Die Hupkraftverteilung eines airbagintegrierten Automobillenkrades wird mit Hilfe einer Parameterstudie in MathCAD so optimiert, das an jeder Krafteinleitungsposition die Hupe mit einer geforderten Mindestkraft betätigt werden kann. Nach der Modellierung in MathCAD der zugehörigen Geometrie und der Dimensionierung der Federlagerung ist das zugehörige mechanische Ersatzmodell mit Hilfe einer Parameterstudie verändert worden, so dass die Hupkraftforderung erfüllt wird.

GranCloud is new application for the generation of real-time granular synthesis in the SuperCollider programming environment. Although the software was initially programmed for use in the interactive composition Creo, it was implemented as an independent program for use in any computer music project. GranCloud consists of a set of SuperCollider classes representing granular clouds and parameter objects defining control data for the synthesis. The software is very flexible, allowing users to create their own grain synthesis definitions and control parameters. Cloud objects encapsulate all of the control data and methods necessary to render virtually any type of granular synthesis. Parameter objects provide several simple methods for mapping grain parameters to complex changing data sets or to external data sources. GranCloud simplifies the complex task of generating granular synthesis, allowing composers to focus less on technological issues and more on musical considerations during the compositional process.

The distribution of urotensin-II-immunoreactivity (irU-II) was studied in the rat brainstem and spinal cord with the use of an antiserum against the human urotensin II (U-II) peptide. A population of ventral horn neurons in the spinal cord, hypoglossal nucleus, dorsal motor nucleus of the vagus, facial motor nucleus, nucleus ambiguus, abducens nucleus and trigeminal motor nucleus exhibited irU-II of varying intensities. The number of irU-II motor neurons was higher in the lumbar segments as compared to that of cervical, thoracic and sacral segments. Double-labeling the sections with U-II- and choline acetyltransferase (ChAT)-antisera revealed that nearly all irU-II ventral horn and brainstem neurons were ChAT-positive. The result provides the first immunohistochemical evidence of the presence of irU-II in cholinergic motoneurons of the rat spinal cord and brainstem.

In recent years, multi-functional reconfigurable antennas (MRA) has attracted much attention in wireless communication. The reconfigurable antenna can adapt itself with changing system conditions, and it can provide different multi-functionalities which can give better system performances. Instead of using multiple antennas, a single reconfigurable antenna can provide the same performance and occupy less space. By using the parasitic layer technique, an antenna can be turned into a reconfigurable antenna. The main objective of this thesis is to study radiation pattern reconfiguration of the horn antenna by using the parasitic layer concept. The MRA consists of a single horn, dielectric loaded truncated pyramid (DLTP), and the parasitic layer. The antenna that is chosen in this thesis is the horn antenna because it provides high directivity. DLTP is used for magnification purpose. The results show that three modes of operations that provide better performances compared to the single horn antenna are achieved.

No description available.

No description available.

The purpose of this study is to determine whether the current South African regulatory framework related to the illegal trade in wildlife, provides the means to regulate the illegal trade in rhino horn effectively. In an effort to combat and eradicate the illegal trade in wild species and parts therein, South Africa has enacted numerous laws and it has ratified various international conservation Conventions. However, with more than 800 rhinos having been killed in 2013 alone, it is doubtful whether these laws and conventions are adequate. The first chapter is an introductory chapter summarising the latest statistics on rhinos fatalities as a result of poaching, an estimate on their numbers as well giving a brief overview of what laws and conventions will be discussed in this study. In the second chapter the historical development of the trade in rhino horn is dissected, who the culprits are and the reason why rhinos are poached for their horn. The third chapter analyses international conventions that have been adopted by South Africa, including conventions such as the Convention on International Trade in Enangered Species, the Convention on Biological Diversity and agreements such as the General Agreement on Tariffs and Trade. The fourth chapter will focus more on the regional contributions which the African Union and Southern African Developing Community have made in an effort to combat the illegal trade in endangered species and their products such as rhino. The fifth and final chapter discusses South African legislation which comprises of the National Environmental Management Act, National Environmental Management Biodiversity Act, National Environmental Management Protected Areas Act and the Criminal Procedure Act so as to determine what influence it has had in the effort to regulate the illegal trade in rhino horn. The conclusion that can be drawn from this study is that the South African regulatory framework on paper is indeed adequate enough to regulate and even eradicate the illegal trade in rhino horn. The reason, however, for it’s currently failure is attributable to a lack of enforcement of these measures as a result of a lack of provisions holding entities accountable. / LLM (Import and Export Law), North-West University, Potchefstroom Campus, 2015

