Judul: Pengelolaan Lanskap Habitat Musim Dingin` Sikep Madu Asia (Pernis ptilorhyncus) Berbasis Data Satellite Tracking Di Kalimantan Tengah
Abstrak: Since 2003, 49 Oriental Honey Buzzards (OHB) had been satellite tracked and 47% (23 raptors) have selected Borneo Island as their wintering habitat which is composed by core and edge habitat. The objective of this study are to identify the landscape characteristics of wintering habitat, to compare core and edge habitat characteristics, to compare landscape habitat characteristics in West and South Borneo, and to recommend the landscape management plan of OHB’s wintering habitat. Landscape habitat characteristics were analyzed both in core and edge habitat using Principal Component Analysis (PCA) combined with GIS and t-student test was used to compare the habitat characteristics both in West and South Borneo. The first ten principal components (PCs) and thirteen PCs were retained, which are explained by 77.737% and 78.027% of the data variance in landscape characteristics of core and edge habitats. The basic characteristic between that habitats were not found. According to the landscape characteristics comparison, both in core and edge habitat, a landscape management plan was
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Judul: Pengelolaan Lanskap Habitat Musim Dingin Sikep Madu Asia (Pernis ptylorhynchus) Berbasis Satellite Tracking Di Kalimantan Tengah
Abstrak: Knowledge about landscape characteristic of oriental honey buzzard (OHB) in the context of wintering habitat is a prerequisite for understanding their wintering as well as managing their habitats. This study intends to identify landscape characteristic of wintering habitat of OHB (core and edge habitat) in Central Kalimantan and to recommend management plan of wintering landscape habitat of OHB in Central Kalimantan. Geospatial Information System (GIS) combined with Principal Component Analysis (PCA) was used for analyzing several environmental variables in order to identify the characteristic in both core and edge habitats. Nine principal components (PCs) were retained and explained by 78,7% and 77,9% of the data variance in landscape characteristic of core and edge habitat, respectively. T-Student test method was used to compare environmental variables between core and edge habitat and also to compare with previous study in South Kalimantan, then the result was significantly different. Management of wintering habitat can be planed within a certain period (short term and long term) and specific location (core and edge habitat).
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Judul: The Isolation of Silver (Ag) from Fixer Sludge with Electrolysis methode
Abstrak: with the variations concentration, electrode of carbon, and voltages. The aim of research are looking for the easiest and eficient electrolysis. Among of 272.79 ppm of silver (impurities) could be produced from electrolysis fixer which used 300 times maintain the film. For 400, 500, and 600 times electrolysis were produced recently 49.42, 137.04, and 55.22 ppm. Futhermore, it was increased to 220.00 ppm from 700 times. These were possible because of density the solutions. From the electrode of carbon, 68.2222 g Ag (impurities) could be processed from size 14 cm x 3 cm x 3 cm. The next results 41.2050 g and 43.7559 g from the sizes 16 cm x 3 cm x 3 cm and 18 cm x 3 cm x 3 cm. The reasoned of this part any faster reaction on the most litle electrode. By the way, from voltages variation, the processed showed that 47.4575 g of Ag (impurities) could be produced from 11 volt. It’s caused the bigest voltages are also the bigest kinetics power on the reactions. Sampel and product were analized by AAS. Consentration has potential to be indicator, because of the used 700 times was given trend high Ag (impurities) became increase optimally at 11 volt, and much sediment that is 47.4575 g. The best rendemen is 13.33%. The other finding is that the strength of the time and the voltages strongly enfluence the electrolysis shown by the bigger result on F(calculation) than that of the F(table).
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