• International Journal of Naval Architecture and Ocean Engineering
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• 제13권1호
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• pp.340-350
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• 2021

This paper proposes a decision support model for USVs to improve the accuracy of collision avoidance decision-making. It is formed by Navigation Safety Domain (NSD) and domain-based Collision Risk Index (CRI), capable of determining the collision stage and risk between multiple ships. The NSD is composed of a warning domain and a forbidden domain, which is constructed under the constraints of COLREGs (International Regulations for Preventing Collisions at Sea). The proposed domain based CRI takes the radius of NSD in various encounter situations as threshold parameters. It is found that the value of collision risk in any directions can be calculated, including actual value and risk threshold. A catamaran USV and 6 given vessels are taken as study objects to validate the proposed model. It is found that the judgment of collision stage is accurate and the azimuth range of risk exists can be detected, hence the ships can take direct and effective collision avoidance measures. According to the relation between the actual value of CRI and risk threshold, the decision support rules are summarized, and the specific terms of COLREGs to be followed in each encounter situation are given.

• 아태비즈니스연구
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• 제14권4호
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• pp.129-150
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• 2023

Purpose - This study is based on the Theory of Planned Behavior and aims to explore the decision-making mechanisms of consumers participating in value co-creation activities within virtual brand communities. Methodology - The research involved a comprehensive survey of 405 participants from various virtual brand communities. Structural Equation Modeling (SEM) was used for data analysis, applying SPSS and AMOS to test the hypotheses. The study focused on community rules and regulations, community experience and community trust. Results - The research found that community rules and regulations significantly impact subjective norms and perceived behavioral control, but not directly influence consumer attitudes. Community experience positively affected consumer attitudes, subjective norms and perceived behavioral control. Community trust was found to positively influence these aspects of consumer decision-making. However, a gap was identified in the direct influence of perceived behavioral control on actual consumer behavior. Implications - The findings of this study contribute to a more comprehensive understanding of factors affecting consumer behavior in virtual brand communities. It underscores the necessity for community managers to develop strategies that consider these internal decision-making mechanisms, facilitating more effective community engagement. The study also identifies a potential area for future research in the direct influence of perceived behavioral control on actual consumer behavior.

• 복식문화연구
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• 제18권4호
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• pp.774-788
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• 2010

This research is to understand luxury consumption values for luxury consumers. The aims of this study is to identify their luxury consumption values and the effects of the values on the perceived acquisition value. This study also divided data into two groups according to the difference between reservation price and actual price; positive reservation price group, negative reservation price group, and analyzed the effects of the values on the perceived acquisition value between two groups. In this study, we used structural models equation and results presented that the conceptual model was a good fit to the data. The empirical results suggested four dimensions of luxury consumption values; symbolic value, innovative design value, quality value and origin value. There were positively significant effects of symbolic value and quality value on the perceived acquisition value. The effects of innovative design value on the acquisition value was significantly negative. Two groups categorized by reservation price depicted the differences on effect levels of symbolic value, innovative design value, and quality value on the acquisition value perception.

• 임상간호연구
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• 제23권2호
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• pp.236-247
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• 2017

Purpose: This study was to present improvement strategy and the problems of the nursing fee in national health insurance system. Methods: A total of 23 nursing activities performed by nurses were selected. Data were collected the relative value score and criteria of the Health Insurance Review & Assessment Agency. Sixty clinical nursing experts panels were composed and nursing time surveyed self-reported method. The actual fee was calculated through the nursing time, relative value score and actual labor costs. Nextly, the labor costs analyzed was compared with that in the national health insurance. Results: Although the practices were mainly performed by the nurse, other occupations have been recorded as main practitioners and the time of the nursing activity is partially improperly reflected. Additionally, although the nurse practiced mainly in glucose (semi-quantitative) test, it was confirmed that the principal practitioner was described as a clinical pathologist. The the labor cost gap was estimated that is 9.3 times (median) and 11.9 times (average) in this analysis. Conclusion: This study suggests that it is necessary to legislate a policy that can improve the quality of clinical nursing by reinforcing the appropriateness and improving nursing fee through reflection of the actual time spent for nursing care.

