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      • KCI등재

        천장형 유닛을 설치한 교실 내의인체 주변 온열환경에 관한 실측연구

        조성우,임영빈,이경희 대한설비공학회 2006 설비공학 논문집 Vol.18 No.3

        This paper performed to investigate on vertical temperature distribution, effective draft temperature(ETD) and PMV(Predicted Mean Vote) in the classroom, which is located YangSan city(Kyungsangnam-Do), Korea, is equipped with ceiling unit. The vertical temperature difference between F.L+10cm(ankle) and F.L+120cm(neck) of a measuring point which is adjacent corridor in the classroom showed about 1℃ but of measuring point which is adjacent outdoor expressed up to 4℃. The effective draft temperature(ETD) is -2.3 and -0.52 and 0.67 at near ceiling unit but is 1.2 and 3.3 at far from ceiling unit. The PMV of total classroom showed the range of "Cold" and "Slightly Cold." Therefore, to achieve comfort condition in the classroom is equipped with ceiling unit, the location of ceiling unit and discharge angle and discharge distance from ceiling unit are very important elements.

      • KCI등재

        The Relationship between Organizational Culture, Absorptive Capacity, and Performance of Korea’s International Logistics Service Providers: Verification of the Mediation Effect

        조성우,박명섭,허윤석,이재성 한국무역학회 2013 Journal of Korea trade Vol.17 No.3

        With the advent of globalization - a 21st century phenomenon - many corporations havebeen developing inroads into overseas markets. As international competition continues tointensify, some companies and researchers have taken a profound interest in the socialcognitions, reactions, backgrounds, and behaviors of members in organizations. In line withthese tendencies, organizational culture, along with absorptive capacity, is becoming oneof the decisive factors. This study aims to use empirical analysis to identify the relationshipsbetween organizational culture, absorptive capacity, and performance of international logisticsservice providers (ILSP) in Korea. The empirical research shows that (1) there is no direct relationship between the constructof power distance and performance; (2) absorptive capacity has no mediation effect on therelationship between the construct of uncertainty avoidance and business performance; (3)in the case of the constructs of masculinity and femininity and individualism and collectivism,there is a full mediation effect only on financial performance; (4) there is partial mediationbetween long-term orientation and non-financial performance. Overall, the results of this study suggest that managers of ILSP should bear in mindthat the constructs of organizational culture have considerable influence over an organization'sabsorptive capacity and business performance. These firms should acknowledge theseinfluences and apply appropriate strategies, focusing on known weaknesses, to effectivelystrengthen their competitive market positions and long-term survival and success.

      • KCI등재

        A Case of Primary Cardiac Lymphoma Mimicking Acute Coronary and Aortic Syndrome

        조성우,Byung Kyu Kim,Jin Tae Hwang,Jeong Hoon Kim,김병옥,고충원,Kun Joo Rhee,Hyo Seung Ahn,Hyun Jung Kim,Young Sup Byun 대한심장학회 2012 Korean Circulation Journal Vol.42 No.11

        Primary cardiac lymphoma (PCL) is a rare disorder, but the incidence is increasing and its clinical manifestations are various. We report a case of PCL, which mimics an acute coronary and aortic syndrome. A 51 year-old female was presented with chest pain radiating to the back. Her initial electrocardiogram revealed T wave inversion in the leads of V 5-6, II, III and aVF. Additionally, cardiac troponin-T was slightly elevated. Chest radiography showed marked mediastinal widening. Computed tomography scan showed a huge pericardial mass. The histopathologic findings of the mass were compatible with diffuse large B cell lymphoma. She died of refractory ventricular tachycardia,probably, due to an extensive infiltration of PCL to the myocardium.

      • KCI등재

        불연속면의 통계적 모델링을 이용한 암반사면의 안정성 평가

        조성우,송재준 한국자원공학회 2006 한국자원공학회지 Vol.43 No.5

        This paper presents a numerical approach to evaluate the possibility of removable blocks on a rock slope by using statistical joint modeling and block theory. Block theory has been used to distinguish removable blocks from tapered or infinite blocks and analyze their stability. This theory, however, uses the information of joint orientation and therefore, can only predict the maximum area of removable block occurrence. In this study, rock joints were statistically modeled: Probability distribution functions of the joint orientation and size, and volumetric frequency were estimated from window sampling data. Rock blocks consisting of a slope face and the modeled joints were simulated and their removability was tested. The entire analysis process was coded into a computer program, and each algorithm of the entire process was verified by comparing its result with theoretic solutions. In many cases, slope collapse is triggered by an excessive hydraulic pressure due to an intensive and/or continuous rainfall in the monsoon season. This kind of collapse shows that water saturation of discontinuities in the slope lowers the rock block safety of the slope. We also, therefore, tested the groundwater effect on slope stability. 암반사면의 거동가능블록은 사면과 암반내부에 존재하는 절리들의 교차로 인하여 생성되며 이로 인해 발생한 낙석은 인명과 재산에 큰 피해를 일으킬 수 있다. 본 연구에서는 통계적 절리 모델링 기법과 블록 이론을 이용하여 이러한 거동가능한 암반블록의 발생가능성을 알아보는 연구를 수행하였다. 블록이론은 이러한 거동가능 블록을 알아보는데 매우 간편한 해를 제공하나 지나치게 변수를 단순화하기 때문에 최대 발생가능한 블록의 크기만을 산정하는데 그 한계를 가지고 있다. 본 연구에서는 조사된 샘플을 이용하여 절리의 방향성, 크기, 밀도의 추정치를 구하고 사면과 절리(불연속면)를 통계적으로 모델링하였으며, 블록이론을 응용하여 암석블록의 안정성을 해석하는 컴퓨터 프로그램으로 개발하였다. 많은 경우에 암반사면의 붕괴는 장마나 집중호우 시에 발생함을 볼 때 수압이 사면의 붕괴에 큰 영향을 끼침을 알수 있는데, 이러한 경우를 고려하기 위하여 본 연구에서는 지하수의 영향 또한 연구하였다.서론

      • KCI등재

        학교교실의 실내열환경과 에너지 소비 예측에 관한 연구

        조성우,최정민,이경희 대한건축학회 2007 대한건축학회논문집 Vol.23 No.2

        This paper is provided preliminary data to decide the proper roof shape and direction and to heating and cooling load in a plan step. The reference classroom air temperature in B middle school is located at 10 degree south and west is showed that the top floor is higher about 3℃ than the first floor in summer. Because the air temperature difference between the top floor and first floor is happened by the direct solar radiation and storage components of floor and rooftop. But in winter because the convection current is caused by wind speed is bigger than solar radiation. As the convectional heat loss ,which is caused by temperature difference between surface temperature and outdoor air temperature, of rooftop is larger than vertical external wall, this state is reversed. The surface of external wall using the Infra Thermal Imager in B middle school and A primary school have surface temperature distribution 34℃~42℃ and 34℃~39℃ at 15:00 in summer respectively. The investigation on the heating and cooling load of top floor and first floor were performed by DOE-2.1E as a energy analysis program.

      • KCI등재

        냉방과 난방 부하 감소를 위한 지하피트의 이용 가능성

        조성우 대한설비공학회 2006 설비공학 논문집 Vol.18 No.2

        The purpose of this study is to predict outlet temperature and humidity through underground pit for the reduction of cooling load and heating load. Commonly, the underground temperature is lower than outdoor in summer but the reverse happens in winter. When the outdoor average air temperature is 25.7℃ during cooling periods, the average outlet air temperature through underground pit is 23.6℃ with 3m-depth and 60m-length and is 22.2℃ with 3m-depth and 150m-length. When the outdoor average air temperature is 4.9℃ during heating periods, the average outlet air temperature through underground pit is 7.7℃ with 3m-depth and 60m-length and is 10.8℃ with 3m-depth and 150m-length. The outlet air temperature is affected by more length than depth of underground pit. The diffusion ratio of outdoor humidity is -7.7×10-8kg/s in cooling periods and 9.29×10-7kg/s in heating periods.

      • KCI등재

        Absorptive Capacity, Organizational Culture, and Logistics Performance: Focusing on the Logistics Company in Korea

        조성우 한국무역연구원 2013 貿易 硏究 Vol.9 No.2

        This study aims to identify the relationships between organization culture, absorptive capacity, and performance on the logistics company in Korea based on empirical analysis. This research adopts structural equation modeling (SEM) in order to test the validation of the measurement models and examine the relationships between the construct variables. The statistical analysis shows that (1) there commonly exists a significant positive relationship between the lower degree of power distance and a high level of absorptive capacity; (2) there is no positive relationship between the higher level of uncertainty avoidance and a high degree of absorptive capacity; (3) the hypothesis on relationship between the high level of masculinity and a high degree of absorptive capacity is supported; (4)the low degree individualism has no significant positive influence upon a high level of absorptive capacity; (5)the high level long-term orientation has a significant positive relationship with a high degree of absorptive capacity; (6) there exists a significant positive relationship between absorptive capacity and performance (non-financial performance and financial performance); and (7) the result of the analysis of inter-relationship between non-financial performance and financial performance on logistics industry is significant positive. In conclusion, this study suggests that managers in logistics companies bear in mind that the constructs of organizational culture have considerable influence over organization's absorptive capacity and business performance. They should face up to the reality and apply the appropriate strategies based on the comprehended weaknesses in order to effectively strengthen its competitive market position and long-term survival and success.

      • KCI등재

        식민지 경성의 일본인 음악가 ‘임상희’ 연구

        조성우 이화여자대학교 음악연구소 2020 이화음악논집 Vol.24 No.1

        지금까지 행해진 일제강점기 양악사 연구는 다양한 분야에 대해 다양한 시각에서 전개되었다 그 결과 이러한 연구들은 단순히 일제강점기라는 특정 시기에 대한 조명으로 끝나는 것이 아닌, 한국의 근대 양악사 전반에 걸친 관심을 불러일으키는 중요한 촉매제 역할을 했다고 말할 수 있다. 하지만 이러한 성과에도 불구하고 지금까지의 연구를 통해 일제강점기 양악사를 균형 있게 바라볼 수 있느냐는 의문이 남는 것 또한 사실이다. 양적으로 많은 연구가 있었지만, 엄연히 일제강점기 양악사의 한 부분이라고 할 수 있는 일본인 음악가들과 일본인들에 의한 음악문화는 그다지 큰 관심을 받지 못했기 때문이다. 본 논문은 이러한 관점에서 일본인 음악가 미무라 쇼코(三村祥子), 조선 이름 임상희(任祥姬)에 대해 살펴보았다. 1930년대 말부터 1940년대 초에 걸쳐 식민지 경성에서 활동한 임상희는 일본인이었으나 조선 이름을 가지고 조선악단의 중심에 있었다는 독특한 이력을 가지고 있다. 그는 여러 조선인 음악가들과 교류하며 활발한 연주활동을 펼쳤다. 교육에도 관심을 기울여 이화여전 음악과의 성악 교수로 재직하는 한편, 개인 문하생 모임인 ‘쌍엽회’를 조직하는 등 다수의 제자를 양성했다. 또한, 일제강점기 말 최대규모의 음악단체였던 ‘조선음악협회의’ 회원이기도 했다. 이처럼 조선악단을 중심으로 펼쳐진 임상희의 활동은 당시 경성에서 활동한 보통의 일본인 음악가들과 뚜렷한 대조를 이룬다는 점에서 특징적이며, 그 배경에는 남편이었던 작곡가 임동혁(任東爀)의 존재가 중요하게 작용했을 것으로 추측할 수 있다. 임상희에게는 ‘일본인 음악가’이기 이전에 조선인 남편과 결혼하고 조선에 거주하는 이른바 ‘재조일본인처’로서의 역할이 요구되었기 때문이다. 본 논문은 많은 ‘재조일본인처’가 그러했듯이 임상희 또한 남편의 출신지인 조선의 생활양식과 문화를 받아들였고, 조선악단의 일원으로 활동한 것 역시 이러한 사회적 맥락에서 접근 가능하다는 것을 확인하고자 했다. Research of the history of Western music in Korea during the Japanese colonial era was developed from numerous perspectives in many different fields. However, these studies do not simply shed light on a specific period of time known as the Japanese colonial era. They can be said to have played an important catalyst in raising interest during the history of Western music in Korea. Despite these achievements, many people question the possibility of finding a balanced view of the history of Western music in Korea in existing research. Existing research has not focused much on the musical culture of Japanese musicians and Japanese people, which was certainly a part of the history of Western music in Korea during the Japanese colonial era. This paper will use this point of view to examine Japanese musician Mimura Shoko (三村祥子), known in Korea as Lim Sang-Hee. Lim was a Japanese colonist who lived in Korea in the late 1930s and early 1940s. She has a unique history as she had a Korean name and was the center of the music profession in Korea. She actively participated in performance activities with many different Korean musicians. She also had an interest in education, and was a professor of vocal music at Ewha College. She trained a number of disciples, and organized a private student group called the Ssang-yeop Gathering. Lim’s activities centered on the music profession of Korea were quite distinguished in contrast to the other Japanese musicians also working in Seoul. An important reason for this may have been the existence of her husband, composer Lim Dong-Hyuk (任東爀). Lim Sang-Hee was required to play the role that many so-called “Japanese wives in Korea” had to before she was known as a “Japanese musician.” This paper confirms that Lim, like many Japanese wives in Korea, embraced the lifestyle and culture of Korea, her husband’s homeland.

