UHF 대역 RFID 리더들의 충돌을 제거하기 위한 중앙 중재 방법

배성우,류원상,안시영,양정규,김윤호,김준형,오하령,성영락,박준석,Bae, Sung-Woo,Ryu, Won-Sang,Ahn, Si-Young,Yang, Jung-Kyu,Kim, Yun-Ho,Kim, Jun-Hyung,Oh, Ha-Ryoung,Seong, Yeong-Rak,Park, Jun-Seok 한국시뮬레이션학회 2008 한국시뮬레이션학회 논문지 Vol.17 No.4

In the passive UHF (860-960MHz) RFID communications, which consists of a set of readers and tags, the readers normally interrogate the tag by using the backscatter mechanism. (i.e., tag response). In practical RFID environment, where multiple readers or tags exist; the interference causes collisions. This paper proposes a centralized arbitration scheme for avoiding the collision problems among multiple readers. The proposed centralized arbitration scheme is modeled in software environments, and is verified with simulation results. Simulated performance is focused on completion time, utilization and response time, and the simulation results show that our proposed scheme provides satisfactory performance grade. UHF 대역 수동형 RFID 시스템은 860~960 MHz 대역에서 리더와 태그가 역산란 변조 방식을 이용하여 통신한다. 따라서 다수의 리더와 태그가 동시에 존재하는 환경에서는 리더 신호 간에 간섭이 발생하고 원활한 통신이 어렵게 된다. 본 논문에서는 이러한 충돌 문제를 해결하기 위해 중재기를 사용한 중앙 중재 방법을 제안하고 제안된 방법의 성능을 평가하기 위하여 시스템을 모델링하고 시뮬레이션 하였다. 시뮬레이션은 완료시간, 이용도, 응답시간으로 평가하고, 제시한 중재 방법이 만족스러운 성능을 보임을 확인하였다.

사회복귀시설 재활프로그램이 정신장애인의 삶의 질에 미치는 영향

배성우(Bae Sung-Woo),김이영(Kim Yi Young),손지아(Son Ji A) 경성대학교 사회과학연구소 2011 社會科學硏究 Vol.27 No.1

본 연구는 배성우ㆍ김이영(2005a)이 실시한 삶의 질에 관한 종단연구에 대한 후속연구로서의 성격으로 진행되었다. 배성우ㆍ김이영(2005a)의 연구는 15-20개월에 걸쳐 제공된 재활프로그램의 효과성을 검증한 반면, 본 연구는 사회복귀시설에서 5년간에 걸쳐 제공된 제반 정신보건 프로그램이 종합적으로 정신장애인의 삶의 질에 미치는 영향을 종단적으로 분석하여 프로그램의 효과성을 검증하는데 그 목적이 있다. 본 연구의 목적을 달성하기 위하여 대구지역에 소재한 D사회복귀시설에 등록한 정신장애인들을 대상으로 유사실험설계를 활용하여 자료수집을 실시하였다. 실험집단은 총 25명으로 구성하였으며 초기 측정을 실시한 후, 매 6개월 간격으로 총 11회에 걸쳐 반복측정을 실시하였다. 총 16명으로 구성된 비교집단의 경우에는 초기측정을 실시하고 6개월 간격으로 총 11회 반복측정을 실시하였다. 수집된 자료는 위계적 선형모형(Hierarchical Linear Modeling)기법을 적용하여 분석하였다. 본 연구의 결과는 크게 3가지로 요약할 수 있다. 첫째, 실험집단과 비교집단의 변화궤적을 분석한 결과, 정신보건 프로그램이 정신장애인의 삶의 질을 높이는데 효과가 있는 것으로 나타났다. 둘째, 연구결과, 정신보건 프로그램의 효과성은 적어도 5년 동안 지속됨을 검증하여 프로그램이 장기적인 효과가 있음을 증명하였다. 셋째, 연구기간 동안 정신장애인의 삶의 질은 선형적으로 증가하기 보다는 볼록포물선의 궤적을 나타내면서 변화함을 검증하였다. 마지막으로 본 연구가 지니는 의의와 후속연구를 위한 제언을 논의 하였다. This paper reported follow-up results of the study published in 2005, which examined rehabilitation programs' effectiveness on the quality of life among the mentally ill. While the study published in 2005 examined the impact of 15-20 months long services, this paper reported the 5-year outcomes of rehabilitation programs' effectiveness on the quality of life. To accomplish the study purpose, data were collected from a psychoslcial rehabilitation center located in Daegu metropolitan area using a quasi-experimental study design. The experimental group consisted of 25 subjects and they were administered the quality of life measure at baseline and every six month over time. For the comparison group consisting of 16 subjects, the identical measure of quality of life was administered at baseline and every six months over 5-year period. The collected data were analyzed using Hierarchical Linear Modeling. The analyses revealed the following three main findings. First, when the change trajectories of experimental group were compared to those of the comparison group, it was found that the overall rehabilitation programs were effective increasing experimental group's quality of life outcomes. Second, the analyses indicated that the rehabilitation programs' effectiveness could be maintained at least 5 years indicating that the rehabilitation programs had a long-term positive impact on the mentally ill. Third, it was revealed that the experimental group's quality of life outcomes improved over time showing a curvelinear shape rather than showing a linear pattern. Finally, the research and practice implications for this study were discussed.

