Judul: Beberapa Aspek Biologi Ilkan Lalawak , Puntius Bramoides (Cuvier & Valenciennes_ di Waduk Jatiluhur Jawa Barat
Abstrak: Penelitian beberapa aspek biologi lalawak, Puntius bramoides (C.V.) dilakukan dari bulan September 1979 sampai Desember 1979, dengan bertujuan untuk mengetahui perbandingan jenis kelamin, kebiasaan makanan, tingkat kematangan gonada, hubungan panjang berat dan kondisi relatif. Ikan contoh ditangkap dengan gillnet tradisional (anggoh), jala lempar dan ayab. Jumlah ikan contoh yang tertangkap selama penelitian 275 ekor, yang terdiri atas 127 ekor ikan jantan, 131 ekor ikan betina dan 17 ekor ikan yang tidak dapat ditentukan jenis kelaminnya. Perbandingan jenis kelamin lalawak selama penelitian adalah satu berbanding satu.
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Judul: Aspek Biologi Reproduksi Beberapa Jenis Ikan di Waduk Lahor, Jawa Timur
Abstrak: Penelitian aspek biologi reproduksi beberapa jenis ikan dilakukan sejak pertengahan bulan Desember 19778 sampai dengan akhir bulan Februari 1979. Ikan contoh ditangkap dengan "eksperimental gillnet" berukuran mata jaring 3,51; 5; 7,5 dan 8,5 cm. Alat tangkap lain yang digunakan adalah : gill net reproduksi, jala lempar dan pancing.
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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