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중성점을 사용하지 않는 BLDC 전동기 센서리스 제어 기법
심광렬(Kwang-Ryeol Sim),안정렬(Jeong-Ryeol An) 대한전기학회 2012 전기학회논문지 P Vol.61 No.3
Generally, brushless DC motor(BLDCM) driving system uses hall sensors or encoders as the mechanical position or speed sensor. It is necessary to achieve the informations of rotor position for driving trapezoidal type brushless DC motor without any position sensor. In this paper, the commutation signals are obtained without the motor neutral voltage, multistage analog filters, A/D converters, or the complex digital phase shift circuits which are indispensable in the conventional sensorless control algorithms. In the proposed method, in stead of detecting the zero crossing point of the nonexcited motor back electromagnetic force for the average motor terminal to neutral voltage, the commutation signal are extracted directly from the specific average line to line voltage with low-pass filter, adder and comparators circuit. In contrast to conventional methods, the neutral voltage is not need; therefore, the commutation signals are insensitive to the common mode noise. Moreover, the complex phase shift circuit can be eliminated. The effectiveness of the proposed method is verified through simulation results.
논문 : 테마파크 내 어린이 놀이공간의 콘텐츠기반 인터랙션 디자인에 관한 연구
이용렬 ( Yong Ryeol Lee ),강성중 ( Sung Joong Kang ),이용렬 ( Yong Ryeol Lee ) 디자인융복합학회 2012 디자인융복합연구 Vol.11 No.3
테마파크 운영의 핵심이 되는 방문자 수와 재방문율을 높이기 위해 타겟에 맞는 콘텐츠 개발과 고객과의 입체적 인터랙션은 중시되고 있다. 테마파크 내 어린이 놀이공간은 단순 놀이공간 이상으로 어린이들의 오감을 자극하여 창의적이고 교육적인 효과를 줄 수 있는 복합공간이며, 본 연구는 사례 분석을 통해 어린이 놀이공간에 적합한 콘텐츠와 이에 기초한 인터랙션 디자인 적용방법의 모색을 목적으로 한다. 성공적인 해외 사례들은 캐릭터, 놀이기구, 조경, 서비스 시설, 게임, 인터랙션 등이 스토리와 테마에 기초하여 일관성을 가진다. 어린이 놀이공간 디자인에는 스토리의 사전인지가 가능한 콘텐츠, 오감과 반응하는 체험형 인터랙션 요소, 상상력과 호기심을 자극할 수 있는 요소, 부모와 함께할 수 있는 프로그램, 비일상적인 공간 체험, 그리고 참여와 놀이가 이루어질 수 있는 환경조성 등 6개의 요소가 필요하다. 어린이 놀이공간 디자인에서 핵심은 ‘어린이 호기심 추출과 기대 충족’으로, 공간 경험의 목적에 따라 6가지 요소의 효율적 조합이 필요하다. To increase the number of visitors and repeat rate at theme park, target-oriented content development and interaction design with customers are critical. The playground area in theme park is a complex space to stimulate kids` five senses and give creative and educational effect for kids beyond entertainment. This study aims to explore content and interaction design application methods for kids play-ground through case studies. Characters, ridings, landscape, service facilities, game, and interaction have consistency based on story and theme at successful cases. For designing kids play space, six elements are needed: content based on pre-conception story, human-sensing interaction, stimuli for imagination and curiosity, program to play with parents, experiencing non-daily space, and kids-oriented overall environment. The core issue of designing playground is ``extracting curiosity and meeting expectation of children``, and efficient combination of six elements is required according to purpose of spatial experience.
