• Wind and Structures
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• 제5권2_3_4호
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• pp.291-300
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• 2002

An efficient large eddy simulation algorithm is used to compute surface pressure distributions on an eleven story (target) building on the NIST campus. Local meteorology, neighboring buildings, topography and large vegetation (trees) all play an important part in determining the flows and therefore the pressures experienced by the target. The wind profile imposed at the upstream surface of the computational domain follows a power law with an exponent representing a suburban terrain. This profile accounts for the flow retardation due to friction from the surface of the earth, but does not include fluctuations that would naturally occur in this flow. The effect of neighboring buildings on the time dependent surface pressures experienced by the target is examined. Comparison of the pressure fluctuations on the single target building alone with those on the target building in situ show that, owing to vortices shed by the upstream buildings, fluctuations are larger when such buildings are present. Even when buildings are lateral to or behind the target, the pressure disturbances generate significantly different flows around this building. A simple grid-free mathematical model of a tree is presented in which the trunk and the branches are each represented by a collection of spherical particles strung together like beads on a string. The drag from the tree, determined as the sum of the drags of the component particles, produces an oscillatory, spreading wake of slower fluid, suggesting that the behavior of trees as wind breakers can be modeled usefully.

• 대한지역사회영양학회지
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• 제16권6호
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• pp.683-696
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• 2011

This study compared levels of health beliefs and health behavior practices according to lifestyle pattern among adults in Seoul. A self-administered survey questionnaire was collected from a total of 1,004 Seoul residents aged 30-59 years. The levels of perceived benefit, perceived barrier, and self-efficacy from health belief model and health behavior practices were measured across multiple health behavior areas including dietary behavior, drinking, smoking, exercise, functional food consumption, and weight control behavior. Factor analysis and subsequent cluster analysis based on 28 lifestyle questions divided the subjects into four lifestyles of society-, economy-, trend-, and health-oriented lifestyle. Some general characteristics were significantly different by lifestyles. The society-oriented lifestyle was significantly higher in proportions of men and overweight. The trend-oriented lifestyle was significantly younger and spent more monthly allowance. Health-oriented lifestyle was older. The levels of health belief variables and health behavior practices significantly differed by lifestyles. Overall the health-oriented lifestyle showed more desirable levels of health belief variables and health behavior practice in various health behavior areas compared to the other lifestyles, whereas the society-oriented lifestyle was found the other way. Health belief model variables including perceived benefit, perceived barrier, and self-efficacy were generally significant in predicting the levels of various health behavior practice, with somewhat differences by lifestyle pattern and health behavior type. The study findings suggest it may be useful to segment target subjects according to lifestyle pattern in planning and administering health education programs.

• 치위생과학회지
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• 제12권4호
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• pp.375-382
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• 2012

본 연구는 치위생과 학생들이 효과적으로 자기조절학습을 하기 위한 성취목표지향성을 파악하고 이러한 적응적인 성취목표지향을 유도하기 위한 수업 환경을 제안하고자 대구 충북지역의 소재하는 치위생과 재학생 387명을 대상으로 성취목표 지향성 및 자기조절학습 능력 및 영향력을 일원다변량분석과 다중회귀분석을 이용하여 알아보았다. 전체 여대생들의 $2{\times}2$ 성취목표지향성 가운데 숙달접근이 가장 높은 것으로 나타났으며, 다음으로 수행접근, 숙달회피, 수행회피 순으로 높게 나타났으며, 학년에 따른 동기조절의 경우 1학년의 내재적 가치가 2학년과 3학년의 내재적 가치에 비하여 높았고, 행동조절에 있어서 3학년의 시간과 공부조절, 조력추구는 1학년과 2학년의 시간과 공부조절에 비하여 높은 것으로 나타났다. 다음으로 $2{\times}2$ 성취목표지향성의 하위변인은 자기조절학습의 하위변인과 정적상관관계를 보이는 것으로 나타났는데, 하위변인 가운데 숙달접근은 내재적 가치와 상관관계가 가장 큰 것으로 나타났고, 숙달회피, 수행접근, 수행회피는 외현적 목표지향과 상관관계가 가장 큰 것으로 나타났다. 한편, 자기조절학습의 하위변인 가운데 내재적 가치, 외현적 목표지향, 공부환경조절의 경우 $2{\times}2$ 성취목표지향성의 모든 하위변인과 통계적으로 유의미한 상관관계가 있는 것으로 나타났으며, 자기조절학습의 하위변인은 $2{\times}2$ 성취목표지향성의 하위변인 가운데 숙달접근과 가장 큰 상관관계가 있는 것으로 나타났으며, 숙달접근, 숙달회피, 수행접근, 수행회피가 동기조절의 하위변인에 통계적으로 유의미한 영향을 미치는 것으로 나타났다. 인지조절에 영향을 미치는 요인은 학년과 숙달접근이 인지조절의 하위변인에 유의미한 영향을 미치는 것으로 나타났으며, 행동조절에 영향을 미치는 요인은 학년과 숙달접근이 행동조절의 하위변인에 유의미한 영향을 미치는 것으로 나타났다. 결론적으로, 성취목표지향성과 자기조절 학습의 영향력을 분석함으로써 학생들의 학업목표의 방향을 수정하고 적절한 자기조절학습의 사용을 통해 학습을 효과적으로 할 수 있음을 시사한다. 하지만 본 연구에서는 학업 성취적 요인을 분석대상으로 삼지 않았기 때문에 보다 직접적인 결론을 도출할 수 있는 없었지만 성취목표지향성과 자기조절학습은 서로 상관성이 높기 때문에 성취목표지향성에 따라 자기조절학습이 달라질 수 있으며 두 요인을 잘 고려하면 학습자들의 성취동기를 유발하고 효과적인 학습과정을 유발할 수 있다는 기초자료가 될 수 있으리라 생각된다. 후속연구로 구체적인 학업성취도와의 관련성을 탐색하여 성취목표 지향성의 하위변인과 자기조절학습능력 및 학업성취도의 구체적인 관련성을 연구할 필요가 있다고 생각된다.

