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Popular Mechanics

A recently popular mechanism involves the intersystem crossing of the cis- or trons-stilbene singlet state, produced upon direct photolysis, to its corresponding triplet states, which would then undergo the type of reactions given in Eqs. (9.8M9.10) and (9.17M9.19) ... [Pg.195]

Briefly discuss the popular mechanisms related to adhesion and the general types of adhesives. [Pg.580]

Booth, S.A. Video To Go Camcorders, Popular Mechanics, 38 (January 1991). Cipra, B.A. Image Capture by Computer, Science, 1288 (March 10, 1989). Corcoran, E. Not Just a Pretty Face Compressing Pictures with Fractals, Sci. Amer., 77 (March 1990). [Pg.1294]

Dane, A. America s Oil Tanker Mess, Popular Mechanics, 51 (November 1989). Dane, A. Oil Slick Blister, Popular Mechanics, 58 (May 1990). [Pg.1734]

Dane, A. Learning from Disasier, Popular Mechanics, 94 (September 1991). Duedall. I.W. A Brief History of Ocean Disposal. Oceanus, 29 (Summer 1990). Eckenfelder, W.W.. Jr. Industrial Waier Pollmion Control, 3rd Edition. The McGraw-Hill Companies. Inc., New York, NY. 1999. [Pg.1734]

Today, the perepoxide intermediate proposed earlier by Sharp [35] seems to be the most popular mechanism that found support from results derived from kinetic isotope effects, stereochemical studies, trapping experiments [36-38], and theoretical calculations [39 43],... [Pg.246]

A. Turnbull, Ocean-grown homes, in Popular Mechanics, September 1997, http //www. popularmechanics.com/popmech/sci/9709STRSM.html. [Pg.13]

Nurses Wear Grotesque Masks for Gas Drill Popular Mechanics 1931... [Pg.121]

POPULAR MECHANICS FEBRUARY/ 1940 Burglar Alarm Fires Cartridge... [Pg.9]

GM testing Volt s battery, iPhone-like dash on track to 2010. April 4, 2008. Popular Mechanics, popularmechanics.com. [Pg.187]

The most popular mechanisms at present invoke oxonium ylides as intermediates. van den Berg et al. [20] proposed that DME is protonated by a Bronsted site, and the resultant ion suffers nucleophilic attack by a second molecule of DME to form TMO with release of MeOH. The TMO ion is then deprotonated by a basic site to form the dimethyloxonium methylide, which undergoes a Stevens-type rearrangement to give methylethyl-oxonium ion. MeOEt is subsequently formed upon p— elimination. No experimental evidence was offered in support of the scheme. [Pg.602]

For those who like medieval weaponry, to reproduce as working models, or as attractive wall hangings to sell, the Popular Mechanics series will be appreciated. [Pg.1]

Irrespective of the free surfactant s effect on the maxima in associative thickener viscosity efficiency, the sum of the maxima in the viscosity of the associative thickener and surfactant and of the latex does not equal the viscosity of the combined components in a coating. A synergistic viscosity increase from an interaction between the thickener and the latex is required to account for the total viscosity observed (26). The most popular mechanism for association is the adsorption of the thickener s hydrophobe(s) on the surface of the latex. [Pg.517]

Metals such as titanium, stainless steel, nitinol, cobalt-chrome alloys, etc., are used in many devices. Generally, these are metals with passive surfaces or surfaces that can be passivated. Silver has been used as a coating designed to resist infection. Glassy carbons have also been used as coatings to render surfaces thromboresistant. Pyrolytic carbon structures or coatings on graphite have been utilized in the fabrication of bileaflet heart valves. These are the most popular mechanical valves in use today. [Pg.329]

Mechanical Steering. The simplest method of beam steering is to use a mechanism to reorient a transducer (usually a circular aperture) to a predetermined set of orientations so as to capture the required two-dimensional data set. This approach was dominant at first however, in the last 15 years, electronically steered systems have become, by far, the most popular. Mechanical systems usually use either a single-element transducer or an annular array transducer (Fig. 25.8). Tlie former will have a fixed focus while the latter does allow the focal point to be moved electronically. This will be discussed more fiilly later. [Pg.645]

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See also in sourсe #XX -- [ Pg.23 , Pg.67 , Pg.72 ]



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