초등 영어 의사소통 학습을 위한 상황 기반 다차원적 교수요목 개발
김정렬 ( Jeong Ryeol Kim ),박선영 ( Sun Young Park ) 서울敎育大學校 初等敎育硏究所 2012 한국초등교육 Vol.23 No.4
이 연구는 초등 영어 의사소통 학습을 위한 다양한 의사소통 요소들을 포함한 상황 기반 다차원적 교수요목 개발에 목적을 두었다. 요구 분석, 교육과정 분석, 선호 주제 조사의 결과로서 16 개의 주제와 연관된 구체적인 의사소통 상황들이 선택되었다. 각각의 상황은 어휘 목록뿐만 아니라 국가교육과정으로부터 상황 기반 요소들, 문법적 요소들, 의사소통 기능들을 포함하였다. 교수요목 샘플 파일러팅과 다섯 명의 교육전문가의 평가 이후, 교수요목은 수정되고 개선되었다. 이 연구의 결과는 다음과 같다. (1) 교수요목 설계의 과정을 보여준다. 그리고 이 교수요목의 형태는 의사소통 요소들을 실제적으로 보여주며 다차원적이다. (2) 모형과 구체적인 활동의 예를 제시하는 것은 교수요목 적용의 가능성을 증가시켰다. (3) 학생들의 삶과 밀접하게 관계된 상황들로 구성된 교수요목은 학생들의 학습, 흥미, 자신감에 긍정적인 영향을 미치는 것이 밝혀졌다. 그리고 모형과 상황 기반 교수요목 적용을 위한 활동들에 대한 더 많은 조사들이 이루어질 것이 기대된다. 의사소통 상황에 대한 이해를 돕고 학습 동기를 증가시키기 위한 자료 개발에 대한 연구도 이루어져야 할 것이다. Kim, Jeong-ryeol & Park, Sunyoung. 2012. A development of situation-based multi-syllabus for communicative English learning in elementary school. English Language and Linguistics xx, xx-xx. This study aims to develop a situation-based multi-syllabus including various factors of communication for communicative learning in elementary schools. As results of need analysis, curriculum analysis, and survey of topic preference, 16 topics and related concrete communicative situations were selected. Each situation is including situational factors, grammatical factors, communicative functions from national curriculum as well as vocabulary lists. After piloting of syllabus samples and evaluation of five experts, the syllabus was revised and improved. The results of this study are as follows: (1) This study shows a process of syllabus design, and the form of this syllabus is multi-faceted representing authentically considered communicative factors. (2) Presenting a model and concrete examples of activities increases the possibility of syllabus application. (3) A syllabus which consists of situations closely related to students` life was proved to have positive effects on learning, interest, and confidences of students. And it is expected that more research about models or activities for application of situation-based syllabus and material development to help understanding about the communicative situation and increasing motivation for learning.
김종열(Kim Jong-Ryeol),최광환(Choi Kwang-Hwan),김두열(Kim Du-Ryeol),Agung 한국태양에너지학회 2010 한국태양에너지학회 학술대회논문집 Vol.2010 No.11
Solar air heaters come in two varieties, active and passive. The Active type uses fans to force the heat through the collector and ducting, while passive types rely on thermal syphoning to circulate air through the house. In both cases cooler air is extracted from either outside or inside the house (at floor level), heated, and then pumped back into the house. The passive type has very specific requirements for mounting (usually outside a window to the ground) so usually opted for the more versatile active type which could be mounted on the roof. A model fabricated based on prototype set up on the roof as an actual system to collect thermal energy from the sun during daytime. The air from outside had been supplied by a blow and heated air was thrown away to the chamber established already. With these experiments, possibility for usage of solar air heater could been identified as an alternative energy for regenerating liquid desiccant in the solar desiccant cooling system.
팀 구성원의 갈등수준이 그룹 창의성에 미치는 영향 - KAI 지수에 의한 팀 구성을 중심으로 -
이진렬(주저자) ( Lee Jin Ryeol(주저자) ),이진렬(교신저자) ( Lee Jin Ryeol(교신저자) ) 디자인융복합학회(구.한국인포디자인학회) 2022 디자인융복합연구 Vol.21 No.2
본 연구는 디자인팀의 효율적 구성 및 운영과 이에 따른 팀 디자인성과를 극대화시킬 수 있는 방안을 모색하기 위하여 KAI지수를 활용한 디자인팀 구성과 팀의 갈등발생 수준에 따른 디자인성과차이를 비교분석하였다. 실험 연구는 2차에 걸쳐 KAI지수의 수준과 폭에 따라 3인으로 구성된 16개 팀을 구성하여 과제를 부여하고, 각 팀의 갈등수준과 디자인결과물의 창의성의 상관관계를 분석하였다. 분석결과 높은 KAI지수로 구성된 디자인 팀은 가장 효율적인 팀성과를 도출할 수 있으나, 구성원의 특성상 높은 갈등수준의 유발가능성이 높으며, 갈등관리의 실패는 팀 성과에도 심각하게 부정적인 영향을 줄 수 있는 것으로 나타났다. 이러한 실험결과는 KAI지수에 따른 팀 구성 및 운영은 팀 결과물의 성과를 강화하는데 효율적인 방법이나, 다만 팀 구성원의 갈등이 높지 않은 수준으로 보완되어져야 한다는 점을 의미한다. 팀 구성에 있어서 갈등관리를 선제적으로 대응할 수 있는 방안에 대해서는 본 연구의 후속연구로 진행할 예정이다. This study compared and analyzed the design performance difference according to the design team composition using the KAI index and the level of team conflict in order to find a way to efficiently organize and operate the design team and maximize the team design performance. In the second round of experimental research, 16 teams of 3 people were assigned according to the level and breadth of the KAI index, and tasks were assigned, and the correlation between the conflict level of each team and the creativity of the design result was analyzed. As a result of the analysis, a design team composed of a high KAI index can derive the most efficient team performance, but due to the characteristics of its members, it is highly likely to cause a high level of conflict. These experimental results indicate that team formation and operation according to the KAI index is an efficient way to enhance the performance of the team results, but it means that the conflict among team members should be supplemented to a level that is not high. Methods to preemptively respond to conflict management in team composition will be conducted as a follow-up study of this research.
