• Journal of the Institute of Electronics Engineers of Korea CI
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• v.41 no.4
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• pp.23-30
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• 2004

Ontologies play an important role in the Semantic Web by providing well-defined meaning to ontology consumers. But as the ontologies are authored in a bottom-up distributed mimer, a large number of overlapping ontologies are created and used for the similar domains. Ontology sharing and reuse have become a distinguished topic, and ontology merging and alignment are the solutions for the problem. Ontology merging and alignment algorithms previously proposed detect conflicts between concepts by making use of only local syntactic information of concept names. And they depend only on a semi-automatic approach, which makes ontology engineers tedious. Consequently, the quality of merging and alignment tends to be unsatisfying. To remedy the defects of the previous algorithms, we propose a new algorithm for ontology merging and alignment which uses local and global semantic set of a concept. We evaluated our algorithm with several pairs of ontologies written in OWL, and achieved around 91% of precision in merging and alignment. We expect that, with the widespread use of web ontology, the need for ontology sharing and reuse ill become higher, and our proposed algorithm can significantly reduce the time required for ontology development. And also, our algorithm can easily be applied to various fields such as ontology mapping where semantic information exchange is a requirement.

• The Korean Journal of Elementary Counseling
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• v.8 no.1
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• pp.51-66
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• 2009

This study aims at examining how it becomes to change the interpersonal cognitive problem solving ability development of elementary rejected children when teacher practices counseling strategy in classroom To do this, 130 fifth-graders of 4 classrooms from H Elementary School in B City went through Ahn Ie-hwan's(2007) social status type system by using the peer nomination, Then, 21 children were labeled as rejected children. Among them, 16 children were divided into experimental group & control group, 8 for the each group. In order to improve the interpersonal cognitive problem solving ability of rejected children with teacher's counseling strategy in classroom used in this study, 5 weeks activity made according to the level of classroom was carried out in four sides, that is, setting of classroom structure-environments, classroom activities, counseling activities, cooperative learning method, referring to Dreikurs'(1971) 'The counseling strategy in classroom' composed of self-discipline, cooperation, mutual respect, shared responsibility, and social equality. This study obtained the following results. First, There was a significant effect in improving the interpersonal cognitive problem solving ability of rejected children. Looking into sub-factors, there was a significant effect in improving consequential thought and method-ends thought except alternative solution thought and causal thought. Second, there was a significant difference in social status & change of 5 types of children in social status in the respective classrooms when those of the experimental group where teacher's counseling strategy in classroom carried out and those of the control group where teacher's counseling strategy in classroom not carried out were compared. To conclude the results mentioned above, We can see the fact that the counseling strategy in classroom positively affected interpersonal cognitive problem solving ability.

• Journal of the Korean Society of Food Science and Nutrition
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• v.46 no.2
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• pp.237-243
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• 2017

To investigate the effects of lactic acid bacteria (LAB), Lactobacillus sakei, Lactobacillus curvatus, and Lactobacillus brevis, commonly found in kimchi, on N-nitrosodimethylamine (NDMA) and its precursors such as nitrite, dimethylamine (DMA), nitrate, and biogenic amines, Baechu (Chinese cabbage) kimchi prepared with and without LAB and $NaNO_2$ was periodically monitored for 20 days to analyze concentrations of NDMA and its precursors. Control was amine and nitrite-rich kimchi. NDMA and its precursors were analyzed to determine differences in concentrations between LAB-fortified kimchi and the control. The amounts of NDMA, nitrite, DMA, and nitrate remaining in LAB-fortified kimchi were significantly reduced compared with those of control kimchi. In addition, biogenic amines were significantly lower in kimchi prepared with L. sakei, L. curvatus, and L. brevis. These results suggest that addition of LAB to the kimchi preparation would be a promising solution for production of NDMA-reduced kimchi.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.31 no.1D
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• pp.157-166
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• 2011

This study is to mention necessity of building Green-way by foreign theoretical backgrounds and analyzing cases of internal and external, and is purposed on assessment of projects in operation internal by above necessity. For these assessments, looking into cases of green-way plan of external and defining issues by comparing with internal cases to suggest solutions. Green-way planning methods can be classified in physical and non-physical aspects. From among these, for case of non-physical method, its environments of each nation, region, local are all different from each other and can not be turned into a numerical value and quantification, as well. Therefore, analyzing and suggesting the directions on the basis of physical method. Understanding the improvements degree of physical environment of before and after implementation of projects by using successful cases of external similar to actual state of internal. By these process, inflecting to suggest a seek way of applied to internal projects. Local aspects, doesn't have the specific analyzed data of improvement of pedestrian environment and building green-way and are shortage of implementation of projects also. For that reason this study is to look into the status and plans of building green-way in Seoul and analyzing the 7 completed region cases. And suggesting issues of projects and the direction of national and local green-way projects.

• The Journal of the Korea Contents Association
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• v.12 no.5
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• pp.163-174
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• 2012

This study was conducted to seek improvements by correcting problems of the qualification system of theatrical art technicians, which has a relatively weak foundation, compared to other national industrial qualifications. Through the previous researches, this study attempted to seek main issues and development plans in the field of theatrical art technology, while carrying out in-depth interviews for theatrical art technicians. With the results of this study, problems of the existing system can be largely divided into two kinds. Firstly, the existing system is mostly focused on performance places, especially large-sized public performance halls. Secondly, as a problem in terms of management, the existing system has non-professional management subjects and non-convenience regarding the number of qualification tests and places only in Seoul and once a year. This study grasped problems based on practical demands of the related industry through in-depth interviews with experts, thus seeking proper solutions. What matters most is that the present system should be converted from performance place-centered management to performance-centered management. In other words, by expanding qualification-acquired experts into all the performances, the system should practically contribute to improving the quality of performances and expanding the treatment of experts, which is the fundamental purpose of this system. Moreover, it is needed to seek a plan to expand the convenience of applicants for the procedures and methods of acquiring qualifications.

• Proceedings of the Korean Society of Community Living Science Conference
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• 2009.09a
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• pp.106-106
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• 2009

영국에서는 농촌문제의 심각성과 범정부적 대책 마련에 대한 부처간 인식 공유가 증가함에 따라 2000년 "농촌백서"에 '농촌서비스 표준화(Rural Services Standard, RSS)'를 제정하였다. RSS는 농촌 주민의 삶의 질 제고와 복지 서비스 향상을 위해 달성할 주요 서비스의 National Minimum을 의미한다. 매년 RSS 운용에 대한 지속적인 모니터링을 통하여 내용을 매년 업데이트 하고 있다. 교육 및 아동서비스, 광대역 통신, 사회적 돌봄, 우체국 서비스, 보건, 인터넷 접속, 긴급 서비스, 교통의 8개분야 13개 서비스 기준을 설정 제시하고 있다. 우리의 경우도 농촌 주민의 삶의 질 향상을 위한 범정부적 투자가 이루어져 왔지만 농촌지역의 사회서비스 기준을 도시와 비교해 보면 아직도 부족한 부분이 많이 있다. 농촌 인구가 감소되고 있는 상황에서 지속적인 하드웨어 중심적 투자에 대한 의문제기와 함께 농촌 주민들이 최소한의 공적 서비스를 활용할 수 있는 기반이 되어야한다는 의견이 대립되고 있는 가운데 그 해결책을 찾기 위하여 '농촌 서비스 기준'을 설정하자는 논의가 추진되고 있다. 이에 본 연구에서는 인구 5만 이상 군지역에 속하는 경상북도 울진군 기성면 척산리를 중심으로 농촌 정주지원 서비스 요구사항을 분석하였다. 척산리에는 총가구 187호 363명이 거주하고 있으며 지난 3년간 인구 이동이 전혀 없었다. 주민들의 연령대는 50~60대가 가장 많으며 척산 3리가 가장 고령화 되어 있는 것으로 나타났다. 교통 환경은 좋은 편이었는데 기성공용버스 정류장에 10곳 이상의 차편이 있고 7번 국도가 있어 타 지역으로 이동도 용이하였다. 마을에 보건/의료를 담당하는 곳은 보건진료소뿐이었으며 잦은 외근과 구급약 부족 등으로 불편을 호소하고 있었다. 응급상황 발생시 수송 가능한 응급체계는 갖춰져 있지 않았고 노인들이 가장 많이 이용하는 물리 치료실은 일주일에 3번 개방하기에 불편하다고 하였다. 3층 건물의 복지회관이 있으나 장날(5일장; 1일, 5일)만 개방되어 이용에 한계가 있었고 마을주민을 위해 운영되는 프로그램은 없었다. 논농사 중심의 경제생활이었고, 부녀회와 청년회 등은 면단위 또는 행정리로 묶어서 운영하고 있었다. 주민들은 울진군 면소재지 중 척산리에만 약국이 없어 불편한 사항이 많기에 약국, 물리치료실의 상시 개방을 필요로 하였으며 장날을 이용한 노인대상 영화상영, 강연회 등 다양한 문화프로그램 운영을 희망하였다.

