딸기 ‘설향’ 육묘 시 모주의 묘소질과 정식 시기가 런너와 자묘의 생육에 미치는 영향

김대영, 김수, 최학순, 이선이, 허윤찬, 정승룡 忠北大學校 農業科學硏究所 2014 農業科學硏究 Vol.30 No.2

This study was conducted to investigate the effect of plantlet quality and transplanting time of mother plants on the growth of runner and daughter plants of strawberry (Fragaria×ananassa) ‘Seolhyang’ during nursery. Plantlet quality of mother plants is expected to be able to distinguish on the basis of crown diameter because crown diameter was highly correlated with fresh weight(r = 0.85), leaf area(r = 0.81), root weight(r = 0.75) and 1st primary roots(r = 0.73). Mother plants were transplanted based on the crown diameter (7~9 mm, 9~11 mm, 11~13 mm and 13~15 mm) in 15 March, 2012. Also, mother plants were transplanted in 15 March, 30 March, 15 April, 30 April and 15 May to investigate the best transplanting date. As a result, the number of daughter plants in the treatment 9~11 mm and 11~13 mm were 22.7 and 22.4 respectively at the end of July. But the number of daughter plants in the treatment of 7~9 mm and 13~15 mm reduced 26% and 16% respectively compared to the average number of the daughter plants in the treatment between 9 mm and 13 mm. The number of daughter plants in the treatment of 15 March, 15 April and 15 May were 20.2, 18.8 and 13.2 respectively at the end of July. Early time of transplanting was able to obtain the more daughter plants and improve the plantlet quality of daughter plants. Therefore, mother plants having crown diameter between 9 mm and 13 mm recommended to be transplanted until the end of March to obtain sufficient daughter plants and improve plantlet quality of daughter plants for producing strawberry fruits.

질의응답 시스템에서 Case-frame을 이용한 정답 추출

이대연,서영훈 충북대학교 컴퓨터정보통신 연구소 2003 컴퓨터정보통신연구 Vol.11 No.2

본 논문에서는 질의문 내에 포함된 동사를 중심으로 문장에 대한 Case-Frame을 구성하고 그를 이용하여 문장내의 정답을 추출하는 방법에 대하여 기술한다. 질의 응답시스템 전체에 대하여 동사는 중요한 단서로 활용되며, 동사에 대한 활용은 구축된 동사 구문 사전 내에 구성된 Case-Frame구조를 이용한다. 동사구문사전은 동사의 일반적인 구문형태와, 각 성분들의 의미 속성, 유의동사 등의 정보를 담고 있다. 동사 구문사전의 효과를 높이기 위해 약 3만 어휘의 명사 의미 사전을 사용한다. 명사 의미사전은 동사 구문사전 내에 사용된 의미 분류로 나누어져 있다. 또한 문장에 대한 구문분석은 동사에 종속적인 품사의 의미 속성과, 문법 형태소의 격 정보를 이용하였다. 본 논문에서 일반적인 질의응답 시스템의 3단계에 맞추어 Case-Frame올 활용한 구문분석의 수행 단계를 보이고, 마지막에 각 기법의 정확도를 보였다. This paper describes a question-answering system using case-frame. Case-frame is the structure of a sentence containing a verb. So, the structure of case frame is determined by the verb. Each case frame includes typical sentence form, semantic categories of each sentence component, and synonym verbs. Noun dictionary including about 30,000 entries contains definitions of that noun, semantic categories, and synonyms for each noun. Our system analyzes input question, decides the case of each component, allocates case-decided components in case frame, and searches a component for empty slot in answer candidate phrases extracted from documents. Searched components are the candidates of answer, and they are ordered according to accumulated weights calculated in each stage.

댐의 龜裂發生 構造와 應力轉移에 關한 硏究

이영섭,임희대 忠南大學校 産業技術硏究所 1999 산업기술연구논문집 Vol.14 No.1

Generally the cracking in dams is one of the major problems which dam engineers encounter. Concenteated leaks which can result in internal erosion and piping phenomenon have frequently developed through embandment cracks located directly adjacent to rock abutments at the points of abrupt change in slope, and particularly adjacent to horizontal steps used for haul roads,grouting platforms, and so on . Many studies,such as observation, 1ab test and numerical snalysis have been conducted to reveal the mechanism of internal and expernal cracking. It is considered that unfavourable deformation and stress state are the direct cause of the cracking. Longitudinal and trasverse cracks on the crest is occurred by differential settlements in the core zone and differential deformation between adjacent zones and closely concerned with the fluctuation of water level. While during of after dam construction, the core zone with low stiffness can be in the state of low stress due to load transfer resulted from relative deformation against shell zones or adutments. In order to study cracking and leakage, Juam main dam is adopted to analyze deformation and stress condition. The results of numerical analysis and installation indicate that the tension zone of the right abutments is comparatively manifest and the stress-transfer of the upper part the core is more remarkable than lower part.

딸기 비가림 포트 육묘 시 자묘의 유인 위치가 생육에 미치는 영향

김대영,김승유,이희수,이선이 忠北大學校 農業科學硏究所 2015 農業科學硏究 Vol.31 No.2

This research was conducted to examine the effects on the growth in response to position of daughter plant of strawberry (Fragaria×ananassa)‘Seolhyang’ during the pot nursery in rain shelter. Mixture of soil mother material medium and rice hull(1:1, volume/volume) and commercial medium were used for nursery medium. Uniform daughter plants of about 2.5 expanded leaves were placed on the center and the side of pot and were investigated the growth characteristics of daughter plants after 60 days. As a result, daughter plants on the side of pot showed a tendency to increase total fresh weight, number of primary root, root weight, and crown diameter which is important characteristics of plantlet quality. Number of primary root, root weight, and crown diameter of daughter plants on the side of pot compared to those on the center of pot were increased to 3% and 11%, 7% and 41%, and 5%, respectively. As a result of analysis of root zone using the root analysis system, the total root length, root surface area and root volume of daughter plants on the side of pot compared to those on the center of pot were increased significantly. Those differences were greater in the commercial medium compared to the mixture of soil mother material medium and rice hull(1:1, volume/volume). Thus, it is expected to be improved the plantlet quality of daughter plants and increase the production ratio of high-quality plantlet when daughter plants were placed on the side of pot during the pot nursery in rain shelter.

다짐함수비 變化에 따른 필댐의 擧動分析

임희대,김태곤,이영섭,고근식 충남대학교 산업기술연구소 1999 산업기술연구논문집 Vol.14 No.2

Compaction water content is a key variable which controls fundamental properties of compacted clay (permeability, deformation and strength). There are three conditions in compaction water content (i.e. dry of optimum, optimum and wet of optimum). Actually, soil mass by compaction is unsaturated condition before seepage therefore, soil suction is the key which is able to explain properties of compacted clay. This paper used results from compacted Pittsburg sandy clay tested under UU test condition from Duncan and Seed in order to determine hyperbolic parameters and simulated behavior of Soyanggang dam as a example. As the results of analysis, dry of optimum presents higher strength and smaller displacement. Wet of optimum is sensitive to water content. Both dry and wet of optimum, any hydraulic fracturing potential does not appear. But dry of optimum is close to hydraulic fracturing.

청경채의 엽 형질에 대한 유전분석 : Brassica campestris L. ssp. chinensis Jusl

김영호,이병군,강대성 한경대학교 2005 論文集 Vol.37 No.-

In order to obtain the genetic information on some leaf characters in pak-choi(Brassica campestris L. ssp. chinensis Jusl), diallel cross was conducted using 9 cultivars, and F1, F2 and BC1F1 hybrid lines were developed. Qualitative and quantitative genetic characters related to the three cropping patterns, spring at field, spring in polyethylene film house, and fall at field, were investigated. The results are as follows: 1. A major element related to the expression of leaf green color, and the complementary gene affecting the leaf color at the stage of pigment development were supposed to exist. 2. Heredity of leaf shape was controlled by one major gene that partially dominant, and the oval type was expressed as a dominant at crossing of oval(CR-Cheongdo) with round(Bangjucheong), oval(CR-Cheongdo) with round(Choseonghwakyeong). 3. Inheritance of plant types, erect, semi-erect, and spread, was affected by single gene and the expression of dominant effects increased in order of erect>semi-erect>spread. 4. Heterosis of leaf length, leaf width, midrib length, midrib width and midrib thickness was highly expressed in all cropping patterns. Some characters such as leaf length, number of leaves, midrib length, midrib width, midrib thickness and fresh weight per plant showed significantly positive heterosis at the spring field cropping. The same effect was observed in leaf length, leaf width, midrib length and midrib thickness at the spring in polyethylene film house cropping, and in leaf length, leaf width, leaf shape index, midrib length, midrib width, midrib thickness and fresh weigth per plant at the field cropping in fall. 5. Estimated as a mean heterosis and a heterobeltiosis effects(%), an increase in fresh weigth per plant was attributed to the increase of midrib thickness, midrib width, midrib length, leaf length and leaf width characters. These effects were more significant at the field cropping in fall than spring cropping. Also, hybrid lines showed more late bolting character compared to their parents.

