• Title/Summary/Keyword: Multi-forming

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Fire Response Education for Hospital Healthcare Providers: A Scoping Review (병원 의료종사자 대상 화재 대응 교육 현황: 주제범위 문헌고찰)

  • Min-Ji Kim;Seung-Eun Lee;Hyun-Eun Park
    • Quality Improvement in Health Care
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    • v.29 no.2
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    • pp.32-46
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    • 2023
  • Purpose: Fire response education is critical for healthcare providers working in hospitals to ensure a safe environment for patients and staff. However, a comprehensive review that thoroughly examines the contents, methodologies, and outcomes of fire response education in hospitals is currently lacking. Methods: We conducted a scoping review by adhering to the framework proposed by Arksey and O'Malley. We searched five electronic databases for literature published after 1990, using the key categories of "hospitals," "fires," and "education." As a result, we identified 15 relevant articles that met our inclusion criteria for the review. Results: Of the 15 articles, 12 had adopted a quasi-experimental design and the remaining 3 had employed a true experimental design. The majority of these studies (11 out of 15) were conducted in the United States, with 4 studies forming committees or teams dedicated to education. Simulation methods were used in 13 studies, while 2 studies had employed a combination of methods. All studies focused on first-response procedures based on RACE (Rescue, Alarm, Contain, Extinguish/Evacuation). Outcome measures included the learners' overall experience, performance in the educational settings, and performance in the field, with all studies reporting positive results following the educational interventions. Conclusion: Our review highlights the importance of multi-professional and multi-departmental educational strategies based on institutional-level initiatives for healthcare providers to create a safe hospital environment.

Shoot-tip culture for massive production of radish foundation seeds (무 원종 대량생산을 위한 경정배양)

  • Han Yong Park;You Kyoung Kim;Soo Bin Choi;Sug Youn Mo
    • Journal of Plant Biotechnology
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    • v.50
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    • pp.82-88
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    • 2023
  • Shoot-tip culture was used to produce clonal plants of radish stock seeds. Using 6-benzyladenine (BA), the largest number of RA2 line multi-shoots were formed with an average of 14.67 shoots on 1.33 µM BA in early seedlings and 11.33 shoots on 1.78 µM BA in juvenile seedlings. The largest number of RA4 line multi-shoots were formed with an average of 11.67 shoots on 2.22 µM BA in early seedlings and 13.67 shoots on 1.33 µM BA in juvenile seedlings. There was little difference in the significance level by BA concentration in both lines. Using Thidiazuron (TDZ), the number of RA2 line multi-shoots increased with increasing TDZ concentration, forming the largest number of multi-shoots in 0.45 µM TDZ (7.0 and 3.0 multi-shoots for early and juvenile seedlings, respectively), but few multi-shoots were formed from TDZ 2.25 and 4.5 µM. RA4 line produced almost no multi-shoots in early seedlings, and 3.7 multi-shoots were produced in 0.23 and 0.45 µM TDZ in juvenile seedlings, but not at higher concentrations. Analysis of the tissue culture seedlings grown by cultivating the generated multi-shoots with Radish Foundation seeds using SSR marker revealed a weak pattern of mutation in the generated tissue culture seedlings, but there was no mutant. In addition, in terms of root roots, both RA2 and RA4 lines generally had the best rooting, number of roots, and degree of root development in 4.9 µM indol-3- butyric acid (IBA).

An Energy Efficient Cluster-Based Local Multi-hop Routing Protocol for Wireless Sensor Networks (무선 센서 네트워크를 위한 에너지 효율적인 클러스터 기반 지역 멀티홉 라우팅 프로토콜)

  • Kim, Kyung-Tae;Youn, Hee-Yong
    • The KIPS Transactions:PartC
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    • v.16C no.4
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    • pp.495-504
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    • 2009
  • Wireless sensor networks (WSN) consisting of a largenumber of sensors aims to gather data in a variety of environments and is beingused and applied in many different fields. The sensor nodes composing a sensornetwork operate on battery of limited power and as a result, high energyefficiency and long network lifetime are major goals of research in the WSN. Inthis paper we propose a novel cluster-based local multi-hop routing protocolthat enhances the overall energy efficiency and guarantees reliability in thesystem. The proposed protocol minimizes energy consumption for datatransmission among sensor nodes by forming a multi-hop in the cluster.Moreover, through local cluster head rotation scheme, it efficiently manageswaste of energy caused by frequent formation of clusters which was an issue inthe existing methods. Simulation results show that our scheme enhances energyefficiency and ensure longer network time in the sensor network as comparedwith existing schemes such as LEACH, LEACH-C and PEACH.

