Judul: Status Keberlanjutan Wilayah Peternakan Sapi Potong di Kabupaten Bondowoso untuk Pengembangan Kawasan Agropolitan
Abstrak: Bondowoso Regency is a potential area for development agropolitan based beef cattle farms. Before the development of a region-based beef cattle Agropolitan necessary to the determination of the status of the area of sustainability. This study aim to analyze the status of the sustainability index and the Bondowoso Regency area of the five dimensions of sustainability for development agropolitan. Determination of the status of sustainability analysis using Multidimensional Scaling (MDS) with Rapid Appraisal approach Agropolitan Beef Cattle (Rap-AGROSAPOT) and the results are expressed in terms of sustainability indexes and status. Sensitive attributes affect the sustainability index and the effect of the error is determined based on the analysis Leverage and Monte Carlo test. Determination of key sustainability factors obtained by prospective analysis. Sustainability analysis results showed that the ecological dimension (41.61%) and infrastructure-technology (47.05%) less sustainable status, the economic dimension (57.73%) and socio-cultural (58.05%) as well as the status of sustainable enough legal-institutional dimension (75.46%) good status . 70 attributes that were analyzed, 24 sensitive attributes need to be repaired because of an effect on increasing the sustainability index value. Results of a prospective analysis produced five key factors of sustainability areas, among others: availability of facilities and infrastructure agribusiness farm; livestock rearing systems; availability of agro-livestock market; availability of feed industry, and cooperative cattle. The key factors to be corrected in order to be developed into a viable regency agropolitan-based beef cattle farms.
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Judul: Potensi Pengembangan Sapi Potong di Kabupaten Sijunjung Propinsi Sumatera Barat
Abstrak: Agricultural land in Sijunjung District that has not been optimally utilized could be used for the development of beef cattle farm. The development should conform land suitability as a reference to determine beef cattle development to achieve the government's target of meat self-sufficiency in 2010. This study aims to foresee the potential of land in Sijunjung District for development of beef cattle using a combined 2006 Landsat images, LREP maps and other supporting data through, financial analysis, and the desired rearing cattle the local community. The results indicate that the potential lands for the development were about 120,063 ha or 38.35% of the existing land area, which consists of mixed garden (100,359 ha), 3,247 ha of abandoned land, 11,027 ha of paddy fields and 5,428 ha of bush. Actualy, land carrying capacity is 55,518 Animal Unit, and the potential carrying capacity is 134,722 Animal Unit. The results of the NPV analysis for all farming schemes were positive, with B/C Ratio> 1, and the IRR> outweighed the applicable interest rate. Assessment using AHP showed that the caging system was preferable (0.650) than shepherd-based farming (0.350) with a value of inconsistency about 0.05.
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Judul: Formulasi Algoritme Operasi Grup Jacobian Kurva Hyperelliptic ...
Abstrak: Dalam geometri aljabar, kurva hyperelliptic merupakan bentuk umum dari kurva elliptic. Kurva ini apabila dikenakan pada suatu lapangan berhingga akan membentuk suatu grup siklik. Pada kriptografi, khususnya enkripsi kunci publik, grup siklik yang dibangkitkan oleh kurva elliptic sudah banyak diteliti. Bahkan untuk kurva ini sudah memiliki standar oleh National Institute of Standard and Technology (NIST) Amerika. Sedangkan, untuk grup yang dibangkitkan oleh kurva hyperelliptic masih memiliki kekurangan dalam hal komputasinya. Tujuan dari penelitian ini adalah mengkonstruksi suatu lapangan berhingga pada , memilih kurva hyperelliptic atas lapangan hingga yang memenuhi kriteria keamanan untuk kriptografi, dan membuat formulasi operasi grup kurva hyperelliptic menggunakan algoritme Cantor. Dalam merekonstruksi lapangan hingga, terlebih dahulu tentukan dimensi dari lapangan hingga tersebut dan polinomial tak-teruraikan. Kemudian dipilih kurva hyperelliptic atas lapangan tersebut. Pada penelitian ini, kurva yang dipilih adalah = + + dengan lapangan hingga . Berdasarkan kurva yang dipilih, akan dibentuk suatu operasi grup dengan menggunakan algoritme Cantor, sehingga menjadi lebih aritmatik. Eksplorasi kurva hiperelliptic dilakukan untuk mengetahui keamanan dari kurva yang dipilih. Dengan menyusun algoritme operasi grup dari kurva yang dipilih, diperoleh perhitungan yang lebih aritmatik dan dapat diimplementasikan pada kriptografi kunci publik. Dari segi keamanan kurva telah memenuhi standar sehingga tahan terhadap serangan-serangan seperti Poligh-Hellman, Polard- , ataupun Frey-Ruck secara teorema.
Keyword: algoritme Cantor, kriptografi, kunci publik, kurva hyperelliptic, operasi grup