• Journal of Communications and Networks
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• 제12권3호
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• pp.266-274
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• 2010

The efficient network resource management is one of the important topics in a real-time system. In this paper, we present a practical network resource management framework, control-theoretic packet scheduler (CPS) system. Using our framework, an operating system can schedule both input and output streams accurately and efficiently. Our framework adopts very portable feedback control theory for efficiency and accuracy. The CPS system is able to operate independent of the internal network protocol state, and it is designed to schedule packet streams in fine-grained time intervals to meet the resource requirement. This approach simplifies the design of the CPS system, and leads us to obtain the intended output bandwidth. We implemented our prototype system in Linux, and measured the performance of the network resource management system under various network QoS constraints. The distinctive features of our principles are as follows: It is robust and accurate, and its operation is independent of internal network protocols.

• 디지털콘텐츠학회 논문지
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• 제15권5호
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• pp.595-602
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• 2014

이미 잘 알려져 있는 클라우드 컴퓨팅은 사용자가 요구하는 컴퓨팅 자원을 최적화하여 유연하고 확장성 있게 지원할 수 있어 다양한 분산컴퓨팅 분야에 적용되고 있다. 클라우드 컴퓨팅은 가상화 기술을 통해 실제적인 구현 및 서비스가 가능하며 여러 가상화 기술과 제품들이 개발, 출시되고 있다. 본 논문에서는 클라우드 컴퓨팅의 가상화 기반으로 교육 실습 환경을 구축하고, 각 실습환경의 성능을 분석하였다. 클라우드 컴퓨팅 기반의 가상화 실습 환경은 최적화된 자원을 제공할 수 있으며, 실습 제공자는 자원 관리의 편리성, 결과에 대한 손쉬운 관리, 실습환경의 성능 및 상태 등의 수월하게 관리하고 파악 할 수 있다. 또한, 다양한 실습환경을 구축하는데 있어 요구되는 시스템 환경을 유연성 있고 신속하게 제공할 수 있어 시스템의 활용성 또한 높아지게 된다. 나아가 가상화 실습환경의 성능 분석을 통하여 구동될 수 있는 교육 어플리케이션의 성능을 미리 평가하고 가늠할 수 있다.

• 한국항행학회논문지
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• 제27권5호
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• pp.528-533
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• 2023

항공사에서는 보다 효과적인 교육훈련을 실시하고자 실무와 연계한 훈련 프로그램을 도입하고자 하였다. 이를 위해 항공사들은 항공 인력의 실무 역량 강화 및 안전 문화 증진을 위해 증거 기반 훈련(EBT)을 시행해 오고 있다. 항공사들은 효과적인 EBT 모델 개발을 위해 운항 데이터 및 사례 연구를 분석하여 항공 인력의 역량 및 실무 능력을 체계적으로 평가할 수 있다. 또한 승무원 자원 관리(CRM)와 같은 기술적 방법 및 인적 요인을 포함하는 전체적인 접근법을 적용하여 EBT 모델을 구성할 수 있다. EBT 도입으로 인해 항공사들은 조종사의 실무 업무에 대한 진단 및 피드백 시스템을 구축하게 되며 개인 맞춤형 교육을 제공할 수 있고 교육 성과를 거쳐 교육 효과를 검증하는 교육훈련 체계를 확립하게 된다.

• 한국가정과교육학회지
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• 제14권3호
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• pp.1-9
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• 2002

The objectives of this study were to measure the effect of Practical Reasoning Instruction in Home Economics : specifically. its effect on developing of critical thinking as well as to evaluate the degree of the critical thinking process. with reference to its sub-factors and the level. The research subjects were consisted of the experimental group of 119 freshman class female students from the “A” High School and the comparative group of 110 freshman class female student from the “C” High School in the city of Chung-Ju. This research was conducted under the pre-post test control group design. administering the Pre-Post testing to both the experimental and the comparative groups. The experimental group was subjected to Practical Reasoning Instruction in Home Economics : whereas the comparative group was taught under the lecture-Instruction in Home Economics The research findings are as follows: 1. Those who studied Home Economics under the Practical reasoning method scored higher on the critical thinking Process than the comparative group students who were taught Home Economics in the lecture-style approach. 2. The experimental group of students. who studied Home Economics under the Practical reasoning method. scored higher than the comparative group in their ability to perceive assumption and to render Judgment among the five sub-factors of their critical thinking processes.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2003년도 하계종합학술대회 논문집 Ⅲ
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• pp.1491-1494
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• 2003