The Promotion of Reading Books for Children and the Role of Public Library in the Age of Multi-Media (다매체시대 어린이 독서운동과 공공도서관의 역할)

  • 김수경
    • Journal of Korean Library and Information Science Society
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    • v.34 no.1
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    • pp.261-286
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    • 2003
  • This paper is to emphasize on important of reading books and leading instruction at the age of multi-media. And this paper observes the promotion of reading books fer children in all the world. Especially the role of public library is important for the promotion of reading books fur children. According]y this paper present plans for the promotion of reading books for children successfully. The role of public library is a mediator for book and children. We have to restore storytelling culture for forming cooperative culture and healing heart pain in the public library. And We have to found a children's library around the children's life, especially in the local government. We have to train children's librarian Immediately In educational institution. We have to enhance the specialization of children's room librarian in the public library.

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Fabrication of Continuously Porous Alumina Bodies by Multi-Extrusion Process and their In-vitro and In-vivo Study for Biocompatibility (다중압출공정을 이용한 알루미나 연속다공질체 제조 및 그의 생체친화성 평가를 위한 In-vitro, In-vivo 실험)

  • 강인철;조순희;송호연;이병택
    • Journal of the Korean Ceramic Society
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    • v.41 no.7
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    • pp.560-566
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    • 2004
  • To fabricate the continuously porous alumina bodies by multi-extrusion process, carbon powder and ethylene vinyl acetate were used as a pore forming agent and a binder, respectively. As the change of extrusion pass number, reduction ratio as well as the volume fraction of core and tube, the porous alumina bodies having various kind of pore size and porosity could be obtained. The porous bodies showed continuous pore shape, high specific surface as well as high bending strength, which were compared with those of commercial alumina bodies. In-vitro study was carried out using MG-63 osteoblast cells to investigate of their biocompatibility. As a result, the cells grew well on top and bottom as well as inside surface of pore. From the result of in-vivo study of 3-dimensional porous alumina bodies using rats, it was confirmed that any inflammatory response was not found in the subcutaneous tissue around porous body. Also the porous bodies removed from the rats were fully covered with well-developed fibrous tissues and showed the formation of new capillary blood vessels.

Development of Vacuum System for Improving Productivity of Fine Multi-hole Sheet Metal Product (미세 다공 박판제품 생산성 향상을 위한 진공 시스템의 개선)

  • Park, Joon-Hong;Kwon, Taek-Hwan;Choi, Young;Kim, Chul;Choi, Jae-Chan
    • Journal of the Korean Society for Precision Engineering
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    • v.17 no.8
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    • pp.180-188
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    • 2000
  • Fine multi-hole sheet metal product(FMSMP) is a specific metal plate which is used in color TV and computer monitor. Processes of manufacturing FMSMP are generally composed of coating cleaning exposure and etching processes. After a thin metal plate is made by rolling photosensitive liquid is coated on the metal plate in coating process. Then the coated thin metal plate consecutively passes through exposure process in which upper and lower glasses are compressed by vacuuming the space between glasses and metal plate. In this lowered glasses are compressed by vacuuming the space between glasses and metal plate. In this lowered vacuum state certain part of metal plate is desirably exposed to light and will be etched into forming lots of well-arranged holes with a specific diameter, nowadays to manufacture FMSMP of 17 inch braun tube 80 second is required for complete vacuum but 35 second is applied to manufacture FMSMP in reality. In the present study vacuuming time is tried to reduce for improvement of productivity by analyzing vacuum system and proposing several solutions, for faster vacuuming speed degree of vacuum state between glasses and metal plate is improved by the proposed method and experiments using the proposed method are performed for verification. In addition microstructure of FMSMP is investigated to prevent stain phenomena and to improve quality of the product.

