• 제목/요약/키워드: Deployment

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A New Approach Towards Aggregation in VANET

  • Hussain, Rasheed;Abbas, Fizza;Son, Junggab;Kim, Sangjin;Oh, Heekuck
    • 한국정보처리학회:학술대회논문집
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    • 한국정보처리학회 2013년도 추계학술발표대회
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    • pp.214-217
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    • 2013
  • Advancements in automobile industries and the communication technologies caused VANET (Vehicular Ad Hoc NETwork) to evolve to VANET-based clouds before its deployment. It is more likely that VANET clouds will replace the traditional VANET in the deployment phase. It is to be noted that an abrupt deployment is out of question because it would require mass of resources and money to do so; instead incremental deployment is more ideal. In this paper, we aim at the incremental deployment phase of VANET clouds and focus on the well-established public transport networks. Data aggregation is one of the essential aspects in traditional VANET and has been researched for quite long time. However the previously proposed schemes are still controversial. Keeping in mind the time and space prediction of public buses, we leverage these buses as potential aggregators and MG (Mobile Gateways) in VANET clouds. Buses gather cooperative whereabouts information from neighbors, aggregate that information, disseminate it to the neighbor MGs and also send it to the cloud for storage and for services exchange. In our proposed scheme, we believe that the dissemination will be effective and cover most of the urban area since at any instant of time; buses cover most part of the urban areas. Besides, the effective transmission range is higher due to tall buses.

나노위성 전개스위치 구현 사례 및 고찰 (A Case Study of the Implementation of Deployment Switch for Nanosatellites)

  • 김민기
    • 우주기술과 응용
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    • 제3권1호
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    • pp.72-85
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    • 2023
  • 대다수 나노위성은 발사관에 수납되어 발사되며 발사관 내부의 나노위성은 수납 중에는 전원이 꺼진 상태로 보관되다가 전개와 동시에 전원이 인가된다. 이를 위하여 나노위성은 전개스위치를 필수로 장착하고 있다. 대부분의 나노위성의 전개스위치는 위성의 부팅을 담당하는 전기 스위치와 그를 조작하는 기계적 조립체로 구성된다. 위성은 본체 내부에 전기 스위치를 갖추고 있으며, 이를 누르는 기계적 구조를 통해 외부에서 스위치를 조작한다. 이러한 설계는 기계적 복잡도를 높이고 누름쇠와 본체와의 마찰과 같은 문제로 확실한 작동을 보장하기 어렵다는 단점이 있다. 본문에서는 이의 대안으로 전기스위치를 본체 바깥에 장착하여 직접 외부와 접촉하는 방식과 그 구현 사례를 소개하며 나노위성 전개스위치 구현에 관한 새로운 방법론을 제안하고자 한다.

Routing optimization algorithm for logistics virtual monitoring based on VNF dynamic deployment

  • Qiao, Qiujuan
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제16권5호
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    • pp.1708-1734
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    • 2022
  • In the development of logistics system, the breakthrough of important technologies such as technology platform for logistics information management and control is the key content of the study. Based on Javascript and JQuery, the logistics system realizes real-time monitoring, collection of historical status data, statistical analysis and display, intelligent recommendation and other functions. In order to strengthen the cooperation of warehouse storage, enhance the utilization rate of resources, and achieve the purpose of real-time and visual supervision of transportation equipment and cargo tracking, this paper studies the VNF dynamic deployment and SFC routing problem in the network load change scenario based on the logistics system. The BIP model is used to model the VNF dynamic deployment and routing problem. The optimization objective is to minimize the total cost overhead generated by each SFCR. Furthermore, the application of the SFC mapping algorithm in the routing topology solving problem is proposed. Based on the concept of relative cost and the idea of topology transformation, the SFC-map algorithm can efficiently complete the dynamic deployment of VNF and the routing calculation of SFC by using multi-layer graph. In the simulation platform based on the logistics system, the proposed algorithm is compared with VNF-DRA algorithm and Provision Traffic algorithm in the network receiving rate, throughput, path end-to-end delay, deployment number, running time and utilization rate. According to the test results, it is verified that the test results of the optimization algorithm in this paper are obviously improved compared with the comparison method, and it has higher practical application and promotion value.

Applying Quality Function Deployment in the Apparel Industry

  • Diane M. Scheurell;Ph. D.
    • The International Journal of Costume Culture
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    • 제2권2호
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    • pp.14-30
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    • 1999
  • Quality Function Deployment (QFD) is a product development tool used to ensure that the voice of the customer is heard and translated into products. This paper shows the applicability and usefulness of this product development tool in the apparel industry by developing an apparel example and taking it through the four matrices that encompass a QFD process.

