천음속/초음속 압축기 익렬에서 Shock-Boundary Layer 상호작용의 수동적 제어에 의한 성능 향상 연구

김상덕,권창오,사종엽,Kim, Sang-Deok,Gwon, Chang-O,Sa, Jong-Yeop 대한기계학회 1996 大韓機械學會論文集B Vol.20 No.9

In this paper the CSCM type upwind flux difference splitting Navier-Stokes method has been applied to study the ARL-SL19 transoni $c^ersonic compressor cascade flow. First, the general characteristics of baseline cascade flow were analyzed. At freestream Mach n.1.612 and exit/inlet pressure ratio 2.15, the results from current laminar flow were compared well in suction surface with the experiment; however, not well in pressure surface. Second, numerical study of the transoni $c^ersonic compressor cascade flow demonstrated the effectiveness of a passive control by the various size cavities. A cavity under the shock foot point at the suction surface of the blades was used as a passive control. The passive control of shock-boundary layer interaction by a cavity reduced total pressure losses. The effect of cavity length and depth was studied. The total pressure loss was reduced by about 10% and the isentropic efficiency was improved slightly. The effect of cavity depth in current study(d/l = 0.05, 0.02) was not found strong. Further adequate turbulence modeling and TVD schemes would help to capture the shock more accurately and increase the effectiveness of the current shock-boundary layer interaction study using upwind flux difference splitting computational methods.thods.

생산자책임재활용제도와 종이팩

김상덕,Kim, Sang-Deok (사)한국포장협회 2008 包裝界 Vol.177 No.-

유통경로 내 조직간 영역초월행동에 관한 연구

김상덕(Sang Deok Kim) 한국경영학회 2007 한국경영학회 통합학술발표논문집 Vol.2007 No.8

최근 영역초월행동에 관한 관심이 늘어나고 있다. 여기서 영역초월행동은 종업원들이 사전에 정해진 역할을 넘어서 추가적으로 수행하는 행동을 의미하는데, 영역초월행동은 고객의 만족과 서비스 품질지각, 그리고 호의적인 구전활동을 강화하는데 중요한 역할을 한다. 그러나 영역초월행동이 중요한 역할을 할 것으로 기대할 수 있는 기업 간 거래관계, 특히 유통경로 구성원간 관계에서 영역초월행동에 관한 연구는 국내는 물론 해외에서도 매우 부족한 실정이라 할 수 있다. 이에 본 연구에서는 기존에 서비스 분야에서 주로 다루어졌던 영역초월행동을 유통경로 조직간 관계에서 다루었다. 특히, 본 연구는 다양한 유통경로의 조직패턴, 즉, 기업형, 계약형, 그리고 전통형 유통경로별로 영역초월행동이 어떻게 다르게 나타나는 지도 탐험적으로 살펴보았다. 자동차 대리점 200 점, 외식 프랜차이즈 가맹점 120 점, 산업자재 소매점 104 점, 총 420 개의 소매점을 대상으로 실시한 설문조사 결과 판매자의 의사소통의 질, 공정성, 마케팅 프로그램의 일관성이 구매자의 관계만족과 조직결속을 통해 영역초월행동을 강화하는 것으로 나타났다. 한편, 영역초월행동은 수직적 통합수준이 높은 계약형과 기업형 경로구조에서 더 활발하게 나타났다. Recently, both scholars and marketers have asserted the importance of boundary spanning behaviors, such as external representation, being vocal advocates to outsiders of the organization`s image, goods, and services, internal influence, taking individual initiative in communications to the firm and co-workers to improve service delivery by the organization, co-workers, and oneself, and service delivery, serving customers in a conscientious, responsive, flexible, and courteous manner. However, there is lack of study dealing with bourdary spanning behaviors bewteen organizational dyads, in which boundary spanning behaviors are expected to have important roles. The objectives of this paper is to investigate these important concerns with prior research by developing a theoretical model predicting how distinct buyer`s boundary spanning behaviors occur. To be concrete, this paper develops a seller characteristics-based model of the attitudinal antecedents of three conceptually distinct forms of boundary spanning behaviors, and tests the hypothesized differential effects of seller characteristics on the three forms of boundary spanning behaviors, and investigates the extent to which these relationships are mediated by relationship satisfaction and organizational commitment. For the purpose of empirical testing, 420 respondents of leading automobile dealers, dining franchisees, industrial material retailers in Korea were surveyed and the analysis utilizing structural equation model indicated that communication quality, fairness, and marketing program dynamism had positive effects on buyer`s boundary spanning behaviors via relationship satisfaction and organizational commitment. In addition, boundary spanning behaviors occurred more in contractural and corporate distribution channel than in conventional distribution channel.

