• Korean Journal of Weed Science
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• v.12 no.2
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• pp.102-109
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• 1992

There was significant reduction in the mitotic indices of oat roots treated with alachlor. Uniform decrease in prophase, metaphase, anaphase, and telophase as treatment time increasing was observed. Alachlor did not disrupt mitosis, but rather inhibited the onset of mitosis. Labeled dividing cells were significantly inhibited, but the number of labeled interphase cells of all treatment were increased, as compared with control in 8 hr and 12hr period. Labeled dividing cells which entered mitosis thru $G_2$ were inhibited approximately 68% at 8hr after treatment with $1{\times}10^{-5}$ M of alachlor. Alachlor apparently inhibited from the $G_2$stage into mitosis of dividing cells. After 24 hr treatment, 12.1% abd 46.6% inhibition of coleoptile growth occurred at $1{\times}10^{-5}$ M and $1{\times}10^{-4}$ M, respectively. Cell elongation was inhibited by alachlor but was less sensitive than cell division. The longitudinal section cells of oat roots treated with $1{\times}10^{-4}$ M alachlor for 12 hr were observed to be enlarged central cylinder and also showed degradation of apical meristem zone, as compared with the untreated roots.

• Education of Primary School Mathematics
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• v.19 no.1
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• pp.1-18
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• 2016

Patterns are of great significance to develop algebraic thinking of elementary students. This study analyzed teaching methods of patterns in current elementary mathematics textbook series in terms of three main activities related to pattern generalization (i.e., analyzing the structure of patterns, investigating the relationship between two variables, and reasoning and representing the generalized rules). The results of this study showed that such activities to analyze the structure of patterns are not explicitly considered in the textbooks, whereas those to explore the relationship between two variables in a pattern are emphasized throughout all grade levels using function table. The activities to reason and represent the generalized rules of patterns are dealt in a way both for lower grade students to use informal representations and for upper grade students to employ formal representations with expressions or symbols. The results of this study also illustrated that patterns in the textbooks are treated rather as a separate strand than as something connected to other content strands. This paper closes with several implications to teach patterns in a way to foster early algebraic thinking of elementary school students.

• Korean Journal of Ecology and Environment
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• v.47 no.spc
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• pp.1-9
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• 2014

Lake Suwa is a natural lake which is well-known for sightseeing and fisheries. It had suffered severe eutrophication during 1960s and 1970s with the occurrence of cyanobacterial blooms and the extinction of some benthic animals. Since 1980 water quality has been improved due to efforts of local government, scientists, and citizens. Of various methods that were attempted to improve the water quality of Lake Suwa biological methods received much attention, because it can improve the lake ecosystem integrity and fisheries in addition to the water quality. The aim of this paper is to introduce the biological methods for water quality improvement that had been employed in Lake Suwa, Japan, and their contribution to the economic benefit of local residents. Until now a significant restoration of water quality has been achieved, but there are insufficient recovery of the sediment and biota due to anoxic hypolimnion of the lake. This study proposed suspended cage culture of bivalves as a feasible method of water quality improvement. Increased grazing by bivalves will contribute to the improvement of water quality and fisheries production, which will contribute both to the ecological restoration and economy of local residents.

• Current Research on Agriculture and Life Sciences
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• v.14
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• pp.101-110
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• 1996

Using response surface methodology(RSM), the various conditions(agitation speed, air flow, glucose concentration) in jar fermentor culture were investigated to find the optimum conditions for maximum enzyme production. Central-composite-design was used to control the variable constant in the experiment. The glucose isomerase production of Steptomyces chibaensis J-59 was mostly affected by the air flow rate and glucose concentration. The estimated optimum conditions were as follows: 1% birchwood xylan, 1.5% CSL, 0.1% $MgSO_4{\cdot}7H_2O$, 0.012% $CoCl_2{\cdot}6H_2O$, pH 7.0; air flow, 2.2vvm; agitation speed, 587rpm; glucose concentration, 0.586%. Experimental values(7.43GIU/ml) for the enzyme production obtained from the given optimum conditions had a almost resemblane to response values(7.67GIU/ml) predicted by the RSM. The jar fermentor culture by the RSM produced xylose isomerase about 2.7 times as much as the baffled flask culture.

