نتایج جستجو برای: geophysical method

تعداد نتایج: 1638335  

2006
J. ASFAHANI

A new and simple method based on constrained nonlinear programming concepts is being proposed in this research to interpret the self-potential (SP) anomaly due to two-dimensional inclined sheets of finite depth extent. A constrained nonlinear model has been formulated to describe the geophysical problem related to this buried inclined structure. Thereafter this model has been solved by the famo...

2001
Morgan Brown

Geophysical data often contains both systematic and random errors. If left unchecked, the systematic errors can cause acquisition footprint in the final map. I present a method to estimate systematic error by analyzing measurements at points where two acquisition swaths cross. I then subtract the estimated systematic error from the data and generate a map with a familiar least squares formulati...

2017
Han Run - Sheng Li Wen - Yao Wang Feng Liu Fei Qiu Wen - Long

Abstract—Accurately positioning detection of concealed deposits or ore-bodies is one of the difficult problems in mineral exploration field. Theory calculation and exploration practices for tunnel gravity indicate that 3D high-precision Tunnel Gravity Exploration Method (TGEM) can find concealed high-density three-dimensional ore-bodies in the depth. The ore-finding breakthroughs at the depth o...

2003
Robert A. Granat

Geophysics research has been faced with a growing need for automated techniques with which to process large quantities of data. A successful tool must meet a number of requirements: it should be consistent, require minimal parameter tuning, and produce scientifically meaningful results in reasonable time. We introduce a hidden Markov model (HMM)-based method for analysis of geophysical data set...

2000
Thomas Knudsen

Busstop, a spatio-temporal GIS prototype for geophysical studies, is presented. It includes a metadata representation system, a visualisation subsystem, and a spatio-temporal extension of a classical map algebra. It also takes an active approach to integration with existing non-GIS data handling and analysis programs. Busstop has been used for minor geophysical case studies with some success, b...

2009
Pavel Bláha

Geophysical survey methods bring information on the rock environment in real time, i.e. already during the geophysical survey. A geologist or a geotechnician provides such obtained information to a designer for the purpose of designing and implementation work at construction sites. Also, information on the effect of the rock environment or its properties (changing with time) on stabilization wo...

Journal: :Science 1937
J A Fleming

The American Geophysical Union: DR. J. A. FLEMSpecial Articles: ING . ....565 * Isolation and Properties of Chicken Erythrocyte Acetylcholine and the Physiology of the Nervous Nuclei: DR. ALEXANDER L. DOUNCE and TIEN Ho System: DR. J. F. FULTON and DR. D. NACHMANLAN. Fractional Cephalin-Cholesterol Flocculation SOHN .59 ... ............................. . 569 in Hepatic Disease: DR. MAURICE BRU...

2013
Ronald G. McLeod RONALD G. MCLEOD

A series of digital data sets were compiled for input into a geophysical data base for a one degree quadrangle in Arizona. Using a Landsat digital mosaic as a base, information on topography, geology, gravity as well as Seasat radar imagery were registered. Example overlays and tabulations are performed. The role of remote sensing in environmental inventory has evolved into an important supplem...

2014
A. M. Monem

Most of time series that appear in many economical geophysical and other phenomena are driven by nonGaussian white noise ( ), in this paper investigate some probabilistic properties of Gaussian and nonGaussian mixed with identification methods of ARMA model. We have theoretically derived the characteristic function the first of (four moments) of skeweness and kurtosis coefficients for white noi...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید