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기체전자증폭기를 이용한 X-선 영상획득실험에 관한 연구
강상묵,한상효,조효성,남상희 대한의용생체공학회 2003 의공학회지 Vol.24 No.2
기체전자증폭기는 기존의 기체검출기의 표류공간에 위치하여 표류전기장을 매우 짧은 거리에 걸쳐 전자사태가 가능한 세기(〉 $10^4$ V/cm) 이상으로 압축함으로써 기체이득을 향상시키는 개념적으로 간단한 기구이다 이 기구는 양면이 금속(구리)으로 얇게 코팅된 수십 $\mu\textrm{m}$ 두께의 절연성 foil에 화학적 에칭이나 고출력 레이저빔 천공방법을 이용하여 직경 100 $\mu\textrm{m}$ 이하의 미소 hole들을 100-200 $\mu\textrm{m}$ 간격으로 균일하게 뚫어 놓은 구조로 되어 있다. 본 연구에서는 다양한 실험조건에서 기체전자증폭기의 동작특성을 조사하였으며 또한 기체전자증폭기의 섬광특성을 이용하여 표준 CCD 카메라와 결합하여 X-선 영상을 획득함으로써 디지털 X-선 영상센서로서의 가능성을 제시하였다. The gas electron multiplier placed in the drift volume of conventional gas detectors, is a conceptually simple device for producing a large gas gain by concentrating the drift electric field over a very short distance to the point that electron avalanching occurs(〉 10$^4$ V/cm), greatly increasing the number of drifting electrons. This device consists of a thin insulating foil of several tens of urn in thickness. covered on each side with a thin metal layer(Cu), with tiny holes, usually 100 ${\mu}{\textrm}{m}$ or less in diameter. and with a spacing of 100-200 ${\mu}{\textrm}{m}$ through the entire foil. perforated by using chemical etching or high-powered laser beam technique In this study, we have investigated its operating properties with various experimental conditions, and demonstrated the possibility of using this device as a digital X-ray imaging sensor, by acquiring X-ray images based on the scintillation properties of the gas electron multiplier with standard CCD camera.
호텔 기업의 ESG 활동이 사회적 소비가치와 구매의도에 미치는 영향
강상묵,김지은 한국호텔리조트학회 2024 호텔리조트연구 Vol.23 No.2
This study surveys consumers with experience using hotel campanies aimed to explore 1) the relationships between among ESG activity, social consumption, purchase intention, 2) the relationship between social consumption value and purchase intention, and 3) the mediating effect of social consumption value. From online questionnaires answered by consumers with experience using hotel campanies, 355 valid samples are used for analysis. For empirical analysis, simple and multiple hierarchical regression analyses are conducted. First, the results of this study shows that ESG activity has a positive effect on social consumption value and purchase intention. Second, social consumption valuehas a positive effect on the purchase intention. Third, there is a mediating effect of from social consumption value between ESG activity and purchase intention. Currently, companies' ESG activities are viewed as effective management strategies that can positively impact both consumers and investors, fostering long-term growth. As a practical implication, it proposed a marketing plan for hotel companies to stimulate consumption through research on the consumption value of ESG activity, and presented basic data necessary to prepare strategic measures to form a positive image of ESG activity.
강상묵,정연홍 한국문화관광학회 2004 문화관광연구 Vol.6 No.1
The objective of this research is to determine the issues related to the internal hotel restaurant management conflicts especially between front line employees and back stage employees. In addition, it is the purpose of this research to measure the level of inter-departmental disputes within different hotel divisions and to offer an effective solution to managing these inter-departmental conflicts. In order to accomplish this research objective, authors, have established non-managerial level employees of food & beverage department and food preparation department of top-class hotels in Seoul. Furthermore, authors propose to study this subject base in order to determine cause and effect of inter-departmental conflicts as presented in this research.
항공사 조직공정성이 혁신행동에 미치는 영향 - 신뢰의 조절효과 -
강상묵,조경희 관광경영학회 2012 관광경영연구 Vol.53 No.-
The purpose of this study is to review and to investigate the impact of organizational justice on innovative behavior and the moderating role of trust. This study aimed to explore the relationships among organizational justice, trust, innovative behavior of the airline flight attendants. In addition, it tries to find out the moderating effects that the trust have contributed to organizational justice and innovative behavior. In total. 270 questionnaires were distributed and 232 valid and complete questionnaires were collected for empirical data analysis. The results from the empirical study shows that 1) organizational justice has positive impact on innovative behavior as proxy variable of organizational performance and 2) trust has moderating role between organizational justice and innovative behavior. The results of this research shows that for competitive advantage under the competitive environment of the airline, in addition to human resource management and organizational management, the management system which emphasizes the importance of organizational justice and the trust among company members should be built.
강상묵,신창호,Pham Nhu Viet Ha,최창일,김종경,김용균 한국물리학회 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.59 No.22
A computed radiography (CR) system using reusable image plates (IPs) offers a convenient and reliable way to replace a conventional film-screen system for non-destructive testing field. The ability of radiography to detect a defect in welded objects depends on the procedure and embraces several factors such as the measurement conditions, the image plate type/class, the radiation energy, the radiation type, and the source-to-image plate distance. Also, the ability of images to detect a flaw decreases with increasing object thickness. In the study, images of welded objects were acquired with a CR system manufactured by FUJI by using Selenium-75, Iridium-192, and X-ray with and were obtained through MCNP5 simulations under the same conditions as the given experiments conditions.