고등학생의 쓰기 효능감 및 쓰기 결과 기대, 글 점수 간의 상관관계 분석

최건아 ( Gun Ah Choi ) 국어교육학회 2011 國語敎育學硏究 Vol.40 No.-

이 연구는 고등학생의 쓰기 효능감 및 쓰기 결과 기대, 글 점수 간의 상관관계를 분석하기 위한 목적으로 수행되었다. 자료 수집은 부산 소재 남자 고등학교 1학년 학생들을 대상으로 2011년 2월 중에 이루어졌으며, SPSS 18.0버전을 이용하여 상관관계를 분석하였다. 분석의 결과, 첫째, 참여자들의 쓰기 효능감은 중간 수준이며 이에 비교적 쓰기 결과 기대는 높은 편인 것으로 드러났다. 쓰기 과제 효능감은 쓰기 기술 효능감보다 낮았다. 둘째, 쓰기 효능감과 글 점수 간에는 유의한 정적 상관이 있었다. 특히 쓰기 과제 효능감과 글 점수의 상관이 쓰기 기술 효능감과 글 점수 간 상관보다 높은 것으로 드러났다. 그러나 상관계수가 크지는 않으므로 해석에 주의가 필요하다. 셋째, 쓰기 결과 기대는 글 점수와 거의 상관이 없었다. 넷째, 쓰기 효능감과 쓰기 결과 기대 간의 상관이 매우 낮았다. 이상의 분석은 쓰기 효능감과 쓰기 결과 기대, 글 점수 간의 상관을 통계적으로 검증하였다는 점에서 의의가 있다. 그러나 특성화 고등학교의 남학생만을 참여대상자로 하였다는 한계점이 있으므로 해석에 주의가 요구된다. The purpose of this study was to analyze the correlation between high school students` writing self-efficacy, writing out come expectancy and writing score. Data was collected from high school first graders in Busan in February 2011. Researcher analyzed the correlation using the SPSS 18.0 version. First, the result showed that participants` writing self-efficacy was moderate and writing outcome expectancy was relatively high. Writing self-efficacy about task was lower than writing self-efficacy about component skill. Second, there was meaningful positive correlation between writing self-efficacy and writing score. Especially, the correlation between writing self-efficacy about task and writing score was higher than the correlation between writing self-efficacy about component skill and writing score. However, it has to be interpreted carefully because the correlation coefficient is not big. Third, there was almost no correlation between writing outcome expectancy and writing score. Fourth, correlation between writing self-efficacy and writing outcome expectancy was very low. This result is meaningful because of statistical verification of the correlation between writing self-efficacy, writing outcome expectancy and writing score. But the result has to be interpreted carefully considering this study`s limitation that all participants were specialized high school`s male students.

한국인에서 갑상선 질환

최건무(Kun Moo Choi),김옥영(Ok Young Kim) 대한외과학회 1991 Annals of Surgical Treatment and Research Vol.40 No.1

CNG/Diesel 혼소엔진의 기관성능 및 배출물 특성에 대한 연구

최건호(Gunho Choi),이상민(Sangmin Lee),김성훈(Sunghun Kim),임옥택(Ocktaeck Lim) 한국자동차공학회 2009 한국자동차공학회 학술대회 및 전시회 Vol.2009 No.11

CNG(Compressed Natural Gas)/Diesel dual-fuel engine uses CNG as a main fuel, and injects diesel only a little to achieve ignition. A existing diesel engine is remodeled into dual-fuel engine. So, it is expected that emissions will be reduced by using CNG which has little quantity of sulfur contents and carbon dioxide and reduce diesel consumption. Most of previous studies about CNG/Diesel dual-fuel engine was performed based on engine that has injection system of low pressure(about 250bar) mechanical type or EUI(Electronic Unit Injection) type. But in this study, experiment is performed all over operating range with the engine that injects diesel by high pressure(1300 ~ 1600bar) CRDi(Common Rail Direct injection) type, and injects CNG at intake port to premix. Then, identifying about engine performance and emission characteristics of CNG/Diesel dual-fuel engine.

CNG/Diesel Dual-Fuel 엔진의 CNG 혼합율에 따른 엔진성능 및 배출가스 특성에 관한 연구

최건호(Gunho Choi),이상민(Sangmin Lee),김성훈(Sunghun Kim),임옥택(Ocktaeck Lim) 한국자동차공학회 2010 한국자동차공학회 부문종합 학술대회 Vol.2010 No.5

CNG vehicle development is increased due to active investigation about high efficiency, low emission engine. In this study, Dual-Fuel engine is developed by remodeling part of existing diesel engine, and using CNG as main fuel and diesel as ignition source. Dual-Fuel engine is injecting CNG at intake port for making CNG/air pre-mixture, and injecting diesel by existing CRDI. Then, injection timing and injection quantity is optimized. Following engine rpm and load condition, CNG mixing ratio is changed and understanding about engine performance, emission characteristics. The result shows that torque and power is equal to existing diesel engine. And maximum diesel substitution ratio is more than 90%. PM is reduced than existing diesel engine, but NOx and HC is increased a little.

