• Journal of the Korean BIBLIA Society for library and Information Science
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• v.26 no.1
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• pp.101-134
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• 2015

The purpose of this study is to propose established factors and a model of collection development policies for the libraries of theological universities in Korea. To achieve purpose of the study, we analyzed of elements and details of collection development policies at libraries of theological universities in overseas. The study then conducted a survey to understand the current status of collection development policies at libraries of theological universities in Korea. Based on the above results, reflecting both the external and the internal factors, the investigator presented a model of collection development policies by identifying seven elements that should be included when developing the policy: prefaces, collection selection, collection gathering, budget, collection maintenance, mutual cooperation and intellectual freedom, and revision of collection development policies.

• Journal of Korean Society of Steel Construction
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• v.22 no.2
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• pp.161-171
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• 2010

Bridges have undergone distinctive development in accordance of the introduction of new materials and structural types. The importance on rapid construction technology is currently attracting more and more attention worldwidely as well as domestically because its effectiveness in reducing the overall construction cost. While a wide ranges of previous researches on rapid construction of super structures are available, the studies on substructures are quite limited. The development of the precast segmental internally confined hollow CFT piers are briefly introduced herein and design formulas are presented for pier segment joints, Also, a extensive parametric studies are carried out for the effect of the constitutive elements of the joints. Finally, the design formulas are verified throughout a series of extensive finite element analyses.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.38C no.9
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• pp.733-739
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• 2013

Recently mobile service industry has grown very rapidly. In this paper, I investigated the changes in mobile service industry as well as new direction of human life in future global society. Under these changing market conditions, competition has been also changed into global and ecological competition. But compared to the platform initiatives and ecological strategies of global companies, Korean companies' vision of building ecosystems is still unclear. New directions of mobile service industry are smart phone oriented open market, UCC, QPS and cloud computing. As such, I investigate the structure of mobile service ecosystem in order to gain strategic implications and insights in this paper.

• Proceedings of the Korea Water Resources Association Conference
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• 2018.05a
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• pp.127-127
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• 2018

우리나라 자연수역의 수질이 산업활동으로 배출된 오 폐수와 토지 및 가축에의한 하천오염의 심각성 및 보존에 대한 문제가 많은 관심을 받고 있다. 따라서 하천의 수질모델링에 관한 연구가 국내외적으로 진행되고 있다. 황강은 합천댐하류에서 낙동강 본류로 합류될 때까지에 해당하며 황강유역은 각 소하천에서의 유입되는 오염원과 임야 및 농촌지역으로서 각 시기에 발생하는 비점 오염원의 관리가 필요하다. 하천의 수질 모델링은 해당 수계의 오염부하량, 유출량 등 환경요인의 변화에 이에 따른 하천수질 목표지점의 수질변화를 모의함으로써 합리적 접근방법으로 효과적인 수질관리가 가능하도록 만들어준다. QUAL계열 모델 은 수질항목, 수역 특성, 기타 기초 자료의 제공여건 등을 고려하고 있다. 본 연구에서는 이러한 변화 요소와 기여 특성을 반영한 모의와 해석이 최적화된 QUAL-MEV 모델을 이용하였다. 수질개선방안 시나리오에서는 기존의 수질모델링 연구에 데이터 분석을 포함하여 각 인자간의 연관성 및 영향관계를 파악하고 수질개선방안에 있어 원인을 찾아보고자 한다. 부하량위주의 기존 시나리오 구성과 데이터분석 기반의 시나리오를 비교 분석하여 각 시나리오의 장 단점을 비교하여 유역맞춤형 관리방안을 모색하고자 한다.