      • KCI등재

        유럽의 LNG벙커링 터미널 구축 현황과 우리나라의 경쟁력 확보 방안

        조성우,서선애 경남대학교 산업경영연구소 2016 지역산업연구 Vol.39 No.4

        The environmental pollution cause climate change and then these changes bring about various irresistible natural disaster. We are learning the importance of the environment and the attention for prevention of air pollution has steadily increased all over the world. The shipping industry is regarded as a major factor of the environmental pollution due to very high throughput. Therefore, IMO(International Maritime Organization) has made multifaceted attempts such as enact of the emission control areas(ECA) in order to reduce air emissions(CO2, NOX, SOX, PM) from vessels. To achieve these goals, it is impossible to use bunker C oil. LNG(Liquefied Natural Gas) is one of the attactive fuels for vessels. LNG is the best alternative from an economic and environmental performance perspective. Korea, support the powerful nation in the domain of the shipping and port industry, is considered LNG bunkering project as one of Korea’s future strategic business and invest capital in the business. The purpose of this paper is to explore the political and practical implications and suggestions in the development fo LNG bunkering terminal in Korea. We adopt a multiple-case study methodology to analyze the strategies of five European public port in order to achieve the goal. We proposed the seven strategies based on a comparative analysis of the case of Korea and the analysis of EU. 환경오염은 기후변화를 초래하고 기후변화로 인한 자연재해 피해 사례가 증가하고 있다. 이러한 변화로 환경의 중요성이 대두되고 있으며 전 세계적으로 대기환경오염 방지에 대한 관심 또한커지고 있다. 물동량 처리의 많은 부분을 담당하고 있는 해운산업은 환경오염의 주요 요인으로 인식되어 국제해사기구(IMO)는 배출통제지역을 설정하는 등 선박에서 발생하는 환경오염물질을 줄이기 위한 다각도의 노력을 기울이고 있다. 이러한 추세에 발맞추기 위해서는 현재 운항중인 벙커C유를 사용하는 선박으로는 대응이 불가능하다. 따라서 향후 LNG연료 추진선박 및 벙커링에 대한 지속적인 관심을 가질 수밖에 없다. 해운・항만물류 분야의 강국을 지향하는 우리나라는 향후허브 항만의 지위를 점하고 지속적인 성장을 위해 국가 미래전략사업의 한 영역으로 LNG벙커링사업을 추진해야 할 필요가 있다. 본 논문에서는 LNG벙커링과 관련하여 우리나라가 경재력을 확보하기 위해 어떠한 준비를 해야 하고 전략을 수립해야 하는지 함의를 도출하기 위해 LNG벙커링및 LNG연료 추진선박 등의 분야에서 선도적인 지위에 있는 유럽의 사례를 분석하였다. 우리나라현황을 분석하고 비교하여 7가지 방안을 제시하였다.

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