• 제목/요약/키워드: Comparison study

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3, 4, 5세 유아의 크기비교 능력 및 전략 (Size Comparison Ability and Strategies of Young Children)

  • 이정욱;오애순
    • 아동학회지
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    • 제23권4호
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    • pp.21-33
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    • 2002
  • In this study of age differences in the correct judgment of relative size and size comparison strategies, 114 three-, four-, and five-year-old children were asked to judge the relative size of 2 figures. Findings were that older children judged size comparison more correctly than younger children. The 5-year-old children used the strategy of superimposition more frequently than younger children, though children in all age groups most frequently used the strategy of one sided comparison with one side of each figure touching the other. The strategy in which one figure is put on top another with a general shape adjustment led most frequently to correct judgment of the relative size of 2 figures.

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중고령자의 노후준비가 삶의 만족도에 미치는 영향에 대한 연구 : 성별 비교를 중심으로 (A Study on Effects of Preparation for Aging on Satisfaction of Life : Focusing on Comparison of Gender)

  • 이경준;송희경
    • 한국콘텐츠학회논문지
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    • 제16권4호
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    • pp.757-769
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    • 2016
  • 본 연구는 중고령자의 노후준비가 삶의 만족도에 미치는 영향이 성별에 따라 차이가 있는지를 살펴보는 목적으로 분석하였다. 이를 위한 연구 자료는 국민노후보장패널 3차년도 부가조사, 4차년도 자료를 이용한 연구로서 3차년도 기준 50세 이상 64세 미만으로 남녀 중고령자 2,970명을 대상으로 분석하였다. 분석 결과 첫째, 성별에 따른 노후준비의 차이에서는 남녀 모두 통계적으로 유의미하게 차이가 있는 것으로 나타났다. 둘째, 성별에 따른 삶의 만족도 차이에서 남녀 모두 통계적으로 유의미한 차이가 있는 것으로 나타났다. 셋째, 노후준비가 삶의 만족도에 미치는 영향에 대하여 성별 차이를 비교한 결과 남녀 모두 유의미하게 차이가 있는 것으로 확인되었다. 위의 연구결과를 바탕으로 하여 중고령자의 노후준비에 따른 삶의 만족도 영향에 대한 성별 비교를 통하여 성별에 따른 노후준비와 삶의 만족도를 높이기 위한 방안과 후속연구를 위한 제언을 하였다.

노상의 비선형 모델에 근거한 비파괴 FWD 시험에 있어 정적과 동적 거동의 비교연구 (Nonlinear Subgrade Model-Based Comparison Study between the Static and Dynamic Analyses of FWD Nondestructive Tests)

  • 문성호
    • 한국도로학회논문집
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    • 제19권1호
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    • pp.73-80
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    • 2017
  • PURPOSES : This paper presents a comparison study between dynamic and static analyses of falling weight deflectometer (FWD) testing, which is a test used for evaluating layered material stiffness. METHODS: In this study, a forward model, based on nonlinear subgrade models, was developed via finite element analysis using ABAQUS. The subgrade material coefficients from granular and fine-grained soils were used to represent strong and weak subgrade stiffnesses, respectively. Furthermore, the nonlinearity in the analysis of multi-load FWD deflection measured from intact PCC slab was investigated using the deflection data obtained in this study. This pavement has a 14-inch-thick PCC slab over fine-grained soil. RESULTS: From case studies related to the nonlinearity of FWD analysis measured from intact PCC slab, a nonlinear subgrade model-based comparison study between the static and dynamic analyses of nondestructive FWD tests was shown to be effectively performed; this was achieved by investigating the primary difference in pavement responses between the static and dynamic analyses as based on the nonlinearity of soil model as well as the multi-load FWD deflection. CONCLUSIONS : In conclusion, a comparison between dynamic and static FEM analyses was conducted, as based on the FEM analysis performed on various pavement structures, in order to investigate the significance of the differences in pavement responses between the static and dynamic analyses.

