Judul: Designing Zakat Learning Interactions for Mualaf in Hijrah Id Apps with The Wheel Method
Abstrak: Penelitian ini dilakukan untuk merancang interaksi belajar zakat bagi mualaf dengan menggunakan metode the Wheel yang diperkenalkan oleh Hartson dan Pyla. Aplikasi Hijrah Id versi 1 telah dikembangkan oleh beberapa personil civitas departemen Ilmu Komputer IPB yang bekerja sama dengan Mualaf Center Baznas. Penelitian ini dilaksanakan dengan empat tahap yaitu: understand needs, design solutions, prototype candidates dan evaluate UX. Penelitian diawali dengan tahapan understand needs melalui interview dengan lima orang pembina mualaf. Revisit ke tahapan evaluate UX dengan pengujian usability aplikasi Hijrah Id versi 1 kepada tiga orang mualaf dengan tingkat keberhasilan sebesar 90,5%. Tahapan understand needs kedua dilakukan dengan interview kepada empat orang mualaf. Hasil akhir penelitian ini berdasarkan tahapan design solutions dan prototype candidates berupa analisis perilaku dan kebutuhan mualaf yang direpresentasikan dalam bentuk user persona, user story, storyboard serta rancangan interaksi belajar zakat pada mualaf dalam bentuk medium-fidelity prototype., This research was conducted to test the usefulness of the Hijrah Id application and the interaction of zakat learning interactions for converts using The Wheel method introduced by Hartson and Pyla. The Hijrah Id application version 1 has been developed by several personnel of the Computer Science department of IPB in collaboration with the Mualaf Center of Baznas. This research was carried out in four stages, namely: understand needs, design solutions, prototype candidates and evaluate UX. The study began with the stage of understanding needs through interviews with five converts. Revisit to the UX evaluate stage by testing the usability of the Hijrah Id application version 1 for three converts with a success rate of 90,5%. The second understanding needs stage was carried out by interviewing four converts. The final results of this study were based on the stages of design solutions and prototype candidates in the form of an analysis of the behavior and needs of converts. The final result of this study is based on the solution design stage and prototype candidate in the form of behavior analysis and needs of converts which are represented in the form of user personas, user stories, storyboards, and the design of zakat learning interactions for converts in the form of a medium-fidelity prototype.
Keyword: Hijrah Id, alms, converts

Judul: Rancang Bangun Arsitektur Penanganan Dini Mualaf pada Aplikasi Hijrah ID dengan Metode UML Development System
Abstrak: Berdasarkan data dari Mualaf Center Indonesia bahwa tren mualaf tiap tahun meningkat dengan persentase sekitar 31,2% selama 4 tahun terakhir. Tantangan dan hambatan dialami mualaf antara lain adanya ancaman atau intimidasi dari keluarga atau kerabat dekat sehingga menyebabkan kondisi psikologis mualaf menjadi terganggu dan menghambat proses belajar agama Islam. Hijrah ID adalah sebuah aplikasi berbasis Android yang memberikan layanan untuk penanganan dini bila hal-hal yang tidak diinginkan terjadi pada mualaf serta pembelajaran mengenai agama Islam. Metode pengembangan aplikasi HIJRAH ID menggunakan UML Development System. Hijrah ID memiliki lima fitur utama di dalamnya, yakni fitur Ta’shil, Konsultasi, Artikel, Jadwal Kajian, dan Panic Button. Hasil dari penelitian ini berupa rancangan prototipe Panic Button. Panic Button merupakan suatu layanan untuk membantu mualaf ketika sedang memerlukan bantuan yang harus ditindak secara cepat tanggap sehingga harapannya mengurangi tindakan yang tidak diinginkan. Panic Button menghubungkan mualaf dengan ustaz berdasarkan posisi saat menekan panic button dan memberikan perizinan oleh ustaz.
Keyword: Android, mualaf, panic button

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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