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Visar resultat 1 - 5 av 304 avhandlingar som matchar ovanstående sökkriterier.
1. Long-range decision models in mining
Sammanfattning : Decision models for optimizing decisions in mining. Two principal models are presented:1) For optimizing the rate of production in a mine2) For optimizing the cut-off grade. The models are based on dynamic programming and simulate the economic consequences of alternative decisions. Computer programs containing the models are presented. LÄS MER
2. A Non-Gaussian Limit Process with Long-Range Dependence
Sammanfattning : This thesis, consisting of three papers and a summary, studies topics in the theory of stochastic processes related to long-range dependence. Much recent interest in such probabilistic models has its origin in measurements of Internet traffic data, where typical characteristics of long memory have been observed. LÄS MER
3. Long range transport through the atmosphere : a study of sulfur as an air pollutant
Sammanfattning : .... LÄS MER
4. Designing order with long-range interactions in mesoscopic magnetic chains
Sammanfattning : This thesis investigates how the low-energy magnetic configuration of a mesoscopic chain can be tuned by geometrical modifications. The magnetic arrays made by single-domain stadium shaped elements positioned side-by-side were fabricated by patterning into a sputtered ferromagnetic thin film. LÄS MER
5. The Effect of Long Range Order on Elastic Properties of Alloys
Sammanfattning : Ab initio alloy theory, formulated within the exact muffin-tin orbitals method in combination with the coherent-potential approximation, is used to determine the effect of long range order on the elastic properties. The lattice parameters and single-crystal elastic constants of Cu3Au are calculated for different partially ordered structures ranging from the fully ordered L12 to the random face centered cubic lattice. LÄS MER