• 한국철도학회:학술대회논문집
• /
• 한국철도학회 2009년도 춘계학술대회 논문집 특별세미나,특별/일반세션
• /
• pp.379-384
• /
• 2009

It is of great importance to assure the running safety and ride comfort in designing the floating slab track for the mitigation of train-induced vibration. In this paper, for this, analyzed are the system requirements for the running safety and ride comfort, and then, the behavior of train and track at the transition zone between the floating slab track and the conventional concrete slab track according to several main design variables such as spring constant, damping coefficient, spacing and arrangement of isolators and slab length, using the dynamic analysis technique considering the train-track interaction. The results of numerical analysis demonstrate that the discontinuity of the support stiffness at the transition results in a drastic increase of the vertical vibration acceleration of the train body, wheel-rail interaction force, rail bending stress and uplift force. The increase becomes higher with the decrease of the spring constant of isolators and the increase of the isolator spacing, but the damping ratio does not significantly affect the behavior of train and track at the transition. Therefore, to assure the running safety and ride comfort, simultaneously increasing the effectiveness of vibration isolation, it is effective to minimize the relative vertical offset between the floating slab and the conventional track slab by adjusting the spring constant and spacing of isolators at the transition.

• 한국콘텐츠학회논문지
• /
• 제21권9호
• /
• pp.209-220
• /
• 2021

본 연구의 목적은 다수 비영리 기관들이 기금모금을 위해 홍보대사를 활용하는 모금 캠페인에서 실제 홍보 대사의 효과를 실증적으로 검증하는 것이다. 연구가설을 분석하기 위해 홍보대사 유형(인지도 고-전문가, 인지도 고-연예인, 인지도 저-전문가, 인지도 저-연예인)과 홍보대사의 공신력, 메시지 신뢰도, 조직에 대한 태도, 후원 행동의도를 종속변수로 하는 2×2 요인설계를 사용하여 분석결과 홍보대사의 공신력에 대한 홍보대사 유형에는 통계적으로 유의미하였고, 메시지신뢰도에 대한 홍보대사 유형에는 통계적으로 유의미하였다. 하지만 홍보대사 유형에 따른 조직에 태도에는 유의미하지 않았다. 마지막으로 홍보대사의 유형에 따른 공중의 후원 행동의도에는 통계적으로 유의미함을 확인하였다.

• 한국항공운항학회지
• /
• 제27권3호
• /
• pp.30-44
• /
• 2019

This study utilized the HEXACO model developed by Lee et al. to investigate the effect of personal level personality variables on adaptive performance of new pilots engaged in domestic airlines. As a result of the analysis, it was found out that extroversion had a statistically significant effect on adaptive performance, while openness to experience and conscientiousness did not affect the adaptive performance statistically. In the analysis of interaction between personality variables and demographic variables, there was a statistically significant interaction effect between the origin and extroversion. Second, it was confirmed that the extroversion variable had an influence on the adaptive performance, suggesting that personality variables should be reflected in the selection of new pilots. Third, when the extroversion level was low, the adaptive performance of the civilian was relatively lower than that of the military.

• BMB Reports
• /
• 제54권11호
• /
• pp.551-556
• /
• 2021

In this study, we investigated how Staufen1 influences the HIV-1 production. The overexpression of Staufen1 increased virus production without any negative affect on the viral infectivity. This increase was not caused by transcriptional activation; but by influencing post-transcriptional steps. Using multiple Gag protein derivatives, we confirmed that the zinc-finger domains of the HIV-1 nucleocapsid (NC) are important for its interaction with Staufen1. We also found that Staufen1 colocalized in stress granules with the mature form of the HIV-1 NC protein.

