Judul: Sistem informasi keberadaan alat dan mesin pertanian di Indonesia berbasis internet
Abstrak: Di Indonesia, alat dan mesin pertanian (alsintan) telah digunakan secara luas. Permasalahan yang dihadapi kalangan petani dan penyuluh pertanian adalah sulitnya mencari informasi tentang keberadaan suatu alsintan tertentu di Indonesia, hal ini disebabkan oleh belum adanya satu sistem informasi yang secara mudah didapatkan oleh kalangan petani. Permasalahan lain adalah belum adanya kerjasama yang baik dalam penyebaran informasi, antara pihak lembaga penelitian, produsen maupun distributor alsintan di Indonesia.
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Judul: Rancang Bangun Sistem Akuisisi Data dan Sistem Informasi Penggunaan Alsintan (Studi Kasus Kabupaten Jombang).
Abstrak: Pemerintah memberikan bantuan berupa alat dan mesin pertanian (alsintan) kepada petani untuk meningkatkan produksi dan produktivitas petani. Guna mengetahui kinerja petani dalam memanfaatkan alsintan tersebut, pemerintah memerlukan suatu metode untuk menerima data pemakaian alsintan dari petani yang terpusat, komprehensif, dan mudah dimengerti. Tujuan penelitian ini yakni merancang dan membangun sistem akuisisi data dan sistem informasi penggunaan alsintan yang dapat digunakan oleh petani untuk memasukkan data harian penggunaan alsintan mereka dan juga dimanfaatkan oleh pemerintah untuk melihat data tersebut dan menjadikannya dasar dari pengambilan keputusan di masa depan atas kebijakkan pemberian bantuan alsintan yang mereka terapkan. Penelitian dillakukan dengan mengambil Kabupaten Jombang sebagai studi kasus untuk masalah ini. Sistem yang dibuat berbasis web, dengan menggunakan bahasa pemrograman tertentu untuk membuatnya. Metode yang digunakan adalah System Development Life Cycle yang terdiri atas investigasi masalah, analisis sistem, desain sistem, implementasi, dan diakhiri dengan pengujian serta maintenance. Hasil yang didapat adalah benar bahwa sistem dapat bekerja dengan baik, sistem dapat melakukan input data aktivitas alsintan dan menampilkannya di website sebagaimana yang diinginkan.
Keyword: alsintan, sistem akuisisi, sistem informasi, website

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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