• Proceedings of the Korean Society of Precision Engineering Conference
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• 2009.06a
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• pp.31-32
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• 2009

• Journal of the Korean Society of Safety
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• v.10 no.1
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• pp.41-49
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• 1995

A potable oil skimmer is in need to remove spilt oils before they spread, which is applicable to various situations of oil viscosity, spill location, current, tides, waves and wind. An air suction skimmer was selected to be developed because of its advantages such as simple structure, excellent transportability, and easy deployment. A prototype operating by a commercial vacuum cleaner was fabricated. Tests of the skimmer showed good performance : the maximum suction rate of water and suction head were 18㎥/h and 2.7m, respectively.

• The monthly packaging world
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• s.241
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• pp.92-97
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• 2013

• 한국전자현미경학회:학술대회논문집
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• 1999.05a
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• pp.86-86
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• 1999

• 한국전자현미경학회:학술대회논문집
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• 1999.11a
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• pp.72-72
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• 1999

• Air Cleaning Technology
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• v.8 no.2 s.29
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• pp.25-33
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• 1995

• 월간산업보건
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• s.160
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• pp.44-48
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• 2001

• 월간산업보건
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• s.159
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• pp.12-15
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• 2001

• Clean Technology
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• v.9 no.2
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• pp.87-100
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• 2003

The aim of study was to suggest a methodology for applying cleaner production technology in dyeing & finishing process of textile materials. To accomplish cleaner production, we performed consulting activity in dyeing factory, which composed of following different procedures. First, we organized consulting team with specialists for dyeing, energy and chemicals, and visited dyeing companies for the purpose of doing basic investigation such as analysis of process, chemicals & effluents, condition of equipment and process flow of products. Environmental aspect of raw materials (dyestuff, chemicals) was assessed by TOC, COD, BOD, and effluent of that was assessed by TOC, COD, BOD, TDS and pH. Second, We find out the problems in dyeing&finishing process from the view point of dyeing process, energy, raw materials and process management by utilizing MB (material balance), LCA(Life Cycle Assessment), EB(Energy Balance). Third, we generated the solutions to achieve optimal process condition by brain storming method, and then implemented the solutions to each process. Finally, we determined their effectiveness after considering the results of repeating trials for the solutions. Cleaner production could be achieved by keeping optimal process conditions, equipment modification, improved production management, and on-site reuse or recycling.

• Journal of the Ergonomics Society of Korea
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• v.30 no.2
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• pp.331-338
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• 2011

Objective: The present study developed a comprehensive usability testing and analysis framework based on a physical interface model of product and user and applied the proposed framework to usability testing of canister-type vacuum cleaner. Background: The development of a user-centered product design is important to satisfy customers who want to use the product with ease of use and to keep the manufacturer competitive in the market. Method: The proposed testing and analysis framework consists of (1) characterization of physical product-user interface, (2) preparation and administration of usability testing questionnaire, and (3) analysis and interpretation of usability testing results. A usability evaluation of five vacuum cleaners was planned and administered based on the proposed framework and its analysis produced detailed and overall usability testing results for various aspects such as tasks, usability criteria, and design components. Results: The testing results were further utilized to identify usability problems and preferred design features of the vacuum cleaners. Conclusion: The proposed usability testing and analysis framework was found effective to identify preferred features and problems of a product design in a systematic, holistic manner. Application: The proposed framework can be of effective use for practitioners of product design and development to obtain comprehensive, quantitative usability testing information in a systematic manner.