• 제목/요약/키워드: Inclination test

검색결과 313건 처리시간 0.021초

Acceleration data and shape change characteristics of a gravity quay wall according to inclination condition grades

  • Su-Kyeong Geum;Jong-Han Lee;Dohyoung Shin;Jiyoung Min
    • Structural Engineering and Mechanics
    • /
    • 제90권6호
    • /
    • pp.591-600
    • /
    • 2024
  • This study investigated the acceleration response and shape change characteristics of a gravity quay wall according to the magnitude of the applied acceleration. The quay wall was defined as a port facility damaged by the Kobe earthquake. Four experimental scenarios were established based on the inclination condition grades, considered to be a significant defect factor in the quay wall. Then, the shaking table test was conducted using scaled-down quay wall models constructed per each scenario. The ground acceleration was gradually increased from the peak ground acceleration (PGA) of 0.1 g to 0.7 g. After each ground acceleration test, acceleration installed on the wall and backfill ground and inclination on the top of the wall were measured to assess the amplification of peak response acceleration and maximum response amplitude and the change in the inclination of the quay wall. This study also analyzed the separation of the quay wall from the backfill and the crack pattern of the backfill ground according to PGA values and inclination condition grades. The result of this study shows that response acceleration could provide a reasonable prediction for the changes in the inclination of the quay wall and the crack generation and propagation on the backfill from a current inclination condition grade.

다양한 발목 경사를 통한 균형 훈련이 건강한 성인의 동적 균형에 미치는 영향 (Effects of Balance Training through Various Ankle Inclination on Dynamic Balance in Healthy Adults)

  • 김누리;김강미;이정은;이하경;차유리
    • 대한물리치료과학회지
    • /
    • 제25권3호
    • /
    • pp.61-67
    • /
    • 2018
  • Background: The purpose of this study is to report the effect of balance training through various ankle inclination on dynamic balance in healthy adults. Methods: This study was participated in 20 healthy subjects. Twenty healthy adults were randomly divided into 10 ankle inclination group and 10 flat group, 3 kinds of exercised were performed in $30^{\circ}$ of the plantar flexion, $0^{\circ}$ of the neutral angle and $30^{\circ}$ of the dorsiflexion. Above 3 kinds of exercises were also performed in the flat group. Dynamic balance of each group was evaluated using a Figure-of-8 hop test, Up-down hop test, and Functional reach test before and after the experiment. Results: In the ankle inclination, the post-experiment showed a significant difference in Figure-of-8 hop test, Up-down hop test, and Functional reach test in comparison to pre-experiment(p<.05). Conclusion: The exercise applied in the ankle inclination is effective in improvement of the dynamic balance.

저류판 특성을 이용한 침전지 경사판에 관한 연구 (A Study on the Settler of Inclination Plate using Fin Character)

  • 양원영
    • 한국물환경학회지
    • /
    • 제22권4호
    • /
    • pp.614-618
    • /
    • 2006
  • The purpose of this paper, was to compare its result with both the settler of inclination plate and the settler of stick fin through the pilot test to know optimized interval of fin. According to intervals of fin, We get most optimized interval of fin in laboratory is inclination plate with $60^{\circ}$ and wide of fin with 50 mm, interval of fin with 150 mm. The result of laboratory showed 67.6~70.6%, 70.4~74.2% for the settler of inclination plate, the settler of inclination plate stick fin. The sedimentation efficiency of the settler of inclination plate stick fin showed 2.8% higher than the sedimentation efficiency of the settler of inclination plate. From now on, Inclination plate settler stick fin requirement in study.