Video adaptation in response to dynamic resource conditions and user preferences is required as a key technology to enable universal multimedia access (UMA) through heterogeneous networks by a multitude of devices in a seamless way. Although many adaptation techniques exist, selections of appropriate adaptations among multiple choices are often ad hoc. To provide a systematic solution, we present a general conceptual framework to model video entity, adaptation, resource, utility, and relations among them. It allows for formulation of various adaptation problems as resource-constrained utility maximization. We apply the framework to a practical case of dynamic bit rate adaptation. Furthermore, we present a description tool, which has been accepted as a part of the MPEG-21 Digital Item Adaptation (DIA), along with a brief overview of the .elated descriptors to support terminal and network quality of service (QoS).

• 한국경영과학회:학술대회논문집
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• 한국경영과학회 1998년도 추계학술대회 논문집
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• pp.172-175
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• 1998

Currently, many companies are trying to be more competitive by implementing the most appropriate software package, called ERP (Enterprise Resource Planning). ERP can support the company's business process. A repository, which can story and retrieve enterprise-wide information, is a key component of such software package. This paper implements an enterprise repository for the ERP. A wellknown repository standard, IRDS (Information Resource Dictionary System), is employed for the repository architecture. A meta schema that can help develop database, business applications, models, and workflow is proposed. To illustrate the practical usefulness, a real-life ERP prototype is built within the framework of the proposed repository.

• 대한임베디드공학회논문지
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• 제11권3호
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• pp.153-162
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• 2016

This paper proposes an optimal dynamic resource allocation method in IoT (Internet of Things) parking guidance system using Q-learning resource allocation model. In the proposed method, a resource allocation using a forecasting model based on Q-learning is employed for optimal utilization of parking guidance system. To demonstrate efficiency and availability of the proposed method, it is verified by computer simulation and practical testbed. Through simulation results, this paper proves that the proposed method can enhance total throughput, decrease penalty fee issued by SLA (Service Level Agreement) and reduce response time with the dynamic number of users.

• 가족자원경영과 정책
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• 제2권1호
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• pp.47-57
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• 1998

This paper delves into philosophical aspects of institutional household(IH) study. The paper argues that it is also necessary to investigate theoretical, methodological, and philosophical issues, not only prescriptive, practical, and managerial ones, in order to establish a field of study as an independent area of academic discipline. In that sense the paper is expected to contribute to the establishment of "the science of IH" as well as the growth of knowledge in that field. For philosophical discussions, the paper first reviews overall sub-fields of philosophy of science such as ontology, epistemology, methodology, and the debate on human nature. Then, it focuses on philosophical issues relating to the nature of IH including (1) the substance of institutional household as scientific investigation, (2) the epistemological basis of IH study, (3) the possibility of normal methodology in studying IH, (4) the values that IH ought to pursue, and (5) the rationale and autonomy of IH study. In the conclusion section, the paper discusses why the study on philosophical aspects in IH is critical in academic community of family resource management.anagement.

• 지식경영연구
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• 제10권4호
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• pp.93-114
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• 2009

This paper presents a knowledge-based view of the multi-business firm. The multi-business firm has advantages in technological innovation and knowledge creation to the extent that it embodies various ideas and resources, and recombines them more effectively and efficiently than market contracts. The purpose of this paper is to identify how to organize the multidivisional form (M-form) structure to realize such advantages. We first differentiate within-division innovation and cross-division innovation, and explain why cross-division innovation, despite its higher performance potential, would be more difficult to achieve, compared to within-division innovation. Then, we offer the propositions about how to promote cross-division innovation with references to resource capability and coordination capability that is, in turn, composed of structural and control system, social capital, and human resource management system. We conclude by discussing theoretical and practical implications.

• 가족자원경영과 정책
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• 제11권4호
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• pp.37-53
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• 2007

The purpose of this study was to develop an educational program of leadership for housewives as the CEO of household management. For this purpose, the related concepts of leadership as CEO were analyzed and cases on the educational program for housewives were reviewed. The program developed through this study consists of four subjects: 1. The housewives' identity 2. Household management and the CEO 3. The strategies for the development of leadership and 4. The connection between the individual household, the community, and society. It can be expected that the program will contribute to the activation of various programs in the Healthy Families Center and the strong positioning of research in "family resource management" as a practical science.