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Topic Area: Environment/Climate

Displaying records 291 to 300 of 403 records.
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291. Certification of Three Mussel Tissue Standard Reference Materials for Methylmercury and Total Mercury Content
Topic: Environment/Climate
Published: 6/1/1997
Authors: M K. Donais, R. Saraswati, Elizabeth A Mackey, R. Demiralp, Barbara J. Porter, M. Vangel, M. Levenson, V. Mandic, S. Azemard, M. Horvat, K. May, Hendrik Emons, Stephen A Wise
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=100497

292. Certification of a Frozen Mussel Tissue Standard Reference Material for Trace Organic Constituents
Topic: Environment/Climate
Published: 6/1/1997
Authors: Michele M Schantz, R. Demiralp, Robert R. Greenberg, M. J. Hays, Reenie M. Parris, Barbara J. Porter, Dianne L Poster, Lane C Sander, Katherine E Sharpless, Stephen A Wise, S. B. Schiller
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=100545

293. Factors Influencing Polycyclic Aromatic Hydrocarbon Concentrations and Patterns in South Carolina Sediments
Topic: Environment/Climate
Published: 6/1/1997
Authors: John R Kucklick, S Sivertsen, M Sanders, Gregory Scott
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=100511

294. Characterization of Three PCB Technical Mixtures Using a Novel Cyanobiphenyl Stationary Phase and Mass Selective Detection
Topic: Environment/Climate
Published: 3/1/1997
Authors: B. R. Hillery, J. E. Girard, Michele M Schantz, Stephen A Wise
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=100507

295. Certification of Polycyclic Aromatic Hydrocarbons in Mussel Tissue Standard Reference Materials (SRMs)
Topic: Environment/Climate
Published: 2/1/1997
Authors: Stephen A Wise, Michele M Schantz, M. J. Hays, B. J. Koster, Katherine E Sharpless, Lane C Sander, S. B. Schiller
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=100563

296. Finish Hard Turning of Powder Metallurgy M50 Steel
Topic: Environment/Climate
Published: 1/1/1997
Authors: Y K Chou, Christopher J. Evans
Abstract: Finishing performance in turning of hardened powder metallurgy (PM) AISI M50 steel using cubic boron nitride (CBN) tools has been studied. Tool wear and flank wear rates are unusually small and are relatively insensitive to cutting conditions. This i ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=820027

297. The Dynamics of Chip Segmentation in Machining
Topic: Environment/Climate
Published: 1/1/1997
Authors: Matthew A. Davies, Christopher J. Evans, Timothy J Burns
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=820109

298. The dynamics of chip formation in machining
Topic: Environment/Climate
Published: 1/1/1997
Authors: Matthew A. Davies, Christopher J. Evans, Timothy J Burns
Abstract: In this paper, we provide experimental, numerical and analytical evidence suggesting that the onset of segmented chip formation is the result of a Hopf bifurcation in the material flow. We modify the conventional one-dimensional model for orthogonal ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=820013

299. White Layers and Thermal Modeling of Hard Turned Surfaces
Topic: Environment/Climate
Published: 1/1/1997
Authors: Y K Chou, Christopher J. Evans
Abstract: White layers in hard turned surfaces are identified, characterized and measured as a function of tool flank wear and cutting speed. White layer depth generally increases with flank wear. It also increases with speed, but approaches an asymptote. A th ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=820003

300. NIST/NOAA NS&T/EPA EMAP Intercomparison Exercise Program for Organic Contaminants in the Marine Environment: Description and Results of 1995 Organic Intercomparison Exercises - Fish Homogenate III and Marine Sediment V
Topic: Environment/Climate
Published: 12/1/1996
Authors: Reenie M. Parris, Michele M Schantz, Stephen A Wise
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=100532