Judul: Permodelan Sistem Pengawasan Mutu Produk Kualitas Ekspor Agroindustri Perikanan Rakyat
Abstrak: Untuk menghadapi perdagarigan dunia yang semakin ketat persaingan, agroindustri perikanan rakyat yang berorientasi ekspor harus meningkatkan daya saing produk di pasaran dunia secara kompetitif. Produk yang diperdagangkan harus selalu memenuhi standar yang diinginkan oleh konsumen. Pengkajian masalah sistem pengawasan mutu ini, dilaksanakan terhadap produk kualitas ekspor agroindustri perikanan rakyat, berupa ikan teri kering kualitas ekspor. Tujuan pengkajian masalah khusus ini adalah untuk merancang model Sistem Penunjang Keputusan di bidang pengawasan mutu produk di tingkat industri.
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Judul: Sistem penunjang keputusan pengendalian mutu produksi udang beku
Abstrak: Sebagai komoditi ekspor, udang beku memerlukan penanganan yang baik agar tidak mengalami penurunan mutu. Hal tersebut dikarenakan standar mutu yang ditetapkan negara tujuan tinggi dan konsumen sangat memperhatikan keamanan produk pangan yang akan dikonsumsi. Dalam produksi udang beku, teknik pengendalian mutu merupakan usaha untuk mempertahankan dan memperbaiki mutu produk ya ng dihasilkan agar sesuai dengan spesifikasi yang telah ditetapkan. Sistem penunjang keputusan berbasis komputer akan membantu para pengambil keputusan dalam proses pengambilan keputusan mengenai pengendalian mutu dalam agroindustri udang secara cepat, tepat, dan akurat. Sistem yang dikaji mencakup pengendalian mutu pada pasca panen udang segar dan industri pembekuan udang, mulai dari penerimaan bahan baku, proses produksi udang beku, sampai produk akhir udang beku yang siap diekspor. Tujuan pengkajian ini adalah untuk mengetahui faktor dan parameter yang berpengaruh terhadap pengendalian mutu produksi udang beku dan merancang model sistem penunjang keputusan pengendalian mutu produk pada industri pengolahan udang beku.
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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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