Judul: Pengembangan Modul Back End Alumni dan Mahasiswa pada Aplikasi IPB Connect
Abstrak: Alumni berperan sebagai pelopor pembangunan dan pengembangan jaringan perguruan tinggi. Hubungan baik antar alumni dapat berperan besar terhadap pengembangan perguruan tinggi ke depannya. Institut Pertanian Bogor (IPB) sudah memiliki wadah untuk alumni yaitu himpunan alumni IPB, namun IPB belum memiliki teknologi bagi alumni, untuk dapat saling bertukar informasi. Penelitian ini membangun back end pada Aplikasi IPB Connect. IPB Connect merupakan aplikasi yang menyediakan fasilitas untuk alumni dan mahasiswa agar dapat bertukar informasi. Metode yang digunakan dalam pengembangannya adalah prototyping. Aplikasi ini akan dibangun dengan menggunakan bahasa pemrograman Node.js, framework Express.js berbasis REST API dan basis data MongoDB. Aplikasi ini bertujuan agar alumni dan mahasiswa dapat saling bertukar informasi. Pengembangan API fitur lowongan kerja, informasi alumni dan share memory telah dilakukan. Semua API tersebut sudah sesuai dengan kebutuhan tim front end dan dapat digunakan di api.stage.ipb-connect.com.
Keyword: IPB Connect, Node.js, REST API

Judul: Pengembangan Modul Back End pada Aplikasi IPB Connect Menggunakan Metode Prototyping.
Abstrak: IPB memiliki organisasi yang memfasilitasi hubungan antara alumni dan mahasiswa, yaitu Himpunan Alumni IPB. Himpunan Alumni IPB perlu sebuah aplikasi untuk mempermudah hubungan komunikasi antara alumni dan mahasiswa, sehingga dikembangkanlah aplikasi IPB Connect. Aplikasi tersebut sudah dikembangkan di penelitian sebelumnya tetapi masih dalam tahap pengembangan. Maka dari itu, aplikasi IPB Connect harus dikembangkan lebih lanjut baik dari sisi back end maupun sisi front end. Pengembangan modul back end pada aplikasi IPB Connect dikembangkan menggunakan metode prototyping. Lingkungan pengembangan yang digunakan, yaitu bahasa pemrograman Node.js, kerangka kerja Express.js, basis data MongoDB, dan arsitektur REST. Pengembangan modul back end akan menghasilkan API dengan arsitektur REST yang akan digunakan oleh tim front end dalam pengembangan antarmuka aplikasi IPB Connect. Pengembangan modul back end pada aplikasi IPB Connect selesai dalam dua iterasi metode prototyping dan sudah dapat digunakan untuk memenuhi kebutuhan tim front end.
Keyword: Express.js, IPB Connect, Mongodb, Node.js, prototyping, REST

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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