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1

초등교사의 발달단계와 수업전문성과의 관계

윤근영

초등교육학회 초등교육학연구 제14권 제2호 2007.12 pp.59-76

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이 연구는 교사발달단계에 따라 초등학교 교사들의 수업전문성이 변화․발달할 것이라는 가정 하에 교사발달단계에 따라 수업전문성은 어떠한 차이가 있는가를 분석하는 데 연구의 목적이 있다. 이를 위하여 교사발달단계와 수업전문성에 관한 선행연구와 고찰을 통하여 교사발달단계 측정 설문지와 수업전문성 측정 설문지를 전문가의 지도하에 이 연구의 목적에 맞게 수정․보완하여 사용하였다. 서울시에 소재하고 있는 초등교사 340명을 대상으로 조사연구를 실시하였으며, 이 중 가용성이 있는 294부를 최종 분석 자료로 선정하였다. 연구 결과는 다음과 같다. 첫째, 개인적 배경변인인 성별, 교직경력별, 직위별, 최종학력별, 교수․학습 방법에 관한 연수 경험별에서 교사발달정도가 모두 유의미한 차이가 있는 것으로 분석되었다. 둘째, 개인적 배경변인 중 교직경력별, 직위별, 교수․학습 방법에 관한 연수 경험별에 따라서 수업전문성이 유의미한 차이가 있는 것으로 분석되었다. 셋째, 교사발달단계에 따라 수업전문성 하위변인인 내용지식 및 내용교수법, 학생이해, 수업설계, 학습환경 조성 및 학급운영, 수업실행, 수업반성 및 전문성 발달 수행수준은 모두 유의미한 차이가 있는 것으로분석되었으며 수행수준은 승진지향단계, 성숙단계의 교사 순으로 가장 높게 나타났고, 생존단계의 교사가 가장 낮게 나타났다.
This study has the purpose to reveal what kinds of differences are there among instructional professionalism by the developmental stage of teacher under the supposition that instructional professionalism of elementary school teachers will change and develop by the developmental stage of teacher. To achieve the purpose, evaluation questionnaire for development stage of teacher and evaluation questionnaire for instructional professionalism directed by expert through previous study and research on development stage of teacher and instructional professionalism were used for fitting to the purpose of this study by revising and supplementing. This study was gathered by 340 peoples' questionnaire. 294 questionnaire as the final analysis data that are available were finally selected. The result of this study gained through above process is summarized as followings. First, out of variables by personal background, the developmental level of teacher by sex, career of teachership, work position, final educational background, experience of study and training on instructional and learning method was analyzed meaningfully. Second, instructional professionalism among variables by personal background of teacher was analyzed meaningfully by career for instructional professionalism, work position, experience of study & training experience on instructional and learning method. Third, knowledge & instructional method of contents, understanding of student, planning of study, formulation of study environment and operation of class, execution of study, study reflection of study and execution level of professionalism development by the developmental stage of teacher were all analyzed meaningfully.

