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공지현(Kong Ji-Hyun),지양근(Ji Yang-Guen),강기환(Kang Gi-Hwan),유권종(Yu Gwon-Jong),안형근(Ahn Hyung-Geun),한득영(Han Deuk-Young) 한국태양에너지학회 2010 한국태양에너지학회 학술대회논문집 Vol.2010 No.11
In this paper, When PV module be exposed to outdoor, changes of transmittance and initial Pout were experimented and analysed. Typically, PV modules show the tendency to decreasing Pout in early. It is characteristics of boron doped p-type semiconductor using base of silicon crystalline solar cell. To investigate initial output characteristics of PV module we experiment and analyse about front materials of PV module. Thus the output of PV modules were observed. Transmittance changes observed in the initial value compared to the initial reduction of the maximum was -6.39% compared to the output changes as early as the second polycrystalline modules -2.5%, singlecrystalline modules decreased -1.97%. This paper we discuss the initial characteristics of PV module according to natural illuminations and analyse between transmittance of front materials and Pout of PV module.
결정질과 비정질 PV모듈의 자연광 스펙트럼에 따른 Isc의 변화
공지현(Kong Ji-Hyun),지양근(Ji Yang-Geun),강기환(Kang Gi-Hwan),유권종(Yu Gwon-Jong),안형근(Ahn Hyung-Geun),한득영(Han Deuk-Young) 한국태양에너지학회 2009 한국태양에너지학회 학술대회논문집 Vol.2009 No.11월
In this paper, we analyze the Transition of Isc by natural solar spectrum of c-Si and a-Si PV module. Commonly, performance of photovoltaic (PV) module is estimated under the standard test condition (STC). That is, solar irradiance 1㎾/㎡, solar spectrum distribution: AM1ㆍ5G, module temperature 25 ℃ This means it rarely meets actual outdoor conditions. The solar spectrum always changes. So it is rare to fit the standard solar spectrum AM1ㆍ5G defined in ASTM G173-03 or IEC 60904-3. Thus spectral response of PV module is different depending on the material. so we estimated the variation of Isc at every minutes by comparing c-Si PV module with a-si PV module for outdoor conditions.
한국인 대학생 아랍어 학습자들의 제2언어 동기 자아체계에 관한 연구
공지현(Kong, Ji-Hyun) 명지대학교 중동문제연구소 2017 중동문제연구 Vol.16 No.3
The present study is designed to investigate Korean Arabic learners’ motivation in university settings, mainly focusing on Dörnyei’s (2005, 2009) L2 Motivational Self System. A total of 375 college students, including 111 Arabic majors and 264 non-Arabic majors, participated in a questionnaire survey. The results support the validity of Dörnyei’s L2 Motivational Self System in investigating Korean Arabic learners’ motivation. For them, attitude toward Arab culture and Arabs were the most significant factors influencing learners’ intended effort in learning Arabic, followed by learning attitudes, promotional instrumentality, and the ideal L2 self. The study also compared the survey results and the results of some previous experimental studies on Dörnyei’s system which were conducted mainly with EFL learners in order to find out some similarities and differences between Arabic learners and English learners. Finally, the present study proposes some meaningful educational implications for Arabic teachers based on these key findings.
국내 대학 아랍어 전공 학습자들의 탈 동기와 재 동기에 관한 연구
공지현 ( Kong Ji Hyun ) 한국외국어대학교 중동연구소 2021 중동연구 Vol.39 No.3
This study aimed to investigate demotivation and remotivation of Korean learners majoring in Arabic in domestic universities. To this end, a questionnaire survey was conducted on 296 students of 2nd year and above who were majoring in Arabic on 6 campuses of 5 universities. The analysis of the questionnaire showed that about two-thirds of Arabic majors experienced demotivation and more than one-third of them did not experience remotivation. It found also that most of the Arabic textbooks and materials currently used in the classrooms did not meet the needs and interests of Arabic majors and competitiveness with peers and difficulty of learning Arabic in the classrooms lowered their self confidence and in turn demotivated them. In addition, the study investigated several causes of remotivation experienced by learners and found that studying in Arab countries was the most salient remotivating cause for the participants of this study. The second important remotivating cause was getting good grades. Finally, some remotivating strategies were suggested based on what students proposed as ways to remotivate themselves and their peers.
