Judul: Kajian Tingkat Kerusakan dan Masa Simpan Alpukat pada Rantai Pasok Pasar Wisata Bogor
Abstrak: As one of the horticultural commodities, avocados have a high enough level of damage in the process of distribution to the hands of consumers. This study aimed to map the avocado supply chain in the market which are located in Bogor tourist areas, then analyze the mechanical damage and shelf life, analyze the cost structure of production and the break even point, analyze the added value in each of the entities in the supply chain. Data analysis methods used were descriptive and quantitative analysis. The focus of the avocado supply chain entities in this study consisted of traders, wholesalers and retailers. There were four patterns of avocado supply chain flow. Retailers in Sari Barokah got avocados from two channels, that were traders and farmers. Retailers with large-scale in Pasar Bogor got avocados from wholesalers, while others got avocados directly from farmer. Mechanical damage occurred in the retailers was about 63.93%. Observations indicated the shelf life of rotten avocado at 9th day reached 51.07%, while the other was severely degraded avocado followed by a decline in selling prices. Amount of traders average total cost who supply to Sari Barokah and Pasar Bogor were respectively Rp 3,639.21 / kg and Rp 1,682.18 / kg. Average total cost at the wholesaler level was Rp 3,385.45 / kg. Average total cost of retailers in Sari Barokah and Pasar Bogor respectively Rp 5.965 / kg and Rp 4,924.73 / kg. Sales in each entity has exceeded the breakeven point. Traders who supply to the Sari Barokah and Pasar Bogor each earn added value ratio of 21.29% and 46.09% with the rate of profit respectively 18.76% and 41.58%. Ratio of added value that wholesaler earned were 41.59% and 41.16% rate of profit. The average of retailers added value in Sari Barokah and Pasar Bogor were respectively 33.26% and 44.21% with 31.17% and 43.45% average rate of profit.
Keyword: 

Judul: Kajian Pengaruh Tipe Ventilasi dan Suhu Penyimpanan Terhadap Perubahan Mutu Buah Alpukat (Persea Americana,Mill) dan Sebaran Suhu Dalam Kemasan
Abstrak: Post harvest handling of avocado in Indonesia usually are still done with less carefull during harvesting, packaging, transportation, and storage can lead to mechanical, physiological, chemical, and microbiological damage. Mechanical damage during the distribution process of fruits due to impact between fruit inside the packaging, the impact of the fruit with a wall packaging, as well as the excess pressure due to pile in one package. The use of corrugated box packaging by giving insulation between the fruit and ventilation holes are expected to reduce mechanical damage and changes in avocado fruit quality such as shrinkage weight, hardness, total soluble solids, and physical damage during storage. This research was done to investigate four packaging types : packaging without ventilation, circle type ventilation packaging, oblong type, insulation type; and two treatment of storage temperature of room temperature and 8 0C temperature. The testing result in the temperature distribution on the packaging indicates that the packaging with oblong ventilation type most quickly reach the expected storage temperature. The transport simulation results of the which was equivalent with 184.82 miles in the road out of town or approximately 3:08 hours for trucks with speed of 60 km / h shows the level of fruits mechanical damage in 0% on all packaging. Although the package with oblong ventilation is better in distribution temperature, but overall, the decreasing quality of avocado in circle ventilation package is slower than the other packages. Due to, the best package to be distributed the avocado is package with circle ventilation in temperature of 8 oC.
Keyword: 

Judul: Pembuatan Film Tipis Lithium Niobat (LiNbO3) Menggunakan Metode Chemical Solution Deposition (CSD) dengan Variasi Kecepatan Putar (Rpm).
Abstrak: Film tipis merupakan salah satu aspek yang mendapat perhatian sangat besar dalam bidang material, karena film tipis merupakan material menarik yang memiliki sifat optik yang sangat tergantung pada konstanta dielektrik, indeks bias, dan energi gap. Lithium Niobat (LiNbO3 ) dapat digunakan sebagai pelapis pada film tipis karena memiliki sifat piezoelektrik, electrooptical, pyroelectrical dan photorefractive yang sangat baik. Film tipis Lithium Niobat (LiNbO3 ) ditumbuhkan menggunakan metode Chemical Solution Deposition (CSD) dengan variasi kecepatan 3500 rpm, 5000 rpm, 6500 rpm, dan 8000 rpm. Metode ini memiliki keunggulan dapat mengontrol stokiometri film tipis dengan kualitas yang baik, prosedur yang mudah dan membutukan biaya yang relatif murah. Energi band gap yang dihasilkan dari film tipis Lithium Niobat (LiNbO3) berkisar antara rentang 2.1 eV – 2.8 eV dengan indeks bias berada pada rentang 2.18-3.2. Film tipis LiNbO3 memiliki parameter kisi a=b=5.54Ǻ dan c = 16.35 Ǻ. Struktur morfologi film tipis adalah permukaan yang homogen dan ukuran kristal berada pada rentang 0.417 μm – 0.680 μm.
Keyword: film tipis, sifat optik, litium niobat, chemical solution deposition, kecepatan putar