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Hartulistiyoso E.,University of Technology of Indonesia
Acta Horticulturae | Year: 2013

Maize represents an important source of feed as well as raw material for food. One of the problems normally faced in tropical countries is pest infestation by the insect Sitophilus zeamais Motsch during the storage of maize in silo. This research aimed to study the influence of microwave treatment to the mortality of insect pest Sitophilus zeamais Motsch and to the content of starch and protein of treated maize. The research was conducted in the Laboratory of Agicultural Energy and Laboratory of Food Chemistry, Bogor Agicultural University. The sample of 200 g of dry maize was invested by 50 insects and heated in a microwave exposed at 240, 480 and 720 W, respectively, for 60, 90 and 120 s. The results showed that 100% mortality could be achieved using microwave treatment with 720 W in 60 s which generated temperature of 74°C. The treatment used a very short time (60 s) compared to the use of hot air oven which needed 22 min exposure for a similar temperature. The short time heating by microwave had an advantage to maintain 68.5% starch content, and 9.4% protein while killing the insect pest totally. Source

Bidin N.,University of Technology Malaysia | Abdullah M.,University of Technology Malaysia | Shaharin M.S.,University of Technology Malaysia | Alwafi Y.A.,University of Technology Malaysia | And 3 more authors.
Laser Physics Letters | Year: 2013

An aluminum substrate has been alloyed with an iron and copper mixture by a laser induced plasma technique. The nanosecond pulse duration and the high plasma temperature expose the interacting materials to decalescent and recalescent regions, contributing to the formation of new chemical composites such as AlFeCu, AlFe, AlCu and CuFe. The microstructure of the alloyed surface is observed to be heterogeneous, with no crack formation and with few pores. The hardness of the laser treated surface is 103 HV, seven times harder than that of the substrate (15 HV) at a corresponding super lateral energy of 5282 mJ cm-2. © 2013 Astro Ltd. Source

David W.,University of Technology of Indonesia | Kasim A.,Andalas University | Ploeger A.,University of Kassel
Pakistan Journal of Nutrition | Year: 2013

Meals are human creation that unconsciously represents the way in which part of the world they are living and based on they culture background. Recently, the issue about food is not only how to prepare it but as well as how to get nutritious food supporting human health from limited natural resources. From this view point, choosing food gives an insight not only on the nutrition itself but about cultural and environmental factors as well. The objective of this study is to investigate if biodiversity plays still an important role in supporting local food security and sustaining nutrition intake in a matriarchal system. The study was done in Minangkabau; in coastal area, hilly area and lake area of West Sumatera, Indonesia. Participatory Rural Appraisal (PRA) was used to investigate biodiversity and nutrition intake. Qualitative and quantitative research technique include: In-depth interview and survey were carried out. The data was coded and clustered by using MAXQDA10. The results indicate that the matriarchal system is still playing an important role in nutrition intake in Minangkabau. The mother plays important roles in kitchen activity, meal decision and land ownership, although she is not involved directly into farming. The mother plays important role to increase the nutrition intake in the household by using local food diversity or by cultivating spices in the backyard. Thus matriarchal system generates kitchen representing women activity and play still an important role in managing the farm to fork activities. © Asian Network for Scientific Information, 2013. Source

Weng N.,Southern Illinois University Carbondale | Vespa L.,Southern Illinois University Carbondale | Soewito B.,University of Technology of Indonesia
Computer Networks | Year: 2011

An intrusion detection system (IDS) is a promising technique for detecting and thwarting attacks on computer systems and networks. In the context of ever-changing threats, new attacks are constantly created, and new rules for identifying them are dramatically increasing. To adapt to these new rules, IDSs must be easily reconfigurable, they must keep up with line rates of network traffic, and they must have high detection accuracy. In this paper, we propose a high-performance memory-based IDS that can be easily reconfigured for new rules. Our IDS achieves high performance and memory efficiency by utilizing deep packet pre-filtering and novel finite state encoding. We present simulation and experimental results that show the novelty and feasibility of our system. © 2011 Elsevier B.V. All rights reserved. Source

Fetriyuna,University of Technology of Indonesia
International Journal on Advanced Science, Engineering and Information Technology | Year: 2015

Most soybean varieties are still relying on imports from abroad. Therefore, soybean prices are still fluctuating, Indonesia still depends on the high number of imports due to the lack of white soybean production in this country. It's Necessary to find an alternative of raw materials that are produced domestically. Black soybean is one of the varieties of soybeans that has many advantages, both in terms of health and economic. Since the year of 2009, Padjadjaran University has developed a superior black soybean seed which can adapt with minimal input of agriculture process namely "Darmo". Darmo black soybean varieties were characterized and compared with other types of black soybeans that had previously cultivated. The physical characteristics of Darmo black soybean varieties include sphericity 0,74; volume of seed 80 mm3 seeds / grains; bulk density 0.71 g / ml; particle density of 1.69 g / ml. Chemical characteristics of black soybean of Darmo varieties respectively: moisture 10.87%, protein 35.62%, fat 16%, ash of 5.3% and carbohydrate 32.21%. When compared to the Black Soybean Varieties of Malika, black soybean Darmo varieties has nearly the same nutritional composition so that the potential to be developed into a valuable source of food nutrition and high efficient. Source

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