• Korean Journal of Applied Biomechanics
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• v.26 no.4
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• pp.377-382
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• 2016

Objective: The purpose of this study was to provide data on gait characteristics of K-pop professional dancers. Method: Participants were divided into four groups: male dancers (n=10, age: $28.2{\pm}3.4years$, height: $175{\pm}6cm$, weight: $68.9{\pm}5.6kg$), female dancers (n=10, age: $26.7{\pm}3.1years$, height: $162{\pm}4cm$, weight: $52.1{\pm}3.7kg$), non-dancer males (n=10, age: $25.2{\pm}2.6years$, height: $171{\pm}6cm$, weight: $66.4{\pm}5.3kg$), or non-dancer females (n=10, age: $26.2{\pm}3.0years$, height: $161{\pm}5cm$, weight: $56.4{\pm}6.7kg$). Twelve infrared cameras (Qualisys, Oqus 500, Sweden, 150 Hz.) were used to capture three-dimensional motion data. Gait motion data of professional dancers and ordinary persons were obtained. Results: K-pop dancers' dynamic stability during the female toe off event and the male heel contact event was better compared with that of ordinary persons in the front-rear direction. In addition, the results showed a significant difference in the margin of stability (MoS). However, the medial-lateral direction of both female and male dancers during heel contact and the toe off event was more stable compared with ordinary person, who exhibited an increased MoS than did the dancers. Conclusion: This study aimed to investigate the gait characteristics of K-pop professional dancers in comparison with ordinary persons using gait parameters and MoS. The stability of K-pop professional dancers' dynamic gait in the front-rear direction was better than that in the medial-lateral direction. Therefore, further studies in which the dance movements of K-pop dancers are sub-divided and analyzed will be necessary to reduce related injury.

• Proceedings of the Korea Concrete Institute Conference
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• 1993.10a
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• pp.132-137
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• 1993

The purpose of this study is to evaluate the quality characteristics of concrete using super plasticizer which is on the market within the country. For this purpose, nine kinds of super plasticizer are compared and analyzed for the slump , air content, unit weight, water-reducing percent and ratios of compressive strength with admixture content. As a result, the optimum quantity of admixture content were obtaining for ordinary and high strength concrete using super plasticizer.

• 한국IT서비스학회:학술대회논문집
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• 2009.11a
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• pp.453-458
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• 2009

The purpose of this study was to detect early children with hyperactivity which is one of the symptoms of Attention Deficit - Hyperactivity Disorder (:ADHD). For this Purpose, This study used two methods; K-CBCL and observation of children`s behavior. K-CBCL was done online by parents at home. For observation of children's behavior, the school asked children to wear a 3 - axis accelerometer on their wrists. The data from K - CBCL and 3 - axis accelerometer were analyzed and clustered to separate hypersensitive children from ordinary children.

• Journal of Families and Better Life
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• v.23 no.4 s.76
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• pp.113-122
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• 2005

The purpose of this study is to examine the work-family conflict and work-family spillover of married working women. For this purpose, this study estimate the level of work-family conflict and spillover and investigate the related variables to then The results are as follows. The level of work-family conflict is ordinary. The level of role conflict as mother is highest and that of role conflict as wife is lowest. The level of work-family spillover is also ordinary and positive work-family spillover and family-work spillover are higher than negative ones. Work-family conflict of married working women have a significant difference according to woman's age, age of first child, number of children, household work time, career years, and support of family. Negative family-work spillover have similar trend with wok-family conflict in affecting variables. This study is meaningful in analyse the work-family spillover of married working women as well as work-family conflict to reveal the positive aspect with negative aspect of work-family. It is needed to eliminate the conditions which cause conflict to married working women and emphasize the positive effect of work-family.

• Journal of the Korean Institute of Educational Facilities
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• v.1 no.1
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• pp.21-32
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• 1994

It is time to put our top priority on the computer education to cope with rapid chage in technology and expansion of information. With 6th educational reform plan, from 1995 computer courses will be offered as elective subjects in the most of middle schools. However, detail planning for training of computer courses will be offered as elective subjects in the most of middle schools. However, detail planning for training of computer teachers and providing facilicles for computer education hasn't been adequately prepared yet, This will bring about confusion in computer education. The purpose of this study is to propose how to renovate the ordinary classroom into computer classroom. Followings are the suggestions for the educational specification for the renovated computer classroom for middle school in the urban area. 1) Purpose of computer classroom, 2) Size of computer classroom, 3) Curriculum design and class hour, 4) Facilities, 5) Environments, 6) Equipment and media(lighting and electric system, acoustical treatment, cooling/heating and ventilation system), 7) Activity area(Teacher workstation, Student workstation, Support area, Display surface). For the promotion of computer education, the legal, financial and administrative supports by concerned authorities should be established ahead of discussing the contents of computer education.

