• 제목/요약/키워드: Growth character

검색결과 365건 처리시간 0.026초

과정 중심 평가를 통한 수학교과 인성 함양 효과 - 기하와 벡터 과목을 중심으로 - (Effectiveness of mathematics education through the process-oriented evaluation - Focusing on Geometry and vector subjects -)

  • 김현주
    • 한국학교수학회논문집
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    • 제22권4호
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    • pp.369-393
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    • 2019
  • 본 연구는 과정 중심 평가가 학교현장에서 자연스럽게 도입되기 위해 과정 중심 평가와 기존 수행평가와의 공통점을 찾아보고 과정 중심 평가가 수학교과 인성 함양에 효과가 있음을 알아보고자 함이 목적이다. 선행연구를 분석하여 본 연구에서는 과정 중심 평가의 의미를 다양한 수행과제 및 평가방법을 도입하여 수업 중 실시하며 즉각적인 피드백을 통해 학생들의 성장 및 수업의 질을 향상시킬 수 있는 평가로 정의하였으며, 수학교과인성이란 수학수업시간에 쉽게 발현되고 함양되기 쉬운 인성요인을 뜻한다. 이에, 기하와 벡터 과목을 중심으로 과정 중심 평가의 실현 가능성에 대해 사례를 제시하고, 과정 중심 평가를 통한 수학교과 인성 함양에 효과가 있는지 알아보고자 하였다. 수학교과인성함양을 꾀하는 4가지의 과정 중심 평가(수학실험, 논리, 증명, 의사소통)을 인문계 고등학교 3학년 101명을 대상으로 2019년 3월부터 6월까지 수행한 후 수학교과 인성검사지를 활용하여 지수를 측정하였다. 대응변인 t-검정을 사용하여 결과를 분석한 결과 본 연구에서 실시한 과정 중심 평가는 수학교과 인성함양에 유의미한 효과가 있음이 나타났다.

Study on the Corrosive Characters of Carbon Steel in the Marine Splash Zone

  • Zhu, Xiangrong;Han, Bing
    • Corrosion Science and Technology
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    • 제2권1호
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    • pp.26-29
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    • 2003
  • This study determined that the four corrosive characters of carbon steel in the marine splash zone (MSZ) in China's four sea areas. It has a range and a corrosion peak value. The rust in the MSZ plays the role of "depolarizer" in the cathodic process of corrosion. The growth law of the rust layer in MSZ has a character of "annual ring". In addition the reasons causing serious corrosion of carbon steel in the marine splash zone has been discussed in this paper.

Yeats의 시에 등장하는 요정 'Sidhe' 에 관한 연구 (A study of A Nimph about 'Sidhe' in Yeats's Early Poem)

  • 최광웅;윤호창
    • 한국콘텐츠학회:학술대회논문집
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    • 한국콘텐츠학회 2005년도 춘계 종합학술대회 논문집
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    • pp.215-220
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    • 2005
  • 본 논문에서는 20세기의 뛰어난 영미 시인으로 평가되는 Yeats의 시 중에서 아일랜드의 요정 'Sidhe'가 등장하는 것을 중심으로 고찰하고 캐릭터가 가진 성장의 의미를 '어머니'의 관점으로서 제시하고자 한다.

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SI 계약의 법적 성격에 대한 연구 (A Study on the Legal System of SI Contract)

  • 계경문
    • 한국IT서비스학회지
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    • 제2권2호
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    • pp.31-38
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    • 2003
  • The rapid growth of Korean SI (System Integration) industries have established the largest marketplaces in Korea. Due to the characteristics and importance of SI industry, SI contract between developer and outsourcer is very much important. SI contract have the specific legal characters of undertaking, trust, mandate and etc. However, this paper attempts to establish the particular legal system of SI contract.

넙치양식장 환경에 따른 생산성에 관한 연구 (An Environmental Effect on Productivity of Flounder Culture Farms)

  • 어윤양
    • 수산경영론집
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    • 제42권3호
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    • pp.79-93
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    • 2011
  • Water temperature of Oliver flounder farm affects Oliver flounder growth and mortality rate. In laboratory experimental tanks, optimal water temperature was $22.5^{\circ}C$($21{\sim}24^{\circ}C$) and cultivatable water temperature was $12{\sim}28^{\circ}C$. The purpose of this study is to identify applicable and useful water temperature of Oliver flounder farm in case of actual farming. The data applied in the analysis was collected from Jeju island. In the study, various analytical methods including productivity analysis, regression analysis, statistical analysis were conducted for 13 Oliver flounder culture farms. The result of analysis can be summarized as follows : First, growth rate on the Oliver flounder culture farms was related to mean of water temperature, variation of water temperature and low water temperature. Second, survival rate on the Oliver flounder culture farms was related to mean of water temperature. In case of including Oliver flounder stocking density, defined as the surface area of Oliver flounder per $m^2$ of water surface area, survival rate strongly related to mean of water temperature, variation of water temperature, cultivating capability and stocking density. Third, production weight per $m^2$ of water surface area was strongly related to mean of water temperature, low water temperature and cultivating capability. Growth rate and survival rate was analyzed into mediate variable character.

