• Title/Summary/Keyword: Multi-center study

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Classification of Multi-modal Transfer Center Considering the Regional and Functional Characteristics (지역 및 기능적 특성을 고려한 복합환승시설 유형분류)

  • Kim, Tae-Gyun;Lee, Sam-Su;Byun, Wan-Hee
    • Land and Housing Review
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    • v.4 no.1
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    • pp.89-98
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    • 2013
  • In recent years, it was recognized that aurban policy paradigm of sustainable urban growth management and transportation policies have been shifted : from the era of automobile-oriented policy to the era of public transport policy. Against this backdrop, the introduction of the multi-modal transfer center is very consequential. Therefore, it is necessary for the introduction of wide-area and local-centric transfer facilities, as well as the center of the country-led national backbone transfer center. This study was applicable at the multi-modal transfer center plans to introduce guidelines to provide transit facilities, considering the regional and functional characteristics to classify the types of multi-modal transfer center. The final types of multi-modal transfer center were classified into six, and by considering the combination of the criteria to be classified. The multi-modal transfer center type classification based on the case analysis of the types of facilities at domestic and abroad. If the data of multi-modal transfer are accumulated continuously, can expect a more reliable type classification.

Study on T-Type Multi Level Inverter for UIPV System (계통연계형 태양광발전 시스템을 위한 T-타입 타상 인버터에 관한 연구)

  • Bayasgalan, Bayasgalan;Ryu, Ji-Su;Lee, Sang-Ho
    • Proceedings of the KIPE Conference
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    • 2012.07a
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    • pp.313-314
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    • 2012
  • In this paper presents study of T-Type multi level inverter for utility interactive photo voltaic inverter. In order to increase efficiency and performance of utility interactive photo voltaic (UIPV) system, we propose multi level PCS topology, such as T-type inverter. The control algorithm for utility interactive inverter is implemented by simulation and experimentation, which includes dc-bus and midpoint voltage controller, ac-grid current controller and PLL algorithm.

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The Study on the Monitoring of Temperature and Humidity in Public Utilization Facilities (다중 이용 시설에 대한 온.습도 모니터링에 관한 연구)

  • Choi, Man-Yong;Chae, Kyung-Hee;Kim, Ki-Bok;Kim, Su-Un
    • Proceedings of the SAREK Conference
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    • 2009.06a
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    • pp.1470-1475
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    • 2009
  • Until now for the safety of structures and equipment monitoring technology to measure the amount of the physical, if that is the one, one-point or single-source target is one the most. Therefore, becoming more numerous and complex to measure the amount of physical measurement technology that is comprehensive and complex, multi-source concepts to the monitoring of a multi-sensing technology is required. Have the same characteristics of multi-source multi-use space such as a multi-structure of facilities/equipment is. The people's safety in a multi-use facility will be directly related to life and even a little carelessness can lead to large-scale disaster occurs because of several factors, risks and to manage detect in advance the development of an intelligent monitoring technology is essential. Therefore, this study shows that multiple structures/facilities to improve the quality of human life in research to maintain a safe and comfortable living space for multi-source intelligence to the development of monitoring technology to achieve that goal, and the ubiquitous sensor network system on the basis of the wireless transmission module, and multiple research facilities/equipment for the ultra-small sensors for health monitoring study was performed.

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Multi-Sensory Environment and Agitated Behavior in Ageing Residents with Dementia

  • Lee, Sook-Young;Morelli, Agneta
    • Architectural research
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    • v.12 no.1
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    • pp.1-8
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    • 2010
  • This research paper explores selected behavioral outcomes of a multi-sensory environment. An experimental study was conducted at a specialized facility for the ageing in Sweden. The objective was to explore the effects of agitated behaviors of ageing residents with dementia and to identify any short-term effects. Appointed nursing staff was instructed to record physically and verbally agitated behaviors on three occasions; pre-session, mid-session, and post-session. Over seven months, nine participants received sixty-one sessions in the multi-sensory room. ANOVA and Post hoc multiple comparisons were performed to identify the differences in mean between each session. Generally irritated/frustrated behavior and eating/drinking non foods revealed statistically significant differences, while there were no significant results in verbally agitated behavior. One short-term effect was observed in one agitated category; a reduction of generally irritated/frustrated behavior. These results suggest that the multi-sensory environment can have positive effects on some manifestations of agitated behavior. This study proposes that a multi-sensory environment may be recommended as an alternative intervention for physically agitated behavior among this category of residents. However, more research is needed to understand the specific effects and the best use of the multi-sensory environment for this population.