• 한국산림과학회지
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• 제83권4호
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• pp.540-544
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• 1994

중부 지방에서 옥내의 목재 사용 4장소별로 기후치평형함수율은 온도와 상대습도를 근거하여 계산하고 실측평형함수율은 더그러스 퍼와 상수리나무 등 7수종의 기건 시험편을 1년간 공시하여 측정하였다. 조사된 각 장소의 연간 평균 온도과 상대습도는 아파트 안방이 $23.3^{\circ}C$와 54.9%, 아파트 거실은 $22.4^{\circ}C$와 59.5%, 사무실은 $20.1^{\circ}C$와 57.0%, 단독주택의 거실은 $19.4^{\circ}C$와 64.0%이었다. 년간 평균 기후치평형함수율과 실측평형함수율은 아파트 안방은 각각 10.2%와 9.7%, 아파트 거실은 각각 11.1%와 10.2%, 사무실은 각각 10.7%와 10.4% 그리고 단독주택의 거실은 각각 12.1%와 12.5%이었다. 카사이의 실측평형함수율은 전체 평균치보다 약간 컸었고 버즘나무와 아피통은 약간 적었다.

• 한국문헌정보학회지
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• 제22권
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• pp.29-82
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• 1992

The goal of the public library as perceived by its staff has asignificant influence on establishing, implementing and restructuring the objectives of the public library. Therefore, it is necessary to analyze the nature of staff's perception of the goal. The goals of the library are divided into 'actual goal' and 'preferred goal' according to the level of goals, and into 'aoutput goal' a and 'asupport goal'a according to the areas of goals. This study aims at clarifying the relationship among various goals of the public library. On the basis of staff's perception, personal characteristics of individual staff and their effects on the goal can be analyzed. For the purpose of the research, the author took a sample from the 238 public libraries in Korea and tested a few hypotheses extracted from the questionnaires. A statistical software package called SYSTAT was used to process the data. The result of the study can be summarized as follows: 1. Staff members of the public libraries tend to place a higher priority on support goal with instrumental value over output goal, the terminal value of the public library. This is tantamount to a displacement of goals. 2. Personal characteristics such as the age and the length of work experience appear to influence their present perception of actual goal at large. On the other hand, the formal qualification as librarian and special features regarding the job hierarchy seem to affect the areas of support goal within the actual goal. 3. Perception of preferred goal is affected mainly by formal qualification as librarian among their personal characteristics. 4. There is a significant difference between the staff's perception of actual and preferred goals in the large. Goal discrepancy which indicates the expectation of change and the degree of conflict in goals is very large as well.

• Journal of Korea Trade
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• 제26권2호
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• pp.65-83
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• 2022

Purpose - The purpose of this study is to evaluate the economic effects of FTAs using the concept of value-added exports. So far, the economic effects of FTAs have been dependent on decrease in import prices due to tariff cuts in importing countries, but the actual tariff reduction need to consider the value added of the exporting countries. Design/methodology - Value-added export refers to the added value created in the exporting country out of total exports. Among value-added exports, direct value-added export is interpreted as the Regional Value Contents (RVC), from which the economic effect of the FTA can be analyzed. A modified GTAP-VA model takes into account RVC in order to estimate accurate effects of FTAs. Findings - By the re-evaluation of the FTA based on the RVC, this paper makes it clear that the economic effects of the existing FTA methodology have the possibility of overestimation. In addition, as a new FTA with a strengthened Rules of Origin (ROO) is being initiated, a negative impact on international trade and GVC utilization may occur. Originality/value - This study introduces the concept of value-added export in analyzing the effects of FTAs. The new analysis methodology of this paper emphasizes the importance of value-added exports. Re-organization of GVCs would change regional trade agreements and empower ROO by weakening existing GVCs and transforming the value chain from global into regional scope.

