• The Journal of the Korea Contents Association
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• v.13 no.9
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• pp.216-226
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• 2013

This study is conducted to verify the effect on the job performance mediating job satisfaction of participant's self-leadership and empowerment for Senior Employment Programs. The questionnaire research targets, a total of 158, are used analysis on participants for Senior Employment Programs in Gwang-ju, Jeollanam-do, Jeollabuk-do, Jeju. In order to derive research result to use a SPSS Version 12.0 for Window program, and factorial analysis, reliability verification for each variable were used. Additionally, It was used to carry out hypothesis verification for Regression analysis. As a result, the study shows that the job performance is maximized by the mediation effect of job satisfaction with self-leadership and empowerment of participants on Senior Employment Programs. On the base of study result, this paper suggest for participants in Senior Employment Program to enforce method about Natural Reward Strategies, Meaning, Confidence, Impact.

• Korean Journal of Human Ecology
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• v.23 no.4
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• pp.733-742
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• 2014

Atopic dermatitis is a chronic relapsing inflammatory skin disease. In the past years, numbers of children with atopic dermatitis has increased all over the world. Objective of this study was to evaluate awareness of students in atopy-friendly elementary schools about environmentally-friendly grown agricultural products and their practice levels for dietary guidelines. This study was conducted by using a questionnaire on 116 students from three atopy-friendly schools in Jin-an, Jeong-eup, and Gwang-ju and 124 students from general elementary schools. According to the results, the numbers of children who suffer from atopic dermatitis between atopy-friendly schools and general schools were not significantly different. Among, students with atopic dermatitis, more students in atopy-friendly school, compared to general school, restricted foods. Since different school feeding services have been provided, students in atopy-friendly schools generally get more information about the environmentally-friendly agricultural products through nutrition education. However, most results did not show differences in knowledge levels and practice levels for dietary guidelines for children between students in atopy-friendly schools and general schools about environmentally-friendly produces. However, students in atopy-friendly schools less frequently eat cookies, soda drinks, or fast foods. In conclusion, appropriate program for nutrition education should be provided to elementary school students with atopic dermatitis.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.9 no.5
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• pp.1052-1058
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• 2005

This paper dealt with the design and fabrication of a low frequency electronic ballast for ruh attracting lamps. The proposed electronic ballast was composed of a full-wave rectifier, a step don converter operated as a constant power controled current source, an inverter operated by 130 Hz square wave, and an ignition circuit. An acoustic resonance phenomenon of discharge lamps could be eliminated by application of 130 Hz square wave. Also, a circuit of high voltage pulse generation for lamp ignition was added to the ballast. From the experimental results, voltage and current of the lamp operated by the electronic ballast were estimated 132.5 V and 7.6 A, respectively. and the power consumption was about 1,000 W. The weight of the ballast, which is one of important advantages, was reduced to one-fifth of conventional magnetic ballasts.

• Proceedings of the Korean Vacuum Society Conference
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• 2010.08a
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• pp.230-230
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• 2010

