Earticle

목적: 본 연구는 사회적 지지와 정신건강이 시설 거주 노숙인들의 삶의 질에 미치는 영향을 알아보고자 하였다. 연구방법: 본 연구는 2024년 9월 1일부터 2024년 10월 31일까지 시설 거주 노숙인 85명을 대상으로 시행하였다. 연구 도구는 구조화된 설문지로서 일반적인 특성을 묻는 문항, 사회적 지지, 우울, 불안, 주관적 기억감퇴, 삶의 질 측정 도구를 사용하였다. 기술통계 분석을 통해 일반적 특성을 확인하였고, 피어슨 상관분석을 통해 각 변수들 간의 상관관계를 알아보았으며, 다중회귀분석을 사용하여 사회적 지지와 정신건강이 삶의 질에 미치는 영향을 분석하였다. 결과: 연구 결과 주관적 기억감퇴는 우울의 신체 저하 영역, 불안과 상관관계를 보였고, 사회적 지지의 대부분의 항목과 삶의 질은 양의 상관관계를 보였으며, 특히 정보적 지지 항목이 삶의 질에 영향을 미치는 것으로 나타났다. 우울 및 불안은 삶의 질과 음의 상관관계를 보였고, 특히 우울 항목 중 긍정 정서 항목과 불안이 삶의 질에 실질적인 영향을 미치는 것으로 나타났다. 결론: 시설 거주 노숙인들을 위한 정서적 지지 프로그램을 개발하고, 시설에서의 자활 의지를 높이기 위한 전문적인 재활프로그램을 제공할 필요가 있다. 또한, 시설 거주 노숙인들이 지역사회 구성원들과 융합하여 살아가며, 최종적으로는 안전한 지역사회 정착을 위해 다양하고 지속적인 지역사회 참여 경험을 쌓도록 지원하는 것이 필요하다.

Objective: This study examined the impact of social support and mental health on the quality of life (QOL) of homeless people living in facilities. Methods: This study, which enrolled 85 homeless people living in facilities, was conducted from September 1, 2024, to October 31, 2024. General characteristics, social support, depression, anxiety, subjective memory complaints, and quality of life (QOL) measurements were assessed. Correlations were investigated using Pearson's correlation coefficients, and the impact of social support and mental health on QOL was analyzed using multiple regression analysis. Results: Subjective memory complaints correlated with physical decline in depression and anxiety. Most social support items were positively correlated with QOL, with informational support having the most significant impact. Depression and anxiety showed a negative correlation with QOL, particularly the emotions of depression and anxiety, which had a particularly strong impact on QOL. Conclusion: It is necessary to develop emotional support and professional rehabilitation programs for the homeless. In addition, it is necessary to support homeless people living in facilities to help them live in harmony with members of the community and gain experience with continuous community participation.

목적: 본 연구의 목적은 델파이 조사를 통해 뇌졸중 환자를 위한 인지행동치료 프로그램을 개발하고자 하는 것이다. 연구방법: 델파이 조사 기간은 2023년 3월부터 2023년 6월까지 였으며, 총 3차에 걸쳐 진행되었다. 전문가 구성은 정신보건계열 작업치료 임상경력 3년 이상인 자, 작업치료학과에서 정신사회 작업치료 관련 강의 및 연구 경험이 있는 교수들 중에서 10명을 선정하였다. 근거에 기반한 설문을 구성하기 위해 문헌고찰을 실시하였으며, 1차 델파이 조사는 반개방형 설문을 통해 얻은 전문가들의 답변을 바탕으로 적합한 항목을 추출하였다. 2, 3차 델파이 조사는 각 항목에 대한 적절성을 묻기 위해 리커트 4점 척도를 이용하여 표시하도록 하였으며, 취합된 값을 정리하여 항목별 평균, 표준편차, 내용타당도(Content Validity Ratio: CVR), 각 문항의 타당도(Item-level Content Validity Index: I-CVI), 안정도, 수렴도, 합의도를 산출하였다. 결과: 델파이 조사 결과 각 항목들의 최종 종합 평균은 3.60, 표준편차 0.48, CVR 0.96, I-CVI 0.98, 안정도 0.13, 수렴도 0.43, 합의도 0.77로 항목에 대한 타당도가 높은 것으로 나타났다. 본 연구 결과를 바탕으로 최종 선정된 인지행동치료 프로그램의 구성요소는 ‘인지행동치료에 대한 교육, 인지적 재구조화, 행동적 개입(이완 및 호흡훈련⋅사회기술 훈련⋅행동시행), 활동의 마무리’였으며, 총 16개의 관련 주제가 도출되어 각 주제별 프로그램을 제작하였다. 결론: 본 연구는 전문가들의 응답과 각 항목별 기준에 따라 최종 항목을 도출해 내었으므로 신뢰도와 타당도가 높고, 뇌졸중 환자를 위한 인지행동치료 프로그램의 첫 가이드라인을 제시했다는 것에 의의가 있다.

