• 반도체디스플레이기술학회지
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• 제20권2호
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• pp.14-18
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• 2021

Electric Vehicle industry requires high technologies to stabilize apparatuses for the Coolant heater manufacturing. Vibrations of Leak Machine are one of the most critical factors for causing delivered of the defective product or poor inspection, which are the main reasons of the defects. In this study, the structure of the Leak Machine was analyzed through the experiment and the computer simulation to investigate the main reasons of the vibrations, and further to alter the design for the improved stability. And that design alterations were applied to the machine to identify the effects of those alterations. The result of the study shows that design alterations of the Leak Machine can effectively suppress about 97.8% of the vibrations, and further can improving the Inspection precision of the Coolant heater.

• Journal of Public Diplomacy
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• 제2권1호
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• pp.28-42
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• 2022

The aim of this article is to rethink the role of international trade as a public diplomacy tool by considering the uncertainties that stem from political tensions. The main contribution made in this article is theoretical rather than statistical. However, we analyze trade and public opinion data to study the relationship between both factors. Using Latinobarometer, a cross-sectional survey that collects public opinion data from Latin America, this article analyses public opinion toward the United States and China. One of the main takeaways from this study is that, despite its potential to showcase political stability, public diplomacy undervalues 'unintended consequences' of international trade relations. This article takes up international trade as an unintended, but arguably effective, resource to be developed for the practice of public diplomacy. Findings presented in this article do not claim causation between trade and opinion, something that can be explored by further research, but rather introduce new questions for further research on the public diplomacy of trade relations.

• 한국항행학회논문지
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• 제27권4호
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• pp.391-395
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• 2023

Helicopter accidents due to spatial disorientation in low visibility conditions continue to persist as a major issue. These incidents often stem from human error, typically induced by stress, and frequently result in fatal outcomes. This study employs machine learning to analyze flight data and evaluate the efficacy of a flight illusion detection algorithm, laying groundwork for further research. This study collected flight data from approximately 20 pilots using a simulated flight training device to construct a range of flight scenarios. These scenarios included three stages of flight: ascending, level, and descent, and were further categorized into good visibility conditions and 0-mile visibility conditions. The aim was to investigate the occurrence of flight illusions under these conditions. From the extracted data, we obtained a total of 54,000 time-series data points, sampled five times per second. These were then analyzed using a machine learning approach.

• Asia Marketing Journal
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• 제17권1호
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• pp.149-160
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• 2015

Social enterprises that seek to pursue socially desirable goals through economic profits have received considerable attention in recent years. Despite the widespread attention paid to social enterprises, they often achieve limited success in markets. This research examines how types of enterprises affect consumer judgments. This research considers two types of enterprises: social and for-profit enterprises. Building on the stereotype content model, we propose that consumers perceive social enterprises using the dimensions of warmth and competence. Study 1 shows that a product of a for-profit enterprise is judged as having higher performance, but being less meaningful; in contrast, a product of a social enterprise is judged as warmer, but less competent. Further, in Study 2, we demonstrate that consumers' willingness to buy products can be lowered when the products are offered by a social enterprise. Practical and theoretical implications are further discussed.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2013년도 추계 학술논문 발표대회
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• pp.21-22
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• 2013

Nowadays, the fiber which mixed with concrete matrix always has low adhesion with cement paste. It's difficult to use fiber to reinforce the structure. For more adding fiber in concrete would cause some problems as the low flowability and surface polishing. Further study is needed in fiber using. In this research, further study in fiber reinforced concrete has been invested. Various fibers with different properties have been used to prevent cracking. Fiber reinforced concrete's fundamental properties as slump, air content, compressive strength and tensile strength have been tested. Optimum type of the fiber and optimum addition ratio of fiber has been invested to increase the utility of the fiber which used in concrete.

• 유통과학연구
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• 제12권10호
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• pp.99-108
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• 2014

Purpose - The goals of this study are the following. First, this study focused on customer satisfaction of in-flight service. Specifically, in-flight duty free items were considered because of their potential value related with the differentiated strategy of airline companies. Second, this study analyzed feasible strategies that would fence off the aversive attitudes of consumers toward innovation regarding in-flight duty free items. Third, this study strived to discover implicit routes related with the reactions of of consumers to innovation. Fourth, the construal level theory was applied to the context of in-flight service. Psychological distance is expected to promote acceptance of innovation for duty free items. Research design, data, and methodology - This study consisted of three experiments. All data were collected through the participation of university students. First, the experiment employed a 2×2 between-subject design. The first independent variable was temporal distance (long vs. short of navigation time). The second independent variable was innovativeness (innovative duty free items vs. typical items). Further, experiment 2 involved a 2×2 between-subject design. The first independent variable was social distance (typical vs. atypical stewardess image). The second was innovativeness that was based on a pattern similar to that of the prior experiment. The third experiment involved a 2×2×2 design. The first and second independent variables were temporal distance and item innovation, respectively, based on the method of experiment 1. The third independent variable was cognitive depletion (depletion vs. control condition). Results - Experiment 1 demonstrated that the innovation of duty free items would need to consider the journey time of the airline. Specifically, innovative items were preferred in case of a long journey; typical items, however, were liked in a short journey. Further, experiment 2 demonstrated that, in spite of a short journey, innovative items would be preferred if an atypical stewardess was serving. An atypical stewardess was linked with social distance, and the psychological effects would activate a creative and flexible mindset that would fit with innovative duty free items. The final experiment was accomplished for the examination of cognitive processing of psychological distance on innovation-acceptance. Specifically, if the effects were related with systematic processing, then cognitive effort would be needed. In contrast, if they were related with heuristic processing, then such efforts would not be required. The same pattern appeared under both cognitive depletion and control condition; therefore, the effects of psychological distance were implied to be heuristic processing. Conclusions - Managers need to consider the navigation time, stewardess concepts, and depletion of consumers as important factors for innovative strategy regarding in-flight service. Longer journeys are more successful for innovative trials. Further, a more atypical stewardess image is more successful for atypical service. Long navigation and unfamiliar stewardesses may activate creative and flexible thinking. Further, cognitive depletion of consumers is not a dominant factor of psychological distance effects, because the effects are not related with systematic processing, but with heuristic processing.

• 천문학회지
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• 제3권1호
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• pp.1-5
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• 1970

The earlier findings on the radiative heating through the umbral walls in large sunspots are further investigated. No significant evidence for the umbra! heating has been found in small-sized sunspot umbrae.

• 대한핵의학회:학술대회논문집
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• 대한핵의학회 1969년도 제8차 학술대회
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• pp.9.1-9.1
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• 1969

• 한국방사성폐기물학회:학술대회논문집
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• 한국방사성폐기물학회 2009년도 학술논문요약집
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• pp.159-160
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• 2009

• Bulletin of the Korean Chemical Society
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• 제7권3호
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• pp.246-248
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• 1986