대학생들의 아랍어 학습동기와 아랍인 및 아랍문화에 대한 인식 연구 -교양 과목으로서 아랍어 학습을 중심으로
공지현 ( Ji Hyun Kong ) 한국아랍어아랍문학회 2010 아랍어와 아랍문학 Vol.14 No.1
This study investigates the ability of three variables-integrative motivation, instrumental motivation, and the foreign language requirement-to predict: (1) perception on Arab people and Arab culture (2) the desire to continue studying Arabic in the future. Analysis of data from questionnaire administrated to 299 students who, as of the second semester 2009, took Arabic lessons as a liberal art course at 11 universities nationwide. A significant negative relationship was found between the need to fulfill the foreign language requirement and attitudes toward Arab culture. This means that students motivated by the need to fulfill the foreign language requirement has less positive attitudes toward Arab culture compared with those not motivated by the need. A negative relationship was found also between the need to fulfill the foreign language requirement and an intention to continue with further studies in Arabic. Meanwhile, positive relationship was found between integrative motivation and instrumental motivation, and an intention to continue with further studies in Arabic. The findings support a focus on classroom activities that enhance integrative and instrumental motivation as a means of increasing the desire to continue studying Arabic.
연어(Collocations)를 활용한 아랍어 어휘 교육 방안에 관한 연구
공지현 ( Ji Hyun Kong ) 한국아랍어아랍문학회 2007 아랍어와 아랍문학 Vol.11 No.1
This study starts from the hypothesis that collocations are co-occurrence of certain words and play a key role in defining pragmatic language competence of native speakers. The study aims to draw attention to the necessity of using collocations in teaching Arabic vocabularies and makes some suggestions on developing practical methods to teach collocations in classroom conditions. The paper made a literature review on established studies that provide relevant definitions. Collocations can be defined as a restricted co-occurrence of certain words upon which a given speech community agrees. Some of the key characteristics of collocations examined in this study can be listed as one-directivity, psychological remarkableness, impossibility of word to word translation, and reliance on certain groups or cultural bound. This study also finds that a student`s knowledge of collocations of target language will help to enhance his/her linguistic skills, especially in terms of fluency. This point serves to highlight the need to introduce collocations in teaching foreign languages in class conditions. Based on these observations, the study proposes to apply some practical methods to teach vocabularies using collocations to teaching grounds in Korea. Applicable methods can be presentation of probable collocations, presentation of collocations using students` performance of translations, presentation of lists of collocations in subjects, essay preparation using collocations and discernment of near synonyms by collocations. It also suggests to develop and compile a Korean-Arabic collocation dictionary to help students to further develop their Arabic vocabulary skills.
9.11 이후 한국인 아랍어 학습자들의 학습 동기와 태도에 관한 연구
공지현 ( Ji Hyun Kong ),신기일 ( Key Il Shin ) 한국아랍어아랍문학회 2015 아랍어와 아랍문학 Vol.19 No.1
This research examines changes in the motivational orientations and attitudes of Korean learners of Arabic, dividing them by stage of learning and gender by using both longitudinal and horizontal analyses. This research included three rounds of nationwide surveys conducted over 13 years. The surveys were given to Korean learners of Arabic language, 324 at the beginning level, 264 at the intermediate level and 20 at the advanced level. The results of the longitudinal analysis confirmed significant changes in motivation and attitudes among Korean learners of Arabic following the events of 9.11 in 2001. Arabic learners showed a significant increase in instrumental orientation, indicating a sharp rise in the instrumentality of the Arabic language within Korean society. At the same time, the horizontal analysis revealed that an integrative orientation and a positive attitude about Arabic classes and teachers are attributes of successful Arabic learners, suggesting that the malleable characteristics of female learners`` motivation and attitudes toward learning Arabic could be a factor contributing to their success in learning it.