Judul: Uji Performansi Pengering Efek Rumah Kaca (ERK)-Hybrid Tipe Rak Berputar untuk Pengeringan Sawut Ubi Jalar (Ipomoea batatas L.)
Abstrak: Rotating rack green house effect (GHE) solar dryer is one type of dryer with the source of energy from solar and biomass energy for drying of agricultural products on the racks that can be rotated verticaly. The capacity of the drying chamber is 48 kg of chopped sweet potatoes. The objective of this study is to test the performance of the hybrid green house effect dryer for drying chopped sweet potatoes and to define modeling of heat transfer in the drying chamber. There are three experiments of drying: the first is without products, the second and the third are drying products without rotating rack and implement the rotating rack 45° every 60 minutes, respectively. The results of chopped sweet potatoes drying show that drying temperature on the dryer chamber ranged between 31.6-61.5°C. To reduce moisture content from around 71.3 %wb to 9.96 %wb for Experiment 2 and to reduce moisture content of 72.76 %wb to 9.5 %wb for Experiment 3, it is needed 14.5 hours and 13.5 hour, respectively. The specific energy consumption of both experiments were 42.83 MJ/kg of moisture evaporated and 35.15 MJ/kg of moisture evaporated and the drying efficiency of 5.78 % and 7.47%, respectively. Based on the performance test, it can be concluded that rotating rack dryer shows better performance than that of without rotating rack.
Keyword: solar dryer, biomass, Chopped sweet potatoes

Judul: Rancang bangun dan Uji Kinerja Pengering  Singkong Efek Rumah Kaca (ERK)-Hibrid Tipe Rak dengan Turbin Ventilator untuk Sirkulasi Udara
Abstrak: Cassava is the fourth leading commodity after rice, wheat and corn. Market demand and high productivity of cassava make it as one of the potential export commodities. In case for export or industrial use fresh cassava must be processed first into semi-finished materials for added value. It will be better if the added value is left to the farmer. For the purpose, the farmer needs to be furnished with proper and affordable technology. This study aims to design, construct and testing a dryer which apply the principle of greenhouse effect by additional heating of biomass furnace. Dryer is designed with a capacity of 180 kilograms cassava from 65% wb moisture content up to 13% wb moisture content. Drying chamber has dimensions of 2 m x 1.5 m x 2.4 m (L x W x H) with 30 shelves. This dryer has a cross flow type heat exchanger and regulating the circulation of air using a turbine ventilator. On testing with the full capacity, the dryer can dried up 180 kg cassava chips from 61.31 %wb (158.53 %db) moisture content to 9.87 %wb (11.01 %db) moisture content. On these test the dryer has a total efficiency of 18.3%, energy share of solar energy 7.72% and biomass 92.28%, drying time is 49 hours at a rate of 4.50 %db/h. While testing with half capacity, was dried 95 kg cassava chips from moisture content of 69.47%wb (232.26 %db) to 8.81 %wb (9.67 %db), the total efficiency of the dryer was 14.84% with the share of energy from solar energy 7.31% and 92.69% of the biomass, drying time required is 28 hours with the drying rate 8.56 %db/h.
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Judul: Distemper Pada Anjing
Abstrak: Distemper merupakan penyakit infeksius pada bimbingan anjing yang menduduki tempet teratas dan penyakit ini tersebar di seluruh bagian dunia dimana terdapat anjing-anjing yang dipelihara, terutama pada anjing-anjing muda di kota-kota besar, pada kelompok-kelompok anjing atau pada situasi lain dimana banyak terdapat kontak antara anjing. Penyakit ini disebabkan oleh virus yang termasuk dalam famili Paramyxoviridae dan genus Morbilivirus. Infeksi virus ini sering disertai oleh infeksi sekunder oleh kuman Staphylococcus, streptococcus, Brucella bronchiseptica dan kuman Salmonella, inilah yang kadang-kadang sebagai penyebab kematian.
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