• 한국콘크리트학회:학술대회논문집
• /
• 한국콘크리트학회 1999년도 학회창립 10주년 기념 1999년도 가을 학술발표회 논문집
• /
• pp.429-432
• /
• 1999

The concrete slab on the foundation may have curling and warping deformations due to moisture and temperature gradient of its section. These deformations may change the support conditions of concrete slabs, and cause higher level of stresses than expected. This study was performed to verify the effect of partial support condition of concrete slab on the foundation due to its deformations and to develop the useful analytic method for describing these phenomenons. The partial support condition verified by FWD test results, and it was concluded that the gap model could be useful in analysing the concrete slab with partial support conditions.

• 한국윤활학회:학술대회논문집
• /
• 한국윤활학회 2001년도 제33회 춘계학술대회 개최
• /
• pp.81-88
• /
• 2001

To study the influence of the shape of contacting bodies (especially the end profile) on slip regime, wear test is conducted in the case of the contact between tube and support. Two different end profiles of the support are used such as truncated wedge and rounded punch. During the test, 10, 30 and 50 N are applied as normal force and slip displacement varies between 10-200 $\mu\textrm{m}$. The tube and the support specimens are made of Zircaloy-4 and a specially designed wear tester is used. Tests are carried out in air at room temperature. Wear on the tube is examined by measuring microscope. Partial and gross slip regimes are classified from the observed wear shape. Surface roughness tester is also used to measure the wear depth and contour, from which wear volume is evaluated. The transition from partial to gross slip is also investigated by investigating the considerable increase of wear volume. From the result, the boundary between the partial and the gross slip is newly determined in the conventional fretting map for the present specific contact configuration. Since the transition is related with the amount of energy dissipation from the contact surface so is wear, it is regarded that wear can be restrained by designing a proper shape of support.

• 대한물리치료과학회지
• /
• 제15권3호
• /
• pp.73-79
• /
• 2008

Background : Treadmill training has been proposed as a useful adjunct to conventional physical therapy to restore ability to walk after stroke. The purpose of this study to inform clinical practise by evaluating the research evidence for the effectiveness of treadmill training after stroke. Methods : We searched to the effectiveness of any form of intervention for effect of treadmill training by Dankook University electronic library databases of Medline, Embase, Cinahl, Amed and PEDro combined with a hand search of papers published in relevant peer-reviewed journals. Any type of study relevant to the topic published in English during time period from 1980 to 2007 was included. Results : The literature search identified 35 studies. The included studies enrolled a total of 374 subjects. 1. Treadmill retraining without partial body weight support might be more effective than no treatment at improving gait velocity, get up and go time, gait endurance and step length symmetry. 2. Treadmill retraining with partial body weight support might be more effective than no treatment in improving step length symmetry, gait velocity, gait endurance and balance. 3. Treadmill retraining might be more effective with partial body weight support than without it at improving gait velocity and motor improvement as measured by The Stroke Rehabilitation Assessment of Movement(STREAM). 4. Treadmill retraining without partial body weight support may be no different from physiotherapy and increase gait velocity to conventional gait therapy. 5. Treadmill retraining with partial body weight support may be no different from physiotherapy for gait velocity, motor recovery and balance. Conclusion The review suggests that although treadmill training of gait, especially with partial body weight support, might Improve gait parameters and functional mobility, unless treadmill training is directed at Improving gait speed it might be no more effective than conventional physical therapy at improving gait parameters.

• 대한수학회지
• /
• 제53권6호
• /
• pp.1211-1223
• /
• 2016

Let M be an n-dimensional $K{\ddot{a}}hler$ manifold with positive holomorphic bisectional curvature and let ${\Omega}{\Subset}M$ be a pseudoconvex domain of order $n-q$, $1{\leq}q{\leq}n$, with $C^2$ smooth boundary. Then, we study the (weighted) $\bar{\partial}$-equation with support conditions in ${\Omega}$ and the closed range property of ${\bar{\partial}}$ on ${\Omega}$. Applications to the ${\bar{\partial}}$-closed extensions from the boundary are given. In particular, for q = 1, we prove that there exists a number ${\ell}_0$ > 0 such that the ${\bar{\partial}}$-Neumann problem and the Bergman projection are regular in the Sobolev space $W^{\ell}({\Omega})$ for ${\ell}$ < ${\ell}_0$.

• 대한수학회논문집
• /
• 제33권2호
• /
• pp.409-421
• /
• 2018

Let X be a complex manifold of dimension n $n{\geqslant}2$ and let ${\Omega}{\Subset}X$ be a weakly q-convex domain with smooth boundary. Assume that E is a holomorphic line bundle over X and $E^{{\otimes}m}$ is the m-times tensor product of E for positive integer m. If there exists a strongly plurisubharmonic function on a neighborhood of $b{\Omega}$, then we solve the ${\bar{\partial}}$-problem with support condition in ${\Omega}$ for forms of type (r, s), $s{\geqslant}q$ with values in $E^{{\otimes}m}$. Moreover, the solvability of the ${\bar{\partial}}_b$-problem on boundaries of weakly q-convex domains with smooth boundary in $K{\ddot{a}}hler$ manifolds are given. Furthermore, we shall establish an extension theorem for the ${\bar{\partial}}_b$-closed forms.

