• Proceedings of the Zoological Society Korea Conference
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• 1994.10a
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• pp.79.2-79
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• 1994

No Abstract, See Full Text

• Korean Journal of Computational Design and Engineering
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• v.10 no.1
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• pp.17-26
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• 2005

In-line skate generally consists of four major parts: boot, frame, bearing and wheel, and the most important part among those for necessary functionality is the frame. It is the most expensive, and it also makes a decisive role in practical race skating. The functional behavior of a frame is greatly affected by external dynamic forces as well as the static weight of a skater. We are proposing a new inline speed-skating frame design that has been improved in structural strength and weight for providing optimum speed in $20\sim40km$ marathon skating.

• Journal of the Korean Applied Science and Technology
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• v.35 no.4
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• pp.1472-1479
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• 2018

The purpose of this study was to investigate the ability to maintain dynamic posturography(EquiTest) in gymnastic, freestyle skier, and figure skater. A total of 32 subjects(22 athletic woman and 10 collegiate woman) were participated in this study. Computerized dynamic posturography(EquiTest) was adopted to test sensory organization and motor control. EquiTest facilitated the quantification of the role of somatosensory, visual and vestibular systems in the maintenance of postural balance and was also pertinent to measure the reaction time to the stimulus to change center of gravity on force platform. As a result were as follow. There was not difference among with exercise group. But there was a significantly difference with between groups. It was suggested that the acrobatic and physical activity developed the function of visual system and the role of the combination of visual and vestibular system in maintaining postural balance to surrounding stimulus, and presented shorter reaction time in automatic postural response.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2003.11a
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• pp.549-555
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• 2003

The technology of machine condition monitoring is used effectively to detect the machine faults at an early stage using different machine quantities, such as current, voltage, temperature and vibration. Induction motors are most widely used to drive pumps, compressors and fans in industrial drives. This paper presents approach to data fusion using Dempster-Shafer theory because only one technique has uncertainty. So we can obtain advanced accuracy of the machine fault diagnosis. Vibration and current quantities are applied to diagnose three-phase induction motor.

• The Journal of the Korea Contents Association
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• v.8 no.10
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• pp.251-258
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• 2008

This study was to investigate the effects of the combined patterns of PNF(proprioceptive neuromuscular facilitation) on the static balance ability by 20 subjects for 6 weeks. The combined patterns of PNF were carried out by Sprinter and Skater suggested by Dietz which were practiced once a day, 3 times a week. This study were measured normal standing, one leg left and one leg right standing when eye open and close on GOOD BALANCE system. These result lead us to the conclusion that mean velocity of X,Y direction, COP velocity moment were showed a statically decrease applying post-exercise on Normal Standing Eye Open(NSEO), Normal Standing Eye Close(NSEC), One Leg Right Standing Eye Close(OLRSEC) and Just velocity of X direction were showed a statically decrease applying post-exercise on One Leg Right Standing Eye Close(OLRSEC). The above results from this study indicated that combined patterns of PNF have improved the static balance ability. However the used self-exercise ca be applied to normal people, i.e., the exercise is difficult to apply into clinical patients. The further study should be focused at development of various modified forms of the combined patterns of PNF in keeping up the improvement effect of the exercise.

• Journal of the Korean earth science society
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• v.33 no.2
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• pp.170-182
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• 2012

The purpose of this study was to develop learning materials based on the Kepler's abductive reasoning and to identify high school students' rule-inferring strategies on the law of planetary motion. The learning materials including the concepts of solar magnetic field, conservation of figure skater's angular momentum and Kepler's polyhedral theory were developed and the questions about Kepler's 2nd and 3rd law of planetary motion were also created. The participants were 79science high school students and 83general high school students. The patterns and properties of their abductive inference were analyzed. The findings revealed that the students showed 'incomplete analogy abduction', 'analogy abduction' and 'reconstruction' to generate the hypotheses concerning the Mars' motion related to the solar magnetic field. There were more general high school students who showed the incomplete analogy abduction than science high school students. On the other hand, there were more science high school students who showed the analogy abduction and reconstruction strategy than general high school students. Also, they showed 'incomplete analogy abduction', 'analogy abduction' and 'model construction and manipulation' to generate the hypotheses concerning Kepler's second law. A number of general high school students showed the incomplete analogy. It is suggested that because the analogy of figure skater cause the students' alternative framework to use, more detailed demonstration is necessary in class. In addition, students combined Kepler's polyhedral theory with their prior knowledge to infer Kepler's third law.

