Judul: Otomatisasi penulisan daftar pustaka sesuai PPKI IPB menggunakan citation style language
Abstrak: Adanya oknum tengkulak mengakibatkan harga hasil panen petani menjadi lebih rendah dibanding harga pasar. Aplikasi Belibun dirancang untuk menjual hasil panennya kepada konsumen tanpa perantara tengkulak. Dalam membangun aplikasi Belibun, aspek pengalaman pengguna diperhatikan agar petani dan konsumen dapat menggunakan aplikasi dengan mudah. Metode yang digunakan dalam membangun pengalaman pengguna aplikasi Belibun adalah lean UX dengan 2 kali pengulangan. Hasil uji pengguna dievaluasi menggunakan teknik cognitive walkthrough. Pada tahap uji pengguna iterasi pertama dilakukan kepada 2 orang yang berprofesi sebagai petani dan diperoleh tingkat keberhasilan prototipe aplikasi Belibun sebesar 63%. Pada tahap uji pengguna iterasi kedua dilakukan kepada 5 orang pengguna dan diperoleh tingkat keberhasilan prototipe aplikasi Belibun sebesar 75%.
Keyword: Belibun, farmer, mobile application, user experience

Judul: Peningkatan Kualitas User Experience Aplikasi Digitani bagi Petani dengan Metode Five Planes
Abstrak: Pada era digital, petani bisa memanfaatkan berbagai teknologi untuk menambah wawasan untuk mengolah berbagai sumber daya dan mengatasi masalah yang menghambat kemajuan pertanian di Indonesia. IPB University menghadirkan sebuah aplikasi Digital Tani (Digitani) dengan tujuan untuk memfasilitasi pertukaran informasi tentang pertanian antara petani, penyuluh pertanian, dan akademisi IPB. Digitani dapat diakses melalui mobile maupun web. Dalam rangka peningkatan user experience, dibutuhkan penelitian mengenai eksplorasi fitur pada Digitani, lalu mengetahui kebutuhan petani yang dapat diterapkan pada aplikasi Digitani. Penelitian yang dilakukan menggunakan metode Five Planes. Hasil penelitian ini menghasilkan user persona, 10 spesifikasi fungsional, low-fidelity prototype, dan high-fidelity prototype. Evaluasi dilakukan kepada 5 responden dengan metode Retrospective Think Aloud. Evaluasi menunjukan error rate tertinggi pada task membaca dan menyimpan artikel sebesar 60% serta terdapat 7 task yang pengerjaanya melewati batas waktu. Evaluasi akan menjadi rekomendasi untuk perbaikan pada pengembangan aplikasi Digitani selanjutnya. Responden merasa prototipe yang dibuat sudah memenuhi kebutuhan petani dalam pertanian., In the digital era, farmers can utilize various technologies to broaden their insights in managing diverse resources and addressing challenges that hinder agricultural progress in Indonesia. IPB University introduces a Digital Farming application (Digitani) with the aim of facilitating the exchange of agricultural information among farmers, agricultural extension officers, and IPB academics. Digitani can be accessed through mobile devices as well as the web. To enhance user experience, research is conducted to explore the features of Digitani and identify farmer's needs that can be integrated into the application. The research employs the Five Planes method, resulting in a user persona, 10 functional specifications, a low-fidelity prototype, and a high-fidelity prototype. Evaluation is conducted with 5 respondents using the Retrospective Think Aloud method. The evaluation indicates the highest error rate in the task of reading and saving articles at 60%, along with 7 tasks exceeding the time limit. The evaluation will serve as recommendations for improvements in the subsequent development of the Digitani application. Respondents feel that the created prototype adequately fulfills farmer's needs in agriculture.
Keyword: farmer, five planes, retrospective think aloud

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.
Keyword: