Judul: Analisa biaya-manfaat program konservasi terumbu karang di Desa Gili Indah, Kabupaten Lombok Barat, Provinsi Nusa Tenggara Barat
Abstrak: Dalam program kosnervasi tidak hanya memberikan manfaat langsung bagi masyarakat disekitarnya, tetapi juga manfaat tidak langsung yang nilainya tidak ditemukan di pasar. Begitu juga dengan biaya, tidak hanya biaya langsung (tangible) yang dikeluarkan, tetapi juga biaya tidak langsung (intangible). Tujuan dari penelitian ini adalah 1) untuk mengetahui total manfaat dari program konservasi terumbu karang di Desa Gili Indah, 2) untuk mengetahui total biaya yang dikeluarkan dalam program konservasi terumbu karang di Desa Gili Indah. Dengan menggunakan metode survey, diketahui total manfaat dari program konse~asi sebesar Rp.114.342.713.945,69 per tahun.
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Judul: Analysis of sustainable coastal management in Lombok Barat District
Abstrak: Kabupaten Lombok Barat is located in one of the big island in the province of East Nusa Tenggara, Kabupaten Lombok Barat is unique in term of ecological richness. Around 60% of the natural resources in Lombok Barat is located in the coastal areas and, eventhough its covered only 8,81% from the total area of East Nusa Tenggara, almost all important natural coastal resources have been found in the areas.
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Judul: Hybrid solar cells of ZnO nanoparticles/chlorophyll was modified metal ions (Zn2+ and Cu2+ )
Abstrak: Zinc Oxide (ZnO) is a n-type semiconductor with a wide the energy band (Band Gap) is 3.37 eV at room temperature and 3.34 eV at low temperature with a large exiton binding energy is 60 meV. ZnO has been synthesized by hydrothermal method, resulting in a decrease in particle size over the duration of the hydrothermal changes. Crystallographic structure of ZnO were characterized using XRD, has shown the characteristic pattern of a hexagonal wurtzite structure, the crystallite size increases to changes in particle size. Changes in particle size has also led to a change in the absorption peak of ZnO as has been demonstrated posted under test using the optical properties of UV-Vis spectrophotometer. Changes of this uptake has also led to changes in the energy band gap, which increases its band gap energy of the particle size. In electronic applications, especially in solar cells. Chlorophyll is considered less effective, because of their very nature are easily degraded as a result of several reactions which are acid, lighting and temperature. The results of the stability test using a halogen lamp 34 W/m2 for 5 hours, that the substitution of chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form more stable than natural chlorophyll. The characterization of the optical properties, the combination of ZnO / chlorophyll in the form of hybrid films has led to a shift in the absorption region of ZnO becomes more widely from the UV to Visible. ZnO/chlorophyll has absorption range of 350-515 nm, ZnO / Zn-feofitin 332-401 nm and 332-632 nm for Cu-feofitin. The combination of ZnO/chlorophyll and CuSCN as a solid electrolite in hybrid solar cell, a modified chlorophyll with metal ions Zn2+ and Cu2+ has been shown to form a more stable I-V curve. It is characterized by its fill factor value greater than natural chlorophyll. Nevertheless, solar cells with natural chlorophyll has been able to produce higher efficiency values of chlorophyll were substituted.
Keyword: Hydrothermal, ZnO/Chlorophyll modified, Hybrid Solar Cell