• Journal of Internet Computing and Services
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• v.7 no.6
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• pp.79-86
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• 2006

Many of concurrency control for client-sewer database systems have been proposed and studied in the literature. However, commonly known schemes do not manage to the case of dramatic changes in data contention because the data contention of database systems is changed for each cases. In this paper, we propose o hybrid concurrency control. The proposed scheme uses a optimistic scheme for the first-run transactions and a pessimistic scheme for the second-run transactions. By pre-claiming locks in the second phase, deadlocks which ore possible in pessimistic based concurrency control are prevented in our approach. In addition, the scheme ensures at most one re-execution even if the validation in the optimistic phase fails. By a detailed simulation, this paper examines the behaviors of the Distributed Optimistic Concurrency Control and the proposed scheme. The simulation study shows our scheme outperforms Distributed Optimistic Concurrency Control in our experimental result.

• Journal of Families and Better Life
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• v.13 no.3
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• pp.102-114
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• 1995

본 연구의 목적은 단독가구노인들이 편안한 일상생활을 영위할 수 있도록 가사노동의 복지대책마련을 위한 기초자료를 제시하고자 하는데 있다. 연구대상은 전라북도에 거주하는 55세이상의 단독가구노인주부이며, 최종분석에 사용된 자료수는 177부이다. 연구의 내용은 단독가구노인주부의 특성에 따른 가사노동수행의 하위영역인 실행정도, 시간, 선호도를 조사하였고 실행정도, 시간, 선호도간의 상관관계를 보았다. 연구의 결과 연령이 낮을수록, 교육수준, 수입 등의 사회경제적 지위가 높을수록, 주부가 건강할 수록배우자가 있는 주부일수록 가사노동의 실행정도가 높고, 시간이 길며, 선호도가 높게 나타났다. 그리고 이들 하위영역간의 상관관계는 낮게 나타났다.

• Journal of The Korean Association of Information Education
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• v.15 no.1
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• pp.111-117
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• 2011

Many various researches about the PC execution process monitoring system have studied. Nevertheless, it is hard to find research of a system that multi-PC based each PC can be monitoring and reporting by file type. In this study, it designed and implemented that each PC can be monitoring and reporting by files to a server in multi-PCs' environments. Moreover it can gather and organize informations of reporting. It is expected users can recognize that execution processes are reporting. It causes to reduce execution unnecessary process.

• KIPS Transactions on Computer and Communication Systems
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• v.2 no.1
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• pp.43-50
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• 2013

File identification and analysis is an important process of computer forensics, since the process determines which subjects are necessary to be collected and analyzed as digital evidence. An efficient file classification aids in the file identification, especially in case of copyright infringement where we often have huge amounts of files. A lot of file classification methods have been proposed by far, but they have mostly focused on classifying malicious behaviors based on known information. In copyright infringement cases, we need a different approach since our subject includes not only malicious codes, but also vast number of normal files. In this paper, we propose an efficient file classification method that relies on undocumented information in the header of the PE format files. Out method is useful in copyright infringement cases, being applied to any sort of PE format executable file whether the file is malicious, packed, mutated, transformed, virtualized, obfuscated, or not.

• Therapeutic Science for Rehabilitation
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• v.4 no.1
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• pp.19-28
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• 2015

Introduction : The Understanding of neurological lesion relating to apraxia will help to predict symptoms according to a lesion and to establish a proper treatment and goal. So, This study will explain causes and mechanism of a movement error of ideomotor apraxia through literature review and also will suggest the evidence using in treatment. Body : Ideomotor apraxia may occur a damage of the production part in praxis system, and is common in damage of a cortex rater than damage of a subcortex. According to study with gesture, movement of upper limbs is relate of left parietal lobe but finger movement is relate of frontal lobe. The visual and tactile stimulation through using real objects could guide into proper movement aside from memory of a skilled action. Conclusion : Praxis can occur through diverse neurological processing and various external stimulations can help praxis processing. Therefore, the treatment of ideomotor apraxia need to use this stimulations.

• Fire Science and Engineering
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• v.21 no.4
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• pp.52-58
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• 2007

The effect of stand-growing-stock characteristics of thinning area and non-thinning area on forest fire was studied in this work. 14 spots were selected from 3 counties such as Yangyang, Injae, and Gapyeong and on-the-spot investigations were performed to evaluate the effect of forest fire. The stand-growing-stock characteristics on the spots were analyzed through the height of tree, breast height diameter, clear length, mortality of branch, forest tree standing crop density, degree of closure, and shrub and grass cover degree. The relation between forest fire and the risk of spread of forest fire were analyzed from the analysis of the stand-growing-stock characteristics. It is considered from this work that the possibility of forest fire is decreased on the thinning area compared to the non-thinning area because of higher clearlength, lower number of tree, lower mortality of branch and higher shrub and grass cover degree.