The Immediate Effects of Posterior Pelvic Tilt with Taping on Pelvic Inclination, Gait Function and Balance in Chronic Stroke Patients

  • Wu, Yang-Ting;Choe, Yu-Won;Peng, Cheng;Kim, Myoung-Kwon
    • 대한물리의학회지
    • /
    • 제12권3호
    • /
    • pp.11-21
    • /
    • 2017
  • PURPOSE: The purpose of this study is to identify the immediate effect of posterior pelvic tilt taping on anterior pelvic inclination, gait function, and balance in chronic stroke patients. METHODS: Fourteen chronic stroke subjects were enrolled in this study. Subjects who consented to participate in this cross-over experiment were assigned three interventions: posterior pelvic tilt taping, placebo taping, and no taping, in random order. After tape application, subjects were asked to complete: 1) Anterior pelvic tilt measurement, 2) 10-Meter Walk test, and 3) Limits of stability (LOS) test. To eliminate the learning effect of the tape after tearing off the tape, a 10 minute break was given between posterior pelvic tilt taping intervention and placebo taping intervention. RESULTS: Significant decreases were observed for the anterior pelvic inclination on both sides after posterior pelvic tilt taping application compared with placebo taping and no taping application (p<.05). Post hoc test results differed significantly in the 10-meter walk test after intervention (p<.05). However, there were no significant differences in limits of stability test after intervention (p>.05). CONCLUSION: Posterior pelvic tilt taping in chronic stroke patients decreases the inappropriate anterior pelvic inclination immediately and improves gait function, but it has little effect on balance.

청소년이 지각한 부모의 물질주의 성향과 그에 따른 유형 분류 및 재정적 특성 분석 (Classification of Parents' Materialism Inclination Recognized by the Adolescents and Analysis of Their Financial Characteristics)

  • 홍은실
    • 가정과삶의질연구
    • /
    • 제26권5호
    • /
    • pp.377-390
    • /
    • 2008
  • This paper investigated materialism inclination of the parents recognized by the adolescents and analysed the relationships between 5 categorized types about parents' materialism inclination and financial characteristics of the adolescents. Statistical analysis was achieved by using Cronbach'$\alpha$, paired t-test, one-way ANOVA, two-way ANOVA, Duncan's multiple range test, chi-square analysis, and Ward' hierarchical cluster analysis with a total of 801 questionnaires. The results are summarized as follows: First, the adolescents felt that calculated points of father and mother's materialism inclination were lower than median points and mother's inclination for materialism was higher than that of father. Second, five categories were classified according to materialism inclination of parents. First classified category was the type which showed both parents had little interest in materials and the second category was the type which father had strong interest in materials. The third one was the type which mother had strong interest in materials. The last two categories were the ones which both parents had much interest in materials. Final result of this study revealed that attitudes of the adolescents for materialism and money were higher for those whose parents had strong interest in materialism than those whose parents had little materialism interest. They showed not only the behaviors of impulsive and overspending consumption but also low financial satisfaction and high financial stress.

경사진 원형관내에서의 강제대류비등 열전달에 대한 실험적 연구 (An Experimental Study on the Convective Boiling in Inclined Tubes)

  • 이홍욱;이준식;박군철
    • 설비공학논문집
    • /
    • 제13권8호
    • /
    • pp.674-681
    • /
    • 2001
  • An experiment is conducted to investigate the effect of the inclination angle on convective boiling heat transfer of a uniformly heated tube. The test section used is a stainless steel tube with10.7mm in inner diameter. The hating length is 3m and is heated directly by an AC current. The test fluid is R-113. Experiment are carried out with mass flow rates of 300, 500 and $700\;kg/m^{2}s$, and heat fluxes varying from 5 to 65 kW/$m^2$. The inclination angles of the tube are $0^{\circ},\;5^{\circ},\;11^{\circ}\;and\;25^{\circ}$. the circumferential temperature variation at low quality region and the location of dryout at high quality region are mainly observed. Circumferential anisothermality occurring at low mass flow rate and low quality conditions is gradually reduced with the increase in the inclination angle and finally disappears at the inclination angle of $25^{\circ}$. Critical quality where dryout is initiated is seriously influenced by the inclination angle. Wall temperature after critical quality is also affected by the inclination angle.

