Judul: Analisis kapasitas berlebih perikanan Pukat  Cincin Pekalongan dalam kerangka kebijakan perikanan tangkap di Laut Jawa dan sekitarnya
Abstrak: Excess capacity and overfishing have been identified as the two most important problems presently facing small pelagic fisheries in Java Sea. Here a bioeconomic model was applied as an approach for depicting the current status of Pekalongan fisheries and capacity utilization rate, as well as Data Envelopment Analysis (DEA) for estimating efficiency of purse-seiner, assessing economic impact of resources and setting an alteration policy in capture fisheries.
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Judul: Analisis kapasitas unit penangkapan ikan skala kecil (Kasus perikanan pelagis di Kabupaten Bangka)
Abstrak: Isu kapasitas berlebih (excess capacity) dan tangkap lebih (over fishing) telah menjadi masalah serius di sebagian besar perairan pantai di Indonesia. Kondisi ini dipicu karena sulitnya mengendalikan penambahan upaya penangkapan ikan. Kebijakan pengelolaan perikanan berbasis kapasitas penangkapan menjadi alternatif pendekatan untuk mengendalikan faktor-faktor penyebab timbulnya kedua isu tersebut. Namun sulitnya menentukan kapasitas penangkapan ikan sering menjadi kendala bagi pemerintah daerah dalam menerapkan model kebijakan ini. Bertolak dari hal tersebut, maka penelitian kapasitas unit penangkapan ikan dilakukan, dengan mengambil studi kasus pada perikanan pelagis skala kecil di Kabupaten Bangka, Provinsi Kepulauan Bangka Belitung. Penelitian ini bertujuan menggambarkan keragaan perikanan tangkap, mengestimasi pola musim dan daerah penangkapan ikan pelagis dan menilai tingkat kapasitas unit penangkapan ikan pelagis skala kecil menurut musim. Adapun manfaat dari penelitian ini adalah memberikan data dan informasi bagi perumusan kebijakan pengelolaan perikanan pelagis secara berkelanjutan.
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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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