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This open access book surveys the frontier of scientific river research and provides examples to guide management towards a sustainable future of riverine ecosystems. Principal structures and functions of the biogeosphere of rivers are explained; key threats are identified, and effective solutions for restoration and mitigation are provided. Rivers are among the most threatened ecosystems of the world. They increasingly suffer from pollution, water abstraction, river channelisation and damming. Fundamental knowledge of ecosystem structure and function is necessary to understand how human acitivities interfere with natural processes and which interventions are feasible to rectify this. Modern...
Hot Isostatic Pressing (HIP) has important applications in advanced materials manufacturing, automotive, aerospace, oil and gas industries, power generation, and medical and nuclear fields. The symposium focused on HIP applications in such areas as material optimization, radioactive nuclear waste, cast aluminum alloys, ceramic materials, superalloys, manufacturing of turbine blisks, densification of additive manufactured parts, diffusion welding of dissimilar metals and alloys, heat treatment inside the HIP unit, turbopump components, improved tooling materials, valve spindles for engines, Ni-base superalloys, titanium aluminide, stainless steels, metal matrix composites, phase transformations, uniform load cooling equipment, duplex steel, diamond/SiC composites, large hot zone units, additive manufacturing, efficient modeling, reactor vessel fabrication, electron beam welding, superconducting magnet structures.
The demographic shockwaves of the nineteenth and early twentieth centuries in Europe produced tremendous change in the national economies and affected the political, social, and cultural development of these societies. Migration historians have begun to connect the various European migratory streams during this period with transcontinental migration to North America. This volume contains empirical studies on German in-migration, internal migration, and transatlantic emigration from the 1820s to the 1930s, placed in a comparative perspective of Polish, Swedish, and Irish migration to North America. Special emphasis is placed on the role of women in the process of migration. By looking specifically at postwar Germany, Klaus J. Bade underscores the relevance of this history in a concluding essay.
This volume offers a comprehensive review of the chemical, biological and hydromorphological quality of the Danube. The first part examines the chemical pollution of surface waters, focusing on organic compounds (with special emphasis given to EU WFD priority substances and Danube River Basin specific pollutants), heavy metals and nutrients. Attention is also given to pollution of groundwater and drinking water resources by hazardous substances and to radioactivity in the Danube. The second part highlights the biology and hydromorphology of the Danube. It focuses on benthic macroinvertebrates, phytobenthos, macrophytes, fish, phytoplankton as well as microbiology, with chapters dedicated to gaps and uncertainties in the ecological status assessment and to invasive alien species. Further chapters dealing with the hydromorphology, sediment management and isotope hydrology complete the overall picture of the status of the Danube.
The twentieth century has seen Germany transformed from imperial monarchy, through Weimar democracy, National Socialist dictatorship, to finally divide into parliamentary democracy in the West and socialist Volksdemocratie in the East. Pivoting on two World Wars, intense political change has dramatically affected Germany's economic structure and development. This book traces the logic and the peculiarities of German economic development through the Weimar Republic, Third Reich and Federal Republic. Providing a comprehensive analysis of the period, the book also assesses controversial issues, such as the origins of the Great Depression, the primacy of politics or economics in the decision to invade Poland and the future risks to the Weltmeister economy of the Federal Republic oppressed by unemployment, the huge debts of some of its trading partners, and the possibility of worldwide protectionism.
First Published in 2004. Routledge is an imprint of Taylor & Francis, an informa company.
This text examines the impact of climate change on freshwater ecosystems, past, present and future. It especially considers the interactions between climate change and other drivers of change including hydromorphological modification, nutrient loading, acid deposition and contamination by toxic substances using evidence from palaeolimnology, time-series analysis, space-for-time substitution, laboratory and field experiments and process modelling. The book evaluates these processes in relation to extreme events, seasonal changes in ecosystems, trends over decadal-scale time periods, mitigation strategies and ecosystem recovery. The book is also concerned with how aspects of hydrophysical, hydrochemical and ecological change can be used as early indicators of climate change in aquatic ecosystems and it addresses the implications of future climate change for freshwater ecosystem management at the catchment scale. This is an ideal book for the scientific research community, but is also accessible to Masters and senior undergraduate students.
This book analyzes the human consequences of urbanization and geographical mobility for residents of a major city in the Ruhr Valley of Germany during the century-long transition from an agrarian order to the industrial era. By utilizing an un-precidented combination of demographic records, it reshapes the conventional understanding of central European migration.