Hale transformation

Fig. 5. The grid, distorted by the Hale transformation, used in our simulation programme. A stable species being produced on the disc gives a linear concentration gradient in w. As shown, a finer grid is used on the innermost box on the ring electrode.

Maquire, R.J., Hale, E.J. (1980) Fenitrothion sprayed on a pond Kinetics of its distribution and transformation in water and sediment. J. Agric. Food Chem. 28, 372-378. 

Asymmetric syntheses of agelastatin A rapidly followed Weinreb s racemic synthesis, with Feldman and coworkers publishing the first stereospecific approach to the natural enantiomer [68,69]. This route employed a chiral alkynyliodonium triflate-alkylidenecarbene-cyclopentene transformation to form the key intermediate 69 from which (—)-6S could be efficiently assembled. Hale et al. initially reported a chiral formal synthesis of (—[-agelastatin A through the enantiospedfic preparation of an advanced intermediate from Weinreb s racemic route [70] and later described a total... 

Dennis JR, Hale EB (1978) Crystalline to amorphous transformation in ion-implanted silicon a composite model. JAppl Phys 49 1119-1127... 

Dana MT, Lee RN, Hales JM. 1985. Hazardous air pollutants Wet removal rates and mechanisms. Richland WA U.S. Environmental Protection Agency. EPA 600/3-84-113. NTIS PB85 138-626. Daniel MR, Dehnel JM. 1981. Cell transformation test with baby hamster kidney cells. Mutat Res... 

The rain-out of reactive gases is determined by the transport of gas molecules to the droplet surface, their molecular diffusion into the liquid water, and by their rate of chemical transformation. It is shown (Beilke and Gravenhorst, 1978 Hales, 1978) that, in case of sulfbr dioxide removal, the rate of this latter process is much smaller than that of diffusion, since the equilibrium between S02 in the gas phase and sulfur(IV) in liquid water is reached within less than 1 s (in this form of notation, a Roman numeral in parentheses means the valence of the elements). For this reason the oxidation of sulfur(IV) in cloud drops is the rate-determining process in S02 removal. 

Hale and Aneiro (1997) reviewed recent progress made in improving analytical techniques for determining components of creosote in environmental media. The multiple extraction and purification steps required prior to chromatographic analysis is problematic in that compounds may be lost through volatilization or transformed through photodegradation. More efficient extraction procedures include supercritical fluid extraction, accelerated solvent, and microwave, and solid-phase extraction. Newer... 

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