Mokpo-MS를 利用한 F_1用種子 採種方法과 採種能力

權炳善,文溶植,李鍾一 조선대학교 농업연구소 1982 農業硏究 Vol.1982 No.1

成分改良된 Mokpo-MS를 利用하여 F_l用種子 採種方法과 採種能力을 究明코자 實驗한바 MS와 花粉親間 의 交互栽植時에 10a 當 F_l採種量은 어느 組合에서나 다 같이 MS 1 畦, 花粉親 1畦 交互畦栽植에서118~127kg의 F_l採種量을 얻었고 MS 2 畦, 花粉親 1 畦 交互畦 栽植에서는 101~ 118Kg, MS 3 畦, 花粉親 1 畦 交互畦 栽植에서는 86~89Kg의 F_l採種量을 얻었다. The F_1 seed production in per l0a has been produced by 118kg to 120kg with the one row planting of pollen parents and one row alternate planting of Mokpo-MS. The other hand, two rows planting of Mokpo-MS and one row alternate planting of pollen parents has been to produced by 101kg to 118kg and three rows planting of Mokpo-MS and one row alter nate planting of pollen parents has been produced by 86 to kg in F-l seed production.

접합면 균열의 인성과 균열선단 주위의 소성역의 변화

權鍾完,崔柄善 慶一大學校 1999 論文集 Vol.16 No.2

Interfacial crack problems between fibers and matrix in composite materials were discussed. From the series of mixed mode crack initiation experiments, it could be seen that there was a large increase in toughness with shear components. In this study to show the increase of toughness due to the increase of shear component in mode-mixity, effects of plastic zone on interfacial crack is considered and represented the function of mode-mixity. Variation of plastic zone is investigated using finite element method on wide-ranged mode-mixity. There was a similarity between the numerical and experimental results. Possible cause of the increase in toughness was discussed by considering the effect of plastic zone near crack tip.

Influence of Sowing Time on Growth, Yield and Nutritional Quality of Forage Rape in Spring

Kwon,Byung-Sun,Shin,Jeong-Sik,Park,Hee-Jin,Shin,Jong-Sup,Choi,Seong-Yu 한국자원식물학회 2003 Plant Resources Vol.6 No.1

To determine as optimal sowing time of forage rape in spring time in southern areas of Korea, forage rape cv. Velox, the highest yielding variety among introduced varieties of forage rape, was grown under five different sowing times. Yield components such as plant length, number of branches and number of leaves etc. were higher at the sowing time of Mar. 15 and Mar. 25. The plants sown at Mar. 15 and Mar. 25 also showed highest fresh and dry matter yield. When plants were grown under later sowing time, they showed higher values in content of crude protein and lower values in contents of crude fiber such as Neutral Detergent Fiber (NDF), Acid Detergent Fiber (ADF), cellulose and lignin. There was no relationship between variation of In Vitro Dry matter Digestibility (IVDMD) and sowing time. The plants sown at Mar. 15 and Mar. 25 showed highest digestible dry matter yields.

부비동 내시경수술 후 비음도 변화

동헌종,김선일,권중근,윤영선,강수미,추광철 대한이비인후과학회 1999 대한이비인후과학회지 두경부외과학 Vol.42 No.7

Relationship between Meteorological Elements and Yield of Hot Pepper in Yeosu Area of Korea

Kwon,Byung-Sun,Choi,Seong-Kyu,Shin,Jeong-Sik,Shin,Jong-Sup,Shin,Dong-Young,Hwan,Kyu-Hyun,Kim,Hak-Jin,Kuk,Yong-In,Choi,Kyong-Ju 한국자원식물학회 2003 Plant Resources Vol.6 No.1

This study was conducted to investigate the relationships between yearly variations of meteorological elements and yearly variations of productivity in hot pepper. In addition, correlation coefficients among the yields and yield components were used to find out the relationships between meteorological elements and productivity. Yearly variation of the mean air temperature in May and July showed large with coefficients of variation(C.V.) of 25.0,8.9%, respectively, but the variation of the duration of sunshine in May were relative small. Yield and plant height was greatly with C.V. of 7.14,11.6%, respectively, diameter of fruit showed more or less C.V. of 2.28% and length of fruit showed less variation. Correlation coefficients between maximum temperature in period of cultivation from May and yield are positively significant at the level of 1 %. Correlation Coefficients between precipitation in period of cultivation from May to August and yield are negative significant at the level of 5 and 1 %, respectively. Correlation coefficients amount the plant height, length of fruit, diameter of fruit per plant, and seed yield were positively significant at the level of 1 %, respectively.

급성 ST 분절 상승 심근경색증의 표준진료지침 설계

권선옥,김우식,오명기,나종천,이홍기,조욱현,최석구 인제대학교 2006 仁濟醫學 Vol.27 No.-

The use of critical pathways for a variety of clinical conditions has grown rapidly in recent years, particularly pathways for patients with acute myocardial infarction. We intend to determine the impact of a clinical pathway on ST-elevation myocardial infarction (STEMI) and to evaluate the efficacy and safety of facilitated percutaneous coronary intervention (PCI) compared with primary PCI. Low risk STEMI patients (ST elevation >0.1mV in more than 2 limb leads or ST elevation >0.2mV in contiguous precordial lead, chest pain lasting more than 30 min without response to nitroglycerin) will be included. All patients will be also treated medically according to critical pathway. STEMI is one of the common diseases in emergency medicine and so it is necessary to establish realistic treatment guidelines. The use of critical pathways will improve the quality of care.

기업의 효과적인 Blended Learning 개발·운영 전략 탐색을 위한 연구

권성연,유선주,강경종 한국직업능력개발원 2005 직업능력개발연구 Vol.8 No.1

Blended Learning은 교육훈련의 성과를 높이고 기업이 직면한 새로운 환경에 보다 효과적으로 대응할 수 있는 교육훈련 전략으로써 많은 기업에서 활용하고 있다. 그러나 대부분의 기업들은 Blended Learning을 보다 성공적으로 정착시키기 위한 효과적인 개발, 운영 전략을 명확히 수립하지 않은 상태로 진행을 하기 때문에 여러 가지 문제점을 경험하고 있는 실정이다. 따라서 본 연구에서는 기업의 Blended Learning 사례를 분석하여 실제적인 Blended Learning의 개발, 운영 과정을 파악하고 그 과정에서 나타난 문제점과 성과를 도출하여 기업에서 효과적으로 Blended Learning을 개발·운영하는 데 지침이 될 수 있는 전략과 방안을 제시하고자 하였다. 이를 위하여 온라인 콘텐츠를 Blended Learning으로 개발하고 운영하는 과정을 관찰과 면담, 설문조사의 방법을 통해 분석하였다. 연구 결과, 온라인 과정에 비해 Blended Learning은 학습 성취와 만족도 측면에서 긍정적인 효과가 있는 것으로 나타났으나 Blended Learning에 포함된 다양한 교수방법에 학습자들의 적극적인 참여를 이끌어 내기 어려운 점이 문제점으로 지적되었다. 마지막으로 본 연구의 결과를 바탕으로 Blended Learning의 효과적 개발과 운영을 위한 전략과 방안을 제시하였다. Blended learning has recently been a well-known approach to workplace learning for maximizing learning outcomes and effectively coping with changing training environments. However, even though its popularity, blended learning has shown its difficulties and problems in practice due to lack of systematic strategies for development and implementation. The purpose of this study is to examine a case of developing and implementing blended learning, to investigate advantages and disadvantages of the studied approach, and to provide corporations with guidelines for effective development and implementation of blended learning. This study was conducted by doing interviews with facilitator and instructor, surveys with students about their learning outcomes and satisfaction, and field observations of the development and implementation processes. The major findings of this study are as follows: participants were satisfied with blended learning approaches in terms of its effectiveness to achieve learning objectives. However, the interviews with instructors indicated that a primary challenge for the implementation is to encourage participants to become more actively involved in various modes of instruction introduced in blended learning Finally, several strategies and guidelines for broadening the applicability of blended learning were provided.

Effect of Meteorological Element on Growth and Yield of Sesame

Kwon,Byung-Sun,Shin,Jeong-Sik,Shin,Jong-Sup,Choi,Seong-Kyu,Seo,Young-Nam 한국자원식물학회 2002 Plant Resources Vol.5 No.3

This study was conducted to investigate the relationships between yearly variations of climatic elements and yearly variations of productivity in sesame. In addition, correlation coefficients among yield and yield components were estimated. The data of yield and yield components were investigated for 10 years from 1992 to 2001. The meteorological data gathered at the Yeosu Weather Station for the same period were used to find out the relationships between climatic elements and productivity. Yearly variation of the amount of precipitation in July and September were large with coefficients of variation(c.v.) of 64.59, 92.47%, respectively, but the variation of the average temperature in June and August were relative small. Yield and plant height greatly with c. v. of 26.24, 23.41 %, respectively, 1, 000 grain weights show more or less c.v. of 3.83% and length capsule setting show still less variation. Correlation coefficients between maximun temperature in period of cultivation(from June to September) and yield are positively significant at the level of 5.1 %, respectively. Correlation coefficients amount the plant height, length capsule setting, number of capsules per plant, weight of 1, 000 grains and seed yield were positively significant at the level of 1 %, respectively. Simple linear regression equations by the least square method are estimated for number of capsules per plant(Y₁) and the maximun temperature in August(X) as Y₁=10.1255+0.1725X, and for yield(Y₂) and the maximun temperature in August(X) as Y₂=21.6151 + 1.3724X.

