Judul: Analisis Nilai Tambah dan Profitabilitas Usaha Olahan Ubi Cilembu pada Usaha Ma Utik di Desa Cilembu Kabupaten Sumedang
Abstrak: Usaha pengolahan ubi cilembu di Kabupaten Sumedang merupakan usaha yang mulai berkembang di Kabupaten Sumedang. Usaha olahan ubi cilembu Ma Utik adalah salah satu produsen pengolahan ubi cilembu di Desa Cilembu, Kecamatan Pamulihan, Kabupaten Sumedang. Usaha olahan Ma Utik mulai memproduksi dan menjual olahan ubi cilembu seperti keripik balado dan dodol sejak tahun 2010. Pengolahan ubi cilembu yang dilakukan oleh usaha Ma Utik merupakan salah satu cara untuk dapat mengantisipasi lonjakan produksi yang tidak lolos sortir dalam proses pemasaran, sekaligus memberikan nilai tambah, dan dapat meningkatkan harga jual ubi cilembu. Adanya proses pengolahan ubi cilembu menjadi olahan makanan ringan tentunya akan meningkatkan nilai tambah pada komoditas ubi cilembu. Penelitian ini bertujuan untuk menganalisis besarnya profitabilitas dan membandingkan nilai tambah yang diperoleh dari pengolahan ubi cilembu menjadi keripik balado dan dodol. Analisis nilai tambah menggunakan metode Hayami, sedangkan analisis profitabilitas usaha menggunakan perhitungan titik impas, Marginal Income Ratio (MIR) dan Marginal of Safety (MOS). Hasil perhitungan menunjukkan bahwa usaha olahan ubi cilembu Ma Utik mampu menghasilkan laba, hal tersebut dilihat dari total penjualan masing - masing produk berada diatas titik impas. Tingkat profitabilitas pada produk olahan keripik balado lebih tinggi dibandingkan dengan olahan dodol yaitu sebesar 53.72 persen. Analisis nilai tambah menunjukkan bahwa produk olahan keripik balado memiliki nilai tambah yang paling tinggi sebesar Rp14 396 per kilogram dengan kapasitas produksi 52.50 kemasan per hari.
Keyword: nilai tambah, profitabilitas, ubi cilembu

Judul: Added Value and Profitability of Cassava Processing Business (Case Study: Pak Bendot's Cassava Processing Business, Pekanbaru City)
Abstrak: Cassava is an agricultural product that can be processed into various foods. Cassava in Indonesia is available almost all year round and the price is cheap. This has caused many entrepreneurs, especially Micro and Small Enterprises (UMK) interested to open a food business with cassava as raw material. Pak Bendot's Cassava Processing Business is an example of a micro small business in Pekanbaru, Riau, which processes fresh cassava into dodol and balado chips. This business will be developed by the local government into icon of Pekanbaru. Therefore, this study aims to analyze the added value and profitability of the cassava processing business with Pak Bendot's Cassava Processing Business as the case. Hayami Method showed that the added value ratio of cassava processed into balado chips was higher than the dodol. Profitability analysis using break even point, MOS, and MIR shows that this business is profitable. This business operates above the break-even point with the profitability of processing dodol 42.86% and balado chips 68.12%. This business is sensitive to the increase in the price of its main costs. The increase of business until 100% shows that this business is still profitable., Ubi kayu merupakan produk pertanian yang dapat diolah menjadi aneka makanan. Ubi kayu di Indonesia tersedia hampir sepanjang tahun dan harganya relatif murah. Hal tersebut menyebabkan banyak pengusaha makanan, khususnya Usaha Mikro dan Kecil (UMK) tertarik untuk membuka usaha makanan dengan bahan baku ubi kayu. Usaha Olahan Ubi Kayu Pak Bendot merupakan contoh usaha mikro di Kota Pekanbaru, Provinsi Riau, yang mengolah ubi kayu segar menjadi dodol dan keripik balado. Produk usaha ini akan dikembangkan oleh pemerintah daerah menjadi ikon Kota Pekanbaru. Oleh karena itu, penelitian ini bertujuan menganalisis nilai tambah dan profitabilitas usaha pengolahan ubi kayu dengan Usaha Olahan Ubi Kayu Pak Bendot sebagai kasus. Perhitungan menggunakan Metode Hayami menunjukkan bahwa rasio nilai tambah ubi kayu yang diolah menjadi keripik balado lebih besar dibandingkan yang diolah menjadi dodol. Analisis profitabilitas menggunakan indikator break even point, MOS, dan MIR menunjukkan bahwa usaha ini menguntungkan. Usaha ini beroperasi di atas titik impas dengan profitabilitas pengolahan dodol sebesar 42,86% dan keripik balado 68,12%. Usaha ini sensitif terhadap kenaikan harga ubi kayu, bahan penolong, dan upah tenaga kerja. Pengembangan kapasitas produksi sebesar 100% menunjukkan bahwa usaha ini masih menguntungkan.
Keyword: cassava processing business, profitability, sensitivity, value added

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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