마인드맵을 이용한 수학학습이 학생들에게 미치는 영향

정인철,박달원,박혜연 공주대학교 과학교육연구소 2004 과학교육연구 Vol.35 No.-

본 연구의 동기는 제7차 교육과정에 따라 21세기에 주도적으로 지적 가치를 창조할 수 있는 학생들이 교육될 수 있도록 돕기 위해 시작되었다. 마인드맵은 1) 학생들의 마인드맵 도식이 수학적 경향이나 정서적 측면에 어떻게 영향을 주는지를 조사하고 2) 학생들이 그리는 마인드맵의 형태나 특성을 연구하고 3) 마인드맵을 그리는 과정에서 학생들이 겪는 장점과 단점을 분석하고 또 그들을 극복할 수 있는 제안을 제공함으로써 해답을 찾게 하는 것이다. 연구 결과에 의하면 학생들은 마인드맵을 그림으로써 훨씬 더 동기가 유발되는 것을 보여 주었다. 마인드맵에는 나무형과 방사형의 두 형태가 있으며 각 형태는 그 자신의 장점을 가지고 있다. 그러나 좋은 마인드맵이 되기 위해 가장 중요한 요인은 각 개념이 어디에, 어떻게 위치하고 연결되는가 하는 것이다. 학생들이 마인드맵을 그림으로써 배우는 것에 대한 더 큰 구조를 알게 도와주는 하는 것이 사실이더라도 주의해야 할 여러 어려움이 있다. 본 연구는 이런 시도가 다양한 수준의 학생이나 내용으로 확대하도록 주장하고자 한다. This study was initiated by the idea to help students to be more ideally educational following the 7th curriculum that seeks the proactive students along with creativity for the 21st century, Mind-map was the main tool throughout the study and this was performed to find answers for the following questions : 1) to examine how students' drawing a mind-map affects their mathematical tendency or emotional aspects (motivation) for study, interest, etc); 2) to investigate the types and characteristics of mind-maps that students draw; 3) to analyze advantages and obstacles that they experience during the process of drawing a mind-map and provide some suggestions for overcoming them. The research shows that students were highly motivated by the drawing a mind-map. There are types of mind-maps: tree shape and radial shape, and each shape has its own advantages. But the more important factor for being a good mind-map is where and how each concept is located and connected. Although it is true that drawing a mind-map helped students to see the bigger structure of what they learned, but there are several hardships taken care of. The study suggests to extend the experiment to various levels of students and diverse contents.

운동처방 유형이 중년여성의 혈중지질 및 체지방량에 미치는 영향

정혜윤,임달식,박후성,전용욱,김재호,노재성 朝鮮大學校 스포츠科學硏究所 2007 스포츠科學硏究 Vol.18 No.-

This study was to examine the effects of Aerobic exercise program of body fat and mood state for women with obesity, and to apply this exercise program to the treatment and the promotion of health maintenance of obese women as a nursing intervention. Date were analysed by SPSS Win 12.0 program. Descriptive statistics used on demographic data of the participants was analysed in real number and percentage, body fat and the difference in mood state before and after the walking exercise program were analysed using the paired t-test . The results of this study were as follows: With administration of this program, so, the Aerobic exercise program showed and effect of the decrease for women with obesity and it also had an effect on the decrease of percentage of body fat for them. According to the results of this study, the walking exercise program as a nursing intervention had an effect of the body fat for women with obesity. however, the program did not prove the statistical significance for the change of mood state. Aerobic exercise program showed that effect is though fat woman's sieve local rate, Decrease that T-C keeps in mind from exercise rakeful and great kindness change to 207.8±23.2 as statistical difference that appeared, and decreased from great kindness change to shame upper HDL-C's exercise ago but keep in mind as statistical appear, Is looked that decrease that change before LDL-C's exercise keeps in mind as statistical by 138.1±20.5 appears. When see on the basis of result of something wrong continuous and regular abortion small success exercise because have middle age woman's physical strength E according to exercise form health promotion plan though to effect by Iteulgeot is considered, and decrease to note sieving amount power of a number and sieve local amount and appeared that abortion small success exercise exerts more affirmative effect.