• Journal of Digital Convergence
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• v.12 no.12
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• pp.507-512
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• 2014

Because it is impossible to form a culture. To correctly read the code unless the consumer is considering skater that can be shared in the emotion of the characters and the consumer culture that supply. May be possible to force the active dissemination of education shall ceramic crafts culture. We need the ceramics craft culture in this sense also once again confirmed the importance of education and redevelopment. The workshop enabled to the Ceramic Study presented based on the importance of education in workshop operations Activation is required in order to plan the education and above all a culture of catheter positioned in the area of contemporary craft. Such as teaching methods and ways to activate.

• Journal of the Korean Society of Physical Medicine
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• v.12 no.4
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• pp.47-59
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• 2017

PURPOSE: This study was to identify the effect of a coordinative locomotor training (CLT) programs on lower extremity strength, balance, and quality of life of a cancer patients. METHODS: Subjects were instructed in CLT programs. The CLT programs consisted of sprinter and skater pattern movements performed for 30 minute three day per week for two weeks. CLT programs performed the arms and legs alternately and step up the steps on the stairs. The timed sit to stand test (TSTS) and one leg standing test (OLST) were used to test lower extremity strength. The star excursion balance test (SEBT) was used to measure balance; and the functional assessment of cancer therapy - general (FACT-G) for measuring the quality of life throughout the sessions. RESULTS: Participants showed enhanced strength compared to first baseline, as measured by TSTS (14.58%). Balance was improved compared to the first baseline as measure by OLST with open eyes (30.3%), OLST with closed eyes (114.81%), SEBT (43.76%). The increase of strength and balance were maintained in a second baseline session. There was no change for quality of life between first baseline and intervention period. CONCLUSION: These findings indicate that the CLT program is a useful exercise program that can help improve the physical activity of cancer patients who have a reluctance to move by positively affecting cancer patients' balance and leg strength.

• Journal of Digital Convergence
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• v.11 no.4
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• pp.361-368
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• 2013

The aim of this study was to identify influence that integrated PNF(IPNF) on sprinter and skater pattern exercise had an effect on static and dynamic balance in chronic low back pain elderly adult. The subjects of this study were 34 and they were divided into two groups: IPNF exercise group(n=17), swiss ball exercise group(n=17). They were measured static balance ability using Good Balance System (GBS) and dynamic balance ability using functional reaching test(FRT) and timed up and go (TUG) during pre and post exercise. The results of this study were significant differences in groups about pre and post static and dynamic balance tests the greater part(p<.05). There were significant differences in groups according to exercises(p<.05). The above results from this study indicated that integrated patterns of PNF have improved the static and dynamic balance ability. This study will be enough to provide the basic raw material using a integrated PNF.

• PNF and Movement
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• v.14 no.2
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• pp.67-74
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• 2016

Purpose: The purpose of this study was to prove the effects of coordinative locomotion training (CLT) on walking speed, walking endurance, and balance for incomplete spinal cord injury patients. Methods: Ten subjects were randomly assigned to the CLT group (n = 5) and the treadmill (TM) group (n = 5). The CLT group performed PNF pattern exercise using the motions of the sprinter and skater for 30 minutes, while the TM group performed using a treadmill for 30 minutes. Both groups performed these therapeutic interventions for five days per week, for a period of four weeks. A 10 meter walking test, Berg Balance Scale (BBS), and 6 meter walking test were used for the assessment of gait speed, balance, and gait endurance. The SPSS Ver. 18.0 statistical program was used for data processing. A Wilcoxon signed rank test was used for the comparison of pre- and post-intervention performance and a Mann-Whitney test was used for comparison between the groups. The significance level for the statistical inspection was set at 0.05. Results: Both groups showed significant improvements in the 10 meter walking test, Berg Balance Scale, and 6 meter walking test (P < 0.05). Conclusion: CLT had an effect on the improvement of walking speed, walking endurance, and the balance of incomplete spinal cord injury patients. Thus, we suggest that CLT is a therapeutic intervention for incomplete spinal cord injury patients.