Multi-dimensional Interactivity for Learners' Satisfaction with e-Learning

  • Lee, Ji-Eun;Shin, Min-Soo
    • Journal of Information Technology Applications and Management
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    • v.17 no.3
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    • pp.135-150
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    • 2010
  • Interactivity has been referred to as an important element promoting students' active participation in virtual classes. Assuming that interactivity cannot be defined by a single dimension, this study proposes multi-dimensional interactivity. Multi-dimensional interactivity includes all types of interactivity in e-learning. This study explored multi-dimensional interactivity which affects learners' satisfaction with e-learning. Data were collected from 132 students who had attended e-learning courses and the relationship between multi-dimensional interactivity and learners' satisfaction levels were tested through regression analysis. The result of this study showed that mechanical, reactive, and creative interactivity were positively related to learners' satisfaction. However, social interactivity seemed not to be related to learners' satisfaction. This study provides new insights on interactivity and verifies the importance of the multi-dimensional interactivity. The result of this study is expected to provide practical implications for interactivity strategies in e-learning.

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A Study on the Circular Multi-Family Housing for Designing Local Identity (지역성 구현을 위한 집합주택 원형 주거동의 표현 특성 연구)

  • Moon, Eun-Mi
    • Korean Institute of Interior Design Journal
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    • v.22 no.4
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    • pp.121-129
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    • 2013
  • This study was aimed at determining the characteristics of circular multi-family housing under the assumption that the shape of a residential building affects local identity. A total of six case studies were included in this study, three case studies on idle historical industrial facilities turned into residential buildings and another three on multi-family housing located in newly developed residential complexes. The study drew its conclusions as follows. First, the design of circular multi-family housing was intended to maximize security and defense from the outside in older times. This was later developed as the terrace house style with geometric urban squares designed under the urban planning of the Baroque period. This evolved high-density housing with a courtyard in the center offering a green open space, with the aim of restoring a sense of humanity. Second, the six case studies on circular multi-family housing were analyzed from the viewpoint of each factor of local identity, including historical and cultural, landscape, and community. Third, the historical and cultural elements of circular multi-family housing are found in some unused historical industrial facilities remodeled into residential buildings. They provide new capabilities and shapes desired by society at a given time, while maintaining familiar styles and elements of history, integrating a legacy of the past into the present. Fourth, circular multi-family housing with unique shapes and structures often become landmarks of a region with their distinctive appearance against a uniform urban environment and the monotonous scenery of residential complexes. They also show a high level of visual awareness with the distinctive shapes made possible when new elements are added to a historical exterior. Finally, circular multi-family housing with courtyards in the center prompt social contact between inhabitants, especially with dormitories and rental houses for the low-income bracket, which provide a small individual units with high use common space. Circular multi-family housing are planned in a manner similar to a small village or a city. They are designed to enhance sense of community, allocating various public amenities and provide cultural and commercial spaces on the ground floor and courtyard areas.

Postoperative Complications and Their Risk Factors of Completion Total Gastrectomy for Remnant Gastric Cancer Following an Initial Gastrectomy for Cancer

  • Park, Sin Hye;Eom, Sang Soo;Eom, Bang Wool;Yoon, Hong Man;Kim, Young-Woo;Ryu, Keun Won
    • Journal of Gastric Cancer
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    • v.22 no.3
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    • pp.210-219
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    • 2022
  • Purpose: Completion total gastrectomy (CTG) for remnant gastric cancer (RGC) is a technically demanding procedure and associated with increased morbidity. The present study aimed to evaluate postoperative complications and their risk factors following surgery for RGC after initial partial gastrectomy due to gastric cancer excluding peptic ulcer. Materials and Methods: We retrospectively reviewed the data of 107 patients who had previously undergone an initial gastric cancer surgery and subsequently underwent CTG for RGC between March 2002 and December 2020. The postoperative complications were graded using the Clavien-Dindo classification. Logistic regression analyses were used to determine the risk factors for complications. Results: Postoperative complications occurred in 34.6% (37/107) of the patients. Intra-abdominal abscess was the most common complication. The significant risk factors for overall complications were multi-visceral resections, longer operation time, and high estimated blood loss in the univariate analysis. The independent risk factors were multi-visceral resection (odds ratio [OR], 2.832; 95% confidence interval [CI], 1.094-7.333; P=0.032) and longer operation time (OR, 1.005; 95% CI, 1.001-1.011; P=0.036) in the multivariate analysis. Previous reconstruction type, minimally invasive approach, and current stage were not associated with the overall complications. Conclusions: Multi-visceral resection and long operation time were significant risk factors for the occurrence of complications following CTG rather than the RGC stage or surgical approach. When multi-visceral resection is required, a more meticulous surgical procedure is warranted to improve the postoperative complications during CTG for RGC after an initial gastric cancer surgery.

