Judul: Analisis Biaya Produksi Usaha Persuteraan Alam: Studi Kasus di Kabupaten Polewali Mandar Sulawesi Barat dan Kabupaten Enrekang Sulawesi Selatan
Abstrak: Sericulture is a part of social forestry programmes to improve the welfare of society, which live mainly around forest areas. In order to compete and overcome the obstacles that exist in Sericulture business today, production cost analysis should be done, as an important component in decision-making. The objective of this study is to determine production cost including break even point (BEP), and profitability rate. This study was conducted at Polewali Mandar Regency West Sulawesi and Enrekang Regency South Sulawesi in November untill December 2011. The results showed that: (a) the largest cost in Polewali Mandar Regency was at sericulture process that is 36,8% while in Regency Enrekang was at weaving process 53,8%; (b) production costs of cocoon in Enrekang Regency Rp 24.310/kg, the production cost of yarn Rp 393.940/kg, production cost of kain ikat Rp 197.340/sheet, and production cost of kain sarung Rp 303.440/sheet. While the cost of producing kain sarung in Polewali Mandar Regency Rp 143.940/sheet; (C) Break-even point of farmers group in Polewali Mandar Regency was 119 sheet of kain sarung in a year. Break even point of KUB Sinar Buntu Kurung was 2647,15 kg cocoons in a year. Break even point of UPT Tekstil was 481,5 kg silk yarn in a year. Break even point of Pertenunan Nenek Mallomo was 68 sheet of kain ikat in a year and 826 sheet of kain sarung in a year; (d) Profitability rate was obtained by Farmers Group Pallis is 25,1% from production costs, KUB Sinar Buntu Kurung was 43,9%, Pertenunan Nenek Mallomo was 26,7% for kain ikat, While UPT Tekstil suffer loss; (e) An integrated sericulture process in Polewali Mandar Regency have ROI point at 3,3%. Sericulture process in Regency Enrekang which done separately, reached ROI point at 15,7% on cocoons production stage. At fabric production, Pertenunan Nenek Mallomo have ROI point at 6,7%. While ROI point at spinning process in UPT Tekstil showed negative value.
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Judul: Studi Kelayakan Usaha Budidaya Ulat Sutera (Bombix mori L.) di Kecamatan Sukanagara, Kabupaten Cianjur, Provinsi Jawa Barat
Abstrak: Agro-industry activities of natural silk are intended to meet the demand for products made from silkworm thread and to increase the people's income. The demand for products made from silk threads both at home and abroad continues to increase from year to year. The world’s need for silk thread reaches 118,000 tons, while the domestic demand accounts for 700 tons. The world silk production decreased to 52,342 tons and Indonesia only produced 81.5 tons of silk yarn. This study aimed to determine the business feasibility based on non-financial aspects, financial aspects as well as determine its level of sensitivity. The study was conducted in Sukanagara District, Cianjur Regency from April 15 to May 15, 2010. The primary data were obtained through interviews with respondents and field observations. The secondary data were collected through interviews and traces of documents and other printed materials. The data were processed using Microsoft Excel 2007 software. The analysis was carried out for non-financial aspects (aspects of markets and marketing, technical and technological, management, human resource, social, judicial, and environment), and financial aspects (Net Present Value (NPV), Benefit-Cost Ratio Gross (gross B/C), Internal Rate of Return (IRR) and Pay Back Period (PBP)), as well as sensitivity analysis within the period of 10 years with the interest rate of 12%. Based on the resulted analysis of non-financial aspects, the silk worm farming is feasible. The financial analysis was based on three business scales of land area, namely business scale I (1 ha of mulberry), scale II (1.5 ha of mulberry), and scale III (2 ha of mulberry). Based on the business feasibility criteria, the silk worms farming businesses of scale I and II are feasible with NPV of Rp 8,688,681 and Rp 7,202,019; gross B/C of 1.17 and 1.08; IRR values of 33.99% and 20.55% and PBP of 2.75 years and 4.13 years respectively. Meanwhile the business scale III of silk worms is considered feasible if the development scenario is conducted by improving the farming of silk worm as many as 24 boxes/year with a NPV of Rp 12,649,681; gross B/C of 1.12; IRR of 26.06%, and PBP of 3.44 years. The cocoon price decrease of 10% is more influential (sensitive to) on the business condition rather than an increase of 10% in the operational cost. Silk worm businesses of scale I and III with the development scenarios remain feasible to operate despite a decline of 10% in cocoon price and an increased operating cost of 10%, whereas the silk worm business of scale II is not feasible to do.
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Judul: Perbandingan Algoritma Message Digest 5 (MD5) Dan Secure Hash Algorithm 1 (Shai) Untuk Autentikasi Pesan
Abstrak: Seiring dcngan meningkatnya penggunaan internet sebagai media pertukaran pcsan. metodc pcngamanan pcsan menjadi sangat penting. Nilai suatu pesan yang ingin dijaga keutuhan atnu intcgritasnya menycbabkan pesan tcrscbut hanya baleh dimodifikasi olch pihak yang bcrhak. Namun pada rcalitanya, pesan tersebut akan mendapat ancaman dari scorang penyusup. Bentuk ancaman terjadi apabiJa pcnyusup dcngan suatu cara. dapat mengubah isi pesan terscbut untuk bcrbagai kepcntingan. Apabila isi pesan telah bcrubah dad bentuk aslinya, maka pesan terscbut dikatakan sudah tidak aulcnlik (asli) Iagi. Snatn metodc yang efektif untuk mcnguji kcautentikan suatll pesan digllnakan tcknik kriptografi. Pada kal)'a ilmiah ini akan dibahas algoritma Message Digest 5 (MDS) dan Secure !-lash Algorithm (SHAI) untuk autentikasi pesan.
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