5,200원

2

초등교사의 수업 전문성 탐색을 위한 이론적 고찰

윤근영

초등교육학회 초등교육학연구 제14권 제1호 2007.06 pp.81-97

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이 연구는 교사의 전문성을 수업 전문성에서 찾아야 한다는 전제 하에 기존 연구를 바탕 으로 수업 전문성을 탐색하는 데 있다. ‘교육의 질은 교사의 질을 능가할 수 없다’ 또는 ‘학 교 교육의 성패는 교사에게 달려 있다’고 한다. 이는 교사가 교육 활동의 주체이며 교육의 질과 성패를 좌우하는 가장 중요한 요인임을 나타내 주는 것이다. 이러한 사실들로 미루어 볼 때, 교육에 있어서 교사의 위치가 중요하다는 것과 따라서 교사는 반드시 전문성을 지 녀야 한다는 것을 알 수 있다. 교사는 여러 가지 역할을 수행하지만 가장 기본적인 역할은 수업 기능이다. 따라서 수업 전문성은 교사가 수행하는 전문성의 핵심이라고 말 할 수 있 다. 교사의 수업 전문성이란 수업의 계획, 전개, 평가, 및 관리 등에 대한 전반적인 수업 활 동을 안정적이고 역동적으로 전개하는 것이고, 또한 다양한 변화에 대응할 수 있기 위해서 갖추어야 할 지식, 기술, 태도에 관한 모든 능력이라고 할 수 있다. 수업 전문성의 범위가 수업의 효율성에 영향을 주는 수업의 지원체제까지를 포함하는 것으로 볼 때, 수업 전문성 의 영역은 교직관, 수업 준비도, 전문지식, 학생의 이해능력, 수업방법, 수업기술, 매체활용 능력, 평가능력, 학급경영능력, 끊임없는 자기 계발과 전문성을 발전시키기 위한 노력 등의 영역으로 나타났다.
This study is for looking at the teaching specialization based on previous study under the condition that should find out teacher’s specialization from teaching specialization. It is said the quality of education can not exceed the quality of teacher, or success and failure of school education depends on teacher. This is shown that teacher is main body of educational activity and is the most important factor which affects the quality of education, success and failure of education. When judging by these facts, we can know that position of teacher in education is important, thus teacher has to necessarily possess specialization. Teacher performs various roles, but the most basic role is function of teaching. Thus, it can be said that specialization of teaching teacher performs is the core of specialization. It can be said that specialization of teacher’s teaching is to stably and actively develop general activity of teaching about planning, development, evaluation and management of teaching and is also all abilities on knowledge, skill and attitude which should be had to cope with various changes. When it is thought that the scope of teaching specialization includes support system of teaching that influences effectiveness of teaching, the scope of teaching specialization showed several scopes such as view of the teaching profession, preparation degree of teaching, expertise, understanding ability of student, teaching method, teaching skill, ability to use media, evaluation ability, managing ability of class, endless self-development and efforts for developing specialization.

5,100원

3

국산의약품의 해외 시장진출을 위한 인·허가제도 연구-태국

윤근영, 권진원, 이의경

한국에프디시법제학회 FDC법제연구 13권 1호 2018.06 pp.35-43

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전통적인 제약선진국의 제약시장 성장률은 둔화되는 반면 Pharmerging 국가들의 성장세는 두드러지고 있다. FTA 체결 등을 통한 시장개방, 약가 인하 등으로 인해 국내 제약사는 점차 수출을 통한 해외시장 진출 및 시장 확대를 도모하는 추세이다. 이에 따라 국가별로 상이한 인허가 제도에 대한 이해가 더욱 필요하다고 할 수 있다. Pharmerging 국 가들 중에서도 태국은 태국 제약시장은 인도네시아를 잇는 동남아시아 2대 시장으로 헬스케어 수요는 증가하고 있고 헬 스케어 분야의 정부지출이 다른 많은 개발도상국 대비 높아 높은 잠재력을 갖고 있다. 본 연구는 태국의 의약품 허 가제도에 대한 연구로 제도비교를 통해 우리나라 제약업계의 태국으로의 수출 촉진에 기여하고자 하는 목적으로 진 행되었다. 태국에서 허가구비서류는 ASEAN (Association of South-East Asian Nations) CTD (Common Technical Document)로 제출되어야 한다. 태국 내에서 임상시험을 실시하기 위해서는 윤리위원회 (Independent Ethics Committee, IEC)의 검토와 승인을 받아야하며 각 윤리위원회별로 제출서류 요건과 회의일정, 검토 절차 및 승인 소요기간이 상이 하여 이 부분에 대한 준비가 필요할 것으로 사료된다. 또한 윤리위원회의 임상시험 승인 이후 임상시험용 의약품 수 입을 위한 신청 절차를 진행하여야 한다. NDA 신청은 큐 시스템 서비스 (Central Queue Reservation System)을 통해 이루어지는데 먼저 위임장과 함께 큐 시스템 서비스 이용에 요구되는 서류들을 제출하여 의약품 유형별로 정해진 제 출 요일에 예약을 한 뒤 해당 날짜에 전문가와 태국 식품의약품안전처 담당자가 서류를 사전 검토하는 절차를 거쳐 야 한다. 그 밖에 태국은 품목허가 갱신을 위한 기준이 없으며 품목허가 사항은 의약품 제조 또는 수입 허가의 유효 기간까지 영구히 지속된다. DMF (Drug Master File) 제출에 대한 규정과 약물감시 관련하여 태국 내 의약품의 중대 한 이상사레나 이상반응 보고에 대한 규정 또한 없다. 2007년 6월부로 한-ASEAN FTA가 발효되었으며 태국은 APEC 국가의 일원이다. 태국의 의약품 수입 규모는 11억 달러 이상으로 생산규모보다 높아 수입에 의존하는 구조이며 앞 서 언급하였듯 큰 시장 잠재력을 갖고 있는 만큼 국내 제약기업의 태국 진출은 장려되며 이를 통해 다른 ASEAN 국 가로 시장을 확대해 나갈 수 있는 좋은 기반이 되리라 생각된다.
The growth rates of traditional developed countries of the pharmaceutical industry continue to slow down while those of pharmerging countries are experiencing a rapid growth. Korean pharmaceutical countries are starting to promote export and expansion into the overseas market as the concluded FTAs with other countries result in market opening and the prices of their pharmaceutical products are being reduced in the domestic market. Consequently, the need to understand the regulatory system that is different for each country is ever more increasing. Thailand is the second largest market after Indonesia in Southeast Asia whose healthcare demand is increasing and the governmental spending on healthcare is relatively high compared to other countries in the region. This study focuses on the regulatory system of Thailand for pharmaceutical products by comparing it with that of Korea to promote export. In Thailand, regulatory documents should be submitted in the form of ASEAN CTD (ASEAN Common Technical Document). In order to conduct clinical trials in Thailand, review and approval by the IEC (Independent Ethics Committee) are mandatory whose requirements, timeline and administrative procedure are different for each IEC. In addition, investigational new drugs have to go through the import procedure after IEC approval. NDA (New Drug Application) is applied through the Central Queue Reservation System, where the applicant submit the power of attorney together with the documents required for using the system to to reserve a queue, the date of which is fixed for each type of drug and the preliminary review takes place on the reserved date. There is no legal basis for renewal of marketing authorization and the license for manufacture and import of drug persists. Also, there are no legally binding regulations related to DMF or pharmacovigilance in Thailand. Korea-ASEAN FTA is in effect since the June of 2007 and Thailand is one of the ASEAN countries. Since the pharmaceutical market of Thailand relies heavily on import and possess a great potential as mentioned earlier, export to the country is recommended and it would provide a good basis for entering other markets of the ASEAN countries as well.