비율제한 및 과제제시방법에 따른 3, 4, 5세 유아의 비상징 수 비교능력 (An Investigation Into 3-, 4-, and 5-Year-Old Children's Nonsymbolic Magnitude Comparison Ability According to Ratio Limit and Task Condition)

  • 조우미;이순형
    • 아동학회지
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    • 제38권1호
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    • pp.117-126
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    • 2017
  • Objective: The purpose of this study was to investigate young children's nonsymbolic magnitude comparison ability according to ratio limit and task condition. Methods: The participants included 40 3-year-old children, 42 4-year-old children, and 41 5-year-old children recruited from 4 childcare centers located in Seoul, Korea. All magnitude comparison tasks were composed of image material tasks and concrete material tasks. In addition, each magnitude comparison task varied with the ratio of the two quantities; 0.5 ratio, 0.67 ratio, 0.75 ratio. Results and Conclusion: The results revealed that 3-, 4-, and 5-year-old children could perform nonsymbolic magnitude comparison tasks without learning experiences. Also, 3-, 4-, and 5-year-old children could perform concrete material tasks better than image material tasks in nonsymbolic magnitude comparison tasks. Furthermore, children's performance on nonsymbolic magnitude comparison tasks indicated the ratio signature of the approximate number system. Children have a degree of numerical capacity prior to formal mathematics instruction. Also, children were influenced by task conditions or sense stimulus when they processed numerical information. Furthermore, the approximate number system can be used in understanding the ordinality of number.

전신조정술 발목관절치료가 어깨와 목에 미치는 영향 (The effects of GCM ankle joint therapy on Shoulder and Neck)

  • 형인혁;안목;배성수;문상은;채정병
    • The Journal of Korean Physical Therapy
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    • 제15권4호
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    • pp.479-487
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    • 2003
  • Tje purpose of this study is to understand body as a whole concept through examining effects of distant shoulder and neck with GCM ankle joint therapy. The twenty three subject with ankle joint therapy and comparison groups without ankle joint therapy were authorized the score of before and after therapy by correspondence T-test using pump lines and tapes as instruments. The results are as follows. 1. The test group had change of shoulder in measurement 1, 2, 3 and were regarded statistically 1st measurement on left, 2nd on right.(p<.05) 2. The test group had change of neck in measurement 1, 2, 3 and were regarded statistically 2nd on left on right.(p<.05) 3. In the comparison group the comparison of shoulder height was not regarded statistically all at 1, 2 comparison on left and regarded statistically all at 1, 2 comparison on right.(p<.05) 4. In the comparison group the comparison of neck height was not regarded statistically both left and right at 1, 2 comparison.(p<.05)

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벌꿀 섭취가 흰쥐의 지질대사 변화에 끼치는 영향 (Effect on the Change of Lipid Metabolism in Rat by Fed the Honey)

  • 정동현;백승화
    • 한국식품영양학회지
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    • 제9권2호
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    • pp.201-212
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    • 1996
  • The purpose of this study was to find an effect of honey on the lipid metabolism of Sprague Dawley rats. All experimental rats were fed ad libitum, for seven weeks, 68% saccharide diet and 10% or 20% honey from acacia, sumac and miscelllaneous flower honey, respectively, and sucrose. The food efficiency ratio of rat taken diet with honey and high fructose of control group was increased in comparison with the control group. The concentration of cholesterol in serum of rats take총 diet with and high fructose of control group was more increased in comparison with the control and normal group. The concentration of H DL-cholesterol in serum of rats taken sumac honey was increased 57.0% in comparison with the control group, but the concentration of VLDL, LDL-cholesterol in serum of rats taken diet 10PA sumac honey was decreased 48.36% in comparison with the control group. The concentration of phospholipid in serum of rats taken diet with 20% acacia or 10% miscellaneous honey was increased 24.7, 16.25%, respectively, in comparison with the control group. The concentration of free fatty acid in serum of rats taken Inlet with sumac or miscellaneous honey and high fructose was increased in comparison with the comparison with the control group. The concentration supplemented diet with acasia honey was increase in comparison with the control group. The concentration of triglyceride in serum of rat was increased by feeding of honey. The concentration of triglyceride in liver was increased, but the level of phospholipid was decreased by feeding of honey.

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마사지가 요부 유연성에 미치는 효과 연구(요통환자를 중심으로) (The study of effect lumbar flexibility by massage)

