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.

骨盤炎患者 1例에 대한 症例報告

이보라,이정은,박경미,정진홍,유동열 대전대학교 한방병원 2001 惠和醫學 Vol.10 No.1

After treating a patient suffering from pelvic inflammatory disease, a significant result is gained as follows. This study was done from the patient who were at the oriental Medicine Hospital of Daejeon university during 15 days, from 12. 12 to 12. 26, 2001. A 27-year-old patient had complained an abdominal pain, chest discomfort, nausea, vomiting, urination difficulty and constipation. During the hospital periods, the kinds of therapy are acupuncture, moxibustion, herb-med and physical therapy. Given the treatment, she felt so satisfied about her symptom's improvement. But as a result of Ultrasonogram of pelvis, she had multiple follicles on the right ovary, so it had to be given a surgical operation. For the surgical operation, she was transferred to the Chungnam University Hospital

지표면 wetness에 따른 오존의 건성침적속도 특성

이화운,김유근,문난경 한국환경과학회 2003 한국환경과학회지 Vol.12 No.4

It has been researched the relationship between deposition velocity and factors which could affect the deposition phenomena and deposition velocity also has been estimated for several land-use types. The typical deposition velocities are complex functions of surface types, atmospheric stabilities, friction velocities, air pollutants and so on. The canopy resistance is major contribution to the model's total resistance for O_3. Canopy wetness is also an important factor to calculate deposition velocity, We considered the canopy wetness as canopy water content(CWC) in our Model, But, it is not easy to observe CWC over each land-use types. In this study, we use CWC observed by EMEFS(CANADA Environment Service, 1988) to examine the influence of CWC in estimation of O_3 dry deposition velocity(V_4) in summertime. The value of O_3 V_4 range 0.2~0.7㎝ s^-4 on dry surface and 0.01~0.35㎝ s^-4 on wet surface in daytime.

다발성 외상시 응급 초음파검사의 의의

이강현,임경수,김선만,김영식,황성오,유수영,강성준 대한응급의학회 1995 대한응급의학회지 Vol.6 No.1

The Evaluation of blunt abdominal trauma is clinically challenging. Abdominal computed to-mography(CT) and diagnostic peritoneal lavage(DPL) has become primary diagnostic modali-ty in advanced trauma life support(ATLS). But DPL is invasive study with potential for the patients. Monitoring and resuscitation are usually suboptimal during there examinations. We examined the efficacy and role of emergency ultrasonographic(US) studies in the initial abdominal evaluation of blunt trauma patients. A prospective study was carried out on 101 blunt trauma patients from 1994, June to September. 101 patients underwent real-time US ex-amination of the chest and abdomen. Indication for emergency US included the cases of shock (systolic blood pressure<90mmHg) or tachycardia (pulse rate/min.>100) in blunt trauma pa-tients. US showed a sensitivity of 96.2%, specificity 98%, accuracy 97% in regard to indica-tion for surgery in case of blunt abdominal or thoracic trauma. US saves time, and it can be performed during the emergency care in the emergency department. US showes high sensitivity and specificty, and is the method of first choice in the evaluation of blunt trauma.

RFID와 음성 인터페이스를 이용한 아동용 체감형 게임 개발

유재권,이경미 덕성여자대학교 자연과학연구소 2011 자연과학 논문집 Vol.17 No.-

본 논문에서는 만 3~5세 아동의 발달 과정에 맞는 인터페이스를 사용하여 개발된 체감형 게임을 소개한다. 이 게임에 사용된 기술은 RFID 기술과 음성인식 시스템이다. 개발된 게임은 아동이 RFID 태그를 이용하여 직접 손으로 물체를 만져가면서 게임을 진행함으로써 이전 컴퓨터 게임보다 좀 더 아동 중심의 친화적인 인터페이스를 제공한다. 아동에 맞춰진 음성인식 시스템을 위해 만 3~5세 아동 대상의 음성 데이터베이스(DB)를 구축하고 수집된 음성 자료를 활용하여 음성인식 시스템을 구현한다. 이렇게 구현된 음성인식 시스템은 아동이 실제 보드게임을 즐기듯이 음성 인터페이스로 게임을 진행할 수 있도록 한다. 이로써 개발된 게임은 아동들에게 실내외 놀이 공간에서 일어날 수 있는 친숙하고 다양한 경험을 통해 정서적 표현 및 정서적 문제를 해결할 수 있는 기회를 제공하여 아동의 자기정서표현 및 타인정서이해 향상에 초점을 둔다. 또한 아동에 맞춰진 음성 인터페이스를 사용함으로써 언어 발달에도 도움을 줄 수 있다.

혼수상태의 외상환자에서 초음파를 이용한 흉부 및 복부손상의 진단

임경수,이강현,이진웅,이부수,황성오,유수영,강성준 대한응급의학회 1995 대한응급의학회지 Vol.6 No.1

The need for rapid diagnosis and treatment of life-threatening thoracic and intra-abdominal injury result in controversy over the appropriate triage of unconscious blunt trauma patients. To aid in early decisions for these patients, a prospective analysis of 98 patients with glasgow coma scale(GCS) scores≤8 was undertaken. Although intra-thoracic and intra-abdominal injuries were frequently identified based on systolic blood ressure, the use of clinical signs alone resulted in more missed injuries than did using the emergency ultrasonography. In normotensive patients(n=34), intra-thoracic injuries was identified in one patient(2.9%), and intra-abdominal injuries were in 7 patients(20.6%). In shock(systolic blood pressure<90mmHg) Pa-tients(n=64), thoracic injuries and intra-abdominal injuries were diagnosed in 8(12.5%) and 27 patients(42.3%), thoracic and abdominal combined injuries were identified in 11 patients(17.2%). The sensitivity, specificity, and accuracy of emergency ultrasonography were 96.3%, 91.7%, 94.9%. This study suggests that all unconscious trauma patients undergo immediate emergency ultrasonography to prevent missing life-threatening injuries.

