• 제목/요약/키워드: Collection storage

검색결과 351건 처리시간 0.029초

Collaborative Print Journal Management in a Digital Age (디지털 시대의 인쇄본저널의 보존 방안)

  • Youn, Eunha;Chang, Yunkeum
    • Journal of Korean Library and Information Science Society
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    • 제44권2호
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    • pp.267-291
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    • 2013
  • Academic research libraries are seeking a long-term preservation plan for journals for cost-effective stewardship. The emergence of shared print archives has given the library community the opportunity to resolve the problem of the lack of library storage and build a collaborative long-term archiving plan for the print journals. The purpose of this study is to examine Western Regional Storage Trust(WEST), the largest print journal archiving program in North America, and identify their strategies for building a distributed, retrospective print repository service for journals. Based on the analysis, this article will discuss the development of new trends of collaborative library management in a digital age.

Analysis of Heat Transfer of Thermal Storage Roof with the Air Circulation System (공기순환구조를 갖는 축열지붕의 열전달해석)

  • Shin, U.C.;Park, S.H.;Baek, N.C.
    • Journal of the Korean Solar Energy Society
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    • 제21권1호
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    • pp.33-42
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    • 2001
  • The paper discusses the modelling of the thermal storage roof with the air circulation system. In this system, the fully glazed absorber plate is put on the top of the conventional pitch roof made of massive concrete and acts as a solar air heater. Solar radiation collected into absorber is stored in the roof structure by radiation and convection so that it reduces the nighttime heating load through the roof. Another part of the energy is also transmitted to internal air drawn into the channel and is then introduced Into the room. To analysis the system, the energy balance equations are developed and are solved using a finite difference method. The calculation results show a good agreement with the measured ones obtained from our experiments. From the results, it is seen that the thermal storage roof with the air circulation system reduces significantly the conductive heat loss compared with that for the conventional roof and has the instantaneous solar collection efficiency of about 30%.

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Guidelines for Packaging, Transport, and Storage of Source Cells for Organoids

  • Sungin Lee;Dayeon Kwon;Han Byeol Lee;Sooyeon Jeon;Chihye Park;Tae Sung Kim;Jin Hee Lee;Il Ung Oh;Sun-Ju Ahn
    • International Journal of Stem Cells
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    • 제17권2호
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    • pp.113-119
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    • 2024
  • This report presents guidelines for the systematic management of packaging, storage, transportation, and traceability of source cells used for organoid research. Given the important role of source cells in organoid studies, it is important to ensure the preservation of their quality and integrity throughout transportation and distribution processes. The proposed guidelines, therefore, call for a cohesive strategy through these stages to minimize the risks of contamination, deterioration, and loss-threats that significantly compromise the safety, efficacy, and efficiency of source cells. Central to these guidelines is the quality control measures that include roles and responsibilities across the entire supply chain, with recommendations specific to packaging materials, transportation facilities, and storage management. Furthermore, the need for an integrated management system is emphasized, spanning from source cell collection to the final application. This system is crucial for maintaining the traceability and accountability of source cells, facilitating the sharing, distribution, and utilization on a global scale, and supporting to advance organoid research and development.

Partial Garbage Collection Technique for Improving Write Performance of Log-Structured File Systems (부분 가비지 컬렉션을 이용한 로그 구조 파일시스템의 쓰기 성능 개선)

  • Gwak, Hyunho;Shin, Dongkun
    • Journal of KIISE
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    • 제41권12호
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    • pp.1026-1034
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    • 2014
  • Recently, flash storages devices have become popular. Log-structured file systems (LFS) are suitable for flash storages since these can provide high write performance by only generating sequential writes to the flash device. However, LFS should perform garbage collections (GC) in order to reclaim obsolete space. Recently, a slack space recycling (SSR) technique was proposed to reduce the GC overhead. However, since SSR generates random writes, write performance can be negatively impacted if the random write performance is significantly lower than sequential write performance of the target device. This paper proposes a partial garbage collection technique that copies only a part of valid blocks in a victim segment in order to increase the size of the contiguous invalid space to be used by SSR. The experiments performed in this study show that the write performance in an SD card improves significantly as a result of the partial GC technique.

