• 한국전산유체공학회:학술대회논문집
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• 2004.03a
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• pp.196-201
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• 2004

Aerodynamic characteristics of three-dimensional wings in ground effect for Aero-levitation Electric Vehicle(AEV) are numerically investigated for various ground clearances and wing spans at the Reynolds number of $2\times10^6$. Numerical results show that a sizeable three-dimensional flow separation occurs with formation of an arch vortex at the junction of main and vertical wings, and that this is conjectured a primary cause for the high lift-to-drag(L/D) reduction rate of the main wing, when the wing span is decreased. Improvements on L/D ratios of the wings with small spans are pursued by breaking the coherence of superimposed adverse pressure gradients at the wing junction.

• Journal of Korean Physical Therapy Science
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• v.4 no.2
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• pp.453-460
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• 1997

This paper reports treatment effect by Thera-Band for two cases of Frozen shoulder. The purpose of study was to introduce treatment effect by Thera-Band for frozen shoulder. Case 1 Total amount of an increase of range of motion of shoulder joint were about 55 degrees in flexion, 60 degrees in abduction and 50 degrees in external rotation and the majority of those improvements were accomplished during three weeks of treatment by Thera-Band. Case 2 Range of motion of shoulder joint were accomplished Normal Range of Motion during one week of treatment by Thera-Band.

• Journal of Korean Institute of Industrial Engineers
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• v.23 no.1
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• pp.77-94
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• 1997

Reengineering, also known as a business process redesign, involves a fundamental rethinking, and often a radical redesign, of an entire business process or a set of process to achieve dramatic improvements. The central paradox of reengineering is that its own advantages constitute the greatest threat to its success. For reengineering to be the right choice, the organization must have real capacities to embrace changes across the board. The key is to begin with, and to preserve, a vision of the new order, which drives this structured approach, and is in turn calibrated by that approach. However, in most cases of these calibrations, the empirical evidences on the effect of determinants in the reengineering are required. Seemingly, the research results in this area are scarcely verified. This article tried to search the effect of four dimensions of the reengineering toward the performance of reengineering. The results showed that the factors of the organization behavior and of the methodology/operation had more affected on the performance.

• 한국전산유체공학회:학술대회논문집
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• 2005.04a
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• pp.57-64
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• 2005

Aerodynamic characteristics of three-dimensional wings in ground effect for Aero-levitation Electric Vehicle(AEV) are numerically investigated for various fairing shapes at the junctions of 3D Wings. Numerical results show that a sizeable three-dimensional comer flow separation occurs with formation of an arch vortex at the junction of main and vertical wings, and also that this is predicted the main cause of the high lift-to-drag(L/D) reduction rate of the main wing. To avoid the comer flow separation, the main idea of this study is to reduce the cross section gradient of the comer flow tube near the trailing edge for various fairing shapes. Improvements on L/D ratios of the wings are pursued by breaking the coherence of superimposed adverse pressure gradients at the wing junction when the cross section gradient is changed slowly at the trailing edge.

• Journal of the Korea Safety Management & Science
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• v.19 no.1
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• pp.145-156
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• 2017

This study was conducted to grasp problems of the present and investigate the real condition of organizations by making how an organizational ISO/TS 16949 quality management system has a positive effect on process improvement, perceived organizational support has a significant effect on the relationship between ISO/TS 16949 requirements and process improvement, process improvement has a positive effect on customer satisfaction and organizational performance research projects. For doing them, it tris to suggest an effective application plan of ISO/TS 16949 certification through improvements about corporate quality management systems of the automobile field by investigating and analyzing literature of the precedent studies and ISO/TS 16949 certification effects actually, conducting and analyzing an survey on effects on customer satisfaction and organizational performance, and drawing the problems.

• Medical Lasers
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• v.9 no.2
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• pp.119-125
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• 2020

Photobiomodulation forms the basis of photomedicine and is defined as the effect of coherent or non-coherent light sources, such as low-level lasers and light-emitting diodes, on cells and tissues. This treatment technique affects cell functions, proliferation, and migration, and plays an important role in tissue regeneration. Mesenchymal stem cells (MSCs) are known to be beneficial for tissue regeneration, and the combination of stem cell therapy and laser therapy appears to positively affect treatment outcomes. In general, a low-power laser has a positive effect on MSCs, thereby facilitating improvements in different disease models. This study elucidates the mechanisms and effects of low-power laser irradiation on the proliferation, migration, and differentiation of various MSCs that have been examined in different studies.