Wetting에 의한 필댐 상류측 shell의 거동특성

임희대,백장열,이영섭 충남대학교 산업기술연구소 1999 산업기술연구논문집 Vol.14 No.2

The primary objective of this paper is to see the behavior characteristics of rockfill dam due to wetting. There are many factors which affect the dam failure. One of them is the influence of reservoir filling. Differential movements in dam and foundation develop during reservoir filling, they induced cracking and consequent erosion, and sometimes caused dam failure. One of the major factors contributing to the development of differential movements during reservoir filling is the compression due to wetting which occurs in a wide variety of different types of soils including rockfill. To perform the numerical analysis of dam behavior adequately, the large-scaled triaxial test is needed to consider the effect of wetting on dry and wet rockfill material. But, As the large-scaled triaxial test is high capital cost and not available apparatus for a number of other experiment, it is not applied many case in the country. In this paper, the data of Oroville dam which performed the large-scaled triaxial test is referenced to find out stress-strain curve and hyperbolic parameters on wetting for modeled dam which is not performed the large-scaled triaxial test. So, effect of wetting on modeled dam can be considered for numerical analysis of dam behavior. As a result of numerical analysis, they estimate that horizontal and vertical displacement are increased with the rate of increasing wetting, and shear stress too. Because compression and shear strength is decreased with proceeding wetting. And results of analysis show that load transfer is not affect significantly by the wetting.

재원기간중 사망한 급성 심근경색증 환자의 임상적 특징

현대우,김기식,신이철,박소영,배장호,한창엽,김윤년,김권배 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.9

정신분열병 및 정신분열형 장애에 대한 올란자핀의 효과와 안전성

안용민,강대엽,권준수,김창윤,김철응,반건호,신영민,이기철,이동우,이중서,조현상,채정호,김용식 大韓神經精神醫學會 2001 신경정신의학 Vol.40 No.4

