Judul: Pengelolaan Rusa Sambar (Cervus unicolor equinus Kerr, 1972) di Taman Margasatwa Ragunan, Jakarta Selatan
Abstrak: Distribution of Sambar deer in Indonesia, Sambar deer spreads in Kalimantan island and Sumatera island. Their home land has been disturbed and threatened because of land degradation and wild hunt so they need to be consevationed. The goal of this research is to know the management technique of sambar deer. This research is taken in Taman Margasatwa Ragunan (TMR) on March untill April in 2013. The research method takes three steps, field observation, literature study and interviewer. Data analysis of descriptive and quantitative. From the results of the study revealed that population of rusa sambar in 2013 10 for sub-types (Cervus unicolor equinus). Sex ratio 1:2 show that it has low productivity. Cage model is ranch in 3744 m². Feeding is divided into two groups: basic feed (forage) and supplementary feed (bran, pellets, salt and mineral). Physical health condition is not good as skinny and there are injuries. The trainer there were 3 people. The advantage is recreation, education, research and conservation land for the rare animal.
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Judul: Studi pakan dan perilaku makan rusa sambar (Cervus unicolor Kerr, 1972) di Resort Teluk Pulai, Taman Nasional Tanjung Puting, Kalimantan Tengah
Abstrak: The existence of sambar deer (Cervus unicolor) are increasingly threatened due to the destruction of habitat. One of the sambar deer protected area in Indonesia is Tanjung Puting National Park (TNTP). Population decline of sambar deer can be avoided by habitat management. Component of sambar deer habitat thats need to get more attention is food. An understanding of feeding behavior is needed as a complement to acquire the expertise and guidance sambar deer population. The aims of this study were: (1) understand the type of food, edible parts of plants and distribution pattern of sambar deer feed at Tanjung Puting National Park, (2) know the productivity, carrying capacity and the availability of sambar deer feed at Tanjung Puting National Park and (3) know the sambar deer feeding behavior at Tanjung Puting National Park. Data were obtained in three ways, consist of: literature study, field observation and interviews to stakeholders. Data were collected includes: vegetation analysis, identify the type of food, food productivity, food availability and feeding behavior of sambar deer. Results of vegetation analysis showed that the type of sambar deer foods in the Teluk Pulai Resort identified 53 plant species included to 33 families. Parts of plants eaten by sambar deer, consited: leaves (31 species), leaves and stems (4 species), leaves and flowers (6 species), leaves and fruits (10 species) and fruit as much as 2 types namely kasai (Pometia alnifolia) and betiti (Mangifera longipetiolata). The distribution pattern of sambar deer food plants including: clumped distribution (57,38%), random (16,39%) and unknown (26,23%). For plant species that follow the uniform pattern was not found. The data also showed that plant productivity of sambar deer food at Teluk Pulai Resort between 1.809.879,644 kg/day to 2.613.587,565 kg/day. Resulting carrying capacity of 2 individuals/ha or as many as 122.958 individuals in total. As for the amount of feed availability is 789.101.569,4 kg. Based on observations with a combination of focal animal sampling and time series methods about feeding behavior known that sambar deer eat on a tree is choosed based on height. Type the first leaves eaten by deer sambar are leaves on a tree that can be reached by sambar deer. Based on chi-square with 95% confidence interval indicates that the long eating sambar deer is influenced by gender and age (χ2 count = 121,547; χ2 table = 7,378).
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Judul: Peranan Polivinil Pirolidon terhadap Kinerja Membran Nafion pada Sistem Direct Methanol Fuel Cell
Abstrak: Nafion adalah membran yang umum digunakan sebagai proton exchange membrane (PEM) untuk direct methanol fuel cell (DMFC). Permasalahan utama Nafion yaitu methanol crossover yang tinggi. Oleh sebab itu, Nafion dimodifikasi permukaannya dengan pelapisan polivinil pirolidon (PVP) untuk meningkatkan kestabilan kimianya. Penelitian ini bertujuan mempelajari pengaruh penambahan konsentrasi polivinil pirolidon terhadap kinerja membran Nafion pada DMFC. Membran yang dihasilkan diharapkan memiliki kestabilan kimia yang lebih baik untuk mengurangi methanol crossover, serta memiliki konduktivitas yang tinggi. Penambahan PVP dibuat dengan variasi konsentrasi 4%, 6%, dan 9% dalam bentuk lapisan pada Nafion sebagai PEM untuk DMFC. Kemudian membran diuji dengan hasil nilai konduktivitas proton tertinggi dihasilkan pada Nafion-PVP 9% dengan nilai 0,0183 S/cm. Untuk nilai beda potensial dan arus tertinggi dihasilkan juga pada Nafion-PVP 9% dengan nilai berturut-turut 0,829 mV dan 0,802 A. Hasil uji kualitatif permeabilitas metanol menunjukkan tidak ada metanol yang terdifusi. Berdasarkan ciri tersebut, membran Nafion-PVP dapat diaplikasikan sebagai PEM untuk DMFC.
Keyword: direct methanol fuel cell, membran, nafion, polivinil pirolidon (PVP)