Judul: Analisis Kebijakan dan Biaya Transaksi Pengelolaan Sumberdaya Perikanan Tangkap di Kabupaten Maluku Tengah. Studi Kasus di Kecamatan Leihitu
Abstrak: Indonesia adalah negera bahari yang memiliki potensi sumberdaya perikanan sangat potensial. Dengan karakteristik kelautan tropika, maka salah satu sektor andalan sumberdaya kalautan adalah sektor perikanan. Karakeristik laut negaranegara tropis dicirikan dengan jumlah kandungan sumberdaya perikanan yang terdiri dari berbagai macam spesies ikan lebih besar jika dibandingkan dengan negaranegara sub tropis, hal ini disebabkan karena laut tropika mempunyai ekosistem pendukung berupa terumbu karang, padang lamun dan mangrove sebagai tempat berkembangbiaknya berbagai jenis spesies ikan. Kondisi ini, secara ekonomi menguntungkan bagi Indonesia karena sektor perikanan dapat dijadikan sebagai salah satu ujung tombak bagi pertumbuhan ekonomi nasional. Hal ini sejalan dengan kebijakan pegelolaan sumberdaya perikanan di Indonesia selama ini lebih ditujukan untuk meningkatkan jumlah produksi perikanan dengan mendayagunakan masyarakat nelayan, baik nelayan skala besar seperti nelayan industri maupun nelayan skala kecil yang terdiri dari nelayan tradisional.
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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: 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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