4,000원

4

해시체인기반의 경량화 RFID 인증 프로토콜

윤근영, 김동성, 박종서

한국융합보안학회 융합보안논문지 제6권 제1호 2006.03 pp.45-53

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해시 체인 기반의 여러 RFID 인증 프로토콜들이 제안되었다. 상태기반 인증 프로토콜과 시도 응답기반 인증 프로토콜은 위치추적 공격, 스푸핑 공격, 재전송 공격, 트래픽 분석 공격에는 안프로토콜은 위치추적 공격, 스푸핑 공격, 재전송 공격, DoS 공격에는 안전하지만 트래픽 분석 공격에는 취약하다. 본 논문에서는 이런 문제점들을 보완하기 위해 해시체인 인증 프로토콜과 위치 추적과 서비스 거부 공격에 강한 RFID 인증 프로토콜의 장점을 결합하여 좀 더 안정적이며 경량화 된 RFID 인증 프로토콜을 제안한다. 제안 프로토콜의 보안성을 분석한 결과 위치추적 공격, 스푸핑 공격, 재전송 공격, 트래픽 분석 공격, DoS 공격 측면에서 안전한 것으로 나타나며 이외의 경량화 된 RFID 인증 프로토콜임을 보인다
It h a s b e n p r o p o s e d t h a t s e v e r a l R F I D a u t h e n t i c a t i o n p r o t o c o l s b a s e d o n h a s h c h a i n . S t a t u s b a s e d authentication protocol and challenge-response based authentica tion protocol are secured against affic analysis attacks but are vulnerable to Dos attacks. RFID authentication protocol with strong resistance against traceability and denial of service attack is secured against location tracking attack, spoofing attacks, replay attacks, DoS sent study suggests a more secure and lightweight RFID authentication protocol which is combining the advantages of hash-chain authentication protocol and RFID authentication protocol with s and denial of service attack. The results of the secure analysis for a proposed protocol are illustrated that it is secured against location tracking attacks, spofing attacks, replay attacks, traffic analysis ver and tag.

