• 한국태양에너지학회 논문집
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• 제32권3호
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• pp.33-41
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• 2012

As the wind farms in large scale demand enormous amount of construction cost, minimizing the economic burden is essential and also it is very important to measure the wind resources and forecast annual energy production correctly to judge the economic feasibility of the proposed site by way of installing a Met mast at or nearby the site. Wind resources were measured by installing a 80[m] high Met mast at WangdeungYeo Island to conduct the research incorporated in this paper and offshore wind farm was designed using WindPRO. Wind farm of 100[MW] was designed making use of 3 and 4.5[MW] wind generator at the place selected to compare their annual energy production and capacity factor applying the loss factor of 10[%] and 20[%] respectively to each farm. As a result, 336,599[MWh] was generated by applying 3[MW] wind generator while 358,565 [MWh] was produced by 4.5[MW] wind generator. Difference in the energy production by 3[MW] generator was 33,660 [MWh] according to the loss factor with the difference in its capacity factor by 3.8[%]. On the other hand, 23 units of 4.5 [MW] wind generators showed the difference of annual energy production by 35,857 [MWh] with 4.0[%] capacity factor difference.

• 융합정보논문지
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• 제9권11호
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• pp.247-253
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• 2019

본 연구는 피부미용사를 대상으로 한 직무 스트레스와 소진 및 공감만족을 조사한 연구이다. 자료 수집을 위해 서울지역과 경기도 지역의 268명 피부미용사를 대상으로 설문조사를 실시하였다. 설문지 구성은 KOSS의 24개 항목과 ProQOL의 소진과 공감만족 각 10개 항목으로 구성되어 있다. 이 결과 한국의 직업적 스트레스 척도와 비교했을 때 상위 75%에 포함되었으며, 일반적인 특성에 따라 피부미용사들의 직무스트레스 및 소진과 공감만족이 보통 수준 이상으로 나타났다. 피부미용사들의 소진이 결코 적지 않음을 알 수 있었다. 본 연구는 피부미용사들의 직무스트레스와 소진을 줄이는 방법을 찾는 데 있어 기초자료로 사용될 수 있을 것으로 기대된다.

• PNF and Movement
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• 제21권1호
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• pp.1-10
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• 2023

Purpose: This systematic review aims to determine whether robot-assisted training is more effective in gait training for persons with subacute hemiparetic stroke. Methods: This study adopted a systematic review study design focused on subacute hemiparetic stroke, and four core academic databases were searched until June 11, 2021, for relevant studies, including PubMed, Embase, the Cochrane Library, and ProQuest Central. The review included randomized controlled trials (RCTs) evaluating the effects of robotic-assisted training on gait performance in persons with a diagnosis of subacute hemiparetic stroke. The selected RCT studies were qualitatively synthesized based on the population, intervention, comparison, outcome, settings, and study design (PICOS-SD). Results: The study selected five RCTs involving 253 subacute hemiparetic stroke patients and performing robotic-assisted gait training using the following devices: the Lokomat, Morning Walk, Walkbot, ProStep Plus, or Gait Trainer II. Five RCTs were eligible for the meta-analysis after quantitative synthesis, and the results showed that the robot-assisted gait training group had a greater gait performance than the control group based on the 10-meter walk test, Berg balance scale, Rivermed mobility index, functional ambulation category, and modified Barthel index. Conclusion: The results of this study showed that the gait performance of subacute hemiparetic stroke patients changes throughout robot-assisted gait training, but there were no indications that any of the clinically relevant effects of robot-assisted training are greater than those of conventional gait training. Further, the small sample size and different therapeutic intensities indicate that definitive conclusions could not be made.

