• Proceedings of the Korean Society of Crop Science Conference
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• 1998.04a
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• pp.61-62
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• 1998

• Journal of Technologic Dentistry
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• v.2 no.1
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• pp.11-15
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• 1980

This study was aimed at obtaining an ideal gold alloy for dental prothetic. The experiment was on physical characteristics of gold alloy and mixing proportion for proper appliance to living tissues. The most frequently used material in the past for dental prothetic was gold, but recently used are mictures or precious metals and non-precious, which are proved to affect on oral tissues. The experiment was to examine gold alloy over its physical and chemical qualities and to make an ideal type of gold alloy by means of statistic and laboratory research.

• The Bulletin of The Korean Astronomical Society
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• v.32 no.2
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• pp.64.1-64.1
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• 2007

• The Bulletin of The Korean Astronomical Society
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• v.32 no.2
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• pp.24.2-24.2
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• 2007

• Physical Therapy Korea
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• v.19 no.2
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• pp.39-47
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• 2012

The purpose of this study is to examine the influence of a horse riding simulator and galvanic vestibular stimulation on improving the ability to balance posture and proprioception. Thirty healthy adults participated and were randomly assigned to a horse riding simulator group ($n_1$=10), galvanic vestibular stimulation (GVS) group ($n_2$=10), control group ($n_3$=10). Experiment groups were trained 3 times per week over 6 weeks. The ability to balance posture was measured by force plate and proprioception was measured by Joint position sense. The following results were obtained. the changes of balance index were significant interaction in each group in accordance with the experiment time in 0, 3 and 6 weeks (p<.05). All groups showed the most decreasing pattern compared with the control group. But was not statistically significant. Proprioception was significant interaction in each group in accordance with the experiment time (p<.05). All groups showed the most decreasing pattern compared with the control group. The above results indicated that the 6 weeks horse riding simulator and galvanic vestibular stimulation training demonstrated positive effects in the ability to balance posture and proprioception. These results suggest that the horse riding simulator and galvanic vestibular stimulation training could be therapeutic intervention that can improve balance and postural control.

• Journal of the Korean Society of Physical Medicine
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• v.8 no.4
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• pp.505-512
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• 2013

PURPOSE: The purpose of this study applied computerized cognitive therapy and proprioception exercise to stroke patients and analyzed improvement in their changes in Electrocephalogram(EEG). METHODS: The subjects were 30 patients who were diagnosed with stroke and they were randomly selected to a proprioceptive training group(n=15), a cognitive training group(n=15). The experiment was performed for three times per week for 6 weeks and EEG was measured before and after the experiment. RESULT: Before and after the experiment in each group of experiments, the ${\alpha}$-and ${\beta}$-wave study showed significant changes but, there was no significant difference in the change between groups before and after the experiment. CONCLUSION: From the above results, the cognitive training and the proprioception training have a positive impact in stroke patients EEG changes, but it is difficult to suggest a better therapeutic interventions. However, as compared with that the cognitive training that directly involved in the cognitive and brain activation, the proprioception training have changes on brain activation. Therefore, of Clinical therapeutic interventions, the proprioception training can be presented effectively to the changes in brain activation in stroke patients.

• Journal of Korean Physical Therapy Science
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• v.8 no.2
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• pp.989-995
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• 2001

The purpose of this paper was to enable patients, who suffer from muscle damage. to return to their normal activities as soon as possible. With this in mind. this experiment was carried out to make an analysis of a variety of ingredients subjected to changes when muscle damage or muscle soreness was treated with aceclofenac, NSAID, and to find out what effect the anti-inflammation produced in relation to such symptoms. It made use of male rats (Sprague-Dawely) as subjects. It carried out two kinds of experiments: one was a preliminary experiment from March 15, 2001 to March 20, 2001 and the other was a main experiment from March 30, 2001 to April 15, 2001. Each group was composed of five rats. In case of DOMS. it worked with eight male adults from April 20. 2001 to April 30, 2001. It have come up with the following conclusions: 1. The leucocytes and erythrocytes of the experiment group were decreasing with the lapse of time in comparison with those of the contrast group. And a decrease in the number of hemoglobin had remarkably statistic significance (P<0.05). 2. Neutrophil, Lymphocyte and Monocyte decreased in 36, 24, 12 and 24 hours, respectively, which means that they had a significant difference(P<0.05). 3. CPK and LDH were reduced remarkably through the whole time slot in comparison with the contrast group, and had statistic significance(P<0.05). The findings above show that anti-inflammations cure bruises or damage or myalgia in a shorter period of time than the normal recovery of other treatment.

