathode," ion, "electrolyte," and "electrolysis."... 

As I looked out the window and into the lobby, the Mandarin Oriental, with its silver Chinese cloud motif, began to remind me of the mythical lamasery in Frank Capra s 1937 Lost Horizon. (Mr. Capra claimed the Christmas season with another classic, It s a Wonderful Life.)... 

In the nineteenth century, Humphry Davy (1778-1829) speculated that the luminosity of flames is caused by fhe production and ignition of solid particles of carbon as a resulf of the decomposition of a part of the gas. Jons Jakob Berzelius (1779-1848) is said to be the first to describe an ordinary candle flame as consisting of four disfincf zones. Davy s protege, Michael Faraday [9] (1791-1867) gave his Christmas lectures and accom-pan3ung demonstrations to a juvenile audience on "The Chemical History of a Candle" in 1848 and 1860. Around the turn of the century, modem combustion science was established based on the increased understanding of chemistry, physics, and thermodynamics. 

This narrative was first presented at Don Boyd s third annual Central Indiana Computational Chemistry Christmas Luncheon (CICCCL-3) on December 18,1997. Although it is specihc for Eli Lilly and Company, the progress and problems that transpired there were probably not too different from developments at other large, forward-looking, research-based pharmaceutical companies. 

Antihemophilic factor B, Christmas factor, plasma thromboplastin component (PTC)... 

Factor IX 415 amino acids glycosylated modified residues Mammalian cells Treatment of Christmas disease Approved for sale Must be made in mammalian cells since glycosylation and conversion of first 12 glutamate residues to pyroglutamate essential for activity... 

Kobayashi, N. et al., Betalains from Christmas cactus. Phytochemistry, 54,419, 2000. Piattelh, M. and Imperato, R, Pigments of Bougainvillea glabra. Phytochemistry, 9, 2557, 1970. 

Kobayashi, N. et al., Betalains from Christmas cactus. Phytochemistry, 54,419, 2000. 

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