• 예술인문사회 융합 멀티미디어 논문지
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• 제7권7호
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• pp.691-700
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• 2017

스포츠이벤트는 스포츠 산업의 핵심 상품으로 관련 비즈니스 규모는 꾸준히 증가하고 있다. 그러나 스포츠 이벤트의 관리의 측면에서 스포츠 이벤트를 통해 생성된 지식과 경험은 비효율적이고 비체계적으로 관리되고 있다. 이러한 이유로 스포츠 이벤트의 유치, 준비와 운영 과정에서 불필요한 자원의 낭비와 시행착오가 반복되곤 한다. 이 연구는 스포츠 이벤트 관리 프로세스를 개발하고 적합성을 평가하는 데 그 목적이 있다. 이 연구에서는 스포츠이벤트의 핵심 프로세스를 단계별로 개발한 뒤 설계된 업무 프로세스의 적합성 평가를 위해 유사한 환경의 시범대회를 선정하여 설계 된 프로세스를 적용 및 평가하였다. 적용 평가의 대상 기능영역은 등록, 숙박, 수송, 방송, 식음료의 5개 FA이며 이 중 63개의 액티비티를 선정하여 적합성 분석을 실행하였다. 프로세스 모델링 방법으로는 IDEF(IDEF; Integration Definition)방법을 사용하였다. 적합성 평가는 퍼지이론에 기반한 프로세스 마이닝 기법을 사용하였고, 프로세스 마이닝 도구로는 ProM을 활용하였다.

• 동의신경정신과학회지
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• 제25권1호
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• pp.1-12
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• 2014

Objectives: In this study, the meditation programs (${\alpha}$ version), which are properly coordinated according to the motion, breathing, and relaxation, are evaluated and researched upon to have positive effects on stress and in the area of psychology. Methods: Approved by the Clinical Trials Deliberation Committee in Oriental Medicine, Dongguk University, Ilsan Hospital, this study collected data according to the applicant's consents, demographic information and anthropometry for the Sasang Constitutional diagnosis. Sasang Constitutional diagnosis measured the beta tools by Institute of Oriental Medicine and a decision tree was made for the Sasang Constitutional questionnaires. The STAI, STAXI, BDI, and HRV were measured before and after the meditation in order to compare the effects of meditation according to Sasang Constitution. The HRV was used as a ProComP KM Tech (co). Results: 1) The positive changes available in the Time-domain analysis of heart rate variability assessment showed that the peace of mind is increased. By analyzing the Sasang constitution, So-eum In's peace of mind included a physical stability of the autonomic nervous system. 2) According to the psychological scale evaluation, each depression scale, trait anger, anger-in, state anxiety and trait anxiety index proved significantly positive effects. By analyzing the Sasang constitution, Eun-In which involved So-eum In and Tae-eum In, had positive effects. 3) The psychological scale changed the group of diagnosed depression or anxiety, it did not mean that the psychological scale changes in the depression group, but the index of the anxiety group had been significantly reduced. This program had clinical effects for anxious patients and Eum-In which involved Tae-eum In and So-eum In according to the analysis of Sasang constitution. 4) Correlations between the gender of each psychological scale showed that women have overall low correlations, but, there were no significant changes. Conclusions: The meditation program developed by adequately mixing Action, relaxation and breathing shows that it is effective for overall Eum-in physical and mental relaxation and concentration. In the future, It will have to be developed Meditation program to show the same effect for all people.

• 한국의학물리학회:학술대회논문집
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• 한국의학물리학회 2002년도 Proceedings
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• pp.275-278
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• 2002

The recognition of the natural background radiation is important not only for radiological education but also for the promotion of people's scientific view about radiation. We made a "room" on the web showing natural background radiation as part of a VRM (Virtual Radiation Museum). The "room" shows the video images of the tracks of charged particles from natural background radiation, alpha and beta ray track from known sources using a Large Scale Diffusion Cloud Chamber. The purpose of this study is to make clear the origin of a kind of track (named A-track) which is thick and easy to recognize with the length less than several cm in the cloud chamber, and to make numerical explanation of its counting rate. The study was carried out using a Large Scale Diffusion Cloud Chamber (Phywe, Germany) installed in the Niigata Science Museum. The Model RNC (Pylon Electronics, Canada) was used as Rn-222 source. Ra-226 activity in RNC was 111.6 Bq calibrated with NIST protocol. Rn-222 gas was injected into the cloud chamber. Continuous video recording with use of Digital Handycam (SONY, Japan) was carried out for 360 min. after injection of Rn-222 gas. The number of alpha-ray track (alpha track) in the video images was analyzed. The growth and decay curve of the total activity of Rn-222 and its alpha emitting progeny were calculated and compared with the count of the alpha tracks. As a result the alpha tracks formed by Rn-222 injection resemble A-Tracks. The relationship between A-track in the cloud chamber and atmospheric Rn is discussed.