유통경로 내 조직간 영역초월행동에 관한 연구

김상덕(Sang Deok Kim) 한국유통학회 2007 한국유통학회 학술대회 발표논문집 Vol.- No.-

최근 영역초월행동에 관한 관심이 늘어나고 있다. 여기서 영역초월행동은 종업원들이 사전에 정해진 역할을 넘어서 추가적으로 수행하는 행동을 의미하는데, 영역초월행동은 고객의 만족과 서비스 품질지각, 그리고 호의적인 구전활동을 강화하는데 중요한 역할을 한다. 그러나 영역초월행동이 중요한 역할을 할 것으로 기대할 수 있는 기업 간 거래관계, 특히 유통경로 구성원간 관계에서 영역초월행동에 관한 연구는 국내는 물론 해외에서도 매우 부족한 실정이라 할 수 있다. 이에 본 연구에서는 기존에 서비스 분야에서 주로 다루어졌던 영역초월행동을 유통경로 조직간 관계에서 다루었다. 특히, 본 연구는 다양한 유통경로의 조직패턴, 즉, 기업형, 계약형, 그리고 전통형 유통경로별로 영역초월행동이 어떻게 다르게 나타나는 지도 탐험적으로 살펴보았다. 자동차 대리점 200점, 외식 프랜차이즈 가맹점 120점, 산업자재 소매점 104점, 총 420개의 소매점을 대상으로 실시한 설문조사 결과 판매자의 의사소통의 질, 공정성, 마케팅 프로그램의 일관성이 구매자의 관계만족과 조직결속을 통해 영역초월행동을 강화하는 것으로 나타났다. 한편, 영역초월행동은 수직적 통합수준이 높은 계약형과 기업형 경로구조에서 더 활발하게 나타났다. Recently, both scholars and marketers have asserted the importance of boundary spanning behaviors, such as external representation, being vocal advocates to outsiders of the organization's image, goods, and services, internal influence, taking individual initiative in communications to the firm and co-workers to improve service delivery by the organization, co-workers, and oneself, and service delivery, serving customers in a conscientious, responsive, flexible, and courteous manner. However, there is lack of study dealing with bourdary spanning behaviors bewteen organizational dyads, in which boundary spanning behaviors are expected to have important roles. The objectives of this paper is to investigate these important concerns with prior research by developing a theoretical model predicting how distinct buyer's boundary spanning behaviors occur. To be concrete, this paper develops a seller characteristics-based model of the attitudinal antecedents of three conceptually distinct forms of boundary spanning behaviors, and tests the hypothesized differential effects of seller characteristics on the three forms of boundary spanning behaviors, and investigates the extent to which these relationships are mediated by relationship satisfaction and organizational commitment. For the purpose of empirical testing, 420 respondents of leading automobile dealers, dining franchisees, industrial material retailers in Korea were surveyed and the analysis utilizing structural equation model indicated that communication quality, fairness, and marketing program dynamism had positive effects on buyer's boundary spanning behaviors via relationship satisfaction and organizational commitment. In addition, boundary spanning behaviors occurred more in contractural and corporate distribution channel than in conventional distribution channel.

유통경로 구성원 간 고객지향적 영역초월행동의 선행변수에 관한 연구

김상덕(Sang Deok Kim) 한국경영학회 2008 經營學硏究 Vol.37 No.4

Recently, scholars of marketing channels are interested in customer oriented boundary spanning behaviors which mainly have been dealt in field of organizational behaviors. Boundary spanning is the activity by which individuals within organizations bridge external needs and provide information for internal users. In the context of this study. the author is interested in customer oriented boundary spanning behaviors(COBSB). COBSB are likely to be considered relatively more role-prescribed and those that are likely to be considered relatively more extra roles. such as. external representations. being vocal advocates to outsiders of the organization's image. goods. and services. internal influence. taking individual initiative in communications to the firm and co-workers. and oneself. and service delivery. serving customers in a conscientious. responsive. flexible. and courteous manner. However. previous empirical researches mainly have dealt with COBSB in the context of service industry focusing on the behaviors of frontline service employees. Few researches have interested in COBSB between distribution channel members, which makes scholars focus on service employee related antecedents of COBSB, such as, role stress and fairness perception. The lack of studies dealing with COBSB between distribution channel members make it difficult to understand the link between COBSB and a lot of interorganizational variables. such as. trust, commitment. dependence. transaction specific investment. opportunism, and relational norms. Hence this study try to deal with COBSB in the context of distribution channels and to test of a interorganizational model of antecedents. In short. the author proposes and tests the links between COBSB and six interorganizational constructs derived from four theoretical perspectives: (1) commitment-trust. (2) dependence. (3) transaction cost economics. and (4) relational norms. Each perspective specifies a different set and distinct causal ordering of focal constructs as the most critical for understanding interorganizational behaviors. For the purpose of empirical testing. the research was asked to professional research organization. By requesting H company which is having the most panels in distribution industry. 320 copies of questionnaires were collected during two months from December. 2007. The respondents were composed of three categories of retailers: (1) 100 of corporate retailers (sales agencies), (2) 120 of contractual retailers (franchisees), and (3) 100 of conventional retailers in Seoul. They were asked to respond to the survey via face-to-face interview conducted by a professional research company and were restricted to direct dealing authorities and manager with at least three months of dealing experience with suppliers. Data were collected through a key informant technique. The use of key informants in evaluating firm activities is consistent with prior study should not threaten measurement validity. The statistical characteristics of these 320 respondents came to the conclusion that were adequate for analysis. The analysis using path analysis indicated that trust. commitment of buyers had positive effects on COBSB. And Opportunism of suppliers had contrary effects on them. However. dependence. relational norms. and transaction specific investment affected them partially.

