• Title/Summary/Keyword: LIFE-FORM

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A New Species of the Genus Ophlitaspongia (Poecilosclerida: Microcionidae) from Korea

  • Kang, Dong-Won;Sim, Chung-Ja
    • Animal Systematics, Evolution and Diversity
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    • v.23 no.2
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    • pp.209-211
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    • 2007
  • A new marine sponge in the family Microcionidae, Ophlitaspongia yongjeongensis n. sp. is collected from Yongjeong-ri, Hyeongyeong-myeon, Muan-gun, Korea during 2005-2007. O. yongjeongensis n. sp. is closely related to O. reticulata in growth form (shape and color). However, the thick style and slender style of O. yongjeongensis n. sp. are larger than O. reticulata's (Bergquist and Fromont, 1988).

Reaction Route for Enzymatic Production of Neofructor-oligosaccharides from Sucrose Using Penicillium citrinum Cells

  • Lee, Jae-Heung;Satoru Shinohara
    • Journal of Microbiology
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    • v.39 no.4
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    • pp.331-333
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    • 2001
  • The production of oilgosaccharides using Penicillium citrium cells at high sugar concentrations was investigated at 50$\^{C}$ and pH 5.0. Both 1-kestose and neokestose were produced form sucrose, while both nystose and tetrasaccharide were produced from 1-kestose. However, no reaction product was obatined from neogructo-oligosaccharides such as neokestos. Based on these experimental rsults, a hypothetical reaction route was proposed to illustrate how neofructor-oilgosaccharids are formed from 1-kestose.

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Likelihood Function of Order Statistic with a Weibull Distribution (와이벌분포를 갖는 순위설계량의 우도함수)

  • Seo Nam-Su
    • Journal of the military operations research society of Korea
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    • v.9 no.2
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    • pp.39-43
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    • 1983
  • In this paper, we derive the likelihood function for the independent random order statistic whose underlying lifetime distribution is a two parameter Weibull form. For this purpose we first discuss the order statistic which represent a characteristic feature of most life and fatigue tests that they give rise to ordered observations. And, we describe the properties of the underlying Weibull model. The derived likelihood function is essential for establishing the statistical life test plans in the case of Weibull distribution using a likelihood ratio method.

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A New Species of Genus Diplastrella (Demospongiae: Hadromerida: Spirastrellidae) from Korea

  • Kim, Mi-Jeong;Sim, Chung-Ja
    • Animal Systematics, Evolution and Diversity
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    • v.25 no.1
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    • pp.61-64
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    • 2009
  • A new species Diplastrella yongmeoriensis n. sp. was collected from Jejudo Island, Korea in 2008. This new species is similar to D. bistellata (Schmidt, 1862) in growth form and skeletal structure but differs in the composition and size of spicules. The genus Diplastrella is reported for the first time in Korea.

Sequential Extraction of Cd, Zn, Cu, and Pb from the Polluted Paddy Soils and Their Behavior (중금속 오염지 논토양의 Cd, Zn, Cu, Pb의 연속 침출 방법 비교와 연차적 오염도 변화)

  • Yoo, Sun-Ho;Lee, Jong-Ryul;Kim, Key-Hoon
    • Korean Journal of Soil Science and Fertilizer
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    • v.28 no.3
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    • pp.207-217
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    • 1995
  • Extracting efficiencies of seven extracting solutions currently employed in extracting heavy metals from soils were compared and the functional relationships among them were calculated by regression analysis for Cd, Zn, Cu, and Pb. Extracting solutions employed were 0.1M HCl, 0.1M $HNO_3$, 0.05M EDTA, 0.001M DTPA(pH 7.3), 1M $NH_4OAc$ (pH 7.0), 0.1M $NH_4Ox$, and 4M $HNO_3$ respectively. Soil samples were collected from rice paddy fields near old zinc mining sites and from rice paddy fields near agro-industry complexes. Soils sampled from old zinc mining sites were also extracted using a sequential extraction method. Extraction by 4M $HNO_3$ and sequential extraction were performed on the samples collected both in 1979 and in 1991 to investigate the change in content and in chemical form of heavy metals. Functional relationships among the extracting solutions were highly correlated for Cd and Zn, whereas those for Cu and Pb were not. The predominant chemical form of Cd. Zn, Cu, and Pb in soils from old zinc mining sites was found to be of sulfide/residue form. The exchangeable form of Cd, the organically bound form of Cu, and the carbonate form of Pb were relatively high, while the sulfide/residue form of Zn was very high(> 79%). Although transformation among the extracted forms was not clear during those 12 years, a decrease in total content of Cd, Zn, Cu, and Pb was clearly observed.

