Sökning: "nature cycles"
Visar resultat 16 - 20 av 73 avhandlingar innehållade orden nature cycles.
16. Optimal Engine Operation in a Multi-Mode CVT Wheel Loader
Sammanfattning : Throughout the vehicular industry there is a drive for increased fuel efficiency. This is the case also for heavy equipment like wheel loaders. The operation of such machines is characterized by its highly transient nature, the episodes of high tractive effort at low speed and that power is used by both the transmission and the working hydraulics. LÄS MER
17. Crustal evolution of the Arabian–Nubian Shield : Insights from zircon geochronology and Nd–Hf–O isotopes
Sammanfattning : The Arabian–Nubian Shield (ANS) represents a major site of juvenile Neoproterozoic crustal addition on Earth and documents Neoproterozoic tectonics bracketed by two supercontinent cycles, namely the fragmentation of Rodinia and the amalgamation of Gondwana. There is general consensus that the ANS formed by juvenile magmatic arc accretion and subsequent shield–wide post–tectonic magmatism. LÄS MER
18. Organizational tensions when managing interorganizational projects : Applying a paradox perspective on large construction projects in Sweden
Sammanfattning : Over the years, technological developments and societal changes have forced companies to modify their organizing practices. Companies operating in the construction sector are no exception, but due to their project-based structure, it is more difficult to coordinate change initiatives. LÄS MER
19. Local Structure of Hydrogen-Bonded Liquids
Sammanfattning : Ordinary yet unique, water is the substance on which life is based. Water seems, at first sight, to be a very simple molecule, consisting of two hydrogen atoms attached to one oxygen. LÄS MER
20. Ecosystem processes and biodiversity : theoretical studies and experiments with an aquatic model ecosystem
Sammanfattning : Today, human enterprise has implications for all of nature, from the well being of the smallest organism, to the alteration of global biogeochemical cycles. To understand how major ecosystem processes are affected by environmental changes and decreasing biodiversity is crucial as many of natures services depend of such processes. LÄS MER