Judul: Aplikasi IPB-Sprachprogramm untuk pelajaran bahasa Jerman tingkat pengantar
Abstrak: Sistem pendidikan jarak jauh berbasis web merupakan salah satu alternatif pernerataan kesempatan Edalam bidang pendidikan di Indonesia. Pada penelitian ini dilakukan pengembangan aplikasi XPB- Sprachprogramm yang membantu terselenggaranya proses belajar jarak jauh bahasa Jerman melalui layanan web dengan metode implementasi secara asinkronus. Metode penelitian yang digunakan untuk pengembangan aplikasi ini adalah tahapan-tahapan siklus pengembangan sistem menurut Davis (1983). Kelas Einführungsstufe adalah kelas bahasa Jerman tingkat pengantar yang diselenggarakan oleh Laboratorium bahasa Jerman pada UPT Bahasa IPB. Permasalahan dan kesulitan yang berhubungan dengan proses belajar mengajar yang dihadapi siswa pada kelas tersebut menjadi dasar untuk merancang aplikasi IPB-Sprachprogramm Prinsip-prinsip belajar jarak jauh (distance learning) dan konsep-konsep pendidikan berbasis web (web based education) diterapkan pada IPB-Sprachprogramm, sehingga aplikasi ini dapat dimanfaatkan oleh seluruh pengguna yang belajar secara mandiri melalui koneksi Internet di mana saja dan kapan saja. Materi-materi pengajaran disajikan dalam bentuk halaman-halaman web dengan menerapkan konsep hypermedia yang meminimalkan penggunaan grafis. Pada aplikasi ini juga disediakan beberapa fasilitas pendukung proses pembelajaran, seperti latihan soal, ujian on line, forum tanya jawab antara siswa dan pengajar, serta kamus elektronik. Pada kamus elektronik, dapat dilakukan pencarian kemiripan kata dengan menggunakan metode n- gram. Penentuan nilai n-gram yang digunakan adalah berdasarkan hasil pengujian statistik deskriptif dan statistik inferensi (paired sample T test dan uji korelasi õivariate) pada data-data hasil percobaan dengan Eruang sampel yang telah ditentukan. Pada kamus Jerman-Indonesia diterapkan kombinasi pencarian kesamaan string dengan 4-gram dan 5-gram, sedangkan pada kamus Indonesia-Jerman diterapkan pencarian kesamaan string dengan 4-gram...
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Judul: Pengembangan WordNet Bahasa Indonesia Berbasis Web
Abstrak: WordNet is an electronic lexical database that classifies categories of words such as nouns, adjectives, verbs, adverbs, and others in a set called synonim set (synset). WordNet for English has been developed by Princeton University. The purpose of this study is to build an web-based WordNet for Bahasa Indonesia. We used evolutionary method that started by building the parts that were wellunderstood as the first implementation and continuously developed based on comments from users until an adequate application had been developed. The data sources of the application are Kamus Besar Bahasa Indonesia (KBBI) and Indonesian thesaurus. Our application can display the meaning/definition of a word and display a word’s relations with other words. This application can also be used to add new words, definitions, examples, and word relationships; this function can only be done by users who have registered and been approved for registration by administrator. In this study we also developed an XML document format and XML Schema Definition to assist others in obtaining data from the system.
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Judul: Thermal Characteristics and Dynamics of Tropical Cyclone over Western North Pacific Ocean: A Case Study of Typhoon Songda (Chedeng) 2011
Abstrak: The frequent occasion of Tropical Cyclone (TC) over Western North Pacific (WNP) Ocean lies from 10˚N to 26˚N and 121˚E to 170˚E. Sources of TC development come from warm ocean temperature where latent heat is released during condensation processes and subsequently concentrated in the boundary layer. Relative humidity at 850-700 hPa is responsible to produce the most intense storm. Meanwhile, weak vertical wind shear between 850-200 hPa is one of the dynamical factors that lead to the development of TC. Pressure level of 850-200 hPa is chosen to minimize the thermodynamic effect in the lower troposphere. Typhoon Songda (Chedeng in the Philippines) or TSC lasted from May 18th to 30th, 2011 and strengthened into powerful Super Typhoon stage between May 24th and 27th. Long curving track and the exhibition of all sequences of TC life cycle, TSC is then considered as an ideal case of TC. The objective of the study with case of TSC is to investigate the role of thermal characteristics and dynamics on TC intensity. The research is carried out by using Advanced Research of Weather Research and Forecasting model (WRF ARW model) version 3.3. Two domains are employed in the model. The first domain situate from 02˚N to 40˚N and 118˚E to 149˚E and cover spatial resolution () of 33.1 km. The second domain situate from 09˚N to 27˚N and 119˚E to 132˚E with of 11 km. Timestep of the model () is 120 seconds. The model is supported by the following physical parameterization, i.e., Yonsei University Scheme (YSU) in the boundary layer, Kain-Fritsch scheme (KF) in the cumulus, and WRF Single-Moment 3-class scheme in the microphysics. Initial meteorological condition prior to the formation of the cyclone is generated using WRF ARW standard-release model. Sensitivity of the model output is obtained from a selected single-parameter change scenarios, namely, 10 % to 20 % decrease and increase of wind shear initial data at 850-200 hPa, and by 10 % to 20 % decrease of relative humidity initial data at 850-700 hPa. The result showed that the negative correlations between wind shear and intensity are found in wind shear scenarios. Wind shears of 10 ms-1 which lead to strengthening of the wind intensity in the early period of Typhoon development are found in wind shear scenarios. The effect of wind shear changes on wind intensity is statistically significant in the 20 % wind shear scenarios. During mature stage, weak wind intensity occurred when wind shear increase as given in the WRF standard-release and the 20 % decreasing scenario. Different situation is found in the 20 % increasing scenario where wind shear tend to weak and lead to strong wind intensity at this stage. Meanwhile, the reduction of moisture supply at 850-700 hPa resulting from 20 % decreasing relative humidity play a major role in the weakening of wind intensity and reduces mechanical energy of the cycle process as much as 300 J kg-1.
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