용인 자연농원 장미원의 이용후 평가에 관한 연구

김유일,노경아,이성학 성균관대학교 생명과학자원연구소 1995 生命資源科學硏究 Vol.2 No.1

The POE (Post Occupancy Evaluation) was carried out to provide basic behavioral knowledge for its planning and management of the Rose garden at Yong-In Farmland. Through its users a total of 1545 questionnaire were completed. They were designed by four sets of variables, such as behavoir pattern, motivation for visting, post-use evaluation, and users demographic variables. The findings are as follows: Firstly, descriptive statistics were employed to analyze behavoir pattems and users' demographic varialbes. As a result, 86% of visitors lived in Kyoung-Ki Do and Seoul : most of the vistiors is in their twenties and thirties : most of visitors were accompanied by their families, relatives and lovers : 66% of vistiors came by cars to Yong-In Farmland : 47% of visitors stayed for 1-2 hours in average. Secondly, factor analysis was used in order to group satisfaction factors. Five factors are : 'manegement of the garden', 'rose appearance', 'design and aesthetics', 'lighting and sound', and 'theme display'. Thirdly, regression analysis was used to examine the sources of satisfaction. The results of regression analysis shows that 42% of total variances was explained by ten variables. The most effective variable is 'the aspect of rose condition and appearance'. The overall evaluation for the new rose garden was 'satisfied' though the level of the 'satisfied' varies according to their ages. Twenties and thirties prefer that image of fantastic European style which was frequently showed on T.V or movies. Forties and fifties like more abudant scenery of roses of an Europenan style garden but unsatisfied with shortage of roses.

고차원 색인 구조를 위한 효율적인 벌크 로딩 알고리즘

복경수,이석희,유재수,조기형 충북대학교 컴퓨터 정보통신 연구소 2000 컴퓨터정보통신연구 Vol.8 No.1

고차원 색인 구조를 위한 기존의 벌크 로딩 알고리즘은 색인 구성 시간과 검색 성능 모두를 향상시키지 못하는 문제점을 갖는다. 이 논문은 이와 같은 문제점을 해결한 대량의 고차원 데이터에 대한 색인 구조를 위한 새로운 벌크 로딩 알고리즘을 제안한다. 제안하는 알고리즘은 색인을 구성하는 시간을 단축시키기 위해 전체 데이터 집합을 정렬하는 것이 아니라 데이터의 특성을 파악하여 피벗값에 따라 분할하는 기법을 이용한다. 또한 검색 성능을 향상 시키기 위해 데이터들의 분포 특성에 따라 분할 위치를 선택한다. 제안하는 알고리즘에 대한 우수성을 입증하기 위해 실험을 통해 기존에 제안된 알고리즘과 색인 구성 시간 및 검색 성능을 비교한다. Existing bulk loading algorithms for high-dimensional index structures suffer from improving both index construction time and retrieval performance. In this paper, we propose an efficient bulk loading algorithm to construct high dimensional index structures for large data set that overcomes the problem. Although several bulk loading algorithms have been proposed for this purpose, none of them improve both construction time and search performance. To improve the construction time, we don't sort whole data set and use bisection algorithm that divides the whole data set or a subset into two partitions according to the specific pivot value. Also, we improve the search performance by selecting split positions according to the distribution properties of the data set. In order to show superiority of the proposed algorithm, we compare it with existing algorithms in terms of search time and construction time through experiments.

市民農園의 利用動機와 滿足度에 관한 조사

盧庚兒,李震熙,金裕逸 성균관대학교 생명과학자원연구소 1994 生命資源科學硏究 Vol.1 No.1

This study was carried out to provide behavioral data for its planning and management of civic garden through the Evaluation of user's motivation & satisfaction. The civic gardens around Seoul were surveyed. The sites are located in Kwangtan-myeon, Sudong-myeon, Wonsam-myeon, Nam-myeon, Buknae-myeon, and Jumdong-myeon. In-depth interviews were conducted to user at the civic garden sites on weekends. Generally speaking the respondents were free to stop and discuss questions with the interviewer. The findings of this study are as follows : First, The user's motivations are categorized by five groups such as : 'intellectual components', 'social/economic components', 'psychological components', 'physical/recreational components', and 'additional components' Second, they are satisfied with 'nature education for their children', 'sense of achievement', 'opportunity to study nature', 'clean food', and `chances of family contact'. They are dissatisfied with 'lack of facilities', 'traffic congestion', and 'guidance for farming'.

치료용 방사선의 입사각에 따른 광섬유 방사선량계의 체렌코프 빛 측정 및 분석

장경원,조동현,유욱재,신상훈,서정기,이봉수,박병기,문주현 제주대학교 방사선응용과학연구소 2008 방사선응용과학연구소논문집 Vol.22 No.-

In this study, we have measured scintillating light generated in a fiber-optic dosimeter by high energy photon and electron beams using a charge-coupled device. The intensity of Cerenkov lights are also measured and characterized as functions of incident angles and energies of the high energy beams from a clinical linear accelerator. To minimize or remove Cerenkov light, a simple subtraction method using a background optical fiber and wavelength discrimination method using optical filters are investigated. Also, the intensities of Cerenkov light induced by high energy photon and electron beams are compared.