In diesem Beitrag werden auf Grundlage einer Szenarioanalyse Aussagen über mögliche ökonomische Auswirkungen differenzierter Wasserentnahmemengen auf typische Ackerbaubetriebe in Nord-Ost-Niedersachsen abgeleitet. Ferner werden betriebliche Entwicklungspfade aufgezeigt, die zum ökonomischen Optimum unter Berücksichtigung der entnehmbaren Wassermenge und der Produktpreise führen. In bisherigen B...

We investigated the release angle that maximizes the distance attained in a long soccer throw-in. One male soccer player performed maximum-effort throws using release angles of between 10 and 60 degrees, and the throws were analyzed using two-dimensional videography. The player's optimum release angle was calculated by substituting mathematical expressions for the measured relationships between...

One of reasons that researchers in recent years have tried to produce ultrafine grained materials is producing lightweight components with high strength and reliability. There are disparate methods for production of ultra-fine grain materials,one of which is severe plastic deformation method. Severe plastic deformation method comprises different processes, one of which is Parallel tubular chann...

In a closed die forging process, it is impossible to form complex shapes in one stage, and thus it becomes necessary to use preform dies. In the present study, Backward Deformation Method and FE simulation via ABAQUS software has been used in order to design preform die of the H-shaped parts. In the Backward Deformation Method, the final shape of the part is considered as a starting point and u...

The article concern the influences of the novel flash structure with resistance wall on the forming load and die wear during the closed-die forging process. If the geometrical parameters of the resistance wall are not properly designed, the forming load and die wear may be great; this can affect the life of the forging die. Yet, no procedure is known to optimize and decide this flash structure ...

Due to the increasing energy needs and limited resources that are depleted, more importance is given renewable sources their use with highest efficiency in many areas. In order benefit from solar energy, which one of most important sources, efficiency, various parameters must be optimized. this study, optimization photovoltaic (PV) panel angle emphasized. By using values radiation incident on h...

Partikelschwarmoptimierung (PSO) ist eine in der Praxis immer wieder sehr erfolgreich eingesetzte Metaheuristik zum Lösen von Black-Box-Optimierungsproblemen und wird speziell im Fall eines kontinuierlichen Suchraums verwendet. Dazu wird das in der Natur häufig auftretende Schwarmverhalten von miteinander kooperierenden Individuen imitiert. Die Dissertation liefert einen Beitrag zum besseren Ve...