Bird-caging

BIrd-cagIng or core-popping. Sudden unloading of line such as hitting fluid with excessive speed. Improper drilling motion or jar action. Use of sheaves of too small diameter or passing line around sharp bend. 

The platinum resistance may have the form of a coil supported on a crossed mica web or of a bird-cage element, or of a bifilar wire wound on a ceramic bobbin or of a film deposited on a small ceramic substrate. The resistance can be measured using a bridge (Wheatstone bridge) or a four-wire ohmmeter (Hewlett Packard 1997). For curve fitting of the data the following equation is frequently used ... 

Isodrin (56) gives with f-butyl azidoformate an isolable triazoline (addition in position QQ) which decomposes into aziridine by chromatography over neutral alumina. 55 With tosyl azide, on the other hand, only the aziridine derivative could be isolated. Both aziridines undergo a series of transformations leading to a so-called bird-cage hydrocarbon 57. ... 

Small amounts of phosphorous can be used to vulcanize polymeric sulfur. Larger amounts yield the P4S4 bird-cage molecules mentioned in Section 6.2 on Other Phosphorous-Containing Polymers in Chapter 6, together with phosphorous-sulfur copolymers. The copolymers are hydrolytically unstable.56... 

From methylenediphosphonic acid 534 and DCC an anhydride, having a bird-cage structure 535, is obtained. ... 

Identifying the specific cues which stimulate appetitive foraging behavior in snakes will enable the efficient development of an effective inanimate lure. Various snakes, including the brown tree snake, may use visual and/or chemical cues to locate distant prey (Eich-holz Koenig, 1992 Fritts, Scott Smith, 1989 Neal, Montague James, 1993 Rodda, 1992). For the brown tree snake, the cues that are reported as dominant vary between studies. Chiszar, Kandler Smith (1988) noted that visual cues alone would elicit attack behavior and that visual cues are important because if a lure container is visibly empty, attractive effects of chemical cues may be lost (Chiszar, 1990). However, Fritts et. al (1989) showed that brown tree snakes will enter traps baited only with bird odors (bird cage litter). 

The L-10 shipping container. In the Class II configuration, consists of two SS-gal DOT 17H steel drums welded end to end. A tubular steel "bird cage" supports and centers a Specification 2R pressure vessel in which a 10-liter polyethylene bottle, carrying the plutonium nitrate solution, is carried. The annular space between the pressure vessel and drum wall is filled -with loose vertnicultte,, ... 

A Class I L-10 container designated FL-10-1, was developed by Nuclear Containers, Inc., Elizabethton, Tennessee, which incorporates a double O-ring seal for the pressure vessel and a solid fire-retardant foam in place of the conventional bird Cage and loose vermiculite. 

Thus the closo boranes (Greek KAcojSdor, a bird cage), require a total of 4n + 2 valence electrons (sometimes termed the polyhedral electron count , p.e.c.) to fill all the bonding m.o.s in the cluster. 

Defective wire rope must not be used. Defects such as corrosion or pitted surface of wire excessive wear kinks bird-caging fatigue indicated by broken wires or mechanical abuse, such as pinched or partially cut strands, should be considered sufficient reasons for removing wire rope from service. Newer wire ropes have defect indicators. 

Remove wire rope slings from service if they show kinking, crushing, bird caging or other damage resulting in distortion. See OSHA standard 29 CFR 1910.184(f)(5)(iii). 

There is kinking, crushing, bird caging, or any other damage that restricts hoist because it is not in line with the load. 

Kinks, bird caging, popped core, or knots in the working section of the wire rope. 

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