구례지방의 기상과 고추의 생육 및 수량과의 관계

권병선,천종은 순천대학교 지역개발연구소 1998 地域開發硏究 Vol.9 No.-

This study was conducted to investigate the relationships between yearly variations of climatic factors and yearly variations of productivity in red pepper. In addition, correlation coefficients among the yield and yield components were estimated. The data of yield and yield components were collected from the statistical Year Book of Gurye province, Research Report of Gurye Extension Station of Rural Development Administration, and farmers for ten years from 1987 to 1996. The meteorological data gathered at the Sunchon Weather Station for the same period were used to find out the relationships between climatic factor and productivity. Yearly variation of the precipitation in September with coefficients of variation(C.V.) of 84.71, but the variation of the mean temperature in May and June were relatively small. Yield and fruit diameter were large with coefficients of variation(C.V.) of 15.63, 18.09%, but the variation of fruit length and fruit weight were small with 6.27%, 10.42% respectively. Correlation coefficients between duration of sunshine of Aug. and yield, yield components are negative significant at the level of 5, 1%, respectively. Duration of sunshine of Aug. would be used as a predictive variable for the estimation of yield and flowering data. Simple linear regression equations by the least square method are estimated for flowering data (Y_1) and the duration of sunshine of Aug.(X) as Y_1=-580.5527+21.6301X(R_2=0.4761), and for yield (Y_2) and the duration of sunshine of Aug.(X) as Y=-76.0402+1.0705×(R_2=0.5131)

비규격 초음파 탐상용 표준시험편의 사용안전성 평가

권호영,임종호,강세선 한국비파괴검사학회 2000 한국비파괴검사학회지 Vol.20 No.5

표준시험편이란 재질, 형상, 치수 및 성능이 권위 있는 기관에 위해 검정된 국제적인 시험편을 말하며 이것은 탐상기의 특성시험 또는 감도조정, 시간축의 측정범위 조정에 사용된다. 그런데 이 표준시험편은 초음파탐상 결과에 아주 크게 영향을 미치는 하나의 변수로 ASTM 이나 JIS에서는 이들 표준시험편의 규격, 재질 및 성분 등을 엄격하게 규격화하고 있다. 그 이유는 이들 성질들이 감도와 분해능 및 재현성에 아주 큰 영향을 미치기 때문이다. 따라서 결함의 크기 및 치수를 정량화하고 재현성 있는 결과를 얻기 위해서는 엄격한 품질의 표준시험편이 요구되고 있다. 그러나 ASTM 또는 JIS등의 규격품들은 상당히 고가이며 시중에는 품질이 검증되지 않은 표준시험편들이 일부 사용되고 있는 실정에 있고 이들 시험편의 품질 및 사용 적합성을 재고하기 위하여 각종 규격에 비추어 보고, 규격품들과 비규격품의 각종 성질들을 비교하여 그 사용 안정성을 고찰하고자 하였다. 그 결과 비규격품들은 치수 및 성분에서 많은 문제점을 안고있으며 비규격품들을 검증없이 사용할 경우 피검물내의 결함의 위치나 크기 측정에 오차를 유발할 가능성을 확인하였다. Standard Test Block(STB) for UT(Ultrasonic Testing) is a block approved by authoritative for material, shape and quality. STB is used for characteristic tests, sensitivity calibration and control of the time base range of UT inspection devices. The material, size and chemical components of STB should be strictly controlled to meet the related standards such as ASTM and JIS because it has an effect upon sensitivity, resolution and reproductivity of UT. The STBs which are not approved are sometimes used because the qualified STBs are very expensive. So, the purpose of this study is to survey the characteristics, quality and usability of Non-Standardized Test Blocks. Non-Standardized Test Blacks did not meet the standard requirements in size or chemical components, and ultrasonic characteristics. Therefore if the Non-Standardized Test Blocks are used without being tested, it's likely to cause errors in detecting the location and measuring the size of the defects.