Judul: Analisis Performa Vuforia pada Unity untuk Pengembangan Prototipe Augmented Reality Aplikasi Museum Serangga.
Abstrak: Museum Serangga di Institut Pertanian Bogor (IPB) menyimpan banyak jenis serangga. Dengan menggunakan aplikasi interaktif, pengunjung Museum Serangga IPB yang sebelumnya tidak dapat berinteraksi dengan spesimen yang dipajang dapat melihat bagian serangga dengan lebih detail. Salah satu fitur dari aplikasi interaktif Museum Serangga IPB adalah augmented reality (AR). Fitur AR akan memudahkan pengguna aplikasi untuk melihat informasi terkait spesimen serangga yang dipajang di Museum Serangga IPB dengan cara menampilkan informasi detail beserta model 3 dimensinya. Salah satu Software Development Kit (SDK) yang berfokus pada pengembangan aplikasi AR adalah Vuforia. Masalah yang ada adalah fokus dan kontras pada kamera saat pemindaian menyebabkan aplikasi AR tidak berhasil memindai penanda. Dengan analisis performa, didapatkan lingkungan ideal yaitu dengan menggunakan ukuran kode QR 7,5 sampai 10 cm2 dengan jarak 20 sampai 35 cm pada ruangan dengan sumber cahaya bohlam 5 watt, neon 5 watt, neon 18 watt.
Keyword: performa rekognisi, museum, markerbased augmented reality, Unity, Vuforia

Judul: Augmented Reality Application Prototype for The IPB Insect Museum Using Unity and ARCore Image Tracking
Abstrak: Serangga berperan penting dalam kehidupan manusia sehingga diperlukan sebuah museum yang dapat menampung dan menyajikan informasi tentang keanekaragaman serangga tersebut kepada masyarakat. Museum Serangga Institut Pertanian Bogor memiliki banyak informasi dari aneka spesies serangga yang ada di Indonesia, tetapi interaktivitasnya masih terbatas. Penelitian ini mengembangkan sebuah prototipe aplikasi Android berbasis augmented reality (realitas berimbuh) menggunakan Unity untuk memberikan sarana interaktif bagi pengunjung. Pengembangan menggunakan metode image tracking agar pengguna bisa berinteraksi dengan spesimen di museum dengan mengarahkan kamera ke spesimen yang ingin dikenal lebih lanjut. Besarnya sudut pindai mempengaruhi tingkat keberhasilan rekognisi citra pada image tracking. Hasil pengujian menunjukkan bahwa metode image tracking dapat digunakan dengan baik pada sudut pindai 0° ketika diterapkan pada serangga yang berbentuk tiga dimensi yang terdapat di Museum Serangga IPB. Intensitas cahaya, jarak pindai, dan fokus kamera menjadi faktor lain yang mempengaruhi keberhasilan rekognisi. Responden menilai informasi pada aplikasi yang hasilkan masih umum dan perlu ditambah., Insects play an important role in human life, so we need a museum that can accommodate and present information about the diversity of insects to the public. The IPB University Insect Museum has a lot of information on various insect species in Indonesia, but its interactivity is still limited. This research develops an Android application prototype based on augmented reality using Unity to provide an interactive tool for visitors. The development uses image tracking method so that users can interact with the specimens in the museum by pointing a smartphone camera at the specimen they want to know more. The size of the scan angle affects the success rate of image recognition in image tracking. The test results show that image tracking method can be used properly at a scanning angle of 0° when applied to 3-dimensional insects in the Insect Museum of IPB University. Light intensity, scan distance, and camera focus are other factors that affect recognition success rate. Respondents assessed that the information on the application that was produced was still general and needed to be added.
Keyword: Android, Augmented Reality, Image Tracking, Insect, Museum

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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