• 산업융합연구
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• 제21권12호
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• pp.37-43
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• 2023

현대의 비즈니스 환경에서는 협업과 상호 운용성이 조직의 성공과 수익성에 있어 중요하다. 그러나 다양한 조직 간의 작업 통합은 Identity and Access Management (IAM)의 역할과 정책의 차이로 인해 많은 커스터마이징이 필요하다. 사용자 중심의 신원 (UCI)은 사용자를 중심으로 한 분산 액세스 솔루션을 제공하여 이러한 문제를 해결할 수 있다. 이 연구는 다양한 조직 간의 IAM 역할 및 프로토콜의 충돌 속에서 자원 액세스를 간소화하는 UCI의 능력을 깊게 조사한다. 이 연구는 UCI 기반의 다중 도메인 액세스 제어 (MDAC) 프레임워크를 제시하며, 이는 온톨로지, 도메인 간의 액세스 역할 및 정책을 표현하기 위한 통합된 방법, 그리고 UCI 인프라와 통합되는 소프트웨어 서비스를 포함한다. 목표는 다양한 도메인에서의 액세스 역할 및 정책 관리에 대한 명확한 지침을 제공함으로써 조직의 자원 관리와 의사 결정을 강화하고, 궁극적으로 기업의 투자 수익률을 향상시키는 것이다.

• 산학경영연구
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• 제17권
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• pp.215-230
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• 2004

지난날 우리기업들은 수많은 경영혁신 기법들을 도입하여 추진해 왔지만 그것들은 기대를 충족시키지 못하고 관심에서 멀어져가 버린 경우가 많다. 경영혁신 도입 실패는 많은 경우, 기법 자체의 문제라기보다는 그것을 실행하는 기업의 문제라고 보아야 할 것이다. 주요한 실패 원인의 하나는 경영혁신이 기업의 전략과 정렬되지 못했다는 것이다. 본 논문에서는 경영혁신 기법들을 경쟁전략의 틀에 맞추어 분석, 분류함으로써 전략과 경영혁신기법의 통합모델을 제시한다.

• 제어로봇시스템학회논문지
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• 제22권9호
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• pp.773-777
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• 2016

In this paper, a novel multi-object tracking method to track an unknown number of objects is proposed. To handle multiple object states and uncertain observations efficiently, a probability hypothesis density (PHD) filter is adopted and modified. The PHD filter is capable of reducing false positives, managing object appearances and disappearances, and estimating the multiple object trajectories in a unified framework. Although the PHD filter is robust in cluttered environments, it is vulnerable to false negatives. For this reason, we propose to exploit local observations in an RFS of the observation model. Each local observation is generated by using an online trained object detector. The main purpose of the local observation is to deal with false negatives in the PHD filtering procedure. The experimental results demonstrated that the proposed method robustly tracked multiple objects under practical situations.

• 대한산업공학회지
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• 제25권1호
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• pp.87-99
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• 1999

A shop floor control system(SFCS) performs the production activities required to fill orders. In order to effectively control these activities, the autonomous agent-based heterarchical shop floor control architecture is adopted where a supervisor does not exist. In this paper, we define functional perspective of the heterarchical shop floor control using planning, scheduling, and execution modules. In particular, we focus on an execution module that can coordinate the planning and scheduling modules and a general execution module that easily can be modified to execute the other equipment. The execution module can be defined informally as a module that downloads and performs a set of scheduled tasks. The execution module is also responsible for identifying and resolving various errors whether they come from hardware or software. The purpose of this research is to identify all the execution activities and solving techniques under the assumptions of the heterarchical control architecture. And we model the execution module in object-oriented modelling technique for generalization. The execution module modeled in object-oriented concept can be adopted to the other execution module easily. This paper also proposes a classification scheme for execution activities of the heterarchical control architecture. Petri-nets are used as a unified framework for modeling and controlling execution activities. For solving the nonexistence of a supervisor, a negotiation-based solution technique is utilized.

• 한국안전학회지
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• 제22권5호
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• pp.7-12
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• 2007

The safety standard for suspended access equipments(SAE) is developed. During the development of the safety standard, consideration was given to a close examination of the standards existing in other industrialized regions and nations such as the Eu.opean Union(EU), the United States, and Japan, as well as the existing domestic safety regulation. Also, a consideration was given to the appraising of the technical level and market conditions of the domestic industry. After careful examination of the current safety practices and issues, it was decided that the standard under development should closely follow those of the EU safety standard. The EU standard provides a detailed account of the calculation methods, safety and stability factors, testing apparatus and procedure, all under unified framework. A number of specific safety requirements have been modified in an effect to properly reflect the difficulties faced by the domestic industry. It is hoped that the safety standard developed here can serve as a valuable tool for policy decisions regarding worker safety.