복수의 자율이동로봇의 협조운동에 관한 연구

정원갑,최유식,서호철,이석규,이달해 영남대학교 공업기술연구소 1999 工業技術硏究所論文集 Vol.27 No.2

This paper proposes a fuzzy algorithm for cooperative behaviors of multiple autonomous mobile robots. Each robot makes decision of his behavior based on the information obtained by ultrasonic sensors to measure the position and angles of other robots. To enhance the industrial applicability of the suggested algorithm, we add disturbances of error angle caused by wheel steering when autonomous mobile robot navigates toward next destination point. This algorithm uses the position and velocity information of both the nearest robot and other robots within the detective radius of sensor with different weighting. Based on the fuzzy rule table and fuzzy inference, we obtain the rotational angle of the robots. The effectiveness of the proposed algorithm is shown by some computer simulations where a group of mobile robots encircles with equi-interval. In addition each robots is given weighting value to avoid the wall. Finally, the suggested algorithm shows that the more robots exist, the more effective it is.

首都圈 衛星都市의 住民福祉向上을 위한 市議會와 行政機關의 役割에 관한 硏究 : Centering Around Koyang-Shi Kyung Ki-Do Area. (京畿道 高揚市를 中心으로)

윤석달,박오화,함영훈,황정룡,허희영 한국항공대학교 1993 論文集 Vol.31 No.-

地方化時代의 到來로 高揚市는 많은 變化가 豫想되고 있다. 1980年부터 繼續的으로 論議되던 地方自治의 問題가 지금은 現實化되어 1991年 4月에는 基礎地方自治의 議會를 構成하고 6月에는 廣域自治團體의 議會를 構成하였고 머지않은 將來 에 地方自治團體의 長을 選出할 豫定이다. 앞으로 많은 施行錯誤가 있을 수 있겠으나 地方自治時代에 돌입한 것은 누구 도 否認 할 수 없는 사실이다. 1997年경의 住民構成은 1990年代初期의 高揚市에 居住하고 있던 原住民과 一山을 포함한 新高揚 開發地域에 90萬의 新 入住者로 구성될 것이며, 이러한 高揚市 住民構成의 變化는 地方自治에 커다란 衝擊要因으로 작용될 것이다. 新.原住民의 要求를 調和하는 問題는 여러 形態로 나타날 수 있으나 住民福祉라는 側面이 매우 강하게 대두될 것이다. 高揚市의 福祉活動은 生活保護者들을 위한 특수한 경우를 제외하고는 거의 전무한 상태이다. 地方自治制度가 어느정도 安定的인 국면으로 접어들면, 地域的 次元에서 市民 모두를 위한 福祉活動이 深度있게 展開되어야 할 것이다. 市行政機 關과 市議會는 兒童福祉, 婦女福祉, 老人福祉및 醫療福祉에 대한 現況울 把握하고 이에 대한 해결의 優先順位를 결정하 여 다가오는 人口의 增加에 따른 福祉需要를 충족시켜 나가야 할 것이다. 福祉需要에 대한 優先順位를 硏究者들이 제시하여 보면 託兒施設과 더불어 綜合病院施設을 擴充하여 市民들에게 奉仕 하는 태세를 體系化하여야 할 것이며 그밖에는 施設을 擴充하는 方式보다는 年齡과 性別 및 職業 등의 基準에 맞게 "프 로그램"을 積極的으로 開發하는 努力이 경주되어야 할 것이다. 그러으로써 量的인 意味에서 뿐만이 아니라 質的인 意味 에서 福祉活動을 展開할 수 있는 基盤을 造成할 수 있을 것이다. It is expected that Koyang City have lots of changes according to the emergence of Decentralization era. Nowdays local self-government has been realized since its disscussion in 1980. On april, 1991, the assembly of basic self-government was established, and the assembly of extensive self-government constructed on june, 1991. The chairman of local-government assembly is supposed to be elected in the new future. None can deny the beginning of local-government era inspite of potential trial and errors. Population structure in 1997 is expected to be composed of the existing civilians of Koyang City in early 1990's and about 0.90millions of new comers in new cities including llsan area, and he change of the city population will significant impacts on the self-government scheme of Koyang City. The problem to coordinate desires of existing civilians and that of new comers might be embodied in many kinds of aspects, but welfare-raising will be strengthed first of all. Existing welfare programme of Koyang City dosen't show any signigicant activities except the case of Green Card programme. It is desirable that whole-sideed welfare programme be perfomed by local levels in the stage of staionary self-government systems. Administrative institutions and assembly of city should survey and research the present situations of children welfare, female welfare, the old age welfare, and medical welfare, and decide their priorities to meet increasing desires coming from rapid increase of city-population. We, researchers, propose several outstanding problems by priority as follows; to expand medical institutions and public nursery schools accompanies by strenthening the attitude of government employees for public service, to develop various programmes in order to activate many exiting institutions more efficiently rather than to build new institutions needed, in consideration of ages, sex and occupations of their users. If these propositions accomplished the welfare programme will have cornerstone to enrich its activities as well as activities as well as enlarge it bounderies.