질화갈륨 기반의 III족-질화물 계열의 반도체 물질은 녹색-자외선 영역의 발광다이오드에 응용되어 왔으며 고효율, 고휘도 발광소자의 구현 및 성능 향상을 위해 많은 연구가 진행되었다. 일반적으로 널리 사용되어온 c축 방향으로 성장된 질화갈륨 기반 발광다이오드에서는 활성층의 에너지 밴드구조가 내부전기장에 의해 변형되어 전자와 정공의 재결합 확률이 저하된다. c축 방향으로 형성되는 내부전기장은 축방향으로의 자발적 분극화와 높은 압전 분극 현상에 기인한다. 이와 같은 분극 성장에서의 내부양자효율 저하 현상을 해결하기 위하여 내부 전기장이 존재하지 않는 a축과 m축과 같은 무분극 방향으로의 성장이 집중적으로 연구되고 있다. 현재 사파이어 기판위에서 무분극 성장된 박막은 높은 밀도의 결함이 발생하여 고품위의 발광다이오드 동작에 어려움을 겪고 있다. 최근 결함 밀도를 낮추고 높은 결정성을 갖는 무분극 질화갈륨 박막을 성장하기 위하여 2-단계 성장 방법, 나노구조층 삽입, 산화규소 마스크 패턴 등 다양한 성장 방법들이 연구되어 주목할 만한 연구 결과들이 보고되고 있다. 다양한 성장 방법들에 의해 성장된 박막들은 고유한 특성들을 보이는데, 특히 박막 성장방법에 따라 박막 내부에 형성되는 깊은 준위의 특성들은 발광다이오드의 소자 특성에도 큰 영향을 미치게 되므로 무분극 박막에서의 깊은 준위에 대한 연구가 필요하다. 본 연구에서는 금속-유기 화학기상증착 방법으로 r면의 사파이어기판 위에 a면의 질화갈륨을 성장시켰다. 고품질의 결정성을 구현하기 위해 저온 핵형성층, 3차원 성장층, 2차원 중간온도 성장층, 2차원 성장층의 4개 버퍼층을 사용하였으며, 질화규소 나노구조층을 삽입함으로써 고품 위의 a면 질화갈륨 박막을 구현하였다. 성장된 a면 질화갈륨 박막에 형성된 깊은 준위들은 접합용량과도분광법을 이용하여 분석되었으며 질화규소 삽입층의 유무에 따른 깊은 준위의 특성 차이에 대한 연구를 수행하였다.

• Korean Journal of Materials Research
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• v.9 no.8
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• pp.775-781
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• 1999

Palladium thin films of uniform and highly dense microstructure were prepared by the eletroplating method using novel PdCl$_2$-based plating bath. Principal variables taken into account in this study were the plating temperature and the current density. Electroplated Pd films were characterized for Crystalline orientation, morphology and hardness. The optimal temperature and current density were found be $50^{\circ}C$ and 5mA/$\textrm{cm}^2$, repectively. The measured hardness value for the Pd films when prepared under the optimal condition was as high as 600kg/$\textrm{mm}^2$. A correlation study between variables and properties seems to indicate that the hardness was significantly affected by the microstructure, but not by crystallite orientation.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2013.05a
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• pp.701-702
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• 2013

전국 50여개의 AI(Artificial Insemination)센터는 국내 양돈산업 인공수정 기술을 개발하고 보급하는 중추적인 역할을 수행하고 있다. 이에 반해 AI센터의 숫자 규모는 전국적으로 매우 제한되어 있어, AI센터의 운영 및 AI 기술에 대한 정보관리는 각 센터별 독자적인 운영시스템으로 관리되어 상호 정보융합을 통한 양돈산업 발전에 활용되는 사례가 매우 적다. 또한 개별 AI센터에서 관리하고 있는 소비자들의 지역분포도가 매우 폭넓어 실시간으로 수요자에 대한 판매 관리정보를 제공함에 있어 그 한계를 가지고 있다. 이에 본 논문에서는 전국의 AI센터 관리운영에 통합적이고 효율성을 지원할 수 있는 모바일 웹기반 개선된 AI PigMoS(Pig Monitoring System, PigMoS) 시스템을 제안하고 구현하였다. 본 논문에서 제안한 모바일 웹기반 개선된 AI PigMoS 시스템은 이동성, 실시간 정보서비스 등에 해당되는 시스템 모듈을 모바일 웹을 기반으로 구현하여 개별 AI센터에서 운영할 수 있게 하였다. 이에 본 논문에서는 기존의 AI PigMoS 시스템을 개선하여 재구축하였으며, 이동성, 실시간 정보서비스 등이 필요한 모듈을 중심으로 모바일 기능을 설계하고 구현하여, 원거리 소비자들에게 실시간으로 생성된 AI정보를 제공하여 AI센터의 정보관리 효율성과 경쟁력 향상을 높일 것으로 기대한다.

