Watermen

With the accumulation of results obtained from various and complex analyses of narrow cuts (Waterman method), correlations have been found f ctween refractive index, specific gravity and molecular weight on one hand, and percentages of paraffinic, naphthenic and aromatic carbon on the other. 

A. Goldsmith, H. J. Hinschhom, and T. E. Waterman, Thermophjsica/Properties of So/idMateria/s, Vol. 3, Ceramics, Armour Research Eoundation,... 

D. A. Waterman, M Guide to Expert Systems, Addison-Wesley, Reading, Mass., 1986. 

Eugenol (4-allyl-2-methoxyphenol) [97-53-0] M 164.2, b 253 /760mm, 255 /760mm, d 1.066, Dq 1.540, pK 10.19. Fractional distn gives a pale yellow liquid which darkens and thickens on in air. Should store under N2 at -20°. [Waterman and Priedster Reel Trav Chim Pays-Bas 48 1272 1929.]... 

Should be distd under reduced pressure under nitrogen and stored in the dark. Purified via the nitrosochloride [Waterman et al. Reel Trav Chim Pays-Bas 48 1191 7929]. For purification of optically active forms see Lynn [J Am Chem Sac 91 361 1919]. Small quantities (0.5mL) have been purified by GLC using helium as carrier gas and a column at 90 packed with 20 wt% of polypropylene sebacate on a Chromosorb support. Larger quantities were fractionally distd under reduced pressure in a column packed with stainless steel gauze spirals. Material could be dried with CaH2 or sodium, and stored in a refrigerator CaS04 and silica gel were not satisfactory because they induced spontaneous isomerisation. [Bates, Best and Williams 7 C/iem Soc 1521 7962.]... 

N. A. Waterman and M. F. Ashby (eds), Elsevier Materials Selector, Elsevier, Amsterdam (1991) Section 1-5. 

TF Smith, MS Waterman. Identification of common molecular subsequences. I Mol Biol 147 195-197, 1981. 

A high shape faetor in the 2-parameter model suggests less strength variability. The Weibull model ean also be used to model duetile materials at low temperatures whieh exhibit brittle failure (Faires, 1965). (See Waterman and Ashby (1991) for a detailed diseussion on modelling brittle material strength.)... 

Figure 4.15 Mechanical properties of a low carbon steel as a function of temperature (adapted from Waterman and Ashby, 1991)...

Walker, J. M. (ed.) 1996 Handbook of Manufacturing Engineering. NY Marcel Dekker. Waterman, N. A. and Ashby, M. F. (eds) 1991 Elsevier Materials Selector. Essex Elsevier Science Publishers. 

Waterman, N.A. The Selection and Use of Engineering Materials, Design Council, London (1979) Crane, F.A.C. and Charles, J.A. Selection and Use of Engineering Materials Butterworths, London (1984)... 

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