Research Catalog

  • Zeta potential control for simultaneous enhancement of penetration rates and bit life in rock drilling / by William H. Engelmann ... [et al.].

    • Text
    • Pittsburgh, Pa. : U.S. Dept. of the Interior, Bureau of Mines, 1987.
    • 1987
  • Potential use of ultrasound in chemical monitoring [microform] : project summary / Grazyna E. Orzechowska, Edward J. Pozionek and William H. Engelmann.

    • Text
    • Las Vegas, NV : U.S. Environmental Protection Agency, Environmental Monitoring Systems Laboratory ; Springfield, VA : National Technical Information Service, [distributor, 1994]
    • 1994
  • A field screening method for polychlorinated biphenyl compounds in water [microform] : project summary / by Shen Lin, Edward J. Poziomek, and William H. Engelmann.

    • Text
    • Las Vegas, NV : U.S. Environmental Protection Agency, Environmental Monitoring Systems Laboratory ; [Springfield, VA : National Technical Information Service, distributor, 1994]
    • 1994

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