• 한국경영과학회:학술대회논문집
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• 대한산업공학회/한국경영과학회 1995년도 춘계공동학술대회논문집; 전남대학교; 28-29 Apr. 1995
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• pp.193-200
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• 1995

A shop floor control system(SFCS), a central part of agile manufacturing, performs the production activities required to fill orders. In order to effectively control these activities, CSCW (computer supported cooperative work) is adopted where a supervisor does not exist. In this paper, we define functional perspective of CSCW-based shop floor control using planning, scheduling, and execution functions. In particular, we focus on an execution model that can coordinate the planning and scheduling functions. Execution can be defined informally as a function that downloads and performs a set of scheduled tasks. Execution is also responsible for identifying and resolving various errors whether they come from hardware or software. The purpose of this research is to identify all the execution activities and solving techniques under the assumptions of CSCW-based heterarchical control architecture. This paper also proposes a classification scheme for execution activities of CSCW-based heterarchical control architecture. Petri-nets are used as a unified framework for modeling and controlling execution activities. For solving the nonexistence of a supervisor, A negotiation-based solution technique is utilized.

• 한국정보처리학회논문지
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• 제6권1호
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• pp.21-31
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• 1999

이 논문은 시공간 데이터의 통합된 연산을 위하여 공간 연산자와 시간 연산자의 경합 접속을 연구한다. 시공간 연산을 위한 통합 연구는 시공간 참조 메크로에 의한 시공간 위상관계 연산자의공통 사용을 의미한다. 또한 이 논문은 지형 객체의 이력 정보를 검색하는 이력 연산자와 시간관계 비교 연산자의 통합 알고리즘을 제안한다. 제안된 확장 알고리즘은 기존의 GIS(Geographic Information System) 공간 데이터베이스를 기반으로 구현되며, 아울러 시공간 질의표현의 예를 통해 평가된다. 여기서 연구된 시공간 연산자의 통합은 통일된 시공간 질의를 지원하는데 유용한 기반구조를 제공할 것이다.

• Genomics & Informatics
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• 제5권2호
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• pp.83-87
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• 2007

The analysis of DNA microarray data is a rapidly evolving area of bioinformatics, and various types of microarray are emerging as some of the most exciting technologies for use in biological and clinical research. In recent years, microarray technology has been utilized in various applications such as the profiling of mRNAs, assessment of DNA copy number, genotyping, and detection of methylated sequences. However, the analysis of these heterogeneous microarray platform experiments does not need to be performed separately. Rather, these platforms can be co-analyzed in combination, for cross-validation. There are a number of separate laboratory information management systems (LIMS) that individually address some of the needs for each platform. However, to our knowledge there are no unified LIMS systems capable of organizing all of the information regarding multi-platform microarray experiments, while additionally integrating this information with tools to perform the analysis. In order to address these requirements, we developed a web-based LIMS system that provides an integrated framework for storing and analyzing microarray information generated by the various platforms. This system enables an easy integration of modules that transform, analyze and/or visualize multi-platform microarray data.

• 가정과삶의질연구
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• 제8권2호
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• pp.147-162
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• 1990

The purpose of this review is to establish a groundwork for building a more comprehensive conceptual framework within which various aspects of sibling relations and factor related to sibling behaviors con be explained and integrated. Descriptions of the trends and shifts in sibling studies are made in terms of their themes, variables, basic perceptions and general approaches, and analyzes of current state of sibling researches are made with relation to the conceptual aspects of the studies, namely, their standpoints on the issues of sibling variations, the sources of variations, and basic units of analysis, their reliance or emphasis on different methods, and their interests in the mediation processes. It is recognized that research variables have been successively differentiated and used in diversified manners and family ecology and systems theory viewpoints have been incorporated into the understanding of sibling relations. A triad in its full meaning, rather than a dyad or a partial trial, is proposed as a unit of analysis in order for the researchers to be able to examine and describe the true interactional aspects of family relations involving sibling relations. The concepts of coexistence and interaction are proposed as key concepts os that the inconsistencies in findings, differing viewpoints, contradicting conceptions , and contrasting approaches can be interpreted and integrated into a unified system of theories on siblings. The coexistence of similarities and differences in reality. the inevitability of interaction between individual variables and environmental variables and between within-family environmental factors and our-of-family environmental factors, and the need for the joint use of intrafamilial and extrafamilial approach are acknowledged. Attention is also drawn to the mechanism characteristics and the directionality of the mediating processes of mediating variables between a variable and its effects.

• ETRI Journal
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• 제31권1호
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• pp.51-61
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• 2009

We present a unified explanation of the internationalization strategies of major mobile network operators (MNOs). We have developed a framework that analyzes the strategies of major international MNOs in terms of the relationship between their degree of involvement in international business operations and the degree of equity participation. The results show a positive association between these two dimensions as expected, but they also reveal some exceptional cases in which certain MNOs are actively involved in the business operations of other foreign MNOs, even with minor (or zero) equity investments. In this paper, we argue that the strategic actions of the major MNOs which are the largest shareholders of foreign MNOs are in an equilibrium status because these major MNOs derive maximum benefit from full or considerable management control and active involvement. Finally, we predict that latecomers (MNOs who are just about to enter foreign telecommunications markets) may adopt an incremental investment approach because most developed markets and deregulated emerging markets with growth potential are already preempted by major MNOs. Therefore, the window of opportunity for internationalization in those markets is currently small.