Masan, South Korea
Masan, South Korea

Kyungnam University is a private university located in Changwon , the capital city of Gyeongsangnam-do, South Gyeongsang or Gyeongnam province, in Southeastern South Korea. Kyungnam University has six colleges . Its 15 research institutions work to facilitate not only individual research but also cooperative partnership activities with academia, industry, and government. The university also has 65 sister universities in 19 different countries. The university sees itself as a model regional university of the 21st century, with specialization in globalization and localization under the university's motto of 'truth, freedom, and creation'. With the university motto as its guideline, its educational goal is to produce well-educated professionals, community leaders and true world citizens by guiding students in their discovery and formation of ideas about humanity, nature, society, culture, and scientific theory and its application. Wikipedia.

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Korea Water Resources Corporation, Hanyang University and Kyungnam University | Date: 2014-03-31

Provided is a separation membrane for seawater desalination and a method for manufacturing the same, and more particularly, a separation membrane for seawater desalination with excellent water permeability and salt rejection and a method for manufacturing the same. If the separation membrane for seawater desalination and the method for manufacturing the same according to the present disclosure are applied, it is possible to provide a separation membrane for seawater desalination with excellent water permeability and salt rejection. Therefore, it is possible to provide a separation membrane for seawater desalination with improved performance in comparison to an existing separation membrane for seawater desalination. As a result, water resources may be widely utilized.

Park D.-S.,Konyang University | Lee G.,Kyungnam University
Journal of NeuroEngineering and Rehabilitation | Year: 2014

Background: A balance test provides important information such as the standard to judge an individual's functional recovery or make the prediction of falls. The development of a tool for a balance test that is inexpensive and widely available is needed, especially in clinical settings. The Wii Balance Board (WBB) is designed to test balance, but there is little software used in balance tests, and there are few studies on reliability and validity. Thus, we developed a balance assessment software using the Nintendo Wii Balance Board, investigated its reliability and validity, and compared it with a laboratory-grade force platform. Methods. Twenty healthy adults participated in our study. The participants participated in the test for inter-rater reliability, intra-rater reliability, and concurrent validity. The tests were performed with balance assessment software using the Nintendo Wii balance board and a laboratory-grade force platform. Data such as Center of Pressure (COP) path length and COP velocity were acquired from the assessment systems. The inter-rater reliability, the intra-rater reliability, and concurrent validity were analyzed by an intraclass correlation coefficient (ICC) value and a standard error of measurement (SEM). Results: The inter-rater reliability (ICC: 0.89-0.79, SEM in path length: 7.14-1.90, SEM in velocity: 0.74-0.07), intra-rater reliability (ICC: 0.92-0.70, SEM in path length: 7.59-2.04, SEM in velocity: 0.80-0.07), and concurrent validity (ICC: 0.87-0.73, SEM in path length: 5.94-0.32, SEM in velocity: 0.62-0.08) were high in terms of COP path length and COP velocity. Conclusion: The balance assessment software incorporating the Nintendo Wii balance board was used in our study and was found to be a reliable assessment device. In clinical settings, the device can be remarkably inexpensive, portable, and convenient for the balance assessment. © 2014 Park and Lee; licensee BioMed Central Ltd.

Nam J.-H.,Kyungnam University | Lee T.J.,University of Queensland
International Journal of Hospitality Management | Year: 2011

Despite the tourism growth in Korea, foreign travelers remain dissatisfied with Korean restaurants. Accordingly, this research investigates the factors influencing foreign travelers' satisfaction with traditional Korean restaurants. Using a modified SERVQUAL scale, three dimensions of service quality ('intangibles', 'tangibles', and 'food') as well as expectation and value for money appear to positively influence foreign travelers' satisfaction with traditional Korean restaurants. In turn, foreign travelers' satisfaction has a positive influence on both their intention to revisit and their intention to recommend. The results of this study are useful to help restaurants develop strategies to strengthen foreign travelers' satisfaction with their experience at traditional Korean restaurants. © 2011 Elsevier Ltd.

Na U.J.,Kyungnam University
International Journal of Precision Engineering and Manufacturing | Year: 2012

A typical magnetic bearing system is composed of two radial magnetic bearings and an axial magnetic bearing. The axial magnetic bearing with a large axial disk usually limits rotor dynamic performance and makes assembling and disassembling difficult for maintenance work. This paper proposes a novel permanent magnet biased integrated radial-axial magnetic bearing without axial disk. The axial magnetic bearing unit in this integrated magnetic bearing utilizes reluctance forces such that the axial disk can be removed from the bearing unit. The 4-pole homopolar type radial magnetic bearing unit is also designed and analyzed. 3-D flux analysis is provided to illustrate the novel diskless integrated magnetic bearing. © KSPE and Springer 2012.

Lee S.,Kyungnam University
Educational Technology and Society | Year: 2013

The purpose of this study is to search for any difference in self-expression of Second Life residents with different levels of shyness. For this purpose, we used sixty students from two fifth-grade elementary school classes. Thirty students were assigned to the high shyness group and the rest to the low shyness group. Each group completed pre- and post- self-expression tests. After six weeks of speaking activities in Second Life, the results indicate that self-expression scores increased for students in both the high and the low shyness groups. The low shyness group showed an increase by 1.00 in the self-expression score. However, the high shyness group showed an increase by 3.14 after the speaking activities. This result suggests that Second Life can be a good environment to enhance self-expression in students, especially those with degrees of high shyness. © International Forum of Educational Technology & Society (IFETS).