역전파신경회로망을 이용한 피로균열성장과 수명 모델링에 관한 연구 (A Study on Fatigue Crack Growth and Life Modeling using Backpropagation Neural Networks)

  • 조석수;주원식
    • 대한기계학회논문집A
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    • 제24권3호
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    • pp.634-644
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    • 2000
  • Fatigue crack growth and life is estimated by various fracture mechanical parameters but affected by load, material and environment. Fatigue character of component without surface notch cannot be e valuated by above-mentioned parameters due to microstructure of in-service material. Single fracture mechanical parameter or nondestructive parameter cannot predict fatigue damage in arbitrary boundary condition but multiple fracture mechanical parameters or nondestructive parameters can Fatigue crack growth modelling with three point representation scheme uses this merit but has limit on real-time monitoring. Therefore, this study shows fatigue damage model using backpropagatior. neural networks on the basis of X-ray half breadth ratio B/$B_o$ fractal dimension $D_f$ and fracture mechanical parameters can predict fatigue crack growth rate da/dN and cycle ratioN/$N_f$ at the same time within engineering estimated mean error(5%).

호박 종간잡종에서 생장점 결여현상의 유전 (Inheritance of Shoot-Lacking Phenomenon in Interspecific Hybrids of Squash)

  • 홍규현;허윤찬;우영회;이관호
    • 현장농수산연구지
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    • 제12권1호
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    • pp.47-52
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    • 2010
  • 페포종 호박과 동양종 호박의 종간잡종 후대에서 자엽만 자라고 본엽이 전혀 나타나지 않는 생장점 결여현상이 발견되었으며, 이 특성은 유전분석 결과 두 쌍의 열성 동형접합인자에 의해 발현되는 것으로 밝혀졌다.

Growth and Cultural Characteristics of Cordyceps cardinalis Collected from Korea

  • Sung, Gi-Ho;Shrestha, Bhushan;Han, Sang-Kuk;Kim, Soo-Young;Sung, Jae-Mo
    • Mycobiology
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    • 제38권4호
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    • pp.274-281
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    • 2010
  • Cordyceps cardinalis was reported in Japan and the USA in 2004, and its fruiting bodies have recently been cultured in Korea. Herbarium specimens preserved at the Cordyceps Research Institute, Mushtech, Korea were revised and identified as C. cardinalis, based on morphological characters and conidial structures. Most of the C. cardinalis specimens were collected from Mt. Halla in Jeju-do. The effects of various nutritional sources and environmental conditions such as temperature and pH on mycelial growth of C. cardinalis were studied. Oatmeal agar, Martin's peptone dextrose agar, and Schizophyllum (mushroom) genetics complete medium plus yeast extract resulted in the best mycelial growth. Among carbon sources, cereals, and nitrogen sources, maltose, oatmeal, and peptone resulted in the best mycelial growth respectively. Mineral salts helped to increase growth rate but only resulted in thin mycelial density, similar to water agar. A temperature of $25^{\circ}C$ and a pH of 7 resulted in the highest mycelial growth. Based on these results, a Cordyceps cardinalis composite medium (CCM) was formulated with 1% maltose, 2% oatmeal, 1% peptone, and 2% agar. Use of the CCM resulted in slightly better mycelial growth than that of other commonly used agar media. Only organic nitrogen sources imparted a reddish pigmentation to the agar media, but this character diminished after several subcultures. A 7 day culture duration resulted in the best mycelial growth.

Physiological and Genetical Characters for Early Maturity in Barley and Common Wheat

  • Yasuda, Shozo
    • 한국작물학회지
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    • 제35권6호
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    • pp.548-558
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    • 1990
  • Physiology and genetics of early maturity in cereals are the subject of practical as well as scientific interest for agronomist and plant breeders, Thorough understanding of the true nature of such a complex character requires physiological and genetical knowledge about the internal factors, which are closely bound up with and react to some particular external or environmental factors. From the practical point of view. experiments should be conducted under controlled conditions. especially the day length and temperature, so that the genotypic differences pertaining to these factors may be discerned. Takahashi and Yasuda (1958, 1970) maintained that at least three physiological factors were responsible for determining earliness in barley. namely. (1) spring and winter habit of growth or vernalization requirement, (2) ogitioeruiduc response or sensitivity to short-day, and (3) earliness factor in a narrow sense or minimal vegetative growth. The same situations were true in common wheat also (Yasuda and Shimoyama, 1965), In this report. physiology and genetics of internal factors and their relations to the time of heading in the field will be presented with some problems concerning differences in mechanism of early maturity between barley and wheat.

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