Judul: Kajian Penggunaan Kemasan Karton dan Peti Kayu terhadap Mutu Buah Tomat dalam Transportasi Darat
Abstrak: Quality of horticultural products after harvest can not be increase but maintaining it is very important. Postharvest handling that appropriate is necessary to maintain product quality one of them is to make the packaging that can keep the fruit quality to be in a good condition during transportation process. The purpose of this research is to study effect of some packaging types and filler materials to decline in tomato fruit quality parameters and the degree of mechanical damage. The observations were conducted based on the physical quality parameters such as mechanical damage, weight loss, hardness, and total soluble solids. Physical quality parameters of tomatoes were observed before and after transportation simulation. Simulations was performed using a simulator table an amplitude of 2 cm and frequency of 2.75 Hz for 1 hours and an amplitude of 2.5 cm and frequency of 2.75 Hz for 3 hours. From the simulation results after transportation, tomatoes have the same quality changes in each treatment, the level of dissolved solids increases, the weight of tomatoes decreases (shrinkage of high weight), hardness decreased. The longer the simulation of transportation is increased the percentage of mechanical damage. The best packaging for the transport of tomatoes during transport is the treatment of packaging cardboard with a sheet of newspaper as filler material because it has the lowest level of mechanical damage, low hardness degradation, and shrinkage is relatively small weights.
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Judul: The Effect of Types Packaging Fillers on Mechanical Damage of Cherry Tomatoes during Land Transportation Simulation
Abstrak: Tomat ceri (Lycopersicum esculentum Mill.) adalah komoditas yang mudah rusak, oleh karena itu memerlukan penanganan pascapanen yang baik. Selama transportasi, tomat ceri cenderung mengalami kerusakan mekanis akibat adanya ruang kosong dalam kemasan yang mengakibatkan gesekan dan tumbukan antar tomat maupun dengan dinding kemasan. Penelitian ini bertujuan untuk mengkaji pengaruh bahan pengisi dalam kemasan terhadap kerusakan mekanis tomat selama transportasi darat dan menentukan bahan pengisi kemasan transportasi terbaik untuk tomat ceri. Penelitian ini menggunakan kemasan peti plastik buah berdimensi 38 cm x 26 cm x 12 cm. Dalam penelitian ini, digunakan bahan pengisi cacahan kertas koran dan daun pisang serta tanpa bahan pengisi sebagai kontrol. Simulasi transportasi dilakukan pada frekuensi 3,9 Hz, amplitudo 4,2 cm selama 90 menit setara dengan transportasi sejauh 108,9 km. Hasil penelitian menunjukkan bahwa bahan pengisi berpengaruh nyata terhadap tingkat kerusakan mekanis dan kekerasan, namun tidak berpengaruh terhadap susut bobot, total padatan terlarut, dan warna. Bahan pengisi kertas koran memiliki kerusakan mekanis terkecil sebesar 9,58% dibandingkan dengan daun pisang kering sebesar 13,83%, dan tanpa bahan pengisi sebesar 20,58%. Bahan pengisi dengan menggunakan kertas koran merupakan bahan pengisi terbaik untuk transportasi tomat ceri dalam kemasan peti plastik., Cherry tomato (Lycopersicum esculentum Mill.) is a perishable commodity. Therefore, it requires good postharvest handling. During transportation, cherry tomatoes tend to suffer from mechanical damage due to the empty space in the packaging which results in friction and collision between tomatoes and the packaging material. This study aims to assess the effect of packaging fillers on mechanical damage to tomatoes during land transportation and determine the best transportation packaging fillers for cherry tomatoes. This study used plastic fruit crate packaging with dimensions of 38 cm x 26 cm x 12 cm. In this study, filler materials of long shredded newsprint and banana leaves were used and without filler material was used as a control. Transportation simulation was conducted at a frequency of 3,9 Hz, amplitude 4,2 cm for 90 minutes, equivalent to 108,9 km of transportation. The results of the study showed that the fillers material had a significant effect on the level of mechanical damage and firmness, but had no effect on weight loss, total soluble solids, and color. The newsprint filler material had the smallest mechanical damage of 9,58% compared to dried banana leaves at 13,83%, and without filler material at 20,58%. The filler material using newsprint is the best filler material for transportation of cherry tomatoes in plastic crate packaging.
Keyword: packaging fillers material, mechanical damage, cherry tomato, land transportation

Judul: Query Expansion based on Bilingual Dictionary Using Conditional Probability
Abstrak: Query expansion is a technique that can be used to bridge vocabulary gaps between queries and documents in the collection. With query expansion, user will be helped to formulate queries well so that user will optimize the search result. In this study, the expansion term was resulted from the translation of bilingual dictionary. Subsequently, several terms of expansion were elected based on the closeness of its relationship with the original query. This research showed that conditional probability can be used to select expansion term in bilingual translation method query expansion. The result of 1000 documents was more than 97% relevan document can be retrieved by this system. The more expansion term used, the larger number relevan document was retrieved.
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