다이아그리드 구조 시스템의 내진성능계수 평가

김경환,주영규,김상대,Kim, Kyoung-Hwan,Ju, Young-Kyu,Kim, Sang-Dae 한국강구조학회 2010 韓國鋼構造學會 論文集 Vol.22 No.3

새롭게 제안된 다이아그리드 구조 시스템은 경사진 기둥을 통해 구조물의 중력하중과 횡력을 모두 저항하는 시스템이다. 하지만 현재 내진설계 기준은 새로운 구조시스템에 대한 적절한 반응수정계수가 없다. 이에 새로운 시스템의 반응수정계수를 포함한 내진설계시 고려되는 내진성능계수들을 산정하기 위해 ATC-63(안)이 새롭게 제안되었다. ATC-63(안)에서는 구조 시스템의 여러 변수에 의해 다른 값을 가지게 되는 반응수정계수를 보완하기 위해 붕괴여유비를 함께 고려하여 건물의 내진성능을 판단한다. 본 논문에서는 4층에서 36층의 서로 다른 높이의 대각가 새 구조물을 설계하여 ATC-63(안)의 방법론에 따라 비선형정적해석과 동적해석을 통해 대각가새 구조의 내진성능계수를 평가하였다. As a new structural system, the diagrid system resists both gravity and lateral loads with diagonal columns. In current seismic design provisions, however, the response modification factor for a new structural system is not provided yet. ATC-63 provides a new methodology for defining various seismic performance factors, including the response modification factor. ATC-63 includes the collapse margin ratio in modifying the response modification factor, which can vary with many structural systems. In this paper, a non-linear static analysis and a dynamic analysis were conducted for four different diagrid models with 4-to 36-story heights. From these analyses, the response modification factor of the diagrid system was evaluated.

쓰기에 영향을 미치는 요인에 대한 중학생의 인식

김경환(Kim, Kyoung-hwan) 국어교육학회 2016 국어교육연구 Vol.60 No.-

The purpose of this study is to research the perception of middle school student in relation with factors that influence writing. For this study, it selected 20 factors that influence writing according to study method and middle school student level. It used a questionnaire made through an analysis of writing process models, a consideration of previous studies, expert consultation, and a pilot test. The questionnaire focused on importance and performance. The results of this study are summarized as follows. First, there was a gap in middle school students & perceptions between the degree of importance and degree of performance in regards to factors that influence writing. Second, the results of the importance-performance Matrix was that almost all of the factors were positioned in the first quadrant. Among the factors we focused on, we looked at ‘overview again’, ‘advice’, ‘conference’, ‘self-affirmation’ and ‘self-compensation’. In particular, it focused on ‘advice’ and ‘feedback’ to teachers and researchers who designed lectures and study plans based on a correction method of teaching and feedback commentary. Third, in analyzing the importance-performance Matrix, the male group correlated with ‘conference’ and the female group correlated with ‘self-affirmation’ to a high degree. Fourth, the low group featured the factors of ‘self-awareness’, ‘time’ and ‘understanding the writing task’. The study showed that factors such as ‘time’ and ‘understanding the task’ have to be considered in teaching students who do not have confidence.

지역별 바이오산업의 육성 성과 진단 분석 : 제약산업을 중심으로

김경환(Kyoung-Hwan Kim) 대한지리학회 2023 대한지리학회 학술대회논문집 Vol.2023 No.06

쓰기 부진 개념 진술에 대한 비판적 고찰

김경환 ( Kim Kyoung Hwan ) 고려대학교 한국어문교육연구소 2022 한국어문교육 Vol.39 No.-

본 연구의 목적은 쓰기 부진 개념을 비판적으로 분석하는 것이다. 이를 위해 국어교육학과 특수 교육학 분야에서 쓰기 부진을 주제로 수행한 연구를 선정하여 연구자들이 상정한 쓰기 부진 개념만을 추출하여 분석하였다. 연구 결과는 다음과 같다. 첫째, 쓰기 부진의 개념은 대상과 대상의 상태로 구분되었다. 쓰기 부진 개념에서 대상에 대한 기술은 쓰기 장애와 구분하기 위해 특수 교육이 필요한 대상자를 배제하는 방향으로 기술되고 있었다. 대상의 상태는 절대적 기준과 상대적 기준이 혼재되어 사용되고 있었다. 둘째, 쓰기 부진 개념에서 대상은 능력, 장애 여부, 지능 등으로 기술되고 있었는데, 이러한 용어들은 대상을 정확하게 한정하기에 한계가 있었다. 쓰기 부진의 개념에서 대상을 기술하기 위해 “구어나 사고의 문제가 없는 학생”을 대안으로 제시하였다. 셋째, 쓰기 부진의 개념에서 대상의 상태는 절대적 기준과 상대적 기준을 혼합하여 사용하는 경우가 많았고, 대상이나 학습 맥락에 따라 두 기준을 적절하게 사용할 것을 제안하였다. The purpose of this study is to critically analyze the concept of writing underachievement. For this purpose, researches conducted on the subject of writing underachievement in the fields of Korean language education and special education were selected, and from them, the concept of writing underachievement presented by the researchers was extracted and analyzed. The study results are as follows. First, the concept of writing underachievement was divided into two―the object and the state of the object. In the concept of writing underachievement, the description of the subject was described in a direction that excludes the subject that needed special education. This was to distinguish it from the writing disability. The state of the subject was used in a mixture of criterion and norm standard. Second, in the concept of underachievement, the subject was described as ability, disability, intelligence, etc., but these terms had limitations in accurately defining the subject. In order to describe the subject in the concept of writing underachievement, the description “students who do not have problems with oral language or thinking” was presented as an alternative. Third, in the concept of writing underachievement, a mixture of criterion and norm standard was often used for the condition of the subject, and it was suggested that the two criteria be appropriately used according to the subject or learning context.

