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VANET 환경에서 교차로간 연결성을고려한 RSU 배치 알고리즘
박현선(Hyunsun Park),황태현(Taehyeon Hwang),조영원(Yeongwon Jo),지정희(Jeonghee Chi),박소영(Soyoung Park) 한국정보과학회 2014 정보과학회 컴퓨팅의 실제 논문지 Vol.20 No.1
본 논문에서는 자동차 애드 혹 네트워크 환경(VANET)에서 교통 정보 전송, 수집 및 분석을 위한 필수기반 요소인 RSU(Roadside Unit)의 효율적인 배치 알고리즘을 제안한다. 모든 교차로를 커버할 수 있으면서, 네트워크 연결성이 최대가 되도록 RSU를 배치하는 것이 목적으로, 교차로의 우선 순위와 RSU 균등 배치를 고려하여 모든 교차로를 커버할 수 있는 최소한의 초기 RSU 후보지를 선정한 다음, 교차로간 정보 전송율을 나타내는 교차로간 연결성을 고려하여 제거 가능한 후보지를 제거함으로써, RSU의 개수를 최소화한다. 서울시 서초구 및 중구/종로구 지역의 도로 정보 및 실제 교통 정보를 활용하여 제안한 알고리즘의 효율성 및 성능을 평가한다. In this paper we propose an efficient RSU (Roadside Unit) allocation strategy in VANET (Vehicular Ad-hoc Network), which can cover entire intersections on the road by maximizing the VANET connectivity. We firstly find initial RSU candidates distributed evenly based on the concept of intersection priority. Then, we minimize the number of RSUs by removing some of the initial RSU candidates according to the intersection connectivity showing the communicational connectivity between any two intersections. Finally, we analyze the simulated performances of our algorithms using with real roadmaps and traffic data of SeochoGu and JungGu/JongroGu areas in Seoul.
박현선 ( Park Hyunsun ) 한국독어독문학교육학회 2022 獨語敎育 Vol.85 No.85
Ziel der vorliegenden Studie ist es, einen Kulturunterricht zu entwerfen, interkulturellen Kompetenzen für effektive Kommunikation zwischen den anderen Kulturen entwickeltn kann. Im Interkulturellen Unterricht soll die Fähigkeit entwickelt werden, “andere Kulturen zu verstehen und individuelle Kreativität zu entwickeln“ sowie “Weltbürgerschaft zu pflegen und ein richtiges Verständnis und eine offene Haltung gegenüber der deutschsprachigen Kultur zu haben“. Diese beiden Erziehungsrichtungen sind wichtig. Kultur sollte nicht nur Wissen vermitteln, sondern gleichzeitig sollten auch kulturinterne Faktoren gelehrt werden, die von Menschen, welche in eben dieser Kultur leben, geteilt weren. Zunächst wurden die in der Kulturdimensionstheorie von Hofstede identifizierten kulturellen Besonderheiten jedes Landes vorgestellt und die Standardisierungsarbeit der deutschen Kultur untersucht, um eine vergleichbare Perspektive auf andere Kulturen und die eigene Kultur zu erhalten. Zudem wurde die im deutschen Werbevideo “Entdecken Sie Deutschand“ gezeigte kulturelle Typizität aus der Perspektive des Kulturdimensionismus interpretiert. Schließlich wird ein Kulturunterricht vorgeschlagen, der kognitive und affektive Dimensionen integriert, damit die Lernenden kulturelle Kompetenzen wie Verstehenskompetenzen, Kommunikationskompetenzen und Verhaltenskompetenzen entwickeln können.
