• Wind and Structures
• /
• 제2권1호
• /
• pp.69-83
• /
• 1999

The most common used control device on tall buildings and high-rise structures is active and passive tuned mass damper (ATMD and TMD). The major advantages of ATMD and TMD are discussed. The existing installations of various passive/active control devices on real structures are listed. A set of parameter optimization methods is proposed to determine optimal parameters of passive tuned mass dampers under wind excitation. Simplified formulas for determining the optimal parameters are proposed so that the design of a TMD can be carried out easily. Optimal design of wind-induced vibration control of frame structures is investigated. A thirty-story tall building is used as an example to demonstrate the procedure and to verify the efficiency of ATMD and TMD with the optimal parameters.

• Smart Structures and Systems
• /
• 제15권1호
• /
• pp.81-97
• /
• 2015

Recently, a new output-only modal identification method based on time-frequency independent component analysis (ICA) has been developed by the authors and shown to be useful for even highly-damped structures. In many cases, it is of interest to identify the complex modes of structures with non-proportional damping. This study extends the time-frequency ICA based method to a complex ICA formulation for output-only modal identification of non-proportionally-damped structures. The connection is established between complex ICA model and the complex-valued modal expansion with sparse time-frequency representation, thereby blindly separating the measured structural responses into the complex mode matrix and complex-valued modal responses. Numerical simulation on a non-proportionally-damped system, laboratory experiment on a highly-damped three-story frame, and a real-world highly-damped base-isolated structure identification example demonstrate the capability of the time-frequency complex ICA method for identification of structures with complex modes in a straightforward and efficient manner.

• Journal of Smart Tourism
• /
• 제1권1호
• /
• pp.65-67
• /
• 2021

This paper fills a gap in smart tourism research by investigating the link between online representations and their physical counterparts. This sort of phenomenology visualizes a doubled cultural mimesis that can be described by the story of the ship of Theseus, where the original is replaced by an ongoing process of installing new components. In this sense, social reality is conceptualized as having real cultural events and the production of cultural items as well as having digital reproductions that appear and circulate online. These are accessed by a variety of platforms where reality is simulated onsite through augmented reality technology or remotely through forms of virtual reality. This paper seeks to frame and to present this notion and its potential impacts on destination culture particularly during the COVID-19 pandemic in Korea.

• International Journal of Advanced Culture Technology
• /
• 제11권3호
• /
• pp.182-189
• /
• 2023

This study investigates the psychological effects of positive/negative valence order in repeated exposure to a suspenseful text. Specifically, the study seeks to understand how the order in which positive and negative elements are presented in a narrative impacts the experience of suspense, arousal, and enjoyment in readers or listeners. Using a suspenseful short story, participants were exposed to narratives with varying valence orders in a repeated-measures design. The study employed self-report questionnaires and psychophysiological measurements to capture participants' psychological responses. The results supported the hypothesis that repeated exposure impacts suspense, with negative valence enhancing suspense and arousal. Moreover, the order of valence influenced participants' psychological responses, indicating that positive valence can mitigate the impact of repeated exposure. However, the influence on enjoyment was not significant. Psychophysiological measures, specifically skin conductance level (SCL), revealed trends of habituation over repeated exposure. The findings underscore the significance of negative valence in heightening suspense and suggest directions for future research in exploring diverse factors that contribute to suspense in both fictional and real-life contexts.

• 한국간호교육학회지
• /
• 제7권1호
• /
• pp.126-142
• /
• 2001

Although a call for the implementation of PBL in nursing education is getting increased, it has not been actively implemented as it could be. The main reason for this situation seems to be the lack of well designed learning packages. Well designed PBL packages can be the core factor for the successful implementation of PBL. However, this seems to be the hardest task for teachers wanting to implement PBL. Therefore, the purpose of this study is to develop a systematic framework of PBL package development process and provide the examples of its application. This framework of the process of PBL package development includes thirteen steps. First of all, the team needs to decide a topic to be explored in the package and then clusters concepts related to the topic. Second, the team selects a real situation and writes it as a story. Third, knowledge, skills, and attitudes that practitioners need to know to deal with the situation will be explored. Fourth, learning objectives will be written. The next, the team will check if the situation includes multidisciplinary concepts and content. Sixth, the story will be divided into several parts. Seventh, part 1 will be written. Eighth, clinical documents related to part 1 need to be prepared. Ninth, the team will write a suggested approach for students. Then, they need to prepare a tutor's guide for part 1. Eleventh, the team will prepare a list of reading materials and plan for lectures and clinical laboratory sessions. Twelfth, they will write part 2 ~ part N following the steps from the seventh to the eleventh. The last step is evaluating the package and amending it as needed. These thirteen steps are very detailed and easy to follow for beginners. It is expected that this framework will contribute to accelerate the implementation of PBL in nursing education.

• 디지털콘텐츠학회 논문지
• /
• 제15권2호
• /
• pp.271-281
• /
• 2014

본 글은 인터넷을 통해 향유되는 만화가 모니터와 마우스와 같은 매체로 인하여 향유자의 감성을 확장한다고 전제하고 향유자의 만화 감상 유형을 탐구하고자 하였다. 디지털 만화의 향유자는 네트워크와 실시간 반응의 상호작용으로 작가 혹은 향유자들과의 소통을 통해 감성을 자극받을 수 있다. 또한 세로스크롤로 선택과 제어가 가능하며 이를 통해 작품의 몰입을 강화할 수 있고 스토리에 더욱 집중할 수 있다. 이러한 전제를 검증하기 위하여 감성자극 요소를 추출한 결과 요소들은 감성자극을 강화 받는 단계를 기준으로 커뮤니케이션형과 스토리집중형으로 향유자가 디지털만화를 통해 얻는 감성자극을 유형화할 수 있었다. 본 연구는 디지털만화를 둘러싼 매체 기술적 요인들과 향유자 간의 관계를 밝히는 연구로써 의의를 가질 수 있다.