• 한국간호교육학회지
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• 제8권1호
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• pp.72-83
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• 2002

The purpose of this study was to investigate the level of social support, loneliness, alcohol use and perceived health status in college students and to explore the relationships between the variables. The convenience sample consisted of 473 students attending a college located at Chonnam province. Data were collected by a structured questionnaire which included the PRO85-partⅡ Social Support Scale, revised UCLA Loneliness Scale, Alcohol frequency, Perceived Health Status Scale from June 10 to 25, 2001. And data were analyzed by SPSS/PC+program including descriptive statistics, t-test, ANOVA, Pearson's Correlation Coefficients. The results are summarized as follows; 1. The mean scores of social support, loneliness and perceived health status were 3.01($SD={\pm}0.31$), 2.08($SD={\pm}0.34$), 1.64($SD={\pm}0.65$) respectively. 2. Students in use of alcohol mostly reported that they had started a drinking in the period of high school(35.7%), motivated with friendship(32.6%) and drank with their friends(56.9%) in drinking frequency of 2-3times per a month(49.6%). 3. The students who have friend of the opposite sex were significantly more likely to have higher than the students having no friend of the opposite sex in scores of social support. 4. The scores of loneliness were significantly lower in female students than male students, in students with friend of the opposite sex than with no friend of the opposite sex. 5. There were significant negative correlations between social support and loneliness(r=-5.25, p<.000), and between loneliness and perceived health status(r=-0.93, p<.05), while there was a significant positive correlation between social support and perceived health status(r=1.01, p<.05). The findings suggested that supportive social support, especially lowering loneliness, would be a powerful nursing intervention in maintaining good health of college students. And, more variables affecting health status in college students will be identified with further research.

• 대한치과교정학회지
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• 제32권1호통권90호
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• pp.59-69
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• 2002

본 연구는 측모두부방사선규격사진의 디지털 영상을 enhancement하였을 때 계측점 설정의 재현도를 비교 평가하여 두부방사선사진 계측점 설정에 도움이 되고자 시행되었다. 10명의 측모두부방사선규격사진을 촬영하여 컴퓨터에 입력하고 Quick Ceph Image Pro$^{TM}$에서 gray-scale equalization number를 50으로, detail enhancement number를 50으로 설정하여 방사선상을 4단계까지 enhancement하였다. 5명의 조사자가 모니터 상에서 32개의 계측점을 설정하고 방사선상의 각 enhancement 단계에서 각 계측점에 대해 5명의 조사자가 설정한 점과 이 점들의 중심점간의 거리인 편위량으로 조사자간 계측점 설정의 재현도를 비교 평가하여 다음과 같은 결과를 얻었다. 1. Enhancement를 하지 않은 방사선상에서 조사자간 재현도는 계측점에 따라 다양하게 나타났다. 2. 방사선상 enhancement 따른 계측점의 편위량을 비교한 결과, 5개의 계측점에서 방사선상의 enhancement 단계간에 조사자간 계측점 설정의 재현도가 통계적으로 유의한 차이를 보였다. 3. 계측점 pterygomaxillary fissure는 enhancement 단계 1과 2의 방사선상에서, 계측점 Posterior nasal spine은 enhancement 단계 1의 방사선상에서, 계측점 menton은 enhancement 단계 2, 3과 4의 방사선상에서 조사자간 계측점 설정의 재현도가 enhancement하지 않은 영상에 비하여 높게 나타났다. 이상의 결과로 모니터 상에서 측모두부방사선규격사진의 계측점 설정시 디지털 방사선상의 enhancement를 통하여 일부 계측점에서 재현도를 증가시킬 수 있음을 알 수 있었다.