조절초점과 원산지이미지가 골프용품의 품질지각, 가치지각 및 구매의도에 미치는 효과

배성우 ( Sung Woo Bae ) 한국스포츠정책과학원(구 한국스포츠개발원) 2013 체육과학연구 Vol.24 No.4

The purpose of this study was to examine that identify the differences in perceived quality, perceived functional value, perceived social value, and purchase intention of country-of-origin image by adopting regulatory focus of sporting goods. A survey experimental research using between-subject factorial design was employed in order to develop four types about selected products (high/low country-of-origin image x promotion/ prevention focus). A subject evaluated only one type rather than all four types because of avoiding the artificiality of the experimental results. The questionnaire for this study was disseminated to 400 golfers from Pusan and Gyeongnsangnam-do province citizen. 93 questionnaires were excluded because they were not applicable. There were 317 usable subjects (77%). In order to determine whether the questionnaire was valid and reliable, exploratory factor analysis and Cronbach`s alpha coefficient were examined. To prove the hypothesis of the study based on the sampled data, structural equation modeling was conducted using the SPSSWIN 15.0 program . The following was the results of this study. the results indicated that there were statistically significant differences in perceived quality, perceived social value, perceived functional value and purchase intention between the levels of country-of-origin image by adopting regulatory focus. First, the results indicated that there were statistically significant differences in perceived quality between the levels of regulatory focus(F = 50.763, p< .001) and country-of-origin image(F=235.714. p< .001) Second, the results indicated statistically significant differences existed perceived social value between the levels of regulatory focus(F = 69.529, p< .001) and country-of-origin image, (F = 154.898, p < .001). Third, the results indicated that there were statistically significant differences perceived functional value between the levels of regulatory focus(F = 69.189, p< .001) and country-of-origin image, (F = 179.713, p < .001). Lastly, the results indicated that there were statistically significant differences purchase intention between the levels of regulatory focus(F =39.287, p< .001) and country-of-origin image, (F = 97.164, p < .001). Taken together, based on the results of this study, it led to the conclusion that golf consumers evaluated the golf product in terms of perceive quality, perceived social value, perceived functional value and purchase intention that were highly associated with the levels of regulatory focus and country-of-origin image during the process of decision making for consumption of golf product. The findings of this study will contribute to an extension of the knowledge about the golf consumers` decision-making process of purchasing behavior. The findings also provide golf marketers and managers for meaningful practical applications. Practical implications and several directions for future study of findings are discussed. 본 연구는 조절초점과 원산지이미지에 따른 스포츠용품의 품질지각, 가치지각 요인인 사회적 가치지각과 기능적 가치지각 및 구매의도에 어떠한 효과가 있는지 알아보았다. 부산광역시와 경상남도에 거주하고 있는 성인 400명을 대상으로 비확률 표본추출법(non-probability sampling)중 편의표본추출법(convenience sampling method)을 이용하여 설문조사를 실시하였다. 총 317부의 유효 표본을 자료 분석에 사용하였으며, SPSS WIN 15.0 통계 패키지를 이용하여 탐색적 요인분석(Exploratory factor analysis)과 Cronbach`s 검증 및 이원분산분석을 실시하였다. 모든 통계적 유의수준은 α<.05로 하였고 도출된 가설검증의 결과는 다음과 같다. 첫째, 향상초점자는 예방초점자보다 품질지각시 원산지이미지에 더 호의적으로 나타났으며, 예방초점자는 향상초점자보다 원산지이미지가 낮을 때 품질지각을 더 낮게 평가하였다. 둘째, 향상초점자는 예방초점자보다 사회적 가치지각 시 원산지이미지에 더 호의적으로 나타났으며, 예방초점자는 향상초점자보다 원산지이미지가 낮을 때 기능적 가치지각을 더 낮게 평가하였다. 셋째, 향상초점자는 예방초점자보다 기능적 가치지각 시 원산지이미지에 더 호의적으로 나타났으며, 예방초점자는 향상초점자보다 원산지이미지가 낮을 때 기능적 가치지각을 더 낮게 평가하였다 넷째, 향상초점자는 예방초점자보다 구매의도 시 원산지이미지에 더 호의적으로 나타났으며, 예방초점자는 향상초점자보다 원산지이미지가 낮을 때 구매의도를 더 낮게 평가하였다. 조절초점과 원산지이미지는 모든 종속변인에 대해 상호작용효과가 나타났다.