• Transactions of the Korean Society of Mechanical Engineers
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• v.16 no.11
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• pp.1999-2010
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• 1992

The fixed slab analogy device which can measure stress intensity factors(S.I.F) experimentally by slab analogy theory is developed in this paper. The margin of errors resulted from the new testing apparatus are between 0.02% and 8.25%. Therefore, it is assured that this one can be effectively used for the more accurate measurement of S.I.F.( $k_{I}$, $k_{I I}$) than conventional apparatus. The pitch of master grating used in this experiment is 0.1mm It is known that the ratio of the distance from crack tip to the crack length on obtaining the accurate stress intensity factor is between 0.4 and 0.7. The optimum curvature radius of slab is about 125mm. The thickness of slab(plate) used in the fixed slab analogy device is 0.05mm(P.V.C. ; E = 64 MN/ $m^{2}$, .nu.=0.38), which is proved to be suitable for the test. The optimum material for the frame(slab`s external boundary) is a alloy tool steel(SKS 5) plate and its thickness is 1mm. In this research, the rigid cracks are directly bonded to the slab surface by cyanoacrylate adhesive for the easiness of slab making and conformity to the practical crack figure. The material of rigid crack is thin steel plate. It is expected that the developed method can be used effectively for the analysis of $k_{I}$ and $k_{I I}$ of arbitrary shaped or distributed cracks.cks.

• Journal of KSNVE
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• v.8 no.1
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• pp.146-156
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• 1998

To mitigate excessive noise from highways, and high speed rail road, it is often necessary to construct a noise barrier. Absorptive barroer attenuation solution is obtained for the problem of diffration of a plane wave sound source by a semi-infinite plane. A finite region in the vicinity of the edge has an highly absorbing boundary condition ; the remaining portion of the half plane is rigid. The problem which is solved is a mathematical model for a hard barrier with an absorbing edge. If the wavelength of the sound is much smaller than the length scale associated with the barrier, the diffraction process is governed to all intents and purpose by the solution to a standard problem of diffraction by a semi-infinite hard plane with an absorbent edge. It is concluded that the absorbing material that comprises the edge need only be of the order of a wavelength long to have approximately the same effect, on the sound attenuation in the shadow side of the barrier. Traffic noise is composed of thousands of sources with varying frequency content. To simplify noise predictions when barriers are present, an effective frequency of 550Hz may be used to represent all vehicles. The wavelength of sound at f=550Hz for traffic noise is about 2 feet. According to the above conclusion, an absorptive highway noise barrier is only needed to cover to cover approximately a 2 foot length of absorbing material. It would be more economical to cover only the region in the immediate vicinity of the edge with highly sound obsorbent material.

• The Journal of Korean Association of Computer Education
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• v.17 no.6
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• pp.93-102
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• 2014

A mobile office environment using mobile devices, such as tablet PC, mobile phone is gradually increased in enterprises, banking and public institutions etc which is no limitation on places. It occurs advanced and persist security threats that are required effective security management policy and technical solution to be secure. For BYOD (Bring Your Own Device) environment, technical security management solutions of network control based, MDM (Mobile Device Management), MAM (Mobile Application Management), MCM (Mobile Contents Management) were released, evolved and mixed used. In perspective of integrated security management solution, mobile security product should be selected to consider user experience and environment and correct quality evaluation model of product is needed which is provided standards and guidance on the selection criteria when it was introduced. In this paper, the most widely used MDM solution is selected to take a look at its features and it was reviewed the product attributes with related international standard ISO/IEC25010 software quality attributes. And then it was derived evaluation elements and calculated the related metrics based on the quality analysis model. For the verification of quality evaluation model, security checks list and testing procedures were established; it applied metrics and analyzed the testing result through scenario based case study.

• Journal of the Institute of Electronics Engineers of Korea SP
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• v.44 no.4 s.316
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• pp.26-34
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• 2007

Intelligent projection system indicates a system that displays desired images on an arbitrary screen in an arbitrary environment using projector without noticeable image distortion. In recent years, projectors have become widespread and ubiquitous due to their increasing capabilities and declining cost. Moreover, the size of projectors is getting smaller and handhold projectors are emerging. Thanks to these advances, the demand for intelligent projection system has been significantly increased and the demand has led to remarkable progress of the related techniques or technologies to intelligent projection system However, there are still some environments (or conditions, mainly dynamic ones) that intelligent projections systems cannot handle and they have limited the application area of intelligent projection systems. This paper exemplifies such environments (e.g. specular screen, dynamic screen) and propose effective solutions (i.e. multiple overlapping projectors, complementary pattern embedding) for thor And the usefulness of the solutions is verified through experimental results and user evaluation. Notice that the environments are considered not simultaneously but independently because it is impossible to consider them simultaneously by simply combining the solutions for each. Acually, a totally different solution would be necessary to consider them simultaneously. Therefore, we expect that the proposed methods would largely extend the application area of intelligent projection systems except for severely arbitrary environment.