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Study on Improvement of Status Survey Form for the Effective Management of Grassland (초지법에서 초지의 사후관리를 위한 실태조사서 개선방안)

  • Byung Ku Yoon;Ji Yung Kim;Kyung Il Sung;Byong Wan Kim
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.44 no.1
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    • pp.30-39
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    • 2024
  • The current survey form of grassland has not played its role in managing the grassland effectively because of the ambiguous questionnaire items and the absence of method and time of the investigation. Therefore, this study was conducted to clarify and add the items for effective of grassland management. The survey form of grassland was regulated in Article 16 of the Enforcement Rules of the Grassland Act (Survey on Grasslands Management Status, etc.). The five contents that needed improvement were the grassland owner, the survey timing and method of established grassland, grassland used livestock, grassland usage condition, and grassland grade. In the improved survey form of grassland, the grassland owner was changed to the grassland manager. In addition, 'Survey by each land' was added to the improved survey form in which the managers can survey each land. The dimension of each grassland establishment method was deleted in the grassland establishment time and method. In the livestock using grassland, the number of livestock and the area where livestock are used were added, and the number of other livestock was added, too. The grassland grade was decided as the combined score by three evaluation categories; grassland usage, the ratio of forage production in grassland and kinds of forage. The high, middle, and low grades were over 8, 6~7, and under 5 points in the combined score, respectively. The results show that the changed survey form of grassland can make grassland management more efficient by materializing the subject of grassland management and the survey terminology and methods.

The Usage of Anthropomorphic Forms in Robot Design and the Method of Evaluation (로봇 디자인에서 의인화 기법의 활용 평가 방법에 관한 연구)

  • Choi, Jeong-Gun;Kim, Myung-Suk
    • 한국HCI학회:학술대회논문집
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    • 2008.02b
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    • pp.126-130
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    • 2008
  • It takes only few seconds to find an artifact that has anthropomorphic form. There are numerous examples illustrating human's shape in daily life products. Usage of anthropomorphic form has been a basic design strategy especially when industrial designers design intelligent service robots because most of robot features were basically from human. Therefore, it's necessary to use anthropomorphic form not only in appearance design but also in interaction design. To use anthropomorphic form effectively, it needs to measure how much the artifact is similar to human, and then to evaluate whether the usage of anthropomorphic form fits to the artifact. This study's goal was to set up an evaluation standard for anthropomorphism for robot design. We suggest that there are three criteria for the evaluation standard. Those are 'anthropomorphic form in appearance', 'anthropomorphic form in Human-Robot Interaction', and 'accordance in two former criteria'. We expect that when designers put an evaluation step of anthropomophism in their design process of robots, robots might become more preferred by users, and easier to understand how to interact with.

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Awareness of Nursing Students' Biomedical Ethics and Attitudes toward Withdrawal of Life-Sustaining Treatment (간호대학생의 생명의료윤리인식과 연명치료중단에 대한 태도)

  • Kim, Geun Myun;Sung, Kyung Suk;Kim, Eun Joo
    • Child Health Nursing Research
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    • v.23 no.3
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    • pp.292-299
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    • 2017
  • Purpose: This study was done to analyze nursing students' attitudes to life-sustaining treatment by measuring their awareness of biomedical ethics and resulting attitude toward withdrawal of life-sustaining treatment. Methods: This study was a descriptive research to assess the level of nursing students' awareness of biomedical ethics, attitude toward withdrawal of life-sustaining treatment, and correlations between these variables. After the nursing students signed a consent form they were assessed. Data collection was done from September 1 to October 25, 2016, and analyzed using SPSS 23.0 WIM Program. Results: There was a negative correlation and significant difference between nursing students' awareness of biomedical ethics and attitude toward withdrawal of life-sustaining treatment. There was a significant correlation among attitude toward withdrawal of life-sustaining treatment and medical ethics, mortality ethics. Conclusion: The findings in the study indicate that it is necessary to provide nursing students with easy access to continuous education to help them establish an acceptable view of withdrawal of life-sustaining treatment.

Effects of self-esteem and adjustment to college life on career preparation behavior of paramedic students (응급구조과 학생의 자아존중감과 대학생활적응이 진로준비행동에 미치는 영향)

  • Choi, Gil-Soon;Lee, Chang-Hee
    • The Korean Journal of Emergency Medical Services
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    • v.16 no.3
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    • pp.91-102
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    • 2012
  • Purpose : This study was designed to examine the effects of self-esteem and adjustment to college life on career preparation behavior in 209 paramedic students attending two colleges in G Metropolitan City and provide the basic materials of career development program. Methods : Data were collected from Sep. 7 to 12, 2011 and SEI Form B made by Coopersmith, adjustment to college life by Baker and Siryk, and career preparation behavior by Kim were adopted and revised. Results : There was significant difference in self-esteem and adjustment to college life between gender, but there was no difference in career preparation behavior. Self-esteem and career preparation behavior were graders difference, but there was no in adjustment to college life. There were positive correlations between self-esteem and adjustment to college life. The most significant influence on career preparation behavior of paramedic students was academic adjustment, followed the social and emotional adjustment. Conclusion : For the effective career preparation behaviors, career guidance methods and programs that induce academic, social and emotional adjustment to be available in adjustment to college life of gender and grade.

The Table Design Reconstructing in the Chosun Dynasty Haejuban (조선조 해주반의 이미지를 재해석한 테이블디자인)

  • Lee, Sang Il;Kim, Myeong Tae
    • Journal of the Korea Furniture Society
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    • v.24 no.1
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    • pp.15-23
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    • 2013
  • The form of the furniture developed variously according to the flow of the time. The Soban used in the modern living space is used as a decoration. but the furniture has to be used according to the form of the modern life and residential space. The furniture is the medium interacting with the surrounding environment in the residential space. I reconstruct the splendid fanciness of the pattern of the Haejuban and nature of structure and apply to the table design. The table gave the change of the form in order to be suitable for the residential space. and it raised the efficiency of the convenient of the custody and space utilization.

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