• Title/Summary/Keyword: Useful storage

Search Result 772, Processing Time 0.029 seconds

Storability of Soybean Lines for Maintanance of Germplasm (대두유전자원의 안전보존을 위한 계통간 발아수명검정)

  • Kwon, S.H.;Han, Y.H.;Lee, Y.I.
    • KOREAN JOURNAL OF CROP SCIENCE
    • /
    • v.29 no.3
    • /
    • pp.275-279
    • /
    • 1984
  • To develop a long term storage technique of soybean germplasm, fifty lines of soybean seeds were kept in storage room controlled by air-conditioner and dehumidifier at KAERI. The storage room was kept below 25$^{\circ}C$ of temperature and 60% relative humidity. Germinability of stored seeds was evaluated at every three or six months. On the other hand, the newly harvested seeds of the lines were accerelated aging at 40$^{\circ}C$ and 90% of relative humidity, and compared with non-accerelated seeds. The average germinability at the starting time of storage was 97% but the germinability was decreased to 62% at 42 months after storage in the storage room. The germinability seemed to be affected by seed size and seed coat color. The germinability of small seed lot tended to be higher than that of large seed lot, and the germination response in longer term of storage was greater than those of shorter term of storage. The accerelated aging test for 7 days proved to be a useful technique to pretest germinability of soybean seeds for assaying the relative storage potential.

  • PDF

Investigation of Spot Marking in Multilayer Thin Films using OCT (OCT에 의한 다층 박막의 Spot Marking 분석)

  • Shin Yongjin;Kim Hyunjin;Kim Youngseop;Park Sohee
    • Laser Solutions
    • /
    • v.7 no.2
    • /
    • pp.11-18
    • /
    • 2004
  • We propose a novel application of optical coherence tomography (OCT) to monitor pit formation in laser irradiated optical storage materials. A multilayer optical storage recordable compact disk, is composed of multiple layers, each of different structure. Disks were irradiated with aQ-Switched Nd:YAG laser with an energy of 373 mJ. Post-irradiated disks were evaluated by OCT and those images were compared with optical microscopy. Our results indicate that OCT is a useful instrument to investigate pit formation in multilayer optical storage disks and might also provide information to optimize optical memory technology.

  • PDF

Comparison of hydrochemical informations of groundwater obtained from two different underground storage systems

  • Lee, Jeonghoon;Kim, Jun-Mo;Chang, Ho-Wan
    • Proceedings of the Korean Society of Soil and Groundwater Environment Conference
    • /
    • 2002.04a
    • /
    • pp.110-113
    • /
    • 2002
  • Statistical- based, principal component analysis (PCA) was applied to chemical data from two underground storage systems containing LPG to assess the usefulness of such technique at the initial stage (Pyeongtaek) or middle stage (Ulsan) of hydrochemical studies. For the first case, both natural and anthropogenic contamination characterize regional groundwater. Saline water buffered by Namyang lake affects as a natural factor, whereas cement grouting influence as an artificial factor. For the second study area, contaminations due to operation of LPG caverns, such as disinfection activity and cement grouting effect, deteriorate groundwater quality. This study indicates that principal component analysis would be particularly useful for summarizing large data set for the purpose of subsurface characterization, assessing their vulnerability to contamination and protecting recharge zones.

  • PDF

The of Rack with Modularized Cell considering Heterogeneous Unit Load Size in AS/RS (자동창고 Effectiveness 시스템에서 크기가 다른 저장단위를 고려한 모듈화 셀을 갖는 랙의 효과)

  • 이문환;이영해
    • Proceedings of the Korean Operations and Management Science Society Conference
    • /
    • 2000.04a
    • /
    • pp.1-4
    • /
    • 2000
  • In general, under the concept of unit load, Automated Storage/Retrieval Systems (AS/RS) have the rack of equal sized cells. However, they are inadequate and inefficient meeting the various sizes of customers' demands in today's business environment. Higher utilization and flexibility of warehouse storage can be achieved by using AS/RS with tile rack of modularized cell. In this paper, the model of AS/RS with the rack of modularized cell is proposed, and the effectiveness of proposed model is presented by way of numerical examples. The model developed in this research, as one type of AS/RS that is more flexible to the size and has higher space utilization than those of existing rack structure, could every useful for the storage of heterogeneous unit load sizes.

  • PDF

A Study on Sediment Deposite in Reservoir (저유수량의 소실률 조사연구)

  • 엄태영
    • Magazine of the Korean Society of Agricultural Engineers
    • /
    • v.10 no.1
    • /
    • pp.1413-1419
    • /
    • 1968
  • Yochon reservoir was consturcted with an original storage capacity of 202.7 chung-meters. This reservoir receives the water from watershed area of 933.0 chungbo and has irrigated area of 478.0 chungbo. In 1967 a detailed capacity survey of this reservoir was carried out by a new depth-recorder under the scheme of reservoir sedimentation of Agricultural Engineering Research Center. Significant findings are 1. The capacity of the reservoir for the water storage has been reduced by 8.9%(18.066 chung-meters out of the 202.7 chung-meters) since its construction, a period of just 39.0 years. 2. The sediment accumulation in the reservoir represents an average annual soil loss of 0.496mm depth(0.463 chung-meters) of soil from the watershed area of 933.0 chungbo. Eventually the capacity of the reservoir for the water storage will be reducing by about 25%(50.7 chung-meters out of the 202.7 chung-meters)in one hundred years since its construction. We have to set up controlling projects for those reservoir protections from the sediment, soil loss, and other failures. The depth recorder is very useful, convenient, and accurate machine for surveys of reservoir capacity and other river surveys.

