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This paper introduces a preliminary work for the design of a mini-dish cluster system for power general ion. Each mini-dish (typically has a 20 to 30cm in diameter) is designed with a simple parabolic profile, concentrating sun light (after the glass glazing cover to avoid dust deposition on the reflector and facilitate cleaning) onto a centrally located small plane(or concave) mirror which is placed on the bottom side of the transparent glass cover. The mirror with a mini-dish concentrator is designed to focus beam radiation onto a focal point before it enters a bundle of optical fibers connected to a remote receiver for power generation different options are considered In designing a mini-dish concentrator to maximize its effectiveness for the collection and use of solar energy.
The European Convention for the Protection of Human Rights and Fundamental Freedom has established one of the most effective regional system of protecting human rights. The principle of subsidiarity of the Convention does not reduce the effectiveness of the system. At the heart of it is the European Court of Human Rights. The Court has the jurisdiction to decide on individual applications, inter-state cases and advisory opinions. However, many individual applications have been dismissed because of jurisdictional questions or admissibility. Only after cases have passed jurisdictional hurdles such as exhaustion of domestic remedies, could the Court decide on the merits. Anonymous applications or applications already submitted to other international procedures shall be dismissed. The Court has been playing a pivotal role in protecting human rights in Europe and has been considered a model for other human rights institutions. Moreover, national courts in Europe are increasingly citing cases of the Court. Asia does not have its own human rights convention, while Europe, America and Africa have their own regional human rights systems covering their continents. Shared values are considered to be essential among regional nations for the success of regional human rights systems. However, culture differences among Asian states are not to be stressed too much. Effective human right systems in Asia could be possible if Asian states try to find common ground based on universality of human rights. If that arises, I believe, the experience of the European Court of Human Rights is likely to shed some lights for our future.
본 연구에서는 AVR 마이크로 컨트롤러를 사용하여 임베디드 태양추적장치를 개발하였다. 본 시스템은 Atmega128 마이크로 컨트롤러, 스텝 모터, 스텝 드라이브 모듈, CdS 센서 그리고 GPS 모듈 및 기타 부품들로 구성되어 있다. 태양추적장치는 광학적 방법과 천문학적인 방법에 의해 작동된다. 최초 태양추적은 천문학적인 계산방법에 의해 얻어진 결과에 따라 이루어지고 CdS에 의해 미세 조정이 이루어진다. 태양추적장치가 설치된 지점에서 GPS는 UTC(Universal Time Coordinated)와 위도 및 경도 데이터를 마이크로 컨트롤러에 전송한다. 전송되어진 데이터에 의해 실시간으로 태양위치, 일출 및 일몰시간이 계산되어 진다. 태양 추적에 필요한 데이터들은 범용 비동기화 송수신기(UART)를 통하여 컴퓨터로 전송 받을 수 있다. An embedded two-axis solar tracking system was developed by using AVR micro controller for enhancing solar energy utilization. The system consists of an Atmega128 micro controller, two step motors, two step drive modules, CdS sensors, GPS module and other accessories needed for functional stability. This system is controlled by both an astronomical method and an optical method. Initial operation is performed by the result from the astronomical method, which is followed by the fine controlled operation using the signals from Cds sensors. The GPS sensor generates UTC, longitude and latitude data where the solar tracker is installed. A database of solar altitude, azimuth, and sunrise and sunset times is provided by UART (Universal Asynchronous Receiver/Transmitter).
This paper reports an experimental investigation to design a tree-shaped wind power system using piezo-electric materials. The proposed system is to produce power if wind is strong enough to produce any bending motions in the energy converting elements. i.e.. piezo-electric materials. Two different kinds of piezoelectric materials are used in the present study to produce power by scavenging energy from the wind. The soft flexible one made the leaf element while the hard one was applied to the trunk portion of the tree requiring rather strong winds to generate any power. Although small. each leaf deems to play the role of a power producer and currents are continuously trickling down to the storage battery installed at the bottom of the system.