• Journal of Advanced Marine Engineering and Technology
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• v.39 no.6
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• pp.599-603
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• 2015

To strengthen the existing regulations with respect to carbon emissions in the marine industry, there has been an increase in the number of studies focusing on realizing improvements in the utilization of vessels. While the development of new techniques related to these improvements can be costly, in this paper, we discuss a cost-effective method that may be applied directly to existing ships. The experimental data obtained suggests that the greatest reduction in energy loses can be realized by installing a double-partition wall on the storage tank of the ship, among other methods.

• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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• v.21 no.2
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• pp.7-14
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• 2015

Purpose: The purpose of this study was to investigate the effects of falls prevention exercise program to balance, falls efficacy, blood pressure and blood lipids in the elderly females. Methods: A total of twenty-six elderly women participated in this study. All subjects participated in exercise program based on pelvic stabilization and balance training on two times a week for twelve weeks. They were measured about Berg balance scale (BBS), Time up and go (TUG), Functional reach test (FRT), Sit to stand (STS) for balance, falls efficacy scale-international (FES-I) for falls efficacy, systolic blood pressure (SBp), diastolic pressure (DSp) for blood pressure, and total cholesterol (TC), triglyseride (TG), high density lipoprotein cholesterol (HDL-C), low density lipoprotein cholesterol (LDL-C) for blood lipids. Results: There were significant improvements of BBS (p<.05), TUG (p<.001) FRT (p<.01), and STS (p<.001) in the balance after exercise program. There was significant improvements in FES-I (p<.001) in the falls efficacy, There were no statistical differences of SBp and DSp in the blood pressure. There were no statistical differences of TC, TG, HDL-C, and LDL-C in the blood lipids. Conclusions: Falls prevention exercise program was meaningful increasing balance ability and falls efficacy.

• The Journal of Korean Physical Therapy
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• v.28 no.5
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• pp.279-285
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• 2016

Purpose: This study was conducted to investigate the effects of joint mobilization and kinesio taping on pain, range of motion and knee function in patients with knee osteoarthritis. Methods: Thirty subjects were selected and divided into three groups: group 1 was treated with joint mobilization, group 2 was treated with kinesio taping and group 3 was treated with joint mobilization and kinesio taping. Joint mobilization was performed for 20 minutes three times a week for a period of 4 weeks, after which tape was applied for the same period of time and it was not exceeded 24 hours. Pain, range of motion and knee function were then assessed to identify the effectiveness. A visual analog scale (VAS) was used for pain assessment, while active and passive range of motion (AROM, PROM) were assessed using smart phones application, and knee injury and osteoarthritis outcome score (KOOS) was used to assess knee function. Results: After intervention, the joint mobilization group and kinesio taping group showed significant improvements in VAS, AROM, PROM and KOOS (Symptom, Pain, ADL, QOL), whereas no significant difference was found in sport/recreation. The joint mobilization with kinesio taping group showed significant improvements in all items, and a significant increase was found in AROM and PROM compared to the other two groups. Conclusion: We found that joint mobilization and kinesio taping effectively improved pain, range of motion and knee function in patients with knee osteoarthritis, but that application of joint mobilization with kinesio taping was most effective.

• Journal of the Korean Society of Physical Medicine
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• v.7 no.1
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• pp.37-47
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• 2012

Purpose : The purpose of this study is to examine the effects of training in exercise rehabilitation on depressive emotion, behavioral and psychological symptoms(BPSD) caused by Alzheimer's disease elders. Methods : The subjects of this study were 34 patients with Alzheimer's disease over 65 and assigned randomly into one of two groups, each with 17 people. The experimental group was treated by training in exercise rehabilitation executed 60 minutes, 3 times a week for 8 weeks. The results of the experiment were analyzed using samples t-test along with averages and standard deviations as the statistical methods for data analyses. Results : The results of this study were as follows. First, the experimental group showed statistically significant improvements in the areas of depressive emotion(SGDS) compared to control group. Second, the experimental group showed statistically significant improvements in the severity of behavioral and psychological symptoms and subjective degrees of pain of care givers(NPI-Q) compared to control group. Conclusion : Based on the results of this study, training in exercise rehabilitation have an effect on depressive mood and BPSD in elderly with Alzheimer's disease.