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.

비대칭적 의존구조는 언제나 관계의 질을 약화시키는가 ?

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

비대칭적 의존구조는 언제나 관계의 질을 약화시키는가? 커뮤니케이션의 역할

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

유통경로 내 구매자와 판매자 간 정보공유의 촉진요인과 억제 요인

김상덕 ( Sang Deok Kim ) 한국지식경영학회 2009 지식경영연구 Vol.10 No.2

프랜차이즈 본부의 의사소통 전략이 가맹점의 결속과 매출에 미치는 영향

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

가락시장 출하경로에 관한 연구-상장과 상장예외품목 비교 분석-

김상덕 ( Kim Sang-deok ),양승룡 ( Yang Seung-ryong ) 한국식품유통학회 2016 食品流通硏究 Vol.33 No.4

This study sheds light on supply channels between an auction system and an unlisted transaction for agricultural products in Garak market. It contains the introduction and operational conditions of the unlisted transaction, analysis for the ratio of an auction system to an unlisted transaction and price analysis between an auction and unlisted transaction. Since the unlisted transaction was introduced in 1994, the range of application has been extended gradually. However, recently the ratio of auction system to unlisted transaction has been increased distinctly in many items. First, this study carried out a survey on the reason of choosing supply channels targeting farmers who grow sweet potatoes and cabbage lettuces. The survey reveals that the unlisted transaction needs payment speed, fairness and transparency compared to the auction system. Second, price analysis using several tests between an auction and unlisted transaction indicates information opacity of the unlisted transaction. Therefore the system construction of upgrading the information transparency is suggested to solve the problems.

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.