물류 배송용 드론의 몽골 현지 혹한기 비행 시험

박종우(Jong-Woo Park),권혁민(Hyeok-Min Kwon),천혜진(Hye-Jin Cheon),조재성(Jae-Seong Jo),이준수(Jun-Su Lee),김건홍(Geon-Hong Kim) 한국항공우주학회 2024 한국항공우주학회 학술발표회 논문집 Vol.2024 No.4

고중량 무인비행체용 60인치급 프로펠러 성능에 관한 수치해석적 연구

박종우(J.W. Park),천혜진(H.J. Cheon),권혁민(H. M. Kwon),조재성(J. S. Jo),김건홍(G.H. Kim) 한국전산유체공학회 2023 한국전산유체공학회 학술대회논문집 Vol.2023 No.10

전장관리정보시스템 품질이 운영성과에 미치는 영향에 관한 연구 : 지각된 유용성 및 사용자 만족의 역할

정영신,박종우,조동혁,Jeong, Young Sin,Park, Jong Woo,Jo, Dong Hyuk 한국군사과학기술학회 2016 한국군사과학기술학회지 Vol.19 No.2

The need and interest for a successful operation of Information System in the defense industry have increased due to a rapid development in ICT. However, research on adderssing such increased demand has been minimal. This paper introduces a Success Model for IS in the defense field based on literature reviews, and proves the performance of the proposed model. The verification results show that the quality factors of IS have positive influence on perceived usefulness and user satisfaction. The results, as well, imply that perceived usefulness and user satisfaction improves the operational performance of IS. Therefore, this study proves that quality factors of IS increase the operational performance through perceived usefulness and user satisfaction. Through this research, the patterns of information utilization in the defense IS is understood, and the directions for improving the operational performance of IS is presented.

DS-CDMA용 개선된 PN 코드 포착 시스템의 ASIC 설계

조병록,박종우,Jo, Byeong-Rok,Park, Jong-U 한국정보처리학회 2002 정보처리학회논문지D Vol.9 No.1

PN 코드 포착 과정에서 기존의 방식은 한 시점에서 PN 코드를 검색하므로 PN 코드 포착시간에서 문제가 있다. 본 논문에서는 서로 다른 2개의 코드시점에서 PN 코드를 검색하므로 PN 코드 포착시간을 줄일 수 있는 알고리즘을 제안한다. 본 논문에서는 새롭게 제안한 알고리즘으로 ASIC 칩을 설계하였다. 제안한 알고리즘을 이용하여 설계한 ASIC 칩은 기존의 PN 코드 포착과정보다 면적(게이트의 수)은 약간 늘어났지만 PN 코드포착의 성능은 기존의 방법보다 더 좋음을 확인했다. The existing method in PN code acquisition process have a problem in PN code acquisition time because PN code searching is accomplished in one epoch. In this paper, we propose algorithm that can reduce PN code acquisition time because PN code searching is accomplished in each other two epoches. The designed ASIC chip using proposed algorithm confirmed that the area (the number of gates) increase more than existing method in PN code acquisition, but the performance of PN code acquisition is better than existing method.

샘플치 시스템의 루프정형 2자유도 H_{\infty}디지털 제어기 설계

이상철,박종우,조도현,이종용,이상효,Lee, Sang-Cheol,Park, Jong-U,Jo, Do-Hyeon,Lee, Jong-Yong,Lee, Sang-Hyo 대한전기학회 2000 전기학회논문지 D Vol.49 No.9

In this paper we propose a design procedure of loop-shaping two-degree-of-freedom H$\infty$ digital controller for sampled-data system. We extend the continuous time loop-shaping two-degree-of-freedom H$\infty$ control problem to sampled-data system. The configuration of generalized plant is modified for sampled-data system. And then using continuous lifting we obtain the digital controller. In the final stage of loop-shaping procedure the problem of absorbing weighting functions is discussed. We summarize this study to the design procedure and illustrate the application for an inverted pendulum on the cart.

