Indonesia is a tropical country, because its area that crosses the equator has enormous solar potential, with a radiation magnitude of 4.80 kWh / m2 / day / day or equivalent to 112,000 GWp. Meanwhile, the solar energy received by the earth is 1.74 x 1017 W / hour, of which about 1-2% is converted into wind energy. However, in terms of total energy potential, Indonesia only uses around 10 MWp of solar energy, the difference is that wind energy which is planned to reach 250 MW in 2025 only uses 1 MW of the total potential. Skyscrapers are places with enormous wind energy potential. Because if the height exceeds 150 m, the reference point of the building can be called a skyscraper, which will cause high wind speed at the top of the building. This phenomenon is caused by the influence of the friction force which suppresses the wind speed, therefore the higher the position, the higher the wind speed. With this potential, to provide additional power and help save energy in existing facilities in the building, a smart photovoltaic and vertical turbine prototype design was created. The prototype design is a combination of weathered turbines and solar panels, the reason for using this type of turbine is because it can rotate at low wind speed (low wind speed) and has a very simple structure. In addition, because it uses a vertical shaft, the generator and gearbox can be placed close to the ground, making maintenance easier. The working principle of this prototype is designed to use a turbine to convert wind energy on the roof of the building into electrical energy, then mix it with electrical energy converted from solar energy by solar panels, so that electrical energy will be more optimal.

Software engineering is the manner of making use of engineering studies and alertness packages to the design, improvement and renovation of software program. For software program builders or college students majoring in data engineering, the software program renovation manner is a totally complicated activity. Software renovation manner charges account for 40% to 80% of the whole software program engineering manner. The software program renovation manner is resulting from based programming, inadequate understanding domains, and application documentation. In this study, researchers attempted to apply the Java programming language and c / c ++ to deal with supply code truncation. After finishing this manner, this system code may be divided into code and remarks. This report could be used to gain data approximately the manner of knowledge this system from the software program renovation manner. For supply code slicing, the writer makes use of normal expressions, specifically textual content processing strategies or patterns. Using normal expressions can accelerate the manner of locating remarks to your application. The end result of this study is to construct software primarily based totally on open supply code (loose license) so that scholars and trendy programmers can use it to assist apprehend this system. According to the effects of the researchers' testing, the recuperation price is 100% and the accuracy is 100%.

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Indonesia merupakan negara kepulauan memiliki keanekaragaman hayati terbesar di dunia, hal ini disebabkan karena adanya keunikan topografi dasar laut Indonesia. Salah satu keanekaragaman spesies yang ada adalah 950 biota terumbu karang sebagai habitat dan ekosistem laut. Terumbu karang berfungsi sebagai tempat memijah biota laut, pelindung gempuran ombak bagi pantai dan bernilai estetika. Pantai wisata Pasir Putih Situbondo termasuk andalan tempat wisata di Jawa Timur. Pantai ini memiliki terumbu karang yang berada pada nilai 23-49% yang termasuk ke dalam kategori rendah. Pantai di Situbondo ini memiliki dua site dalam kondisi baik dan dua site dalam kondisi cukup. Agar kondisi terumbu karang meningkat menjadi kategori sangat baik dan mencegah adanya kerusakan, diperlukan upaya untuk melakukan rehabilitasi. Salah satu upaya dapat dilakukan menggunakan terumbu karang buatan dari cangkang kerang dan beton yang dihasilkan dari masyarakat sekitar pantai. Pemberdayaan masyarakat perlu dilakukan untuk mendukung pelestarian terumbu karang yang dapat mempengaruhi keberadaan ikan dan biota laut lainnya. Pemberdayaan masyarakat ini difokuskan pada aktivis lingkungan, kelompok masyarakat pengawas (pokmaswas), serta masyarakat di daerah lingkungan wisata Pasir Putih diawali dengan pembekalan pengalaman dan ketrampilan dalam pembuatan terumbu karang berbasis eco-friendly. Kegiatan meliputi penyampaian materi secara hybrid (luring dan daring), praktik pembuatan terumbu buatan, penenggelaman hasil terumbu buatan dan monitoring.

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