• 한국항만경제학회지
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• 제28권4호
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• pp.121-147
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• 2012

스마트폰의 급속한 보급은 개인의 생활뿐만 아니라 기업의 업무에도 많은 영향을 미치고 있다. 기업 구성원들은 스마트폰과 같은 모바일 기기를 이용해서 업무를 수행하고 있고, 기업 간 정보공유를 통한 협업을 하고 있다. 이에 따라 기업들은 스마트폰에서 사용할 수 있는 업무용 모바일 애플리케이션을 개발하여 사용하고 있으며, 특히 해운물류분야에서 화물을 추적하고 가시성을 제공하기 위하여 해운물류 모바일 애플리케이션을 개발하여 사용하고 있다. 본 연구에서는 국내 해운물류업계에서 개발, 사용되고 있는 해운물류 모바일 애플리케이션들을 실제로 사용하는 해운물류종사자들의 사용의도와 실제 사용에 영향을 미치는 요인에 대하여 알아보기 위하여 설문조사를 통한 실증분석을 하였다. 연구변수로는 모바일 애플리케이션의 사용의도에 영향을 미치는 요인으로 사회적 영향, 혁신성, 지각된 가치, 기업 간 협업 등을 사용하였다. 또한 사용의도와 실제 사용간의 관계를 규명하기 위하여 모바일 애플리케이션의 실제 사용 측정도구로는 접속 빈도와 접속 시간을 사용하였다. 총 168부의 설문이 가설검정에 사용되었다. 분석결과를 살펴보면 다음과 같다. 첫째, 사회적 영향, 혁신성, 지각된 가치 등의 3가지 변수들은 해운물류 모바일 애플리케이션의 사용의도에 정의 영향을 미치는 것으로 확인되었다. 반면 기업 간 협업은 사용의도에 영향을 미치지 않는 것으로 나타났다. 둘째, 해운물류 모바일 애플리케이션의 사용의도는 실제 사용에 영향을 미치는 것으로 확인되었다.

• 한국재난정보학회 논문집
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• 제17권4호
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• pp.786-793
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• 2021

연구목적: 실트질 함유가 높으며 다양한 응력이력 때문에 침하량 예측에 어려움이 있는 우리나라의 서해안 중부지역의 연약점토지반의 침하량 특성을 분석하기 위하여 실험을 실시하였다. 연구방법: 3개의 경우에 대한 현장실험을 실시하였다. 각각의 경우에 대하여 침하판 침하량을 계측하였으며 Terzaghi의 일차원 압밀침하량, 쌍곡선법(hyperbolic method)과 Asaoka법을 모두 분석하여 실무에 유용한 결론을 도출하였다. 연구결과: Terzaghi에 의한 예측값이 모든 경우에서 가장 큰 것으로 분석되었으며 침하판 침하값에 비하여 111%~187%로 크게 예측하였다. 즉, 실제 지반의 침하량인 침하판 침하값이 Terzaghi의 예측값에 비하여 53.4~89.9% 의 침하를 나타내었다. 따라서, 우리나라 중부 서해안 점토질 연약지반에서 Terzaghi방법에 의한 예상침하량은 실제 침하량보다 과다하게 예상하는 것으로 분석되었다. 결론: Asaoka방법과 쌍곡선 방법은 비교적 유사한 결과를 제시한 것으로 분석되었으며, 실무에서는 실제 침하량 보다 작게 침하량을 예측할 경우 위험을 초래할 수 있으므로 실제 침하량보다 6~14% 크게 예측한 쌍곡선 분석법이 안전측으로 사용될 수 있을 것으로 판단된다.

• 한국조리학회지
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• 제13권2호
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• pp.110-122
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• 2007

The purpose of this study was to evaluate the effects of perceived value on the satisfaction and revisit intention of green tea farm visitors. The sample was obtained during the three month period from May 19th, 2006 to May 21st, 2006, and out of 800 copies of questionnaire, 597 copies responded with sincerity were analyzed. First, the perceived value of visitors in green tea farms seemed to have effective relations with satisfaction. Second, the perceived value of visitors in green tea farms seemed to have effective relations with revisit intention. Empirical evidence is obtained for both regional economy and industry and the development of tourism products. Specially, findings from this study suggest that perceived value are strong predictors of revisit intention to green tea farms in Hadong-gun. Several implications for the research result and actual application practices are discussed.