Objective: The study aim was to develop a cognitive behavioral therapy (CBT) program for stroke patients using a Delphi survey. Methods: Ten experts with experience in relevant lectures, research, and clinical practice were recruited for this study. A literature review was conducted to construct evidence-based survey items. For the 1st Delphi survey, suitable items were extracted based on responses from an expert panel obtained through a semi-structured survey. The 2nd and 3rd Delphi surveys were conducted to assess the appropriateness of each item. Results: Results of the Delphi survey for each item included a final mean of 3.60, standard deviation of 0.48, Content Validity Ratio (CVR) of 0.96, Item-level Content Validity Index (I-CVI) of 0.98, reliability of 0.13, convergence of 0.43, and consensus of 0.77, indicating high validity. The final components of the cognitive-behavioral therapy program were ‘education on cognitivebehavioral therapy, cognitive restructuring, behavioral interventions, and activity completion,’ Sixteen relevant topics were derived. Conclusion: This study is significant because it demonstrates the high reliability and validity of the final items and provides the first guidelines for a cognitive-behavioral therapy program for stroke patients.

Objectives : The purpose of this study was to investigate accident cases involving electronic assistive devices, to determine how these accidents can be avoided and to devise preventative instructions for the handicapped who use these devices. Methods : This study was carried out from July 20 to October 3, 2015. A consent-based survey was conducted via mail and mobile phones targeting 700 electronic assistive device users, of which questionnaires from 290 users were collected and used in the analysis. Results : Accidents involving electronic assistive devices were investigated, especially the causes of the accidents and accident prevention education, as well as the status of the electronic assistive devices. The most common accident types were collision and falling, and it was found that the victims of the accidents usually suffered severe injury to their lower limbs. Most users used electronic assistive devices every day but rarely wore a safety belt because of discomfort. There were more incidents of collision and falling for older aged handicapped users, and the injury rate to the lower limbs was highest in handicapped elderly aged 50 years or older. Conclusions : In order to prevent accidents with electronic assistive devices in the future, a or management organizations must prepare specific safety guidelines and manage these accidents.

This study was done on the basis that IT convergence-contents can help the elderly. The effects of IT convergence-contents were analyzed on the occupational performance of the elderly. This investigation was done with 100 elderly people above 65 years of age who lived in local community and two senior welfare centers in Busan and Kyeongbuk. The 100 elderly people were split into two groups of 50: the one group who has experience with IT convergence-contents was the experiment group, and the other group with no experience was the control group. In both groups, body functions, cognitive functions, activities of daily living and community participation were tested. The experimental group had higher scores for cognitive function, and activities of daily living than that of the control group. In conclusion, future studies can support continued IT convergence-contents at the local business community level rather than with smaller samples. This work lays the groundwork for follow-up studies to evaluate the effectiveness of IT convergence-contents.

