This book deals with the challenge of exploiting ambient vibrational energy which can be used to power small and low-power electronic devices, e.g. wireless sensor nodes. Generally, particularly for low voltage amplitudes, low-loss rectification is required to achieve high conversion efficiency. In the special case of piezoelectric energy harvesting, pulsed charge extraction has the potential to extract more power compared to a single rectifier. For this purpose, a fully autonomous CMOS integrated interface circuit for piezoelectric generators which fulfills these requirements is presented. Due to these key properties enabling universal usage, other CMOS designers working in the field of energy harvesting will be encouraged to use some of the shown structures for their own implementations. The book is unique in the sense that it highlights the design process from scratch to the final chip. Hence, it gives the designer a comprehensive guide of how to (i) setup an appropriate harvester model to get realistic simulation results, (ii) design the integrated circuits for low power operation, (iii) setup a laboratory measurement environment in order to extensively characterize the chip in combination with the real harvester and finally, (iv) interpret the simulation/measurement results in order to improve the chip performance. Since the dimensions of all devices (transistors, resistors etc.) are given, readers and other designers can easily re-use the presented circuit concepts.
This book deals with the challenge of exploiting ambient vibrational energy which can be used to power small and low-power electronic devices, e.g. wireless sensor nodes. Generally, particularly for low voltage amplitudes, low-loss rectification is required to achieve high conversion efficiency. In the special case of piezoelectric energy harvesting, pulsed charge extraction has the potential to extract more power compared to a single rectifier. For this purpose, a fully autonomous CMOS integrated interface circuit for piezoelectric generators which fulfills these requirements is presented. Due to these key properties enabling universal usage, other CMOS designers working in the field of energy harvesting will be encouraged to use some of the shown structures for their own implementations. The book is unique in the sense that it highlights the design process from scratch to the final chip. Hence, it gives the designer a comprehensive guide of how to (i) setup an appropriate harvester model to get realistic simulation results, (ii) design the integrated circuits for low power operation, (iii) setup a laboratory measurement environment in order to extensively characterize the chip in combination with the real harvester and finally, (iv) interpret the simulation/measurement results in order to improve the chip performance. Since the dimensions of all devices (transistors, resistors etc.) are given, readers and other designers can easily re-use the presented circuit concepts.
Thorsten Tham highlights the fundamental changes that have swept Germany’s footballing landscape in recent years and presents theory-based impact hypotheses about forms of stimulus that can raise the loyalty of football-affine target groups before, during and after the game. Based on the example of traditional club VfL Bochum 1848 an online survey to analyze the influence of a Bundesliga match on different visitor target groups is conducted. The author discusses ways in which football clubs can change their multisensual approach to raise the profile of their club brand among football-affine target groups and increase loyalty to the club.
Inhaltsangabe:Introduction: The approach of this research paper is to give an overview about the Chinese automotive industry. An analysis of the People s Republic of China (PRC) shows the investment possibilities for foreign automotive manufactures. This research introduces the major opportunities and threats of political, social, economical, environmental, technological and legal dimensions within China. In the first part the Political System will be analysed by Christian Lutz. The historical and cultural roots are important to understand the political developments. The theoretical and actual politcal system and their problems will be shown. He also reflects the Social System with its different specifications. The current fall-back system with community health, retirement pension and unemployment will be analysed. Furthermore the potential opportunities and risks for automotive investors will be addressed. In the third part Economy Benjamin Pflüger point out that China is potentially the largest and one of the fatest-growing automotive markets in the world and therefore significant for all foreign automobile manufactures. There are both great opportunities and possible threats existing in China. The huge population, economic growth, increasing income and improved environment for consumers as well as China`s membership of the World Trade Organisation (WTO) are important for the future development of the global economy. This also leads to unavoidable consequences for the environment. The current situation and the environmental impact of China`s motorization, such as infrastructure shortage and air pollution, will be presented in sup-topic Environment . In the fifth chapter Technology Thorsten Iwanowski will introduce aspects of technology and technology management in China. As nowadays the main form of investment is the joint venture, this will be focused. The accelerating technological development within the last decades does not only generate advantages for the Chinese people. After having created several constitutions within the last 50 years, a modern and future oriented one has been passed. This constitution basing the new legal system will require fast and further legal rules and laws to meet the challenges of the Chinese future. These circumstances and their influence on the automobile industry will be pointed out in the part Legal System . The last years show an increasing volume of Foreign Invested Enterprises (FIE) within [...]
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