Thermal state for time-dependent oscillator with a singular term
Jeong-Ryeol Choi 한국물리학회 2004 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.44 No.2
We investigated the thermal states for a time-dependent harmonic oscillator with a singular potential by introducing the density operator that satised the Liouville-von Neumann equation. We supposed that an ensemble of harmonic oscillator particles, which was initially in equilibrium at a certain temperature, followed Bose-Einstein distribution statistics. The expectation values of ^ql(l = 1; 2; 3; ) in the thermal state were evaluated using the diagonal elements of the density operator, and we conrmed that the time dependency for l = 1 was exactly the same as the expectation value in the number state.
( Hyug Ryeol Kim ) 한국윤리학회 2015 倫理硏究 Vol.101 No.1
Utilizing international data on attitudinal and behavioral correlates of civic activism among eighth-grade adolescents, this study examines to what extent the positive effect of growing up in high socioeconomic families on adolescents’civic outcomes, which has been found in Western industrialized countries, is generalizable to less developed countries. It further investigates whether there is any systematic association between a country’s economic level and the strength of the effect of home civic learning environments, which explains the positive effect of high family socioeconomic background on adolescents’civic outcomes. I find that the effects of family SES on adolescents’internal political efficacy, and expected electoral participation tend be stronger in economically developed countries. I also find support for the significant role of home civic learning environments in mediating the family socioeconomic influence on adolescents’internal political efficacy, and expected electoral participation in most countries. Moreover, the results of twolevel hierarchical linear models demonstrate strong empirical evidence of a systematic relationship between the country’s economic level and the effect of home civic learning environments: the wealthier the country is, the stronger the effect of home civic learning environments on adolescents’ internal political efficacy and expected electoral participation.
Past records for the application of arbitrary accomplice regulations to Accomplice-essential crimes
Jong-Ryeol Park(박종렬),Sang-Ouk Noe(노상욱) 한국컴퓨터정보학회 2022 韓國컴퓨터情報學會論文誌 Vol.27 No.3
처벌규정이 없는 불가벌적 대향자에 대한 공범규정 적용을 부정하여 처벌하지 않는다는 논거는 적극적인 관여행위까지 처벌하지 않는다는 문제점을 가지고 있다고 볼 수 있다. 이를 해결하기 위해서는 일반적인 불가벌적 대향자가 대향범 구성요건을 실현하기 위해 최소한의 정도를 초과하지 않은 경우에는 불가벌이지만, 최소한의 정도를 초과하는 경우에는 공범으로 처벌이 가능하다고 볼 수 있다. 또한 불가벌적 대향자가 보호받는 자이거나 기대가능성이 없는 경우에는 불가벌로 파악할 수 있다. 이와 같이 해석하는 것은 일방행위자에 대한 처벌규정이 없는 불가벌적 대향자에 대한 불가벌의 근거를 설명하는데 적합하다고 생각한다. The view of not fully denying the application of accomplice regulations to non-punishable opponents has fallen into a formal and logical circular argument that only provides formal grounds for non-punishment and has failed to provide practical grounds. In addition, it can be said that it has a criminal policy problem contrary to the legal sentiment of the general public by not punishing the active government travel activities of non-punishable accomplices. Therefore, in order to solve this problem, it is necessary to respect the legislators intention that general non-punishment accomplices can be punished if they exceed the minimum government travel commission. Therefore, if an unpunishable accomplice acts at least within the act required to realize the constituent requirements, the application of the accomplice regulations shall be excluded, and the accomplice regulations shall be applied only if they exceed that extent. In addition, if the indispensable counterparty is a protected person or has no responsibility (possibility of expectation), it can be said that it has provided a practical basis for the inability to punish, so it can be understood as impossible to punish. This interpretation method is thought to be able to present concrete validity in marginal cases where the counterparty is more responsible by substantially presenting the basis for an unpunishable accomplice.