GA와 심층신경망을 이용한 변전소의 고장복구지원 알고리즘

홍재영(Jae-Young Hong),이경민(Kyung-Min Lee),박철원(Chul-Won Park) 대한전기학회 2021 대한전기학회 학술대회 논문집 Vol.2021 No.7

지적장애학교 초임 전맹교사의 교직 적응과정에서 나타난 갈등

홍재영 ( Hong Jae-young ) 대구대학교 한국특수교육문제연구소 2018 특수교육저널 : 이론과 실천 Vol.19 No.2

This study aimed to examine the experiences of newly appointed teachers with visual impairments working at a school for students with intellectual disabilities. It also intended to discover the conflicts they went through in the adaptation process of their teaching profession. To achieve these purposes, this study utilized a qualitative case study methodology based on the theoretical perspective of symbolic interactionism under the constructionist epistemology. The study participants were four newly appointed teachers with visual impairment working at a school for students with intellectual disabilities; they were selected using snowball sampling. To investigate the participants' experiences, they were interviewed and relevant data were collected. Inductive analysis on the collected data was made with the NVivo 11 program. According to the analysis results, newly appointed teachers with visual impairment who worked at a school for students with intellectual disabilities experienced conflicts with other members and their surroundings, consideration and exclusion, conflicts during their classes, hopelessness, and internal conflict, such as identity confusion. The results of this study will provide basic data on policy measures that could improve expertise of newly appointed teachers with visual improvement working at a school for students with intellectual disabilities, supporting their adaptation to the teaching profession.

시각중복장애아동의 신체활동을 촉진하는 생태학적 교수절차와 생태학적 평가도구의 구성요소 탐색

홍재영 ( Jae Young Hong ),한성희 ( Seong Hee Han ) 대구대학교 한국특수교육문제연구소 2008 특수교육저널 : 이론과 실천 Vol.9 No.2

This study set out to explore ecological teaching procedures to promote the efficient physical activities of children who have visual impairment with other disabilities during physical education classes based on the previous studies on ecology. It also aimed to identify the components and contents of ecological assessments within a classroom environment designed for ecological teaching. It is necessary to apply ecological teaching procedures that take into account the external environmental factors around children with visual impairment as well as the personal factors of children who have visual impairment with other disabilities in order to promote their active participation in PE classes and physical activities. Considerate teaching activities such as these will be able to contribute to the teachers changing their teaching actions, and the changes will in turn encourage children who have visual impairment with other disabilities to take active part in PE classes and more diverse physical activities. That is, a teaching approach from a new perspective called ecological teaching should be applied in order to improve teaching and learning activities and to promote such physical activities as are proper in accordance with the degree of disability and motor skills of children who have visual impairment with other disabilities. Then those children will be able to understand the concepts of movement, establish a right body image, develop interest in physical activities, and have an attitude of taking an active part in PE activities. Those changes will ultimately provide them with the foundation to lead a functionally independent life in their community after completing their school education. There is also a need to develop informal assessment tools using evaluative components following the ecological approach and conduct research to confirm their validity. Such research will produce basic data to promote the efficient physical activity of children who have visual impairment with other disabilities.

체육수업에서 시각중복장애아동의 신체활동 촉진을 위한 생태학적 수업평가 도구의 타당화 연구

홍재영 ( Jae Young Hong ),한성희 ( Seong Hee Han ) 대구대학교 한국특수교육문제연구소 2008 특수교육저널 : 이론과 실천 Vol.9 No.4

In this study, a psychometric test was conducted of an ecological teaching assessment tool that could be applied to physical education classes to facilitate the physical activities of children who had visual impairment with other disabilities. A review of the related literature identified the components of such a tool that should be taken into account when trying to promote the physical activities of those children during physical education classes. The investigator developed specific criteria of the tool to be applied in school and tested the validity and reliability of the items. Thus data were gathered from 104 teachers who taught children who had visual impairment with other disabilities before. Factor analysis was then carried out to examine the construct validity. The analysis results reveal that the ecological teaching assessment tool consisted of 36 items of five factors, which include tasks, teaching, teaching aids, personal environment, and physical environment. As for reliability, the coefficient of internal consistency (Cronbach α) was .969. Judging fromthe factor loading of the tool``s items, the correlation coefficient between each item and the overall points, and the coefficient of internal consistency, the developed ecological teaching assessment tool was valid and reliable. Thus it is expected that when put to use during physical education classes, the tool will serve as a useful material to promote the efficient physical activities of children who have visual impairment with other disabilities. There is also a need to do follow-up studies to monitor such expected effects.

