Judul: Analisis appraisal ekonomi perikanan purse seine di Pekalongan
Abstrak: Setiap pelaku usaha perikanan berusaha memaksimalkan keuntungan dan meminimalkan biaya per unit. Analisis appraisal merupakan analisis biaya dan pendapatan untuk melihat sejauh mana keuntungan yang diterima oleh nelayan purse seine. Penelitian ini bertujuan untuk mengetahui seberapa besar manfaat ekonomi yang diterima oleh nelayan Purse seine selama tahun 2000, mengingat pada pertengahan 1997 terjadi krisis moneter yang berlanjut menjadi krisis ekonomi yang mempengaruhi daya beli masyarakat. Selain faktor tersebut, Perairan Utara Jawa diindikasikan telah mengalami penurunan stok sumberdaya sehingga tingkat harga riil dan biaya operasianal terus meningkat. Dugaan adanya penurunan stok yang terjadi di Perairan Utara Jawa juga dapat ditunjukkan dari hasil tangkapan yang cenderung menurun selama 4 tahun terakhir. Hasil penelitian ini menunjukkan terjadinya kenaikkan harga riil ikan yang mencapai 78,76%. Dari segi penerimaan yang diperoleh hasilnya meningkat tetapi hal ini juga diiringi oleh naiknya biaya operasional karena daerah fishing ground yang semakin jauh.
Keyword: Fishing, Fisheries economics

Judul: Kebijakan Pungutan Hasil Perikanan (PHP): Studi Kasus Perikanan Purse Seine Pelagis Kecil di Pelabuhan Perikanan Nusantara (PPN) Pekalongan
Abstrak: Purse seine fishery in North Java coastal represent one of effort capture fishery which becoming importance for fishery society in Central Java, especially Pekalongan city. The purpose of this research is to analyze effort of occupation, value of ship productivity and fish composition, fish price standard (HPI), and volume an reward (%) of PHP towards of ship purse seine small fish pelagic. This research was studied during January to June 2006 for primary collecting data at Pekalongan Fishing Port, Central Java. Method used in this research is literature study and survey method. The result show that all purse seiner are capable to operate except for 81 GT ( 2004 & 2005) and 65 GT (2005) vessels; However and the productivity of purse seiner was decreased until 14,5 % - 60,9 % for 2004 and 2005. The standard of fish price was appropriated by Ministry Regulation and Rewards of PHP have opportunity increasing equal to 3.5 % – 4.5 %.
Keyword: 

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