Stephen A. Langford
Tel.520.297.0448
9140 North Shadow Mountain Dr.
Oro Valley, Greater TUCSON, AZ 85737
POSITION/S SOUGHT: Pure research, consulting, or teaching (any grade level; not certified, K-12; but eager to teach, possibly over the Internet).
CURRENT EFFORTS, PERSONAL SCIENCE:
Seeking to achieve
1) real-time data gathering, analysis, interpretation, and
presentation,
2)
automated image gathering, enhancement, assessment,
3)
real-time mapping of 3-D data related to mineral and rock
refractive indices (RIs), and
4) to
put a working, automated, petrographic microscope on Mars.
where RIs are measures of the speed of light through
materials, relative to the speed of light (c)
in a vacuum (c is the c of E=mc2).
Immediate Objectives: Continuing improvements to development of
microscopical RI methods for identification of solid phases and
estimations of their proportions in natural or ceramic mixtures. Expert-systems
development, especially for use in
1) mineral and rock identification,
2) prospecting,
3) ceramics work, and
4) quality and process control.
Long-term Objectives: Automated , real-time RI-data gathering; development and use of expert systems; analysis, and presentation of 3-D probability topologies indicative of sample chemistries and/or phase states. Applications to ceramics, minerals, and rock samples. Development of expertise in any facet related to these broad interests, including Internet Web presentations.
COMPUTER HARDWARE/SOFTWARE EXPERIENCE:
Currently -- Internet, HTML, Web-site development and maintenance.
Machines -- IBM 360/370, VAX 11/751, NOVA, PC/ATs (286 - 486) , Osborne 1, C/64.
Languages -- PL/I, BASIC, FORTRAN, PILOT, Ada, assembler, Turbo C, Turbo C++.
Statistical Packages -- BMD, BMDP, SPSS, SAS, SYSTAT: Polynomial curve fitting, general linear modeling, stepwise regression, factor analysis.
Data Bases -- dBASE III+, INGRES.
PROFESSIONAL EXPERIENCE:
Innovative data-gathering, data-reduction techniques (under development: RI topologies from microscopical rock studies). Broader applications of methods cut across many academic disciplines, including ceramics, high-pressure experiments, military terrain analysis. Work involves analytical-model development, statistical analysis, data/knowledge bases. Experienced in databases and computers. Neophyte in AI, robotics.
EDUCATION:
University of Hawaii Ph.D., 1972, Geology & Geophysics: "Statistical method in optical crystallography: Technique and application to rock forming minerals." Chairman, Gordon A. Macdonald (deceased); other committee members -- Agatin T. Abbott (deceased), James E. Andrews, Rockne H. Johnson, Ralph M. Moberly, Kost A. Pankiwskyj.
University of Hawaii MS, 1969, Geosciences: "Surface morphology of the Tuscaloosa Seamount." Chairman, Gordon A. Macdonald; other committee members -- Alexander Malahoff and Ralph M. Moberly.
Amherst College BA, 1963, Geology: "A study of the heavy minerals of the Cheshire Quartzite; Cheshire, Massachusetts." Advisor, Gerald P. Brophy.
COMPUTER COURSEWORK: Cochise College, Fall 1986, Ada (grade = A; Instructor = John Henry).
Other computer languages, self-taught.
EXPERIENCE DETAILS:
PRESENT: Self-directed, pure research in RI methodologies, developing RI topologies from liquid-immersion microscopical studies of crushed mineral separates and of whole rock.
OCT '82-'88: Langford Consulting: Geological consulting, computer sales; part-time, from home.
JAN '83-JAN '87: Technical Librarian, Ultrasystems, Sierra Vista, AZ (under contract to U.S. Army, Ft. Huachuca). Responsibities: Developing, maintaining technical library, employing INGRES relational data-base-management system, on VAX11/751. Fully interactive, user-oriented system now in place. Clearance was SECRET.
JUN-DEC '81: Research Director, Western Petrographic, Tucson, AZ. Partnership in petrographic research.