바터씨 팽대부에 발생한 악성 복합종양 1 예

최건무(Kun Moo Choi),엄대운(Dae Woon Eom) 한국간담췌외과학회 2007 한국간담췌외과학회지 Vol.11 No.4

질화규소의 고온정피로거동

최건,최배호,김기영,Choi, Guen,Choi, Bae-Ho,Kim, Ki-Yong 한국세라믹학회 1999 한국세라믹학회지 Vol.36 No.1

상압소결 질화규소에 대한 고온정피로 거동을 K-t(stress intensity/life test)법에 의해 조사하였다. 정피로 크랙성장속도는 온도의 증가와 함께 증가한다. 온도의 증가에 따라 크랙성장속도가 증가하는 이유는 온도 증가에 따라 파괴인성치가 감소하기 때문으로 판명되었다. 즉 정피로 크랙성장속도 da/dt를 da/dt=AK1m로 나타내면, 이 식의 정수 A는 파괴인성치의 파괴인성치의 함수이도, 지수 m은 온도나 파괴인성치에 관계없이 일정한 상수이다. 그러나 글래스상의 연화가 일어나는 고온의 경우 크랙성장속도는 이상의 관계로부터 벗어남을 발견하고, 그 이유에 대하여 고찰하였다. Elevated temperature static fatigue behavior of silicon has been investigated by stress intensity/life test method. Static fatigue crack growth rate increase with the increase of temperature. Such tendency is found to be mainly related to the decrease of fracture toughness with the increase of temperature. That is, when static fatigue crack growth rate, da/dt is expressed by da/dt=AK1m, a constant A is a function of fracture toughness Kc and the exponent m is a constant which is independent of temperature or Kc. However, in the case of high temperature that glass phase is softened, the crack growth rate is found to be deviated from the above relation. This reason is, thus, discussed.

고등학생 필자의 참고자료 활용 전략 분석

최건아 ( Geon Ah Choi ) 한국어교육학회(구 한국국어교육연구학회) 2013 국어교육 Vol.0 No.141

The purpose of this study was to investigate the ways student writers use source texts for their own composition. In this study, 60 high school students read 5 source texts and wrote a text using informations in those source texts. This study found out that 10th grade students tended to focus on source texts which contain informations being strongly related to the writing task`s topic. The results of participants` evaluation of 5 whole source texts` usefulness, however, was not unanimous. Some students` reason to evaluate source texts was based on the existence of useful informations; on the other hand, some students focused on their own reading ability, personal interest or learning. Also, participants tended to evaluate the result of their information selecting practice negatively rather than positively and felt that they struggled to read source texts and to select informations. This indicates that many students did not have sufficient experience to use source texts to write information texts. Educators need to find out ways to help student writers use source texts and select information proficiently.

『NHK日本語発音アクセント新辞典』의 優位語~許容語의 様相

최건식(Choi, Kunsik) 동북아시아문화학회 2020 동북아시아문화학회 국제학술대회 발표자료집 Vol.2020 No.10

As a result of the survey, first of all, it can be pointed out that the pattern of changes in these [predominant words-permitted words] was very large during the period of less than 20 years between the new edition (1998) and the new dictionary (2016). This seems to be the result of faithfully reflecting the changes in language during the period, along with the factor of increasing quantity, that about 6,000 headwords were added to the new dictionary. In addition, it was observed that it showed a slightly different phase difference from the general Japanese dictionary in comparison with the five dictionaries. This is because the dictionary is based on "pronunciation suitable for broadcasting use" based on a survey of NHK announcers and a vast database. Therefore, although NHK is advocating a common language, it is a special vocabulary called "broadcasting vocabulary". It is judged that the environment led to the results of such investigation. In particular, in the case of Rendaku, this difference is remarkable, which can be attributed to the linguistic characteristics of the Kanto region that prefer nasal sounds, as well as the soft pronunciation of sound sounds, which NHK announcers prefer.

대량 간절제 환자에서의 술전 간문맥 색전술의 의의

최건무(Kun Moo Choi),이승규(Sung Gyu Lee),민병철(Pyung Chul Min),성규보(Gyu Bo Sung) 대한외과학회 1995 Annals of Surgical Treatment and Research Vol.48 No.1

초기 후두암의 치료

최건,채성원,박호정,정광윤,최종욱,Choi, Geon,Chae, Sung-Won,Park, Ho-Jung,Jung, Kwang-Yoon,Choi, Jong-Ouck 대한기관식도과학회 1998 大韓氣管食道科學會誌 Vol.4 No.1

Background: Laryngeal cancer, the most common malignancy of head and neck, is being detected and treated in earlier and more effectively due to introduction of endoscope, continuous development of radiographic technology, and advancement in new surgical techniques such as laser surgery and conservation laryngeal surgery Objectives To compare the different treatment results for early laryngeal cancer to determine which methos provides the good prognosis. Materials and Methods: Retrospective study was done for 135 patients with early laryngeal squamous cell carcinoma(Stage I or II) who were treated at our institute between 1989 to 1996. There were 105 patients with glottic cancer(Stage I: 68 patients, Stage II:37 Patients) and 30 patients with supraglottic cancer(Stage I: 12 patients, Stage II:18 patients) Initial treatment included radiation therapy for 54 patients, endoscopic laser surgery for 8 patients, laryngofissure and cordectomy for 8 patients, vertical partial laryngectomy for 37 patients, supraglottic laryngecomy for 14 patients and supracricoid laryngectomy for 5 patiens, and total laryngectomy for 9 patients. Results : Salvage treatments, such as total laryngectomy, conservation laryngeal surgery, radiation therapy and neck dissection were performed for initial treatment failure with 9 patients after radiation therapy, 8 patients after conservation laryngeal surgery, 2 patients after endoscopic laser and 3 patients after total laryngectomy. Overall 3-year survival rate for glottic 71 was 92.4%, glottic f 84.3%, supraglottic 7172.7%, and supraglottic f was 63.%%. However, survival rate of the same stage was variable according to the choice of initial treatment. Conclusion New classification of the early laryngeal cancer was necessary and helpful for the choice of the initial treatment.