  • 엄기매;양윤권;성기석
    • 대한물리치료과학회지
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    • 제5권3호
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    • pp.633-642
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    • 1998
  • 본 연구의 목적은 요통으로 요부에 이상을 호소하는 중년여성에게 마사지를 실시하여 요부 유연성의 변화를 분석함으로써 요부 유연성에 미치는 영향을 규명하고, 향 후 요통연구에 필요한 기초자료로 제공되어 요통예방 및 완화에 도움을 주고자하는데 있다. 본 연구의 대상자는 서울시에 거주하고 있는 사람 중에서 요부에 통증이 있거나 불편하다라고 호소하는 여자 40명을 문진법으로 선정하였으며, 실험을 실시하는 동안 성실하게 참가한 실험군 15명과 대조군 15명을 선정하여 실시하였다. 이와 같은 절차를 통하여 도출한 결론은 다음과 같다. 첫째: 대조군과 실험군에 있어서 윗몸 앞으로 굽히기는 대조군은 통계학적으로 유의한 변화가 없었으나, 실험군은 통계학적으로 유의한 변화를 나타냈다. (P<0.05) 둘째: 대조군과 실험군에 있어서 윗몸 뒤로 젖히기는 대조군은 통계학적으로 유의한 변화가 없었으나, 실험군은 통계학적으로 유의한 변화를 나타냈다. (P<0.05) 셋째: 대조군과 실험군에 있어서 하지 들어올리기는 대조군은 통계학적으로 유의한 변화가 없었으나, 실험군은 통계학적으로 유의한 변화를 나타냈다. (P<0.05) 넷째: 대조군과 실험군에 있어서 윗몸 일으켜 정지시간에는 대조군은 통계학적으로 유의한 변화가 없었으나, 실험군은 통계학적으로 유의한 변화를 나타냈다. (P<0.05).

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사회비교와 행복의 관계에서 문화적 자기관의 역할 (The Moderation Effect of Cultural Self-construal on a Social Comparison and Happiness)

  • 한민 ;류승아 ;김경미
    • 한국심리학회지 : 문화 및 사회문제
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    • 제19권4호
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    • pp.577-597
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    • 2013
  • 본 연구는 사회비교와 행복의 관계에 미치는 문화적 자기관의 영향을 살펴보기 위해 수행되었다. 사회비교와 행복은 부적관계에 있다고 알려져 있지만 사회비교의 결과는 비교 당사자의 자기인식과 비교동기에 따라 달라진다는 견해 역시 존재한다. 본 연구는 문화적 자기관이 사회비교와 행복에 미치는 영향을 알아보고자 전국 5대 권역(수도권, 강원, 충청, 전라, 경상)에서 표집한 권역 당 4개 연령대(30대, 40대, 50대, 60대) 각 100명씩, 총 2,000명을 대상으로 문화적 자기관(상호협조적 자기, 주체성-대상성 자기), 사회비교경향, 주관적 안녕감 및 심리적 안녕감을 조사하였다. 연구의 결과를 요약하면, 첫째, 상호협조적 자기는 사회비교와 정적상관을, 행복과는 부적상관을 보였고, 둘째, 상호협조적 자기가 높은 사람들은 사회비교를 많이 할수록 주관적 안녕감이 낮았지만, 낮은 사람들은 사회비교가 행복에 영향을 끼치지 않았다. 셋째, 대상성 자기가 높은 사람들은 사회비교를 많이 할수록 행복이 낮았지만, 주체성 자기가 높은 사람들은 사회비교가 행복에 영향을 미치지 않았다. 이를 바탕으로 사회비교의 결과에 영향을 미치는 자기관의 성격과 행복의 문화적 의미 등에 대해 논의하였다.

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시료성형에 따른 점성토의 변형.강도 특성에 관한 연구 (A Study on the Strength and Deformation Characteristics of Clay due to the Specimen Shaping)

  • 박종수;박춘식;장정욱
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2005년도 춘계 학술발표회 논문집
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    • pp.1227-1232
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    • 2005
  • This study carried out unconfined compression tests to identify deformation and strength characteristics of clay. The conclusions are presented in the following. (1) The comparison of unconfined compression strengths according to specimen disturbance showed great differences, except for a few data. (2) The comparison of ${E_{50}}'s$ according to specimen disturbance proved that the two values were similar in general. (3) The comparison of strains at the peak according to specimen disturbance showed that non-shaped specimens had been slightly more disturbed in general. (4) The comparison of $E_{50}/q_u$ also suggested that non-shaped specimens had been slightly more disturbed in general.

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PC 및 RC공동주택 골조공사에 대한 공사기간 절대비교 (Absolute Comparison of Construction Periods between Precast Concrete and Reinforced Concrete Apartment Buildings )

  • 김기호;이범식;김진원;김연호;이동건;손정락
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2023년도 봄 학술논문 발표대회
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    • pp.293-294
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    • 2023
  • In accordance with recent changes in construction trends, interest in introducing the OSC, such as the Precast Concrete, is increasing in apartment buildings. In domestic studies, studies on the prediction of the construction period of PC apartment buildings through simulation have been conducted, but there is no study on the comparison of the construction period according to the actual construction of Precast Concrete(PC) and Reinforced Concrete(RC). Therefore, this study seeks to grasp the technology of the current PC construction method and to secure the original technology of project management through comparison of the absolute time of frame construction for PC and RC buildings composed of the same plane.

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