• Steel and Composite Structures
• /
• 제16권1호
• /
• pp.97-114
• /
• 2014

This paper deals with a study on ultimate strength behaviour of eccentrically loaded CFT columns with and without shear connectors. Thirty specimens are subjected to experimental investigation under eccentric loading condition. P-M curves are generated for all the test specimens and critical eccentricities are evaluated. Three different D/t ratios such as 21, 25 and 29 and L/D ratios varying from 5 to 20 are considered as experimental parameters. Six specimens of bare steel tubes as reference specimens, twelve specimens of CFT columns without shear connectors and twelve specimens of CFT columns with shear connectors, in total thirty specimens are tested. The P-M values at the ultimate failure load of experimental study are found to be well agreed with the results of the proposed P-M interaction model. The load-deflection and load-strain behaviour of the experimental column specimens are presented. The behaviour of the CFT columns with and without shear connectors is compared. Experimental results indicate that the percentage increase in load carrying capacity of CFT columns with shear connectors compared to the ordinary CFT columns is found to be insignificant with a value ranging from 6% to 13%. However, the ductility factor of columns with shear connectors exhibit higher values than that of the CFT columns without shear connectors. This paper presents the proposed P-M interaction model and experimental results under varying parameters such as D/t and L/D ratios.

• 한국의류학회지
• /
• 제24권1호
• /
• pp.105-115
• /
• 2000

This study was intended to find body pattern of middle aged women and make new experimental basic pattern for upper-half of the body for them. This experimental pattern on the idea of body pattern analysis was prepared. For experimental pattern, the prototype basic model was chosen with the best qualified D model from the four meaningful existing patterns. After several steps of correction experimental pattern was made. Comparing with basic D model, the new experimental pattern composed of additional bust girth by 1cm, wider back waist by 0.5cm than front waist and additional armhole by 0.5cm keeping the same size for back and front widths. Making a shoulder line up by 3cm the armhole became deeper accordingly and the room for girth has been transferred to length. Front neck girth became deeper downward but back neck girth risen a little bit. Side line of the bodice formed with inward slope taking from the waist line by 2cm. Instead of dart, modified side line slope was more practical by its function and appearance. Abdominal girth which is lower than waist girth by 8.5cm kept in same size with bust girth. Then abdominal girth became more comfortable. New experimental pattern with changes has been examined in function and appearance. In conclusion, the new experimental basic pattern for the middle-aged women has been proved more practical for both in bodice and sleeve than other existing ones in terms of function and appearance.

• 한국전문물리치료학회지
• /
• 제9권3호
• /
• pp.1-9
• /
• 2002

The purpose of this study was to compare the experimental pain threshold when used in luminous lamp radiation and nonluminous lamp radiation with healthy person. Thirty normal subjects were randomly assigned two groups: a luminous lamp radiation group, and a nonluminous lamp radiation group. The infrared lamps were applied on L3 for thirty minutes. Each group was measured for experimental pain threshold and local temperature before, 15 and 30 minute radiation. For statistical differences in change of the experimental pain threshold and local temperature due to differences in lamp ray was compared using the independent t-test. And, General linear model for profile plots test was used. The results were as: 1. Local temperature was significantly increased in the nonluminous lamp group (p<.01). 2. Experimental pain thershold was significantly increased in the luminous lamp group (p<.05),(p<.01). This study indicate that luminous lamp radiation was more effects of increase experimental pain thershold than nonluminous lamp radiation. Further study is needed to compare the effects of after period radiation.

• 복식문화연구
• /
• 제9권1호
• /
• pp.111-126
• /
• 2001

This study concentrates on the relationship between the early 20th century italian artists and their works in the field of clothing design. They advocated the creation of art for life and introduced a new type of work of art which I will call 'experimental clothing for art'. The experimental clothing for art showed its dynamic characteristics in the field s of line and form, color, pattern, and material. The Italian artists made simple and functionalistic dresses, using asymmetric, geometric cuts. in pattern making. They employed dynamic patterns in textile design and favored brilliant colors which they debunked as storage and traditional. With regard to material, they used unusual materials such as metal, net, wire, and paper and inexpensive materials. To investigations of the visual expression of experimental clothing for art in Italy have led us to the internal expressions which are avant-garde, dynamic & speed, functionality & popularity, ephemeral & transformable, and warlike. As a result of the reflection of the times and the artists's will and roles the experimental clothing for art in Italy implicated contemporary clothing in the early twentieth century and it was only laboratory art that underwent various experiments in canvas but a model of efforts for the at of living, which was anti-traditional. It offered a new future and created a new environment. It is left for future research how the experimental clothing for art developed in countries other than Italian.

• 대한간호학회지
• /
• 제29권6호
• /
• pp.1254-1262
• /
• 1999

The purpose of this study was to examine the effects of 6-wk low intensity exercise program on fatigue, perceived health state, exercise-related affect, perceived benefits, and exercise self-efficacy for female college student's. The subjects of the study consisted of thirty-four female college students. The research subjects were assigned to experimental and control group. The experimental group participated in 13-17 and 30-60 minute sesseions of exercise program over 6 weeks. Data analysis was done by t-test with SAS program. The results of this study are as follows. 1) The first hypothesis, “The fatigue of experimental group will be lower than control group”, was supported. 2) The second hypothesis, “The perceived health state of experimental group will be higher than control group”, was not supported. 3) The third hypothesis, “The exercise-related affect of experimental group will be higher than control group”, was not supported. 4) The fourth hypothesis, “The benefits of exercise of experimental group will be higher than control group”, was not supported. 5) The fifth hypothesis, “The self-efficacy for exercise of experimental group will be higher than control group”, was supported.

