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"Badai geomagnet merupakan salah satu fenomena alam terpenting dalam sistem cuaca antariksa yang keberadaannya bersifat acak dan dapat menyebabkan gangguan pada sistem komunikasi HF, navigasi, operasional satelit dan jaringan listrik. Oleh karena itu, pembangunan dan pengembangan software pendeteksi badai geomagnet secara otomatis dengan menggunakan karakteristik Sudden Commencement (SC) sebagai indikator masukannya sangatlah diperlukan. Hal ini dikarenakan jika pendeteksian dilakukan secara manual, pengamat harus melakukan monitoring data selama 24 jam sehingga terasa sangat tidak efisien. Dengan menggunakan data komponen H stasiun Biak (BIK), Pontianak (PTN) dan Kototabang (KTB) near real time sepanjang tahun 2009, maka dilakukan pengembangan Prototipe Software Deteksi Otomatis SC Badai Geomagnet (PSDO_SC) menjadi Software Deteksi Otomatis SC Badai Geomagnet (SDO_SC). Selain itu, juga dilakukan kajian akan dampak badai geomagnet terhadap trafo di Indonesia sebagai upaya mendukung kegiatan pemantauan cuaca antariksa Pusat Pemanfaatan Sains Antariksa, LAPAN. Hasilnya adalah telah berhasil diperoleh sebuah SDO_SC dengan akurasi yang cukup baik dalam mendeteksi kejadian badai geomagnet dan mampu untuk beroperasi secara stabil pada data medan geomagnet stasiun Biak, Pontianak dan Kototabang near real time berbasis SMS gateway danemail. Rencananya, Software akan mulai dioperasikan secara penuh tahun 2010."

"The main contribution of this article is the mapping of the electric fields in transmission powerlines using the Charge Simulation Method (CSM), combined with an embedded system. In this research, a computational routine was written in MATLAB®. The electric field intensity is calculated at a 1 meter height on right-of-wayand between towers. The mapping is performed for a space between towers and considers that the maximum arrow of the conductors occurs in the middle of this distance, what provides a computational result where the profile of the electric field can be analyzed. The bundle conductor height varies along the distance between towers in order to improve the values of the calculated field. The results can be seen in different graphics (three-dimensional, bi-dimensional, a slice of the field and others). Charge Simulation Method is a power tool for calculating intensity field of high voltage systems, so this is a motivation for the use of the method. A series of detectors are used to obtain the data of the voltage that is provided to the load. These data are captured by a microcontroller and transmitted to the operational center. Using this data, the measure of the field is possible."

"The main contribution of this article is the mapping of the electric fields in transmission power lines using the Charge Simulation Method (CSM), combined with an embedded system. In this research, a computational routine was written in MATLAB®. The electric field intensity is calculated at a 1 meter height on right-of-way and between towers. The mapping is performed for a space between towers and considers that the maximum arrow of the conductors occurs in the middle of this distance, what provides a computational result where the profile of the electric field can be analyzed. The bundle conductor height varies along the distance between towers in order to improve the values of the calculated field. The results can be seen in different graphics (three-dimensional, bi-dimensional, a slice of the field and others). Charge Simulation Method is a power tool for calculating intensity field of high voltage systems, so this is a motivation for the use of the method. A series of detectors are used to obtain the data of the voltage that is provided to the load. These data are captured by a microcontroller and transmitted to the operational center. Using this data, the measure of the field is possible."

"Skripsi ini dibuat untuk mengenali suatu jenis kawanan ikan berdasarkan perubahan fase dengan menganalisis perubahan fase dari gelombang yang dipantulkan oleh gerakan kawanan ikan secara real-time. Gelombang yang diterima dari hasil pantulan tersebut akan dikenali dengan metoda Hidden Markov Model (HMM) yang telah diprogram di dalam perangkat lunak Matlab. Perubahan fase pada masing-masing kelompok ikan disebabkan oleh perbedaan pada bentuk dan bahan permukaan ikan, kecepatan ikan, serta formasi susunan ikan dalam suatu kelompok yang strukturnya mengikuti gerakan schooling suatu kawanan ikan. Dimana setiap ikan memiliki karakteristik yang unik.

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This thesis was made to recognize the kind of fishes from their phase changing by analyzing phase changing of the reflected waves that received from the fishes movement in real-time. The reflected waves was recognized using the Hidden Markov Model which was programmed in Matlab software. Phase changing in the group of fishes was caused by the difference of the fish form, the surface of the fish, the speed of the fish movement, also the formation of fish in a group that make a schooling movement. Because of that, many group of fishes could have unique characteristic."

"Control concurrency on RTDBS more complex than in conventional database system, Basides guarantee database consistency, on RTDBS control concurency can support transaction deadlines. Mean while validities and value of data item change depend on time. Conventional control concurrency algorithm can be devided to two groups: Pessimistic concurrency control (PCC) and Optimistic Concurrency Control (OCC). PCC prevent conflict between transactions executed while OCC overcome between transactions after that transaction executed that restarted in conflict happened. These algorithms have weakness if applied in RTDBS that gives tight time on transaction execution bacause as a parameter is number of transactions done before deadlines, not only number of concurrency maximum and throughput. To overcome those two algorithms weakness some researches done. Between results modifications is speculative concurrency control and Hybrid concurrency control for the Nested model. But between alternatives there are some weaknesses, so it needs development for better control concurrency for RTDBS. "