Implementation of marine static data collection and DB storage algorithms (해양 정적 데이터 수집 및 DB 저장 알고리즘 구현)

  • Seung-Hwan Choi;Gi-Jo Park;Ki-Sook Chung;Woo-Sug Jung;Kyung-Seok Kim
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • 제23권2호
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    • pp.95-101
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    • 2023
  • Globally, the importance of utilization and management of marine spatial information is being maximized, and analyzing such data is emerging as a major driving force for R&D. In Korea, it is expected that collecting marine data from the past to the present and extracting its value will play an important role in the development of science in Korea in the future. In particular, marine static data constitutes a huge big database, and it is necessary to store and store the collected data without loss as high data collection costs and high-level observation techniques are required. In addition, the Disaster Safety Intelligence Convergence Center's "Marine Digital Twin Establishment and Utilization-Based Technology Research" task requires collection and analysis of marine data, so this paper conducts a current status survey of static marine data. And we present a series of algorithms that collect and store them in a database.

'Mansu', a Hardy Kiwifruit (Actinidia arguta Planch. et Miq.) Cultivar with Improved Storage Life

  • Jung, Byung Joon;Cho, Hye Sung;Park, Moon Young;Cho, Youn Sup
    • Horticultural Science & Technology
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    • 제34권5호
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    • pp.755-760
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    • 2016
  • In general, the storage life of hardy kiwifruit (Actinidia arguta) is approximately one month, even in cold storage, which is a limiting factor for its commercialization due to the short marketing period. This short shelf life is in contrast to those of green kiwifruit (A. deliciosa, 6 to 8 months) and gold kiwifruit (A. chinensis, 4 to 6 months). To increase the storage life of hardy kiwifruit, we performed a cross between A. arguta (a local collection, 'Hy2-1', female) and A. deliciosa ('Matua', male) at Wando station at the Fruit Research Institute of JARES, Korea in 1999. After the first selection in 2006, we clonally propagated the hybrid plants by grafting them onto A. arguta seedlings in Gwangyang and Haenam province, Korea. We performed the final selection of this cultivar in 2012 and applied for plant protection rights from the Korea Forest Research Institute in 2013. Several experimental orchards have been established for commercial production. 'Mansu' begins to flower on May 20 in Gwangyang. The horticultural maturity date in 'Mansu', when the soluble solid content reaches $7^{\circ}Bx$, is October 15, whereas that of the control variety ('Chiak') is October 5. The average fruit size of 'Mansu' is approximately 15 g. The soluble solid content of 'Mansu' is approximately 16 to $17^{\circ}Bx$ after ripening. The total yield of mature 'Mansu' vines is estimated to be 2.2 to 2.5 tons per 10a. The fruit firmness of 'Mansu' exceeded 1.5 kg/5 mmØ until 70 days after storage (at 0 and $1^{\circ}C$). Therefore, 'Mansu' fruits have much longer storability than the control. The cultivation and production of 'Mansu' may extend the marketing period for hardy kiwifruit.

A Study on the Design Guidelines for the Spatial Planing of Conservation Area in Museums (박물관 보존과학계 영역의 공간계획 지표에 관한 연구)

  • Jung, Sung-Wook
    • Korean Institute of Interior Design Journal
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    • 제20권5호
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    • pp.197-207
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    • 2011
  • In general, collections in museum are kept in storage according to a preservation and administration program in long or short term, after conservators' conservation treatment. Museum activities related to conservation science are common to do before and after exhibitions. That is, the museum collections include a flow mechanism, which circulate a space in where conservation science related activity is carried on centering around its storage. The purpose of this study is to suggest the design guidelines of a conservation area in a museum. The results of this study as follows. First, to program space planning, conservation area of museum is divided into 4 kinds of zone. Second, space for relics unloading in basically includes 'unloading room', 'control room', 'worker room', 'unpacking room', and 'unloading tools storage' and considers to install 'outdoor arrangement space', etc. In case of space for making relics collections, 'arrangement room' and 'temporary storage' are separately planned in order to arrange and temporarily store relics taken in. Conservation analysis space should be divided into 2 kinds of zone, 'conservation analysis lab' for analysis of collection characters and 'restoration lab' for conservation treatment in the bigger museum. In case of large-scale museum, conservation treatment space is basically classified with characters of museum collections. And it considers installing 'waterlogged wood lab', 'painting clothes treatment lab', 'storage of treated relics' etc. Third, for 'the spaces for analysis treatment', must consider activity contents and sizes of the department for scientific conservation every museum, can classify in detail required space, and must review the space for relics settlement in construction.