  • PDF

Analysis of flash memory characteristics as storage medium of mobile equipments (휴대단말기 저장매체인 플래시 메모리 특성 분석)

  • Jung, Bo-Sung;Lee, Jung-Hoon
    • Journal of The Institute of Information and Telecommunication Facilities Engineering
    • /
    • v.10 no.4
    • /
    • pp.115-120
    • /
    • 2011
  • Recently flash memory is widely used in various mobile devices as storage medium. Nonvolatile memory can be divided into two categories: NAND- and NOR-type flash memory. NOR flash memory is mainly used to store instruction codes for operation; while NAND for data storage. However, NAND does show more economical benefits, that is, it is approximately 30~40% cheaper than NOR flash. Therefore it can be useful to improve NAND flash performance by replacing NOR flash with NAND flash combining with various buffer systems.

  • PDF

Thermal properties of latent heat storage microcapsule-water slurry

  • Mun, Soo-Beom
    • Journal of Advanced Marine Engineering and Technology
    • /
    • v.39 no.8
    • /
    • pp.807-812
    • /
    • 2015
  • A microcapsule water slurry is a latent heat-storage material having a low melting point. In this study, the thermal properties of a microcapsule water slurry are measured. The physical properties of the test microcapsule water slurry, i.e., thermal conductivity, specific heat, latent heat, and density, are measured, and the results are discussed for the temperature region of solid and liquid phases of the dispersion material (paraffin). It is clarified that Eucken's equation can be applied to the estimation of the thermal conductivity of the microcapsule water slurry. Useful correlation equations of the thermal properties of the microcapsule water slurry are proposed in terms of the temperature and concentration ratio of the microcapsule water slurry constituents.

Stability of Monascin Pigment Isolated from Monascus purpureus (홍국의 황색색소 Monascin에 대한 안정성 연구)

  • 박영현;채지민
    • Journal of Food Hygiene and Safety
    • /
    • v.12 no.1
    • /
    • pp.15-19
    • /
    • 1997
  • The stability of monascin yellow pigment isolated from Monascus purpureus was determined over a period of storage for the wide range of pH, various metal ions and antioxidants. The absorption maximum of monascin pigment was 385 nm. Monascin pigment was more stable in acid solutions than in alkaline (pH 9 and pH 11) during storage period. It was also observed the reduction of absorption was occur after 3 days storage. The stability of monascin pigment was not changed by adding the various metal ions of the concentration of 10-4 M, however, it was unstable by adding the Zn2+, Al3+ and Fe3+ of 103- M concentration. The antioxidants. BHA, BHT, cysteine and L-ascorbic acid, have no effects on the stability of monascin yellow pigment. Thus, it may be concluded that the monascin pigment is stable and useful food additives as the natural colorant except for the alkaline food and food containing the Zn2+, Al3+ and Fe3+.

  • PDF

  ( )

  • 김길창
    • Communications of the Korean Institute of Information Scientists and Engineers
    • /
    • v.5 no.2
    • /
    • pp.105-107
    • /
    • 1987
  • A storage tube, Tektronix 4010, was added to NOVA 840 system at Korea Advanced Institute of Science in 1974 and efforts were made to develop an interactive graphics system. These include a software library, called TCS(Terminal Control System) [4], algorithms for hidden line and surface eliminations [5. 6], and two single user graphics systems based on different concepts involving graphic languages [2, 11]. A storage tube is a low-cost terminal, which is useful in certain applications, but introduces some problems since partial modification of the screen is not possible without erasing it entirely. Thus it has far reaching effects on the design of an interactive graphics system. The components of an interactive graphics system will be explained in section 2 and their relation ships with the choice of storage tube as the output device will be pointed out.

MultiFormat motion picture storage subsystem using DirectShow Filters for a Mutichannel Visual Monitoring System (다채널 영상 감시 시스템을 위한 다중 포맷 동영상 저장 DirectShow Filter설계 및 구현)

  • 정연권;하상석;정선태
    • Proceedings of the IEEK Conference
    • /
    • 2002.06d
    • /
    • pp.113-116
    • /
    • 2002
  • Windows provides Directshow for efficient multimedia streaming processings such as multimedia capture, storage, display and etc. Presently, many motion picture codecs and audio codecs are made to be used in Directshow framework and Windows also supports many codecs (MPEG4, H,263, WMV, WMA, ASF, etc.) in addition to a lot of useful tools for multimedia streaming processing. Therefore, Directshow can be effectively utilized for developing windows-based multimedia streaming applications such as visual monitoring systems which needs to store real-time video data for later retrieval. In this paper, we present our efforts for developing a Directshow Filter System supporting storage of motion pictures in various motion picture codecs. Our Directshow Filter system also provides an additional functionality of motion detection.

  • PDF