에이전트기반 개방병원 간호기록시스템 설계에 관한 연구

김경환(Kim Kyoung-Hwan) 한국지능정보시스템학회 2010 지능정보연구 Vol.16 No.2

The attending system is a medical system that allows doctors in clinics to use the extra equipment in hospitals-beds, laboratory, operating room, etc-for their patient’s care under a contract between the doctors and hospitals. Therefore, the system is very beneficial in terms of the efficiency of the usage of medical resources. However, it is necessary to develop a strong support system to strengthen its weaknesses and supplement its merits. If doctors use hospital beds under the attending system of hospitals, they would be able to check a patient’s condition often and provide them with nursing care services. However, the current attending system lacks delivery and assistance support. Thus, for the successful performance of the attending system, a networking system should be developed to facilitate communication between the doctors and nurses. In particular, the nursing records in the attending system could help doctors monitor the patient’s condition and provision of nursing care services. A nursing record is the formal documentation associated with nursing care. It is merely a data repository that helps nurses to track their activities; nursing records thus represent a resource of primary information that can be reused. In order to maximize their usefulness, nursing records have been introduced as part of computerized patient records. However, nursing records are internal data that are not disclosed by hospitals. Moreover, the lack of standardization of the record list makes it difficult to share nursing records. Under the attending system, nurses would want to minimize the amount of effort they have to put in for the maintenance of additional records. Hence, they would try to maintain the current level of nursing records in the form of record lists and record attributes, while doctors would require more detailed and real-time information about their patients in order to monitor their condition. Therefore, this study developed a system for assisting in the maintenance and sharing of the nursing records under the attending system. In contrast to previous research on the functionality of computer-based nursing records, we have emphasized the practical usefulness of nursing records from the viewpoint of the actual imp lementation of the attending system. We suggested that nurses could design a nursing record dictionary for their convenience, and that doctors and nurses could confirm the definitions that they looked up in the dictionary through negotiations with intelligent agents. Such an agent-based system could facilitate networking among medical institutes. Multi-agent systems are a widely accepted paradigm for the distribution and sharing of computation workloads in the scientific community. Agent-based systems have been developed with differences in functional cooperation, coordination, and negotiation. To increase such communication, a framework for a multi-agent based system is proposed in this study. The agent-based approach is useful for developing a system that promotes trade-offs between transactions involving multiple attributes. A brief summary of our contributions follows. First, we propose an efficient and accurate utility representation and acquisition mechanism based on a preference scale while minimizing user interactions with the agent. Trade-offs between various transaction attributes can also be easily computed. Second, by providing a multi-attribute negotiation framework based on the attribute utility evaluation mechanism, we allow both the doctors in charge and nurses to negotiate over various transaction attributes in the nursing record lists that are defined by the latter. Third, we have designed the architecture of the nursing record management server and a system of agents that provides support to the doctors and nurses with regard to the framework and mechanisms proposed above. A formal protocol has also been developed to create and control the communication required for

