• Monthly Korean Chicken
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• v.35 no.29 s.95
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• pp.58-59
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• 2003

• Monthly Korean Chicken
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• v.40 no.34 s.100
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• pp.74-75
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• 2003

• 전기산업
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• v.8 no.5
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• pp.32-49
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• 1997

• Monthly Korean Chicken
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• v.36 no.30 s.96
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• pp.56-58
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• 2003

• KOREAN POULTRY JOURNAL
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• v.18 no.3 s.197
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• pp.37-43
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• 1986

• Monthly Korean Chicken
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• v.38 no.32 s.98
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• pp.66-67
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• 2003

• Monthly Korean Chicken
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• v.39 no.33 s.99
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• pp.68-69
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• 2003

• Monthly Korean Chicken
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• v.41 no.35 s.101
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• pp.74-75
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• 2003

• Applied Chemistry for Engineering
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• v.25 no.5
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• pp.548-551
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• 2014

In order to reduce toxicity on the human body, four new cleaning agents (1-4) containing ester and ether functionalities have been invented. The synthesized cleaning agents's physical properties, biodegradabilities, and $LD_{50}$ values, which were conducted by Korea Testing Certification Institute by using standard method, showed excellent values. A specimen for cleaning ability was prepared by cutting in $60{\times}40mm$ size of stainless steel plate. The surface of the above specimens was treated with four different kinds of contaminants, such as cutting oil, anti-rust oil, drawing oil, and lubricating oil. Contaminated specimens were then immersed in compounds (1-4) for 1 to 5 minutes to dissolve oil in the cleaning agent. The data indicate that all compounds (1-4) exhibit good cleaning ability toward four contaminant oils. It is also confirmed that these compounds can be applicable to various industrial cleaning fields as nontoxic and biodegradable cleaning agents because of their excellent biodegradabilities and $LD_{50}$ values.

• Journal of Digital Convergence
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• v.10 no.8
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• pp.185-192
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• 2012

Globally, U-health services have been increased according to the increase in interests on health managing and the development of information communication technology (ICT) based on increases in advanced ages and chronic disease. Exiting U-health services provide required services and health information monitoring only through counsels and that represent limitations in preventing and managing cardiovascular disease patients like chronic patients. In this paper, we propose of U-health platform based health management service model using context information. In our service model can provide health monitoring, diet, and exercise service using context information of clinical information and wether in U-health platform environment. Service to offer is the specialized service using external content provider of DB. in addition to, doctor can to provide advice information to patient using monitoring service. The proposed service model provides effective services using context information in U-health platform environments to customers and that will improve the health of chronic patients.