• Journal of the Korean Society of Physical Medicine
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• v.18 no.2
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• pp.115-123
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• 2023

PURPOSE: This study examined the effects of combined conventional exercise therapy plus respiratory exercise program with combined conventional exercise therapy plus aqua exercise program in the pulmonary function of subacute stroke patients. METHODS: The respiratory exercise program group underwent inspiration and expiration training using the Threshold IMT and Threshold PEP three days per week for four weeks. The aquatic exercise program group had aquatic aerobics, halliwick, and bad ragaz ring training three days per week for four weeks. Before and after the experiment, Pony fx was used to examine the FVC, FEV1, FEV1/FVC, VC, and MVV. RESULTS: Significant improvement was found after the experiment in the FVC. FEV1, VC, MVV, excepting FEV1/FVC, of the pulmonary function in the aquatic exercise program group. After the experiment, significant improvement was found in FVC, FEV1, FEV1/FVC, VC, and MVV of pulmonary function in the respiratory rehabilitation therapy group. No significant difference in FVC, FEV1, FEV1/FVC, VC, and MVV of pulmonary function was observed in the inter-group comparison. CONCLUSION: Significant improvement was found after the experiment in both the aquatic exercise program group and the respiratory exercise program group. No difference in pulmonary function was noted in the inter-group comparison. Therefore, combining general exercise therapy and an aquatic or respiratory exercise program is expected to be effective for the pulmonary function of acute stroke patients. These results are expected to provide basic data to help research intervention of aquatic and respiratory exercise programs for subacute stroke patients.

• The Journal of the Korea Contents Association
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• v.22 no.6
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• pp.69-77
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• 2022

Physical experiment through MBL has been used in many schools for a long time since students can check the experiment results immediately and conduct the experiment easily. However, conducting the experiment, not knowing the principle of the device or simply concentrating on the derived data has been raised as the problem of MBL experiment. To supplement this problem, this study measured the acceleration of gravity with the picket fence method, which is often used in MBL experiment, utilizing Arduino, calculated the error rate through a comparison to the actual acceleration of gravity and discussed the educational application of the experiment to measure it. As a result of the experiment, the error rate between the acceleration of gravity calculated by the experiment and the actual acceleration of gravity was about 1%, so it turned out that relatively accurate measurements were possible. Also, the sample mean of the experimental value was included in the confidence interval of 95%, so it could be concluded that it was a significant experiment. In addition, this study showed the possibility of the educational application of the experiment to measure it through the following: It can supplement the structural disadvantages of MBL; it can consider the interaction between Physics and Math; it is possible to converge with information course in STEAM education; and it is inexpensive to be equipped with the equipment. Hopefully, the physical experiment utilizing Arduino will further be revitalized in science gifted education based on this study.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.17 no.4
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• pp.1-7
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• 2003

This is basic study for analyzing the character of the evaluation according to the ways of exterior lighting through the image prediction experiment by computer simulation. The aim of this research is to verify the validity of physical quantity & subjective evaluation on the basis of Online experiment. The following carried out the experiment procedure by conditions of Online experiment, 1) to make a photo of Online experirrent, 2) to measure physical quantity of luminance, and 3) to do subjective evaluation in Online experiment by means of vocabulary of the evaluation through preparation experiment. Then to verify the validity of Online and CG experiment, Online and photo experiment with each subjective evaluation results. The result of this study is that the validity difference is within 5% in the verification the validity of the physic amount, which showed little difference. While in verification of subjective evaluation of online and CG, online and photo experiment, the result is showed little difference as well except a little the item.