• Proceedings of the Korean Society for Bio-Environment Control Conference
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• 2001.04b
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• pp.100-102
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• 2001

본 연구에서는 온실의 난방에 사용되는 열풍식 난방기 등의 배기 연통에 부착하여 배출되는 가스로부터 열을 회수할 수 있는 장치를 개발함에 있어서 연통과 열회수 장치간의 열 교환 성능을 3가지 상이하게 설계된 열 교환 장치(Fig. 1 참조)에 대하여 실험적으로 비교 분석하였다. Fig. 1-(a)는 열 교회수기 개발을 위해 기존에 사용한 장치로서 회수용 공기의 흐름방향이 배기 연통과 직각을 이룬 형식이며, Fig. 1-(b) 및 (c)는 열 회수 성능 개선을 위해 새로 설계된 형식으로서 각각 열 교환 파이프의 배치형식이 상이하나 회수용 공기의 흐름방향이 180도로 굴곡되는 U-자형 흐름이 이루어지도록 하였다. 실험에 사용된 공기 순환 펜의 용량은 AB-형의 경우에는 최대 25㎥/min이고, C-형 및 D-형의 경우는 공히 최대 42㎥/min으로서 송풍전압 조절장치를 이용하여 풍량을 연속적으로 조절할 수 있도록 하였다. U-자형 흐름형식인 C-형 및 D-형의 경우 흐름 방향의 굴곡으로 인한 마찰저항이 있을 것으로 예상은 했으나 당초 예상했던 것에 비해 마찰 저항이 지나치게 큰 것으로 밝혀졌다. 비록 설계된 열교환 튜브의 배열형식별 열 교환기의 외부 모양이 달라 회수기의 표면을 통한 대류 열 교환이 다소 차이를 보일 것으로 예상되지만 본 연구에서는 열 회수장치에 내장된 열 교환 튜브부분만을 통한 열 회수율을 중심으로 형식간의 성능을 비교하였다. 실험을 통하여 측정된 자료중 대표적인 예는 Fig-2와 같으며, 측정자료를 기준으로 분석된 열회수 성능에 대한 설계형식별 비교 결과는 Table-1과 같으며, 분석된 결과를 요약하면 다음과 같다: 1. AB-형 열회수시스템의 경우, 초기 투자비용과 현재의 농용 전력요금 하에서 에너지 절감규모를 비교하면, 대체로 1년을 전후하여 투자에 대한 보상이 충분히 가능할 것으로 판단된다. 2. C-형 및 D-형 열회수시스템의 경우, 열 회수용 공기의 흐름방향이 동일 공간내에서 180도 굴절됨으로서 저항이 크게 발생되어 송풍 펜의 전압 증가에 따른 유속증가가 미미하였으며, 굴절형의 열교환장치는 비록 열교환면적은 직선형과 유사하더라도 송풍 펜의 공기저항이 커져서 결국 열 회수성능이 기대했던 것만큼 크게 개선되지는 못했다. 3. 송풍펜의 용량은 AB-형에 사용된 용량인 25㎥/min 전후가 적절할 것으로 판단되며, 적정 송풍 펜용량 하에서 열 회수성능은 굴절형이 직선형보다 효과적인 것으로 나타났다. 다만, 곡선형은 물론 직선형에서도 열교환 튜브의 배치밀도, 튜브 길이 및 두께 등의 변화에 따른 최적화 연구가 수반되어야 할 것으로 판단된다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.4
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• pp.428-437
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• 2017

Recently, local government has established a development strategy which takes into account the quality of each area, in order to solve the problems posed by poor development, hindrance of the urban landscape, the limits imposed by relevant laws, etc. However, the number of floors is an important factor which determines the urban landscape, planning density and quality of the external space. This planning factor has a very different effect according to the terrestrial circumstances, number of households, underparking ratio, green space ratio and floor area ratio. Therefore, in this study, a case analysis and case study are conducted and the correlation between each index is clarified. The conclusions of this study are follows. Firstly, flexibility should be ensured by taking into consideration the density indicators, average number of floors, and residential environmental performance measures in related laws and systems. Secondly, it is necessary to develop a wide-area planning method that extends the planning concept from the beginning of planning to neighboring blocks or cities. Thirdly, deregulation measures should be implemented, such as establishing specialized strategies for each region, and regulatory measures for encouraging different types of development.

