익렬유동의 수치해석에서의 복합 정렬-비정렬 격자계의 적용 연구

정향남,정희택 慶尙大學校 經營行政大學院 2004 工學硏究院論文集 Vol.20 No.-

Numerical simulation has been performed to examine the effects of the computational grids on the prediction of the flow characteristics inside the transonic turbine cascades. Three kinds of computational grids are applied to the high-turning transonic turbine rotor blades and are compared in the sense of stability and accuracy. In addition, the grid adaptation has been tried in order to improve the prediction of the blade performance.

FLUENT를 이용한 천음속 터빈익렬 유동장의 수치 시뮬레이션

정향남,정희택 경상대학교 생산기술연구소 2003 工學硏究院論文集 Vol.19 No.-

Numerical simulation of viscous compressible flow in turbomachinery cascade involves many problems due to the complex geometry of blade and flow phenomena. In the present study, numerical investigations have been performed to examine the transonic flow characteristics inside the turbine cascades. Commercial code? FLUENT was used to solve the compressible Navier-Stokes equations with the standard k- ε turbulence model. Multi-block H-type grids were applied to the high-turning transonic turbine rotor blades. Numerical results of three-dimensional analysis on the mid span have been compared with the experimental data and the numerical results of two-dimensional analysis. In addition, the three dimensional flow characteristics near the endwall have been analyzed to show the feasibility of the present flow solver as the numerical simulator.

수수로부터 아플라톡신B₁ 정량분석에 관한 연구

정향동,원옥남,구경림,류성렬 한국공업화학회 2003 응용화학 Vol.7 No.2

Aflatoxin B₁was known to have the strongest poisonous character among Aflatoxn compounds. To search the production of Aflatoxin B₁according to the change of temperature and relative humidity, millet incubated with Aspergillus flavus KCCM 35078 was incubated at 20℃, 25℃, 30℃, 25℃ and at relative humidity 50%, 60%, 70% and for incubation time 72, 96, 120, 144, 168, 192 hours. Production of Aflatoxin B₁shows that the highest production appeared at 25℃ and its relative humidity 70%. The result that was quantitatively analyzed by using HPLC was 23.35ppm, and by using fluorescence detector was 23.50ppm Production of Aflatoxin B₁shows that the lowed production appeared at 20℃ and its relative humidity 50%. The result that was Quantitatively analyzed by using HPLC was 6,26ppm, and by using fluorescence detector was 6.33ppm The structure of Aflatoxin B₁was identify with authentic sample by using instrumental analysis methods of MS, H-NMR, FT-IR, respectively.

아음속풍동의 제작과 난류경계층 구조의 변화에 관한 연구

李南榮,朴桂香,柳相信 한국항공대학교 1991 論文集 Vol.29 No.-

본 연구에서는 풍동의 활용성과 경제성, 장비설치 및 취급의 용이성등을 고려하여 요구풍속을 결정한 후 확산부, 정체실, 수축부, 시험부등을 설계하고, 제작된 풍동에 대한 성능검사를 실시하였다. 정체부와 시험부 수축비는 9이고 시험부의 단면은 406mm×406mm 이며 길이는 1,200mm 이다. 시험부에서 얻을 수 있는 최대속도는 송풍기 회전수 1,500rpm 일때 36m/sec이다. 송풍기 동력은 19kW 이며 송풍기 형태는 원심형 임펠러를 선택하였다. 시험부의 성능을 검사하기 위해 열선유속계를 사용하여 시험부 출구 단면에서의 속도분포와 난류강도를 조사하였다. 시험부의 속도는 5m/sec 에서 30m/sec 까지의 범위에서 난류강도는 0.5%이고 벽면경계층 두께를 고려하면 유효 단면적은 약 85%이다. 제작된 풍동에 에머리 페이퍼(emery paper) 또는 트리핑 와이어(tripping wire)를 부착한 매끈한 평판과 축대칭 3차원 물체를 장치하여 경계층 속의 흐름이 난류가 되도록 하였고 발생된 난류 경계층의 특성을 분석 하였다. In the present experimental study, the range of wind speed at the test section was determined by considering the availability, economy, installation and handling of the wind tunnel, and diffuser section, settling chamber, contraction section and test section of the wind tunnel were designed and manufactured to satisfy the prescribed wind speed range. Performance of the manufactured wind tunnel was tested according to the normal testing procedure. Contraction ratio of the test section to the settling chamber is 9 and the cross section of the test section is 406mm×406mm and the test section is 1200mm long. The maximum air speed at the test section is 36m/sec for the motor speed of 1500 rpm. A centrifugal type fan is used and the maximum power required is 19kw. The hot-wire anemometer system was employed to test the performance of the wind tunnel by measuring the velocity distribution and turbulent intensity at the exit of the test section. Measured values of turbulent intensity were less than 0.5% for the range of wind speed from 5m/sec to 30m/sec. The available cross sectional area of the test section was about 85%. Flat plate and axisymmetric three dimensional body were used as models to identify the boundary layer characteristics. The boundary layers were triggered by emery paper and/or tripping wire. The characteristics of the generated turbulent boundary layers were analyzed.

