• Proceedings of the Korea Concrete Institute Conference
• /
• 1999.10a
• /
• 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.

• Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
• /
• 2001.06a
• /
• 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.

• Journal of Korean Physical Therapy Science
• /
• v.15 no.3
• /
• 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.

• Journal of the Korean Mathematical Society
• /
• v.53 no.6
• /
• 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 ${\ell}$ < ${\ell}_0$.

• Communications of the Korean Mathematical Society
• /
• v.33 no.2
• /
• 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.

• Journal of the Korean Mathematical Society
• /
• v.55 no.1
• /
• 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
• /
• v.29 no.2
• /
• pp.441-458
• /
• 2009

The present study compared the differences in mechanisms of caregiving stress, depression, parenting behaviors, stress-coping, and social support between caregiving grandmothers and the caregiving mothers. Three caregiving groups were compared; One hundred and fifty-two grandmothers rearing their grandchild as daytime care-giver (partial caregiving-grandmother group), 152 mothers who shared the responsibilities of caregiving the same child (partial caregiving-mother group), and another 157 mothers who rear their child as daytime care-giver (primary caregiving-mother group). Predictors of parental stress for these caregiving groups were also assessed. The results indicated that partial caregiving-grandmother group had more depressed than two mother groups, but there were no differences in parental stress among three caregiving groups. In addition, primary caregiving-mothers used more problem-focused coping strategies, and more social support than did partial caregiving-grandmothers. In parental behaviors, partial caregiving-grandmothers significantly had more laxness, less overactive than two mother groups. In the analysis of hierarchical regression, overactivity and depression were significant predictors of parental stress in partial caregiving-grandmothers. On the other hand, depression, social support, and overactivity were significant predictors of parental stress in partial caregiving-mothers. In primary caregiving-mothers, overactivity, depression, and emotion-focused coping were significant predictors of parental stress. We discussed the differences of the predictors in parental stress between grandmothers and mothers.

• Journal of Industrial Convergence
• /
• v.20 no.10
• /
• pp.147-156
• /
• 2022

The purpose of this paper was to verify the mediated effect of grit in the relationship with the effect of youth social support on aggression. To this end, data from the 2018 Children and Youth Panel (KCYPS) survey were used, and 2,590 first-year middle school students were selected and analyzed. As for the analysis method, Baron & Kenny's regression analysis and Sobel Test were performed. As a result of the main analysis, first, it was found that grit had a partial mediating effect in the effect of parental support, a sub-factor of social support of adolescents, on aggression. Second, it was found that grit had a partial mediating effect in the effect of friend support, a sub-factor of social support of adolescents, on aggression. Third, it was found that grit had a partial mediating effect in the effect of teacher support, a sub-factor of social support of adolescents, on aggression. Based on the above research results, various program development and policy alternatives that can reduce youth aggression and improve grit were suggested.

• Korean Journal of Mathematics
• /
• v.24 no.2
• /
• 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
• /
• v.4 no.1
• /
• 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.