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중소 운수업체의 ERP 도입요인이 내부성과에 미치는 영향
김종주(Jong-Ju Kim),이선규(Seon-Gyu Yi) 한국정보기술학회 2014 한국정보기술학회논문지 Vol.12 No.4
This study analyzed the antecedent factors of ERP introduction performance for small & medium transportation companies. The CEOs support, education/training, users IT ability, business process standardization, IT infrastructure, etc. were set as antecedent variables of ERP introduction through precedent studies. And with regard to the introduction performance variable, internal performance that was non-financial performance was set as a dependent variable in consideration of the characteristics of companies, because the objects of this study were small & medium transportation companies. A validity analysis and reliability analysis of measured variables was made. And a regression analysis was made for hypothesis test. The analysis results showed that the chief executive officers support, education/training, users IT ability, and business process standardization/formalization set as the antecedent factors of ERP package introduction had a positive effect on the internal performance. However, it was shown that IT infrastructure didnt have positive effect on the internal performance.
모래밭 버섯균과 Glomus 균근균의 (菌根菌) 인공접종이 연령이 다른 상수리나무에서 채취한 삽수의 (揷穗) 삽목발근에 (揷木發根) 미치는 영향
김종주(Jong Ju Kim),이경준(Kyung Joon Lee) 한국산림과학회 1990 한국산림과학회지 Vol.79 No.3
This study was conducted to determine the effects of mycorrhizal inoculation and ortet ages on the rooting of Quercus acutissima cuttings. The cuttings taken from 12-week-, 2-year-, 4-year-, and 20-year-old plants were rooted in mid summer in the rooting medium (vermiculite 2 : peatmoss 1 by volume) with or without Pisolithus tinctorius (Pt) and Glomus sp. inocula and IBA under intermittent misting system in an open shed. The average percentages of rooting were about 82%, 49%, 29%a, and 13% for cuttings taken from 12-week-, 2-year-. 4-5`ear-, and 20-year-old seedlings, respectively. Pt inoculation, enhanced rooting of cuttings at all age classes, except 12-week-old seedlings, with the highest enhancement(22%) observed in cuttings taken from 20-year-old trees. The highest percentage of rooting in each age group eras 88.9% in 12-week-old seedlings treated with Pt plus 3.000ppm IBA, 75% in 2-Year-old plants with 1,000ppm IBA, 58.3% in 4-year-old plants with 3.000ppm IBA and 22% in 20-year-old plants. The addition of Glomus sp. fungus inoculum failed to enhance rooting. Pt mycorrhizal inoculation enhanced root dry weight, length, and diamter of adventitious roots at cuttings taken from 12-week- and 20-year-old trees, except the cuttings taken from 4-year-old seedlings. Rooted cuttings had more total nitrogen content in the leaves than unrooted cuttings, and the greater rooting response was associated with the higher phosphorus content in the leaves.
김종주(Jong-Ju Kim),유준(Joon Lyou) 한국항공우주학회 2008 韓國航空宇宙學會誌 Vol.36 No.7
본 논문에서는 유도탄 응답지연을 고려한 실용적인 유도법칙을 제시한다. 유도탄의 속도벡터 방향을 조종할 수 있는 자세제어방식 autopilot을 갖는 유도탄을 고려하고, 최적제어이론을 적용하여 유도탄 응답특성에 따른 여러 가지 최적유도법칙을 유도할 수 있었으며, 실제적용 시의 문제점을 고려한 효율적인 유도법칙을 제안한다. In this study a practical guidance law for missile guidance loop is established by considering the missile dynamics. Assuming the attitude controlled missile, several optimal guidance laws according to missile dynamical characteristics are derived by applying the optimal control theory and an effective guidance law in practical point is presented.