외재적 단서의 수준에 따른 스포츠용품평가의 차이분석

배성우 ( Sung Woo Bae ) 한국스포츠산업경영학회 ( 구 한국스포츠행정경영학회 ) 2012 한국스포츠산업경영학회지 Vol.17 No.1

본 연구는 소비자의 구매의사결정과정에서 외재적 단서 중 브랜드인지도, 원산지이미지, 지각된 가격의 수준(고/저)에 따른조합일 때 지각된 품질, 지각된 위험, 지각된 가치 및 구매의도에 어떠한 차이가 있는지 알아보았다. 부산광역시와 경상남도에 소재 20곳의 골프 연습장을 선정 후 그 이용객 1,200명을 대상으로 비확률 표본추출법(non-probability sampling)중 편의표본 추출법(convenience sampling method)을 이용하여 설문조사를 실시하였다. 총 996부의 유효 표본을 자료 분석에 사용하였으 며, SPSS WIN 15.0 통계 패키지를 이용하여 탐색적 요인분석(Exploratory factor analysis)과 Cronbach``s . 검증 및 일원분산분 석을 실시하였다. 모든 통계적 유의수준은 α=.05로 하였고 도출된 가설검증의 결과는 다음과 같다. 첫째, 지각된 품질은 ‘고 브랜드×고 원산지×고 가격’이 가장 높은 것으로 나타났다. 둘째, 지각된 위험은 ‘저 브랜드×저 원산지×저 가격’이 가장 높은 것으로 나타났다. 셋째, 지각된 가치는 ‘고 브랜드×고 원산지×저 가격’이 가장 높은 것으로 나타났다. 넷째, 구매 의도는 지각 된 가치와 동일한 결과로 ‘고 브랜드×고 원산지×저 가격’이 높게 나타났다. The purpose of this study was to identify the differences in perceived quality, perceived risk, perceived value, and purchase intention between high and low levels of three extrinsic cues of sporting goods (brand awareness, country-of-origin image, and perceived price). Before the main test stage, two pre-tests were performed. The first pre-test was to determine which the results indicated that the driver of golf clubs was selected for the specific sport product of this study because it represented higher involved product, foreign-preferred product, various brands, and wide price range, comparing with other sporting goods. Second pre-test was employed to determine the manipulation of brand awareness, country-of-origin image, and perceived price. A sample consisted of actual 40 golfers from a golf driving range. Based on the results of two pre-tests, an experimental research using between-subject factorial design was employed in order to develop eight types of extrinsic cues about selected products (high/low brand awareness x high/low country-of-origin image x perceived price). The questionnaire for this study was disseminated to 1200 golfers from 20 golf driving ranges. 204 questionnaires were excluded because they were not applicable. There were 996 usable questionnaires (83%). The following was the results of this study. First, the results indicated that there were statistically significant differences in perceived quality between the levels of brand awareness, country-of-origin image, and perceived price (F = 49.607, p< .001). Second, the results indicated statistically significant differences existed between the levels of brand awareness, country-of-origin image, perceived price on perceived risk (F = 13.287, p < .001). Third, the results indicated that there were statistically significant differences between the levels of brand awareness, country-of-origin image, and perceived price on perceived value (F = 25.346, p < .001). Lastly, the results indicated that there were statistically significant differences between the levels of brand awareness, country-of-origin image, and perceived price on purchase intention (F = 25.346, p < .001). Taken together, based on the results of this study, it led to the conclusion that golf consumers evaluated the golf product in terms of perceive quality, perceived risk and perceived value that were highly associated with the levels of brand awareness, country-of-origin image, and perceived price during the process of decision making for consumption of golf product. Specifically, as the golf product reflected high brand awareness, high country-of-origin image, and low perceived price, better evaluation of it from golf consumers was to be appeared. In addition, there was higher intention to buy the golf product, which was represented by high brand awareness, high country-of-origin image, and low perceived price. The findings of this study will contribute to an extension of the knowledge about the golf consumers`` decision-making process of purchasing behavior. The findings also provide golf marketers and managers for meaningful practical applications. Practical implications and several directions for future study of findings are discussed.