• 한국벤처창업학회:학술대회논문집
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• 2021.11a
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• pp.63-67
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• 2021

최근 중등교육에서 기업가정신 교육에 대한 필요성에 대한 인식이 확산되면서, 현장에서 이를 실천할 교사의 역량이 중요해졌다. 본 연구는 기업가정신 교육을 실천할 교사들의 역량을 탐색하고 중요도와 실행도 차이를 분석함으로써, 교육 요구도의 우선순위를 도출하고자 하였다. 이를 위하여 본 연구는 TPACK(Technological Pedagogical Content Knowledge, 테크놀로지내용교수지식) 모델에 기반하여 기업가정신 교육 역량을 개념화하고, 이를 측정하기 위한 도구를 개발하였다. 이를 활용하여 기업가정신 교육에 관심이 있는 중등교사 217명을 대상으로 설문조사를 실시하여 중요도와 실행도의 차이를 분석하였다. 연구결과, TPACK의 모든 하위 요인에 대하여 중요도의 평균이 실행도의 평균보다 높아 교육적 처방이 필요한 것으로 나타났다. 또한 중요도-실행도 매트릭스에서 가장 개선의 우선순위가 높은 요인은 CK(내용지식)인 것으로 나타났다. 이러한 결과를 토대로 교사들의 기업가정신 교육 역량 강화를 위한 시사점을 도출하였다.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2003.05a
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• pp.764-771
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• 2003

본 연구는 비즈니스 프로세스의 자동화된 실행 및 관련 데이터의 관리를 지원하는 BPMS (Busuiess Process Management System)를 위한 프로세스 실행 모델을 제안한다. BPMS의 효과적 개발을 위해서는 프로세스의 내용을 표현하는 프로세스 정의 모델이 필요함과 동시에. 네트워크 상에서 그것이 해석되고 실행되는 방식을 규정하기 위만 프로세스 실행 모델도 필요하다. 이는 프로세스에 관여되는 분산된 개체들간의 협력적 의사 소통을 효과적으로 지원할 수 있고, 이를 통해 시스템간의 상호운용성을 고양하고 프로세스 모델이 갖는 경직성을 극복할 수 있는 BPMS의 효과적 개발의 바탕이 될 수 있다.

• Proceedings of the Korean Information Science Society Conference
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• 2004.04a
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• pp.484-486
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• 2004

현재 웹 서비스의 결합을 기술하기 위한 다양한 방법들이 제시되고 있지만 XLANG과 WSFL의 장점을 수용한 BPEL4WS로 통합되고 있는 추세이다. BPEL4WS는 비즈니스 프로세스에 참여하는 웹서비스들간의 상호동작과 프로세스의 상태 정보를 기술할 수 있는 효과적인 방법을 제공한다. 그러나, BPEL4WS로 기술된 명세를 웹서비스화 하기 위한 실행 방안에 대한 연구는 미흡한 실정이다. 이에 본 논문은 비즈니스 프로세스에 내재된 워크플로우 그래프로부터 간략화 된 실행 그래프의 생성 방법을 제안한다. 또한 실행 그래프를 이용하여 BPEL4WS 명세의 병렬 및 분산 실행을 지원하는 구현 방안에 대해 논의한다.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.13 no.4
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• pp.23-34
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• 2018

This study examines the mediating effect of product innovation on the relationship between product development strategy implementation and product development performance of business ventures. The previous researches on product development has mainly focused on the role of venture firms' technological capabilities or that of entrepreneurship in product development. Although there are many important discussions related to the product development of business venture, a more discussion on the relationship between product development strategy implementation and performance of product development is needed. The purpose of current study is to examine the relationship between the entrepreneurial orientation and the R&D department on product development performance. To confirm the model of Day & Wensley(1988) that product novelty mediates the relationship between product development strategy and product development performance. The research results of 703 Korean business ventures suggest that the implementation strategies for product development such as utilizing entrepreneurial orientation and R&D department are more effective for business ventures in terms of product development performance. Also product novelty was prove to be a mediator that intervene the relationships between implementation of product development strategy and product development performance. Those findings may provide implications for whom has interested in the relationship between entrepreneurship and product development performance of business ventures. The differences in between new and existing product performance from the implementation strategy of product development may provide implications for practitioners who understand the process of product development.