• 한국수산과학회지
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• 제37권4호
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• pp.345-353
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• 2004

Target strength (TS) of Japanese common squids (Todarodes pacificus) were measured using 38 and 120 kHz split beam scientific echosounders under the live condition. For the TS measurement of an individual, a total of 3 squids (mantle length (ML): 22.8, 25, and 27 cm) were used using small fishhook method, whereas for measurement of swimming angle, a total of 8 squids (ML: 21-27 cm) were used under live condition, confined with net cage with 2 m diameter At the same time, two underwater video cameras enabled continuous monitoring of squid behavior. Considering normal behavior, the mean TS at 38 and 120 kHz varied from -48.6 to -45.9 dB, and from -46.5 to -44.6 dB, respectively In both frequencies, mean TS at 120 kHz is relatively higher than that of 38 kHz, approximately 1.3-2.5 dB. From free living condition, the mean swimming angle of the squlds was $-24^{\circ}$. The results of the measurement will be provided basic information for conducting acoustic surveys of the squid.

• 대한기계학회논문집A
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• 제41권11호
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• pp.1065-1075
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• 2017

본 연구는 고속충돌에 따른 파괴로 인하여 발생한 파편들의 분산거동을 예측하기 위해 고속충돌 실험과 함께 재료거동 모델링 및 수치해석을 수행하였다. 알루미늄 합금과 강철로 각각 구성된 2종류의 위협체 및 표적판에 대해 충돌실험을 수행하였으며 위협체는 약 1 km/s의 속력으로 표적판과 충돌하고, 이 충돌로 인하여 발생한 파편은 알루미늄 합금 관측판에 손상을 유발시키게 하였다. 사용된 소재의 차이에 의해 파편의 분산거동이 상이하였으며 이에 따라 관측판에 형성된 파편의 분산 반경 또한 다름을 확인하였다. 수치해석은 실험과 동일한 조건하에서 수행되었으며 파편으로 인한 파괴 및 손상을 모사하기 위하여 입자완화 유체동역학(smoothed particle hydrodynamics, SPH)기법과 유한요소(finite element, FE) 연계 기법을 적용하였다. 실험 측정된 결과와 해석값을 비교분석한 바, 표적판의 관통부 지름과 관측판상의 파편 분산반경은 5 % 이내의 오차로 잘 일치하였다. 아울러 강철 위협체와 강철 표적판이 충돌한 경우 가장 큰 분산반경을 보임에 따라 타 경우에 비해 가장 위협적임을 알 수 있었다.

• 한국영어학회지:영어학
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• 제4권1호
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• pp.33-60
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• 2004

This study was an attempt to present an appropriate way of interpreting L2 learners' linguistic behavior within Universal Grammar (UG) framework. Based on the Korean EFL adult learners' performance on the Subjacency violation sentences, the study suggested that the EFL learners are able to acquire subtle knowledge of target grammar and their linguistic behavior should be interpreted with the most recent version of UG theory, the Minimalist Program (MP) notion. The MP notion seems more plausible to accommodate incomplete L2 grammar while acknowledging UG-constrained interlanguage which the previous version, Principles and Parameters (P&P) approach, could not explain very well. The study observed no age-effects among the Korean EFL learners in their linguistic competence measured by the performance on the UG-constraint violation sentences. Having suggested that the MP notion can be a more reasonable tool to explain the EFL learners' linguistic behavior, the study introduced comprehensive hypotheses such as Constructionist Model (CM) and the Ontogeny Phylogeny Model (OPM).

