• 제목/요약/키워드: storage containers

검색결과 164건 처리시간 0.02초

Hybrid in-memory storage for cloud infrastructure

  • Kim, Dae Won;Kim, Sun Wook;Oh, Soo Cheol
    • 인터넷정보학회논문지
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    • 제22권5호
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    • pp.57-67
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    • 2021
  • Modern cloud computing is rapidly changing from traditional hypervisor-based virtual machines to container-based cloud-native environments. Due to limitations in I/O performance required for both virtual machines and containers, the use of high-speed storage (SSD, NVMe, etc.) is increasing, and in-memory computing using main memory is also emerging. Running a virtual environment on main memory gives better performance compared to other storage arrays. However, RAM used as main memory is expensive and due to its volatile characteristics, data is lost when the system goes down. Therefore, additional work is required to run the virtual environment in main memory. In this paper, we propose a hybrid in-memory storage that combines a block storage such as a high-speed SSD with main memory to safely operate virtual machines and containers on main memory. In addition, the proposed storage showed 6 times faster write speed and 42 times faster read operation compared to regular disks for virtual machines, and showed the average 12% improvement of container's performance tests.

컨테이너 재처리 최소화를 위한 최적화 모형 (An Optimization Model for Minimizing the Number of Rehandles at Container Yard)

  • 김광태;김경민;이태윤;김동희
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
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    • pp.1246-1250
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    • 2011
  • This paper considers the container storage problem determining storage position of inbound containers in a container yard at a rail freight terminal. The objective of the problem is to minimize the total number of rehandles when storing/retrieving containers onto/from stacks in the yard. Rehandle implies the temporary removal from and placement back onto the stack to retrieval a target container. In order to solve the problem, we formulate the problem as a binary integer program.

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무게를 고려한 수출 컨테이너의 장치위치 결정법 (A slot assignment method in the container yard for export containers considering their weights)

  • 김갑환;박영민
    • 대한산업공학회지
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    • 제22권4호
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    • pp.753-770
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    • 1996
  • In order to reduce the number of rehandles during the loading operation of export containers in port container terminals, the storage location of each arriving container should be determined considering of its weight. We formulate the problem by a dynamic programming model to get the optimal storage location. And a heuristic rule is suggested in order to overcome computational difficulties of the optimization model. The performance of the rule is evaluated by comparing it with the result of DP model.

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Baffled fuel-storage container: parametric study on transient dynamic characteristics

  • Lee, Sang-Young;Cho, Jin-Rae;Park, Tae-Hak;Lee, Woo-Yong
    • Structural Engineering and Mechanics
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    • 제13권6호
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    • pp.653-670
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    • 2002
  • In order to ensure the structural dynamic stability of moving liquid-storage containers, the flow motion of interior liquid should be appropriately suppressed by means of mechanical devices such as the disc-type elastic baffle. In practice, the design of a suitable baffle requires a priori the parametric dynamic characteristics of storage containers, with respect to the design parameters of baffle, such as the installation location and inner-hole size, the baffle number, and so on. In this paper, we intend to investigate the parametric effect of the baffle parameters on the transient dynamic behavior of a cylindrical fuel-storage tank in an abrupt vertical acceleration motion. For this goal, we employ the ALE (arbitrary Lagrangian-Eulerian) kinematic description method incorporated with the finite element method.

저장용기 및 저장온도에 따른 김치의 품질변화 (Effects of Storage Containers and Storage Temperatures on Kimchi Quality)

  • 송주은
    • 동아시아식생활학회지
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    • 제5권2호
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    • pp.39-48
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    • 1995
  • The effects of storage containers and storage temperatures on Kimchi quality were investigated. The results were summarized as follows : 1. Pabix, poly ethylene-back+plastic container, tupper-ware were much better than crock, stainless steel, and plastic container in keeping a Kimchi. However, there was no significant differences between containers in the sensory test for Kimchi. 2. Kimchi stored at 18$\pm$2$^{\circ}C$ was the most delicious, which revealed pH 4.30, acidity 0.45-0.50%, and salt concentration 3.10wt% in the 4th days after storage whereas sensory score for Kimchi quality was very low in the 12th days after storage. 3. pH in Kimchi stored at 5$^{\circ}C$ after fermentation at 18$\pm$2$^{\circ}C$ was slowly decreased as compared to the Kimchi stored at 18$\pm$2$^{\circ}C$, but texture score of Kimchi stored at -5$^{\circ}C$ or -8$0^{\circ}C$ after fermentation at 18$\pm$2$^{\circ}C$, but texture score of Kimchi stored at -5$^{\circ}C$ or -8$0^{\circ}C$ were compared to that of the Kimchi stored at 18$\pm$2$^{\circ}C$ after fermentation. 5. In the group of Kimchi stored at 1$0^{\circ}C$, immediately after picking it took 48days until the best conditions which were pH 4.30 and acidity 0.45-0.50% were matched. 6. The most promising method in keeping good taste and good quality of Kimchi was to store Kimchi at 5$^{\circ}C$ after 4days fermentation at 18$\pm$2$^{\circ}C$. And, for long period preservation of Kimchi, it took would be effective to store at -8$0^{\circ}C$ after fermentation at 18$\pm$2$^{\circ}C$.