Collection and Identification of Molds from Citrus Oranges during Post-Harvest Storage (온주밀감 부패 곰팡이의 분리 및 동정)

  • Ko, Young-Hwan;Kim, Se-Jae
    • Korean Journal of Food Science and Technology
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    • 제28권6호
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    • pp.1142-1145
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    • 1996
  • Long term-storage of citrus oranges after harvest has been hindered mainly by molds The goal of this research was to collect and identify those molds, which would help find a way to extend shelf-life after harvest. During the period of 1994 to 1995, fourteen different strains were isolated and purified from putrefied fruit (Citrus unshiu var.) that was stored at room temperature under open air. The storage disease was caused by the following molds: Penicillium italicum, 25.8%, Monilia candida, 19.8%; Alternaria citri, 18.1%; Mucor hiemalis, 11.0%; Phomopsis citri, 6.6%; Botrytis cinerea. 5.5%; Phoma citricarpa, 3.8%; Glomerella cingulata, 3.8%; P. digitatum, 1.1%; other molds, 4.5%; Most of the strains showed pectinolytic activity and putrefaction. These citrus fruit-putrefying molds will be used as target strains for the control of microorganisms during post-harvest storage.

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Development of a decision framework for the designing and implementation of a sustainable underground water storage system

  • Gladden, Lennox Alexander;Park, Namsik
    • Proceedings of the Korea Water Resources Association Conference
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    • 한국수자원학회 2015년도 학술발표회
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    • pp.244-244
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    • 2015
  • Managed Aquifer Recharge (MAR) in the form of Aquifer Storage and Recovery (ASR) systems are being applied for numerous water augmentation projects both in developed and developing countries. Given the onset of Climate Change and its influence on weather patterns and land use, it has been acknowledged the utilization of this technology will be ever increasing. This technique like all others does have its drawbacks or disadvantages, whereby to overcome these drawbacks or disadvantages it is recommended that logical planning process be followed. In this study, we developed a decision framework known as "Decision framework for the planning, designing, construction/testing and implementation of subsurface water storage system" to further standardize the planning and design process of subsurface water storage system to increase the probability of having a successful ASR/ASTR project. The formulation of this framework was based on earlier frameworks, guidelines, published papers and technical reports which were compiled into a data collection database. The database of which consider both qualitative and quantitative aspect for example recharge objectives, site location, water chemistry of the native, source and recovered water, aquifer characteristics(hydraulic conductivity, transmissivity, porosity), injection/pumping rate, ecological constraints, societal restrictions, regulatory restrictions etc. The assimilation of these factors into a singular framework will benefit the broad spectrum of stakeholder as it maps the chronological order under which ASR project should be undertaken highlighting at each stage the feasibility of the project. The final stage of which should result in fully operational ASR system. The framework was applied to two case studies and through the application of a modified ASR site selection suitability index (Brown et al., 2005) a score was derived to identify the performance of each site. A high score of which meant a maximize chance of success given the reduce presence of project constraints.

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Space-Efficient Compressed-Column Management for IoT Collection Servers (IoT 수집 서버를 위한 공간효율적 압축-칼럼 관리)

  • Byun, Siwoo
    • Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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    • 제9권1호
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    • pp.179-187
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    • 2019
  • With the recent development of small computing devices, IoT sensor network can be widely deployed and is now readily available with sensing, calculation and communi-cation functions at low cost. Sensor data management is a major component of the Internet of Things environment. The huge volume of data produced and transmitted from sensing devices can provide a lot of useful information but is often considered the next big data for businesses. New column-wise compression technology is mounted to the large data server because of its superior space efficiency. Since sensor nodes have narrow bandwidth and fault-prone wireless channels, sensor-based storage systems are subject to incomplete data services. In this study, we will bring forth a short overview through providing an analysis on IoT sensor networks, and will propose a new storage management scheme for IoT data. Our management scheme is based on RAID storage model using column-wise segmentation and compression to improve space efficiency without sacrificing I/O performance. We conclude that proposed storage control scheme outperforms the previous RAID control by computer performance simulation.