연구목적 : 본 다기관 공동임상연구는 국내 환자를 대상으로 새로운 항정신병약물인 올라자핀의 치료 효과와 안전성을 확인하고자 시행되었다. 방 법 : 1999년 7월부터 2000년 3월까지 국내 10개 병원에 방문한 정신분열병 및 정신분열형 장애 105명을 대상으로 비대조 개방 임상연구를 시행하였다. 중등도 이상의 정신병 증상을 지니거나, 부작용으로 약물교체가 필요한 경우 또는 기분장애 증상의 치료가 필요한 환자를 대상으로 하였다. 2∼7일간의 약물 배설기간 후에 1일 10mg의 올란자핀을 투여하였고, 이후로 3∼7일 간격으로 용량을 조절하여 총 8주간 투여하였다. 치료 효과는 PANSS(Positive and Negative Syndrome Scale), BPRS(Brief Psychiatric Rating Scale), CGI(Clinical Global Impression-Severity), MADRS(Montgomery-Asberg Depression Rating Scale), HAM-A(Hamilton Rating Scale for Anxiety)로 판정하였다. 안전성 평가는 자발적인 이상반응 보고, 활력징후와 혈액 검사 및 SAS(Simpson-Angus Scale), BARS(Barnes Akathisia Rating Scale), AIMS(Abnormal Involuntary Movement Scale)척도를 이용하였다. 결 과 : 105명중에서 85.7%인 90명이 8주간의 치료를 완료하였다. 평균 최빈 용량은 일일 16.1(±4.7)mg이었고, 종료시점에서의 BPRS전체 점수가 기저 상태에 비해 40%이상 감소된 반응군은 69.5%이었다. PANSS의 양성 증후군과 일반정신병리 뿐만 아니라 음성 증후군 소척도에서도 유의한 감소를 보였으며, 이 감소들은 치료 초기부터 나타나서 8주간 지속되었다. 43.8%의 피험자가 중등도 이상의 우울증상을 같이 지니고 있었으며, 올란자핀에 의해 MADRS와 HAM-A가 유의하게 감소하였다. 치료 기간 동안에 활력징후에는 뚜렷한 변화가 없었으나 체중은 8주간 지속적으로 증가하였다. SAS와 AIMS는 감소하였으며, 정좌불능증을 제외한 나머지 추체외로 증상의 발생비율도 낮았다. 임상적인 증상이나 징후를 동반하지 않는 ALT/SGPT의 상승을 보였지만 프로락틴을 포함하는 대부분의 혈액 검사상 뚜렷한 이상 변화는 없었다. 결 론 ; 비록 본 임상연구가 비대조 개방 임상연구로서 많은 제한점을 가지고 있지만, 올란자핀이 기존 약물에 내약성을 보이거나 기분증상을 동반하는 정신병에 치료 효과가 있었다. 그리고 기존 항정신병약물 치료시에 문제가 되었던 추체외로 증상과 고프르로락틴 혈증을 포함하는 대부분의 부작용면에서 안전성을 보여 주었다. Objective : This multicenter clinical trial was carried out to investigate the efficacy and the safety of olanzpine for the treatment of Korean patients. Mothod : 105 patients with schizophrenia and schizophreniform disorder, visited at 10 mental or university hospitals, had received an open and non-comparative treatment with olanzapine for 8 weeks. Patients had psychotic or depressive symptoms with the severity above moderate degree or intolerable side effects to previous antipsychotics. After a wash-out period of 2-7 days, 10mg olanzapine was prescribed initially to all the patients, and then the dosage could be adjusted within the range of 5-20mg/day of olanzapine by 3-7 days. Results : 90(85.7%) of 105 patients completed the 8-weeks trial and the mean modal dose of olanzapine was 16.1(±4.7%)mg/day. At the end of the trial, 73 patients(69.5%) were classified as responder, which was defined as 40% or more improvement in BPRS(Brief Psychiatric Rating Scale) score comparing to baseline. There was a significant reduction in the scores of PANSS(Positive and Negative Syndrome Scale)and subscales including negative symptom scores and CGI. Also weekly analysis showed that the reductions in scores were kept on for the whole period of the trial. 43.8% of all the patients had depressive symptoms at the baseline and total scores of MADRS(Montgomery-Asberg Depression Rating Scale) and HAM-A(Hamilton Rating Scale for Anxiety) were also reduced after the trials. Vital signs revealed no clinically significant changes but continuous weight gain was observed during the treatment with olanzapine. The scores of SAS(Simpson-Angus Scale) and AIMS(Abnormal Involuntary Movement Scale) for assessing the EPS(extrapyramidal symptoms)and tardive dyskinesia respectively were significantly decreased and only a few patients reported EPS as adverse events. Although mild and clinically non-significant of ALT/SGPT was observed, most laboratory parameters including plasma prolactin level showed to significant changes during the trial. Conclusions : Although this trial had many limitations because it was a non-comparative and open study, olanzapine showed high efficacy on the positive, negative and depressive symptoms in schizophrenia and schizophreniform disorder.In addition to that, olanzapine showed a substantially favorable safety profile, such as low incidence of EPS and hyperprolactinemia.

강재 슬릿형 댐퍼를 부착한 철근콘크리트조 골조의 거동

신종익,이정한,송한범,강대언,오상훈,차승렬,이용재,김상대,이원호 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1(구조계)

This study investigates the performance of the reinforced concrete frame with the steel plate slit damper. The test was carried out to investigate the structural behavior between the reinforced concrete bare frame and the reinforced concrete frame with the steel plate slit damper. The test results showed that the energy absorption capacity of the damped-frame was several times larger than that of the bare frame. For the damage by the input energy is concentrated on the steel plate slit damper, the ductilities of the former structure were increased and the damaged frame can be reused after exchange the steel plate slit damper.