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Effects of Oxide Layer Formed on TiN Coated Silicon Wafer on the Friction and Wear Characteristics in Sliding (미끄럼운동 시 TiN 코팅에 형성되는 산화막이 마찰 및 마멸 특성에 미치는 영향)

  • 조정우;이영제
    • Tribology and Lubricants
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    • v.18 no.4
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    • pp.260-266
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    • 2002
  • In this study, the effects of oxide layer farmed on the wear tracks of TiN coated silicon wafer on friction and wear characteristics were investigated. Silicon wafer was used for the substrate of coated disk specimens, which were prepared by depositing TiN coating with 1 ${\mu}{\textrm}{m}$ in coating thickness. AISI 52100 steel ball was used fur the counterpart. The tests were performed both in air for forming oxide layer on the wear track and in nitrogen to avoid oxidation. This paper reports characterization of the oxide layer effects on friction and wear characteristics using X-ray diffraction(XRD), Auger electron spectroscopy(AES), scanning electron microscopy (SEM) and multi-mode atomic force microscope(AFM).

Novel Technique for Splay to Bend Transition in a ${\pi}$ Cell

  • Jhun, Chul-Gyu;Lee, Jong-Lac;Kang, Sang-Ho;Lee, Seong-Ryong;Kim, Jae-Chang;Yoon, Tae-Hoon
    • 한국정보디스플레이학회:학술대회논문집
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    • 2004.08a
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    • pp.903-906
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    • 2004
  • A ${\pi}$ cell is initially in splay state. Before driving a ${\pi}$ cell, transition from splay to bend state is always necessary which originates from nucleation. We propose a novel technique to make bend transition fast and effectively by forming transition cores around the pixels with the technique of multi-domain alignment, where domain boundaries play a crucial role in splay to bend transition. This noble technique enables the splay to bend transition to occur within less than 2 seconds with a low applied voltage.

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Formation of Dictyosome and Spherosome in Endosperm Cells of Panax ginseng during seed Formation (인삼(人蔘)(Panax ginseng)의 종자형성(種子形成)에 따른 배유세포(胚乳細胞)의 딕티오좀 및 Spherosome 형성)

  • Yu, Seong-Cheol;Kim, Woo-Kap
    • Applied Microscopy
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    • v.21 no.2
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    • pp.117-125
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    • 1991
  • This study has been carried out to investigate the development of dictyosome, and roles of dictyosome about the formation of spherosome in the endosperm cell during seed formation of Panax ginseng with electron microscope. The result is as follows; In the endosperm cells of early stage during seed formation of Panax ginseng, plastid, mitochondria, endoplasmic reticulum, dictyosome and ribosomes are evenly distributed in cytoplasm. Electron lucent vesicles derived from dictyosome are observed in endosperm cells. Vesicles that contain low electron density are derived from forming face of dictyosome and releases into the cytosol. This vesicles formed multi vesicular body or fused with the plasma membrane. The spherical spherosomes are formed from dictyosome containing the lipid materials of even electron density and are gradually increased in size and number. Dictyosome is located in between vacuole and spherosome and it's cisternae form a semicircle and a circle. Some membrane of the protein body that accumulate the storage protein are originate from the spherical vacuole which interfused between vesicles and vacuoles derived from dictyosome.

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Expert System for Process Design of Cold Forging with Redesigning Scheme (재설계 기능을 갖는 냉간단조 공정설계용 전문가시스템 개발)

  • 김홍석;임용택
    • Transactions of the Korean Society of Mechanical Engineers
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    • v.18 no.8
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    • pp.2039-2052
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    • 1994
  • In this study, an expert system for multi-stage cold forging process design of axisymmetric parts is developed. The available geometries are axisymmetric shape and cylinder with a hold in one end. The overall system is composed of knowledge-based system for process sequence design, output module interfaced with CAD system and material data-base. In the developed system, designed process can be modified in order to reduce the number of processes and make the distribution of forming load be almost equal at various deforming stages within the machine capacity. After process sequence design is completed, results can be stored as a text file or a commercial CAD system file. The capabilities of the developed system are illustrated through various examples of process design.