Judul: Perancangan User Experience Aplikasi Mobile Eksplorasi Wisata Sejarah di Kebun Raya Bogor
Abstrak: Kebun Raya Bogor (KRB) memiliki peninggalan sejarah selama dua abad yang tersebar luas di lahan dengan ukuran 87 hektar. Banyaknya minat wisatawan untuk melakukan eksplorasi wisata sejarah dan kurang optimalnya pengelolaan objek peninggalan sejarah menjadi permasalahan bagi para pengunjung KRB. Permasalahan yang dialami yaitu kurangnya informasi sejarah dan kurang optimalnya fasilitas interpretasi yang ada. KRB Heritage merupakan aplikasi yang dapat memberikan pengalaman eksplorasi wisata sejarah di KRB. Pengunjung dapat melakukan eksplorasi dan mendapatkan informasi sejarah dari beberapa objek wisata sejarah dalam satu rute kunjungan di KRB. Perancangan aplikasi menggunakan metode Garrett yaitu Five Planes User Experience Elements. Pengujian dilakukan untuk mengetahui kualitas usability aplikasi menggunakan teknik think aloud. Evaluasi dilakukan dengan melakukan pengujian pada 3 partisipan untuk low fidelity prototype dan 5 partisipan untuk medium fidelity prototype. Hasil akhir evaluasi usability testing mendapatkan success rate sebesar 100% untuk waktu dan task completion. Semua partisipan puas dengan pengalaman eksplorasi dan tampilan yang diberikan. Prototipe mudah digunakan dan informasi yang diberikan menarik.
Keyword: eksplorasi sejarah, Kebun Raya Bogor, usability, user experience

Judul: Perancangan user experience KRB Apps menggunakan five planes user experience elements
Abstrak: Keterbatasan informasi lokasi objek wisata di Kebun Raya Bogor (KRB) membuat pengunjung kesulitan mencari rute menuju objek wisata. KRB Apps adalah aplikasi mobile yang membantu pengguna menemukan rute terpendek menuju objek wisata di KRB berdasarkan lokasi pengguna secara real-time. Penelitian ini berfokus pada pengembangan user experience (UX) menggunakan metode five plane user experience elements. Metode tersebut diawali dengan analisis kebutuhan pengguna dan tujuan bisnis stakeholder pada lapisan strategy plane. Penentuan fitur dan spesifikasi fungsional dilakukan pada lapisan scope plane. Hierarchical task analysis (HTA) digunakan dalam perancangan interaksi dan analisis task pada lapisan structure plane. Pembuatan prototipe low fidelity dan medium fidelity masing-masing dilakukan pada lapisan skeleton plane dan surface plane. Prototipe low fidelity dan medium fidelity dievaluasi menggunakan metode think-aloud evaluation. Berdasarkan hasil evaluasi tersebut, terdapat beberapa icon yang sulit dimengerti dan terdapat beberapa interaksi yang tidak sesuai dengan ekspektasi pengguna. Meskipun begitu, partisipan mengapresiasi tampilan visual prototipe dan pengalamannya pada saat menggunakan kedua metode navigasi (navigasi suara dan navigasi augmented reality) pada prototipe KRB Apps.
Keyword: Kebun Raya Bogor, mobile application, user experience

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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