• Journal of Korean Academy of Nursing
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• v.46 no.1
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• pp.140-148
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• 2016

Purpose: This study was performed to determine the physical and psychological effects of an urban forest-walking program for office workers. For many workers, sedentary lifestyles can lead to low levels of physical activity causing various health problems despite an increased interest in health promotion. Methods: Fifty four office workers participated in this study. They were assigned to two groups (experimental group and control group) in random order and the experimental group performed 5 weeks of walking exercise based on Information-Motivation-Behavioral skills Model. The data were collected from October to November 2014. SPSS 21.0 was used for the statistical analysis. Results: The results showed that the urban forest walking program had positive effects on the physical activity level (U=65.00, p <.001), health promotion behavior (t= - 2.20, p =.033), and quality of life (t= - 2.42, p =.020). However, there were no statistical differences in depression, waist size, body mass index, blood pressure, or bone density between the groups. Conclusion: The current findings of the study suggest the forest-walking program may have positive effects on improving physical activity, health promotion behavior, and quality of life. The program can be used as an effective and efficient strategy for physical and psychological health promotion for office workers.

• Tuberculosis and Respiratory Diseases
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• v.64 no.5
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• pp.387-391
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• 2008

Bronchopulmonary infections caused by trichomonads have been reported principally in patients with pre-existing pulmonary diseases, such as bronchial carcinoma, lung abscess, or bronchiectasis. Pulmonary trichomoniasis is most often caused by Trichomonas tenax, which is usually regarded as a harmless commensal organism of the human mouth. However, pulmonary infection may rarely be caused by other trichomonas species, including Trichomonas vaginalis from the genitourinary tract and Trichomonas hominis from the intestines. Because of the rarity of trichomonas pulmonary infection, and because of its close association with underlying lung and systemic disease, pulmonary trichomoniasis is considered an opportunistic infection. We recently treated a case of pulmonary trichomoniasis occurring in a young, healthy male without obvious underlying pulmonary or systemic illness. To our knowledge, there has been only one reported case of pulmonary trichomoniasis in Korea, and there have been only two reported cases of pulmonary trichomoniasis occurring in normal lung worldwide.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2008.06a
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• pp.132-132
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• 2008

Silicon carbide (SiC) is an attractive material for high-power, high-temperature, and high-frequency applications. So far, atomic force microscopy (AFM) has been extensively used to study the surface charges, dielectric constants and electrical potential distribution as well as topography in silicon-based device structures, whereas it has rarely been applied to SiC-based structures. In this work, the surface potential and topography distributions SiC with different doping levels were measured at a nanometer-scale resolution using a scanning kelvin probe force microscopy (SKPM) with a non-contact mode AFM. The measured results were calibrated using a Pt-coated tip and a metal defined electrical contacts of Au onto SiC. It is assumed that the atomically resolved surface potential difference does not originate from the intrinsic work function of the materials but reflects the local electron density on the surface. It was found that the work function of the Au deposited on SiC surface was higher than that of original SiC surface. The dependence of the surface potential on the doping levels in SiC, as well as the variation of surface potential with respect to the schottky barrier height has been investigated. The results confirm the concept of the work function and the barrier heights of metal/SiC structures.

• Journal of the Computational Structural Engineering Institute of Korea
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• v.21 no.3
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• pp.287-294
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• 2008

This study proposes a novel method for in service evaluation of tension force of a prestressed 7-wire strand which is frequently employed for retrofitting bridge superstructure. The smart strand is made by replacing the straight king wire of the strand with an instrumented steel tube in which the FBG sensor is embedded. Since the strain of the smart strand can easily be measured using the sensor, it is possible to monitor tension force of the strand during the service. For the sake of demonstrating effectiveness of the proposed strand, we came up with a 7.0m long prototype with 2 FBG sensors, and it is applied as an external tendon to a 6.4m long and 0.6 high RC T-shaped beam. A loading-unloading test has been carried out, and estimated tension forces using the smart strand are compared with measured forces by load cell. The comparison showed that the proposed smart tendon is useful and accurate for monitering tension force of the prestressed tendon.

• The Journal of Churna Manual Medicine for Spine and Nerves
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• v.9 no.1
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• pp.67-75
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• 2014

Objectives : The purpose of this study is to report a clinical progress of treatment of fibromyalgia through Traditional Korean medicine treatment. A patient was diagnosed with fibromyalgia by clinical correlation on 2009 in Jeonnam university hospital, he had multi sited pain and severe muscle spasm. Methods : Between 27th march 2014 and 15th April 2014, he was treated with acupuncture, cupping, electro-acupuncture and chuna therapy every day and observed by visual analogue scale and assessment about number of pain site and square of pain. Results : After treated by using above treatment, VAS and assessment about number of pain site and square of pain were improved. Conclusions : Chuna therapy and other Traditional Korean medicine treatment are estimated to be good for fibromyalgia. But more cases are required to prove the effectiveness of chuna therapy on fibromyalgia.

