Judul: Pengelolaan Lanskap Ketapang sebagai Bottleneck Habitat Sikep Madu Asia (Pernis ptilorynchus) ke Pulau Kalimantan
Abstrak: The migration of animals is a periodic movement of animals from the place where they has been living to the area is new and then travel back to their natural habitat, like Oriental Honey Buzzard (OHB). The OHB’s migration routes to Borneo Island passes through Ketapang as a bottleneck habitat. The objective of this research were 1) to identify the landscape characteristics of the OHB’s bottleneck habitat in Ketapang, 2) to analyze a potential of ecotourism based on OHB’s migration, 3) to compare characteristics of bottleneck habitat in Ketapang with wintering habitat in South Kalimantan and 4) to produce the landscape management plan of OHB’s bottleneck habitat. The landscape characteristics in bottleneck habitat was analyzed by using Principal Component Analysis (PCA) combined with Geographic Information System (GIS). The potential of ecotourism in Ketapang specified from purposive sampling that assisted by creating a grid on satellite tracking points and discussions with the experts. Seven principal components (PCs) were retained which is explained 76,2% of data variance in bottleneck habitat, T-Student test method was used to compare environmental variables between bottleneck habitat in Ketapang and previous study about wintering habitat in South Kalimantan, then the result was different, and specified five location that have potential of ecotourism in Ketapang. Management of bottleneck habitat can be planned with a certain period (short term and long term), and the ecotourism based on raptor migration can be developed in Ketapang.
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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: Characterizations of low alloy steel sae 4422  plated with chromic acid (Cro3)
Abstrak: Characterizations of low alloy steel SAE 4422 plated with chromic acid (CrOrO3) was use Optical Microscopy (OM), Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), RD),Energy Dispersive Analysis of X-Ray (EDAX), Hardness Test and Roughness Test. Microstructures analysis exhibits cracks and grain boundaries microcracks as a characteristics of chrome metal found at plating metal. Perlite and Ferrite as grains of steel found at base metal with grain boundaries around it. Phase analysis of plating metal appropriate to chrome metal with lattice constant (a) is 2.559 Å and phase analysis of base metal appropriate to iron ferrite with lattice constant (a) is 3.318 Å. Both plating and base metal have cubic system. Chemical analysis of plating metal at surface section exhibits that cracks area have highest value of carbon element compare with grains and grains boundaries area. While chemical analysis of base metal at cross section exhibits that perlite have highest value of carbon element compare with ferrite and grain boundaries. The hardness value of plating metal at surface section and cross section are 753 and 637 VHN. While, the hardness value of base metal and interface area at cross section are 205 and 373 VHN. The roughness value at measurement points of chrome surface for as received sample are 0.445 μm. Observation used Optical Microscopy and Scanning Electron Microscopy exhibits surface irregularities combine to form surface texture of plating metal at surface section.
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