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품질과 비용의 득실관계를 고려한 품질기능전개 모형 (A Model of Quality Function Deployment with Cost-Quality Tradeoffs)

  • 우태희;박재현
    • 대한안전경영과학회:학술대회논문집
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    • 대한안전경영과학회 2002년도 춘계학술대회
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    • pp.227-230
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    • 2002
  • This paper presents an analytic method of quality function deployment(QFD) that is to maximize customer satisfaction subject to technical and economic sides in process design. We have used Wasserman's normalization method and the analytical hierarchy process(AHP) to determine the intensity of the relationship between customer requirements and process design attributes. This paper also shows cost-quality model the tradeoff between quality and cost as a linear programming(LP) with new constraints that have designated special process required allocating firstly The cost-quality function deployment of piston ring is presented to illustrate the feasibility of such techniques.

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품질과 비용의 득실관계를 고려한 품질기능전개 모형 (A Model of Quality Function Deployment with Cost-Quality Tradeoffs)

  • 우태희;박재현
    • 대한안전경영과학회지
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    • 제4권2호
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    • pp.169-178
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    • 2002
  • This paper presents an analytic method of quality function deployment(QFD) that is to maximize customer satisfaction subject to technical and economic sides in process design. We have used Wasserman's normalization method and the analytical hierarchy process(AHP) to determine the intensity of the relationship between customer requirements and process design attributes. This paper also shows cost-quality model the tradeoff between quality and cost as a linear programming(LP) with new constraints that have designated special process required allocating firstly. The cost-quality function deployment of piston ring is presented to illustrate the feasibility of such techniques.

정보시스템 개발에 있어서 품질기능전개의 활용에 관한 연구 (A Study on the Application of Quality Function Deployment to Information System Development)

  • 안원석;박영택
    • 품질경영학회지
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    • 제27권1호
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    • pp.111-134
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    • 1999
  • Although the role of information system has been rapidly increasing in modern management, there have been few researches on the quality assurance in information system. This paper suggests how to apply quality function deployment(QFD) to information system development in order to build up user-centered quality assurance system. The main focus of the paper is how to design the linkages between management strategy, information systems, and the users using quality function deployment.

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운전석 및 조수석 에어백 단품의 유한요소 모델링과 전개 과정 해석 (Finite Element Modeling of Folded Airbag and Analysis of Deployment Process)

  • 김헌영;이상근;신윤재
    • 한국자동차공학회논문집
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    • 제4권6호
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    • pp.236-246
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    • 1996
  • The deployment process of fully folded airbag is analyzed. The methodology of finite element modeling is presented for flat driver side airbag and 3-dimensional passenger side airbag. 'Initial metric option' is used to model 3-dimensional passenger side airbag before deployment. The deformed shapeds and pressure waveforms inside cushion evaluated from simulation are compared to the test results. The agreements between the simulation and the experiments are satisfactory, and the results of simulation are confirmed to be applied to the design of airbag module.

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에어백 단품설계를 위한 전개과정과 승객거동해석 (Analyses of Deployment Process and Sled Test for Designing Airbag Module)

  • 김헌영;이상근;신윤재
    • 한국자동차공학회논문집
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    • 제6권2호
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    • pp.118-128
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    • 1998
  • Finite element analyses are carried out to provide results usable in the design of airbag module that consists of inflater, cushion, cover, mounting plate, etc. In the first phase, a deployment process of airbag module is analyzed to evaluate the pressure waveform of developed airbag and deployment characteristics, and is compared with the test results. Interaction between head form and inflated airbag module is investigated in the second phase. In the last stage, sled test with rigid dummy, airbag midule, driving system and car interior part are simulated to investigate the influence of airbag design factor on the behavior of dummy with seat belt. The procedures can be provided as a guideline for airbag module design and improvement of airbag module performance.

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제품 기능 전개 방법에 관한 연구 (A study on the Product Function Deployment Method)

  • 이언경;박선주;강달모;하성도
    • 한국정밀공학회지
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    • 제18권4호
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    • pp.55-63
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    • 2001
  • This paper describes a methodology of product function deployment for understanding product functions and generating systematic functional relation charts. The product function deployment is based on the designer's understanding of product functions. The method involves following steps: 1) definition of product primary function and flows of energy, material, and information, 2) construction of a product tree using key parts, 3) definition of functions and interactions of the functional units, 4) construction of 'from-to' relation matrices, 5) grouping of the parts, and 6) construction of functional relation charts. With this approach, functional relation charts can be generated such that complex product functions are easily understood. The functional relation chart of a refrigerator is generated as an example.

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