Judul: Perancangan Interaksi Manusia - Tanaman sebagai Edukasi Perawatan Tanaman
Abstrak: Merawat tanaman sudah menjadi hobi umum bagi kebanyakan orang. Namun, bukan berarti hal tersebut mudah dilakukan. Kebanyakan orang masih merasa kesulitan untuk memenuhi kebutuhan tanamannya dikarenakan sulitnya manusia berinteraksi dengan tanaman karena kurangnya kemampuan tanaman untuk memberitahukan kebutuhannya. Penelitian untuk memudahkan interaksi manusia dengan tanaman sudah dilakukan sebelumnya, dengan memberikan emoticon pada tanaman untuk dapat mengekspresikan dirinya. Penelitian ini akan merancang interaksi manusia dengan tanaman yang dapat memudahkan dan juga mengedukasi dalam merawat tanaman. Penelitian ini menggunakan metode Double Diamond yang terdiri dari empat tahap. Pada tahap discover diperoleh adanya kesulitan dalam memahami kebutuhan tanaman. Pada tahap define didapatkan permasalahan utama yang akan diselesaikan dengan menggunakan affinity diagram. Pada tahap develop dilakukan brainstorming untuk mendapatkan solusi dari permasalahan tersebut. Diakhiri dengan tahap deliver untuk untuk menjelaskan ide solusi tersebut. Penelitian menghasilkan solusi berupa Emoji Interaction, yaitu tanaman dapat berinteraksi dengan manusia melalui bantuan emoji untuk dapat mengekspresikan kebutuhan mereka.
Keyword: double diamond, human-plant interaction, emoji interaction

Judul: Perancangan User Experience Aplikasi Digitani untuk Penyuluh Pertanian Menggunakan Metode Five Planes
Abstrak: Pembangunan pertanian membutuhkan kompetensi dari pengguna teknologi. Pihak yang masih kurang terhadap akses sumber informasi yaitu petani sehingga diperlukan dukungan sumber daya penyuluh pertanian. Institut Pertanian Bogor sebagai lembaga pendidikan di bidang pertanian mengembangkan aplikasi Digitani yang membantu dalam penyebaran informasi. Namun, belum sepenuhnya melibatkan penyuluh pertanian. Perancangan aplikasi menggunakan metode Five Planes. Penelitian ini bertujuan untuk meningkatkan user experience aplikasi Digitani berdasarkan kebutuhan penyuluh pertanian menggunakan Retrospective Think Aloud. Evaluasi dilakukan kepada lima responden dengan melakukan pengujian pada 17 task. Hasil evaluasi menunjukkan error rate yang paling tinggi terdapat pada task menyimpan dan membuka artikel yang disimpan sebesar 67% serta terdapat 6 task mobile dan 3 task website yang pengerjaannya melebihi batas waktu yang ditentukan. Secara keseluruhan responden berpendapat bahwa fitur yang diujikan sudah mencakup kebutuhan penyuluh pertanian., Agricultural development requires competence from technology users. Farmers, who still lack access to information sources, require the support of agricultural extension resources. Bogor Agricultural University, as an educational institution in agriculture, developed the Digitani application to help disseminate information. However, agricultural extension workers have not been fully involved in the application's design. The design of the application incorporates the Five Planes method. This research aims to improve the user experience of the Digitani application based on the needs of agricultural extension workers using Retrospective Think Aloud. The evaluation was conducted on five respondents by testing 17 tasks. The evaluation results show that the task of saving and opening stored articles has the highest error rate at 67%, and there are 6 mobile tasks and 3 website tasks that exceed the specified time limit. Overall, respondents believed that the tested features adequately addressed the needs of agricultural extension workers.
Keyword: agricultural extension, 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.
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