Judul: Analisis kelayakan pengusahaan ikan lele (kasus : Kecamatan Babelan, Kabupaten, Bekasi, Propinsi Jawa Barat)
Abstrak: Indonesia merupakan negara kepulauan yang sebagian besar wilayahnya terdiri atas perairan, sehingga laut mempunyai potensi yang sangat besar. Beragam jenis ikan yang memiliki nilai ekonomis tinggi seperti udang, tuna, cakalang, ubur-ubur, kepiting, ikan hias, karang-karangan, termasuk mutiara dan rumput laut sangat mudah didapat. Sektor perikanan pada dasarnya dibagi menjadi dua yaitu perikanan tangkap dan perikanan budidaya. Potensi sektor perikanan tangkap Indonesia ditaksir mencapai 6,4 juta ton per tahun dengan tingkat pemanfaatan saat ini sebesar 4,4 juta ton per tahun (70 persen). Sementara itu, potensi Indonesia di sektor perikanan budidaya sebesar 15,95 juta hektar. Potensi budidaya ini terdiri atas potensi budidaya air tawar sebesar 2,23 juta hektar, budidaya air payau 1,22 juta hektar, dan potensi budidaya laut sebesar 12,44 juta hektar. Total produksi perikanan budidaya nasional saat ini baru sekitar 1,6 juta ton per tahun.
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Judul: Analisis kelayakan agribisnis ikan hias air tawar di Kelurahan Bojongsari Baru, Kecamatan Sawangan Kota Depok, Jawa Barat
Abstrak: Sebagai negara kepulauan terbesar di dunia, Indonesia mempunyai potensi sumber daya perikanan, termasuk ikan hias, yang sangat besar. Peluang pengembangan ikan hias air tawar di Indonesia cukup besar karena didukung oleh keanekaragaman jenis, kondisi lingkungan, dan sumber daya manusia. Walaupun demikian, potensinya belum tergarap maksimal karena pemerintah saat ini masih memprioritaskan ikan konsumsi. Padahal, peluang ekspor ke berbagai negara Asia, Eropa, Timur Tengah, dan Australia masih terbuka karena eksportir Indonesia baru mampu mengisi 20 persen permintaan pasar ikan hias dunia.
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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