Judul: Perbandingan Arsitektur Informasi Repositori Institusi Terbaik di Indonesia dan Dunia
Abstrak: Sistem perangkingan repositori dapat dinilai sebagai cara untuk meningkatkan kinerja setiap institusi. Sistem perangkingan yang digunakan dalam penelitian ini berbasis Webometric versi Januari 2017. Arsitektur informasi berfokus pada sistem organisasi, sistem navigasi, sistem pelabelan dan sistem pencarian. Tujuan arsitektur informasi adalah untuk membantu pengguna mendapatkan informasi dan penyelesaian tugas. Penelitian ini menekankan kepada perbandingan kualitas arsitektur informasi pada repositori terbaik di dunia dan di Indonesia. Hasil analisis menunjukkan bahwa dari 10 menu yang paling banyak digunakan oleh repositori di Indonesia lebih cenderung menampilkan koleksi dokumen melalui menu document (collection) dengan nilai 154 sementara repositori di dunia lebih cenderung menampilkan berbagai macam pelayanan melalui menu service dengan nilai 242.
Keyword: arsitektur informasi, repositori institusi, sistem perangkingan, Webometrics

Judul: Information Architecture Comparison of the World’s and Indonesia’s Best College Library Websites Based on Webometrics
Abstrak: Situs web perpustakaan perguruan tinggi merupakan sarana peningkatan efisiensi pekerjaan dan kualitas pelayanan bagi penggunanya. Untuk itu perlu diperhatikan arsitektur informasi di dalamnya yang diantaranya meliputi sistem organisasi, sistem pelabelan dan sistem navigasi. Pemeringkatan pada Webometrics menjadi salah satu acuan baik atau tidaknya arsitektur informasi pada sebuah situs web institusi. Penelitian ini membandingkan arsitektur informasi pada sepuluh situs web perpustakaan perguruan tinggi terbaik di Indonesia dan sepuluh situs web perpustakaan perguruan tinggi terbaik dunia berdasarkan tingkat penelusuran dan posisi menu yang ada dalam situs tersebut. Hasil analisis menunjukkan kecenderungan menu dan informasi yang diberikan dari masing-masing situs web perpustakaan perguruan tinggi adalah terkait Services & Tools, Collections & Resources dan Guides. Situs web perpustakaan perguruan tinggi Indonesia juga cenderung lemah dalam menyajikan menu Research yang mendapat nilai 406 dibandingkan dengan dunia yang mendapat nilai 1340., The college library websites increase work efficiency and the quality of services for its users. Therefore, it is necessary to pay attention to its information architecture, including organizational systems, labeling systems and navigation systems. Webometrics’ ranking is one of the benchmarks for good or bad information architecture on an institutional website. This study compares the information architecture of the ten best university library websites in Indonesia and the ten best university library websites globally based on the search level and the position of the menus on these sites. The analysis results show the trend of the menu and the information provided from each college library website related to Services & Tools, Collections & Resources, and Guides. Indonesian university library websites also tend to be weak in presenting the Research menu, which scores 406 compared to the world with 1340.
Keyword: college library, information architecture, Webometrics

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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