• 한국지진공학회논문집
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• 제18권1호
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• pp.63-71
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• 2014

This study presents an experimental study of the structural behavior for steel plate-concrete column-to-steel girder connections. Experiments were carried out to investigate the moment-rotation characteristics, failure behavior and ultimate moment capacity of these connections. The results of this experimental study involving three welded moment-resisting connections subjected to cyclic loading are presented. The specimens were fabricated at full scale to evaluate their hysteretic behavior. A description of the test specimens, the details of the joint, the test system and the testing methods are described. The test results showed that the structural behavior of these composite connections was influenced by the connection details.

• 한국복합재료학회:학술대회논문집
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• 한국복합재료학회 2000년도 추계학술발표대회 논문집
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• pp.67-70
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• 2000

This study was performed to investigate the material behavior of hybrid thermoplastic composites contained glass fiber and calcium carbonate. The composite was prepared with each combination ratio of calcium carbonate, and the content of glass fiber was fixed with 10% by weight. In order to investigate the material behavior for various combination ratio, tension test, flexural test, and impact test were performed. Microscopic observation were conducted to examine the fractured surface of specimen for tension test. And the material behavior of the hybrid thermoplastic composite immersed in salt water with definite time was investigated.

• 한국지반공학회논문집
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• 제22권10호
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• pp.151-163
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• 2006

본 논문에서는 모래의 비배수 정적전단거동과 반복전단거동의 상호관계를 분석하기 위하여 낙동강 모래를 사용하여 비배수 정적 및 반복삼축시험을 실시하였다. 정적삼축시험은 반복전단거동과의 상호비교를 위하여 인장시험을 포함하여 실시하였다. 그리고 반복삼축시험은 초기정적전단응력$(q_{st})$과 반복응력$(q_{cy})$조건을 조합하여 여러 응력조건 하에서 실시하였다. 시험결과 반복전단거동의 응력경로는 정적전단거동의 한계응력비(CSR)선을 지나면서 유동변형이 발생하여 정적전단거동과 일치하였으며, 그 후 정적전단거동의 파괴선(FL)을 따라 파괴가 발생하였다. 이러한 반복 전단거동의 응력경로는 시험방법이 다름에 따른 약간의 차이는 있으나 정적전단거동의 응력경로와 본질적으로 동일함을 알 수 있었다.

• Geomechanics and Engineering
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• 제31권4호
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• pp.423-437
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• 2022

The objective of the study is to evaluate the feasibility of the dynamic behavior of slope through both 1 g shaking table test and numerical analysis. Accelerometers were installed in the slope model with different types of seismic waves. The numerical analysis (ABAQUS and DEEPSOIL) was used to simulate 1 g shaking table test at infinite boundary. Similar Acceleration-time history, Spectral acceleration (SA) and Spectral acceleration amplification factor (Fa) were obtained, which verified the feasibility of modeling using ABAQUS and DEEPSOIL under the same size. The influence of the size (1, 2, 5, 10 and 20 times larger than that used in the 1 g shaking table test) of the model used in the numerical analysis were extensively investigated. According to the similitude law, ABAQUS was used to analyze the dynamic behavior of large-scale slope model. The 5% Damping Spectral acceleration (SA) and Spectral acceleration amplification factor (Fa) at the same proportional positions were compared. Based on the comparison of numerical analyses and 1 g shaking table tests, it was found that the 1 g shaking table test result can be utilized to predict the dynamic behavior of the real scale slope through numerical analysis.

• 한국환경교육학회지:환경교육
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• 제10권2호
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• pp.213-228
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• 1997

This study was planned to test the educational effects of self-guiding environmental interpretation panel. For purpose of the study, self-guiding interpretation panel was set up along the trail of green shower area of Kwang-Reung Arboretum in 1995,and the environmental behavior related variables such as attitude, locus of control, personal responsibility, general knowledge, and intention to act were closen based on Hines and his colleagues' Responsible Environmental Behavior model(1987). The pre-test/post-test non-random control group design was introduced fo test the effects of panel. ANCOVA was used to test the differences between experimental and control group because of the need to consider the effects of other variable such as socio-economic variables on the changes of environmental behavior related variables. Among 5 environmental behavior related variables, the changes of attitude and knowledge were significantly different between experimental group and control group, and the experimental group's direction of change was more favorable for environment. It is concluded that the educational effects of self-guiding interpretation panel were partially accepted. Several recommendations and restrictions of the study are presented.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 1997년도 추계학술대회 논문집
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• pp.759-764
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• 1997

In this study, Fatigue behavior of laser weldment in heterogeneous materials was investigated. Fatigue strength test and fatigue crack propagation test were performed for specimens with laser weldment in heterogeneous materials, and hardness test was performed. From the fatigue strength test. it was observed that the difference of strength between heterogeneous materials had eflect on crack initiation position and fatigue limit. From the fatigue crack propagation test. it was observed that fatigue behavior of laser weldment in heterogeneous materials is different from that in same materials. The difference of strength between heterogeneous materials and laser weldment had effect on fatigue crack propagation rate.

