Sökning: "German"
Visar resultat 16 - 20 av 545 avhandlingar innehållade ordet German.
16. Crystallization on the Mesoscale : Self-Assembly of Iron Oxide Nanocubes into Mesocrystals
Sammanfattning : Self-assembly of nanoparticles is a promising route to form complex, nanostructured materials with functional properties. Nanoparticle assemblies characterized by a crystallographic alignment of the nanoparticles on the atomic scale, i.e. mesocrystals, are commonly found in nature with outstanding functional and mechanical properties. LÄS MER
17. Análisis dinámico de un eje de ferrocarril con capacidad de cambio de ancho automático
Sammanfattning : El objetivo de la presente tesis es la mejora de los actuales ejes de ancho variable para su circulación por vías de alta velocidad (AV) a velocidades de hasta 300km/h. En la actualidad los vehículos con ejes de ancho variable no sobrepasan los 250km/h de velocidad de servicio en vías de AV, lo que supone un claro desaprovechamiento de recursos y dificultades de gestión del tráfico para el gestor de la infraestructura a causa de las distintas velocidades punta de los diferentes trenes. LÄS MER
18. Análisis dinámico de un eje de ferrocarril con capacidad de cambio de ancho automático
Sammanfattning : .... LÄS MER
19. Biomass-derived nanoscopic catalysts for water treatment : Structure-property relationship investigation
Sammanfattning : Green Chemistry has received widespread interest due to its capacity to meet environmental and economic objectives. The Twelve Principles were proposed to better perform Green Chemistry and have become the guideline for solving many environmental issues. Water contamination has become a major global challenge in the 21st century. LÄS MER
20. Nanocellulose: Energy Applications and Self-Assembly
Sammanfattning : Technologies based on renewable materials are required to decrease the environmental cost and promote the development of a sustainable society. In this regard, nanocellulose extracted from wood finds many applications thanks to its intrinsic mechanical and chemical properties as well as the versatility in its manufacturing processes. LÄS MER