• 지식경영연구
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• 제21권4호
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• pp.109-127
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• 2020

본 연구는 정보탐색이 신제품개발 과정과 성과에 미치는 영향을 검증하기 위해 5개 기업의 82개 신제품개발과제에 대한 실증조사를 진행하였다. 정보탐색은 일반정보, 내부정보와 외부정보에 대한 탐색으로 구분하였고, 신제품개발과제의 성과는 기술성과와 시장성과로 구분하였다. 본 연구의 실증결과는 다음과 같다. 내부정보 탐색은 신제품개발과제의 기술지식을 증가시키고, 외부정보 탐색은 신제품개발과제의 시장지식을 증가시켰다. 신제품개발과제의 기술지식과 시장지식은 각각 기술성과를 향상시키고, 시장지식만이 시장성과를 향상시켰다. 전체적으로 신제품개발과제의 기술지식은 내부정보 탐색과 기술성과간의 관계를 완전 매개하였다. 신제품개발과제의 시장지식은 외부정보 탐색과 기술성과간의 관계를 완전 매개하고, 외부정보 탐색과 시장성과간의 관계를 완전 매개하였다. 기술지식 혹은 시장지식은 여기 언급된 조합 이외에 정보 탐색과 신제품개발 성과간의 어떤 관계도 매개하지 않았다. 연구결과에 대한 시사점과 향후 연구방향에 대해 논의하였다.

• 한국전자거래학회지
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• 제21권3호
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• pp.129-151
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• 2016

본 연구는 PMO(Project Management Office)가 도입된 IT 프로젝트 경험자를 대상으로, 내 외부 PMO의 역량과 프로젝트 성과 간의 관계에 있어 조직공정성을 매개변수로 하여 영향 관계를 파악한 연구이다. 연구결과, 내부 PMO 역량은 절차공정성과 분배공정성뿐만 아니라 프로젝트 성과와도 직접적 관련이 있는 것으로 나타났다. 반면 외부 PMO 역량은 절차공정성에만 관련이 있고, 프로젝트 성과와는 관련이 없는 것으로 분석되었다. 또한 절차공정성과 분배공정성은 모두 프로젝트 성과와 관련이 있는 것으로 확인됐다. 일반적으로 조직 내부에서는 프로젝트 관리역량을 충분히 갖추고 있음에도 불구하고, 프로젝트 관리의 공정성 객관성을 위해 외부 전문 컨설팅 기관의 역량을 도입한다. 그러나 절차공정성에 대한 검정통계량값의 경우, 내부 PMO 역량이 외부 PMO 역량에 비해 상대적으로 높고 유의성이 있는 것으로 드러났다. 또한 내부 PMO 역량만이 분배공정성과 프로젝트 성과에 직접적 상관성을 가지는 것으로 나타났다. 본 연구는 내 외부 PMO 활동 수행에 필요한 인적 역량을 도출하는데 그 지표가 될 것이며, 내 외부 PMO 도입을 통한 프로젝트 관리 전략을 세우는데 기반을 마련했다는데 의의가 있다.

• 대한기계학회논문집A
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• 제28권8호
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• pp.1152-1158
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• 2004

In this study a MRAC(model reference adaptive control) for fluid power elevator model system was designed. The MRAC was compared with PI control in case of applying to the elevator model system with constant external load and changing external load. In this case external load was produced by a single fluid power cylinder combined with pressure control valve. In conclusion the MRAC control performance was better than PI control performance because overshoot and steady state error of the elevator model system controlled by the MRAC were not appeared for constant and changing external load.

• 벤처창업연구
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• 제7권1호
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• pp.87-97
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• 2012

본 연구는 준고령자의 직업능력을 향상시키기 위하여 추진하고 있는 준고령자들의 기존 직업능력개발훈련 실태와 효과를 분석하고, 직업능력개발욕구를 조사하여 사회복지 영역에서 적용 가능한 시사점과 활성화 방안을 제시하고자 하였다. 직업능력개발훈련 실태를 분석한 결과를 요약하면 준고령자의 56.5%가 직업능력개발훈련을 받은 경험이 있고, 훈련을 받는 이유로는 여가선용이 주된 이유였다. 훈련을 제공받는 곳은 인정훈련기관이 많았고, 훈련내용으로는 실무 기능습득교육이 주를 이루었으며, 직업능력개발훈련과 관련하여 대부분이 전혀 비용을 부담하지 않았다. 85.2%가 훈련에 관한 정보를 주변 사람 등 제한된 경로를 통해 얻고 있으며, 훈련 후 취업지도가 매우 미흡한 것으로 나타났다. 욕구를 분석한 결과 대부분은 직업능력개발훈련을 매우 필요로 하고 있으며, 직업능력개발훈련이 필요한 가장 근본적인 이유로는 직업능력 향상이 가장 많았다. 이에 정책 대안으로는 준고령자 직업능력개발을 위한 법제도 개선이 필요하고, 준고령자 직업훈련원의 설립하는 등 연구기관의 설립, 훈련실시기관의 담당자와 정책담당자 등의 전문 인력 양성, 훈련 대상자별 특성에 맞는 적절한 프로그램개발 및 운영, 홍보강화 및 참여촉진, 직업능력개발훈련을 실시한 후에는 훈련수료자들이 전원 취업할 수 있도록 철저한 사후관리 및 재교육이 필요하다.

