• 농촌지도와개발
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• 제16권4호
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• pp.1021-1048
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• 2009

Based on Rural living indicator -2005 survey data, in RDA this study attempted to investigate Rural Residents' real life satisfaction or identity model by the types of leisure consumption depending on each generation and explored the relationship between leisure consumption and the enhancement of self-identity/ interpersonal relationship, and that between leisure consumption satisfaction and real life satisfaction. Based on systematic random sampling with constructed questionnaires, 1,870 data were collected and analyzed. Overall, the results of this study showed that there are statistically significant differences between generation in leisure consumption. In detail, the findings of this study are as follows. The types of Rural Residents' leisure consumption can be divided into three styles including Semi-leisure type, Passive leisure type and Total leisure type consumption. The preferred types of leisure consumption of Rural Residents' were Semi-leisure type, Passive leisure type and Total leisure type in order. Except for times-pending leisure culture consumption, Semi-leisure type and Passive leisure type influenced on the enhancement of self-identity and interpersonal relationship, then the enhancement of self-identity and interpersonal relationship influenced on leisure consumption-satisfaction, and finally leisure consumption satisfaction influenced on real life satisfaction.

• 상하수도학회지
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• 제24권3호
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• pp.277-285
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• 2010

We examined the optimal shape of blades and efficiency of a self-power generator when the self-power generator using flow of the water in pipe as the power source was installed. Selected factors were the shape of blades, the number of blades, pitch angle, and the existence of separator. GAMBIT2.4 was used as a modeling program, FLUENT6.3, which is computational fluid dynamics simulation program, was used as an analytical model. In the case of a viscous model, k-epsilon standard model was chosen. As a result, when the number of blades was increased, the efficiency and maximum moment were enhanced slightly. The pitch of blades went up, and maximum moment was also increased. The optimal pitch of blade was 62.5 degree and the efficiency was increased by 30%. The efficiency was also increased when a separator was installed.

• 동양고전연구
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• 제49호
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• pp.393-430
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• 2012

이 논문에서는 보웬의 가족치료 이론의 관점에서 삼대록계 국문 장편소설의 서사를 분석하였다. 보웬은 가족 내에서 문제를 일으키는 개인의 행동을 설명함에 있어 자기분화와 불안이라는 두 변인을 사용하였는데 이들 작품에서 문제나 갈등이 표출된 가정의 경우, 문제의 중심에 자아 미분화된 인물이 존재하였다. 자아가 미분화된 인물들은 적장자 위주의 가족 관계에서 소외될 때 극도로 불안감을 느꼈으며, 불안을 해소하고 가족 관계에서 자신의 입지를 확고히 하기 위해 자아 미분화된 인물들끼리 연대의식을 강하게 발휘하였다. "소현성록"과 "조씨삼대록" 연작의 가정 내 문제 발생의 구조와 양상은, '자아 미분화된 어머니와 자아 분화된 아들, 자아 분화된 어머니와 자아 미분화된 아들, 자아 미분화된 어머니와 자아 미분화된 아들'로 세분화할 수 있다. 서사 전개 방식에 있어 이들 간의 공생 관계 성립과 미성립, 치료자의 존재 양상 등이 달랐으며, 그에 따라 자결하는 아들, 처형당하는 아들, 회개를 통해 거듭나는 아들로 나뉘어졌다. 서술상의 전개나 구조는 무엇보다 치료자 존재 유무에 따라 달라졌다. 자아 미분화된 어머니와 자아 미분화된 아들의 경우, 가족 내에 치료자가 존재함으로써 가족문제는 해결되고, 문제를 일으킨 아들은 회개하여 거듭나는 아들이 된다. 그러나 자아 미분화된 어머니와 자아 분화된 아들, 자아 분화된 어머니와 자아 미분화된 아들은 가정 내 치료자 부재로 각각 아들이 자결하고 처형되는 비극이 빚어졌다. 이처럼 보웬의 가족 치료 이론을 적용하여 삼대록계 국문 장편소설을 분석했을 때 가정에서 발생한 갈등이나 문제에 대해 개인의 차원이 아니라 가족 간의 관계 차원에서 조망이 가능하였다. 즉 가정 내의 심각한 갈등과 문제는 어느 한 개인의 인성이나 욕망이 아니라 가족 제도 자체에 근본 원인이 있었다. 그리고 가족 치료자의 유무에 따라 서사의 전개 양상이 크게 달라졌는데 그의 역할에 따라 나머지 가족의 안위와 평화 여부가 결정됨으로써 삼대록계 국문 장편소설에서 남성의 수신은 중요한 서사축을 형성하고 있음도 알 수 있었다. 이처럼 삼대록계 국문 장편소설 속의 문제 상황을 한 개인의 욕망 혹은 인성에 국한하지 않고 가족 전체의 차원에서 살피고 심리학적 외재적 접근을 통하여 삼대록계 국문 장편소설의 주요 서사인 여성수난담의 배경에 대해 접근한 것에 의의를 두고자 한다.

