This book examines the driving dynamics of harvesting machines with large harvesting heads. It looks at how to efficiently use these machines. The author explores a common problem that hinders machine performance when harvesting with very large headers. He deals with concepts for reducing the undesired effects of vehicle dynamics when using these machines. With the steadily increasing capacity of harvesting machines, the working widths of the harvesting heads get wider and the headers get heavier. It has become essential with these giant headers to use header height sensors and header control systems to avoid the headers from being run into the ground when encountering elevation changes in the terrain. A fundamental limitation of the viable speed of header height adjustments arises from the combination of the wider and heavier headers with soft agricultural tires. The current solution to find an appropriate speed of header height adjustments is to perform a header calibration whenever a new header is attached to the machine and to endow the machine operator with the capability to tweak the speed of adjustments manually. The result of an inappropriate speed of height adjustments is a reduction in overall productivity and an under-utilization of the harvesting machine. The author looks at ways to prevent this. He offers detailed modeling of the vertical dynamics including dynamic wheel loads. In addition, the book contains results from simulations and machine tests.

Facharbeit (Schule) aus dem Jahr 2013 im Fachbereich Biologie - Krankheiten, Gesundheit, Ernahrung, Note: 1, - (Dietrich Bonhoeffer Gymnasium, Hilden), Sprache: Deutsch, Anmerkungen: Wurde im Rahmen eines Projektkurses Pharmakologie in der Q1 verfasst., Abstract: Diabetes mellitus hat sich in den letzten Jahrzehnten zu einer der haufigsten Volkskrankheiten in den Industrielandern entwickelt. Besonders in Mitteleuropa und Nordamerika ist ein grosser Anteil der Bevolkerung betroffen. Dabei stellt die Stoffwechselkrankheit, welche aus einer Unterversorgung der Zellen mit Glukose durch einen Insulinmangel resultiert, einen grossen finanziellen Aufwand fur das Gesundheitssystem und eine starke Einschrankung der Lebensqualitat dar. Es herrschen in der Bevolkerung viele Unsicherheiten uber diese Krankheit, sodass einige Gruppen eine falsche Prophylaxe betreiben, wahrend andere Gruppen Diabetes komplett ignoriere