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시금치 엽록체의 광합성 전자전달 활성에 미치는 Cd2+ 의 저해 효과
박강은(Kang Eun Park),정화숙(Hwa Sook Chung) 한국식물학회 1994 Journal of Plant Biology Vol.37 No.2
The effect of Cd^2+ on the electron transport rate of PSⅠ and PSⅡ was investigated in isolated spinach chloroplasts. In photosystem Ⅱ, the rate of electron transport was decreased as the concentration of Cd^2+ was increased from 1 to 100 μM. The inhibitory effect of Cd^2+ was reduced when diphenylcarbazide was added to the reaction medium, indicating that Cd^2+ affects primarily PSⅡ oxygen evolving complexes of thylakoid membrane. The inhibitory effect of Cd^2+ was reduced when Mn^2+ and Ca^2+ were added to the reaction medium, but the inhibitory effect was not fully relieved. Although the activity of PSⅡ was decreased significantly by the treatment of 50 μM Cd^2+, Fv/Fm was decreased slightly. However, the treatment of 100 μM Cd^2+ resulted in the marked decrease of Fv/Fm. In hotosystem Ⅰ, the rate of electron transport decreased as the concentration of Cd^2+ was increased from 0.2 to 3.2 mM. The inhibitory effect of Cd^2+ was decreased when the chloroplast treated with Cd^2+ was washed by centrifugation.
ABEEK 인증을 대비한 프로그램 교육목적 및 학습성과 설정
박강,김정국,박재현,Park Kang,Kim Jung-Kuk,Park Jae-Hyun 한국공학교육학회 2000 공학교육연구 Vol.3 No.2
한국공학교육인증원이 발족되어 각 프로그램에 대한 인증작업이 시작되었으나 이를 준비해야 하는 교수진들은 인증 준비절차에 대한 실무적인 사례가 부족하여 많은 어려움을 겪고 있는 실정이다. 본 논문은 전체 인증 준비과정 중에서 프로그램 교육목적과 학습성과를 선정하는 과정을 구체적으로 제시하고자 한다. 프로그램 교육목적은 교육수요자들의 요구, 교육기관의 교육목적 및 특성, 프로그램별 특성을 반영한 구체적이고 평가 가능한 목적이어야 한다. 프로그램 학습성과는 한국공학교육인증원이 제시한 12가지 학습성과에 프로그램의 특성에 맞는 학습성과를 추가하여 완성하였다. 프로그램 교육목적과 학습성과는 각 과목의 교육목적 및 교육기관의 교육목적들 간에 서로 연관성이 확보되어야 하므로 상관관계분석표를 통하여 연관성을 확인하였다. Even though Accreditation Board of Engineering Education in Korea (ABEEK) started its accreditation procedures, the faculty still have difficulties in preparing the accreditation because there are little practical examples of the preparing procedure. This paper explains the practical procedure to determine the educational objectives and the outcomes, which is the first part of the accreditation preparing procedure. The educational objectives of the program should be expressed by the specific and assessable sentences and their contents should comply with the demands of the educational community, the objectives of the educational institute, and the characteristics of the program. The program outcomes consist of 12 outcomes from ABEEK and additional outcomes that reflect the characteristics of the program. Since the educational objectives and the outcomes should have the full connection among the objectives of the institute and the course objectives, the relationships among them should be checked using the relationship analysis matrix.
단기 입원 프로그램 후 호전된 갱년기 환자의 상열감 및 발한과다에 대한 치험 1례
박강인 ( Kang In Park ),김진우 ( Jin Woo Kim ),박경선 ( Kyoung Sun Park ),이진무 ( Jin Moo Lee ) 대한한방부인과학회 2013 大韓韓方婦人科學會誌 Vol.26 No.3
Objectives: Postmenopausal hot flush and sweating is troublesome symptom to most of climacteric women. It is well known that Korean medicine is safe and effective on climacteric symptoms. So this study aims to report the clinical effect of Korean medicine on postmenopausal hot flush and sweating. Methods: The patient received herbal medication, acupuncture, moxibustion, cupping therapy, Gong-jin therapy, and Korean medicine music therapy during hospitalization (about 8 days). Results: Hot flush and sweating was effectively reduced after the treatment. Visual Analogue Scale (VAS) for hot flush and sweating decreased from 9 to 2. Hot flush score decreased from 20 to 8. Area of hot flush and sweating also markedly decreased. Conclusions: This case shows that Korean medicine is effective on climacteric symptoms.
