Judul: Penerapan Metode Surface Consistent Deconvolution pada Data  Seismik Laut 2D di Perairan Waipoga
Abstrak: Eksplorasi sumberdaya energi dan mineral yang ada di laut dapat dilakukan dengan menggunakan seismik refleksi. Data seismik yang dihasilkan saat akuisisi data mengandung wavelet yang kompleks dan noise seperti multiple yang mengakibatkan menurunnya resolusi temporal penampang seismik. Oleh karena itu, penelitian ini bertujuan untuk membandingkan penerapan metode Surface Consistent Deconvolution dan dekonvolusi prediktif dalam meningkatkan resolusi temporal penampang seismik 2D di Perairan Waipoga. Penampang seismik yang dihasilkan pada penelitian ini menunjukkan bahwa penerapan metode Surface Consistent Deconvolution memberikan hasil yang lebih baik dalam meningkatkan resolusi temporal penampang seismik dibandingkan metode dekonvolusi prediktif. Hal tersebut dikarenakan metode Surface Consistent Deconvolution memberikan hasil yang lebih baik dalam memampatkan wavelet, meningkatkan kontinuitas lapisan dan mempertajam reflektor.
Keyword: Deconvolution, Predictive Deconvolution, Surface Consistent  Deconvolution, Temporal Resolution

Judul: Analisis Perbandingan Metode Surface Related Multiple Elemination dan Transformasi Radon dalam Atenuasi Multiple pada Data Seismik 2D Perairan Dangkal di Cekungan Waipoga, Papua
Abstrak: Metode seismik umum digunakan dalam kegiatan eksplorasi hidrokarbon dengan memanfaatkan penjalaran gelombang suara. Data 2D seismik laut yang digunakan pada penelitian ini merupakan data mentah hasil akuisisi seismik laut di perairan dangkal Cekungan Waipoga, Papua. Data mentah hasil akuisisi mengandung multiple yang disebabkan oleh perbedaan nilai impedansi akustik yang besar pada batas lapisan, sehingga gelombang seismik yang dipancarkan terperangkap dalam lapisan air atau lapisan batuan dasar perairan. Multiple membuat gambaran penampang seismik menjadi tidak fokus pada sinyal primer. Oleh karena itu, diperlukan metode atenuasi multiple yang tepat sehingga dapat dihasilkan gambaran penampang yang lebih jelas. Penelitian ini menggunakan metode Surface Related Multiple Elimination (SRME) dan transformasi Radon sebagai metode atenuasi multiple pada data seismik yang diproses hingga hasil akhir Pre-Stack Time Migration (PSTM). Berdasarkan dari pengolahan yang telah dilakukan didapatkan hasil bahwa metode atenuasi multiple dengan metode SRME lebih efektif mereduksi multiple terutama pada near offset sedangkan metode transformasi Radon lebih baik dalam mengurangi multiple pada far offset.
Keyword: data seismik, far offset, multiple, near offset, SRME, transformasi Radon

Judul: Biological Characteristics of Jatropha curcas Trimonoecious
Abstrak: Physic nut (Jatropha curcas L.) is an original plant from tropical America belonging to the family of Euphorbiaceae and an annual plant of monoecious. Commonly J.curcas have male and female flowers on the same plant. There are currently some J. curcas which have hermaphrodite flowers from monoecious plants, but very rarely. J. curcas with hermaphrodite flowers are classified as andromonoecious type (having hermaphrodite and male in the same plant) and trimonoecious type (having male, female, and hermaphrodite flowers in the plant). Trimonoecious plants with hermaphrodite flowers were tend to perform self-pollination (geitonogamy) and produce a homogenous and high-productivity in next generation. J. curcas plants is difficult in differentiating between monoecious and trimonoecious plants when it seedling, and this is a limiting factor to know development of trimonoecious J. curcas. Trimonoecious J.curcas can be identified after six months of planting, and when it have started flowering. Therefore, the trimonoecious J. curcas biological characteristics needs to be an observation. The trimonoecious trait in J. curcas plants can be identified through several analyses, i.e. the analysis of agronomical characteristics, the chromosomes analysis, the isozyme analysis, and the analysis of pollen viability. The study was conducted in December 2011 - February 2013. The experiments were conducted using the Randomized Complete Block Design for one factor, the J. curcas genotype with 5 replicates. Each unit of the experiment consisted of 5 plants. Aagronomics characteristic analyses were conducted using analysis of variance (ANOVA) followed by the Duncan Multiple Range Test (DMRT) at 5% level. The classification of heritability and Genetic Variation Coefficient (GVC) criteria and relative Phenotypic Variation Coefficient (PVC). The analysis of genetic distance clustering was done using the Minitab 1.5 program clustering method. J. curcas stem trimonoecious characters is the primary branches angle, stem diameter, number of primary and secondary branches have a higher size than monoecious plants. Diameter and thickness fruit flesh origins from monoecious plants larger than fruit from plants trimonoecious. Characteristics of the trimonoecious plants in this study were almost the same with their mother plant. Number chromosomes number of J. curcas plant genotypes have 2n = 22 chromosomes The average length of the trimonoecious plant’s chromosome was longer than the average for monoecious plants. The length of chromosomes can differ among one family, even though the numbers of the chromosomes are similar. Isozymes peroxidase (Rf 0.83) and esterase (Rf 0.20) could be used as markers to differentiate between trimonoecious and monoecious plants. Male flower pollen viability of plant origin trimonoecious have a slower rate of decrease than male flowers monoecious plants. The dendrogram from the cluster analysis results could differentiate between trimonoecious and monoecious plants with a variation coefficient of 27.25.
Keyword: Esterase, peroxidase, pollen viability, trimonoecious