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Sciences et technologies
Wat vang die wêreld se supermagte in hul geheime ondergrondse bunkers aan? Ondergrondse Basisse gee in die besonder bevestigde en…
gerugte ondergrondse fasiliteite in die Verenigde State en regoor die wêreld. Dit bevat seldsame fotografiese bewyse dwarsdeur sowel as minder bekende aanhalings uit sleutelregeringsfigure. Dit maak 'n dwingende saak dat daar 'n enorme verborge wêreld onder die Aarde se oppervlak bestaan. Die Morcans spekuleer dat die bedekte ondergrondse infrastruktuur veel groter kan wees as wat voorheen vermoed is en waarskynlik gebruik word vir die ontwikkeling van onderdrukte tegnologie. Hul bronne sluit in verwyderde lêers, universiteitsverslae, WikiLeaks se dokumente en onderhoude met oud-militêre personeel wat verklikkers geword het, wat beweer dat hulle in "stede onder die grond" gewerk het. Ondergrondse basisse lewer 'n wye verskeidenheid feite en teorieë wat uiteindelik lesers toelaat om hul eie gevolgtrekkings te vorm. Die onthulling dek alles van: die Amerikaanse Departement van Verdediging se bevestigde ontruimingsgebiede onder die Wit Huis en die Pentagon, sowel as hul erkende terreine by Mount Weather en Cheyenne Mountain; Ondergrondse fasiliteite regoor die wêreld, insluitend Rusland se uitgestrekte Mezhgorye-kompleks en Australië se CIA-bestuurde Pine Gap; Die langvergete koerantopskrifte wat berig het dat Adolf Hitler en senior SS-beamptes na die Tweede Wêreldoorlog 'n Nazi-kolonie onder Antarktika kon gebou het; Gerugte dat menslike-ruimtewesens gesamentlike ondernemings onder die grond plaasvind en dat ontvoerde burgers in ondergrondse gevangenisse aangehou word vir onwettige mediese eksperimente soos kloning. Waarom spandeer die Globale Adelikes triljoene dollars van hul swart begrotings om sulke groot netwerke van ondergrondse (en ondersese en onderys) terreine te bou? Berei hulle bloot voor vir noodgevalle soos per amptelike regeringsverklarings? Glo hulle dat 'n Armageddon-scenario op hande is? Werk hulle in die gehei
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Essais et documents généraux, Sciences et technologies
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Accessible to a variety of readers, this book is of interest to specialists, graduate students and researchers in mathematics, optimization,…
computer science, operations research, management science, engineering and other applied areas interested in solving optimization problems. Basic principles, potential and boundaries of applicability of stochastic global optimization techniques are examined in this book. A variety of issues that face specialists in global optimization are explored, such as multidimensional spaces which are frequently ignored by researchers. The importance of precise interpretation of the mathematical results in assessments of optimization methods is demonstrated through examples of convergence in probability of random search. Methodological issues concerning construction and applicability of stochastic global optimization methods are discussed, including the one-step optimal average improvement method based on a statistical model of the objective function. A significant portion of this book is devoted to an analysis of high-dimensional global optimization problems and the so-called ‘curse of dimensionality’. An examination of the three different classes of high-dimensional optimization problems, the geometry of high-dimensional balls and cubes, very slow convergence of global random search algorithms in large-dimensional problems , and poor uniformity of the uniformly distributed sequences of points are included in this book.
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Sciences et technologies
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This book reviews the occurrence and fate of pesticides in soils, their impact on soil quality and soil ecosystems, and…
it also provides a comprehensive overview of the latest prevention and remediation strategies of soil contamination. Chapters from expert contributors cover topics such as soil pollution monitoring, the role of dissolved organic matter on the environmental fate of pesticides in soils, the effects of pesticides on soil microbial communities, plant uptake of pesticides from soils, and nano-based pesticides. Particular attention is given to the latest physicochemical and biological technologies developed to immobilize or degrade pesticides, preventing soil and water pollution. Given its scope, the book will appeal to researchers, professionals, including environmental chemists, engineers, ecologists, and policy-makers responsible for soil management.