비대칭적 의존구조는 언제나 관계의 질을 약화시키는가 ?

김상덕(Sang Deok Kim),정연승(YeonSung Jung) 한국서비스경영학회 2008 한국서비스경영학회 학술대회 Vol.2008 No.5

동축반전 헬리콥터형 소형 무인항공기 설계 및 제작

김상덕(Sang-Deok Kim),변영섭(Young-Seop Byun),송준범(Jun-Beom Song),이병언(Byoung-Eon Lee),송우진(Woo-Jin Song),김정(Jeong Kim),강범수(Beom-Soo Kang) 한국항공우주학회 2009 韓國航空宇宙學會誌 Vol.37 No.3

근거리 감시정찰을 수행할 수 있는 헬리콥터형 무인항공기를 개발하였다. 임무수행 가능성을 검토한 결과 전동 모터로 구동되는 동축반전 헬리콥터형 비행체가 선정되었다. 자동비행을 위해 상용 자동비행장치와 무선통신 모뎀이 채택되었고, 공중촬영을 위한 CCD카메라가 탑재되었다. 완성된 비행체는 수동 비행시험을 통해 성능을 검증하였으며, 자동비행장치 탑재 후 점항법 비행을 통해 임무수행이 가능함을 확인하였다. 본 논문에서는 동축반전 무인항공기의 개발을 위한 설계 및 체계종합 전 과정에 관하여 기술하였다. The rotorcraft-based unmanned aerial vehicle(UAV) capable of performing close-range surveillance and reconnaissance has been developed. Trade studies on mission feasibility led to the adoption of a coaxial rotorcraft with twin rotors counter-rotating in one axis and driven by electric motors. A commercial off-the-shelf flight control computer(FCC) and a radio frequency modem were adopted for autonomous navigation. In order to achieve an aerial view, commercial charge-coupled device camera was also integrated into the vehicle. The performance of the completed vehicle was proved with manual flight test, and mission capability was verified through waypoint navigation flight after being equipped with FCC. This paper treats the whole process of design and system integration for development of the coaxial rotorcraft UAV.

프랜차이즈 본부의 의사소통 전략이 가맹점의 결속과 매출에 미치는 영향

김상덕(Sang Deok Kim) 한국서비스경영학회 2005 한국서비스경영학회 학술대회 Vol.2005 No.11

비대칭적 의존구조는 언제나 관계의 질을 약화시키는가? 커뮤니케이션의 역할

김상덕(Kim, Sang Deok),정연승(Jung, Yeon Sung) 한국서비스경영학회 2008 서비스경영학회지 Vol.9 No.2

시간도래기반 실내 무선측위 시스템을 위한 향상된 위치인식 알고리즘

김상덕 ( Sang-deok Kim ),김종식 ( Jongsik Kim ),김현술 ( Hyun Sool Kim ),이태석 ( Tae Seok Lee ) 조선대학교 공학기술연구원 2017 공학기술논문지 Vol.10 No.2

We propose a improved localization algorithm for indoor wireless TOA-based localization system. The purpose of the wireless localization system is how to reduce localization error not only in line-of-sight(LOS) but also in non-line-of-sight(NLOS), For reducing localization error, many approaches have been researched. In this paper, we proposed a new approach for reducing localization error. At the same environment, ranging results are not always same. Some factors have an effect on signal propagation and we called these factors biases. We proposed a new method which uses these biases. The simulation results show that a new method makes smaller overlapped area than conventional method and lead to reduce localization error.