• 재활치료과학
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• 제12권2호
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• pp.69-83
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• 2023

목적 : 본 연구는 예비연구로 65세 이상 노인을 대상으로 Information & Communication Technology(ICT) 홈 기반 프로그램을 적용하여 인지향상 프로그램의 효과를 확인하고, 원격재활 전달모델로서 가능성을 찾고자 한다. 연구방법 : 2022년 8월부터 10월까지 대상자 3인을 선정하여 약 2개월에 걸쳐 ICT 홈 기반 인지향상 프로그램 중재를 실시하였다. 본 중재는 프로그램 전·후 인지향상을 평가하기 위해 한국판 간이 정신상태 검사, 한국판 몬트리올 인지평가, 노인용 전산화 인지평가도구, Two shorter form of the Center for Epidemiologic Studies Depression scale을 사용하여 진행하였다. 치료사는 원격으로 대상자의 수준에 맞는 인지훈련의 난이도 조절을 매주 피드백을 통해 설정하고 프로그램 진행 시에는 매일 정해진 시간에 치료사의 도움 없이 진행하였다. 인지향상 프로그램에 대한 추가 의견을 위해 인터뷰를 진행하였다. 결과 : 중재 후, 사전 사후에 진행한 한국판 몬트리올 인지평가 대부분의 항목에서 모든 대상자가 향상된 점수를 보였다. 또한 Cotras-pro의 항목 중 상위인지, 언어능력, 주의집중, 시지각, 기억력이 향상되었다. 결론 : ICT 홈 기반 프로그램을 사용한 인지재활훈련은 치매를 예방할 뿐 아니라 원격재활에 대한 내적동기 또한 가질 수 있었다. 본 연구를 통해 노인을 대상으로 한 원격재활이 가능할 수 있음을 확인할 수 있었다.

• The Journal of Korean Physical Therapy
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• 제30권4호
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• pp.135-140
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• 2018

Purpose: This study aimed to determine the appropriate stimulus strength that could result in a positive effect on the ankle joint spasticity when patients with chronic stroke performed whole body vibration (WBV) exercise. Methods: Among 72 patients who were diagnosed with stroke at least 6 months ago, those able to perform a half squat pose with ambulation issues due to ankle joint spasticity (modified Ashworth scale, $MAS{\geq}2$) were included for analysis. Individuals participated in four different frequencies of vertical WBV exercise; 0 Hz, 10 Hz, 20 Hz, and 30 Hz. Vibration amplitude was 3-4 mm and 5 minutes WBV exercise was performed at each frequency, followed by a measurement after 2-minute rest. We assigned 18 individuals to each frequency and asked them to participate in the WBV exercise once every 3 weeks. The level of spasticity was evaluated by visual analogue scale (VAS) for self-assessment. The myoton PRO was utilized to objectively evaluate the level of spasticity and check the muscle tone and stiffness. Results: Participants showed 0 Hz VAS was a significant difference between 20 Hz application conditions (p<0.05). Muscle tone was significantly different at 0 Hz between 20 Hz, and 30 Hz (p<0.05), significantly difference at 10 Hz between 30 Hz (p<0.05). Muscle stiffness significantly difference at 0 Hz between 20 Hz, and 30 Hz (p<0.05), significantly difference at 10 Hz between 20 Hz, and 30 Hz (p<0.05). Conclusion: Findings of this study show that the frequency of more than 20 Hz was effective in improving the ambulatory ability in patients with chronic stroke. Currently, the effective WBV protocol is limited. Hence, this study was designed to suggest an effective WBV protocol to improve neuromodulation ability for chronic stroke patients.