• Proceedings of the Korea Water Resources Association Conference
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• 2019.05a
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• pp.143-143
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• 2019

우리나라 자연수역의 수질이 산업활동으로 배출된 오 폐수와 토지 및 가축에의한 하천오염의 심각성 및 보존에 대한 문제가 많은 관심을 받고 있다. 따라서 하천의 수질모델링에 관한 연구가 국내외적으로 진행되고 있다. 하천은 각기다른 특성을 가지고 있는데 데이터 분석을 통하여 유역특성을 연구하고자한다. 황강과 금호강은 낙동강 본류에 큰 영향을 미치는 지류이다. 두 개의 하천은 상류에 댐이 있다는 공통점이 있지만 각각의 유역특성을 가지고 있으며 특성에 따른 수질개선방안이 필요하다고 판단된다. 하천의 수질 모델링은 해당 수계의 오염부하량, 유출량 등 환경요인의 변화에 이에 따른 하천수질 목표지점의 수질변화를 모의함으로써 합리적 접근방법으로 효과적인 수질관리가 가능하도록 만들어준다. QUAL계열 모델 은 수질항목, 수역 특성, 기타 기초 자료의 제공여건 등을 고려하고 있다. 본 연구에서는 이러한 변화 요소와 기여 특성을 반영한 모의와 해석이 최적화된 QUAL-MEV 모델을 이용하였다. 수질개선방안 시나리오에서는 기존의 수질모델링 연구에 데이터 분석을 포함하여 각 인자간의 연관성 및 영향관계를 파악하고 수질개선방안에 있어 원인을 찾아보고자 한다. 부하량위주의 기존 시나리오 구성과 데이터분석 기반의 시나리오를 비교 분석하여 각 시나리오의 장 단점을 비교하여 유역맞춤형 관리방안을 모색하고자 한다.

• Culinary science and hospitality research
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• v.18 no.4
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• pp.166-182
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• 2012

The purpose of this study is to examine the influence of LOHAS images of Japanese restaurants on customers' menu selection and satisfaction to provide useful information on proposing detailed marketing directions by deriving the importance and satisfaction factors of LOHAS images and to suggest practical and effective measures for using LOHAS images to improve menus at Japanese restaurants. The results of the study are as follows. First, as a result of examining hypothesis 1, "LOHAS images will influence essential factors," it was found that healthy ingredient, family-oriented, eco-friendly, sustainability, and energy-saving factors were influential. With greater family-oriented, sustainability, healthy ingredient, and eco-friendly factors in LOHAS image, interests in essential factors increased. Second, family-oriented, energy-saving, social-oriented, and sustainability factors in LOHAS image had a significantly positive impact on the environmental factors of menu. Third, eco-friendly, sustainability, family-oriented, energy-saving, healthy preparation, and healthy ingredient factors in LOHAS image had a significantly positive impact on customer satisfaction. Fourth, essential factors in the selection attributes of Japanese restaurant menu had a significantly positive impact on customer satisfaction. Fifth, environmental factors in Japanese restaurants had a significantly positive impact on customer satisfaction. The significance and limitation of this study are: first, Japanese restaurants would be able to build a better image with customers by providing menu items that are family-oriented, sustainable, and energy-saving. Second, it would be necessary to study how LOHAS factors influence customers' general purchase decisions and psychological factors.

• Journal of Korean Society of Transportation
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• v.22 no.3 s.74
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• pp.109-125
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• 2004

In recent decades, microscopic simulation models have become powerful tools to analyze traffic flow on highways and to assist the investigation of level of service. The existing microscopic simulation models simulate an individual vehicle's speed based on a constant free-flow speed dominantly specified by users and driver's behavior models reflecting vehicle interactions, such as car following and lane changing. They set a single free-flow speed for a single vehicle on a given link and neglect to consider the effects of highway design elements to it in their internal simulation. Due to this, the existing models are limitted to provide with identical simulation results on both curved and tangent sections of highways. This paper presents a model developed to estimate the change of free-flow speeds based on highway design elements. Nine neural network models were trained based on the field data collected from seven different freeway curve sections and three different locations at each section to capture the percent changes of free-flow speeds: 100 m upstream of the point of curve (PC) and the middle of the curve. The model employing seven highway design elements as its input variables was selected as the best : radius of curve, length of curve, superelevation, the number of lanes, grade variations, and the approaching free-flow speed on 100 m upstream of PC. Tests showed that the free-flow speeds estimated by the proposed model were statistically identical to the ones from the field at 95% confidence level at each three different locations described above. The root mean square errors at the starting and the middle of curve section were 6.68 and 10.06, and the R-squares at these points were 0.77 and 0.65, respectively. It was concluded from the study that the proposed model would be one of the potential tools introducing the effects of highway design elements to free-flow speeds in simulation.

