Judul: Kondisi kualitas udara kota Cilegon sebagai bahan pertimbangan pembangunan hutan kota
Abstrak: Kota Cilegon sebagai kota industri memiliki pabrik dan perusahaan yang berperan penting baik secara nasional maupun internasional. Proses produksi yang terjadi, kondisi transportasi dan permukiman di Kota Cilegon berpotensial akan menimbulkan dampak terhadap komponen lingkungan, khususnya penurunan kualitas udara. Kegiatan pemantauan kualitas udara dimaksudkan untuk mengetahui sejauh mana tingkat pencemaran udara yang telah berlangsung sehingga dapat diambil tindakan untuk mengantisipasi dampak negatif yang ditimbulkan dari pencemaran udara dan sebagai dasar untuk penetapan kebijakan pengendalian pencemaran udara. Informasi mengenai kualitas udara dapat digunakan untuk membangun hutan kota terutama di lokasi yang memiliki konsentrasi polutan di atas baku mutu udara dan atau hampir mendekati baku mutu udara yang berlaku.
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Judul: Penentuan Luasan Optimal Hutan Kota Berdasarkan Emisi Karbondioksida (CO2) di Kota Cilegon Provinsi Banten
Abstrak: Cilegon is one of the industrial cities that experience development are rapidly. Density of population activities such as transportation and industrial activity led to an increase in water and air pollution and temperature. This research was intented to know the optimal area of urban forest based on carbon dioxide emissions in the air that are generated by fuel oil, Liquid Petroleum Gas, coal, humans, cattle, and rice fields and also know the location of potentially managed as urban forest. methods of research conducted is the literature studies, interviews, preparation work, direct observation and ground check. Cilegon has eight locations of urban forest with a total area 26.11 ha. Carbon dioxide emissions are produced in Cilegon city amounted to 13240029 tons/year, necessitating the addition of city forest 227243.89 ha. The value of Carbon dioxide emissions in 2030 is 3924365870 ton, so land required is 67362298 ha. The potential for urban city is residential area, public cemetery, the beach, empty land industry with long term development plan, and road network.
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Judul: The Exploration of Discrete Logarithm over Finite Field GF(3m)
Abstrak: The security of many public~key algorithms is based on the problem of finding discrete logarithms. The generalized discrete logarithm problem is the following: given a finite cyclic group G of order n, a generator a of G, and an element fl E G, find the integer x, 0 ~ x ~ n - 1, such that 0: = fl. Algorithm for discrete logarithm problem focused on Menezes et al. (1997) that consist of exhaustive search algorithm, the baby-step giant-step algorithm, Pollard's rho algorithm, Pohlig-Hellman algorithm, and index-calculus algorithm. These algorithms are explorated to be used in discrete logarithm problem over finite field GF(3m ). The exploration also produces some algorithms, i.e. naif negative algorithm, baby-step mother-step algorithm, baby-step mother free-step algorithm, and baby-step free-step algorithm. All algorithms implemented using Maple 11. The Pohlig-Hellman and baby-step giant-step algorithms are efficient enough to be used in discrete logarithm problem over finite field GF(3m ) for m < 20.
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