• 한국자동차공학회논문집
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• 제4권6호
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• pp.39-51
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• 1996

In the turning maneuver of the vehicle, its motion is mainly dependent on the genuine steering characteristics in view of the directional stability for stable turning ability. The under steer vehicle has an ability to maintain its own directonal performance for unknown external disturbances to some extent. From a few years ago, in order to acquire the more enhanced handling performance, some types of four wheel steering vehicle were considered and constructed. And, various rear wheel control logics for external disturbances has not been suggested. For this reason, in this posed rear wheel control logic is based on the yaw rate feed back type and is slightly modified by an yaw rate tuning factor for more stable turning performance. And an external disturbance is defined as a motivation of the additional yaw rate in the center of gravity by an uncertain input. In this study, an external disturbance is applied to the vehicle as a form of the additional yawing moment. Finally, the proposed rear wheel control logic is tested on the multi-body analysis software(ADAMS). J-turn and double lane change test are performed for the validation of the control logic.

• 보건의료산업학회지
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• 제6권4호
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• pp.153-163
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• 2012

The purpose of this study is to measure IPA(Importance Performance Analysis) of the hospital choice factors between internal and external customers at rural general hospital. This study was used 5 types of choice factor such as physical, human, accessibility, connection, and external image. Also, this study was used IPA which can be applied to identify the strengths and weaknesses quality attributes from customers' viewpoint by simultaneously evaluating importance and performance. IPA was assessed using a sample of 98 patients and 96 internal employees who work at C general hospital in Chunkcheongbuk-do. Data were collected with self-administered questionnaires from February 13 to March 30 in 2012 and analyzed SPSS 18 by using frequency, paired t-test and scatter plot graph. The results of IPA show that "Keep up the good work" quadrant was human factor and "Low Priority" quadrant was physical and connection factors between internal and external customers. The finding of this study will be applied to improve human service quality in administrative department of hospital. Also, this study presents primary data for correct decision making to authorities of local hospitals that have concern about hospital strategy. The implications of this study are discussed and areas for future research are presented.

• Journal of Information Technology Applications and Management
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• 제27권4호
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• pp.1-19
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• 2020

Infringement of information security has caused the corporate image to be damaged and share price to fall, and it is emerging as an organizational risk. The value of information assets in enterprises has led to a higher level of security than in the past. As a result, companies are aware of the need for officers to protect information and to oversee a security management system. However, despite the growing importance of information security officers, there is a lack of research on their roles and characteristics. This study validates the relationship between determinants that affect the performance of information security. And a structural equation model was presented and empirically analyzed to see the impact of the internal and external characteristics of the staff in charge of information security on the organization's information security performance.

• International Journal of Naval Architecture and Ocean Engineering
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• 제13권1호
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• pp.367-378
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• 2021

This paper develops a dynamic regression model to quantify the contribution of key external factors to operational energy efficiency of ships. On this basis, kernel density estimation is applied to explore distribution patterns of fluctuations in operational performance. An empirical analysis based on these methods show that distribution of fluctuations in Energy Efficiency Operational Indicator (EEOI) is leptokurtic and fat tailed, rather than a normal one. Around 85% of fluctuations in EEOI can be jointly explained by capacity utilization and sailing speed, while the rest depend on other external factors largely beyond control. The variations in capacity utilization and sailing speed cannot be fully passed on to the energy efficiency performance of ships, due to complex interactions between various external factors. The application of the methods is demonstrated, showing a potential approach to develop a rating mechanism for use in the legally binding framework on operational energy efficiency of ships.

• KIEAE Journal
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• 제13권6호
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• pp.45-53
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• 2013

For the target goal of Zero-energy House construction in 2025, the government announced that the insulation regulations will be continuously enhanced. It has been predicted that high-performance insulation materials, such as vacuum insulation panel (VIP), should be used to decrease the thickness of outer walls. The aim of this study was to evaluate the performance of adhesively fixed external insulation and finish system (EIFS) with VIP. The energy performance of a base model with conventional internal insulation system and three alternatives of EIFS with VIP were analyzed by three-dimensional heat transfer simulation. Construction cost and convenience of each alternative were also evaluated and compared. As results, effective alternatives in terms of each performance as well as overall performance considering the weighting factors of each performance were suggested.

• 설비공학논문집
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• 제26권9호
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• pp.424-433
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• 2014

The purpose of this study is to evaluate the effectiveness in the lighting performance of mixed type light-shelf, by comparing and analyzing the internal light-shelf, external light-shelf, and mixed-type light-shelf. The performance of light-shelf was evaluated according to the angle of light-shelf at summer solstice, winter solstice, vernal equinox, and autumn equinox. The comparative analysis between the internal light-shelf, external light-shelf, and mixed-type light-shelf was carried out using the performance evaluation and analysis method. The result of performance evaluation is shown as follows. The mixed type light-shelf showed the highest lighting performance all at summer solstice, winter solstice, vernal equinox, and autumn equinox, followed by the external light-shelf and the internal light-shelf in the same order. The mixed type light-shelf was the most favorable for bringing daylight to indoors by adjusting the angle of light-shelf, and it also showed the highest lighting performance in terms of uniformity ratio of illumination which indicates the quality of light.