This study implemented a health support network project to improve the quality of life of women with musculoskeletal disorders. These activities were intended to analyze the effects of the impact on the quality of life of women with musculoskeletal diseases, continuing to base their future needs for materials and practice so as to provide a method for this purpose. On August 19, 2013 through December, a survey of 320 people living in Seoul included 31 women with symptoms of musculoskeletal disorders. Another, 16 weeks led to a total of 127 people with housewives screened as a subjects for social support networks projects. After the research, the health support network project was implemented, and most musculoskeletal pain was reduced, depression levels were reduced, and a quality improvement was noted in health-related life activities. In particular, mental- health-related quality of life was found to increased. As incidental factors that may cause musculoskeletal disorders, marital status, living with family, low income, and a high depression index were related to low health-related quality of life. Future studies can support continued health at the local business community level rather than with smaller samples. This work can also be supported by follow-up studies to evaluate the effectiveness of program.

The purpose of this study is to analyze the correlation between cognition, depression and leisure activity in elderly people above 65 years of age, and to improve their health and quality of life by providing baseline data for occupational therapy intervention. This investigation was performed on 118 elderly people above 65 years of age who lived in local community and two senior welfare centers. In order to collect the data, we used MMSE-K, KDS, Questionnaire for leisure activity. The depression of elderly people was negatively correlated with their cognition(p<.01) and leisure activity(p<.001), whereas cognition was positively correlated with their leisure activity(p<.01). In conclusion, the correlation between cognition, depression and leisure activity of elderly people appeared statistically significant. Therefore, leisure activity program should be designed through additional research and effectively provided in nursing home and community senior welfare center to prevent depression increase and cognitive decline.

The thermal conductivity for the ground heat exchanger installed in the local facilities of greenhouse area at JangSu-Gun in Jeollabuk-Do was analyzed experimentally. For measuring the thermal conductivity of the ground heat exchanger, a bore hole was punched at the size of diameter 150mm, depth 160m. And a closed-type heat exchanger of high density polyethylene at the size of diameter 40mm was installed vertically. The heated water by an electric heater was circulated through the ground heat exchanger with a pump. The inlet/outlet temperatures and the flow rates of this water are measured and the thermal conductivity was calculated. The experimental results were as follows. The inlet/outlet temperatures of the ground heat exchanger were increased rapidly until 7 hours, then they were increased gently and the difference of inlet/outlet temperature was maintained at about 4.5℃. The thermal conductivity calculated by the line source theory was 2.207W/mK.

The purpose of this study was to investigate the effects of occupational therapy with collage on the visual perception and hand function for the children with mild mental retardation(MR). This study was held at P Developmental Center using 20 children with mild MR who received treatment for 12weeks. The two groups were divided into the group that participated in both the collage program and occupational therapy(2times per week, 1day collage, 1day occupational therapy) and the group that only received occupational therapy(2times per week, both times occupational therapy) 10 participants were randomly assigned to the two groups, The results showed that the study group increased in both visual perception and hand function(p<.05), while the control group only showed slight increases in hand function (p<.05). In conclusion, this study indicates that occupational therapy using a collage program increased the abilities of visual perception and hand function for children with mild MR.

The paper concerns numerical study of fully developed laminar flow of a Newtonian water and non-Newtonian fluids, 0.2% aqueous of sodium carboxymethyl cellulose(CMC) solution in eccentric annuli with combined bulk axial flow and inner cylinder rotation. Pressure losses and skin friction coefficients have been measured when the inner cylinder rotates at the speed of 0～200 rpm. A numerical analysis considered mainly the effects of annular eccentricity and inner cylinder rotation. The present analysis has demonstrated the importance of the drill pipe rotation and eccentricity. In eccentricity of 0.7 of a Newtonian water, the flow field is recirculation dominated and unexpected behavior is observed. it generates a strong rotation directed layer, that two opposing effects act to create two local peaks of the axial velocity. The influences of rotation, radius ratio and working fluid on the annular flow field are investigated.

The flow rate analysis for sanitary fixtures has been studied to determine the water supply piping system and size. The study has been carried out to analyze for a various water supply pressure and piping size theoretically. Also, the study has been carried out to analyze for a various water supply piping system experimentally. The water supply pressure is varied from 0.01MPa to 0.07MPa, and the piping size is varied from 6mm to 15mm. The water supply piping systems are one-to-one, all-loop-type, and bathroom-loop-type water supply piping system. The results indicate that the piping size is able to supply water fully in case of smaller than 15mm if the water supply pressure keep an necessary minimum pressure. And the gap of flow rate is very little for the various water supply piping systems

목적 : 이 논문의 목적은 운동 실행능력과 읽기, 쓰기에 바탕을 둔 시지각과의 관계를 알아보기 위함이다.연구방법 : 경남 김해에 위치한 초등학교에 재학 중인 1학년 아동 20명, 2학년 아동 20명을 대상으로 실시하였다. 시지각 능력 평가를 위하여 K-DTVP-2를, 운동실행능력을 평가하기 위하여 COMPS와 SIPT의 하위항목인 PrVC를 사용하였다. 결과 : 시지각과 운동 실행 사이에는 유의한 차이가 있었지만, COMPS, PrVC, K-DTVP-2 평가결과는 나이와 성별에서 차이가 없었다. K-DTVP-2는 PrVC와 COMPS와 관련이 있었다. VMI 점수는 2학년이 1학년보다 더 높았으며, 여기서 시각과 운동의 통합은 연령이 높아질수록 발달된다는 것을 알 수 있었다.결론 : 초등학교 1학년과 2학년의 시지각 능력은 운동 실행과 관련이 있었다. 그러나 이 연구에서는 몇 가지 제한점이 있었다. 첫째, 대상자가 김해에 국한되어 있으며, 둘째, 1학년과 2학년 사이의 연령차이가 없다는 것이다. 마지막으로 그 수가 적어서 특별히 다른 차이점을 발견할 수 없다는 것이다. 그러므로 향후에는 평균 데이터를 보여주기 위한 일정한 평가 기준이 마련되어야 할 것이며, 장애가 있는 아동의 운동 실행과 시지각과 관련된 연구가 지속적으로 이루어져야 할 것이다.

Objective : The purpose of this study was relationship with motor praxis and visual perception that based of reading and writing.Methods : Fourty children participated in this study, 20 of 1st grade and 20 of 2nd grade from elementary school in Kyungnam. We used of K-DTVP-2 for visual perceptual ability, COMPS and the PrVC of SIPT subtests for praxis.Results : There is a significant difference between visual perception and motor praxis, but there’s not a sig-nificant age and sex of COMPS, PrVC, K-DTVP-2. K-DTVP-2 was related with PrVC and COMPS. The score of VMI is that 2nd grade is higher than 1st grade, so we know the integration of visual and motor develops as the age gets higher.Conclusion : Visual perception was relationship with motor praxis in 1st and 2nd grades of elementary school students. But this study has some weak points. First, the children is just from Kim-hae. Second, there isn’t an age gap between 1st and 2nd grades. Lastly, there isn’t a significant difference because they are a few. So, there must be several evaluation standard to show norm data and the next step of study will be relationship with motor praxis and visual perception in handicapped children.

본 연구는 특성화 고등학생들의 지각된 부모양육태도, 부적응적 방어기제 및 만성적 지연행동과 진로미결정수준간의 관계를 알아보고자 하였다. 이를 위해 특성화 고등학교 2학년 631명을 대상으로 부모-자녀결합척도(PBI), 부적응적 방어기제척도, 만성적 지연행동척도, 진로미결정수준척도(CIS)를 사용하여 설문을 실시하였으며, 상관분석과 중다회귀분석을 위해 SPSS 12.0이 사용되었다. 연구 결과, 지각된 아버지의 돌봄, 과보호적 양육태도, 부적응적 방어기제와 만성적 지연행동은 진로미결정수준과 유의한 상관이 있었다. 그러나 어머니의 돌봄, 과보호적 양육태도는 진로미결정수준과 유의한 상관관계를 나타내지 않았다. 진로미결정수준에 영향을 가지는 요인으로 부적응적 방어기제의 하위변인인 미성숙 방어기제, 만성적 지연행동, 자기억제 방어기제 순이었다. 마지막으로 본 연구의 함의와 제한점, 및 후속연구의 필요성이 논의되었다.

The purpose of this study is to explore the relationships among perceived parenting behaviors, maladaptive defense, chronic procrastination, and career indecision level of specialized high school students. For the purposes, the parental bonding instrument scale maladaptive defense style questionnaire, chronic procrastination scale, and career indecision level scale are measured for 631 specialized high school students(255 boys, 376 girls) in Jellabukdo, Korea. SPSS 12.0 was used for implementing a correlation and multiple regression analysis. As a result of analysis, the father's parenting behaviors(care and overprotection) are related to career indecision level. But mother's parenting behaviors don't show significantly meaningful correlation with career indecision level. The maladaptive defense (immature, self-inhibiting defense style) and chronic procrastination are related to career indecision level. The findings contribute to our understanding of the use of immature defense, chronic procrastination, and self-inhibiting defense for the career indecision level of vocational high students. Implication and limitations of these results and the suggestions for further researches were also discussed.

In this paper, abnormal noise and vibration occurring in the propulsion shaft system of a naval ship were measured, and the methods and procedures for the cause analysis based on the results were discussed. To investigate the cause, in this study, accelerometers were attached to the bearings supporting the shaft to measure the vibrations. The analysis revealed that the abnormal vibration on the port side was most strongly identified at the stern tube bearing, and it was confirmed that these vibrations exhibited ultra-high frequency(20,000 Hz ~) characteristics. Additionally, through DEMON analysis, it was confirmed that this characteristic appeared in synchronization with rotation of the shaft. In this paper, it is assumed that the cause of theses ultra-high frequency vibration has been generated by stress waves resulting from processes such as grinding, scratching and impact. Furthermore, directions for inspection of the stern tube bearing are proposed.

In this study a methodology to evaluate fatigue life of the electronic parts for the fighter radar unit under random vibration loading is presented. To do this, one parameter for the 3-σ RMS quation of Steinberg fatigue model is modified to come up with a printed circuit board(PCB) with multiple electronic parts, while fundamental frequency and dynamic deflection of the PCB are calculated from a MATLAB based finite element computer code. For the RIFA structure selected in this study, the 3-σ RMS fatigue limit displacement is reduced to 0.741 times as much as the Steinberg model. This investigation allows to assess the life of multiple electronic parts mounted on the PCB with reinforced metal cover/body showing non-sinusoidal deflection patterns.

본 연구는 장애아동을 둔 부모를 대상으로 작업수행능력과 여가만족도, 양육스트레스를 알아보고, 작업수행능력과 여가만족도가 양육스트레스에 어떠한 영향을 미치는지 알아보고자 하는데 목적이 있다. 자료수집 기간은 2017년 1월 10일부터 2017년 2월 17일까지였으며, 설문지 72부를 분석에 이용하였다. 연구도구는 구조화된 설문지로서 일반적인 특성을 묻는 문항, 양육스트레스 측정도구, 작업수행능력 측정도구, 여가만족을 묻는 측정도구를 사용하였다. 연구결과 장애아동의 일반적 특성에 따른 양육스트레스는 장애아동이 여자이며, 연령이 8~12세인 학령기인 경우, 장애유형이 발달장애와 지적장애인 경우, 장애등급이 1, 2급인 경우, 치료기관이 병원과 사설치료기관인 경우 높게 나타났다. 장애아동 부모의 작업수행능력, 양육스트레스, 여가만족과의 상관관계를 살펴본 결과 서로 유의미한 상관관계를 보였다. 장애아동 부모의 양육스트레스에는 작업수행능력 항목 중 작업, 사회적 통합, 경제적 자립과 여가만족도가 영향을 미치는 것으로 나타났다. 본 연구 결과들은 장애아동 부모의 양육 스트레스 중재를 위한 기초자료로 활용될 수 있을 것이다.

The purpose of this study was to investigate the effects of occupational performance ability and leisure satisfaction on parenting stress in parents with disabled children. The data collection period was from January 10, 2017 to February 17, 2017, and 72 questionnaires were used for analysis. The research tool was a structured questionnaire which comprised the following components: general characteristics questionnaire, parenting stress measurement tool, occupational performance ability tool, and leisure satisfaction questionnaire. The results of this study were as follows. The general characteristics of children with high parenting stress were as follows: female, age 8-12, developmental and intellectual disability, disability grade 1 and 2, in the case of private treatment institutions. There was a significant correlation between parental occupational performance ability, parenting stress, and leisure satisfaction. Occupation, social integration, and economic independence, and leisure satisfaction were the factors influencing parenting stress. The results of this study can be used as basic data for the parenting stress intervention of parents with disabilities.

Objectives: 본 연구의 목적은 방문요양 요양보호사들의 세부업무 영역별 특성이 근골격계통증에 미치는 영향을 알아보고, 요양보호사들의 근골격계통증을 경감시키는 방안을 마련하고자 하는 것이다. Methods: 본 연구는 P시에 위치한 C, K 재가센터 소속 요양보호사 192명을 대상으로 실시하였다. 대상자들에게 근골격계통증척도와 요양보호사의 세부업무에 대한 작업부담체크리스트를 작성하게 한 후, 수집된 자료를 SPSS 21.0 프로그램을 이용하여 분석하였다. Results: 요양보호사의 근골격계통증 자각증상 정도를 보면, 허리통증과 어깨통증의 수치가 가장 높았다. 세부업무 영역별 특성이 근골격계통증에 미치는 영향을 알아본 결과, 신체수발영역의 '식사수발하기, 이동지원하기, 목욕지원하기, 체위변경하기, 건강관리영역의 '물리치료보조하기, 욕창관리하기', 시설환경 관리영역의 '청소 및 세탁물관리'가 영향을 미치는 것으로 나타났다. Conclusion: 요양보호사들은 거동이 불편한 대상자들을 이동시키거나 체위를 변경하는 동작 등 신체적으로 무리가 가중되는 환자의 비율이 높아 신체 하중을 가장 많이 받는 허리와, 어깨의 통증을 일으킬 우려가 매우 높다. 이에, 요양보호사들에게 통증이 주로 발생할 수 있는 부위의 과부하를 줄여줄 수 있는 인체역학적 자세에 대한 교육이 필요하다. 그리고 위험한 업무에 대해서는 장비 및 인력의 지원이 제공 되어야 할 것이며, 지속적으로 다각적 차원의 사회적 지원이 필요할 것이다.

Objectives: This study aimed to determine the effects on musculoskeletal symptoms of both social demographic features and detailed characteristics of each task category of care workers who offer visiting home-help services. And to establish the measures that can reduce musculoskeletal symptoms among care workers. Methods: This study was conducted among 192 care workers from welfare centers C and K located in city P. After participants completed the task burden checklist regarding the scale of musculoskeletal symptoms and the details of their duties, the data collected were analyzed using the SPSS 21.0 program. Results: According to the degree of observable musculoskeletal symptoms in care workers, the highest figures were observed for back and shoulder pain. Based on the results of assessing the effect of detailed task category characteristics on musculoskeletal symptoms, "helping patients eat, helping patients move, helping patients bath, and changing body positions" were found to have an effect from the physical care category, "providing physical therapy assistance, treating bedsores" from the health care category, and "cleaning and doing laundry" from the facility management category. Conclusions: Due to the high proportion of patients requiring burdensome physical labor from care workers such as moving patients who have trouble doing so on their own, helping them change positions, and so on, it is highly likely that pain will occur in the low back, which carries most of the physical weight. So, education on human epidemiological positions that can reduce overload on areas prone to pain such as the low back and shoulders is essential. Proper equipment and personnel support must be provided for dangerous tasks. Further, multidimensional social support is required consistently.

본 연구는 국내 장애인보조기구 수리서비스에 대한 현황 및 만족도를 파악하여 수리서비스에 대한 문제점을 알아보고 이를 바탕으로 하여, 효과적인 발전방안을 알아보고자 하는데 그 목적이 있다. 설문조사는 2015년 7월부터 2015년 10월까지 전국에 있는 장애인 750명을 대상으로 시행하였고, 최종 회수된 280부를 분석하였다. 수리의뢰가 많았던 품목은 대부분 이동보조기구였으며 수리 의뢰는 대부분 구입업체와 장애인 보조기구 전문 수리기관에서 시행되었다. 만족도 조사에서 일부 불만족의 사유로는 수리기간이 길고 수리 접수 및 절차의 복잡성으로 나타났다. 장애인보조기구 수리서비스 활성화를 위한 중앙정부의 역할로는 수리지원사업에 대한 홍보 확대, 수리지원 대상품목 및 지원금액 기준마련, 장애인보조기구 수리를 위한 법적 체계 마련이 매우 필요하다는 의견이 많았다. 보다 효과적이고 체계적인 장애인보조기구 수리서비스를 제공하기 위해서는 수리서비스 절차의 체계 확립, 시장가격을 반영한 부품별 수리단가 제시 등이 마련되어야 할 것이다.

The purpose of this study is to investigate the satisfaction with repair service of assistive technology devices for the disabled and the current state of the service, find the problems of the repair service, and to seek an effective development plan. This study had been conducted from July to October, 2015, with 750 disabled, and 280 completed questionnaires were returned and analyzed. Among assistive technology devices, the devices that required repair most were mobility devices. Repair was made mostly in purchase agencies and the repair institute. In the satisfaction survey, the causes for somewhat dissatisfaction were long repair time and complicated repair application and procedure. With regard to the central government's roles to active repair service for assistive technology devices, it was found that it was very necessary to expand the promotion of repair support business, come up with the criteria about repair support items and support amount, and establish the legal system to repair assistive technology devices. Therefore, in order to provide more effective and systematic repair service for assistive technology devices, it will be necessary to establish repairing process of assistive technology devices and standardization of costs that repair assistive technology devices.

본 연구는 이중과제 훈련이 만성기 뇌졸중 환자들의 균형 능력 및 상지기능에 미치는 효과를 알아보고자 실시되었다. 경상북도 A병원에 내원한 뇌졸중 17명을 대상으로 하였으며, 이중과제 훈련은 전 후 평가를 제외한 총 4주 동안 주 5회 30분씩 실시하였다. 평가도구는 버그균형 척도(Berg Balance Scale), BTS FreeEMG 300(BTS FreeEMG 300, BTS, Italy)이 사용되었다. 연구 결과 이중과제 훈련 실시 전에 비하여 실시 후 만성기 뇌졸중 환자들의 BBS 점수에서 유의미한 변화가 나타났고(p<.05), CCR값에서도 어깨 및 팔꿈치 관절 동작 모두에서 음의 값이 나타나 긍정적인 변화가 있었다. 본 연구의 결과로 볼 때 이중과제 훈련이 만성기 뇌졸중 환자들의 균형 능력 및 상지기능 향상에 긍정적인 효과의 가능성을 확인할 수 있었다.

The aim of this study was to investigate the effects of dual-task training on balance and upper extremity function with chronic stroke. For seventeen persons with chronic stroke, we executed dual-task training for 4 weeks, five times per week, and 30 minutes each time. Before and after the dual-task training, the patients were tested with Berg Balance Scale(BBS) and BTS FreeEMG 300(BTS FreeEMG 300, BTS, Italy). After the dual-task training, the subjects showed significant changes in the score of BBS(p<.05). And, the subjects' shoulder and elbow movement had negative values of change after the intervention, indicating that there was a positive change. The results of this study show that dual-task training for persons with chronic stroke is a useful therapeutic approach by enhancing the their quality of life through improving balance and upper extremity function.