4,000원

5

실내환경 쾌적 제어와 건물 에너지

윤근영

[Kisti 연계] 대한설비공학회 설비저널 Vol.44 No.8 2015 pp.24-30

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6

신경회로망을 이용한 마이크로그리드 단기 전력부하 예측

정대원, 양승학, 유용민, 윤근영

[Kisti 연계] 대한전기학회 電氣學會論文誌 Vol.66 No.4 2017 pp.621-628

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This paper presents an artificial neural network (ANN) based model with a back-propagation algorithm for short-term load forecasting in microgrid power systems. Owing to the significant weather factors for such purpose, relevant input variables were selected in order to improve the forecasting accuracy. As remarked above, forecasting is more complex in a microgrid because of the increased variability of disaggregated load curves. Accurate forecasting in a microgrid will depend on the variables employed and the way they are presented to the ANN. This study also shows numerically that there is a close relationship between forecast errors and the number of training patterns used, and so it is necessary to carefully select the training data to be employed with the system. Finally, this work demonstrates that the concept of load forecasting and the ANN tools employed are also applicable to the microgrid domain with very good results, showing that small errors of Mean Absolute Percentage Error (MAPE) around 3% are achievable.

원문보기
7

공조방식에 따른 사무소 건물의 에너지 성능 평가

최종대, 최동석, 윤근영

[Kisti 연계] 대한설비공학회 Korean journal of air-conditioning and refrigeration engineering Vol.24 No.8 2012 pp.612-620

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High economic growth causes increase of the building energy consumption. The energy consumption for HVAC system accounts for 40~50% of the whole building consumption. The trend for building is large-scale and high-rise. Because of the trend, the energy consumption is becoming bigger than before. Nowadays, HVAC system design are recognized as the solution for a energy-saving. This paper is focused on the energy performance evaluation of central air-conditioning system(water-based) and system air-conditioning that were applied to the office building. The systems are modeled and simulated by using EnergyPlus Software 6.0. After the Simulation, annual cooling and heating energy consumption were calculated. It was found that the system air-conditioning can reduce the energy consumption approximately 55.24% annually compared with the central air-conditioning system(water-cooled). In addition, about 46.13% of annual operating costs can be reduced by use of system air-conditioning.

원문보기
8

재실밀도의 변화에 따른 건물에너지 사용량 분석을 위한 예비조사

최종대, 윤근영

[Kisti 연계] 한국태양에너지학회 한국태양에너지학회 학술대회논문집 2011 pp.130-133

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This paper reports the Survey results from a field monitoring study of office occupancy densities. The field measurement of a office in Yongin was carried out from 19 September to 30 September 2011. The survey has an aim to reveal the building energy consumption relationship between occupancy densities of a realistic office and the previous studies. The results showed that hourly occupied density of the previous studies is more higher than a field survey. we investigated the effects of difference occupancy densities on annual heating and cooling energy consumption using EnergyPlus. Heating and cooling consumption was raised because of the increased occupancy density. therefore, accurately measure the occupnacy schedule is important in order to reduce excessive building energy consumption, and is an significant element to be considered in the energy simulation.

원문보기
9

동적 LED 시스템의 조명원적 성능분석

김효인, 김정태, 윤근영

[Kisti 연계] 한국태양에너지학회 한국태양에너지학회 논문집 Vol.31 No.2 2011 pp.113-119

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LED lighting has received much attention in recent years due to its high energy efficiency and environmental friendliness. As the color of light can be obtained by adjusting the light intensity of LEDs, the quality of visual environment can be improved. The aims of this study are to develop a wavelength adjustable LED lighting system and to examine its lighting performances. The LED lighting system and experimental cell for assessment of the lighting performance were constructed. This LED lighting system is able to materialize the various spectral power distribution and color temperature of light through the control of the four dimmers. Up to $432^4$ kinds of light combinations are possible. The range of illuminance on workplane were measured as 7~1,831 ㏓. Improvement of psychological and physical functions for occupants can be expected according to control of lighting performances.

