00940nam0 2200277 450 00001237420180619115231.020080605d1951----km-y0itay50------baengNLa-------001yyTransmitting valvesthe use of pentode, tetrodes and triode in transmitter circuitsby J. P. Heyboerrevised by P. Zijlstrawith a foreword by H. A. ThomasEindhovenPhilips' technical library1951XII, 286 p.ill.24 cmSeries on electronic valves72001Series on electronic valvesRadiotecnica621.3841220Heyboer,J. P.631410Zijlstra,P.Thomas,H. A.ITUNIPARTHENOPE20080604RICAUNIMARC000012374621.384/10112094PIST2008Transmitting valves1203205UNIPARTHENOPE04020nam 22006735 450 991033789380332120251113212127.03-319-91229-110.1007/978-3-319-91229-5(CKB)4100000004974513(MiAaPQ)EBC5437408(DE-He213)978-3-319-91229-5(PPN)229498043(EXLCZ)99410000000497451320180625d2019 u| 0engurcnu||||||||txtrdacontentcrdamediacrrdacarrierRaw Materials for Future Energy Supply /by Friedrich-W. Wellmer, Peter Buchholz, Jens Gutzmer, Christian Hagelüken, Peter Herzig, Ralf Littke, Rudolf K. Thauer1st ed. 2019.Cham :Springer International Publishing :Imprint: Springer,2019.1 online resource (248 pages)3-319-91228-3 Grundlagen -- Rohstoffversorgung und Einflüsse der Weltwirtschaft -- Aktuelle Rohstoffsituation – ein Überblick -- Entwicklung des Rohstoffbedarfs des Energiesystems -- .This is the first book that analyses the future raw materials supply from the demand side of a society that chiefly relies on renewable energies, which is of great significance for us all. It addresses primary and secondary resources and substitution, not only from technical but also socioeconomic and ethical points of view. The “Energiewende” (Energy Transition) will change our consumption of natural resources significantly. When in future our energy requirements will be covered mostly by wind, solar power and biomass, we will need less coal, oil and natural gas. However, the consumption of minerals, especially metallic resources, will increase to build wind generators, solar panels or energy storage facilities. Besides e.g. copper, nickel or cobalt, rare earth elements and other high-tech elements will be increasingly used. With regard to primary metals, Germany is 100 % import dependent; only secondary material is produced within Germany. Though sufficient geological primary resources exist worldwide, their availability on the market is crucial. The future supply of the market is dependent on the development of prices, the transparency of the market and the question of social and ethical standards in the raw materials industry, as well as the social license to operate, which especially applies to mining. The book offers a valuable resource for everyone interested in the future raw material supply of our way of life, which will involve more and more renewable energies.GeologyRenewable energy sourcesMaterialsCatalysisForce and energyBiogeographyGeologyRenewable EnergyMaterials for Energy and CatalysisBiogeosciencesGeology.Renewable energy sources.Materials.Catalysis.Force and energy.Biogeography.Geology.Renewable Energy.Materials for Energy and Catalysis.Biogeosciences.333.79Wellmer Friedrich-Wilhelmauthttp://id.loc.gov/vocabulary/relators/aut1447821Buchholz Peterauthttp://id.loc.gov/vocabulary/relators/autGutzmer Jensauthttp://id.loc.gov/vocabulary/relators/autHagelüken Christianauthttp://id.loc.gov/vocabulary/relators/autHerzig Peter Mauthttp://id.loc.gov/vocabulary/relators/autLittke Ralf1957-authttp://id.loc.gov/vocabulary/relators/autThauer Rudolf Kauthttp://id.loc.gov/vocabulary/relators/autBOOK9910337893803321Raw Materials for Future Energy Supply4434196UNINA