• The Korean Nurse
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• v.23 no.3 s.126
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• pp.7-21
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• 1984

한국간호 I. 간호행정제도 및 법규의 변천 1. 간호행정기구 한국의 의료행정은 현대의학의 도입과 더불어 1894년 6월 내부에 위생국을 둔다는 규정이 발표됨으로서 시작되었고 1901년 관제개편에 따라 위생국에 보건과와 의무과가 설치되었다. 그 후 1945년 12월 보건후생부 간호사업국내에 보건간호과 기관간호과 조산 간호과가 설치되었고 각 도에는 간호 사업계가 설치되었다. 1948년부터는 보건사회부 의정국내의 조산간호과가 간호 사업과로 개편되었다. 그후 1970년 간호사업과가 간호사업담당관제로 개편되었으며 1981년부터는 간호사업담당관제도 폐지되어 보건국의 가족보건과나 의정국 지역의료과에서 한 명의 간호원이 참여하는 정도로 간호행정기구가 점차 축소되었다. 2. 간호법규 1)면허 1962년 개정된 의료법에 의하여 간호원의 면허는 문교부장관이 인가한 간호교육기관 졸업자중 간호원 국가시험 합격자로 규정하였다. 조산원의 경우는 1914년 처음으로 조산원 면허등록을 시작하였으며 현재는 간호원 면허를 받은 자로서 보건사회부장관이 지정하는 교육병원에서 1년의 정규 교육과정을 필한자로 그 자격을 명시하고 있다. 2) 자격시험 자격시험은 1916년부터 실시되었으며 1920년 이후는 각 도에서 관할 실시하였다. 그 후 1962년부터는 보건사회부장관의 주도하에 국가시험을 시행하였으며 현재는 국립 보건원에서 간호원을 포함한 의료업자의 국가 시험을 주관하고 있다. 3)간호수가 간호원 조산원에 관한 간호수가 관계 규칙은 1911년에 발표된 것으로 간호원의 경우 출장 시에 출장비와 간호료를 환자가 지불하도록 하는 것이었다. 1925년 5월까지는 각 지역별로 간호수가에 차이가 있었으나 동년 6월부터 수가규정이 전국적으로 통일되었다. 그 후 1953년부터는 국공립병원 간호원들에게도 다른 일반 공직자와 같이 직급을 보함으로서 간호직에 대한 보수가 통일되었으며 1971년부터는 간호직 수당이 제정되었다. II. 간호사업의 분야별 발전 1. 임상간호제도의 발전 1)초기의 임상간호 한국에 서양의학을 기초로 설립된 최초의 병원은 1885년 의사 Allen에 의한 왕립병원이다. 그 후 정부에 의하여 1894년 군부병원이 설립되었고, 1899년 내부병원이 1904년에 적십자 병원이 설립되었다. 당시에 이루어진 현대간호는 일본인 간호원들에 의해 전해진 일본식 간호와 선교사 간호원들에 의해 전해진 서구식 간호방식이 있었는데 이 두 간호방법은 문화적 배경이나 사회적 인습에 의한 많은 차이점을 볼 수 있었다. 2) 일제하의 임상간호 이 당시에 이루어진 일본식 간호방법을 보면 간호원들의 주업무가 환자를 위한 간호보다도 의사 보조에 더 치중한 것을 볼 수 있다. 한편 선교계 병원에서는 입원환자에 대해서는 간호원들이 전인간호를 실시하였으며 병원당국과 의사들의 협조로 많은 간호사업의 발전을 가져올수 있었다. 3) 광복 이후의 임상간호 6.25 동란 후 한국에는 병원이 계속 늘어나 현재 20Bed 이상의 전국의 병원수가 431개소이고 이중 80Bed 이상의 종합병원이 148개소나 된다. 각 병원의 간호사업은 간호사업과 또는 간호사업부의 행정체제로 운영되고 있으며 최근에는 간호과정(Nursing Process)의 개념을 도입하여 문제중심 간호기록인 POMR(Problem Oriented Medical Record) 방법을 시도하고 있다. 또한 면허간호원은 매년 중앙회에서 실시하는 보수교육을 10시간 이상 받고 있다.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.38 no.3
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• pp.50-63
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• 2020

