• Journal of information and communication convergence engineering
• /
• v.7 no.2
• /
• pp.176-181
• /
• 2009

This study is part of a project to develop and improve mooring systems for oceanographic use that include an electro-optical sensor, 1MHz Nortek Aquadopp Doppler Profiler and AIRMAR multipurpose Sensor. The adaption of Doppler current profilers to measure directional wave spectra has provided a new instrumentation approach to coastal and nearshore oceanographic studies. The HEIOB is developed are light weight and of a compact design, and can be easily installed in marine environment. Since there are no base station and gateways in marine environments, we selected CDMA and Orbcomm to send the data information. Therefore, the data can be sent by either e-mail service or Short Message Service (SMS). This paper will present some of scientific sensor results regarding real-time oceanographic and meteorological parameters such as wind spend, wind direction, wave direction, and etc. The modeling and test results highlight the engineering challenges associated with designing these systems for long lifetimes. It can also be used in future application to build wave observation buoy network in real-time using multiple ubiquitous buoys that share wave data and allow analysis of multipoint, multi-layer wave profiler.

• Journal of Environmental Science International
• /
• v.21 no.9
• /
• pp.1149-1162
• /
• 2012

The impact of a considerable increase in traffic volume on the emission and concentrations of air pollutants was investigated at three beaches (Haeundae (HB), Gwanganri (GB), and Songjeong (SB)) in Busan during beach opening period (BOP) in 2011. During the BOP, passenger car was the major vehicle type, followed by taxi, and van. CO was the major contributor of total air pollutant emissions followed by NOx, VOC, and $PM_{10}$. For the temporal variation of the emission of air pollutants during the BOP, it was generally the highest in the afternoon followed by the evening and morning, except for SB. For the spatial variation of their emission, it was the highest at GB followed by SB and HB. The emissions of air pollutants during the BOP were generally higher than those during the Non-BOP, except for HB. In contrast, the significant impact of the traffic volume increase on the concentrations of air pollutants at monitoring sites near the three beaches during the BOP were not found compared to the Non-BOP due to the significant distances between monitoring sites of air pollutants and monitoring sites of traffic volume at the beaches.

• Journal of Environmental Science International
• /
• v.20 no.4
• /
• pp.443-455
• /
• 2011

This study was conducted to investigate the flora of Mt. Jang located at Haeundae-Gu in Busan. The survey for the flora was carried out from Oct. 2008 to Sep. 2009. The results were obtained as follows. The flora consists of 5 forms, 22 varieties, 238 species, 198 genera, 91 families, 47 orders, 7 classes, and 3 divisions as total 265 taxa. The typical communities were Osmunda japonica com., Stephanandra incisa com., Gleichenia japonica com., Eurya japonica-Pinus thunbergii com., Styrax japonica-Pinus thunbergii com., and Smilax china com. which were distributed along Forest Bathing Area and Yangun Falls, Miscanthus sinensis for. purpurascens com., Carpinus turczaibovii var. coreana com and Pseudosasa japonica were distributed around the top of mountain. According to the ecological characteristic species, the evergreen plants were observed 15 taxa 14 genera 13 families, the naturalized plants 18 taxa 17 genera 10 families, the specific plants categorized by Ministry of Environment 20 taxa 18 genera 18 families, the endangered plant 1 specie Utricularia yakusimensis, and the cultivated plants were observed 21 taxa 18 genera 14 families.

• Investigative Magnetic Resonance Imaging
• /
• v.21 no.4
• /
• pp.259-263
• /
• 2017

Calcifying aponeurotic fibroma (CAF) is an uncommon benign tumor and a locally aggressive fibroblastic lesion. It commonly affects the palmar side of the hand and fingers, and the soles of the feet. The typical clinical manifestations are known as a poorly circumscribed, slow-growing, and asymptomatic firm mass. Most CAFs usually reveal low to intermediate or isointensity on T1-weighted images, and strong heterogeneous enhancement. However, various signal intensities on T2-weighted images have been reported depending on the degree of hypocellularity or the amount of calcification or collagen within the tumor. This report provides the radiographic and MRI finding of CAF arising in uncommon site, the knee region, of a 19-year-old male who presented with a painful and palpable mass.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
• /
• v.29 no.3
• /
• pp.197-207
• /
• 2016

Objectives : The purpose of this study is to report the effectiveness of acupuncture treatment on the patients suffered from glossitis.Methods : Total five Korean patients suffering from glossitis, 60 and 37 years old male patients, 61, 71 and 49 years old female patients were participated. Each patient received acupuncture treatment(heart hangyeok) twice to five times in same part of the body.Results : We attained meaningful results which show recovery from pustules, ulcers, redness and swelling in visual symptoms and the relief of acute and chronic pain, recovery from paraesthesia, and dysgeusia in subjective symptoms.Conclusions : In this study, acupuncture treatment(heart hangyeok) was effectively controlled inflammation status of glossitis.