• Elastomers and Composites
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• v.50 no.3
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• pp.223-230
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• 2015

Bacterial infection is one of the most common and universal cause of disease spreading associated with medical and surgical environment. Antimicrobial function of plasticized polyvinyl chloride (PVC) will be useful for making hygienic environments. Here, we synthesized the PVC composite by the addition of inorganic bacteriocide containing silver, zinc and zeolite. And we investigated the growth inhibition rate for Staphylococcus aureus and Klebsiella pneumoniae which were analyzed in the presence of PVC composite with different doses of inorganic bacteriocide (1~15 wt%). Bacterial proliferation was significantly inhibited by 3 wt% of inorganic bacteriocide containing PVC composite. And we found the inhibition of bacterial biofilm formation by 5 wt% of inorganic bacteriocide containing PVC composite by the observation of scanning electron microscopy (SEM). Our data suggested that the antimicrobial effect of inorganic bacteriocide was caused by disturbing the bacterial biofilm formation.

• Journal of Acupuncture Research
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• v.27 no.5
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• pp.135-143
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• 2010

Objectives : The purpose of this study was to investigate the effect of Korean medicine and Shoe Lift for scoliosis with sciatic pain patient. Methods : The patient who has scoliosis and sciatic pain was treated by Korean medicine and Shoe Lift. The patient's symptoms were assessed by Cobb's angle, correctability, verbal numberical rating scale(VNRS) and revised oswestry disability questionnaire(RODQ) every week. Results : After 18weeks treatment, Cobb's angle correctability was 34.357%. Patient's VNRS score and RODQ score were decreased each from 10 to 1 and from 41 to 6. Conclusions : This result suggest that Korean medicine and Shoe Lift were effective treatment on patient for scoliosis with sciatic pain.

• Journal of Acupuncture Research
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• v.27 no.5
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• pp.13-24
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• 2010

Objectives : This study was designed to investigate the effects of bee venom acupuncture at Shinsu($BL_{23}$) and Daejangsu($BL_{25}$) on neuropathic pain induced by tibial and sural nerve injury in rats. Methods : Neuropathic pain model was made by partial resection of tibial and sural nerve. Three weeks after the neuropathic surgery, bee venom acupuncture was firstly injected at $BL_{23}$ and $BL_{25}$, then we measured withdrawal responses induced by von Frey filament and acetone stimulation. Bee venom acupunctures were injected 6times on every 2days. Measurement of withdrawal responses were conducted on the same days. After bee venom acupuncture injection, expression levels of c-Fos, nocieptin and KOR-3 were observed through using immunohistochemistry. Results : In this experiment, bee venom acupunctures at $BL_{23}$ and $BL_{25}$ decreased levels of withdrawal responses induced by von Frey filament and acetone stimulation respectively. In addtion, expression levels of c-Fos, nociceptin and KOR-3 in central gray part of brain in rats were decreased by bee venom acupuncture. Conclusions : These results imply that bee venom acupuncture was useful to treat patients with neuropathic pain, and related mechanisms were involved in opioid and their receptors such as nociceptin and KOR-3.

• Journal of Digital Convergence
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• v.13 no.1
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• pp.415-427
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• 2015

The purpose of this study is to examine improvements relating to lifesaving by the comparative study of The International Life Saving Federation (ILS) and the domestic institutions. ILS divided places into pool, the inland surface water, and the outer surface water and was using a more fine-grained and specialized educational programs due to location and environmental factors. The other side, domestic organizations also conducted various methods depending on each association. In conclusion, we suggest that preferentially we need to establish an educational system which has public confidence and unify the terminology for lifeguard. And the institutions need to popularize the advanced lifesaving system through international exchanges.

• Proceedings of the IEEK Conference
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• 2007.07a
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• pp.303-304
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• 2007

In this paper, we implement an automatic distance speech recognition system for voiced-enabled services. We first construct a baseline automatic speech recognition (ASR) system, where acoustic models are trained from speech utterances spoken by using a cross-talking microphone. In order to improve the performance of the baseline ASR using distance speech, the acoustic models are adapted to adjust the spectral characteristics of speech according to different microphones and the environmental mismatches between cross-talking and distance speech. Next we develop a voice activity detection algorithm for distance speech. We compare the performance of the base-line system and the developed ASR system on a task of PBW (Phonetically Balanced Word) 452. As a result it is shown that the developed ASR system provides the average word error rate (WER) reduction of 30.6 % compared to the baseline ASR system.