Jens Feder Fractal Structures and Self Organization (TMR network) Fractals; Flow in Porous Media; Granular Materials; Fracture Mechanics; Friction. Available in: Hardcover. This lovely little book will take off and fly on its own power, but the author has asked me to write a few words, and one. Jens Feder is the author of Fractals ( avg rating, 2 ratings, 0 reviews, published ), Fractals in physics ( avg rating, 0 ratings, 0 reviews.

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General contact details of provider: This strategy is generalized in the sketches in Figs. The coastline of Norway is an example of a natural fractal.

Such provinces may host economically profitable deposits more frequently than other areas, 2 improvement of cost efficiency in geochemical prospecting by systematic fol- low-up investigations, working step by step increasing sample density within decreasing target areas selected on the basis of the principles of fractal geometry. The dynamics of viscous fingering in a two-dimensional porous model has been investigated.

Please view eBay estimated delivery times at the top of the listing. Please note that corrections may take a couple of weeks to filter through the various RePEc services.

Specific topics in fractal geometry and its applications have already benefited from several excellent surveys of moderate length, and gossip and preliminary drafts tell us that we shall soon see several monographic treatments of broader topics.

The measured length, L 8of all the 0. The other three methods are less direct because they require frctals of geochemical concentrations between sample points to obtain isoconcentration contours. Full text for ScienceDirect subscribers only As the access to this document is restricted, you may want to search for a different fractas of it.


The histograms of the number of islands with an area A above a given area a as function of a, and the resulting plot Fig. For each point on the grid we solved the Kriging equations, including all measured concentrations within a circle o f 50 km. If it is a general rule that geochemical landscapes are fractal – – and, conse- quently, analogous to topographic landscapes – – new opportunities seem to appear for fexer geochemistry.

The fractal nature of geochemical land- scapes. Dractals from distribution patterns of acid soluble A1 in stream sediment from northern Fennoscandia. This discrepancy is, however, not real for two reasons: See discussions, stats, and author profiles for this publication at: Plenum Press, New York, pp.

Phys. Rev. A 36, () – Dynamics of viscous-fingering fractals in porous media

The n u m b e r of steps needed to go from one end to the other, always stepping on the coastline, is N 5o. We have studied the radius of the active zone and the screening length of the active zone as a function of time in the DLA regime.

For exploration geochemists, the practical consequences are of particular interest and these will be discussed towards the end of the paper. Note the logarithmic scale along the abscissa.

For some elements the solubility in HNO3 is low and of doubtful significance. Outside these limits the empirical geochemical landscape is mathematically nonexistent; the var- iance, consequently approaches a constant value as h approaches the linear dimension of the survey area.

RePEc uses bibliographic data supplied by the respective publishers. Simulation of geological surfaces using fractals.

Jens Feder

In this case Dt is 1. This allows to link your profile to this item. The length L of the coast of Norway as a function of the yardstick 5 used in the measurements. If you have authored this fraftals and are frxctals yet registered with RePEc, we encourage you to do it here. Construction of the Triadic Koch curve.


We are unable to deliver faster than stated. Analysis of variogrammes and other tests carried out on geochemical dispersion patterns contents of 21 acid soluble elements in samples of stream sediment within akm 2 survey area in northern Fennoscandia indicates a fractal dimension of between 2.

Large provinces of ele- vated trace element contents may have a higher frequency of significant min- eral deposits than geochemical background regions. Modern aerial gamma-ray spectrometry and regional potassium map of the conterminous United States.

If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item.

More thorough examination of subprovinces could then be done with even closer sample spacing, and so on. Contents of nitric acid soluble AI in the minus 0.

For the teacher, however, these surveys and monographs are not enough, and an urgent need for more helpful books fraxtals been widely recognized.

In such surveys tens of thousands of samples have often been collected initially in order to obtain comprehen- sive coverages of large survey areas in a single step.