نتایج جستجو برای: geological method

تعداد نتایج: 1651162  

The most significant aspect of a geochemical exploration program is to define and separate the anomalous values from the background. In the past decades, geochemical anomalies have been identified by means of various methods. Most of the conventional statistical methods aiming at defining the geochemical concentration thresholds for separating anomalies from the background have limited the effi...

Journal: :Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics 1996
Plotnick Gardner Hargrove Prestegaard Perlmutter

Lacunarity analysis is a multiscaled method for describing patterns of spatial dispersion. It can be used with both binary and quantitative data in one, two, and three dimensions. Although originally developed for fractal objects, the method is more general and can be readily used to describe nonfractal and multifractal patterns. Lacunarity analysis is broadly applicable to many data sets used ...

Journal: :Science 1967
J L Worzel

Journal: :Medical History 1970
C. A. Sizer

Conditions have fluctuated a good deal in the last 'leaps' but these changes, like waves on the ocean, had little effect on the working up and down of traditional medicine which is the main element of Chinese life itself. Contradictions in a socialist society are fundamentally different from those in the old societies. Traditional medicine, a faithful reflection of Chinese culture, is a first-r...

Journal: :Physiology 2006
Ulrich Pohl

2001
J. W. HEAD R. GREELEY M. P. GOLOMBEK W. K. HARTMANN E. HAUBER

Geological mapping and establishment of stratigraphic relationships provides an overview of geological processes operating on Mars and how they have varied in time and space. Impact craters and basins shaped the crust in earliest history and as their importance declined, evidence of extensive regional volcanism emerged during the Late Noachian. Regional volcanism characterized the Early Hesperi...

Journal: :CoRR 2012
Zyed Bouzarkouna Didier Yu Ding Anne Auger

In the well placement problem, as well as in many other field development optimization problems, geological uncertainty is a key source of risk affecting the viability of field development projects. Well placement problems under geological uncertainty are formulated as optimization problems in which the objective function is evaluated using a reservoir simulator on a number of possible geologic...

The uniaxial compressive strength (UCS) of intact rocks is an important geotechnical parameter required for designing geotechnical and mining engineering projects. Obtaining accurate estimates of the rock mass UCS parameter throughout a 3D geological model of the deposit is vital for determining optimum rock slope stability, designing new exploratory and blast boreholes, mine planning, optimizi...

2004
M. A. Townsend D. P. Young A. Macko

NITROGEN-15 NATURALABUNDANCE METHOD FOR IDENTIFICATION OF NITRATE SOURCES M. A. Townsend, D. P. Young, and S. A. Macko Kansas Geological Survey, 1930 Constant Avenue, Lawrence, KS 66047; Phone: 785-864­ 3965; Fax: 785-864-5317; [email protected]; [email protected]. University of Virginia, Department of Environmental Sciences, Charlottesville, VA 22903; Phone: 434-924-6849; Fax: 434-982-2137; s...

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