• Journal of Power Electronics
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• 제15권5호
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• pp.1305-1317
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• 2015

Distributed generation systems (DGSs) have been getting more and more attention in terms of renewable energy use and new generation technologies in the past decades. The self-excited induction generator (SEIG) occupies an important role in the area of energy conversion due to its low cost, robustness and simple control. Unlike synchronous generators, the SEIG has to absorb capacitive reactive power from the outer device aiming to stabilize the terminal voltage at load changes. This paper presents a novel static VAR compensator (SVC) called a magnetic energy recovery switch (MERS) to serve as a voltage controller in SEIG powered DGSs. In addition, many small scale SEIGs, instead of a single large one, are applied and devoted to promote the generation efficiency. To begin with, an expandable mathematic model based on a d-q equivalent circuit is created for parallel SEIGs. The control method of the MERS is further improved with the objective of broadening its operating range and restraining current harmonics by parameter optimization. A hybrid control strategy is developed by taking both of the stand-alone and grid-connected modes into consideration. Then simulation and experiments are carried out in the case of single and double SEIG(s) generation. Finally, the measurement results verify that the proposed DGS with SVC-MERS achieves a better stability and higher feasibility. The major advantages of the mentioned variable reactive power supplier, when compared to the STATCOM, include the adoption of a small DC capacitor, line frequency switching, simple control and less loss.

• 한국지능시스템학회논문지
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• 제25권1호
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• pp.63-69
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• 2015

웹의 비구조 문서로부터 자동으로 인스턴스를 생성하기 위한 다양한 연구가 제안되었다. 영어권의 기존 연구들에서는 간단한 규칙과 정규식 기반의 패턴을 활용하였다. 영어에서는 단순한 정규식 기반의 패턴만으로도 충분히 높은 정확도를 보여주었지만. 한국어는 영어와 다른 언어적인 특성으로 인하여 기존의 정규식 형태의 패턴으로는 적합한 패턴을 생성할 수 없다. 이에 본 논문에서는 한국어에 적합한 패턴 및 인스턴스 생성 방법을 제안한다. 제안한 방법은 대상 문장의 의존 관계를 고려함으로써 높은 정확도를 가지는 패턴 집합을 생성한다. 또한 인스턴스의 주어(subject)와 목적어(object) 판별을 위하여 조사 정보를 함께 활용함으로써 한국어의 자유로운 어순으로부터 오는 제약을 해결한다. 실험 결과에 따르면 본 논문에서 제안한 패턴 생성 방법이 단순 어순만을 고려하여 생성된 패턴들에 비하여 더 높은 정확률을 보여주어, 한국어 대상 자동 인스턴스 생성에 적합함을 확인하였다.