• 대한수학회지
• /
• 제55권1호
• /
• pp.29-42
• /
• 2018

We construct bounded linear integral operators that giving solutions to the ${\bar{\partial}}$-equation in $L^p$-spaces and with compact supports on a q-convex intersection ($q{\geq}1$) with ${\mathcal{C}}^3$ boundary in $K{\ddot{a}}hler$ manifolds, and we apply it to obtain a Hartogs-like extension theorems for ${\bar{\partial}}$-closed forms for some bidegree.

• 한국노년학
• /
• 제29권2호
• /
• pp.441-458
• /
• 2009

본 연구의 목적은 손자녀의 양육을 지원하는 지원 양육조모의 양육 스트레스와 그의 예언변수들을 탐색하고 이를 양육모집단과 비교 분석하는 것이다. 낮시간 동안 아동을 돌보는 할머니 152명(지원 양육조모)과 그 아동의 어머니 152명(부분 양육모), 낮시간 동안 아동을 돌보는 어머니 157명(주 양육모)의 양육스트레스, 우울, 양육행동, 스트레스 대처, 사회적 지지를 비교 분석하였다. 지원 양육조모는 주 양육모와 부분 양육모에 비해 유의하게 우울하였으나 양육 스트레스에서는 집단 간 차이가 나타나지 않았다. 지원 양육조모는 주 양육모보다 사회적 지지와 문제 중심 대처 능력이 뚜렷이 낮아 스트레스에 가용한 자원이 취약함을 시사하였다. 양육스트레스를 설명하는 예언변수로 양육행동(과잉반응성, 방임성), 스트레스 대처(문제 중심 대처 및 정서 중심 대처), 사회적 지지, 우울의 설명량을 위계적 회귀분석을 통해 탐색하였다. 지원 양육조모의 양육 스트레스를 설명하는 변수는 과잉 반응성, 우울이었다. 주 양육모도 과잉반응성과 우울이 양육 스트레스의 유의한 예언 변수였고, 정서 중심 대처도 예언 변수로 나타났다. 한편, 부분 양육모는 사회적 지지, 우울, 과잉 반응성이 양육 스트레스의 유의한 예언 변수로 나타나 낮시간 양육 집단과는 차이를 보였다. 우울이나 자원의 측면에서 조모 집단과 모집단의 차이를 논의하고, 예언 변수를 중심으로 양육 집단과 비양육 집단의 차이, 조모 집단과 모집단 간의 차이에 대해 논의하였다.

• 산업융합연구
• /
• 제20권10호
• /
• pp.147-156
• /
• 2022

본 논문의 연구목적은 청소년의 사회적 지지가 공격성에 미치는 영향과 그 관계에서 그릿의 매개효과를 검증하는데 있다. 이를 위해 2018 아동·청소년 패널(KCYPS)조사 데이터를 사용하였으며, 조사 대상자는 중학교 1학년 2,590명을 선정하여 분석을 진행하였다. 분석 방법은 Baron & Kenny의 회귀분석과 Sobel Test를 실시하였다. 주요 분석결과 첫째, 청소년의 사회적 지지의 하위요인인 부모지지가 공격성에 미치는 영향에서 그릿이 부분매개 효과가 있는 것으로 나타났다. 둘째, 청소년의 사회적 지지의 하위요인인 친구지지가 공격성에 미치는 영향에서 그릿이 부분매개 효과가 있는 것으로 나타났다. 셋째, 청소년의 사회적 지지의 하위요인인 교사지지가 공격성에 미치는 영향에서 그릿이 부분매개 효과가 있는 것으로 나타났다. 이상의 연구결과를 토대로 청소년의 공격성을 낮추고 그릿을 향상시킬 수 있는 다양한 프로그램 개발과 정책적 대안을 제시하였다.

• Korean Journal of Mathematics
• /
• 제24권2호
• /
• pp.169-179
• /
• 2016

In this article, we introduce the concept of ordered dualistic partial metric spaces and establish an order relation on quasi dualistic partial metric spaces. Later on, using this order relation, we prove xed point theorems for single and multivalued mappings. We support our results with some illustrative examples.

• The Journal of Advanced Prosthodontics
• /
• 제4권1호
• /
• pp.57-59
• /
• 2012

The scars and contracture around the oral-facial region may cause difficulty in prosthodontic treatment to restore esthetics and function for the patients, who suffered severe burns. This article presents a technique that uses a fixed partial denture prepared with a conventional milling technique and an attachment to support anterior cantilever removable partial denture, thereby providing a more esthetically acceptable and functional result.