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2003년도 춘계학술대회 논문집
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• pp.1087-1090
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• 2003

In this study, experimental procedures were suggested to investigate the sloshing behavior of a liquid storage tank subjected to inevitably external vibrating conditions. For this purpose. liquid storage tank with rectangular cross section was made of an acrylic resin for the visualization of liquid fluctuation. A specially designed vibrator was used to provide a specified vibrating condition to the liquid storage tank. Extrapolation technique was applied to determine sloshing natural frequency by using various sloshing frequencies at each vibrating displacement and liquid contents at a fixed vibrating frequency. Sloshing mode was also determined from continuous images or liquid fluctuation captured from a video camera. In addition, change in the height of the liquid free surface was measured by using a floating target and a laser displacement sensor. It is found that the suggested method can be applicable to identify the sloshing behavior of liquid storage tank with rectangular cross section.

• 대한가정학회지
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• 제48권4호
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• pp.57-70
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• 2010

I devised a parenting training program in order to help female international marriage immigrants address child behavior problems. The target ethnic group for this study was south-east Asians, in particular Filipino mothers. Two group, each containing 7 mothers, were provided with 8 parenting training sessions. The participants, all with Korean husbands, were already trained in Korean traditional parenting value and positive parenting behavior. To test the effect of this program, pre-, post-, and 6-months follow-up tests were conducted. Resulted showed that the parenting training program improved positive parenting behavior, enhanced parenting self-efficacy, and reduced the children's problem behaviors.

• 한국보건간호학회지
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• 제12권2호
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• pp.172-184
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• 1998

This study was to examine the characteristics of aggressive behaviour of dementia patients. It was based on the observation of the patients in a facility for dementia patients. Observation continued for two days from 9a.m. to 5p.m .. aggressive behavior was recorded using the instrument of Ryden. The result of this study is as follows. 1. appearance rate of aggressive behaviour During two days $74\%$ of the patients did aggressive behaviour(first day-$41.8\%$. second day-$62.8\%$). The average aggressive behaviour per person was 1.65. 2. types of aggressive behaviour Aggressive behaviour was the most frequent in verbal domain(157 case; $52.5\%$). Physical domain was the second$(136case;\;45.5\%)$, and sexual domain was the last$(6 case;\;2.0\%)$. More concretely, abusive/vulgar language$(74case;\;24.7\%)$ was more than anything else. Aggressive language$(65case;\;21.7\%)$, pushing$(39case;\;13.0\%)$, intimidating posture$(21case;\;7.0\%)$. slapping $(18case;\; 6.0\%)$ followed it. 3. correlation to other factors such as sex. age etc. The average aggressive behaviour of female(2.07) was higher than that of male(1.23) (p=.05). Age also had meaningful correlation to the frequency of aggressive behaviour(p=.04). All the other factors-the period of living in facility, the seriousness of dementia. movements in daily life. CAPE, emotional state. the extent of trouble in cognition- have nothing to do with the frequency of aggressive behaviour. 4. the time, place and the target of aggressive behavior Aggressive behaviour appeared more frequently in the afternoon $(138case;\;46.4\%)$ than in the morning or at lunch time. The patient's room ranked the first in the list of places where aggressive behaviour took place $(162case;\; 54.5\%)$. Nursing personnel topped in the target of aggressive behaviour$(119case;\; 39.8\%)$. 5. the preceding causes of the aggressive behavior the most frequent preceding causes of the behavior was the stimulus of another residents $(133case, 44.4\%)$ and that of nsg personnel was few relatively$(65 cases,\; 21.7\%)$. 6. Nursing personnel used verbal reaction most frequently$(40 cases,\; 51\%)$ and in a behavioral reaction they used physical restraint $(12 cases,\; 17.1\%)$ most frequently. In the reactions of nsg personnel. the rate of undesired reaction was high$(41cases,\; 44.28\%)$. and in that of the attacked residents, the usual reaction was most frequent $(80cases,\; 65.0\%)$. In the future it is needed to investigate the characteristics of aggressive behavior of dementia patients, and based on this the method of intervention must be developed. Today the number of dementia patient increases so nurses must strive to encounter aggressive behavior more desirably.

• 국제물리치료학회지
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• 제5권2호
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• pp.772-780
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• 2014

The purpose of this study is to identify the practical knowledge about osteoporosis and health promoting behavior possessed by male and female university students in their twenties. Next, the study seeks to analyze the difference in the degree of knowledge and practice of health promoting behavior depending on the students' area of study (health-related or non-health-related major) and previous education about osteoporosis. A survey was given to 300 male and female university students in Jeju Island from November 18 to December 6, 2013. Regarding knowledge about osteoporosis, the accuracy rate of health science major participants was 16.8 % higher than that of those of non-health science, and the accuracy rate of participants with previous education about osteoporosis was 12.9 % higher than those who had not. Health promoting behavior showed a higher degree of practice among students in health-related majors and those with previous applicable education. There were significant differences between the knowledge of osteoporosis and major and the presence and absence of prior education. Regarding the degree of health promoting behavior and major, the presence or absence of prior education showed significant differences. Among male and female students in their twenties, the recognition of knowledge about osteoporosis is very low. There is a need to develop various programs that focus on osteoporosis prevention rather than treatment, to improve the quality of education and training content according to the individual, and to lower the target age for osteoporosis education.