원문보기
10

동적 LED 조명 시스템의 개발에 대한 연구

최종대, 김효인, 윤근영

[Kisti 연계] 한국태양에너지학회 한국태양에너지학회 학술대회논문집 2011 pp.168-173

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Recently, from a saving energy and environmental lighting sources point of view, using LED lighting have been increased rapidly. The colors of light was applied to the control of dimmers that is composed of red, green, blue, and white(RGBW) to improve the quality of visual environment. Moreover this study has been processed to develop adjustable dynamic LED lighting system on SPD and definitize the various spectral power distribution and color temperature of light through the control of the four dimmers. It is possible to combine up to $432^4$ kinds of light. Measurement of illuminance of range on working surface was as 7~l,831 lux. Application of visual environment for occupants can be expected according to control of lighting performance.

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11

유비쿼터스 센서 네트웍을 이용한 겨울철 도로기상정보 시스템

윤근영, 김남호, 최황규, 정도영, 최신형, 김기택

[Kisti 연계] 한국멀티미디어학회 멀티미디어학회논문지 Vol.14 No.3 2011 pp.392-402

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겨울철 강설 및 도로결빙으로 인하여 불편함 뿐만 아니라 예상치 못한 사고를 당할 위험성이 있어 이에 대한 적절한 대책이 필요하다. 산간지역의 급경사도로 등에 도로조건을 감지하는 시스템이 설치되고 있지만 비용이 고가이기 때문에 많은 지역에 설치하고 있지 못하는 실정이다. 본 논문에서는 강설과 결빙 등 겨울철 도로기상정보를 체계적으로 수집하는 도로기상정보 수집시스템을 제안하였다. 디지털 온도센서, 적외선 온도센서, 초음파 센서 및 CMOS 카메라와 구동모터를 사용하여 센서 등 멀티미디어 데이터를 수집하고 측정한 데이터를 유비쿼터스 센서 네트웍(USN)을 이용하여 서버에 전송하기 위해 두 가지 타입의 제어통신보드를 구성하였다. 서버프로그램의 구성과 수집된 데이터를 이용하여 상황을 판단하는 방안을 함께 제시하였으며, 구성된 시스템의 성능을 실험을 통해 도로에서의 적용가능성을 확인하였다.
Snow fall and icing on traffic roads in the winter season cause not only inconvenience but unexpected traffic accidents, so the proper measures are needed. The existing road information system is being installed for steep slope roads in mountain areas, however, it is not widely adopted because it is too expensive. In this paper, a novel and cost-effective road weather information system especially for snow fall and icing on roads is proposed. The system consists of digital temperature and relative humidity sensor, infrared temperature sensor, ultrasonic sensor, CMOS camera, and two types of control/communication board for ubiquitous sensor network to send the data to server. The server program including the decision making method with received data is also described. Experimental results are provided to prove the feasibility of the proposed system.

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12

Lysobacter antibioticus HS124를 이용한 배추좀나방 (Plutella xylostella L.)의 생물학적 방제

강성준, 이용성, 이소연, 윤근영, 홍성현, 박윤석, 김익수, 박노동, 김길용

[Kisti 연계] 한국토양비료학회 Korean journal of Soil Science and Fertilizer Vol.43 No.5 2010 pp.659-666