프로펠러 특성에 따른 멀티콥터형 무인비행체의 추력 및 동특성 분석

김건홍(Geonhong kim),박종우(Jongwoo Park),권혁민(Hyeokmin Kwon),조재성(Jaeseong Jo) 한국항공우주학회 2023 한국항공우주학회 학술발표회 논문집 Vol.2023 No.4

모바일 메신저 서비스의 지각된 가치, 사용-확산 그리고 충성도 간의 관계에 대한 연구

조동혁(Dong-Hyuk Jo),박종우(Jong-Woo Park),전현재(Hyun-Jae Chun) 한국지능정보시스템학회 2011 한국지능정보시스템학회 학술대회논문집 Vol.2011 No.12

스마트폰의 대중화와 함께 모바일 메신저 서비스는 모바일 시장의 중요한 키워드로 부상하고 있다. 갈수록 경쟁이 심화되고 있는 모바일 메신저 시장에서 고객 충성도 제고는 기업 비즈니스 생존을 위한 열쇠이자, 기업 마케팅 전략의 목표 일 것이다. 이에 본 연구는 모바일 메신저 서비스 수용 후 발생되는 지각된 고객가치, 사용-확산 그리고 충성도간에 어떠한 영향을 미치는지를 알아보고, 연구 결과를 통해 모바일 메신저 서비스 고객 확보 및 충성도 제고를 위한 시사점을 제공하고자 하는 것이 연구의 주목적이라 할 수 있다. 연구결과, 지각된 가치는 서비스 사용량에 영향을 미친다는 결과가 나타났다. 또한 사용량은 지속적 사용의도와 타인 추천의도에 영향을 미치며, 사용 다양성은 타인 추천의도에 영향을 미치는 것으로 나타났다. 한편, 지각된 가치는 지속적 사용의도와 타인 추천의도에 영향을 미치며, 브랜드 전환의도의 경우 사회적 가치 요인만이 브랜드 전환의도에 영향을 미치는 것으로 나타났다. 연구결과에 따른 시사점으로 서비스 제공자는 모바일 메신저 서비스 사용을 확산시키고 지속적인 사용을 촉진하기 위하여 첫째, 사용자들의 서비스 사용과 연결된 지각된 가치에 대한 인식을 고취시킬 필요가 있으며, 둘째, 서비스의 충성도에 영향을 미치는 사용-확산 패턴이 다름을 인식하고, 충성도를 제고 할 수 있는 사용자의 사용-확산 전략을 수립 할 필요성이 있다. 마지막으로, 사용자가 경쟁적인 대안에서 충족시킬 수 있는 고객가치 요인이 무엇인지 분석하여 고객 충성도를 높이고 관계를 지속해나갈 수 있는 방법을 모색해야 할 것이다. Mobile instant messaging service is surfacing to an important keyword in the mobile market together with popularization of Smart phones. Mobile instant messaging service in Korea has become popular to the degree of 87.9% usages from total Smartphone holders, and it is expected that using populations will be more enlarged afterwards if considering a fact that its populations of Smartphone is continuously being increased after exceeding 10 million persons (Trend Monitor, June 2011). In the instant messaging market where competitions have been deepened day by day, raising customer‟s royalties will be the key for company‟s business survivals and goals of corporate marketing strategies. It could be said that understanding on which factors affect to customer retentions and royalties is very important. Specially, as changing status is being progressed very quickly in case of innovative mobile services like the instant messaging service, research necessities on how many do consumers use the services after accepting them, how much do consumers use them variously, and whether does it connect to long-term relations have been increased, but studies on such matters are in insufficient situations actually. Therefore, this study examined on which effects were affected to use-diffusion and loyalty factors from perceived customer vales‟ factors having been occurred after accepting the mobile instant messaging service, namely „functional value,‟ „monetary value,‟ „emotional value,‟ and „social value‟. Also, the study looked into what kind of roles do the service usage and using variety play to service‟s continued using intents as a loyalty index, recommending intents to others, and brand switching intents. And then the study laid the main purpose in trying to provide implications for enhancing customer securities and royalties on the mobile instant messaging service through research‟s results. The research hypotheses are as follows; H1. Perceived values will affect influences to royalties. H2. Use-Diffusion will affect influences to loyalty. H3. Perceived value will affect influences to loyalty. H4. The use-diffusion will play intermediating roles between perceived values and loyalty. Total 276 cases among collected 284 ones were used for the statistical analysis by SPSS ver. 15 package. Reliability, Factor analysis, regression were done. As the result of research, „monetary value‟ and „emotional value‟ affected to „usage‟ among perceived value factors, and „emotional value‟ was appeared as affecting the largest influence. Besides, the usage affected to constant-using intents and recommending intents to others, and using varieties were displayed as affecting to recommending intents to others. On the other hand, „Using‟ and „Using diversity‟ were appeared as not affecting to „brand switching intentions‟. Meanwhile, as the result of recognizing about effects of perceived values on the loyalty, it was appeared such like „continued using intents‟ affected to „functional value,‟ „monetary value,‟ and „social value‟ first, and also „monetary value,‟ „emotional value,‟ and „social value‟ affected to „recommending intents to others.‟ On the other hand, it was shown such like only „social value‟ affected influences to „brand switching intents,‟ and thus contrary results with the factor „constant-using intents‟ were displayed. So, it seems that there are many applications to service provides who are worrying about marketing strategies for making consumer retains (constant-using) and new consumer‟s inductions (brand-switching intents). Finally, as a result of looking into intermediating roles of the use-diffusion factor in relations between conceived values and royalties at hypothesis 4, „using‟ and „using diversity‟ were displayed as affecting significant influences all together. Regarding to research result‟s implications, for expanding and promoting continued uses of the mobile instant mess