『단계』의 인용문들

김남향 慶尙大學校 1998 論文集 Vol.37 No.-

La citation represente un des aspects 여 travail intertextuel, Degres est un <intertexte> se composant d'un grand nombre de citations, qui refletent, resument, resument ou completent le recit de Vernier. En citant, le narrateur refere a une <autorite>, afin de convaincre le lecteur de la verite 여 texte. Le fait que le nombre des citations augmente dans les Ⅱeme et Ⅲeme parties de Degres pourrait s'expliquer par la tentative d'empecher que la description ne degenere en mensonge. La transformation 벼'opere la citation de i'epreuve de verite en epreuve d'authenticite est comparable a a la mutation de i'enquete en representation vraisemblable que nous avons deja signalee a l'interieur du systeme descriptif 여 recit de Vernier.

최대운동부하후 펜싱선수들의 심폐기능 분석

이금남,박후성,고향순 朝鮮大學校 스포츠科學硏究所 2006 스포츠科學硏究 Vol.17 No.-

This research got result following conclusion that analyze there is difference that keep in mind maximum oxygen intake amount, maximum heart rate, exercise continuance time connected with heart exhaust ability executing maximum department of athletics low class test by Bruce method using Teuredeumil to total 20 fencers'(Player10peoples, non-athletics lOpeoples) to search high school fencers' heart exhaust ability. 1. There was no difference that maximum oxygen intake amount(V02max), heart rate(HRmax), change of exercise continuance time between two experiment groups note at maximum department of athletics low class test (P <.05). 2. Change(VO_(2)) of oxygen intake amount appeared high in Fencer between two experiment groups at maximum department of athletics low class test but there was no difference that keep in mind (P <.05). 3. Heart rate change(HR) between the two experiment houses appeared more or less high in non-athletes gioup at maximum department of athletics low class test but there was no difference that keep in mind (P <.05) 4. At exercise continuance recorded 14minutes 89seconds in Fencer, and 12minutes 57seconds in non-athletes group fencer compare to non-athletes and keeps in mind as long appear (P <.05). 5. athlete players about all step of exercise appeared more or less high in step oxygen intake amount(VO_(2)) at all-out, and Fencers' appeared by 64.5±2.23(㎖ /㎏/min) and appeared from non-athletes to 52.6±2.40(ni(㎖ / ㎏/min) (P <.05).

BUTOR 소설의 <작중 예술작품들>

김남향 慶尙大學校 1990 論文集 Vol.29 No.1

Cette etdue se donne pour objet d'analyser, dans les romans de Michel Butor, les transformations progressives d'une structure permanente; celle des <oeuvres d'art dans l'oeuvre>. La problematique de <l'oeuvre dans l'oeuvre> occupe chez Butor une place considerable. Il suffit pour s'en convaincre d'ouvrir l'un ou l'autre de ses livres. L'evocation d'oeuvres d'art, qu'il s'agisse d'oeuvres imaginaires ou reelles, plastiques ou litteraires, singulieres ou plurielles, rapportees dans leur integralite ou reduites a l'etat de fragments, mieux qu'un theme ou qu'une antre structure, pourra nous conduire au centre de l'oeuvre et nous permettre d'en degager l'intentionalite signifiante. Pratiquant le genre du commentaire, nous etudierous, dans une premiere etape, la fonction formelle et semantique des oeuvres inserees dans l'economie de chaque livre. Ensuite nous essayerons de reinscrire nos analyses immannentes dans l'economie generale de l'oeuvre afin d'apprehender le projet de Butor dans son ensemble, d'en saisir les constantes et les variables et, surtout, d'en mesurer la portee et l'enjeu.

창의성 교육 실태 분석과 교육 정책적 과제

김순남,이병환,황향숙 경북대학교 사범대학부속 중등교육연구소 2003 중등교육연구 Vol.51 No.2

This study aimed to investigate the current status of creativity education and to proposed the political tasks. Far the purpose of this study, it took a survey method. Those of sampled were teachers of elementary, middle, high schools throughout the country. Survey domains were three; School environment, Domain concerned in class, Teaching-learning method. Each domain had regions. The summary of this study`s results were as follows: First, the administrative supports for creativity education were emphasized in schools, but low in executive aspects. Teachers were recognized inhibitory factors against fostering creativity in schools include amount of subject matter contents, too many students in a classroom, and so on. And also, climate for fostering creativity was lower as grade higher. Second, creative skills were lower usage as grade higher. Teachers regarded that they were lack of their specialty about creativity education, and had difficulty to find materials or programs for fostering creativity. Third, in teaching-learning process, survey indicated that usage of creative skills were high, but diff among schools and grades. Finally, recommendations of educational strategies for creativity education in schools were as follows: 1) formation of environmental climates and supports of executive aspects for creativity education. 2) Constitution in-service training programs for professional development. 3) Inclusion of precise assessment about the usage of creative methods in teaching-learning process. In conclusion, it is necessary to enhance creativity education should be improved with concrete action plans and educational policies.

여성의 피부관리실태와 관련요인

구재희,남철현,최연희,배향선,신옥순,양숙희,이명옥 慶山大學校 保健福祉硏究所 2002 保健福祉硏究 Vol.7 No.-

This study was conducted to analyze aspects of women's skin care and related factors in order to contribute to community residents's right skin care. The subjects of this study was 800 women who were 15 to 65 years old. Data were collected in Daegu City and Kyungsan City from June 21, 2002 to August 18, 2002. The results of this study can be summarized as follows. 1. According to socio-demographic characteristics of the respondents, 26.8% of them were in twenties. 50.9% of them was students at colleges or graduated from collges. 38.3% was students and 37.5% was housewives. 55.5% belonged to the middle economic class. 2. 47.9% of the respondents replied that they were in good health. 57.2% of them had fair skin, while 25.1% had dark skin. According to health condition of face skin, 61.5% was in regular condition, while 26.0% was in bad condition. 29.9% had drying face skin and 21.3% had neutral or complex character of face skin. 3. Among the reasons they had trouble with face skin, the proportion of having the rough skin was highest (25.0%). 16.6% replied that they had trouble with a lot of wrinkles and 16.3% replied that they had trouble with dark face skin. 25.4% responded that their face skin was too tight. 13.3% replied that they had trouble with scars. 4. The factors significantly influencing the experience of skin care were age, education level, residence, experience of side effect of cosmetics, experience of skin diseases on face or body, experience of trouble after receiving skin care, and experience of trouble with acne. From above results, it can be concluded that selection of proper skin care rooms is important in receiving desirable skin care and preventing side effect related to skin care. The women also must be cautious in selecting and using cosmetics and massage pack. The government, related organizations, and skin and beauty specialists must make efforts to develop education programs for healthy skin care.

손마사지가 허혈성 심질환 환자의 불안에 미치는 효과

현경선,이향련,공송심,윤경자,김현섭,김효남,최지원,김운정 성인간호학회 2001 성인간호학회지 Vol.13 No.2

The purpose of this study was to investigate the effect of a hand massage program on anxiety, vital sign and pain in clients with ischemic heart disease. The design utilized for this stuffy was quail-experimental with a nonequivalent control group non-synchronized design The subjects were fifty-four patients, twenty-eight for the experimental and twenty-six for the control group, who were admitted with ischemic heart diease at a cardiac intensive care unfit in K medical center of K university. This study was carried out from May, 1999 to March, 2000. The level of anxiety and pain measured by Visual Analogue Scale, systolic blood pressure, diastolic blood pressure and pulse rate were measured before and after hand massage, the state of Anxiety was measured by the Spielberger (1970) scale at admission and after hand massage for three days. The collected data were processed by using the SPSS PC program and analyzed using χ2-test and t-test. The result of this study are as follows : 1. The scores of VAS anxiety and State of anxiety of the experimental group were lower than those of the control group. 2. The degree of systolic blond pressure, diastolic blood pressure and pulse rate of the experimental group were lower than that of the control group. 3. The score of VAS pain of the experimental group was lower than that of the control group. The results suggested that hand massage can decrease VAS anxiety, State of anxiety, vital signs and VAS pain of patients who were admitted with ischemic heart disease at cardiac intensive care unit Therefore, It Is proposed that hand massage is an appropriate nursing intervention to relieve anxiety of the patients who were admitted with ischemic heart disease at a cardiac intensive care unit.