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선행연구에서 근권 토양으로부터 분리된 Lysobacter antibioticus HS124 (HS124)는 lytic enzyme으로써 chitinase, gelatinase, lipase 및 protease 등의 효소와 항생물질인 4-hydroxyphenylacetic acid (4-HPAA)를 생성하였다. 본 실험에서는 HS124를 이용하여 배추좀나방 (diamondback moth, Plutella xylostella L.) 3~4령 유충의 살충활성을 검정하였다. HS124 배양액을 배추좀나방 유충에 처리하였을 때 유충은 파괴되어 분해되었다. HS124가 생성하는 4-HPAA를 유충에 처리하였을 때 처리 농도가 높을수록 살충율은 증가하였으며, HS124 배양액에 Tween 80을 첨가하였을 때 첨가하지 않은 처리구보다 살충율이 1.4배 높았다. 한편 화학 살충제 (IS), HS124 배양액 (HS124), 식물추출물 (매직파이; MP), HS124 배양액+식물추출물 (HS124+MP) 및 멸균수 (SDW)를 이용하여 배추좀나방 유충의 살충율을 검정하였다. HS124+MP 처리구에서 가장 높은 살충율을 나타내었고, IS, MP, HS124 및 SDW 처리구 순으로 살충율이 감소하였다. HS124 처리구는 대조구인 멸균수처리구보다 31% 높은 살충율을 나타내었고, HS124+MP처리구 보다 40% 낮은 살충율을 나타내었다. 이러한 결과로 보아 항생물질과 다양한 lytic enzyme을 생성하는 L. antibioticus HS124 배양액과 식물추출물의 혼합제제는 배추좀나방의 생물학적 방제제로써 가치가있다고 사료된다.
Lysobacter antibioticus HS124 was isolated from rhizosphere soil in previous experiments, which produced lytic enzymes such as chitinase, gelatinase, lipase and protease. In addition, HS124 released an antibiotic compound, 4-hydroxyphenylacetic acid (4-HPAA). When larvae of P. xylostella was treated with HS124 culture broth, its body was destroyed, and degraded with the increase of incubation time, yielding glycine which was detected from HS124 culture broth. When 4-HPAA produced from HS124 was sprayed, larvae mortality increased with increasing concentration of 4-HPAA. When HS124 culture supplemented with Tween 80 was sprayed, its insecticidal activity against larvae was approximately 1.4 times higher compared to the culture without Tween 80. Insecticide (IS), HS124 culture broth (HS124), Magic-pi (MP) and HS124 culture broth+Magic-pi (HS124+MP) were each treated against larvae of P. xylostella to investigate their insecticidal effect where sterile diluted water (SDW) was used as a control. The highest mortality of larvae was found in HS124+MP, followed by IS, MP, HS124 and SDW respectively. Mortality of larvae in HS124 was 31% higher than that in SDW, but 41% lower than that in HS124+MP, meaning that both enzymes and antibiotics produced from HS124 may synergistically act as active agents with plant extract containing neem oil and turmeric in HS124+MP treatment. These results suggested that L. antibioticus HS124 together with plant extract can be one of candidates for biocontrol agents against Plutella xylostella.

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13

물류 화물 추적을 위한 UN/CEFACT 표준 기반의 BP 모델링 및 데이터 정의

안경림, 윤근영, 박찬권

[Kisti 연계] 한국전자거래학회 한국전자거래학회지 Vol.14 No.4 2009 pp.299-313

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국내 물류 환경이 점차 글로벌 물류로 변화됨에 따라 업무 처리에 다양한 물류 주체들이 참여하고, 화물은 컨테이너에 포장되어 여러 단계를 거쳐 수화인에게 전달된다. 또한 화물 배송 과정 중간에 화물이 손상되거나 유실될 가능성이 크다. 이 때문에 송화인과 수화인을 비롯한 여러 물류 주체들에게 있어서 수출입 화물에 대한 흐름의 파악은 매우 중요한 문제가 되고 있다. 하지만 현실적으로는 여러 가지 문제로 인해 화물이 전달되는 과정을 일관되게 추적하는 것은 매우 어려운 실정이다. 그 원인은 화물과 정보 흐름이 일치하지 않는다는 것과 업무자동화 측면에서 표준 정보 및 프로세스가 아니어서 물류 주체 간 데이터 연동이 어렵다는 것이다. 이에 본 논문에서는 화물 추적 업무에 있어서 단일화되고 통합된 비즈니스 협업을 위한 비즈니스 프로세스를 정의하고, 그 결과를 이용해 표준 데이터를 정의하고자 한다. 개발된 프로세스 모델과 표준 데이터는 국제적으로 상호운용성을 지원할 수 있도록 하였다.
As domestic logistics environment has changed into global logistics, various logistics parties are participating in processing logistics business. Goods is packed into container and delivered to consignee in steps. The goods may be damaged or lost since it has not directly delivered to consignee by single entity during the delivery process. Therefore, all parties want to know the flow of export/import cargos. However, it is very difficult to follow cargo flow consistently delivered from consignor to consignee. Because cargo flow does not be matched up information flow and information systems are based on neither standard business processes nor standard data, which makes it very difficult to associate logistics data among various logistic parties. This paper performs business process modeling for cargo tracking with international standard modeling methodology released by UN/CEFACT. And then, the standard data is defined for cargo tracking business process of unified and integrated business collaboration. The resulting business process model and data model will support international interoperability.