• 한국의류학회지
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• 제30권5호
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• pp.800-806
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• 2006

The purpose of this study was to investigate the differences in the make-up behavior influenced by make-up preference images, and the order of importance in the make-up behaviors. The questionnaires were given to female residents in the ages between $20\sim45$ in Seoul and Kyung-gi province during October 2004. 322 questionnaires were used for data analysis. The collected data were analyzed by using SPSS 10.0 software with various techniques such as ANOVA test, Duncan test and Paired t-test. The make-up behaviors were divided into three main categories: facial make-up behavior, color make-up behavior, and additional make-up behavior. The results showed that the skin care behavior was considered the most important among other make-up behaviors. Generally facial make-up was thought to be most important and color make-up, and additional make-up were followed orderly. The results of the make-up behavior differences by make-up preference image. The natural make-up preference image group considered all the make-up behavior less important than other make-up preference image groups. The modern make-up preference image group considered additional make-up behavior more important.

• 대한물리치료과학회지
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• 제8권2호
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• pp.977-987
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• 2001

The purpose of this study was to examine the effects of sensory integration therapy (SIT) on sensory' motor development and adaptive behavior of cerebral palsy children. The design of this study was quasi experiments with a non-equivalent pre- and post-test control design. Subjects of the study were arbitrarily chosen based on predetermined selection criteria among the cerebral palsy children who were treated as out-patients at two rehabilitation hospitals one in Seoul, and the other in Kyunggi-do. The study was conducted between early April and late July in 2000. Fifteen children were in the experimental group and eleven in the control group. The allocation was done based on ease of experimental treatment. A five-step SIT program was devised from a combination of SIT programs suggested by Ayres(1985) and Finks(1989), and an author-designed SIT program for cerebral palsy children. The experimental group was subjected to 20 to 30 minutes of SIT per session. two sessions a week for ten -week period. The effects of SIT were measured with respect to 9 sub-areas that can be administered to cerebral palsy children out of a total of 17 sub-areas in the Southern California Sensory Integration Test (SCSIT) developed by Ayres (1980). In addition. the scale developed by Russell (1993) for Gross Motor Function Measure (GMFM). and Perception Motor Development Test developed by 中司利一 et al.(1987) were also applied. Adaptive behavior was analyzed using guidelines in two unpublished documents - School-Age Checklist for Occupational Therapy by the Wakefield Occupational Therapy Associates, and the OTA-Watertown Clinical Assessment by the Watertown Occupational Therapy Associates-, and an author-developed Adaptive Behavior Checklist. Collected data were statistically analyzed by SPSS PC for chi square test, Mann-Whitney test, Wilcoxon signed rank test, and paired t-test. The results were as follows: 1. In sensory development, the experimental group exhibited a score increase compared to the control group, but the difference was not statistically significant, Although the experimental group showed improvements in all. 9 sub-areas compared to the control group, only right-left discrimination exhibited statistically significant change. 2. In gross motor development, the experimental group showed improvements in score compared to the control group, but it was not statistically significant. In fine motor development, the experimental group exhibited statistically significant improvements compared to the control group. In sub-area analysis, figure synthesis showed positive change. 3. In adaptive behavior development, post-experimental adaptive behavior scores were higher compared to pre-experimental scores with statistical significance. Furthermore, sub-areas emotional behavior, perception behavior, gross-fine motor function, oral-respiration function, motor behavior, motor planning, and adaptive response exhibited higher scores after SIT. In conclusion SIT was found to be partially effective in sensory and fine motor development, effective in all adaptive behavior areas, and not effective in gross motor development. Thus, this study has shown that SIT is an effective intervention for sensory development, fine motor development, and adaptive behavior for cerebral palsy children. But, for the effectiveness of SIT on gross motor development, further studies employing longer-time experiments are recommended.

• 한국컴퓨터정보학회논문지
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• 제24권4호
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• pp.177-183
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• 2019

The purpose of this study is to analyze the effect of behavior attitude and subjective norm on food festival behavior intention of married women living in Ulsan area. The data were analyed with PASW 18.0 using reliability analysis, frequency analysis, paired T-test, T-test, correlation analysis, one-way ANOVA and multiple regression analysis. The results were as follows. First, First, married women had a slightly higher passive behavior intention than aggressive behavior intentions on food festivals. Second, the more the experience of past food festivals, the higher the economic level, the higher the housewife's housewives, the higher the food festival behavior intention. Third, the behavioral intention of food festival increased with higher behavioral attitude and subjective norms. Fourth, subjective norms were the most influential variable for the behavioral intention of married women. Next, the behavior attitude for food festival was found.

• 한국농촌생활과학회지
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• 제8권1호
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• pp.57-72
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• 1997

The purpose of this study was to investigate some influencing variables related to the management behavior on environmental preservation of housewives in Pusan. The subject of this study were 411 housewives and interviewed with a questionnaire. The data was analyzed by SPSS/PC＋ Program for the frequency, mean, standard deviation, Cronbach's$\alpha$, t-test, F-test, Duncan's multiple range test and regression. The major result of this study were as follows : 1. The level of Environmental Management Knowledge was relatively high. The perceived level of environmental pollution was relatively high. The score of perception on water pollution was the highest. The level of management behavior on environmental preservation was relativity low. The score of management behavior on food pollution was the highest. 2. Frequencies of management behavior on environmental preservation differ according to age, education, relegion, and mass - media. 3. The influenced level of perception on air pollution was the highest among the other variables.