해양스포츠 동호인의 운동몰입과 재참여의도의 관계 검증

배성우(Sung-Woo BAE) 한국수산해양교육학회 2016 水産海洋敎育硏究 Vol.28 No.2

The purpose of this research is to define the relationship of sport commitment and re-participation intension in marine sports participant. For the purposes of this study, yachting, windsurfing, scuba diving, and mariner sports canoe total of 200 targets the participants involved in the survey. The results of exploratory factor analysis and reliability analysis to analyze the construct validity and internal consistency were found to comply with the standard. Therefore, as a result of the correlation and regression analysis to analyze the relationship between the sport commitment and re-participation intension, the correlation between each variable and showed a positive correlation. Also, cognitive behavioral commitment and engagement of the sport commitment of marine sports enthusiasts was found on both the positive effect on the re-participation intension. As a result, the sport commitment turned out to be an important factor immersed in marine sports participation. In addition, it is believed to be on ways to increase positive emotions in empirical terms.

외상성 간손상에 대한 임상적 고찰

배성우(Seong-Woo Bae),문상은(Sang-Eun Moon) 대한외과학회 1994 Annals of Surgical Treatment and Research(ASRT) Vol.47 No.2

잡지에 대한 신뢰도가 광고효과에 미치는 영향에 있어서 관여도의 역할에 관한 연구

배성우(Bae, Sung-Woo) 한국광고홍보학회 2003 광고연구 Vol.0 No.59

SLS 공정에서 최적 공정 조건 도출을 위한 실험적 연구

배성우(Sung-Woo Bae),유성연(Seong-Yeon Yoo),김동수(Dong-Soo Kim) 한국생산제조학회 2012 한국생산제조학회지 Vol.21 No.3

Selective Laser Sintering(SLS) system consists of various element technologies. Main components of the system include a position control system, a speed control system of the roller, and nitrogen atmosphere furtherance for the powdered sintering. Other systems which make the core of the SLS system are build room and the feed room for powder epitaxial, a temperature control system, and a scan path generator for the laser. The powder material for laser sintering is necessary to produce prototypes in Solid Freeform Fabrication(SFF) based on SLS process. This powder material is sintered in powder room using CO<SUB>2</SUB> laser after spreading evenly using roller to reproduce mold via SFF. This study addresses an SFF system by using the SLS process which applies single laser system to enable manufacturing of 3D shape. And to evaluate applicability of the single laser system, experiments were conducted with optimal fabricating process.

장ㆍ 단기 가족교육 프로그램의 종단적 효과

배성우(Sung-Woo Bae),김이영(Yi Young Kim),허만세(Maanse Hoe),손지아(Jia Son),박병선(Byung-sun Park),진혜민(Hye-min Jin),정희정(Hee-jung Jung) 충남대학교 사회과학연구소 2014 사회과학연구 Vol.25 No.1

잡지에 대한 신뢰도와 광고 메시지 이해도가 광고효과에 미치는 영향에 관한 연구

배성우(Sung Woo Bae) 한국광고홍보학회 2008 한국광고홍보학보 Vol.10 No.4

본 연구는 정교화 가능성 모델(Elaboration Likelihood Model)을 이론적 바탕으로 하여 잡지의 신뢰도와 광고 메시지 이해도가 광고에 미치는 영향을 엄격히 통제된 실험을 통해 규명하였다. 잡지의 신뢰도는 광고 효과를 측정하기 위하여 사용된 모든 종속 변수에 긍정적인 영향을 주었으며, 광고 메시지 이해도는 광고에 대한 태도와 구매의도에 긍정적인 영향을 주었다. 이론적 측면에서, 본 연구에서는 잡지의 신뢰도와 광고 메시지 이해도간의 상호작용 효과가 관찰되지 않음으로써 매개 변수로서 메시지 이해도를 가정한 정교화 가능성 모델의 타당성에 의문을 제기하고 있는 반면에, 잡지의 신뢰도와 광고 메시지 이해도 모두의 주 효과가 관찰됨으로써 명시적으로 간편적 처리(heuristic processing)와 체계적 처리(systematic processing)의 공존 가능성을 인정한 간편적-체계적 모델을 지지하는 것처럼 보인다. 실용적 측면에서, 본 연구결과에 의하면 신뢰도 높은 잡지는 그들의 광고 공간에 대하여 더 높은 광고료를 책정할 수 있으며, 광고 효과를 높이기 위하여 광고주는 소비자가 광고 메시지를 쉽게 이해할 수 있도록 하여야 할 것이다. The impact of magazine credibility and message comprehension on advertising effectiveness was investigated under strictly controled experiment conditions based on the Elaboration Likelihood Model as a theoretical ground. Perceived magazine credibility had positive impact on all dependent variables which were used to measure advertising effectiveness whereas message comprehension had positive impact on attitude toward the advertisement and intention to buy the product. Theoretically, the results of this study seem to support the heuristic-systematic model which explicitly supposes that both heuristic processing and systematic processing can co-occur rather than the Elaboration Likelihood Model which assumes the moderating role of message comprehension. Practically, the results suggest that a highly credible magazine can charge higher prices on its advertising spaces and that advertisers need to aid consumer`s message comprehension to enhance the effectiveness of their advertisements.