Judul: Studi karakteristik Wilayah Jelajah Owa Jawa (Hylobates moloch Audebert, 1798) di Taman Nasional Gunung Halimun (studi Kasus di Resort Cikaniki)
Abstrak: Salah satu anggota famili Hylobatidae yang terdapat di Indonesia dan merupakan primata endemik Pulau Jawa adalah owa jawa (Hylobates moloch Audebert, 1798). H. moloch telah ditetapkan sebagai salah satu satwa yang dilindungi sejak tahun 1924 bersamaan dengan diberlakukannya peraturan perburuan (Kappeler, 1984). Pada tahun 1931, famili Hylobatidae yang hidup di Indonesia dilindungi berdasarkan Ordonansi Perlindungan Binatang-binatang Liar 193 1 (Martodiardjo, 1975 dalam Kappeler, 1984). H. moloch terdapat dalam Red Data Book The International Union for The Conservation of Natural Resources (IUCN) dengan kategori endnngered species atau spesies genting. Selain itu, H. moloch dicantumkan dalam Appendix I yang diterbitkan oleh 1Yze Convention on International Trade for Endangered Species of Flora and Fauna (CITES). Pembukaan kawasan hutan oleh manusia yang semakin meningkat akan mempersempit habitat dm mengwangi populasi H. moloch. Untuk mengakomodasikan keperluan manusia dan pelestarian H. moloch, diperlukan suatu tata guna lahan yang dapat memenuhi kebutuhan manusia tetapi tidak merusak dan mengurangi habitat H. moloch. Bagian dari dasar tata guna lahan tersebut adalah pengetahuan tentang karakteristik habitat H moloch. Salah satu cara untuk mengetahui karakteristik habitat H. moloch adalah dengan mempelajari karakteristik wilayah jelajah H. moloch. Tujuan penelitian adalah untuk t mempelajari karakteristik wilayah jelajah dan ekologi H. moloch di Taman Nasional Gunung Halimun. Penelitian dilaksanakan di wilayah Cikaniki, Taman Nasional Gunung Malimun (TNGH) mulai dari bulan Agustus sampai pertengahan bulan Oktober 2001 dan di Labordorium Spatial Database Analysis and Focilities (SDAF) Jurusan Konservasi Sumberdaya Hutan, Fakultas Kehutanan, Institut Pertanian Bogor mulai dari pertengahan bulan Januari sampai pertengahan bulan Maret 2002.
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Judul: Studi Lokomotor dan Postur Per Aktivitas Owa Jawa (Hylobates moloch Audebert, 1798) di Taman Nasional Gunung Halimun Salak.
Abstrak: Gunung Halimun Salak National Park is the largest mountainous tropical rainforest remaining in Java island and it is an important habitat for the preservation of javan gibbon (Hylobates moloch Audebert 1798), an endemic primate in Java island. A study of posture and locomotion of javan gibbon is needed considering within their daily activities, javan gibbon using different spatial habitat structure and therefor the information is important as reference to make a better decision in conserving habitat and population of javan gibbon based on aspect of behavioral and ecology. This study was conducted in an area of Cikaniki – Citalahab, Gunung Botol resort for one month (June – July 2012). Equipments used in the study were range finder, binoculars, phi bands, compass, camera, stationery and stopwatch as a tools. Data were collected from two groups of well-habituated javan gibbon, named group A and B, by using scan and focal animal sampling in order to get collected behavioral data. Profile diagram of the habitat was also developed. To determine home range, convex polygon and fixed kernel 95% were applied. The mean active period of javan gibbon was 9 hours at 07.35 am – 4.50 pm and dominated by resting activity for 48.18%. The dominant locomotor type during their active period was brachiation with frequency and duration of 46,07 – 79,33% and 11,52 – 15,26 hours. Meanwhile the percentage of sitting posture type with frequency and duration was 72,78% - 84,12% and 11,12 – 19,04 hours. There was 24 species of trees used as locomotion mediums and 16 trees for postures. The most dominant species was puspa (Schima wallichii) with most dominant family was from family Fagaceae. The percentage of crown covers for the two groups was 62.2%. Alleged average daily range during the observation time of 641.96 m group A while group B of 1278.18 m. Calculations with FK 95% giving an average cruising area of 50.27 ha, while the 100% MCP method gives an average cruising area of 24.38 ha. Analysis of the Digital Elevation Model (DEM), wide ranges of the study group had a mean - average of 25.65 ha for the analysis of the MCP and 53.25 ha for FK analysis results with 95%. Result of posture and locomotor study could be used as consideration to design of ex situ conservation area of javan gibbon beyond, that includes also habitat enrichment. Map of the daily movements and home ranges of Javan gibbon can be used as supporting data for the object ecotourism attractions of special interest, education and research. Also, it can be a reference park managers in monitoring the presence of a controlling Javan gibbon habitat
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Judul: Sulfonated Polystyrene-Nafion Composite Gel Polymer Electrolyte for Dye Sensitized Solar Cells Application with Synthetic Dyes
Abstrak: Dye Sensitized Solar Cell (DSSC) merupakan sel surya generasi ketiga dengan kelebihan mudah difabrikasi, biaya produksinya rendah, ramah lingkungan, serta menghasilkan efisiensi konversi daya yang cukup baik. Sistem DSSC tersusun atas elektrode kerja, zat warna, elektrolit, dan elektrode lawan. Elektrolit yang umum digunakan dalam aplikasi DSSC adalah elektrolit cair yang mengandung iodida/triiodida (I-/I3-). Elektrolit cair memiliki kelemahan mudah menguap, sehingga mengakibatkan kinerja DSSC menjadi menurun. Penelitian ini bertujuan memodifikasi elektrolit cair menjadi gel polimer elektrolit komposit polistirena tersulfonasi-nafion serta membandingkan nilai efisiensi dari penggunaan zat warna merah dan kuning sebagai zat pemeka DSSC. Komposit polistirena tersulfonasi-nafion dibuat dengan lima variasi komposisi 0,00:1,00; 0,25:0,75; 0,50:0.50; 0,75;0,25; 1,00: 0,00. Hasil pengukuran menunjukkan komposisi optimum komposit polistirena tersulfonasi-nafion adalah 0,50:0,50 dengan nilai efisiensi 1,50% untuk zat warna merah dan 1,35% untuk zat warna kuning., Dye Sensitized Solar Cell (DSSC) is a third generation solar cell with the advantages of being fabricated, low production costs, environmentally friendly, and producing a fairly good power conversion efficiency. The DSSC system consists of a working electrode, dyes, electrolyte, and counter electrode. The electrolyte commonly used in DSSC applications is liquid electrolyte containing iodide/triiodide (I-/I3-). The electrolyte has the weakness of being volatile, which causes the performance of the DSSC to decrease. This study aims to modify the liquid electrolyte into a gel polymer electrolyte composite PSS-nafion and compare the efficiency values of red and yellow dyes as DSSC sensitizers. Sulfonated polystirene-nafion composite was made with five composition variations 0,00:1,00; 0,25:0,75; 0,50:0,50; 0,75;0,25; 1,00: 0,00. The measurement results show that the optimal composite composition of PSS-nafion is 0,50:0,50 with an efficiency value of 1,50% for red dyes and 1,35% for yellow dyes.
Keyword: dye sensitized solar cell, dyes, gel polymer electrolyte, nafion, sulfonated solystirene