Do Successful Jacks Make a Successful Team? Members’ Functional Experience and Team Performance
Hyunsun Park(박현선),Hyuntak Roh(노현탁) 연세대학교 경영연구소 2021 연세경영연구 Vol.58 No.2
본 연구는 팀 구성원의 경력(직무경험) 특성이 팀 성과에 미치는 영향력을 살펴보는 것을 주요한 목적으로 한다. 팀을 구성하는 개별 구성원들의 경험특성이 집단 성과에 갖는 영향력에 대한 논의는 그동안 학계 및 기업 현장에서 오랜 관심의 대상이었음에도 불구하고, 관련 이론적 논의 및 실증적 검증은 아직 충분히 이루어지지 않았다. 본 연구는 이러한 문제의식에 대한 나름의 해답 및 실증적 근거를 제시하기 위하여, 먼저 팀 구성원의 직무경험 다양성(경험의 범위, 넓이)이 팀 성과에 미치는 영향력을 비선형적 관계(역 U자 형태)로 설정하고 이를 실증적으로 검증하고자 하였다. 또한 본 연구에서는 개인의 경험특성으로 경험의 넓이(다양성) 뿐 아니라 경험의 질(성공경험)을 함께 고려하여, 직무경험 다양성과 팀 성과 간 비선형적 관계가 경험의 질에 의해 어떻게 조절되는지에 대한 이론적, 실증적 검증 역시 수행하였다. 실증검증을 위해 2015년 미국 할리우드에서 개봉한 장편영화 200편과 해당 작업을 수행한 주연배우의 경력 데이터를 수집하여 이를 분석에 활용하였다. 분석 결과, 본 연구의 가설에서 제안한 바와 같이, 팀 구성원의 경험다양성과 팀 성과 간 역U자 형태의 비선형 관계가 존재함을 확인하였다. 또한 이러한 비선형 관계는 팀 구성원의 성공경험 수준이 높을 때 더 명확하게 나타나는 것을 확인할 수 있었다. Applying the new conceptualization of intrapersonal functional diversity, this study explores the link between team’s functional breadth (i.e., team members’ aggregate breadth of functional experience) and team performance. Considering that team members’ aggregate functional breadth brings cognitive and motivational advantages as well as cognitive and relational difficulties, we predicted a curvilinear relationship that is contingent on the level of aggregate functional breadth. We further examined the interaction effects between team members’ aggregate breadth and success of functional experience on team performance. Our hypotheses were tested in the setting of Hollywood feature film industry using a large-scale, lifetime functional experience dataset of 897 main cast actors and actresses who participated in 200 films released in the year of 2015. Our analyses revealed that there indeed exists an inverted U-shaped relationship between main cast members’ aggregate job breadth and box office revenue. Consistent with our expectation, the main effect relationship was moderated by main cast members’ aggregate job success, such that the inverted U-shape became more apparent under a high level of aggregate job success.
한방병원에 내원한 척추측만증 환자의 특성에 대한 후향적 연구
강신우 ( Shinwoo Kang ),박현선 ( Hyunsun Park ),박서현 ( Seohyun Park ),성원석 ( Wonsuk Sung ),김은정 ( Eunjung Kim ),금동호 ( Dongho Keum ) 한방재활의학과학회 2022 한방재활의학과학회지 Vol.32 No.1
Objectives This study was conducted to characterize scoliosis patients visiting Korean medicine hospital and to analyze the demands and factors affecting discomfort. Methods This retrospective study analyzed 33 scoliosis patients who visited Korean medicine hospital from March, 2021 to October, 2021. The data analysis consisted of three factors: (1) demographic characteristics, (2) characteristics of demands on Korean medicine (reasons for choosing Korean medical treatment, preferred treatment methods, most uncomfortable part, treatment priorities) and (3) discomfort factors (treatment experiences, diagnosed age and Cobb's angle). Statistical analyses were performed and a p-value≤0.05 was considered to be statistically significant. Results 43.75% of the patients chose ‘effectiveness’ for the reason why they preferred Korean medicine treatment. ‘Chuna treatment’ was the most preferred treatment method. The patients chose ‘lower back’ for the most uncomfortable part and ‘pain’ for the highest priority of improvement. The Cobb's angle of included patients was 16.02±7.65° and it is not much differ to average of Cobb's angle in Korean. Discomfort was more severe in the patients with treatment-experienced than treatment- naive. The score of discomfort in appearance and psychological were higher in the patients diagnosed in childhood or adolescent period than who were diagnosed after adult. Classification based on Cobb's angle showed no statistical difference. Conclusions Not only Cobb's angle but also other clinical factors should be considered for effective treatment in scoliosis. Also, It is necessary to pay attention to adult scoliosis patients. (J Korean Med Rehabil 2022;32(1):63-72)
소셜 미디어에서 개인의 심리 및 사회적 동기요인이 정보공유의도에 미치는 영향
이동만(Dongman Lee),박현선(Hyunsun Park) 한국인터넷전자상거래학회 2011 인터넷전자상거래연구 Vol.11 No.2
This study puts its focus on what impact office workers’ motivation has on their attitude and intention of the sharing information through social media. This paper is to predict information sharing based on the theory of reasoned action(TRA). A total of 266 responses were used for analysis and the results of the study are as follows. Firstly, Enjoyment in helping and image which are psychological factors have significant influence on attitude toward information sharing. Secondly, social factors such as social network, social trust and reciprocal benefit have significant influence attitude toward information sharing. Thirdly, social norm and attitude toward information sharing has a positively influenced intention of information sharing. Information self-efficacy, however, does not have any significant influence on attitude toward information sharing. The result of this study may provide individuals and corporations with utilization of and operating strategy through social media.