Judul: Analisis finansial usaha pembenihan ikan nila gift di Desa Caringin Wetan kecamatan Caringin, Kabuaten Sukabumi, Provinsi Jawa Barat
Abstrak: Kabupaten Sukabumi memiliki potensi yang besar dalam budidaya perikanan air tawar, khususnya ikan konsumsi, poterisi tersebut masih memiliki peluang yang besar untuk ditingkatkan lagi pemanfaaiannya karena tingkat pemanfaatan lahan perikanan di Kabupaten Sukabumi masih tergolong rendah. Desa Caringin Wetan merupakan salah satu desa yang berada di Kecamatan Caringin Wetan Kabupaten Sukabumi. Desa Caringin Wetan memiliki keadaan alam yang mendukung bagi usaha pembenihan Ikan Nila Gift. Potensi alam yang baik ini dapat dimanfaatkan secara optimal bagi usaha pembenihan Ikan. Nila Gift.
Keyword: 

Judul: Tingkat Produktivitas Usaha Pembenihan Nila Gift di Wilayah Kecamatan Cisaat Kabupaten Sukabumi (Studi Kasus di Desa Kutasirna, Kecamatan Cisaat)
Abstrak: Kecamatan Cisaat memiliki potensi perikanan terutama usaha budidaya air tawar. Adanya kegiatan budidaya tersebut terutama pada usaha pembenihan menjadikan Cisaat sebagai kawasan sentra produksi benih. Para petani ikan di Kecamatan Cisaat umumnya bergerak pada pembenihan Nila Gift dengan dua pola usahanya yaitu monokultur dan polikuitur. Produktivitas merupakan rasio antara output yang dihasilkan dengan input yang digunakan. Dalam penelitian ini pengukuran produktivitas dilakukan pada usaha pembenihan Nila Gift (monokultur dan polikuitur), dengan output yang dihasilkan dari monokultur yaitu burayak Nila Gift dan dari polikuitur yaitu burayak Nila Gift dengan ikan Kol. Penelitian ini bertujuan untuk menganalisa kondisi teknis usaha pembenihan Nila Gift, menganalisa kondisi finansialnya dan menganalisa tingkat produktivitas terhadap input-input yang digunakan pada proses produksi usaha pembenihan Nila Gift. Hasil penelitian menunjukkan bahwa kedua pola usaha tersebut menguntungkan, namun demikian berdasarkan hasil perhitungan analisa usahanya terlihat bahwa kegiatan pembenihan Nila Gift dengan pola polikuitur di Desa Kutasirna memiliki keuntungan yang lebih besar daripada pola monokultur. Demikian pula pada perhitungan tingkat produktivitas menunjukkan bahwa pola polikuitur memiliki nilai produktivitas lebih tinggi daripada pola monokultur, sehingga alternatif usaha pembenihan Nila Gift yang dapat dipilih para petani ikan di Desa Kutasirna adalah usaha pembenihan Nila Gift dengan pola polikuitur.
Keyword: 

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
Keyword: