• Proceedings of the KIEE Conference
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• 2006.07d
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• pp.1761-1762
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• 2006

지금까지 원전 계측제어계통은 안전을 위한 보수적인 설계기준을 적용하여 아날로그 기기를 사용하여 설계되었다. 그러나 최근에는 아날로그 기기의 생산 중단으로 기기 및 장비의 예비품 조달에 어려움을 겪게 되었고, 점차 복잡하면서도 편리한 기능에 대한 사용자 요구로 인해 디지털 기기의 사용이 확대되고 있는 추세이다. 프로그램 가능한 논리제어기 (Programmable Logic Controller:PLC)는 기존의 산업체에서 널리 사용되고 있지만, 높은 수준의 안전성 기준 때문에 일부 극소수의 PLC만이 원자력에 적용되고 있는 실정이다. 최근 국내에서도 원전 안전등급의 보호, 제어 및 감시계통에 디지털 기기의 적용을 위해 많은 노력을 하고 있다. 원전 계측제어계통의 디지털화는 부품 단종 및 설비 노후화 문제 등을 해결할 수 있는 장점이 있는 반면에 디지털화로 인한 새로운 안전 현안이 제기될 수 있다. PLC를 기반으로 하는 원전 계측제어계통은 안전등급의 보호, 제어 및 감시 기능을 수행하게 되므로, 고신뢰도 소프트웨어 적용등의 안전계통 개발에서 요구하는 요건을 만족해야 한다. 따라서 상용 또는 신규 개발되는 PLC를 사용하여 발전소보호계통을 구현할 경우에 적용 가능한 기술기준 및 계통요건이 필요하다. 본 논문에서는 발전소보호계통에 적용하기 위한 PLC 평가 항목을 개발하고, 각 부분별 평가 항목에 대해 소개한다.

• 한국IT서비스학회:학술대회논문집
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• 2009.11a
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• pp.188-197
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• 2009

최근 비즈니스 환경이 빠르게 변화함에 따라 기업의 민첩한 대응이 요구되고 있으며, 서비스지향 아키텍쳐(Service-Oriented Architecture(SOA))가 유력한 대안으로 제시되고 있다. SOA는 서비스를 공유하고 재사용 할 수 있도록 정보시스템을 구축하는 소프트웨어 설계 방법론으로써, 급변하는 비즈니스 환경에 맞도록 민첩한 대응이 가능하도록 한다. 이러한 SOA의 장점으로 인해 현재 많은 기업에서 SOA를 이용한 시스템 개발을 진행하고 있다. 그러나, 이러한 SOA를 적용한 시스템 개발 노력이 계속 시도되고는 있지만 SOA기반의 표준화된 방법론은 아직 정립되지 않은 실정이다. 따라서, SOA를 이용한 시스템 개발은 현재 많은 어려움에 직면하고 있다. 본 논문에서는 표준화된 방법론으로써 온톨로지 기반의 SOA 개발방법론을 제시한다. 제안하는 방법은 온톨로지를 이용하여 서비스를 서비스 프로파일과 서비스 모델로 구분하여 정의하여 서비스 식별을 위한 기본 프레임워크를 제시한다. 또한 식별된 서비스들을 온톨로지 개념을 이용하여 검색, 재사용 할 수 있는 방법론을 제시하여 서비스 재활용도를 높일 수 있도록 한다. 본 논문에서 제안하는 온톨로지 기반의 SOA 개발 방법론은 현재 사용중인 다른 개발방법론과 비교 분석하였다. 비교 결과 본 논문에서 제안하는 온톨로지 기반 SOA 개발방법론은 현재까지 제안된 다른 방법보다 효율적이고 체계적인 개발 결과를 제공하는 것으로 나타났다. 본 논문에서 제안하는 연구 결과는 SOA에 표준방법론의 개발의 기반을 제공하여, 서비스의 의미론적 접근에 대한 시도 등 향후 연구에 중요한 방향성을 제공할 수 있을 것으로 기대 된다.

• The Journal of the Korea Contents Association
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• v.17 no.9
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• pp.32-38
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• 2017

In this study, we introduce a new way to improve the efficiency of Gait Analysis and promote its usage. This program can be shown in different points of view such as an individual or group patient data. The 'Gate Data Visualization Program' is improving its efficiency by minimizing the margin of error during research and promoting the easy interpretation. In addition, this program is designed to have an easy access, and can be used to develop the most basic medical equipment program to predict a probable disease for patient by collaborating with physicians specializing in neurosurgery.

• Therapeutic Science for Rehabilitation
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• v.9 no.4
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• pp.55-67
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• 2020

Objective : This study aimed to understand the burnout experience of hospital occupational therapists through phenomenological research. Methods : We conducted in-depth interviews with 6 occupational therapists working at hospital for 8 weeks. The data were analyzed using the Palangsae 2.0 software to derive meaning through the process of transcription and data entry, coding, and topic creation. Results : From the collected data, 14 sub-themes, 9 theme clusters, 3 categories were identified. The cause of burnout was confirmed as being due to therapy-related work and workplace conditions. The impacts of burnout on individual life were psychological in nature and also included being an adverse, influence on others. The coping strategies to deal with burnout were enrichment of personal life, self-awareness and philosophy, conscious approach, social support, and setting new goals for life. Conclusion : We suggest that spontaneous efforts are needed by occupational therapists in order to alleviate the conflicts of job identity. In addition, organizational regulations and programs and the establishment of horizontal organizational cultures are required to overcome and prevent burnout of occupational therapists.

• Journal of rehabilitation welfare engineering & assistive technology
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• v.10 no.1
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• pp.37-45
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• 2016

The purpose of this study was to assess the intra-rater, inter-rater and test-retest reliability and validity of frontal plane lower extremity alignment estimated from a rasterstereographic method using ABW-Mapper. Eighteen subjects participated in this study. The S angle (stereographic angle-frontal plane lower extremity alignment estimated from a rasterstereographic method) in standing was measured throughout the two sessions with one week interval by two different readers. In the first session, a reader measured S angle twice per subject with a short break in-between. The Q-angle (quadriceps angle) was measured using a standard goniometer from a photography taken through digital camera with the participant standing in the same position as in the S angle measurement. The HKA(hip-knee-ankle) angle was measured from a computer based digital radiograph with the computerized measurement software. Reliability was tested using intraclass correlation coefficients(ICC). Validity was tested using a Pearson's correlation coefficient. Excellent intra-rater(ICC=0.956~0.974), inter-rater(ICC=0.962), test-retest reliability (ICC=0.945) were demonstrated. There were strong negative correlations between S angle and Q-angle (r=-0.739), and between S angle and HKA angle (r=-0.702). Therefore, the S angle measured using a rasterstereographic mapper may be used to as a preliminary or supplementary tool to evaluate and study LE alignment in the frontal plane in relation to HKA angle or Q-angle.

• 재활복지
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• v.20 no.4
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• pp.157-175
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• 2016

The purpose of this study was to analyze the perceptions of disabled sports that were reported the newspapers using semantic network analysis method. for this purpose, 745 news articles were selected from 21 source in Naver news searching engine. The main keyword for searching on newspapers was 'disabled sports'. Krkwic software was used for keyword cleansing and co-occurrence of text to text matrix in frequencies. Centrality indices that are degree, between and eigenvector, were used to analyze the perceptions of disabled sports from Netminer 4.0 for semantic network analysis. The conclusion of overall results from this study are follows; First, the core keyword of disabled sports in newspapers are 'impression', 'challenge', 'festival', 'dream' and hope. And there is different concepts of cognition among types of disability. Second, there are two elements on the perceptions of disabled sports from reported newspapers; sports performance and emotional. Specifically, main stream of keyword were 'Paralympics' and 'Special Olympics' on sports performance element and 'impressive' and 'challenge' in emotion element.

• Therapeutic Science for Rehabilitation
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• v.10 no.2
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• pp.37-51
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• 2021

Objective : The purpose of this study was to analyze non-invasive treatments and drooling assessment methods in children with cerebral palsy and developmental disabilities, who drool. Methods : This study searched two hundred papers published in 2005-2019. Forty-four papers were selected based on their abstract and title, and ten papers were finally selected following a secondary search. Results : The PEDro Scale of the selected papers was high with an average of seven points. As a result of analyzing the overall trends, the study participants were primarily patients with cerebral palsy, and recently, the therapeutic intervention of oral sensory exercise was more actively studied than behavioral modification. Studies of behavioral modification and oral sensory exercise intervention methods were found to have differences in participant age and, cognitive level, number of participants, research design, treatment time, and duration. Studies to confirming the frequency and severity of the drooling measurement method were found to be the main factor. Conclusion : This study analyzed typical behavioral modification and oral sensory exercise interventions as examples of non-invasive therapeutic interventions for children with cerebral palsy and developmental disabilities and provided information to help select appropriate therapeutic intervention methods when planning non-invasive therapy using behavioral modification and oral sensory exercise therapy.

• Therapeutic Science for Rehabilitation
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• v.11 no.4
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• pp.23-39
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• 2022

Objective : To summarize clinical and demographic variables and machine learning uses for predicting functional outcomes of patients with stroke. Methods : We searched PubMed, CINAHL and Web of Science to identify published articles from 2010 to 2021. The search terms were "machine learning OR data mining AND stroke AND function OR prediction OR/AND rehabilitation". Articles exclusively using brain imaging techniques, deep learning method and articles without available full text were excluded in this study. Results : Nine articles were selected for this study. Support vector machines (19.05%) and random forests (19.05%) were two most frequently used machine learning models. Five articles (55.56%) demonstrated that the impact of patient initial and/or discharge assessment scores such as modified ranking scale (mRS) or functional independence measure (FIM) on stroke patients' functional outcomes was higher than their clinical characteristics. Conclusions : This study showed that patient initial and/or discharge assessment scores such as mRS or FIM could influence their functional outcomes more than their clinical characteristics. Evaluating and reviewing initial and or discharge functional outcomes of patients with stroke might be required to develop the optimal therapeutic interventions to enhance functional outcomes of patients with stroke.

• Therapeutic Science for Rehabilitation
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• v.10 no.4
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• pp.53-63
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• 2021

Objective : This study aimed to develop a Korean version of the Flow State Scale for Occupational Task (K-FSSOT), to measure the level of a flow experience of a subject in occupational therapy activities. Methods : To develop a measure of K-FSSOT, validity and reliability were verified through a systematic development process. The validity was verified by calculating the content validity index (CVI) through the content validity of 10 occupational therapists and a question-and-answer survey of 20 patients. Reliability was verified by investigating the internal consistency and examination-re-test reliability of 33 patients. Results : The item-CVI for each question in the content feasibility study was .90 to 1.00, and the scale-CVI, which is the average of the whole item, was found to be appropriate at .97. The verification of reliability indicated that the intrinsic value of the entire question was high at .855, and the test-retest reliability value was high at .894 (p<.01), showing a high correlation, and very high reliability. Conclusion : K-FSSOT could be used as a useful tool to measure the level of a flow experience of the target in performing occupational therapy activities for occupational therapists concerned about the participation and flow experience of the target.

• Therapeutic Science for Rehabilitation
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• v.12 no.2
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• pp.55-68
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• 2023

Objective : This study aims to analyze the effects of visual perception intervention by systematically reviewing the studies that applied visual perception intervention to children with cerebral palsy. Methods : The databases used were PubMed, EMbase, Science Direct, ProQuest, Koreanstudies Information Service System (KISS), Research Information Sharing Service (RISS), and the National Assembly Library. The keywords used were cerebral palsy, CP, and visual perception. According to the PRISMA flowchart, 10 studies were selected from among studies published from January 1, 2012 to March 30, 2022. The quality level of the selected studies, the demographic characteristics of study participants, the effectiveness of interventions, area and strategies of intervention, assessment tools to measure the effectiveness of interventions, and risk of bias were analyzed. Results : All selected studies confirmed that visual perception intervention was effective in improving visual perception function. In addition, positive results were shown in upper extremity function, activities of daily living, posture control, goal achievement, and psychosocial areas as well as visual perception function. The eye-hand coordination area was intervened in all studies. Conclusion : In visual perception intervention, It is necessary to evaluate the visual perception function by area, and apply systematically graded customized interventions for each individual.