Judul: Aplikasi Metode Schaefer : Analisis Potensi Sumberdaya Tongkol (Scombridae) di Perairan Labuan, Kabupaten Pandeglang, Jawa Barat
Abstrak: Upaya pembangunan perikanan laut di Indonesia memerlukan peningkatan sumberdaya ikan yang bersifat multi spesies dengan kondisi perikanan yang bersifat multi gear. Untuk hal tersebut sangat diperlukan data dan infomasi yang lebih banyak tentang sumberdaya perikanan laut. Tongkol (Scombridae) merupakan salah satu sumberdaya hayati laut yang memiliki nilai ekonomis cukup tinggi. Tongkol di Indonesia telah dimanfaatkan dalam bentuk makanan, oleh karena itu kita perlu mengetahui seberapa besar nilai potensi dan tingkat pemanfaatannya di suatu perairan, agar sumberdaya yang ada tetap terjaga kelestariannya.
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Judul: Aplikasi Model Schaefer Terhadap Hasil Tangkapan lkan Tuna Albakora (Thunnus alalunga) di Perairan selatan Jawa Hingga Sumbawa (Studi Kasus di PT. Sari Segara Utama, Benoa - Bali)
Abstrak: Informasi mengenai potensi sumberdaya perikanan dalam suatu perairan sangat diperlukan dalam usaha pelestarian dan manajemen sumberdaya tersebut, yang memungkinkan Usaha eksploitasi secara berkesinambungan pada taraf hasil tangkapan (catch) dan upaya penangkapan (effort) yang optimum, serta potensi maksimum lestari (MSY) sumberdaya yang ada. Penelitian ini dilaksanakan 30 Juni sampai 30 Juli 1999 di PT. Sari Segara Utama, Benoa-Bali. Pengumpulan data dilakukan dengan dua cara yaitu primer dan sekunder. Untuk data primer hanya untuk melihat pengoperasian alat tangkap, dan wawancara langsung dengan staf pegawai PT. Sari Segara Utama, sedangkan data sekunder diambil dari PT. Sari Segara Utama maupun dari tambahan literatur-literatur yang ada.
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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