Attachment strengths from holding

When testing finished wire-rope tensile test specimens to their breaking strength, suitable sockets shall be attached by the correct method. The length of test specimen shall not be less than 3 ft (0.91 m) between sockets for wire ropes up to 1-in. (25.4 mm) diameter and not less than 5 ft (1.52 m) between sockets for wire ropes 1 -J-in. (28.6 mm) to 3-in. (77 mm) diameter. On wire ropes larger than 3 in. (77 mm), the clear length of the test specimen shall be at least 20 times the rope diameter. The test shall be valid if failure occurs 2 in. (50.8 mm) from the sockets or holding mechanism. 

Calculation of the proton affinities of the carbon atoms of the doubly-bonded pairs in propylene and isobutylene has shown that the proton affinity of the end carbon atom is greater in each case (Evans and Pol-anyi, 14). This means that the proton will add to the double bond at the CH2 more readily than at the CHCH3 or C(CH3)2. Hence, if the addition of HX to a double bond proceeds by way of initial addition of a proton, the hydrogen atom will become attached to the carbon atom holding the greater number of hydrogen atoms. Markownikoff s rule has thus been interpreted in terms of proton affinities which in turn are calculated from bond strengths and ionization potentials. 

US 5,204,399 (American) 1991 Thermally conductive thermoplastic polyimide film die attach adhesives and their preparation National Starch and Chemical Investment Holding Corp. R Edelman Adhesive formulations having excellent die shear strength A polyimide-siloxane was prepared from aromatic amines, bis aminophe-noxybutylsiloxane and aromatic dianhydrides... 

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