AHP분석을 활용한 비즈니스모델 구성요인의 상대적 중요도 연구

최성호(Seong-Ho Choi),박종우(Jong-Woo Park),조동혁(Dong-Hyuk Jo) 한국콘텐츠학회 2016 한국콘텐츠학회논문지 Vol.16 No.7

본 연구는 지식서비스기업의 경영성과 영향 요인을 규명하고자 AHP 분석 방법론을 활용하여 지식서비스 비즈니스 모델 구성요인 간의 상대적 중요도를 도출하고 기존 제조업을 대상으로 한 선행연구 결과와 비교분석하였다. 연구결과, 지식서비스기업 비즈니스모델의 상위요인들의 상대적 중요도는 제품/서비스(0.361), 마케팅(0.251), 재정능력(0.234), 인프라(0.154)순으로 나타났으며, 하위요인들의 상대적 중요도는 가치제안(0.254), 수익원(0.154), 핵심활동(0.107), 핵심자원(0.100), 채널(0.086) 순으로 나타났다. 또한, 제조업에서는 마케팅이 상대적 중요도가 높은데 반해 지식서비스업에서는 제품/서비스로 나타나 산업특성간의 상대적 중요도가 다르다는 것을 확인할 수 있었다. 본 연구는 산업특성별 비즈니스모델 구성요인의 중요도가 다름을 인식하고 산업별 특성을 고려하여 비즈니스모델을 수립하는데 유용한 시사점을 제공한다. This study analyzed relative importance among business model factors for improving business performance of Knowledge Service Enterprises using the Business Model methodology. It also compares and analyzes the relative importance of manufacturing enterprises by using the previous research conclusion. This study finds Product & Service factor(0.361) is the most important among Marketing(0.251), Financial aspects(0.234), and Infrastructure(0.154) are follows. For the sub factors, Value Proposition(0.254) is the most importance factors and Revenue Streams(0.154), and Key Activities(0.107), and Key Resources(0.100), and Channels(0.086) are follows. Also, The Marketing has higher relative importance for Manufacturing enterprises, whereas the Product&Service has higher relative importance for Knowledge Service Enterprises. It proves that there is a difference in the relative importance between Manufacturing Enterprises and Knowledge Service Enterprises. This study concludes the importance of business model factor is different for each respective industry. Therefore, it suggests to consider different industrial aspects when build the business model for each industry.