Park D.,Kyungnam University
Physical Review A - Atomic, Molecular, and Optical Physics | Year: 2014

Similar to the three-qubit Greenberger-Horne-Zeilinger (GHZ) symmetry we explore the four-qubit GHZ symmetry group and its subgroup, the restricted GHZ symmetry group. While the set of symmetric states under the whole group transformation is represented by three real parameters, the set of symmetric states under the subgroup transformation is represented by two real parameters. After comparing the symmetric states for whole group and subgroup, the entanglement is examined for the latter set. It is shown that the set has only two stochastic local operations and classical communication classes, Labc2 and Gabcd. Extension to the multiqubit system is briefly discussed. © 2014 American Physical Society.

Sin H.,Inje Institute of Advanced Studies | Lee G.,Kyungnam University
American Journal of Physical Medicine and Rehabilitation | Year: 2013

OBJECTIVE: The aim of this study was to investigate the effects of additional virtual reality training using Xbox Kinect on upper extremity function, including range of motion, motor function, and gross manual dexterity, in stroke survivors with hemiplegia. DESIGN: This study is a randomized controlled trial. Forty participants were randomly allocated to either the experimental or control groups; the experimental group (n = 20) underwent virtual reality training using Xbox Kinect and conventional occupational therapy, and the control group (n = 20) underwent conventional occupational therapy alone. The mean time since the onset of stroke was 7.22 mos in the experimental group and 8.47 mos in the control group. At baseline and after 6 wks of intervention, range of motion of the upper extremity was measured, and the Fugl-Meyer Assessment and the Box and Block Test were performed. RESULTS: After intervention, significant improvements from baseline values in range of motion of the upper extremity, Fugl-Meyer Assessment scores, and Box and Block Test scores were observed in the experimental and control groups (P < 0.05). At follow-up, there were significant differences between the two groups in range of motion (except for the wrist), Fugl-Meyer Assessment scores, and Box and Block Test scores (P < 0.05). CONCLUSIONS: The hemiplegic stroke survivors who received additional virtual reality training using Xbox Kinect showed significantly improved function of the upper extremity. However, the effects of the virtual reality training using Xbox Kinect may have been a result of the greater total intervention time in the training group compared with the control group. Thus, the potential efficacy of Xbox Kinect in the rehabilitation of post-stroke survivors needs to be investigated in greater depth. Copyright © 2013 by Lippincott Williams & Wilkins.

Han S.,Kyungnam University
Journal of Mechanical Science and Technology | Year: 2010

An effective and simple way to reconstruct displacement signal from a measured acceleration signal is proposed in this paper. To reconstruct displacement signal by means of double-integrating the time domain acceleration signal, the Nyquist frequency of the digital sampling of the acceleration signal should be much higher than the highest frequency component of the signal. On the other hand, to reconstruct displacement signal by taking the inverse Fourier transform, the magnitude of the significant frequency components of the Fourier transform of the acceleration signal should be greater than the 6 dB increment line along the frequency axis. With a predetermined resolution in time and frequency domain, determined by the sampling rate to measure and record the original signal, reconstructing high-frequency signals in the time domain and reconstructing low-frequency signals in the frequency domain will produce biased errors. Furthermore, because of the DC components inevitably included in the sampling process, low-frequency components of the signals are overestimated when displacement signals are reconstructed from the Fourier transform of the acceleration signal. The proposed method utilizes curve-fitting around the significant frequency components of the Fourier transform of the acceleration signal before it is inverse-Fourier transformed. Curve-fitting around the dominant frequency components provides much better results than simply ignoring the insignificant frequency components of the signal. © 2010 The Korean Society of Mechanical Engineers and Springer-Verlag Berlin Heidelberg.

Lee W.J.,Kyungnam University
Marine Biology Research | Year: 2012

Sixty-two species from 12 genera of heterotrophic euglenids (Euglenozoa, Protista) were found during a long-term, intensive study of marine sediments in Botany Bay (Australia). Of the 62 species, 44 are described with uninterpreted records based on light microscopy. The records include accounts of seven unidentified taxa and one new taxon (Petalomonas gini sp. nov.). Most euglenid flagellates described here have been found at other locations worldwide, but many (rare) species are not reported from any other locations. It is not possible to assess if these species are endemic because of the lack of intensive studies elsewhere. However, these results suggest that the euglenid communities from Botany Bay are distinctive. This article discusses the validity of the Sphenomonadina and Heteronemadina, and morphospecies of heterotrophic euglenids. © 2012 Copyright Taylor and Francis Group, LLC.

Kyungnam University | Date: 2012-06-18

An axial flux synchronous generator for wind turbine generators is provided including a shaft coupled to receive power with a power generating apparatus for the wind turbine; a rotor coupled rotatably to the shaft and having upper and lower disk-like faces affixed with a plurality of skewed permanent magnets having north-south (N-S) pole pairs and distantly arranged; an upper stator and a lower stator both having a plurality of slots formed similar to the skewed permanent magnets for taking windings of a coil, the upper stator being displaced relative to the lower stator by an electric angle in the range of 2530; an upper housing and a lower housing for housing the rotor, the upper stator and the lower stator together; and a hub housing for fastening the upper housing and the lower housing to maintain constant gaps between the rotor and the upper stator and the lower stator.

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