The purpose of this study is to determine whether the current South African regulatory framework related to the illegal trade in wildlife, provides the means to regulate the illegal trade in rhino horn effectively. In an effort to combat and eradicate the illegal trade in wild species and parts therein, South Africa has enacted numerous laws and it has ratified various international conservation Conventions. However, with more than 800 rhinos having been killed in 2013 alone, it is doubtful whether these laws and conventions are adequate. The first chapter is an introductory chapter summarising the latest statistics on rhinos fatalities as a result of poaching, an estimate on their numbers as well giving a brief overview of what laws and conventions will be discussed in this study. In the second chapter the historical development of the trade in rhino horn is dissected, who the culprits are and the reason why rhinos are poached for their horn. The third chapter analyses international conventions that have been adopted by South Africa, including conventions such as the Convention on International Trade in Enangered Species, the Convention on Biological Diversity and agreements such as the General Agreement on Tariffs and Trade. The fourth chapter will focus more on the regional contributions which the African Union and Southern African Developing Community have made in an effort to combat the illegal trade in endangered species and their products such as rhino. The fifth and final chapter discusses South African legislation which comprises of the National Environmental Management Act, National Environmental Management Biodiversity Act, National Environmental Management Protected Areas Act and the Criminal Procedure Act so as to determine what influence it has had in the effort to regulate the illegal trade in rhino horn. The conclusion that can be drawn from this study is that the South African regulatory framework on paper is indeed adequate enough to regulate and even eradicate the illegal trade in rhino horn. The reason, however, for it’s currently failure is attributable to a lack of enforcement of these measures as a result of a lack of provisions holding entities accountable. / LLM (Import and Export Law), North-West University, Potchefstroom Campus, 2015

This thesis examines the use of various osseous raw materials in craft activities in the Mälaren region during the Middle Ages. Places studied are: Birka, Sigtuna, Nyköping, Strängnäs and Uppsala. The aim is to capture both chronological and spatial changes in the use of osseous raw materials. Species and materials used reflect regional as well as international networks and how they change during time. The spatial distribution of waste from craft activities, its materiality and temporality mirror activities in different social contexts.  Quantitative and qualitative changes in the handling and exploitation of raw materials reflect varying and changing views of its value and how craft and exchange is affected by both a social and economic agency. In Birka, osseous waste material associated with craft was collected by Hjalmar Stolpe in the 1870s. An examination of the assemblage shows that imported material comprises a significant part of the collection. About a third of the waste consists of imported antler of red deer and reindeer. Red deer is particularly abundant (21%), signifying the importance of southern trading networks. The presence of whalebone can also be linked to south-western trading routes. The waste material collected during excavations in Sigtuna and representing the period c. 980-1300 has a different composition, reflecting different networks and perhaps different means of trade and production. As in Birka, elk antler constitutes the main bulk of the raw material used. Red deer antler is extremely limited, forming less than 1% of the material, appearing continuously though in small amounts from c. 1020-1300.  Reindeer antler is distinctly present in the oldest phase, c. 980-1000. This occurrence might represent a relic of the northern network manifested at Birka. An isotopic study indicates an origin in a forested biotope. After this initial phase the use of reindeer antler becomes as rare as that of red deer until the second half of the 12th century, indicating that the antler craft operated on a minor scale without any demand for long-distance trade in raw materials. A change occurs in the last quarter of the 12th century when large quantities of reindeer antler appear once more. Isotope signatures indicate an origin in more mountainous regions. This coincides with the introduction of another traded raw material of an arctic origin: walrus tusk. The craft had become more marked oriented. This is manifested in larger deposits of debris, a wider range of materials used, including bones from various domestic animals, but also the handling and exploitation of the material changes indicating a different view of production, trade and the value of raw materials than previous. This shift coincides with the introduction of minted silver. Western influences are evident both in the material culture and in the faunal assemblage. It is likely that a majority of the reindeer antler as well as the walrus tusk present in these later phases have a Norwegian origin. In the late 1100s and early 1200s craft in osseous material occur in other towns that emerge in the region but it seems to appear in new social contexts. Small assemblages of antler debris have been found in Uppsala, but the activities they represent lack the spatial continuity that exist in contemporary environments in Sigtuna and Strängnäs, indicating short lived occasional activities in a loosely regulated urban environment. Craft activities dependent purely on bone from domestic animals appear in the 1200s in Nyköping, Uppsala and Strängnäs. They represent craft activities in a new social context outside the private sphere of the local elite and instead subordinated other craft activities where domestic animals have been exploited on a large scale beyond the domestic household. Antler craft represents a social practise in the realms of the local elite with a continuity stretching back to the Iron Age. Monetization and an increasingly feudal society redefine social relations and practise. This can be seen in the occurrence of craft in new contexts in the late 1100s and 1200s, reflecting heterogeneity in social and economic functions in and between the towns in the region.

This thesis provides modern transcriptions for horn of twenty-six two- and three-voiced canons by Johann Walter, thereby adding to the literature available from the sixteenth century for that instrument. This project specifically attempts to introduce the high school and college student hornist to modal music in strict fugal form; the transcriptions appear as an appendix. The topics discussed in the body of this thesis include the canon, Johann Walter's life and significant contributions, sixteenth-century instrumental music, musicians' guilds, the zink, and the horn. This work is not intended to offer a comprehensive history of any of these areas, but to aid the teacher and student in the preparation and performance of these transcriptions.