Judul: Analisis Ketersediaan Ruang Terbuka Hijau dan Tingkat Perkembangan Wilayah di Kota Cimahi Provinsi Jawa Barat
Abstrak: Environmental quality of cities and regencies degrade continuosly and they are worsened by the declining of greenery open space acreage. It is due to population growth and increasing demand of land for settlements and facilities development. Cimahi turned into a municipality in 2001. Since the beginning, Cimahi developed intensively, nonetheless balance condition of social and economic should be maintained carefully. One of the environmental aspects is greenery open space composition. This research aims to describe land use change process, to identify the availability of greenery open space, to understand the dynamics of developmental process of Cimahi Municipality, and to determine factors affecting the availability of greenery open space of Cimahi Municipality. During 2007-2011 total land of Cimahi Municipality changed as much as 420.6 hectares turned into settlements. The availability of greenery open space in Cimahi in 2011 was 738 hectares or 17.9% of the total area which was not sufficient for the total population of Cimahi Municipality. Cimahi showed unequally developed, some regions consistenly stayed at the same level of hierarchy by the time, while others were fluctuated. Factors affecting the availability of greenery open space in Cimahi were allocation of building land in the regional spatial plan (RTRW), population density, amount of type facilities, population growth, and built up land in 2011
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Judul: Analisis Ruang Terbuka Hijau dan Kecukupannya di Kota Depok
Abstrak: Greenery open space (GOS) is a vegetated open space in urban areas, which its existence is often sacrificed in city development process. This study aims to determine acreage of GOS changes in Depok, to analyze the adequacy of GOS based on population, to identify level of development of the city, to analyze relationship between GOS changes and level of city development, and to identify factors affecting GOS changes. The results showed that in 2006 the GOS in Depok city was 2359.20 ha and 1729.53 ha in 2011 or it was a decline at about 629,67 ha during the period. Based on population number, Depok required 3.627,23 ha of GOS. Scalogram analysis indicated an increase in hierarchy of some subdistricts to level II and level I, and reducing of level III. The greatest changes of GOS occurred in the lower level of hierarchy (Level-III). This is due to limited land available for construction of facilities that are often sacrificed GOS. Determinants factors of GOS changes consisted of positive determinant, including acreage of vacant land, and negative factors, i.e. area allocated for built up in the regional spatial plan and initial acreage of GOS (2006).
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Judul: Electrophoretic Coating of Apatite Compouds on Stainless Steel 316L.
Abstrak: Stainless steel (SS) 316L is a metal which is used to bone plate. However, this metal still has low biocompatibility in a human body. The metal is coated by HAp in order to increase its biocompatibility. HAp on SS 316L is coated by electrophoretic deposition (EPD) method. We used two variables in EPD process, such as voltage and coating time to obtain the best coating. The XRD difractogram showed that SS 316L has been coated by HAp. Physical observation used by microscope optics showed that the best coating is achieved on 120V during 2 minutes.
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