Plant regeneration from callus of Iris odaesanensis Y. N. Lee native to Korea via organogenesis

Bae, Kee-Hwa,Yoo, Kyoung-Hwa,Lee, Mi-Hyun,Jeong, Jae-Hun,Choi, Yong-Eui,Yoon, Eui-Soo The Korean Society of Plant Biotechnology 2013 식물생명공학회지 Vol.40 No.3

Iris odaesanensis Y. N. Lee. is an important endangered and native plant belonging to the family Iridaceae in Korea. This study describes a method for rapid micropropagation of this species via from leaf, rhizome and root explants derived calli. Leaf, rhizome and root explants were cultured on Murashige and Skoog (MS) medium supplemented with 2,4-dichlorophenoxy acetic acid (2,4-D) for callus induction. Rhizome explants yielded calli at a frequency of 72% when cultured at 1.0 mg/l 2,4-D. Calli were maintained at 1.0 mg/l 2,4-D. These calli were transferred to MS medium supplemented with 0, 0.5, 1.0, and 2.0 mg/l 2,4-D in combination with 0, 0.5, 1.0, and 3.0 mg/l BA for adventitious shoot induction. The highest number of adventitious shoot (228.9 per petri-dish) were formed at 1.0 mg/l 2,4-D and 1.0 mg/l BA. WPM medium was the best to convert calli into plantlets, where up to 98.2% of calli were regenerated into plantlets. This in vitro propagation protocol should be useful for conservation of this endangered plant.

학교 교육으로 매체 언어를 실행하는 방안

이경화 한국교원대학교 한국어문교육연구소 2000 한국어문교육 Vol.9 No.-

침적 모형에 의한 습성침적 플럭스 수치모의

이화운,문난경,임주연 한국환경과학회 2002 한국환경과학회지 Vol.11 No.12

The purpose of this study is to estimate wet deposition flux and to investigate wet deposition characteristics by using the ADOM model. Wet deposition flux of high reactive SO_2 is estimated by applying observed meteorological parameters and concentrations of chemical species to the ADOM model. Wet deposition is largely dependent on large scale precipitation and cloud thickness. Wet deposition flux of sulfate increases, but wet deposition flux of SO_2 is small. On the whole, the pattern of sulfate flux agrees with the typical pattern of sulfate wet deposition that is high in the summer(July) and low in the winter(January)

탄성반력의 영향에 따른 직교 이방성 복합판의 고유 진동 해석

정영화,심도식,김경진,이세진 江原大學校 産業技術硏究所 1997 産業技術硏究 Vol.17 No.-

In this paper, the result of application of vibration method to the orthotropic plates with free edges supported on elastic foundation and with a pair of opposite edges under axial forces is presented. Such plates represent the concrete highway slab and hybrid composite pavement of bridges. The reinforced concrete slab can be assumed as a special orthotropic plate, as a close approximation. The highway slab is supported on elastic foundation, with free boundaries. Sometimes, the pair of edges perpendicular to the traffic direction amy be subject to the axial forces. The plate is subject to the concentrated load/loads, in the form of traffic loads, or the test equipments. Finite difference method is used to obtain the deflection influence surfaces needed for vibration analysis. The influence of the modulus of the foundation, the aspect ration of the plate, and the magnitudes of the axial forces and the concentrated attached mass on the plate, under the natural frequency is thoroughly studied.

교정치료와 관련된 치조골 높이 변화에 대한 연구

강경화,이흥수,태기출,김상철 원광대학교 생체재료·매식연구소 1997 원광생체재료·매식 Vol.6 No.2

영아보육 일과에 나타난 질적 보육의 장애요인 분석

유연화,최경애,이정란 경복대학 2004 京福論叢 Vol.8 No.-

본 연구는 질적 연구를 통해 영아보육일과에 나타난 질적 보육의 장애요인을 분석함으로써 우리나라 영아보육 현장의 생태학적 특성을 이해하는데 목적이 있다. 보육시설의 질적 수준과 관련된 생태적 특성을 분석하기 위해 서울·경기 지역의 9개 보육시설을 참여관찰하고 영아반 교사와 시설장을 심층 면접하였다. 연구 결과, 협소한 보육실 등 물리적 환경의 열악함, 영아기 프로그램에 대한 이해 및 영아에게 적합한 교수전략의 부족, 지나치게 집단적인 교육과정 운영 및 일과지도, 비위생적인 건강관리태도, 영아용 실외놀이 환경의 부족, 보육교사의 열악한 근무 여건, 조기 학습에 대한 학부모의 압력 등이 관찰대상 영아보육 프로그램의 질을 저하시키는 장애요인으로 지적되었다. The purpose of this study is to understand the ecological characteristics of infant/toddler care program by analyzing major factors of barriers about the quality of infant/toddler care center. The main research consisted of the qualitative research, and 9 infant/toddler centers locate in Seoul and Gyeong-gi province. As findings of research, It pointed out some problems of infant/toddler care program which were observing target. It's problems were 1)lack of physical environment, specially small-crowded room, 2)lack of understand on the developmentally appropriate practice and instruction for infant/toddler care, 3)excessive grouping of activity and care, 4)unsuitable attitude of health care, 5)lack of out door environment for infant/toddler, 6)bad working condition of teachers, 7)negative attitude and pressure of parents toward ealy learning.

법률비서 : 합동법률사무소 변호사 비서를 중심으로

구은경,송화영,문선화,이유경,정혜영,최보인 이화여자대학교 법정대학 비서학과 1995 비서학연구 Vol.- No.15

초경합금 소재 LCU_CL 코어의 초정밀 연삭 특성에 관한 연구

정상화,차경래,김현욱,이봉주 한국공작기계학회 2005 한국공작기계학회 춘계학술대회논문집 Vol.2005 No.-

As the various manufacturing technology of optical glass is developed, the aspherical lenses are applied to many fields. However, It is still very difficult to manufacture glass lens because of the high cost and the short life of core. In recent years, the demands of the aspherical glass lenses increase since it is difficult to obtain the desirable performance in the plastic lens. In the glass mold lens, it has merits of high productivity and reproductivity since lens is manufactured by the only forming with high precision mold. The fabricating conditions for glass mold lens are glass surface that does not cause fusion, viscosity of 108-1013 poise for the 0.2㎛ accuracy, and viscoelasticity for the roughness less than 100 angstrom. In this thesis, ultra-precision grinding characteristics of tungsten carbide for forming the aspherical glass lens core were studied and the result of it is applied to manufacture the tungsten carbide-base core of the glass lens used to the laser scanning unit and the camera phone.

서양 여성의 헤드드레스 변천에 관한 연구 : 고대부터 중세까지 from ancient times to the middle gaes

김경화,김태년,김경애,이승옥 우석대학교 자원개발연구소 1997 자원개발연구소논문집 Vol.2 No.-

Costume has expressed the life style and influence on natural and social environment, The purpose of this study is to understand changes of hair style and millinery life in the west. The data used in this study included in the literature on this subject. The research results can be summarized as follows. 1. A hair style of ancient times was frizz or chignon or dyed hair style. Sometimes, they wore wigs of false hair, or put on a head kerchief. Millinery has been not worn until then. 2. In the middle ages, the hat serve to symbolize the social rank or authority or religion. Turbans were worn which concealed the hair. The hair style were large stuffed rolls over which the wimple was sometimes draped. These stuffed rolls were also used to form some shapes of the hennin, principally the heart-shaped and circular cone style. The hennin was brought to France by Isabella of Bavaria in the latter part of the fourteenth century and its vogue lasted a hundred years. There were many styles of the hennin, invariably draped with a veil, floating or with wired edge. They became so extravagant in size that I found it necessary to regulate the height according to the socal position of the wearer.

폐흡충에 의한 무균성 노흉에 대한 돼지꼬리형 도관(pig-tail catheter)을 이용한 치료의 효과

한경택,권세훈,김형호,하재화,선길홍,권용은,윤성호,이승일 朝鮮大學校 附設 醫學硏究所 2006 The Medical Journal of Chosun University Vol.31 No.3

Background: Pulmonary paragonimiasis is caused by consumption of raw or improperlycooked crustacea infected with the laval stage (metacercaria) of Paragonimus westermani. The most characteristic symptoms were rust-colored sputum and cough. Paragonimiasis causes pleural thickening or effusion in 48% of the patients. Pleuro-pulmonary paragonimiasis can be easily overlooked by physicians who do not suspect this disease in the differential diagnosis. Method: We compared the outcomes of 11 patients with paragonimus empyema managed either through thoracotomy or pig-tail catheter drain. These patients were confirmed by food history, clinical and radiological findings, and laboratory data. Results: The male and female ratio was 1.75 : 1, and mean age was 40.0 ± 13.5 years. AII patients had pulmonary symptoms such as cough or chest pain. Serum-ELISA for paragonimiasis were all positive (mean titer was 0.57). AII patients had pleural effusion in radiological findings( 2 patients had bilateral pleural effusion). All patients received praziquantel (75 ㎎/㎏/day for 3days). Two patients were treated with thoracotomy and nine patients were treated with pig-tail drain. Hospital stay were 14.5 days in thoracotomy group and 5.6 days in pig-tail group respectively, Conclusion: Compared to the conventional thoracotomy grouP, the patients with paragonimus empyema who received pig-tail catheters had a significantly-decreased period of drain in situ, were clinically improved earlier, and were discharged earlier.