Rees, Herbert

Rees, Herbert (1994) Understanding Injection Molding Technology, Munich, Carl Hanser Verlag... 

Rees, Herbert. Mold Engineering. Munich Hanser Publishers, 1995. 

Rees, Herbert, Mold Engineering, 2" Edition, Hanser Gardner Publications, Cincinnati, pp. 589-590 (2002)... 

Robert H. Meade, John A. Moody, and Herbert H. Stevens of the U.S. Geological Survey, Denver, Colorado, deserve credit for designing and conducting the hydrological study of the Mississippi River that was used to compute DOC loads for this report. The author also thanks Patricia A. Brown, Terry I. Brinton, Wesley L. Campbell, John R. Garbarino, Ted I. Noyes, James F. Ranville, Terry F. Rees, Robert F. Stallard, and Howard E. Taylor of the U.S. Geological Survey, Denver, Colorado, for assisting in sample collection and analyses for the Mississippi River study. 

Ammonification is another process that can result in N release. The simplest definition of the process is the release ofNH4 from organic matter (e.g., Herbert, 1999). It can occur by a number of different processes including remineralization by bacteria in the water column and sediments. Photochemical ammonification occurs abiotically when NH4+ is released from organic matter as a result of exposure to UV radiation (reviewed in Bronk, 2002 and Chapter 10 by Gryz-bowski and Tranvik, this volume). Ammonium efflux from cells has also been observed following urea uptake in a number of culture experiments (e.g., Price and Harrison, 1988 Rees and Bekheet, 1982 Uchida, 1976). The release may be due to passive diffusion through the cell membrane and is likely unavoidable because NH3 is lipid soluble. 

Herbert Rees, Injection Molding Technology, Hanser Publishers... 

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