• Journal of Agricultural Extension & Community Development
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• v.9 no.1
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• pp.11-27
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• 2002

The objectives of this study were to categorize agriculture, to analyze perception of sustainable agriculture and to suggest the directions for improving farming practices in Korea. This study was conducted by review of literature and mail survey. The data was collected from 225 purposively sampled agricultural students by questionnaire. Major findings of the study were as follows; 1) According to the respondents, sustainable agriculture may bring positive effects on the betterment of land conservation, water management and animal protection. 2) The respondents expected that the sustainable agricultural practices may diminish the use of agricultural chemicals and increase safe agricultural products. 3) Sustainable agriculture needs more labor power, however, the number of small and middle-size farms in Korea would not be increased. 4) Even though the price of sustainable agriculture products increases, the respondents expected that rural economic condition would not be much improved because of sustainable agriculture. 5) Agricultural students responded that number of farmers in sustainable agriculture would be increased in the future.

• Journal of Korean Society of Coastal and Ocean Engineers
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• v.5 no.2
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• pp.121-132
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• 1993

A three-dimensional barotropic model is used to compute meteorologically-induced circulations in the East Sea for monthly, seasonal and annual basis. The computed barotropic responses have shown that in the upper part of the 40$^{\circ}$ North latitude. counterclockwise meso-scale eddies have been formed off Dong Han Man, middle part of the East Sea and sea area between the Siberian coast and Hokkaido throughout the year except summer season. These results are in good agreements with some of earlier schematic circulation diagram.

• Convergence Security Journal
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• v.10 no.4
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• pp.77-82
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• 2010

Cloud computing is defined as numerous concepts by research institutions and scholars. However, due to the present business trend in the IT sector, emphasizing on cost and efficiency, cloud computing has been defined as a form of computing which can provide extendable mass storage components in the virtual environment. As a result, security issues have been arising due to the variety of cloud computing services provided by the industries. This paper aims to analyze the weaknesses such as security techniques and inquiries, and personal information protection required for various cloud computing services.

• The Journal of Korean Medicine
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• v.33 no.4
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• pp.9-16
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• 2012

Objectives: This study was purposed to gain basic information for design of medical tourism for Japanese tourists using traditional Korean medicine (KTM). Methods: A questionnaire regarding Korean traditional medical tourism was administered to Japanese tourists. 224 valid responses were selected, and their awareness of KTM, preferred subject and decision factors for participation in Korea traditional medical tourism were analyzed by SPSS 19.0 version. Results: 23.6% of surveyees gave a positive answer on interest in medical tourism of KTM and 44.6% showed a middle degree. The most preferred subject was medical check-up followed by skin aesthetics, orthopedics and gynecology. Communication, medical skill level, hospital facilities and medical expenses were indicated as the important factor for participation's decision on KTM-based medical tourism. Conclusions: KTM-based medical tourism could be a driving motor of medical tourism in Korea. The medical check & skin care associated medical services are recommended, and the public relationship for awareness of KTM supported by government is strongly required for acquisition of Japanese tourists.

• Journal of Korea Multimedia Society
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• v.20 no.11
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• pp.1768-1775
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• 2017

The SIP(Session Initiation Protocol) is an application layer call signaling protocol which can create, modify and terminate the session of user, and provides various services in combination with numerous existing protocols. However, most of cryptosystems for SIP cannot prevent quantum computing attack because they have used ECC(Elliptic Curve Cryptosystem). In this paper, we propose a NTRU based authentication and key distribution protocol for SIP in order to protect quantum computing attacks. The proposed protocol can prevent various attacks such as quantum computing attack, server spoofing attack, man-in-the middle attack and impersonation attack anonymity, and our protocol can provide user's anonymity.

• Proceedings of the KIEE Conference
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• 2005.07d
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• pp.2655-2657
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• 2005

When a fault relating to the urgent alarm occurs, we must prevent control rods from dropping and make one of two grippers in Control Rod Drive Mechanism (CRDM) grip the drive rod taking a control rod assembly. To enhance the reliability of holding control rods, we order two grippers to hold the drive rod. This action is called the double holding. In the middle of the movement of the drive rod, the latching of the drive rod can cause friction between a gripper and the drive rod. This state may give damage to both the gripper and the drive rod. In this paper, we have devised the method which can have two grippers hold the drive rod more stably, without damaging the equipment.

• Journal of Physiology & Pathology in Korean Medicine
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• v.22 no.4
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• pp.733-739
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• 2008

It was said that the epigastric region was the outbreak region of chest bind on Shanghanlon. But successive medical men annotated the epigastric region as the chest, which caused the misunderstanding that chest bind was a chest trouble. However Youzaijing, a medical man in Qing dynasty, presented that the epigastric region meant stomach and the middle of stomach did intestines, comparing Dachengqi-tang with Daxianxiong-tang. This view agreed with Huatuo's six-region-transmutation theory. Taojiean and Zhangjingyue also criticized on the six-meridian-transmutation theory, proposing that the change of cold damage didn't go by the fixed rules. This reflected the oriental medical pathologic view that pathogen invaded and advanced to the weak region by the relations between healthy qi and pathogen, and it criticized on the doctrinarian interpretation of Shanghanlon as Neijing. Huatuo insisted that stomach was the final stage of cold damage by presenting that theory. And this theory became a philological basis on Youzaijing's pathologic view.

• Journal of Environmental Science International
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• v.22 no.2
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• pp.195-203
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• 2013

I investigated the river morphology and river naturality according to the environment of the Hwang River. The numbers of flexions at the upstream regions were more than those of downstream regions. The Hwang River showed very low overall diversity of the flow. Materials of river shore at low channel width were mainly boulders or gravel at the upstream regions, and the middle and downstream were silts and clay. Artificial masonry and natural materials were mixed from materials of river levees. The Hwang River was some of the natural herbaceous vegetation to riparian zones. Land utilities for floodplain were extremely overall farmland were predominant, and partly used by natural vegetation in the forest, a soccer field, some park facilities, residential, and commercial facilities. The water was width sleep / rivers beam ratio of 10 to 20%. Currently estimation for river naturality widely used in rivers were consisted of a narrow wide a variety of items and did not reflect the actual.

• 제어로봇시스템학회:학술대회논문집
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• 2003.10a
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• pp.1871-1875
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• 2003

The cancellation of the output signal occur between output tubs have occurred place an electromagnetic interference and deteriorated the light efficiency of the neon tub. In order to prevent this problems, we have developed the modified electronic ballast for neon(MEBN). The MEBN have used a shielded line to the output and designated partly the half-bridge in the middle of the circuit. In an experimental results, this will be lengthen the life of the neon tub and obtain the effect which shields an electromagnetic wave to injurious to the people’s body.

• Journal of Families and Better Life
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• v.20 no.5
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• pp.137-147
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• 2002

Purpose of this study is to find the research direction to solve the housing problems for the elderly which based on approaches and issues in related studies. Research method was interpretative analysis of the articles issued from 1976 to 2002. Each approach (rationalistic approach, ecological approach, micro-sociological approach, typological approach, environment-psychological approach, welfare approach) produced helpful information and had relative merits. But the researchers must regard housing for the elderly as a social problem in macroscopic view to solve the housing problems for older people with welfare approach. As a result, to solve the housing problems with welfare approach for the elderly who live in their own place with community care, studies about lifetime home, care and repair, and management of housing for the elderly might be needed. And research about existing services, transfer system of services, financial problems, man power to manage the system might be needed to spread out the services to the middle class elderly.