Judul: Pembangunan Usability Guidelines pada Website Perpustakaan Akademik di Indonesia
Abstrak: Inovasi untuk meningkatkan minat mahasiswa untuk membaca adalah dengan adanya situs web perpustakaan akademik. Terobosan tersebut belum tentu memberikan kenyamanan pada penggunanya. Untuk meningkatkan kenyamanan pengguna dalam mengakses situs web perpustakaan akademik perlu diperhatikannya faktor usability. Untuk itu, penelitian ini akan menganalisis usability pada Website Perpustakaan Akademik untuk pembangunan suatu guidelines sehingga dapat digunakan dalam pembangunan website perpustakaan akademik di Indonesia. Terdapat 3 Kategori guidelines yang paling banyak dipenuhi oleh website perpustakaan akademik yaitu kategori Library Resource dengan 67%, serta Library Collection dan Website Aid and Tools dengan 66%. Terdapat 2 kategori yang tidak banyak dimiliki oleh website perpustakaan akademik di Indonesia yaitu Value Added Service serta Information on Different Library Collection dengan persentase kurang dari 20%. Oleh karena itu, website perpustakaan akademik di Indonesia berada pada klasifikasi sedang dengan pemenuhan guidelines antara 20.8-52.4%.
Keyword: akademik, guidelines, perpustakaan, usability

Judul: Pembangunan Search Usability Guidelines untuk Situs Web Perpustakaan Nasional di Asia
Abstrak: Fitur pencarian merupakan salah satu elemen penting dari sebuah situs web agar pengguna dapat mencari informasi yang diinginkan. Situs web Perpustakaan memiliki banyak koleksi pustaka, tentunya memerlukan fitur pencarian yang tepat, namun tidak semua situs web perpustakaan sudah memiliki fitur pencarian yang tepat. Untuk itu, penelitian ini akan membangun search usability guidelines untuk situs web perpustakaan nasional sehingga dapat digunakan dalam menganalisis fitur pencarian dalam situs web perpustakaan nasional di Asia. Dalam penelitian ini dilakukan studi literatur terhadap 20 artikel ilmiah terkait dan diuji oleh expert judgment sehingga menghasilkan 50 guidelines yang diujikan pada situs web perpustakaan nasional di Asia. Hasil evaluasi pengujian situs web perpustakaan nasional di Asia menghasilkan tiga klasifikasi negara yang terbagi dalam klasifikasi tinggi yang memiliki nilai sebanyak 26%, sedang sebanyak 57% dan rendah sebanyak 17%. Sebanyak 20% guidelines memperoleh nilai sempurna.
Keyword: fitur pencarian, guidelines, search usability, perpustakaan nasional

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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