• The KIPS Transactions:PartC
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• v.9C no.4
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• pp.467-472
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• 2002

Recently, Networks are required to adopt the security system and security consulting because of security threats and vulnerabilities of systems. Enterprise Security Management (ESM) is a system which establishes the security zone composed of security systems and Firewalls and applies the security policy to each security system. A relevant ESM is based on the effective policy and the proper security system. Particularly, multiple firewalls in ESM are concerned with the security policy about each traffic. In this paper, we describe the problems that can be occurred when we select the firewalls to apply security policy of access control in ESM composed of multiple firewalls and propose the FALCON algorithm, which is able to select the firewalis to apply the policy. We expect that FALCON algorithm offers stability, scalability and compactness for selecting firewall set.

• The Transactions of the Korean Institute of Electrical Engineers A
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• v.51 no.6
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• pp.255-261
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• 2002

Recently, traction motors in trains are supplied with single phase a.c. power. After this power is converted to d.c. power, it is inverted to three phase power to operate traction motors. As going through the process of the conversion, harmonic current is generated in train. The method of conventional analysis on harmonics, studied by RTRI, is modeled with equivalent circuit of ac AT-fed electric railroad system using by the distributed constant circuit. However, this circuit as two-port network model has some difference in comparison with real system. The reason why the conventional method is different from the real system is that the conventional method dose not include three conductor groups, that is catenary, rail, and feeder, and admittance between the conductors for line capacitance. Therefore, this method has a little error. This paper proposes new method to more effectively estimate Harmonic current. In this method, numerous components in electric railway are categorized and each component is defined as a four- port network model. The equivalent circuit for the entire power supply system is also described into a four-port network model with connections of these components. In order to evaluate the efficiency and the accuracy of a proposed method, it is compared with values measured in Kyung-Bu high speed line and ones calculated by the conventional method.

• Journal of Digital Convergence
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• v.15 no.3
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• pp.165-173
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• 2017

The purpose of this study was to identify the causal relationship between the brand, the brand equity and brand equity of a tourist destination. The effect of love mark on self identification is that the relationship between love mark performance and self-identification time is significant, and that of love mark is in the order of self identification. Trust mark of love mark has a significant relationship with self identification. The relationship between brand intimacy and brand quality and the relationship between trust and brand quality were significant in relation to the brand mark, but brand mark was not significant. In addition, in the relationship between brand value and love-mark, there is a significant relationship between performance and brand value, relationship between intimacy and brand value, and performance is not significant in brand value. There was a significant relationship between gender and behavioral intention. The relationship between gender identity and behavioral intention was positively related to brand equity.

• Journal of the Korean Society of Clothing and Textiles
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• v.32 no.1
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• pp.123-133
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• 2008

The purpose of this study is to analyze dissatisfaction and size appropriateness of the women with big breast for design the high functional big size brassiere. The data were collected from 179 women(between the ages of 20 and 39) residing in Gwang-ju using a questionnaire to purchase, wearing comfort, dissatisfaction of the size, wire and the pad of the big size brassiere. The data were analyzed with Chi-square test, t-test and ANOVA using statistical program SPSS 12.0. The results of this research are as follows; 1) Seven-two-point-two percent of the women with big breast more than C cup size polled said they had difficulty in looking for the suitable size of the brassiere and they usually weared the smaller size than the their own size. As a result, they felt inconvenience for the discord with the nipples and lack of the shape revision. 2) According to the result of the correlation analysis, breast size and Rohrer's index showed low correlation. 3) After dividing all respondents for this research into categories of the group of more than C cup and less than B cup the differences in responses were compared. The dissatisfaction with brassier were 'discord of cup size', 'pain due to the wire' and 'unnatural breast shape' in the group of more than C cup, compared to 'discord of cup size' and 'deformation of the wire and pad' in the group of less than B cup.