Directivity of Integration of Multi-Cultural Family's Family Life Culture (다문화가정의 가정생활문화 통합의 지향성)

  • Cha, Sung-Lan
    • Journal of Family Resource Management and Policy Review
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    • v.13 no.3
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    • pp.85-101
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    • 2009
  • The Multi-cultural Family Support Center provides various educational programs and services for multi-cultural families. However, there are controversies regarding integration and assimilation, ethnic identity and ethnocentrism, and state-sponsored multi-culturalism. From the home economist's perspective, it was necessary to explore the direction of integration of family life culture in the multi-cultural society. This study concluded that there is a necessity to accept foreign culture and create a new culture while still maintaining their and our own cultural identity respectively. For this purpose, integration and assimilation must progress side by side to maintain the cultural identity and stability of multi-cultural families. But, women migrants are to adapt in their everyday life, they need to attend a Korean-language course and take part in a traditional Korean culture program such as having an assimilational characteristics. Also for the happiness of multi-cultural families ultimately not for the confronted problems, it requires sometimes education of changing migrants' own traditional customs and life culture partly. In this sense, educational and cultural programs held by Multi-Cultural Family Support Center are meaningful and their importance in adapting into everyday life must be recognised by all of us.

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A Study on Thermal Behavior Characteristics of Multi-flight Screw in Injection Molding Machine by FEM (유한요소법을 이용한 다중날 사출기 스크류의 열거동 특성 연구)

  • Cho, Seung-Hyun;Lee, Young-Suk;Kim, Sung-Won;Kim, Chung-Kyun
    • Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
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    • 2002.05a
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    • pp.285-290
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    • 2002
  • Screw in injection molding machine is affected by heat flux, pressure on inside barrel, geometry of screw including flight number, pitch and flight angle. Volumetric efficiency increases as the flight number increases, but it didn't show steady tendency according to helix angle of flight. Heat flux from heating pad and injection pressure play a very important role on the thermal behavior characteristics. The increased number of multi-flight is merits and demerits for a screw efficiency. So, we have to optimize flight number of the screw considering temperature, displacement, distortion and stress of the screw.

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Optimal Multi-Model Ensemble Model Development Using Hierarchical Bayesian Model Based (Hierarchical Bayesian Model을 이용한 GCMs 의 최적 Multi-Model Ensemble 모형 구축)

  • Kwon, Hyun-Han;Min, Young-Mi;Hameed, Saji N.
    • Proceedings of the Korea Water Resources Association Conference
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    • 2009.05a
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    • pp.1147-1151
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    • 2009
  • In this study, we address the problem of producing probability forecasts of summer seasonal rainfall, on the basis of Hindcast experiments from a ensemble of GCMs(cwb, gcps, gdaps, metri, msc_gem, msc_gm2, msc_gm3, msc_sef and ncep). An advanced Hierarchical Bayesian weighting scheme is developed and used to combine nine GCMs seasonal hindcast ensembles. Hindcast period is 23 years from 1981 to 2003. The simplest approach for combining GCM forecasts is to weight each model equally, and this approach is referred to as pooled ensemble. This study proposes a more complex approach which weights the models spatially and seasonally based on past model performance for rainfall. The Bayesian approach to multi-model combination of GCMs determines the relative weights of each GCM with climatology as the prior. The weights are chosen to maximize the likelihood score of the posterior probabilities. The individual GCM ensembles, simple poolings of three and six models, and the optimally combined multimodel ensemble are compared.

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