• 산경연구논집
• /
• 제13권8호
• /
• pp.29-50
• /
• 2022

Purpose - This study aims to investigate factors affecting Chatbot service acceptance attitude. For wide use of Chatbot service, firms need to find barriers or obstacles for customers, if any, not to use Chatbot service. Research design, data, and methodology - We apply value-based accept model to investigate the quality of Chatbot, to verify the meaning of service value of Chatbot and to find the relationship among variables. To test hypotheses, we conducted survey. We collected 300 questionnaires. SPSS version 2.0 is used. Regression analysis, moderating effect test is conducted. Results - 4 Qualities of Chatbot, Ease of use, Usefulness, Enjoyment, Interaction are affecting acceptance attitude, and 5 service values, only interaction does not affect emotion. Trust, Specialty, Necessity, Social, Emotion moderating Chatbot service to accepting attitude. Regarding moderating effects by personal characteristics and personal tendency, innovation resistance, innovativeness, and social effects are turned to have influence while regulatory focus, construal level does not have moderating force. Also, the auxiliary service like Chatbot service affects customers' evaluation on the main service quality. Conclusions - Service firms adopt Chatbot service for various purposes. The results imply that customers are generally recognize the merits of Chatbot, but there are some barriers such as innovation resistance characteristic especially uncomfortable.

• International Journal of Computer Science & Network Security
• /
• 제22권5호
• /
• pp.289-293
• /
• 2022

"Tolerance" is considered as an important professional quality of a modern specialist, which is manifested in an active moral position and readiness for constructive interaction with other participants in the pedagogical process; characterized by the manifestation of humanity, tolerance, friendliness, focus on resolving conflict situations in the professional sphere on a non-violent basis. The article considers scientific approaches to understanding the phenomenon of "tolerance". There are a number of factors that significantly affect the formation of tolerance in students. The way to the formation of tolerance is the rejection of social prejudices, negative social stereotypes, the development of an objective attitude to man regardless of his individual characteristics, the formation of skills of tolerant interpersonal interaction, the use of lectures, discussions, games and training in educational work. The purpose of this article is to highlight communicative tolerance as a necessary component of pedagogical practice of future professionals. It was emphasized that tolerance is the basis of religious tolerance and peace, prevention of all kinds of extremism, which are of particular importance for a multinational and multi-religious Ukraine.

• 천문학회보
• /
• 제44권2호
• /
• pp.38.2-38.2
• /
• 2019

In the history of universe, galaxies are consistently affected by surrounding medium and neighbor galaxies. These effects control galaxy evolution, making properties of galaxies diverse and dependent on environments. We investigate environments of various types of galaxies and how they affect galaxy properties, such as bar structures and galaxy sizes, etc. First, we present the observational evidence that bars can form from a cluster-cluster interaction. The evidence indicates that bars can form due to a large-scale violent phenomenon, and cluster-cluster interaction should be considered as an important channel for bar formation. Second, we discover for the first time that local early-type galaxies heavier than 1011.2 Msol show a clear environmental dependence in mass-size relation, in such a way that galaxies are as much as 20 - 40% larger in densest environments than in underdense environments. This result suggests that mergers played a significant role in the growth of massive galaxies in dense environments as expected in theory. Lastly, we investigate environments of the most massive galaxies and extremely massive quasars. By doing so, we find that massive galaxies are a much better signpost for galaxy clusters than massive quasars.

• 대한한의학방제학회지
• /
• 제32권3호
• /
• pp.311-324
• /
• 2024

Objectives : Human body keeps balance through the interaction of various organs, especially the lungs and kidneys are closely connected in maintaining health and preventing disease. This study explores how the lungs and kidneys interact in terms of breathing and fluid balance and aims to find common ground between Eastern and Western medical practices. Methods : Similar explanations related to the interaction between the lungs and kidneys in the physiology and pathology of Traditional Korean Medicine(TKM) and biomedicine were compared. Results : In breathing, the lungs and kidneys work together by adjusting abdominal pressure with the diaphragm and maintaining acid-base balance, and hormones and enzymes secreted from the kidneys significantly affect lung function. This process corresponds to the concept of TKM that the kidneys control the reception of qi (腎主納氣). For fluid balance, the lungs help manage fluid levels through evaporation and sweating, interacting with the kidneys via the Renin-Angiotensin System (RAS), ACE, ACE2 enzymes, and antidiuretic hormone (ADH). This is similar to the theory in TKM that the lungs regulate human fluid (肺主通調水道). Conclusions : This research shows that by looking at the same physiological and pathological processes from different angles, we can reduce misunderstandings between Eastern and Western medicine. It helps improve the understanding of TKM's theories and supports building a unified framework for both medical traditions. Future work should focus on developing compatible theoretical systems across these fields.