박강일(Kang-Il Park),김해중(Hae-Joong Kim),김도진(Do-Jin Kim),홍정표(Jung-Pyo Hong) 한국자동차공학회 2012 한국자동차공학회 부문종합 학술대회 Vol.2012 No.5
Recently, the research and development which the main component of hybrid vehicle is underway. So, improving the efficiency of electric motors is important. In this paper, the efficiency according to the ratio of out diameter and stack length is studied analytically. To verify proposed method, the analytic results are compared to the characteristic results which are calculated from equivalent circuit.
두 개의 막대자석에 의해 형성된 자기장에 대한 초.중등학생들의 오개념 유형 조사
박강은(Park, Kang Eun),박종호(Park, Jong Ho) 성신여자대학교 교육문제연구소 2010 교육연구 Vol.49 No.-
본 연구는 막대자석 두 개의 상호작용에 대한 초⋅중등학생들의 자기장에 대한 오개념 유형을 알아보기 위해 초등학교 3학년과 6학년 154명과 중학교 3학년의 96명 총 250명을 대상으로 자석 단원에 대한 학습이 끝난 시기인 2월에 설문조사를 실시하였다. 이을수의 자석 한 개에 대한 자기장 오개념 분류기준에 따라 막대자석 두 개에 의해 형성된 자기장에 대한 개념을 조사하여 분류하였으며, 학년별로 자기장의 오개념 유형과 그 정도를 비교하였다. 설문조사 분석으로부터, 자기장의 오개념 모형을 부분 분포 모형, 극 분리 모형, 균질 분포 모형, 장 모형의 4가지로 나누었으며, 모형을 대표할 수 있는 하위 유형을 두었다. 모형별 응답률은 균질 분포 모형에 대한 응답률이 가장 높았으며 장 모형, 부분 분포 모형, 극 분리 모형의 순으로 나타났다. 모형별 응답률의 학년 간 비교는 부분 분포 모형의 경우 초등학교 3학년이 가장 높았으며, 초등학교 6학년, 중학교 3학년 순의 경향을 보였다. 극 분리 모형은 주로 초등학교 6학년이 가장 높게 나타났다. 균질 분포 모형은 초등학교 6학년이 가장 높았으며 초등학교 3학년, 중학교 3학년 순의 경향을 보였다. 장 모형은 중학교 3학년이 가장 높았으며, 초등학교 3학년, 초등학교 6학년 순의 경향을 보였다. 장 모형에 대한 학년별 응답률은 중학교 3학년에 비해 초등학생이 현저하게 낮았다. 전체적으로 자기장을 바르게 인식하고 있는 학생의 비율이 상대적으로 중학교 3학년에 비해 초등학교 3학년과 6학년이 매우 낮음을 알 수 있었다. The purpose of this study was to investigate elementary and middle school student's misconception on magnetic field of interaction of two bar magnet. A survey was conducted of total 250 including 154 3rd and 6th grade elementary students and 96 3rd grade middle school students in February when learning about the unit of the magnet was completed. The models were provided deciding the classification standard by investigating the conception of the magnetic field in case two magnets are put according to Anderson's classification standard the misconception of the magnetic field about two bar magnets. We compared the types and the levels of the misconception of the magnetic field by each grade. We divided the model of the misconception of the magnetic field into 4 models including partial distribution model, pole separation model, homogeneous distribution model and field model and then the sub-model was prepared to represent the model. The response rate of each model had differences depending on disposition of the magnet. The response rate of homogeneous distribution model was highest, and appeared in the order of field model, partial distribution model, and pole separation model. For the response rate by each academic grade, in case of partial distribution model, elementary 3rd graders were highest, and it appeared in the order of elementary 6th graders, and middles school 3rd graders. In pole separation model, mainly elementary 6th graders appeared highest. In homogeneous distribution model, elementary 6th graders appeared highest and it appeared in the order of elementary 6th graders, and middles school 3rd graders. In field model, middles school 3rd graders were highest, and it appeared in the order of elementary 3rd graders, and elementary 6th graders. In the response rate of field model by each academic grade, elementary students were remarkably lower than middles school 3rd graders.