This research examines the extent to which the Urban Regeneration Project has on not just physical environments and settings, but also non-physical elements such as history, culture, community, and the general economy, in addition to the analysis and categorization of its historical-cultural contents. In order to achieve this, the historical-cultural content were defined and categorized by analyzing a total of thirty-three characteristics of the Urban Regeneration Project. The analysis showed three things. First: historical-cultural business seen as a purpose of the Urban Regeneration Project comes to be subdivided into three different categories: the Arts & Cultural, the Economic Cultural, and the Historical Heritage. Second: the historical-cultural content as the leading projects were generally executed in collaboration with physical regenerations. Third: In the initial stages of the project, many businesses made crafty use of an eclectic of historical-cultural content. However, some conflicts between public officials and residents could be observed. In conclusion, the comprehensive use of historical-cultural contents in carrying out Urban Regeneration Project must have using historical-cultural content must have physical regeneration at its core, but also go above and beyond, expanding to an Human Resource-regeneration that is comprised of nonphysical regeneration as well as a governing body. Furthermore, hefty research on the development and appropriate usage of historical-cultural content is critical, as the 4th Industrial Revolution unfold before the world.

• Journal of Korean Society of Forest Science
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• v.90 no.6
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• pp.673-682
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• 2001

The objective of this study was to monitor vegetation development process after timber harvesting at (Mt.) Baekwoonsan Seoul National University Forests, Korea. Two monitoring plots were established in 1994 and woody plant were monitored from 1994 to 1999. Vegetation development pattern during last six years(1994-1999) after timber harvesting were as follows; Styrax obassia, Styrax japonica and Lindera erythrocarpa as of the existing tree were competitive species in the first year after clearcut, and Styrax japonica and Lindera erythrocarpa as of sprout tree) and Aralia elata as of seedling were dominant species in the sixth years after clearcut. Species diversity indices of harvested forest interior was decreased at the southwestern slope and increased at the northeastern slope. According to DBH distribution pattern, No. of individuals of Lindera erythrocarpa and Aralia elata showed vigorous growth in the sub-canopy layer and then Styrax japonica, Quercus serrata, Maackia amurensis, Lespedeza maximowixzii, Lindera obtusiloba, Staphylea bumalda, Clero-dendrum trichotomum, Weigela subsessilis, in order showed good growth in the sixth year after clearcut. Lindera erythrocarpa with a reversed J-shaped curve pattern by DBH class will be increased while Aralia elata with a J-shaped curve pattern will be decreased.

• Cross-Cultural Studies
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• v.30
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• pp.7-29
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• 2013

A movie which brought its material from a historical character or incidents in the past was produced by a story suggestion through a historical fact. It is because Shakespeare created a story based on a mythical element related with his life in the plot which was written from the script of the play and was on the show in the cinemas of London. It is an obvious fact that the historical drama of this movie was intentionally modified and the fictional story was added to episodes in order to create a dramatic effect. However, reflecting historical backgrounds and cultural aspects accurately through a historical study would also be an important factor. Therefore, the backgrounds and aspects presented in this movie are a kind of storytelling which was reconstructed as if a historian added his opinion to historical facts like a discourse. A historical background in was a story about Shakespeare who worked at the theater in London as a writer in 1593 the period of England Reneissance. The movie included the working and playwriting of Shakespeare who is a main character. This indicated not only the environment of the theater and literature during the reign of Queen Elizabeth I but also historical aspect in the early modern industrial society in England. This movie, that is, described that time as a recreation such as a cultural acceptance and an achievement of an initial capitalism in Renaissance in the life of characters. In particular, the factor of theaters flourishing during the Renaissance was because a newly emerging class, bourgeoisie, who held the capital emerging from a policy for middle class led to a box office hit through founding theaters and drama company and selling tickets and performing plays by themselves. Like this, the movie depicted the time led by plays to a industrialization. Moreover, Social aspects in the late 1500s were revealed in this movie through a depiction of the cinemas and the city of London. The depiction of the city of London reflected a social situation of an initial capitalism rapidly developed in trade and commerce. The social aspects such as conflicts between social classes based on getting richer and poorer, mammonism, a corrupted love between the male and the female, a immortality with growing brothels, religious and political conflicts with the foundation of the church in England were closely linked with characters' daily routine at that time in London and were reflected in this work overall. The reason why we highlight characters' job and custom like this in the movie is that these are ideationally inherent in a critical mind from people at that moment. The historical background and reproduction of the image depicted in the movie were focused on characters' daily routine and indicated the problem mentally and independently exposed in the form of initial capitalism.