Judul: Rancangan Produksi Kopi Luwak secara Enzimatis.
Abstrak: Kopi menjadi salah satu komoditi yang paling banyak dikonsumsi di dunia. Salah satu jenis kopi termahal di dunia adalah kopi luwak. Hewan luwak sering digunakan sebagai media fermentasi biji kopi tetapi memerlukan biaya tinggi sehingga penggunaan mikroorganisme dalam fermentasi biji kopi mulai dikembangkan. Penelitian tersebut menjadi dasar dalam merancang produksi kopi luwak enzimatis. Tujuan penelitian ini adalah merancang produksi kopi luwak enzimatis, menentukan mesin dan peralatan produksi, serta menganalisis kelayakan finansial produksi kopi luwak enzimatis. Rancangan produksi kopi luwak enzimatis ini dianalisis dari tiga aspek yaitu neraca massa dan neraca energi, penentuan mesin dan peralatan produksi, dan analisis kelayakan finansial. Hasil rancangan ini mampu mengolah 6,838.78 kg buah kopi setiap bulannya menjadi 1,004.48 kg biji kopi dan membutuhkan energi sebanyak 7,356,962,685.33 kJ. Mesin dan peralatan produksi yang digunakan adalah pulper, rak fermentasi, mesin pencuci kopi, food dehydrator, huller, mesin pengayak biji kopi, grain moisture meter, dan peralatan penunjang lainnya. Analisis finansial menunjukkan produksi ini layak untuk dijalankan berdasarkan nilai NPV sebesar Rp 1,896,691,498.02, titik impas produksi sebesar 88,440.02 kg, titik impas penjualan sebesar Rp 48,642,013,657.71, IRR sebesar 27.72%, pengembalian modal dalam waktu 4.13 tahun, dan net B/C ratio sebesar 2.09.
Keyword: analisis finansial, kopi luwak enzimatis, rancangan produksi

Judul: Proses Produksi Kopi Luwak Arabika (Coffea Arabica L. ) Di Kebun Kalisat Jampit, Ptpn Xii Bondowoso, Jawa Timur
Abstrak: Kopi merupakan salah satu tanaman perkebunan yang telah menyumbang devisa US $ 1 036 671 bagi negara pada tahun 2011. Indonesia memiliki banyak jenis produk kopi, salah satunya kopi luwak. Integrasi yang baik mulai dari kegiatan hulu budidaya tanaman sampai pada kegiatan hilir pemasaran diperlukan untuk mengembangkan potensi produksi kopi luwak. Studi lapangan yang telah dilakukan penulis di Kebun Kalisat Jampit PTPN XII, Bondowoso selama empat bulan dimulai bulan April hingga Agustus 2015 dalam proses produksi kopi luwak menunjukkan bahwa luwak merupakan hewan nocturnal yang 79% beraktivitas di malam hari, rata-rata berat biji kopi yang dimakan luwak yaitu 673.5 g/ekor/hari, sedangkan waktu yang dibutuhkan luwak untuk pengeluaran feces rata-rata adalah 1-2 jam sejak pemberian pakan pertama. Jenis kelamin dan aktifitas luwak tidak mempengaruhi jumlah produksi kopi luwak. Hasil analisis data menggunakan uji t-student menunjukkan perbandingan rendemen kopi luwak dengan rendemen kopi konvensional tidak berbeda nyata pada taraf uji 5% .
Keyword: kopi luwak Arabika, nokturnal, rendemen kopi

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: