Judul: Pengembangan Pasar Produk Pellet Hijauan Indigofera Zollingeriana
Abstrak: Penelitian ini bertujuan untuk mengidentifikasi permasalahan konsumen,, menemukan segmen pelanggan, dan menawarkan solusi untuk permasalahan konsumen untuk produk pellet hijauan Indigofera zollingeriana. Metode yang digunakan menggunakan pendekatan kualitatif dengan metode riset aksi dengan tahapan pengembangan pasar yang terdiri atas perancangan hipotesis model bisnis, pengujian masalah sebanyak 20 responden, pengujian solusi, dan verifikasi. Adapun permasalahan utama, diantaranya: harga pakan konsentrat yang cenderung mahal, peningkatan ADG (Average Daily gain)/ penambahan bobot per hari nya yang tidak sesuai harapan, dan pakan yang kurang praktis. Produk pakan pellet hijauan Indigofera zollingeriana menawarkan solusi tersebut. Hasil pengujian solusi menunjukkan produk pakan pellet hijauan Indigofera zollingeriana sesuai dengan pelanggan dan harga penjualan yang diminati, yakni Rp 4 600/kg.
Keyword: pakan, hijauan Indigofera zollingeriana, pengembangan pasar, riset aksi, model bisnis

Judul: Pengaruh Perbedaan Jarak Tanam Terhadap Pertumbuhan, Produksi dan Kualitas Indigofera zollingeriana.
Abstrak: Indigofera zollingeriana adalah legum yang tinggi kandungan protein serta menghasilkan produksi yang stabil dalam berbagai macam kondisi cuaca. Tujuan penelitian ini adalah untuk mengetahui efek dari perbedaan jarak tanam terhadap laju pertumbuhan, produksi hijauan dan kualitas. Penelitian ini menggunakan Rancangan Acak Kelompok dengan empat perlakuan. Setiap perlakuan jarak tanam sebagai berikut: 1m×1.5m; 1m×1m; 1m×0.75m; 1m×0.5m sehingga memiliki kepadatan tanaman yang berbeda, yaitu 12, 15, 20, 30 plot-1. Data dianalisis menggunakan analisis ragam. Perbedaan yang signifikan diantara perlakuan di uji lanjut menggunakan uji Duncan dan Polinomial Orthogonal. Hasil menunjukkan peningkatan tinggi tanaman pada jarak tanam 1m×0.5m. Peningkatan terjadi sejalan dengan kepadatan tanaman hingga 30 tanaman. Peningkatan populasi tanaman tidak berpengaruh nyata terhadap tinggi tanaman, jumlah cabang dan daun. Peningkatan populasi tanaman hingga 30 tanaman meningkatkan kan pula produksi hijauan sampai 10 888 gram dan bahan kering sampai 32.74%. Peningkatan populasi tidak berpengaruh nyata terhadap kandungan NDF, ADF, PK dan β-caroten.
Keyword: Indigofera zollingeriana, jarak tanam, kualitas, pertumbuhan, produksi hijauan

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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