미용 산업에서 리더-구성원 교환관계(LMX)가 조직몰입에 미치는 영향에 관한 연구: 헤어샵 종사자들을 대상으로

조현정 ( Hyun Jung Jo ),박종우 ( Jong Woo Park ) 한국미용학회 2016 한국미용학회지 Vol.22 No.3

Efficient human resource management is essential to the beauty industry, as it is keep growing and becoming one of the typical service industries. In the beauty industry, by effort of efficient operation of organization, the importance of the cooperative relationship is gradually standing out, and leader-membership exchange (LMX), that consists mutual partnership, has been studied in many fields; however, studies about the beauty industry is hard to be found. Therefore, in this research, I surveyed from July 21st, 2015 to July 30th, 2015 on hair salons, which have largest employees in the beauty industry (Data from National Statistical Office, 2014), about effect of job satisfaction, self-efficacy and organizational commitment on leader-member exchange (LMX). By using SPSS 23, analysis of frequency, primary factor, reliability and regression have been proceeded. As a result, LMX indicated it has positive effect on job satisfaction, self-efficacy and organizational commitment. Also, job satisfaction and self-efficacy have positive effect on organizational commitment, and they are the intermediary between LMX and organizational commitment. Based on the result of the research, I want to propose new human resource management model and plan to increase organization commitment for the beauty industry, thereby expecting this research to be utilized as basic data for strengthening organization in the beauty industry.

공유경제 서비스의 성공요인에 관한 실증 연구

김해중(Hae-Joong Kim),박종우(Jong-woo Park),조동혁(Dong-hyuk Jo) 한국콘텐츠학회 2016 한국콘텐츠학회논문지 Vol.16 No.1

금융위기 이후 경제성장의 정체, 친환경 트렌드의 부상, 스마트폰의 대중화를 배경으로 등장한 공유경제는 불필요한 소비를 줄이고 자원 활용도를 높여 초연결 시대, 소비자 효용 증대 측면에서 주목받고 있다. 따라서 본 연구는 공유경제 서비스의 성공을 서비스 수용 후 지속적 사용으로 규정하고 서비스 이용 경험에서 지속 이용에 영향을 미치는 요인과 그 요인 간 인과적 관계를 실증적으로 검증하였다. 연구결과, 지각된 가치와 네트워크 외부성은 신뢰 및 만족에 모두 유의한 영향을 미치고, 지각된 위험은 신뢰에 유의한 영향을 미치는 것으로 나타났다. 또한 신뢰는 만족과 지속이용의도에 모두 유의한 영향을 미치고, 만족 또한 지속이용의도에 유의한 영향을 미치는 것으로 나타났다. 그리고 지각된 가치와 위험, 그리고 네트워크 외부성은 신뢰와 만족을 매개하여 지속이용의도에 유의한 영향을 미치는 것으로 나타났다. 본 연구를 통하여 최근 그 중요성이 강조되고 있는 공유경제 서비스의 성공 요인과 요인 간 구조적 관계를 확인함으로써 불확실한 경영환경 속에서 공유경제 서비스의 경쟁력을 제고 할 수 있는 계기를 제공하고자 한다. Since financial crisis, sharing economy emerged as a result of economic stagnation, emerging environmental-friendly trend and increasing smartphone penetration, which led to reducing unnecessary consumption and increasing the practical usage of resources. This indicates the possibility that the sharing economy service will develop in this hyperconnectivity era in terms of increasing consumer utility. In this study, the author, therefore, empirically analyzed the factors that affect the continuous usage from the experience of service use and the causal relationship between the factors by regulating the success of sharing economy service as the continuous use after the acceptance of service. The findings demonstrated that the perceived value and network externality had a significant effect on both trust and satisfaction, and the perceived risk had a significant effect on trust. In addition, trust affected both satisfaction and continuous use intention significantly, and satisfaction also had a significant effect on continuous use intention. And the perceived value and risk, and network externality mediated trust and satisfaction, thereby having a significant effect on continuous use intention. Through this research, the author intends to provide an opportunity to enhance the competitiveness of sharing economy service under an uncertain business environment by way of identifying the success factors of the sharing economy service whose important is growing in recently years and the structural relationship between these factors.