• 한국콘텐츠학회논문지
• /
• 제17권3호
• /
• pp.15-30
• /
• 2017

본 연구는 육아정책연구소에서 제공하는 한국아동패널 6차년도(2013)데이터를 사용하여 유아기 자녀를 둔 1614명의 어머니를 대상으로 취업여부에 따른 양육태도, 모-자녀상호작용, 유아의 또래놀이 상호작용 및 문제행동에 미치는 영향을 살펴보고자 하였다. 수집된 자료는 SPSS 18.0 프로그램을 이용하여 위계적 회귀분석을 실시하였다. 본 연구의 주요결과는 다음과 같다. 첫째, 어머니의 취업여부에 관계없이 어머니의 온정적 양육태도가 높을수록, 유아의 또래놀이 상호작용이 높을수록 유아의 내재화, 외현화 문제행동이 모두 감소하는 것으로 나타났다. 둘째, 취업모의 경우 모-자녀상호작용이 유아의 내재화, 외현화 문제행동에 유의미한 영향을 미치지 않았지만, 비취업모의 경우에는 유의미한 영향을 미쳐 자녀와 상호작용이 많을수록 유아의 내재화, 외현화 문제행동이 증가하는 것으로 나타나 취업모와 비취업모의 차이가 있었다. 이러한 연구결과에 기초하여 유아의 다양한 문제행동을 예방하는 부모교육 프로그램이나 아동 가족 상담현장에 실제적으로 활용할 수 있는 기초자료를 제공했다는 데 본 연구의 의의가 있다.

• 대한감각통합치료학회지
• /
• 제10권1호
• /
• pp.1-10
• /
• 2012

목적 : 본 연구에서는 그룹감각통합치료가 감각통합장애아동의 또래 및 치료사와의 상호작용에 어떠한 영향을 미치는지 알아보고자 하였다. 연구 방법 : 연구대상은 만 3~5세의 학령전기 아동 3명으로, 실험기간은 2011년 9월에서 12월까지였다. 그룹감각통합 치료는 주1회, 회기 당 80분씩 총 15회기로 실시하였다. 또래 및 치료사와의 상호작용을 관찰하기 위해 사회적 상호작용 행동관찰 표를 사용하였다. 그룹감각통합치료 사전/사후의 상호작용 차이는 윌콕슨 순위검정(Wilcoxon matched-pair signed rank test)을 사용하여 분석하였다. 결과 : 그룹감각통합치료 프로그램을 실시하기 전보다 후에 또래 및 치료사와의 긍정적 상호작용은 증가하고 부정적 상호작용은 감소하였으나 통계적으로 유의한 차이가 없었다. 결론 : 본 연구의 결과는 그룹감각통합치료가 감각통합장애아동의 또래와 치료사와의 상호작용 향상에 긍정적인 영향을 미친다고 결론짓기에는 한계가 있다. 그러나 프로그램이 적용되는 동안 다른 아동들을 관찰하고 기존의 놀이에 참여하려는 행동이 늘어났다. 그리고 거부하기나 물건 던지기와 같은 부정적인 행동은 줄어드는 등 아동의 개별행동에는 긍정적인 변화가 있었다. 향후 연구기간, 연구대상자 선정의 고려 및 표준 데이터를 제시해 줄 수 있는 평가도구를 통해 그룹감각통합치료를 적용한다면 상호작용에 향상에 대한 명확한 결과를 볼 수 있을 것으로 기대한다.