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코로나19 전(前) 오버투어리즘 현상과 대응 정책에 관한 고찰 연구 : 문헌탐구방법론을 중심으로
김영남 ( Youngnam Kim ),서용건 ( Yongkun Suh ) 관광경영학회 2021 관광경영연구 Vol.103 No.-
Before the COVID-19 pandemic, many tourist destinations were suffered from overtourism problems. After COVID-19, the phenomenon of overtourism might reappear in many tourist destinations. The purpose of this study is to present insight overtourism research of the world, and to present policy directions for solving domestic problems through the results of the research. This study considered prior research on overtourism through systematic literature review methodology. This study analyzed 166 overtourism literature of Web of Science database. Data analysis and interpretation were conducted using Excel and VOSviewer programs based on the bibliographic data of the literature. Overtourism in prior studies can be divided into overtourism crisis, overtourism phenomenon, and overtourism response policy. In cities such as Venice, the congestion of tourists and the sharing economy went into the realm of residents' lives, and it affected the negative perceptions of residents such as aversion. The quality of life of residents has deteriorated, such as congestion and gentrification. To alleviate the phenomenon of overtourism, it is important to establish governance for sustainable tourism along with a tourism development plan that takes into account the capacity of tourist destinations. This paper contributes to the literature by providing an exploratory study with which to better understand overtourism. It is suggested possible mitigation measures that might be taken by policymakers.
[구조강도부문] 에너지흡수제어기에 의한 박육원통부재의 압궤특성
김영남(Youngnam Kim),기경서(Kyoungseo Ki),강종엽(Jongyup Kang),차천석(Cheonseok Cha),김선규(Sunkyu Kim),양인영(Inyoung Yang) 한국자동차공학회 2000 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
In this paper, static and impact collapse test of thin-walled circular tube member is performed under axial collapse load. Static tests have been carried out using the static testing machine(lnstron 8801) and dynamic tests have been utilized using an horizontal crushing testing machine. The energy absorption characteristics is observed according to the controller, height of the controller, clearance between specimen and controller. As a result, it was clear that the energy absorption characteristics of circular tubes were influence by the controller, height, clearance.
엔진 초기 개발 단계에서의 Water Jacket 형상 최적화에 관한 연구
김영남(YoungNam Kim),한봉훈(BongHoon Han),김우태(WooTae Kim) 한국자동차공학회 2003 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The flow patterns in the water jacket passage were scrutinized using computational fluid dynamics method. Using the flow patterns in the water jacket passage and the sectional distributions of mass flow rate and Head pressure resistance, the geometric optimization has been performed for the water jacket passage. Geometric influences on the flow patterns in water jacket were easily investigated. With the optimization of water jacket passage, the uniform mass flows in the cooling water passage between exhaust ports which is crucial for the engine head cooling system were obtained. It was possible for the geometric optimization of the cooling system in the early stage of engine design.<br/>
김영남(Youngnam Kim),조영재(Youngjea Cho),김성훈(Seunghoon Kim),이길성(Kilsung Lee),양인영(Inyoung Yang) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
This paper is to study the effects of curvature and staking sequence on the penetration characteristics of composite laminated shell. And we were performed to investigate the penetration characteristics of composite laminated shells by the oblique impact. Composite laminates used in this test are CFRP orthtropic laminated plates, which are stacked with two-interfaces [0₃/90₃] sand [0₂/90₃/0] s. They are manufactured to varied curvature radius (R=100, 150, 200㎜ and ∞). They are cured by heating to the appropriate hardening temperature(130˚) by mean of a heater at the vacuum bag of the autoclave. Test specimens were prepared with dimensions 100㎜ x 140㎜. When the specimen is subjected to transverse impact by a steel ball, the velocity of the steel ball was measured both before and after impact by determining the time for it to pass two ballistic -screen sensor located a known distance apart. In general, the critical penetration energy increased as the curvature increased, interface decrease and slope angle on the impact surface increased.
곡률을 갖는 복합재 적층쉘의 충격거동에 관한 실험적 고찰
김영남(Youngnam Kim),김지훈(Jihoon Kim),이현(Hyun Lee),나승우(Seoungwoo Na),심재기(Jaeki Sim),양인영(Inyoung Yang) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Composites are considered for many structural applications structural weight. These materials have high strength-to-weight and stiffness-to-weight ratios. However, they are susceptible to impact loading because they are laminar systems with weak interfaces. Matrix cracking and delamination are the most common damage mechanisms of low velocity impact and are dependent on each other. This paper is to study the behavior of composite shell under transverse impact loading. In this study, carbon-epoxy composite laminates with various curvatures was used. Low velocity impact tests were performed using a drop weight testing machine. The 100㎜×100㎜ shells were clamped in order to produce a central circular area (Φ=80㎜). An hemispherical impactor (m=0.1㎏ and Φ=10㎜) was used and the tests were done with velocities ranging from 2.8 to 4.8 ㎧. The real curve force/time was registered in order to obtain the maximum contact force and contact time. And then, we know that contact force and delamination area of flat-plate is higher than cylindrical shell panel in the same kinetic energy level, and flat-plate is easily penetrated than cylindrical shell panel. And contact force, deflection and delamination area decrease as the curvature increase.