본 연구는 할론 계열의 소화약제를 대체할 수 있는 청정소화약제인 질소가스를 생산하는 산업용 질소발생기를 사용하여 임의 방호구역에 대한 질소발생기의 방사압력에 따른 방사량을 결정할 수 있는 상관관계식을 실험적으로 결정하였다. 질소발생기의 방사량을 결정할 수 있는 상관관계식을 결정하기 위하여 간단한 방호구역을 제작하여 소형 질소발생기에서 발생하는 질소가스의 방사압과 방사량을 변화시키며 방호구역 내의 산소농도 변화를 실험적으로 파악하였다. 실험결과를 가지고 무유출인 경우 임의 방호구역에 대한 소화약제 방사량과 산소농도와의 관계를 정의한 이론식에 대하여 실험한 산소농도와의 차이를 분석하여 실험결과에 가장 근접하는 상관관계식을 결정하였다. 결정한 상관관계식은 임의 방호구역, 방사압력 및 방사량에 대하여 실험하여 검증한 결과 비교적 잘 일치하였다. 따라서 본 연구를 통하여 결정된 상관관계식을 이용하여 임의 방호구역에 대한 질소발생기의 방사량을 결정할 수 있는 방사량 결정 선도를 완성하였다.

An experimental study has been carried out to determine the flow rate for a feasible N2 generator to extinguish the fire, and this study analogized the correlations to determine the flow rate for $N_2$ generator considered an Oxygen concentration, protected enclosure, discharging pressure and discharging time. We manufactured simple protected enclosure for analyzing fire-extinguishing performance of the $N_2$ generator. As a $N_2$ gas is exhausted on protected enclosure, a various of Oxygen concentration is measured to analyze fire-extinguishing performance experimentally. The correlations determined as an uncertainty analysis for the Oxygen concentration deviations of the theoretical and experimental value. The analogized correlations is Q = (21 $\times$ V)/($O_2+{\zeta}{\cdot}P$)-V. In case of $300m^3$ protected enclosure, 0.8 MPa discharging pressure and $40m^3$/min $N_2$ flow rate, the Oxygen concentration is decreased below 15% within 3 minutes.

질문(Question)과 답변(Answer)을 하는 커뮤니티 기반의 지식검색서비스에서는 질의를 통해 원하는 답변을 얻을 수 있지만, 수많은 사용자들이 참여함에 따라 방대한 문서 속에서 신뢰성있는 문서를 찾아내는 것은 점점 더 어려워지고 있다. 지식검색서비스에서 기존 연구는 사용자들이 생성한 데이터 즉 추천수, 조회수 등의 비텍스트 정보를 이용하거나 답변의 길이, 자료첨부, 연결어 등의 텍스트 정보 이용하여 문서의 품질을 평가하고, 이를 검색에 반영하여 검색성능을 향상시키는 데 활용했다. 그러나 비텍스트 정보는 질의/응답의 초기에 사용자들에 의해 충분한 정보를 확보할 수 없는 단점이 있으며, 텍스트 정보는 전체의 문서를 답변의 길이, 연결어등과 같은 일부요인으로 판단해야하기 때문에 품질평가의 한계가 있다고 볼 수 있다. 본 논문에서는 이러한 비텍스트 정보와 텍스트 정보의 문제점을 개선하기 위한 QualityRank 알고리즘을 제안한다. QualityRank는 텍스트/비텍스트 정보와 소셜 네트워크 분석 기반의 사용자 중앙성을 고려하여 질문에 적합하고 신뢰성 있는 답변을 랭킹화 한다 실험결과 제안한 알고리즘을 사용했을 경우 텍스트/비텍스트 모델 보다 랭킹성능에 있어 향상된 결과를 얻을 수 있었다.

We can get answers we want to know via questioning in Knowledge Search Service (KSS) based on Q&A Community. However, it is getting more difficult to find credible documents in enormous documents, since many anonymous users regardless of credibility are participate in answering on the question. In previous works in KSS, researchers evaluated the quality of documents based on textual information, e.g. recommendation count, click count and non-textual information, e.g. answer length, attached data, conjunction count. Then, the evaluation results are used for enhancing search performance. However, the non-textual information has a problem that it is difficult to get enough information by users in the early stage of Q&A. The textual information also has a limitation for evaluating quality because of judgement by partial factors such as answer length, conjunction counts. In this paper, we propose the QualityRank algorithm to improve the problem by textual and non-textual information. This algorithm ranks the relevant and credible answers by considering textual/non-textual information and user centrality based on Social Network Analysis(SNA). Based on experimental validation we can confirm that the results by our algorithm is improved than those of textual/non-textual in terms of ranking performance.