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밥의 변패에 관한 연구 -주로 하절 식기별 조사-

  • 김경희
    • 대한가정학회지
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    • 제5권1호
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    • pp.742-748
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    • 1966
  • Studies were made by measuring number of bacteria, water content, acidity and sugar content on spoiling at different kinds of containers in Summer season, to determine better kinds of containers adoptable for storing cooked rice being the most important food for Korean. It was found that brass, aluminum and porcelain containeres are not recommendable, whereas wooden containers such as a bamboo case (Sokori), a wooden box and a gourd pitcher (Bakaji) are quite useful for at least 24 hour storage even in hot Summer time.

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효율적인 컨테이너의 반ㆍ출입을 위한 게이트-장치장 모델 연구 및 구현 (Modeling and!. Implementing of Gate-Container Yard for Effective Input/Output Containers)

  • 조호진;박상민
    • 대한안전경영과학회:학술대회논문집
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    • 대한안전경영과학회 2003년도 추계학술대회
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    • pp.271-284
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    • 2003
  • We developing for Gate-Container Yard model to execute the Input & Output process of containers which are waiting in container yard effectively and fast. The optimal model is developed to manage and trace the containers in yard. We developed the put-away strategies which considered the storage time for volume of transportation and the distance between blocks and gates using the MICRO-CRAFT (Computerized Relative Allocation Facilities Technique).

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감귤 동상과의 저장병해 방제에 관한 연구 (Study on the Storage Diseases Control of Cold Damaged Mandarin)

  • 배대한
    • 한국응용곤충학회지
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    • 제16권4호
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    • pp.241-244
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    • 1977
  • Cold damaged mandarins caused by low temprature and snow at harvest season were very severe at Jeju in 1975, and the storage diseases were also unusually serious in connection with water rot. The control measures for these problems in citrus culture are not developed yet in Korea. For the control of fruit rot diseases in the storage, fungicide applications with the use of various containers are tested. Thiofernate (Topsin WP $70\%$, X 1, 200) treatments with wooden boxes and PVC containers were very effective, but for the practical and satisfactory solutions on the storage diseases control of citrus, Benlate and Sumicidin applications are also considered.

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컨테이너 터미널에서의 장치장 운용 계획에 관한 연구

  • 전수민;김갑환;김재중;류광렬;박남규;최형림
    • 한국지능정보시스템학회:학술대회논문집
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    • 한국지능정보시스템학회 2005년도 공동추계학술대회
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    • pp.442-450
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    • 2005
  • One of the important tactical problems for the efficient operation of container terminals is to determine the usage of storage space There are two different strategies for stacking containers; mixing strategy. in which outbound containers and inbound containers are mixed in the same block. and segregating strategy, in which outbound containers and inbound containers are stacked in blocks different from each other. The performance of space allocation strategies also depends on the types of handling equipment in the yard and the number of handling equipment allocated to each block. A simulation model is developed considering various handling characteristics of yard cranes. Performances of various space and equipment allocation strategies are evaluated by using the simulation model.

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제염해체 방사성폐기물 관리를 위한 다목적 용기의 개발 (Development of Multi-Purpose Containers for Managing LLW/VLLW from D&D)

  • 이재설;박제호;성낙훈;양계형
    • 방사성폐기물학회지
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    • 제14권2호
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    • pp.157-168
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    • 2016
  • 방사성폐기물용기의 설계는 용도 (운반, 저장, 처분)의 안전요건에 부합돼야 할 뿐 아니라 경제성과 기술적 기준도 만족해야 한다. 이러한 기준은 장차 원전해체로부터 발생할 다량의 저준위/극저준위 해체폐기물의 관리에도 해당된다. 해체폐기물의 특성은 원전운영에서 발생하는 방사성폐기물과는 매우 다르므로 적합한 용기의 개발이 요구된다. 이 논문은 다목적용도의 표준용기 개발을 제시한다. 이 개념은 경주처분장과 같은 국가 인프라를 고려한 원전해체폐기물의 관리를 최적화하기 위한 용기이다. 이 연구는 일련의 시제품을 설계 또는 제작한 것이다 : 극저준위용 소프트백, 저준위용 금속용기 (해상운반용 표준 IP2 용기 및 도로운반용 ISO 용기), 이들 용기 설계의 안전성 분석을 위한 시뮬레이션 및 시험결과는 규제요건에 잘 부합되는 것으로 나타났다. 콘크리트 용기의 후속개발은 2016년에 수행예정이다.