4 research outputs found
Iterative Decremented Step-Size Scanning-based MPPT Algorithms for Photovoltaic Systems
No full textIn the Proc. of The 9th International Conference on Information Technology and Electrical Engineering (ICITEE 2017)Iterative decremented step-size scanning-based maximum power point tracking (MPPT) algorithms are presented in this paper. The change of partial shading conditions is a\ud
main problem in photovoltaic systems. Power curves of the systems will contain some local maximum power points, beside a global maximum power point. The curves also change depending on environmental climates, which affect the partial shading conditions. Three iterative scanning-based MPPT algorithms are proposed to solve the problem, i.e. decremented window scanning, peak bracketing (PB) method and PB with initial scanning. A photovoltaic system coupled with a DC/DC converter is modeled in SPICE for verification and simulation purposes. The simulation results have presented that, for some cases, those MPPT algorithms can find out effectively the global maximum\ud
power points of the considered photovoltaic system. They also required efficiently with relatively small number perturb-andobserve steps to reach global maximum power points
FAKTA ILMIAH YANG TERKANDUNG DALAM SURAH AN-NABA' AYAT 12-16
No full textThe article entitled "scientific facts contained in the surah naba verses 12-16". Discuss the subject matter, namely how the essence contained in the verse, both from the etymological and terminological understanding and through the views of the interpreter.
In reviewing the meaning and scope of the surah 12-16, the author is more likely to interpret each of the mufrodat words in the verse, also using the method of interpretation, theological, and scientific approaches. In the hadith research the author uses the Tahlili interpretation method by collecting verses that are in accordance with the topics in which there are discussion points, then analyzing with the logic of thinking induction and deduction.
The result concludes that in this verse Allah has collected the mention of all plants that are grown by the earth, because there are plants that have stems and some that are not. First - the types of plants that have leafy leaves so that they are called gardens. Second - types of plants that have seeds and clumps. Some are not, so they are called ordinary plants. The mention of plants that release seeds takes precedence because it is the main food for humans. After that, other types of plants followed which were food for other types of animals. And finally the mention of gardens that produce fruits and is not a staple of human food
Implementasi Media Video Youtube dalam Pembelajaran PPKn untuk Meningkatkan Motivasi Belajar Siswa Kelas VI MI Miftahul Abror
No full textBased on the results of observations by the author, it shows that the majority of sixth grade students in the academic year 2019/2020 MI Miftahul Abror are students who have intelligent characteristics and have a high curiosity, with a background of village children but are accustomed to using gadged, mobile or laptop to access the internet. On the other hand, the development of technology is developing quite rapidly, so that this development has changed the paradigm of the community in seeking and obtaining information, which is no longer limited to newspaper, audio-visual and electronic information, but also other sources of information, one of which is through Internet Network.To help and facilitate teaching, teachers can utilize technology to be able to develop interactive and integrative learning media tailored to the needs and learning material being taught. For that reason, it is necessary to use the internet as a learning medium in this case I use YouTube videos in PPKn learning to improve student motivation in class VI MI Miftahul Abror Karangploso Malang Regency.The purpose of writing this journal is to know and understand about:1. The steps of making youtube video media in PPKn learning to increase students\u27 motivation in class VI MI Miftahul Abror.2. Implementation of YouTube video media in PPKn learning to improve student motivation in class VI MI Miftahul Abror.3. Knowing the evaluation of YouTube video media in PPKn learning to improve student motivation in class VI MI Miftahul Abror.With these learning media proven able to increase students\u27 motivation and learning achievement