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14

홍삼분말을 활용한 다식제조에 관한 연구

윤근영, 김명애

[Kisti 연계] 한국식생활문화학회 한국식생활문화학회지 Vol.21 No.3 2006 pp.325-329

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This study was to investigate the effect of the addition of red ginseng powder in Dasik. The addition of red ginseng powder in Dasik that we used with was in the ratio of 0%, 2%, 4%, 6% and 8% of red ginseng powder to Dasik in weight. Also, we used two different kinds of Dasik. One was made of starch and the other was made of flour. The physic-chemical analysis and sensory test were performed on the Dasik. The red ginseng powder added flour and starch Dasik showed lower moisture content and higher ash content compared with the non-added control group. In color analysis, whereas L value lowed at the addition of red ginseng powder, a and b value increased at the addition of red ginseng powder. In mechanical texture test, addition of red ginseng powder starch Dasik showed high hardness, cohesiveness and brittleness. Addition of red ginseng powder flour Dasik showed high springiness and gumminess. In the sensory test, the addition of the red ginseng powder reduced the sweetness and increased the surface color and the flavor. There was no difference in preference between the Dasik with up to 4% of red ginseng powder added and the control group, but the Dasik with 6% or more red ginseng was found undesirable (p<0.05). In conclusion, the Dasik with up to 4% addition of red ginseng powder would be the useful method to fulfill the traditional quality of Dasik. It was also found that the flour Dasik was to be more preferable than the starch Dasik.

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15

영구자석 형상비를 고려한 영구자석 매입형 BLDC 전동기 설계 및 특성해석

윤근영, 류세현, 양병열, 권병일

[Kisti 연계] 대한전기학회 전기학회논문지. The transactions of the Korean Institute of Electrical Engineers. B, 전기기기 및 에너지변환시스템부문 Vol.55 No.1 2006 pp.1-8

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Now a day, owing to high efficiency and easy speed control of brushless DC(BLDC) motor, the demand of BLDC motor that has high power and low noises are increasing. Especially demand of interior permanent magnet(IPM) BLOC with high efficiency and high power in electric motion vehicle is increasing. IPM BLDC motor has permanent magnets in the rotor. Because it has two different flux paths, magnetic reluctance differences are generated in d-axis and q-axis. As the result of the inductance differences that are generated by the saliency(magnetic reluctance differences) in the rotor, the motor has structure advantage that has the additional reluctance torque except a magnet torque and because magnet is situated inside the rotor, the mechanical structure is strong. Therefore IPM BLDC motor makes possible to have high speed and high power. This paper presents a design and characteristics analysis of IPM BLDC motor for electric vehicle. To design IPM BLDC motor, surface mounted permanent magnet(SPM) BLDC motor is used as the initial design model. According to the shape-ratio() of permanent magnet, the characteristic of IPM BLDC motor is analyzed by Finite element method (FEM). Characteristics analysis results of the designed motor are compared with the experimental results.

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16

회전자 자속장벽 설계에 의한 영구자석 매입형 BLDC 전동기 코깅 토오크 저감 연구

윤근영, 양병렬, 권병일

[Kisti 연계] 대한전기학회 전기학회논문지. The transactions of the Korean Institute of Electrical Engineers. B, 전기기기 및 에너지변환시스템부문 Vol.55 No.10 2006 pp.491-497

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For high efficiency and easy speed control of brushless DC (BLDC) motor, the demand of BLDC motor is increasing. Especially demand of interior permanent magnet (IPM) BLDC with high efficiency and high power in electric motion vehicle is increasing. However, IPM BLDC basically has a high cogging torque that results from the interaction of permanent magnet magnetomotive force (MMF) harmonics and air-gap permeance harmonics due to slotting. This cogging torque generates vibration and acoustic noises during the driving of motor. Thus reduction of the cogging torque has to be considered in IPM BLDC motor design by analytical methods. This paper proposes the cogging torque reduction method for IPM BLDC motor. For reduction of cogging torque of IPM BLDC motor, this paper describes new technique of the flux barriers design. The proposed method uses sinusoidal form of flux density to reduce the cogging torque. To make the sinusoidal air-gap flux density, flux barriers are applied in the rotor and flux barriers that installed in the rotor produce the sinusoidal form of flux density. Changing the number of flux barrier, the cogging torque is analyzed by finite element method. Also characteristics of designed model by the proposed method are analyzed by finite element method.