• 한국의류산업학회지
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• 제10권4호
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• pp.526-536
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• 2008

This study is to analyze and examine the relations of lifestyle, fashion behavior, and make-up behavior of post digital generation and to provide the basic data which help to establish and perform the distinctive marketing strategies targeting the post digital generation. Subjects were 1,460 male and female undergraduates who attend colleges or universities in Seoul, Busan, and Daegu. Average, standard deviation, MANOVA, and ANOVA were conducted using SPSS 12.0 statistic program. The results were as follows: The higher points the group got in all the subfactors regarding information seeking pursuit and sensation intention fascination pursuit, the higher points the group had in the subfactors of fashion behavior and make-up behavior. The group with higher fashionenjoyment pursuit appeared to seek after more brand price choice behavior, internet shopping purchasing behavior, fashion information source seeking behavior, and impulse buying behavior in the subfactors of fashion behavior as well as more self-satisfaction appearance orientation and fashion information buying orientation in the subfactors of make-up behavior. With the group in pursuit of more multi activities, not only were brand price choice behavior and fashion information source seeking behavior in the subfactors of fashion behavior sought after more, but self-satisfaction appearance orientation and fashion information buying orientation in the subfactors of make-up behavior were pursued more as well. The more interpersonal relations the group had, the more self-satisfaction appearance orientation and fashion information buying orientation in the subfactors of make-up behavior as well as the more brand price choice behavior, fashion information source seeking behavior, impulse buying behavior, other-regarding behavior and independent buying behavior in the subfactors of fashion behavior the group had.

• Journal of Information Technology Applications and Management
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• 제20권1호
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• pp.53-66
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• 2013

Social reason was mostly the motivation for using Facebook among Generation Y, but results on Generation X were still inconclusive due to limited studies. By using content analysis of 93 participants' written statements gathered on April to May 2012, this study compared motivations among Facebookers from two generations. The study finds that Generation X and Y shared similar motivations. The majority of both generations use Facebook to keep in touch with their friends, as well as to seek updated information. A smaller number use Facebook for entertainment, online business, and self-expression. In addition, participants were willing to continue using Facebook in the future despite the fact that they had Twitter accounts.

• 한국수소및신에너지학회논문집
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• 제20권5호
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• pp.384-389
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• 2009

KEPRI (Korea Electric Power Research Institute) has studied planar type solid oxide fuel cell (SOFC) stacks using anode-supported cells and kW class co-generation systems for residential power generation. In this work, a 1 kW SOFC system consisted of a hot box part, a cold BOP (balance of plant) part, and a hot water reservoir. The hot box part contained a SOFC stack made up of 48 cells, a fuel reformer, a catalytic combustor, and heat exchangers. Thermal management and insulation system were especially designed for self-sustainable operation in that system. A cold BOP part was composed of blowers, pumps, a water trap, and system control units. When the 1 kW SOFC stack was tested using hydrogen at $750^{\circ}C$, the stack power was about $1.2\;kW_e$ at 30 A and $1.6\;kW_e$ at 50 A. Turning off an electric furnace, the SOFC system was operated using hydrogen and city gas without any external heat source. Under self-sustainable operation conditions, the stack power was about $1.3\;kW_e$ with hydrogen and $1.2\;kW_e$ with city gas respectively. The system also recuperated heat of about $1.1\;kW_{th}$ by making hot water.

• 전자공학회논문지B
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• 제29B권9호
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• pp.1-7
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• 1992

This paper proposes a built-in self-test tchnique for CMOS circuits. To detect a stuck-open fault in CMOS circuits, two consequent test patterns is required. The ordered pairs of test patterns for stuck-open faults are generated by feedback shift registers of extended length. A nonlinear feedback shift register is designed by the merging method and reordering algorithms of test patterns proposed in this paper. And a new multifunctional BILBO (Built-In Logic Block Observer) is designed to perform both test pattern generation and signature analysis efficiently.

• 한국광학회:학술대회논문집
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• 한국광학회 1989년도 제4회 파동 및 레이저 학술발표회 4th Conference on Waves and lasers 논문집 - 한국광학회
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• pp.107-112
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• 1989

We observe experimentally self-pulsing, subharmonic generation, spectral bistability, and chaos in a stable laser diode with delayed optoelectronic feed-back. The laser diode emits 200 ps optical pulses with 1.1 GHz repetition rate in the self-pulsing region. The bistable region critically depends on the closed loop gain of the system. We also explain observed experimental result.