김종주(Jong ju Kim),문희성(Hee sung Moon) 대한전기학회 1967 전기의 세계 Vol.16 No.1
Indigenous energy resources available in Korea are limited to the three major resources such as Korean anthracite, hydraulic potential and wood and straws. As reported in various reports concerning energy problem in Korea, unfortunately these three major resources are not only poor in quality but also limited in quantity. The amount of energy to be imported, which will be increased at a considerably high rate by years due to the shortage in the supply by domertic sources against the demand, is studied in the view-pint of sound and logical energy dependence upon the external sources. What would occur, if the imported energy would be exclusively limited to an energy source only, has an enough reason to be paid a significant consideration. As a result, the feasibility is discarded in favour of nuclear power plants after an extensive prospect for electric power development plan covering more than coming thirty years, i.e., up to the year of 2,000 A.D. In briefing, this paper indicates that a measures to accomodate as large amount of nuclear power plants as possible in the electric power system is not only inevitable for a sound solution of the severe energy problem with which Korea is to be confronted but also leads to the national benefit.
전략의 적합성요인이 ERP 도입요인과 내부성과 간에 미치는 조절적 역할
김종주(Jong-Ju Kim),이선규(Seon-Gyu Yi) 한국콘텐츠학회 2015 한국콘텐츠학회논문지 Vol.15 No.2
본 연구는 국내의 중소 운수업체를 대상으로 하여 기업의 전략과 정보시스템 전략의 적합성 요인이 ERP 내부 성과에 조절적인 역할을 하는지를 분석하였다. 분석결과, 기업의 전략과 정보시스템 전략의 적합성 요인은 ERP 도입요인과 내부성과 간에 조절적 역할을 하고 있는 것으로 분석되었다. 즉, 기업의 전략과 정보시스템 전략의 적합성 요인은 독립변수로 설정된 최고경영자의 지원, 교육/훈련, 사용자 IT 역량, 업무표준화/공식화, 정보기술 기반구조와 내부성과 간에 조절적인 역할을 하는 것으로 분석되었다. 위와 같은 분석결과에 따라 본 연구에서는 국내 중소 운수업체에서는 ERP 패키지를 도입할 경우, 기업 내부적으로 기업의 전략과 ERP 패키지 도입 전략이 적절하게 조화를 이룰 때 도입성과가 극대화 될 것이라는 연구결과를 얻을 수 있었다. This study analyzed the moderating role of the suitability factors of corporate strategies and information system strategies targeting small and medium sized transportation companies in Korea. The analytical result has found that the suitable factors of corporate strategies and information system strategies play the moderating role in the ERP introduction factors and internal performance. In other words, the suitability factors of corporate strategies and information system strategies were analyzed to play the moderating role in support of CEOs, education/training, users’ IT capabilities, standardization/formulation of business, infrastructure of information technologies, and internal performance. The result of this study based on the above analytical results has found that introduction performance will be maximized when ERP packages are introduced in the small and medium-sized transportation companies and corporate strategies properly harmonize with the introduction strategies of ERP packages in the companies.
김종주(Jong-Ju Kim),유준(Joon Lyou) 한국항공우주학회 2008 韓國航空宇宙學會誌 Vol.36 No.3
본 논문에서는 적분비례항법 유도방식을 사용하는 유도탄 유도루프에 대한 안정된 시간 영역을 유도하였다. 고려된 유도탄 유도루프는 한 개의 선형 시불변요소와 시변 궤환이득으로 구성된 제어시스템으로 형식화될 수 있다. Circle criterion 을 적용함으로써 안정성이 보장되는 비행 잔여시간에 대한 한계치를 총 비행시간의 함수로 유도할 수 있었으며, Popov criterion 을 통해 얻는 결과에 비해 덜 보수적인 결과를 얻었다. In this paper, the stable region for missile guidance loop employing an integrated proportional navigation guidance law is derived. The missile guidance loop is formulated as a closed-loop control system consisting of a linear time-invariant feed-forward block and a time-varying feedback gain. By applying the circle criterion to the system, a bound for the time of £light up to which stability can be assured is established as functions of flight time. Less conservative results, as compared to the result by Popov criterion, are obtained.