Judul: Suatu studi kasus tentang koperasi perikanan Mina Jaya Muara Angke, Kecamatan Penjaringan, Jakarta
Abstrak: Penelitian Masalah Khusus ini dilaksanakan pada tanggal 1 April 1987 - 15 Oktober 1987. Lokasi penelitian di Muara Angke, Kecamatan Penjaringan, Jakarta. Tujuan penelitian ini adalah untuk mengetahui dan mempelajari kegiatan usaha yang dilakukan koperasi perikanan Mina Jaya, mencari dan mempelajari kelemahan-kelemahan yang mungkin terdapat pada koperasi perikanan Mina Jaya dan mencari kemungkinan pengembangan dan perbaikan kegiatan koperasi perikanan Mina Jaya. Perumusan masalah akan dibagi menjadi 1) Bagaimanakah keadaan kelembagaan koperasi perikanan Mina Jaya, termasuk di dalamnya masalah organisasi dan manajemen, 2) Ваgaimanakah aspek usaha koperasi meliputi sarana, modal dan pengelolaan koperasi, karena menurut hasil penelitian Ditjen Koperasi (1986) kondisi lingkungan mempengaruhi keberhasilan koperasi. Metode yang digunakan adalah Studi Kasus (Case Study). Pengumpulan data dan informasi diperoleh dari data primer, sekunder dan pengamatan secara langsung.
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Judul: Anaisis keuangan koperasi perikanan : Studi kasus KUD Mina Bahari Desa Muara Kecamatan Blanakan Kabupaten Subang Jawa Barat
Abstrak: Sebagai salah satu bentuk usaha bersama bagi masyara- nelayan, KUD Mina Bahari yang bergerak di bidang kat perikanan pada kenyataannya belum mampu memberikan. pelayanan dan manfaat sepenuhnya bagi anggota. Kendala utama dalam meningkatkan nilai usaha pada umumnya. disebabkan oleh kemampuan pengelolaan, pengalaman organisasi, dan permodalan yang terbatas. Aspek manajerial merupakan hal yang sangat penting dalam mengelola usaha koperasi, salah satunya adalah manajemen keuangan. Hal ini berkaitan dengan kurangnya dana yang sering disebutkan sebagai salah satu hambatan dalam pengembangan koperasi. Masalah keuangan menyebabkan koperasi tidak memiliki kesempatan dalam memilih usaha yang menguntungkan. proteksi Dalam hal lain, campur tangan dan pemerintah dalam bentuk kemudahan-kemudahan IPB University seperti penyediaan kredit dengan bunga rendah seharusnya dapat mengatasi kelemahan dan kesulitan koperasi.
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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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