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17

녹차분말 첨가가 다식의 품질 특성에 미치는 영향

윤근영, 김명애, 현지수

[Kisti 연계] 한국식생활문화학회 한국식생활문화학회지 Vol.20 No.5 2005 pp.532-537

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This study was carried out to clarify the effect of addition of green tea powder on Dasik quality. The green tea powder was added as the ratio of 0%, 2%, 4%, 6% and 8%, respectively. The physio-chemical analysis and sensory test on the Dasik were performed. The flour and starch Dasik added to green tea powder showed lower moisture content compared to the non-added treatment, but the ash content was higher in the added Dasik. At the color test, Dasik of green tea powder showed lower L, a, and b value than the non-added treatment, respectively. These values were greatly decreased as the amount of green tea powder was increased. Addition of green tea powder had a tendency to show high hardness, cohesiveness, springiness, and gumminess but brittleness was low in the non-added treatment. Therefore, addition of green tea powder made Dasik texture more dense, and this tendency of texture was distinct at the flour Dasik compared to the starch Dasik. At the sensory test, surface color and green tea flavor were strong as the adding amount of green tea was increased, but sweetness was weak. There were not significant differences in the overall preference among 0%, 2% and 4% treatments, but the preference was greatly decreased from the above 6%. In conclusion, 4% addition of green tea powder would be the useful method to enhance quality of Dasik, and the flour Dasik showed better result than the starch Dasik.

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18

녹차분말 첨가가 약과의 품질과 저장성에 미치는 영향

윤근영, 김명애

[Kisti 연계] 한국식생활문화학회 한국식생활문화학회지 Vol.20 No.1 2005 pp.103-112

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The objective of this study was to clarify the effect of addition of green tea powder(0%, 2%, 4%, 6%, 8%) to Yackwa on quality and preservation. Addition of 4% green tea powder turned out to give positive effect on expansion. In test of physical characters, addition of green tea powder had a tendency to lower hardness, cohesiveness, springness and gumminess but to enhance brittleness. Considering the rancidity of oil within Yackwa, addition of green tea powder tended to show lower acid value and peroxide value than non-added treatment but its difference was slight. At the sensory test, surface color, bitterness and green tea flavor were strong but sweet and savory taste weak when green team powder was added(p<0.05). Overall quality appeared to have improved to 5.55 points which is compared to non-addition when the powder was added 4%(p<0.05). In conclusion, 4% addition of green tea powder would be the usefull method to enhance preference and quality of Yackwa.

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19

회전자부의 자속장벽 설치를 통한 IPM type BLDC 전동기 코깅 토오크 저감에 대한 연구

윤근영, 양병렬, 류세현, 권병일

[Kisti 연계] 대한전기학회 대한전기학회 학술대회논문집 2004 pp.64-66

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Several techniques have been adopted in motor design of interior permanent magnet (IPM) type brushless DC (BLDC) motor to minimize cogging torque. IPM type motor has better ability in the centralization of flux than surface-mounted permanent magnet (SPM) type BLDC motor. So, the structure of IPM type BLDC motor has high saliency ratios that produce additional torque. However, this structure has a significant cogging torque that generates both vibration and noise. This paper describes new technique of the flux barriers design for reduction of cogging torque of IPM type BLDC motor. To reduce the cogging torque, flux barriers are applied in the rotor. Changing the number of barrier, the cogging torque is analyzed by finite clement method(FEM).

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20

IPM type BLDC 전동기의 자속장벽 설치에 따른 코깅 토크 저감

양병렬, 윤근영, 권병일

[Kisti 연계] 대한전기학회 대한전기학회 학술대회논문집 2004 pp.67-69

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This paper describes an approach to design a interior permanent magnet motor(IPM motor) for the reduction of cogging torque. The magnitude of the torque ripple and cogging torque in a interior permanent magnet motor(IPM motor) are generally dependent on several major factors: the shape of stator tooth tip, slot opening width, air gap length, the shape of barrier preventing flux leakage of magnets, magnet configuration and magnetization distribution or magnet poles. In this paper, the IPM BLDC motor is designed considering a saturated leakag flux between the barriers on the rotor for increasing the efficiency and decreasing the magnitude of the cogging torque. Analytical model is developed for the IPM BLDC motor with a concentrated winding stator. The results verifies that the proposed design approach is very efficient and effective in reducing the cogging torque and the torque ripple of the IPM BLDC motor to be used in an electric vehicle.

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