기획논문 : 국어교육, 어떤 텍스트로 가르칠 것인가 ; 읽기 전략에 대한중학생의 인식 조사

김경환 ( Kyoung Hwan Kim ) 고려대학교 한국어문교육연구소 2016 한국어문교육 Vol.19 No.-

본 연구의 목적은 읽기 전략에 대한 중학생의 인식을 조사하는 것이다. 먼저, 선행연구 분석을 통해 읽기 전략 26개를 선정하였다. 다음으로 전문가 협의를 통해 설문 내용을 확정하였다. 읽기 전략에 대한 중학생 인식은 중요도와 활용도로 나누어 조사되었다. 연구 대상은 설문에 응답한 중학교2학년 116명이었다. 연구 결과는 다음과 같다. 첫째 읽기 전략의 중요도에 대한 인식이 활용도에 대한 인식보다 높았다. 둘째 비슷한 유형이나 동일한 목적을 지닌 전략임에도 불구하고 서로 다른 인식이 나타난 경우가 있었다. 셋째, 남학생집단은 읽은 내용의 심화·확장에 초점을 두고 있었고 여학생 집단은 내용이해에 초점을 두고 있었다. 넷째, 읽기 능력에 대한 인식이 보통인 집단은 내용 이해에 초점을 두고 있었고 상 집단은 읽기를 조정하는 전략에 초점을 두고 있었다. 이상의 결과를 바탕으로 읽기 전략에 대한 연구는 학습자에 대한 이해를 바탕으로 이루어져야 한다는 것을 제안하였다. The purpose of this study is to explore middle school student perception of reading strategies. For this study, 26 reading strategies was selected through a consideration of previous studies. Next a questionnaire was created through expert consultation. We researched students’ perceptions of reading strategies according to their perceived importance and performance. The subjects of study were 116 second-year middle school students who responded to the questionnaire. The results of this study are summarized as follows. First, the degree of importance was higher than the degree of performance in regards to reading strategies. Second, there were different perceptions despite reading strategies that were of a similar type or same purpose. Third, the male group focused on extending ordeepening more reading comprehension compared with female group. The female group focused on the reading comprehension itself. Fourth, normal group of students who scored three points in Likert-scale about reading strategies focused on the reading comprehension itself. The high group of students who scored four or five points in Likert-scale about reading strategies focused on a regualted strategies. Based on the results, it proposed that a study on reading strategies be based on an understanding of the learner.

중국 인터넷 사용자들의 인터넷 건강정보 평가에 관한 연구

김경환(Kyoung-hwan Kim) 한국인터넷전자상거래학회 2009 인터넷전자상거래연구 Vol.9 No.4

This study aims to verify factors that influence when Chinese internet users evaluate internet health information and to analyse the relationship of them. Internet experience and perceived web site quality influence direct to customer satisfaction. Despite positive relation ship between web site experience and information quality, they have indirect influence to customer satisfaction through web site quality. These results indicate that chinese internet users perceive the difference between information quality and web site quality, and the increase of internet experience can make more internet business opportunities.

기업다변화와 인수 후 통합

김경환 ( Kyoung Hwan Kim ) 경기대학교 관광종합연구소 2001 여가관광연구 Vol.5 No.-

다속성 효용이론을 활용한 중국시장에서의 인터넷 의료정보 서비스 선호속성 분석

김경환(Kyoung Hwan Kim),장영일(Young Il Chang) 한국데이타베이스학회 2009 Journal of information technology applications & m Vol.16 No.4

This study investigated consumer preferences for Internet medical information service in China using the multi-attribute utility theory. The multi-attribute utility theory is a compositional approach for modeling consumer preferences wherein researchers calculate the overall service utility by summing up the evaluation results for each attribute. We found that Chinese Internet medical information users consider the availability of information and quick response to be the most important attributes. Further, they think that the comment feature is less important as compared to other attributes such as costs and updates. In addition, we found that the Internet users having more Internet experience consider these attributes to be more important as compared to the people who are just beginning to surf the Internet. For any successful Internet business, Internet marketers should assess individual-level preference and accordingly organize a fresh campaign. As of now, Internet marketers need estimation methods to predict the market performance of new services in many different business environments. We believe that the multi-attribute utility theory is a useful approach in this regard.

의료서비스를 위한 자동협상 스케줄링 시스템 설계

김경환 ( Kyoung-hwan Kim ) 한국인터넷정보학회 2008 인터넷정보학회논문지 Vol.9 No.3

본 연구에서는 의료서비스의 복잡한 스케줄링문제 해결을 위한 새로운 시스템을 제안하였다. 기존 FCFS 시스템은 병원의 입장만 고려하였으나 제안 시스템은 병원의 사정과 환자들의 선호시간을 자동협상으로 반영하였다. 본 시스템은 개인의 서비스이용 희망시간을 우선도로 표현하였고 개인이 선택한 협상전략에 따라 변화되는 우선도를 기준으로 스케줄을 조정할 수 있도록 설계하였고 병원의 정책에 따라 스케줄을 확정 할 수도 있게 하였다. 따라서 제안시스템은 장비의 유휴시간만을 고려하는 기존시스템과 달리 장비의 효율성뿐만 아니라 환자의 대기시간까지 고려할 수 있도록 하여 의료서비스의 고객만족경영을 지원할 수 있을 것이다. New system solves scheduling problem in medical services. The existing scheduling system by FCFS is for a hospital, but new system expresses the condition of a hospital and the profit of separate system`s parties by the automated negotiation. This system expresses user preference time as a priority number and is designed that the schedule is changed according to the priority number with a negotiation strategy for a patient. And a hospital makes a schedule according to the policy. The system supports customer satisfaction in medical services by considering not only equipment efficiency but also the patent waiting time unlike the existing system considering the idle time for a equipment.