Judul: Penerapan Metode Long Period  Demultiple pada Data Seismik Multichannel 2D di Perairan Morowali, Sulawesi
Abstrak: Eskplorasi bawah laut berkaitan dengan penggambaran struktur bawah laut yang dapat dilakukan dengan metode Seismik. Metode seismik refleksi merupakan salah satu metode yang dianggap paling baik dalam struktur tersebut. Akuisisi data seismik di lapangan masih mengandung banyak noise, yaitu data yang tidak diharapkan dan bersumber dari instrumen, proses perambatan gelombang maupun dari lingkungan yang dapat mengganggu hasil penampang seismik menjadi tidak jelas. Dalam pengolahan data seismik terdapat beberapa metode untuk mendeteksi dan mengatenuasi multiple jenis long-period multiple. Beberapa metode tersebut diantaranya adalah metode F-K Filter dan metode Surface Related Multiple Elimination (SRME). Penelitian ini bertujuan mengevaluasi penggunaan metode F K Filter dan Surface Related Multiple Elimination (SRME) dalam mendeteksi dan mengatenuasi noise jenis long-period multiple pada data seismik multichannel 2D di Perairan Morowali, Sulawesi. Metode F-K Filter bisa mengatenuasi noise yang terekam, termasuk multiple dan menyebabkan sinyal penampang seismik terlihat lebih jelas. Perlu diterapkan metode SRME untuk mengatenuasi multiple jenis long period multiple. Metode SRME berhasil mengatenuasi multiple jenis long-period multiple yang terdapat pada zona near offset dan juga berhasil mempertahankan sebagian besar reflektor utama., Underwater exploration is closely related to the depiction of underwater structures can be carried out using the seismic method. The seismic reflection method is one of the methods that is considered to be the best in delineating under water structures. Field seismic data acquisition contains a lot of noise, namely unexpected data originating from instruments, wave propagation or from environment that can lead results of the seismic cross-section being unclear. In seismic data processing, there are several methods to detect and attenuate multiple types of long-period multiples. Some of these methods include the F-K Filter and the Surface Related Multiple Elimination (SRME) methods. This study aims to evaluate the F-K Filter and Surface Related Multiple Elimination (SRME) methods in detecting and attenuating long-period multiple noise in 2D multichannel seismic data from Morowali Waters, Sulawesi. The F-K Filter method can attenuate the recorded noise, including multiples and cause the seismic cross-sectional signal to be seen more clearly. The SRME method succeeded in attenuating multiple types of long-period multiples in the near offset zone and also managed to maintain most of the primary reflectors.
Keyword: F-K Filter, Long-period multiple, multiple, Surface Related Multiple Elimination.

Judul: Penerapan Metode Swface Related Multiple Elimination (SRME) untuk Mereduksi Pantulan Multipel pada Data Seismik Laut
Abstrak: Seismic technology is a method of acquiring data on the structure of the earth's subsurface using acoustic principles. Results of the recording not only of primary signal, but also a noise that will affect the interpretation. Multiple reflection is one of the existing noise in the seismic data. In this study using data obtained from the Center for Research and Development of Marine Geology (PPPGL) Bandung. The method used by a Surface Related Multiple Elimination (SRME) have assumes that the data contains multiple related to surface than made a file multiple prediction and then subtraction the multiple. Results with and without SRME processing shows the differences in seismic display. Data before SRME seen that the data still has multiple. After using SRME the multiple was reduced. Multiple still exist in the data path including multiple long path multiple. Based on these results that the SRME is an effective method to reduce the presence of multiple
Keyword: Reflection, SRME, Seismic, Multiple

Judul: Trichomonas Gallinae Penyebab Trichomonosis Pada Unggas
Abstrak: Trichomonas gallinae adalah protozoa yang bergerak aktof dengan keempat flagella yang mempunyai layar dan pada salah satu sisinya terdapat membran seperti sirip ikan yang berombak. Spesies dari genus Trichomonas ini mempunyai arti penting pada unggas, karena dapat menyebabkan infeksi pada alat pencernaan bagian atas.
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