• Journal of the Korean Society of Physical Medicine
• /
• v.7 no.4
• /
• pp.533-539
• /
• 2012

PURPOSE: The purpose of this study was to investigate the effect of pelvic floor muscle contraction with image feedback on Abdominal muscle thickness. METHODS: Twenty three adults participated in this study. Abdominal muscle thickness was measured by ultrasound in three condition(rest, pelvic floor muscle contraction, pelvic floor muscle contraction with image feedback). Subjects was contraction pelvic floor muscle by general method. And ultrasound(convex probe, 3.5MHz) was used to image feedback for selective pelvic floor muscle contraction. One-way ANOVA was used to compare abdominal muscle thickness in three condition. RESULTS: There was no significant difference in external oblique(p=.514) and internal oblique muscle(p=.250) thickness by three condition. There was significant difference in transverse abdominis thickness by three condition (Transverse abdominis thickness was highest while Pelvic floor muscle contraction than pelvic floor muscle contraction with image feedback and rest.)(p=.000). CONCLUSION: This study shows that pelvic floor muscle contraction with image feedback increase the thickness of transverse abdominis lesser than general pelvic floor muscle contraction.

• Journal of the Korean Society of Physical Medicine
• /
• v.8 no.1
• /
• pp.147-151
• /
• 2013

연구목적: 본 연구는 허리 골반의 수의적 조절을 동반한 다리 들기 운동이 배 근육에 미치는 영향을 알아보기 위하여 엉덩 관절의 벌림 각도에 따라 다리 들기 시 배근육의 활성도를 확인하였다. 연구방법: 20대 정상성인을 대상으로 엉덩 관절 벌림각도($0^{\circ}$, $30^{\circ}$)에서 압력 센서 사용 그룹과 사용하지 않는 그룹으로 나우어 다리 들기를 실시하는 동안 복부 근육의 근활성도를 측정하였다. 연구결과: 엉덩 관절 벌림 $0^{\circ}$와 $30^{\circ}$ 모두에서 오른쪽 다리를 들어 올리는 동안 반대측 내복사근과 동측 외복사근에서 수의적 조절을 한 그룹과 하지 않은 그룹 사이에 통계적인 유의한 차이를 보였다(p<.05). 결론: 허리 골반의 수의적 조절을 통한 다리 들기 시 몸통 안정성의 증가를 통하여 안정적인 배 근육 강화 훈련을 수행 할 수 있을 것으로 생각되며 요통 환자에게도 안정적인 임상적용이 기대된다.

• Journal of Korean Academy of Fundamentals of Nursing
• /
• v.23 no.3
• /
• pp.320-330
• /
• 2016

Purpose: The purpose of this study was to evaluate the effect of critical thinking and self-concept on stress adaptation in transfer nursing students. Methods: For this study, data were collected from 196 transfer nursing students from Busan and South Gyeongsang Province Data collection was done during the period from September to December, 2015. Data were analyzed using descriptive statistics, t-test, one-way ANOVA, Pearson correlation coefficients and multiple regression. Results: The results showed that for critical thinking gender (t=2.48, p=.014), age (F=2.90, p=.044) and club activities (t=2.05, p=.041) were significant. Stress adaptation was significant according to academic year (F=3.81, p=.025). Critical thinking, self-concept and stress adaptation had positive correlations. Conclusion: Findings indicate that college adjustment for transfer nursing students could be enhanced through the development of programs to promote critical thinking and self-concept in the nursing curriculum.

• Korean Journal of Health Education and Promotion
• /
• v.30 no.2
• /
• pp.1-10
• /
• 2013

Objectives: The objective of this study was to assess the relationship between internet addiction and health behaviors & mental health among Korean adolescents. Methods: Data from the 2010 Korean Youth Risk Behavior Web-based Survey was analyzed. Using the Korean Internet Addiction Proneness Scale for Youth-Short Form: Self Report developed by the Korean National Information Society Agency in 2008, subjects were classified into 3 groups for internet addiction including general user, potential-risk group, and high-risk group. The health behaviors and mental health were compared among the groups for internet addiction by gender. Results: There was significantly higher prevalence of internet addiction including potential-risk group and high-risk group in boys(14.1%) than in girls(8.8%). There were significant odds ratios of perceived stress, perceived depression, perceived health and happiness, and satisfaction of sleeping in both genders at potential-risk group and high-risk group compared to general user for the internet addiction. The odds ratios of smoking at high risk group, alcohol drinking at potential risk group, eating breakfast at high risk group, and moderate physical activity at both risk groups among boys were significant. Among girls at both risk group, the odds ratios of smoking, alcohol drinking, and eating breakfast were significant. Conclusions: This study reveals a significant association among internet addiction, and health behaviors, and mental health in Korean adolescents.

• Korean Institute of Interior Design Journal
• /
• v.13 no.5
• /
• pp.114-124
• /
• 2004

Most previous studies, in general, related to housing needs have analyzed the data from self-administered survey or interview using questionnaire or simple 2D floor plan. This study was Intended to suggest how to increase the reliability and effectiveness of such survey methods in examining the residents' housing needs. In order to accomplish the purpose, the two kinds of surveys using Web based VR media and typical questionnaire were peformed. The same questions were used for these two surveys, and they included the furniture characteristics, use of each room, adjustment of room size, preferences for interior colors, preferred furniture in living room, space layout of floor plan, housing life style, and preference for housing characteristics. The answer differences between these two were analyzed. The subjects were 402 housewives who lived in apartment houses in Haeundae, Busan. Finding were as follows: first, the media method was more likely to be effective than typical questionnaire survey in explaining housing needs for the adjustment of room size in housing unit plan. Second, the media method was more realistic and reliable than the other in comprehending the needs for the interior colors. Last, the VR media tended to be more effective than the other in understanding the space layout of floor plan. This research sheds light on the utilization of visual instrument for the analysis of needs related to space use.