• 대한간호학회지
• /
• 제34권5호
• /
• pp.739-750
• /
• 2004

Purpose: This study was to evaluate the effects of foot reflexology on blood pressure, serum lipids level and life satisfaction in essential hypertension patients. Method: The research design used was a nonequivalent control group pretest-posttest design. Foot Reflexology was used as the experimental treatment from June 23rd, 2003 until August 31st, 2003. Thirty-four subjects were assigned to an experimental group(18) and control group(16). Foot Reflexology was administered twice a week for 6 weeks and self foot Reflexology was administered twice a week for 4 weeks on the experimental group. Result: There was a significant decrease in systolic blood pressure but no significant decrease indiastolic pressure in the experimental group compared to the control group. The total cholesterol level in the experimental group compared to the control group was not significantly decreased after foot reflexology. However, the triglyceride level in theexperimental group compared to the control group was significantly decreased after foot reflexology. On the other hand, high density lipoprotein and low density lipoprotein levels in the experimental group compared to the control group was not significantly decreased after foot reflexology. Life satisfaction in the experimental group compared to the control group was significantly improved after foot reflexology. Conclusion: The results proved that foot reflexology was an effective nursing intervention to decrease systolic pressure, and triglyceride but not for the blood cholesterol and to improve life satisfaction. Therefore, blood cholesterol should be further evaluated in a larger group of subjects and for a longer period. Further research is regarded as necessary to evaluate and to compareeffects of self-foot reflexology and foot reflexology.

• 한국콘텐츠학회논문지
• /
• 제10권1호
• /
• pp.59-67
• /
• 2010

임베디드 시스템 과목을 위한 실습 과제는 주로 임베디드 보드와 소프트웨어 개발 도구를 사용한 하드웨어 실습 키트로 진행된다. 하드웨어 실습 키트는 높은 초기 설치비용, 유지보수의 어려움, 산업계 발전에 비적응적 대처, 교육적 성과의 한계와 같은 단점을 가지고 있다. 본 논문은 임베디드 시스템 하드웨어 실습 키트의 단점을 극복할 수 있는 시뮬레이션 기반의 가상 실습 환경의 사용을 제안하고 가상 실습 키트의 설계 및 구축에 대하여 기술한다. 구축된 가상 실습 키트는 ARM 사의 ARMulator 환경에 기반을 두어 마이크로프로세서 시스템의 주요 하드웨어 IP들을 추가하고 주변장치들을 위한 사용자 인터페이스 모듈을 개발하여 구축되었다. 검증용 예제 프로그램을 이용하여 동작의 정확성을 확인하였으며 실시간 운영체제 실습도 가능하도록 MicroC/OS-II를 이식하였다.

• International Journal of Concrete Structures and Materials
• /
• 제11권2호
• /
• pp.377-389
• /
• 2017

Tests of the lateral and torsional stability are quite sensitive to the experimental conditions, such as support conditions and loading system. Controlling all of these conditions in a full-size test is a very challenging task. Therefore, in this paper, an experimental measurement method that can control the experimental conditions using a small-scale model was proposed to evaluate the lateral and torsional stability of beams. For this, a loading system was provided to maintain the vertical direction of the load applied to the beam, and a support frame was produced to satisfy the in-plane and out-of-plane support conditions. The experimental method using a small-scale model was applied successively to the lateral and torsional behavior and stability of I-shaped beams. The proposed experimental methods, which effectively accommodate the changes in the geometry and length of the beam, could contribute to further experimental studies regarding the lateral and torsional stability of flexural members.

• Steel and Composite Structures
• /
• 제23권6호
• /
• pp.647-656
• /
• 2017

This paper presents an experimental study on the behaviour of steel beams with different types of web openings. Steel beams with web openings became progressively more accepted as a well-organized structural form in steel construction since their existence. Their complicated design and profiling method provides better flexibility in beam proportioning for strength, depth, size and location of holes. The objective of this study is to carry out the experiments on steel beams with different types of web openings and performed non-linear finite element (FE) analysis of the beams that were considered in the experimental study in order to determine their ultimate load capacity and failure modes for comparison. Ten full scale models of steel beam with web openings have been tested in the experimental investigation. The finite element method has been used to predict their entire response to increasing values of external loading until they lose their load carrying capacity. FE model of each specimen that is utilized in the experimental studies is carried out. These models are used to simulate the experimental work to verify test results and to investigate the nonlinear behaviour of failure modes such as local buckling, lateral torsional buckling, web-post buckling, shear buckling and Vierendeel bending of beams.

• 대한간호학회지
• /
• 제13권3호
• /
• pp.95-105
• /
• 1983

The purpose of this study was investigated the effects of education for nursing concept to the nursing students who are not attended to major course of nursing education in nursing college. it is hoped that this education for nursing concept will be contribute to positive nursing conceptualization for nursing students. The data for this study obtained from 118 students in attending college of nursing Ewha womens University(1st year; 62, End year; 56). 1st year students(experimental group) was attended to the education for nursing concept by investigators and 2nd year students(control .group) did not. After then tested to two group: Pre and post test for experimental group and post test only to control group. The results obtained were as follows: 1) In experimental group, pre-test mean score was 116.19(SD 50.46) and post-test mean score was 253.02 (SD 66.56). Therefore post-test mean score was higher than pre-test mean score (p=0.0001). 2) There were different score between the experimental group and control group. Control group was higher(207.58, SD 52.42) than experimental group(116.19, SD 50.46) at the pre-test (p=0.0002), but experimental group(253.02, SD 66.56) was higher than control group. (207 58, SD 52.42) at post-test(p=0.0001). These results implied that early intensive education for nursing concept might have positive effects on nursing conceptualization for nursing students.