시각동기 페이저 데이터를 이용한 재생발전원 분석

홍재영(Jae-Young Hong),이경민(Kyung-Min Lee),권영수(Young-Su Kwon),박남주(Nam-Joo Park),윤부현(Boo-Hyun Yun),박철원(Chul-Won Park) 한국조명·전기설비학회 2019 조명·전기설비학회논문지 Vol.33 No.11

In recent years, solar and wind power have been determined to be the main generation sources of power system. Therefore, it is expected that the power system capacity of RES(Renewable Energy Sources) with volatility will increase. Accordingly, there is a need for system planning, monitoring, and operation of a RES linked power system using precise real-time data rather than conventional SCADA based data. This paper is a part of the development of the real-time monitoring/analysis/control system for the new and renewable power sources installed for the monitoring and analysis of Gangwon region where the grid connection capacity is increasing. First, we briefly introduce the software of GPS-based time-synchro phasor-based monitoring and analysis system installed in Gangwon region. The file processing of the collected PMU data is described. Finally, we will analyze the power system effect of RES linked to Gangwon region using time-synchro phasor data.

변전소 고장복구를 위한 적합도 함수에 관한 연구

홍재영(Jae-Young Hong),박철원(Chul-Won Park) 한국조명·전기설비학회 2020 조명·전기설비학회논문지 Vol.34 No.4

In order to reduce blackout recovery time and economic losses, intelligent methods for substation rapidly fault recovery are required. Genetic Algorithm is one of the approaches to solving optimization problems. In this paper, we will study on the fitness function for applying the genetic algorithm for substations recovery. First, the theory(principle) of genetic algorithm is introduced, and then the SOP (Standard Operation Procedure) of the substation is reviewed. A fault recovery algorithm for substation using fitness functions to transformer capacity, DS (Disconnector) switching, transformer and D/L (Distribution Line) is proposed. Finally, the performance of the proposed GA-based fault recovery algorithm is evaluated through several simulation.

시각장애학교 초임 미술교사의 경험에 대한 내러티브 탐구

홍재영(Hong jae young) 학습자중심교과교육학회 2018 학습자중심교과교육연구 Vol.18 No.14

The purposes of the study were to scrutinize the experience a new art teacher went through at her beginning stage at a school for the visually impaired and to investigate how she formed and developed her personal and practical knowledge needed for her art class over time. A Narrative method was adopted and one newly appointed female art teacher at a school for the visually impaired participated for the study. The experience she went through at her first school was analyzed through a series of interviews. The results of the study suggest that she began her teaching career experiencing ‘anxiety and fear,’ ‘uncertainty,’ ‘confusion’ and ‘trial and error.’ As time passes by, she made various efforts to improve her classroom instruction. Personal and practical knowledge needed for her career was accumulated as she experienced feelings of ‘certainty,’ ‘confidence,’ ‘interest and fun’ and ‘delight.’ Based on these feelings, she seemed to have found that she felt herself becoming more professionally confident as an art teacher. This study is expected to provide basic data for planning future professionalism enhancing programs for both newly appointed teachers of schools for the visually impaired and new teachers for the common curriculum in special education.

UMTS에서 패킷 데이터 서비스를 위한 Relocation 성능 개선 방법

홍재영(Jae-Young Hong),최훈(Hoon Choi) 한국통신학회 2001 한국통신학회 학술대회논문집 Vol.2001 No.11

DC Microgrid의 단락사고 비교

김노영(Noh-Young Kim),김윤수(Yoon-Su Kim),류호용(Ho-Yong Ryu),이종범(Jong-Bum Lee),이경민(Kyung-Min Lee),홍재영(Jae-Young Hong),정종운,박철원(Chul-Won Park) 대한전기학회 2020 대한전기학회 학술대회 논문집 Vol.2020 No.7

시각중복장애인의 평생교육 실태 및 요구

김두영 ( Doo Young Kim ),김호연 ( Ho Yeon Kim ),홍재영 ( Jae Young Hong ) 대구대학교 한국특수교육문제연구소 2014 특수교육저널 : 이론과 실천 Vol.15 No.4

This study was implemented to investigate the status and their needs on life-long education among people with visual impairments and other disabilities. The actual purpose of this study is to suggest ideas to develop the basics of life-long education for people with visual impairments and other disabilities. For this study, a nationwide survey was conducted with 157 teachers at schools for the blind as well as 158 parents of students and graduates with people with visual impairments and other disabilities. The followings are the results. First, only 24% of students have some kind of experiences related to life-long education which have provided at schools and a couple of social welfare centers. However, almost all parents would want their children to participate any kinds of life-long education programs. Second, the highest program of their interests was the vocationally related program. Third, they mostly prefer the duration of programs: 3-6months, the weekly number of times: 3, and the hours of programs: 3. Last, participants realize that problems that must be solved as soon as possible are to develop proper programs for people with visual impairments and other disabilities, to spread out those programs as well as to activate the teacher training programs of life-long education for people with disabilities. Based on those results, the suggestions were presented finally.