맥진단기 채널의 ISI감소를 위한 적응필터

윤달황,정찬길,소경순 世明대학교 한의학연구소 1998 韓醫學硏究所 論文集 Vol.1 No.-

본 논문은 맥파검출기의 채널간에 발생하는 상호신호간섭을 감소시키기 위해 Sign 알고리듬을 적용한다. 이 알고리듬은 맥파가 저주파이고 매우 천천히 변하는 환경하에서 기존의 알고리듬과 비교하여 보다 유리한 성능을 가지며, 이를 이용하여 분할등화기를 구현한다. We propose the Sign algorithm and analyze the convergence characteristics of it. To evaluate the performance of proposed Sign algorithm, fractionally spaced equalizer is used. Especially, we present that this method have the advantages for the condition having the low-frequency and slow speed.

3채널 맥파 검출장치의 GUI 개발

윤달환,정찬길,소경순 世明대학교 한의학연구소 1998 韓醫學硏究所 論文集 Vol.1 No.-

한의학은 개념적이고 주관적인 임상정보를 과학적 데이터화하여 환자를 치료하고자 한의의료장비의 응용에 많은 노력을 하고 있다. 맥파를 검출하기 위해서는 센서에 가해지는 압력, 센서 구동부의 운동 등 여러 가지 파라미터가 있다. 본 논문은 맥진의 정확한 맥상을 검출하기 위하여 3채녈 맥파검출 헤드장치 구동부를 유연하게 동작하도록 시스템을 개발하고, 기존의 양단 스위치 동작에 의한 헤드부의 모터운동을 제거함과 동시에 GUI형태로 맥진시스템을 구성한다. 특히 맥진정보를 받아들이는 寸ㆍ關ㆍ尺 헤드부의 정확한 동작이 맥진시스템의 성능을 향상시키는 역할을 하며, 이는 임상판정의 정확성을 기할 수 있도록 한다. In Oriental medicine, most of the medical examination of a patient depend on subjective explanation of self-patient. The application of an apparatus has an important significance in ensuring the objectivity of clinical information and in promoting the reproductivity and stability through the qualification and quantization. This paper development the pulse diagnostic apparatus of 3-channel type to detect exact pulsatory motion of a pulse wave, which is the type of GUI(graphic user interface) that one have the faculty of smoothing motor and the driving part of non-swich operating the sensor head. This system increase the function of pulse diagnosis and support the clinical decision.

매체순환식 가스연소기 적용을 위한 Ni계 및 NiO계 산소공여입자의 반응특성

류호정,배달희,조성호,진경태 한국화학공학회 2004 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.42 No.1

매체순환식 가스연소기에 적용하기 위한 최적의 산소공여입자를 결정하기 위해 금속산화물(NiO)의 함량 변화에 따라 네 가지 (NiO 26, 44, 58, 78wt%)의 산소공여입자를 제조하여 열중량 분석기에서 환원반응특성을 측정 및 비교하였다. 제조된 입자들 중에서 NiO 약 60wt%인 입자가 산소전달능력 및 반응속도 면에서 다른 입자들에 비해 우수한 성능을 나타내었다. 산소공여입자의 제조과정에서 금속산화물 형태의 영향을 살펴보기 위해 금속산화물의 출발물질로 Ni과 NiO를 사용하여 NiO 함량이 동일한(약 60%) 두 종류의 입자를 제조하였으며 열중량 분석기와 고정층 반응기를 이용하여 반응속도, 재생성, 환원반응 유지시간 및 CO_(2) 선택도 등을 측정 및 고찰하였다. 금속산화물의 출발물질로 NiO를 사용한 입자가 Ni을 사용한 입자에 비해 반복 실험시에 정상반응조건에 빨리 도달하였고 반응속도와 CO_(2) 선택도가 높았으며 환원반응 유지시간인 길게 나타났다. 실험결과에 의해 본 연구에서 고려한 산소공여입자 중에서 금속산화물의 출발물질로 NiO를 사용한 NiO 함량이 60wt%인 입자를 최적의 산소공여입자로 선정하였다. To find a suitable oxygen carrier particle for chemical-looping combustor, four kinds of particles (NiO 26, 44, 58, 78wt%) were prepared and the reactivity of the reduction was measured and investigated by a thermo-gravimetrical analyzer. From the viewpoint of oxygen transfer capacity and reaction rate, the particle containing 60wt% of NiO showed better performance than the other particles. Also, we have prepared two kinds of oxygen carrier particles to investigate the effect of the starting material for a metal oxide component(i.e., Ni based and NiO based particles, where the weight percents of both samples were set at 60wt% as NiO). The reaction rate, regenerative ability, duration of the reduction, and CO₂ selectivity were easured and investigated by a thermo-gravimetrical analyzer and a fixed bed reactor. The results obtained here indicated that the NiO based oxygen carrier particle containing 60wt% of NiO showed better regenerative ability, reaction rate, CO₂ selectivity, and duration of the reduction, compared with the other particles, therefore we selected this particle as an optimum oxygen carrier particle.

冷戰과 脫冷戰의 南北關係

張達重,李貞澈 서울大學校 國際問題硏究所 2002 세계정치 Vol.- No.24

교양 교육과정의 문제점과 개선 방안 : 조선대학교 건학이념 및 교육목적 달성을 위한 교양 교육과정

이달석,조주환,노봉오,김정주 조선대학교 사범대학 부설 교과교육연구소 1998 敎科敎育硏究 Vol.1 No.1

실험적 간암의 전암병변에 관한 면역 조직화학적 및 유세포 계측 연구 : C-ras, C-erb B2, Proliferating Cell Nuclear Antigen 및 C-myc의 변동 Expression of C-ras, C-erb B2, PCNA, and C-myc

이중달,김종만,고영혜,김재영 한양대학교 의과대학 1994 한양의대 학술지 Vol.14 No.1

To investigate the role of oncogenes in the hepatocarcinogenesis, author had undertaken an experimental study of hepatic carcinogenesis induced in 50 rats by feeding 2-acetylaminofluorene(2-AAF) in diet. The animals were sacrificed at 2, 4, 6, 8, 12, 16, 27, and 36 weeks after 2-AAF administration, and each liver was immunostained with monoclonal antibodies for c-ras, c-erb B2, and proliferating cell nuclear antigen(PCNA), and analysed by flow cytometry for c-myc oncoprotein. 1.The control livers were negative for expression of c-ras, c-erb B2, and c-myc oncoprotein, and positive for PCNA in 0.2% of hepatic cells. 2.The oval cells were markedly proliferated at 4 weeks after 2-AAF administration. They eventually became differentialted into bile ductular cells and small hepatocytes. 3.The oval cells and small hepatocytes showed high positive rate for PCNA with strong reaction for c=ras, c-erb B2, and c-myc oncoprotein whereas bile ductular cells failed to react for c-ras and c-erb B2. 4.Most hepatocytes in regenerative nodules lost the expression for c-myc, c-ras, and c-erb B2, although the oncoproteins persisted in some hepatocytes in the nodules. 5.Hepatocellular carcinoma of trabecular type and undifferentiated carcinoma were induced by 36 weeks after 2-AAF administration. The undifferentiated carcinoma cells expressed both PCNA and c-erb B2 oncoprotein rather strongly. Above results suggested that in the early phase of the experiment, c-ras, c-erb B2, and c-myc oncogenes were activated and stimulated to proliferation makes the oval cells to e transformed into malignant cells. However, the findings that most oval cells were differented into reversible cells in regenerating nodules suggested that overexpression of these oncogenes might not be sufficient to obtain irreversible phenotype of malignant cells. Also strong expression of oncoproteins and high PCNA positive rate in small hepatocytes and in a few cells of the hyperplastic nodules suggested that the pathway of the cancer might go through the development of oval cells to small hepatocytes to nodules and eventually to cancer. However, the results that most hepatocytes in the nodules lost oncoproteins and development of undifferentiated carcinoma in the absence of nodule formation suggested that the hepatocellular carcinoma arose from oval cells directly without a morphologic intermediate.