Judul: Suatu Studi Tentang Perikanan Laut Kabupaten Pasuruan, Propinsi Jawa Timur : Kemungkinan Pengembangan Jenis-Jenis Unit Penangkapan Ikannya
Abstrak: Penelitian ini bertujuan untuk mengetahui keadaan umum perikanan laut dan menganalisa kemungkinan pengembangan je- nis unit penangkapan ikan yang baik untuk daerah penelitian, ditinjau dari segi biologis, teknis dan ekonomis. Metode yang digunakan dalam penelitian ini adalah "me- tode survai", dimana data primer diperoleh melalui wawanca- ra langsung dengan nelayan dan data sekunder diperoleh dari instansi-instansi yang ada kaitannya dengan perikanan di daerah penelitian. Wilayah Kabupaten Pasuruan terletak pada koordinat se- kitar 112°30' BT 113°30' BT dan 7°30' LS - 8°30' LS. Per - airan Kabupaten Pasuruan diperkirakan mempunyai potensi les tari perikanan pelagis sebesar 1.800 ton/tahun dan perikan- an demersal sebesar 4.500 ton/tahun. Produksi perikanan laut Kabupaten Pasuruan pada tahun 1980 mencapai 6.984,1 ton, sehingga untuk daerah ini sudah mengalami tangkap le bih (overfishing) sebesar 684,1 ton atau 10,86% dari poten si lestari seluruhnya.
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Judul: Pengembangan Teknologi Penangkapan Ikan Di Perairan Teluk Apar Kabupaten Pasir Kalimantan Timur.
Abstrak: Sebagai salah satu wilayah di Kabupaten Pasir, Teluk Apar mempunyai potensi sumberdaya ikan yang saat ini belum dieksploitasi secara optimal. Kondisi ini memberikan peluang pengembangan usaha perikanan tangkap dengan memperhatikan ketentuan Perilaku Perikanan yang bertanggungjawab (Code of Conduct for Responsible Fisheries). Penelitian dilakukan dengan tujuan (1) Menganalisis status pemanfaatan sumberdaya ikan di Teluk Apar Kabupaten Pasir Kalimantan Timur dan (2) menganalisis teknologi penangkapan ikan yang tepat guna dikembangkan di Teluk Apar Kabupaten Pasir (biologi, sosial, teknik dan ekonomi). Pengumpulan data primer dilakukan melalui wawancara terhadap nelayan untuk menganalisis aspek biologi, sosial, teknik dan ekonomi. Pengumpulan data sekunder dilakukan melalui pencatatan statistik perikanan Kabupaten Pasir tahun 1996 – 2005 untuk menganalisis kelimpahan sumberdaya. Alat tangkap yang diamati adalah pukat cincin (purse seine), jaring insang dasar (bottom gill net), jaring insang hanyut (drift gillnet), jaring tiga lapis (trammel net), jermal (Tidal traps), rawai hanyut (drift long line), bagan tancap (lift net). Metode analisis data yaitu kelimpahan sumberdaya, analisis pasar, analisis finansial dan metode skoring. Hasil penelitian menunjukkan pemanfaatan sumberdaya ikan pelagis dan demersal di Teluk Apar melebihi jumlah tangkap yang diperbolehkan (totalallowable catch) 80% dari MSY. Jaring insang dasar, jaring tiga lapis dan purse seine merupakan unit penangkapan prioritas utama pengembangan.
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Judul: Enhancement of photon absorbtion on BaxSr1-xTiO3 thin films semiconductor using photonic crystals.
Abstrak: In this research, has been conducted BaxSr1-xTiO3 (BST) thin films manufacturing for mole fraction x = 0.25, 0.35, 0.45, and 0.55; and concentration of 1 molar using chemical solution depositon (CSD) method. The materials, which are used in this research, are barium acetate [Ba(CH3COO)2, 99%], strontium acetate [Sr(CH3COO)2, 99%], titanium isopropoxide [Ti(C12O4H28), 97.999%], gallium trioxide [Ga2O3], 2-methoxyethanol [H3COOCH2CH2OH, 99%] and 1 x 1 cm of transparent conductive oxide (TCO) glass as substrate. Two BST thin films are made that for BST thin films which are doped by 10% galium (BGST) as p-type layer and pure BST solution as n-type. BST solution is made by reacting barium acetate [Ba(CH3COO)2, 99%], strontium acetate [Sr(CH3COO)2, 99%] and titanium isopropoxide [Ti(C12O4H28)] into 2-methoxyethanol solvent [H3COOCH2CH2OH, 99%] in accordance with mass gram for each x value. While, BGST solution is made in the same way as BST solution, plus adding gallium at 10% of the mass of BST. Once all materials are reacted, then vibrated using ultrasonic for 90 minutes, and followed by coating BGST / BST on the TCO substrate. Once the layer is formed, then annealed for 15 hours at temperature of 500 °C with increasing rate of 1.67 oC/minute. Characterizations of BST thin films with or without photonic crystals include the absorbance and transmittance in the visible light spectrum, as well as the electrical photoconductivity characterizations. From BST thin films without photonic crystals indicate that our thin films have light absorption area on almost the entire range of the visible light spectrum even to the infrared range with absorption value over than 67.6%, in addition, it can be seen that the maximum absorbance of BST thin films for all mole fractions lie in blue to green light spectrum region, 457 nm ≤ λ ≤ 570 nm and the minimum in yellow to red light spectrum region, 570 nm ≤ λ ≤ 678 nm. The largest absorbance is found at x = 0.25 with average absorbance value of 92.04% and maximum and minimum absorbance peaks at wavelength of 500.89 and 657.72 nm, respectively. At x = 0.35, average absorbance value decreased to 83.55% with maximum and minimum peaks at 505.73 and 613.68 nm, respectively. Then increased to 91.16% at x = 0.45 with maximum and minimum peaks at 506.04 and 618.56 nm, respectively. At x = 0.55, average absorbance value decreased to 80.12% with maximum and minimum peaks at 507.85 and 608.79 nm, respectively. Moreover, it can be seen that the addition of barium mole fraction leads to wider maximum absorbance or minimum transmittance peaks and narrower minimum absorbance or maximum transmittance peaks in the same range of the green and blue & red light spectrums, respectively. BST thin films with photonic crystals show increasing in absorption for all x values in the range of 3.04 into 13.33%. At x = 0.25, average absorbance percentage increased 3.96% from 92.4 into 95.68%, for x = 0.35 average percentage increased 7.07% into 89.45 from 83.55%. Furthermore, average absorbance of BST thin films at x = 0.45 increased 3.04% from 91.16 into 93.93% and x = 0.55 has
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