• 한국식생활문화학회지
• /
• 제28권2호
• /
• pp.145-157
• /
• 2013

The purpose of this study was to develop cultural food contents from local dishes related to the historical and cultural heritage in the representative areas of Gurye and Jinan. The information on 'Story' was collected from each region's representative local native journal, searches of related web-sites, analysis of old literature, and interviews of traditional households. 'Telling', the conveyance, was focused on texts of literature analysis, which were synthesized from historical conditions, regional food materials, cuisine, regional symbolism, etc. The created food contents were displayed with balanced and healthy Korean food dishes after nutritional analysis. In Gurye, the content was extracted from the story of Hwang hyun (黃玹, 1855-1910) - figura of Gurye - and his collection, "Maecheonyarok", and the storytelling native food was prepared. In Jinan, the content was extracted from the text of an anecdote from "filial son Kwang-beom Lee", a local journal. We tried to express Gurye's clean image in connection with the patriot - Hwang hyun (his nick name was Maecheon), in the late period of Chosun through the unprocessed and simple nature of the dining table. As in Jinan's storytelling materials, we tried to express a healthy menu of health food for older people based on the clean nature and documents about the real character's filial behavior. The developed healthy menu and dining table properties in this study have been established in accordance with nutrient intake standards of energy in Korea.

• Earthquakes and Structures
• /
• 제9권1호
• /
• pp.49-71
• /
• 2015

The present paper aims at evaluating damage and collapse behavior of low-rise buildings with unidirectional mass irregularities in plan (torsional buildings). In previous earthquake events, such buildings have been exposed to extensive damages and even total collapse in some cases. To investigate the performance and collapse behavior of such buildings from probabilistic points of view, three-dimensional three and six-story reinforced concrete models with unidirectional mass eccentricities ranging from 0% to 30% and designed with modern seismic design code provisions specific to intermediate ductility class were subjected to nonlinear static as well as extensive nonlinear incremental dynamic analysis (IDA) under a set of far-field real ground motions containing 21 two-component records. Performance of each model was then examined by means of calculating conventional seismic design parameters including the response reduction (R), structural overstrength (${\Omega}$) and structural ductility (${\mu}$) factors, calculation of probability distribution of maximum inter-story drift responses in two orthogonal directions and calculation collapse margin ratio (CMR) as an indicator of performance. Results demonstrate that substantial differences exist between the behavior of regular and irregular buildings in terms of lateral load capacity and collapse margin ratio. Also, results indicate that current seismic design parameters could be non-conservative for buildings with high levels of plan eccentricity and such structures do not meet the target "life safety" performance level based on safety margin against collapse. The adverse effects of plan irregularity on collapse safety of structures are more pronounced as the number of stories increases.

• 한국언론정보학보
• /
• 제50권
• /
• pp.121-142
• /
• 2010

이 논문은 법을 소재로 한 TV 프로그램이 구성하는 현실과 법이미지에 대한 분석 연구이다. 법체계를 구성하는 법문화나 법규범은 배타적이고 폐쇄적인 특성 때문에 일반인들이 접근하기에 쉽지 않다. 그러나 이러한 법적인 내용이 미디어를 통해 방송 언어로 재현될 때는, 정보 제공 기능과 오락 기능은 물론 현실을 구성하고 교육하는 역할까지 수행하는 경우가 많다. 실제 일어났던 사건을 재연의 형식으로 되돌아보는 <실화극장－죄와 벌>도 그러한 사례 중의 하나이다. 이 리얼리티 프로그램은 현실의 사건을 재현하여 수용자들에게 오락과 정보를 제공하고, 드라마와 다큐멘터리의 기법을 혼합하여 법체계 및 법적 쟁점들에 대한 의미를 구성한다. 이때 미디어를 통해 재현되는 법은 현실적인 사회구조에 대한 인식과 연관되어 의미를 구성한다. <실화극장－죄와 벌>의 경우, 법의 권위를 강화한다는 소위 'CSI 효과'보다는 대립 구조로 사회를 파악하고 개인과 법의 관계를 고민하게 만드는 의미가 더 큰 것으로 분석되었다. 결국 TV 법정 프로그램은 법체계를 교육하는 상징체계의 역할뿐 아니라 현실의 법과 사회구조와 가치에 대한 의미를 구성하는 기구 역할을 한다고 볼 수 있다.

• 한국구조물진단유지관리공학회 논문집
• /
• 제20권3호
• /
• pp.58-65
• /
• 2016

이 논문은 지진응답을 감소시키기 위해 외부설치형 카고메 감쇠시스템의 유효성을 비선형 동적 해석 결과를 통해 나타내었다. 이전의 연구에 의해 제안된 카고메 감쇠시스템을 활용하여 본 연구에서는 등방성, 이선형 이력특성 및 설치구성이 새롭게 제안하였다. 또한, 외부접합형 카고메 감쇠시스템의 여러 가지 효과를 15층 및 20층 철근콘크리트 라멘조 아파트를 대상으로 검증하였다. 원구조물에 대한 감쇠장치 지지구조물의 강성비, 감쇠장치의 수량 및 설치 층수는 설계변수로 고려하였다. 수치해석결과, EKDS는 기존의 한 방향 층간에 설치되는 감쇠시스템과 비교할 때 더 작은 수를 적용하여도 두 방향의 지진하중을 감소시키는데 매우 효과적임을 입증되었다.