• Title/Summary/Keyword: Advancement of Korean

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A Study on the Development of the Solar Salt Industry through Diagnosis of Current Situation and Theoretical Consideration (이론적 고찰 및 현황 진단을 통한 국내 천일염 산업의 발전방안 연구)

  • Suh, Bo-Won
    • The Journal of Fisheries Business Administration
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    • v.44 no.2
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    • pp.35-49
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    • 2013
  • The purpose of this study is to investigate development of the solar salt industry in Korea. To achieve the objective, the study defined the concept of advancement and competitiveness improvement regarding the solar salt industry, and identified a present situation and problems of the solar salt industry. The result showed that to develop the solar salt industry in Korea, production system should be modernized, and distribution system should be changed to get consumer's trust, and it should be informed outstanding characteristics of Korean solar salt to consumers. Finally, the government and related corporation should push related system and policy such as traceability system to develop the solar salt industry in Korea.

Spinal Dysraphism in the Last Two Decades : What I Have Seen during the Era of Dynamic Advancement

  • Wang, Kyu-Chang
    • Journal of Korean Neurosurgical Society
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    • v.63 no.3
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    • pp.272-278
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    • 2020
  • Compared to any other decade, the last two decades have been the most dynamic period in terms of advances in the knowledge on spinal dysraphism. Among the several factors of rapid advancement, such as embryology during secondary neurulation and intraoperative neurophysiological monitoring, there is no doubt that Professor Dachling Pang stood high amidst the period. I review here the last two decades from my personal point of view on what has been achieved in the field of spinal dysraphism, focusing on occult tethered cord syndrome, lumbosacral lipomatous malformation, terminal myelocystocele, retained medullary cord, limited dorsal myeloschisis and junctional neural tube defect. There are still many issues to revise, add and extend. Profound knowledge of basic science is critical, as well as refined clinical analysis. I expect that young scholars who follow the footsteps of precedent giants will shed bright light on this topic in the future.

A basic study 3D model advancement method for nuclear power plant (원자력 발전설비의 3D 모델 상세화 방안에 대한 기초 연구)

  • Lim, Byung-Ki
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2018.05a
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    • pp.37-38
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    • 2018
  • BIM(Building Information Modeling) in the architecture, VDC(Virtual Design and Construction) defined CIFE(Center for Integrated Facility Engineering) of Stanford university in USA, and Data-driven design definition issued by TECDOC-1284 of IAEA are doing data-level design generated by 3D CAD technology, integrating and managing related information based on the 3D model, and Using 3D models effectively during nuclear power plant life cycle. 3D model of domestic nuclear power industry is using interference review between design fields, 4D system linked 3D construction model and schedule activity, but the 3D model generated in the design phase is effectively not utilized during the construction, operation, decommissioning. therefore, This study is aimed to suggest 3D model LOD(Level of Detail) advancement method through the analysis of existing literature, 2D drawings, and 3D models throughout nuclear power plant lifecycle.

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AN ADVACNCED DISK BLOCK CACHING ALGORITHM FOR DISK I/O SUB-SYSTEM

  • Jung, Soo-Mok;Rho, Kyung-Taeg
    • Journal of the Korean Society for Industrial and Applied Mathematics
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    • v.11 no.3
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    • pp.43-52
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    • 2007
  • A hard disk, which can be classified as an external storage is usually capacious and economical. In spite of the attractive characteristics and efforts on the performance improvement, however, the operation of the hard disk is apparently slower than a processor and the advancement has also been slowly conducted since it is based on mechanical process. On the other hand, the advancement of the processor has been drastically performed as semiconductor technology does. So, disk I/O sub-system becomes bottleneck of computer systems' performance. For this reason, the research on disk I/O sub-system is in progress to improve computer systems' performance. In this paper, we proposed multi-level LRU scheme and then apply it to the computer systems with buffer cache and disk cache. By applying the proposed scheme to computer systems, the average access time to disk blocks can be decreased. The efficiency of the proposed algorithm was verified by simulation results.

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Advancement in Powder Metallurgy of Aluminum Alloys

  • Takeda, Yoshinobu
    • Journal of Powder Materials
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    • v.5 no.4
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    • pp.340-344
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    • 1998
  • Along with the growth of conventional ferrous powder metallurgy (PM), PM of aluminum alloys has been intensively investigated in Japan. Although rapidly solidified aluminum alloy powder was first used in the USA,/sup 1)/ commercialization for consumer market was first realized in Japan./sup 2)/ In order to achieve the viable cost-performance including Near Net Shape (NNS) formability, we developed three processes, powder extrusion, powder forging and sintering. The new powder extrusion process does not use either capsulation or vacuum degassing. The new powder forging does not need lateral flow. The new sintering process does not use liquid phase. The performance achieved by the processes is outstanding mechanical or physical properties that has potential to substitute cast iron, steel, titanium Metal Matrix Composite (MMC) or Ingot Metallurgy (IM) aluminum alloys. Cooperation with customers, powder suppliers and research associations contributed to the advancement of PM aluminum alloys in Japan.

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Seed Development and Germinability of Unripened Seed in Peanuts (땅콩 종실의 발육과 미숙종자의 발아력)

  • 김석동;이성우;박장환
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.42 no.3
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    • pp.333-337
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    • 1997
  • Pods and kernels of two peanut(Arachis hypogaea L.) cultivars, a Shinpung type, Shindaekwangtangkong and a Virginia bunch type, Namdaetangkong were harvested periodically after the gynophore earthing in the field condition and their developments were monitored by observation of the changes in size, weight and moisture content. Seed germinability and seedling vigor were tested to set up a method for hastening the generation advancement in breeding procedure. Pods and kernels reached the maximum in size at 30 to 40 days after gynophore earthing and at that time the kernels had one hundred percent germinability and the seedlings sprouted from those kernels exhibited practically acceptable viability enough to grow for the next generation.

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