OCT '80 - MAY '81: Geologist, Deepsea Ventures, Inc., Gloucester Pt., Va. Geologist, Chief Scientist, mid-Pacific manganese-nodule exploration, mapping; computer-aided satellite navigation.
MAY - SEP '80: Geologist, Peabody-Calada (now Geo Drilling Fluids), Elko, Nevada. Barite exploration, mining. Field exploration, staking, map search, dozer-work direction, field mapping, drill-hole spotting, core logging, blast setting, ore-reserve estimates at various cutoffs.
AUG '78 - AUG '79: Computer Specialist, Univ. Hawaii Computing Center. PILOT program modification. Self-directed statistical analysis: Relations among optical, chemical data from natural, volcanic-rock, glass samples.
JAN '65 - AUG '78: Teaching/Research: Univ. Hawaii Depts. of Geology and General Sciences; Chaminade College, Honolulu, (last rank, Asst. Professor).
Teaching: Labs in Intro. Geology, Geology of Hawaii, Biology, Physics, Hawaiian Sciences; full courses in Geology of Hawaii, Physics, Hawaiian Volcanology (2-week field courses, Hawaii Island).
Research: T-phase, OBS seismology; gravity, magnetics, bathymetry, crystal optics, strain-gauge data collection and/or data reduction.
JUN '63 - DEC '64: Geologist, U.S. Naval Oceanographic Office. Bathymetry.
PUBLICATIONS/PRESENTATIONS:
Jepperson, R. M., and Langford, S.A., October 1983. Fifth-Generation Systems: Presentation to IEEE Ft. Huachuca Chapter.
Kuck, D. L., Phillips, R. W., and Langford, S. A., 1987a. Ice pillars, packwalls and brattices in longwall coal mining. Proc. Mining Mag. Longwall USA Conf., 4 June 1987, David Lawrence Conv. Ctr., Pittsburg.
----- , ----- , and Langford, S. A. , 1987b. Ice pillars, packwalls, and brattices. Proc. 6th Int. Conf. Ground Control in Mining, 9 - 11 June 1987, W. Virginia Univ. Dept. Mining Engineering, p. 242 ff.
Langford, S.A., 1991. A modified Jelley refractometer. Royal Microscopical Society J. Microscopy, v. 163, Pt. 3, pp. 333-345, London, England.
Langford, S.A., 1984. Library Use & Maintenance, Ultrasystems, 30 pp.
Langford, S.A., Abstract, 1984. Refractive index -- a geochemical indicator in natural, volcanic glasses. J. Non-Crystalline Solids, v. 67, p. 192; and, in Natural Glasses, 1984, North-Holland Physics Publishing, Amsterdam, 662 pp. Presented Aug '83 at Alfred Univ. 'Glass in Planetary and Geological Phenomena' conference.
Langford, S.A., 1982. Refractive-index profile of a tephra sample from the 18 May 1980 eruption of Mt. St. Helens. The Microscope, v. 30, no. 2, pp. 81-91.
Langford, S.A., and J. K. Nakagawa, 1978. A general equation for estimating refractive indices of Cargille liquids at various temperatures and wavelengths. The Microscope, v. 26, no. 4, pp. 167-170.
Langford, S.A., and R. C. Brill, 1972. Giant submarine landslides on the Hawaiian Ridge: A rebuttal. Pacific Science, v. 26, no. 2, pp. 254-258.
PROFESSIONAL MEMBERSHIP: Geological Society of America.
By the way, you might like to visit both "iomega Boycott!"
and "Seatbelts for School Buses"
Thank you for your interest!
Sincerely, Steve Langford
©Stephen A. Langford, Oro Valley, Arizona, 2 April 1999. ALL RIGHTS RESERVED. This document may be freely transmitted in its entirety, so long as no monies are earned during the transaction/s. Permission is required for any and all other pertinent circumstances.
(Metering for this page begun 26 February 1997.) 
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