  • PDF

Relationship between Gait, Static Balance, and Pelvic Inclination in Patients with Chronic Stroke

  • Choe, Yu-Won;Kim, Kyu-Ryeong;Kim, Myoung-Kwon
    • 대한물리의학회지
    • /
    • 제16권1호
    • /
    • pp.17-22
    • /
    • 2021
  • PURPOSE: This study examined the correlations between gait, static balance, and pelvic inclination in patients with chronic stroke. METHODS: Twenty-two chronic stroke patients were included in this study. The subjects participated in gait, static balance, and pelvic inclination tests. In the gait measurement, the cadence and gait velocity were measured, and the average of three trials was calculated and recorded. The static balance was measured using a force platform. The data was captured for ten seconds, and five successful trials were recorded. Pelvic inclination in the sagittal plane was measured using a palpation meter. For data processing, a KolmogorovSmirnov test was used to determine the type of distribution for all variables. Pearson's correlation coefficient was used for correlation analysis. The correlations among the gait, static balance, and pelvic inclination was calculated. The level of significance was .05. RESULTS: Significant negative correlations were observed between the gait variables (cadence, velocity) and static balance variables (COP path length, COP average velocity, and 95% confidence ellipse area) (p < .05). On the other hand, there was no significant correlation between pelvic inclination and gait or between the pelvic inclination and static balance variables. CONCLUSION: Significant correlations were observed between the gait function and static balance. On the other hand, there were no significant correlations between the pelvic inclination and gait and static balance. These results suggest that the pelvic inclination is not an important consideration for increasing the gait function and static balance.

취향검사 지능적 에이전트기반 학습공동체 그룹핑 E-learning 시스템 설계 및 개발 (Development of Intelligent Agent Based Inclination Test Grouping E-learning System (IIGS))

  • 김명숙;조영임
    • 한국멀티미디어학회논문지
    • /
    • 제8권4호
    • /
    • pp.544-553
    • /
    • 2005
  • 본 논문에서는 사회적 상호작용을 극대화 하고, 중도 탈락률을 낮추며, 학습자의 고립감을 해소하기 위해 바람직한 온라인 학습공동체 형성을 위해 취향검사 항목을 개발 하였으며, 개발한 취향검사 항목을 동질성과 이질성으로 구분하여 항목을 개발하고, 이를 바탕으로 온라인상에서 지능적 에이전트 기법에 의한 학습공동체를 자동으로 그룹핑하는 e-learning 시스템(IIGS)을 개발하였다. 실제 1,000명을 대상으로 실험한 결과, 151개 그룹이 자동으로 생성되었으며 이중 34% 정도가 매우 높은 학습만족을 보여 그룹을 계속적으로 유지하고자 하였다.

  • PDF

Pool-Boiling Critical Heat Flux of Water on Small Plates: Effects of Surface Orientation and Size

  • Yang, Soo-Hyung;Baek, Won-Pil;Chang, Soon-Heung
    • 한국원자력학회:학술대회논문집
    • /
    • 한국원자력학회 1996년도 춘계학술발표회논문집(2)
    • /
    • pp.337-342
    • /
    • 1996
  • The pool-boiling critical heat flux (CHF) of water on small flat plates has been experimentally investigated focusing on the effects of the inclination angle and size of the heated surface under near atmospheric pressure. The second-phase experiment was accomplished to find out the general CHF behavior for over-all inclination angles from -90$^{\circ}$ to 90$^{\circ}$using two plate-type test sections (30$\times$150 mm and 40$\times$150 mm) submerged in a slightly subcooled water pool. Test results generally confirm the first-phase findings and show little effect of inclination angle for inclined upward-facing cases. CHF position moves to lower position with the increase of the heater characteristic size and inclination angle(from -30$^{\circ}$to 60$^{\circ}$).

  • PDF