• Journal of muscle and joint health
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• v.16 no.2
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• pp.125-134
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• 2009

Purpose: The purpose of the study was to compare the effects of the Rhy-Kwon exercise with motion beat music program to the Rhy-Kwon with ordinary beat music program on physical fitness and mood in employed women. Method: Total of 29 women who did not have any particular disease were randomly assigned either to a Rhy-Kwon with motion beat music group or to a Rhy-Kwon with ordinary beat music group. Nine subjects in each group completed posttest measures (physical fitness and mood) in 8 weeks. Results: After the 8 weeks of the study period, there were significant improvement in sargent jump and mood especially for the subscale of vigor in the Rhy-Kwon with motion beat music group compared to their counterparts. But no significant differences were found between the groups in other physical fitness measures. Conclusion: The results showed that Rhy-Kwon with motion beat music program would partially improve physical fitness and mood (vigor). Further studies are needed to confirm the effects of Rhy-Kwon with motion beat music program with various populations.

• The Journal of Information Technology
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• v.8 no.1
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• pp.83-93
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• 2005

This paper again to present position of a bus that is running in bus government organization small grasp and Can instruct control about the vehicles progress speed in government organization small to bus driver. Therefore, Inform a bus that own wants to ordinary people who carry transfer communication terminal is situated to where present, ad Do by purpose that offer system that inform running information of a bus to ARS and FAX, internet and ordinary people through PC communication. Also, Intelligence style bus control system that see also includes function that do as can guide arrival expectation depot automatically without driver's manufacturing when run a bus.

• Journal of Industrial Technology
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• v.21 no.B
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• pp.301-306
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• 2001

Drying shrinkage cracking which may be caused by the relatively large specific surface is a matter of grave concern for latex modified concrete(LMC) overlay and rapid-setting cement latex modified concrete(RSLMC) overlay. Therefore, the purpose of this dissertation was to study the drying shrinkage properties of LMC and RSLMC with the main experimental variables such as cement types(ordinary portland cement, rapid setting cement), latex contents(0, 5, 10, 15, 20%), W-C ratios, and curing days at a same controlled environment of 60% of relative humidity and $20^{\circ}C$ of temperature. Test results revealed that the drying shrinkage of latex modified concrete(LMC), rapid-setting cement latex modified concrete(RSLMC) was considerably lower than that of ordinary portland cement concrete(OPC), rapid-setting cement concrete(RSC), respectively. This may be attributed to the interlocking of hydrated cement and aggregates by a film of latex particles, water retention due to hydrophobic and colloidal properties of the latexes, resulting in reduced water evaporation.

• Korean Journal of Human Ecology
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• v.16 no.1
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• pp.17-26
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• 2007

The purpose of this study was to compare parenting stress between mothers who have young children with and without disabilities. The subjects of this study were 100 mothers who take care of disabled children and 123 mothers who take care of non-disabled children. The children's ages were from 3 to 6 years. The results of this study were as follows; First, the mothers who have disabled children have more parenting stress than those who have ordinary children. Second, the mothers who have developmentally disabled children had more parenting stress than mothers who had other disabled children. Children's and mothers' ages had an influence on the parenting stress of the ordinary mothers. The mothers who had children with and without disabilities got less parenting stress as the mothers received more higher parenting efficacy, parent role satisfaction, marital satisfaction and family support.

• Proceedings of the Korea Concrete Institute Conference
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• 2003.05a
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• pp.799-804
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• 2003

The purpose of this study was to investigate the effects of re-vibration and curing temperature onto the physical properties of latex-modified concrete with ordinary cement and rapid-setting cement, and thus to provide a guide line of re-vibration and curing conditions for good quality controls. The main experimental variables included two cement types(ordinary portland cement, rapid-setting cement), curing Temperature($10^{\circ}C$, $20^{\circ}C$, $30^{\circ}C$), re-vibration methods(continued, intermittent), and re-vibration times(initial setting, one day after mixing). The experimental results showed that the re-vibration affected little to the mechanical properties of LMC and RSLMC, while, the curing temperature a quite some. The early strength development was the highest at $20^{\circ}C$ curing temperature, and decreased at higher temperature. The permeability of concrete generally decreased with curing time. The rapid chloride permeability was a function of time and temperature. The chloride permeability of RSLMC was so small and negligible.