• Journal of The Korean Association For Science Education
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• v.33 no.7
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• pp.1431-1449
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• 2013

This study is based on the assertion that science museums should consider visitors' views and expectations as they are not satisfied in many cases. In this study, we investigated 31 scientifically gifted students and 177 science high school students about their image of science museums. Using the questionnaire, it was found that only 51% of students visited science museums; however, the average number of visits was 4.2. This means that students tended to re-visit after the first visit of the science museum. Students had a 'good' image of science museums when they incurred hands-on experiences and observed new, interesting, curious and funny exhibits. And students had a 'bad' image of science museums due to the following aspects: lack of new and interesting exhibits, information and guide, diverse contents, and hands-on experience; deficiencies in environment; and inadequacy of the management, operation and composition of exhibits. Therefore, they hoped that science museums will provide more hands-on experiences and experiments, new and interesting exhibits, systematic management and composition of exhibits, information and guides, and a good environment. So science museums need to pay special attention to aspects like management, information guides and environment for the first-time visitors. Based on the above results, we suggested "Directions for a good science museum based on students' views". While asking students what topics they wanted to know and learn in a science museum, each student was given the choice of four topics; eventually, 2.9 answers overlapped for each topic. When classifying students' topics into four main themes for the Gwangju National Science Museum, the order from the most popular theme to the least one was 'science in everyday life', 'ocean/space/future science', 'light and science', and 'culture, art and science'. Among the topics mentioned by students, only 37% are exhibited in Seoul, Gwacheon, Daejeon, or Gwangju science museums. We hope that the results and research methods will be used for evaluation, re-construction, and reinvigorated presentation of science museums.

• The Journal of the Korea Contents Association
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• v.20 no.3
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• pp.635-644
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• 2020

This paper examines the types and functions of politeness in German communication and how politeness strategy can be realized. 'Politeness' is not a grammatical terminology in German, but it can be found in many places in grammar. The criteria for politeness are not only organized according to the rules of the language system, but the boundaries are ambiguous because non-language factors affect communication. Politeness is an important strategic element as well as social value. The polite expression first appears in the grammatical level of invariant with the form of address according to the familiarity between the conversational parties, verb modus, and modal particle. Modal particle with familiarity is considered to be a positive politeness strategy that limits the listener's speech by weakening or avoiding face threatening act. Modal verbs is classified as polite expressions that do not impose a psychological burden by not forcing the listener to make a direct request. The results of this study are therefore expected to suggest a rationale for empirical research on politeness in German communication.

• The Journal of the Acoustical Society of Korea
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• v.31 no.5
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• pp.288-297
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• 2012

This study proposes a design model of the variable type resonator which corrects the temperature variance according to the season, in order to maximize the resonance effect in the Sacred bell of the Great King Seongdeok. In the bell, the 1st natural frequency (64 Hz) and the 2nd natural frequency (168 Hz) are the most important partial tones. Resonance conditions of the two components are determined for the internal acoustic cavity system, which consists of bell body cavity, gap and the resonator. Acoustic frequency response characteristics of the internal cavity are determined by the boundary element analysis using SYSNOISE. As an external factor, temperature variance according to the season largely influences the resonance condition and the length of the resonator should be controlled to maximize the resonance effect. As a measure, this study proposes a design model of the variable type resonator for the Sacred Bell of the Great King Seongdeok, which can control the length at the belfry according to the season.