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- 저자 : 강신원(Sin-Won Kang) (검색결과 4 건)
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추작 마령서의 파종기, 파종법 및 최아법이 발아 생육에 미치는 영향
강신원,Sin-Won Kang 한국작물학회 1970 Korean journal of crop science Vol.- No.8
1. 추작 마영서 단종 적순는 7月21견경으로 보였다. 2. 배수가 양호한 곳에서는 직파해도 발아에 지장이 없었다. 3. 양지(야외)최아가 음령소 최아보다 싹이 훨신 건실했다. In order to find out the suitable periods and methods of seeding and the suitable seed bed location of fall grown potatoes in Seoul, this experiment was conducted at College of Agriculture, Korea University from 2nd July to 30th September in 1970. Experimental results using Irish cobbler, our leading variety, were as follows; 1. The suitable seeding period of fall grown potatoes seems about 21st July. 2. The direct seeding method is available where the upland farm is well drainage. 3. The sprouting in the field conditions forcing makes healthy stands of seed potatoes.
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강신원(Sin-Won Kang),장종훈(Jong-Hoon Jang),정지예(Ji-ye Jeong),원충연(Chung-Yuen Won) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.4
Hybrid electric vehicle has three operating mode, depending on the operation of the engine and electric motor. According to the speed range of BLOC motor, In hybrid traction mode, both the engine and electric motor deliver to drive train. Battery charge mode, the electric motor operates as generator and is driven by the engine to charge the batteries. In engine alone traction mode, the electric motor is de-energized, and vehicle is propelled by the engine alone. we propose hysteresis current control technique to maintain constant speed in the motor load torque at the reverse direction. The proposed method is verified by using Matlab Simulink software.
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명암 대비와 에지 선예도를 이용하는 영역 성장법에 의한 디지털 X선 맘모그램 영상에서의 미세 석회화 검출
원철호 ( Won Cheol Ho ),강신원 ( Kang Sin Won ),조진호 ( Jo Jin Ho ) 한국센서학회 2004 센서학회지 Vol.13 No.1
N/A In this paper, we proposed the detection algorithm of microcalcification based on region growing method with contrast and edge sharpness in digital X-ray mammographic images. We extracted the local maximum pixel and watershed regions by using watershed algorithm. Then, we used the mean slope between local maximum and neighborhood pixels to extract microcalcification candidate pixels among local maximum pixels. During increasing threshold value to grow microcalcification region, at the maximum threshold value of the contrast and edge sharpness, the microcalcification area is decided. The regions of which area of grown candidate microcalfication region is larger than that of watershed region are excluded from microcalcifications. We showed the diagnosis algorithm can be used to aid diagnostic-radiologist in the early detection breast cancer.
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Ki Chang Hong(洪基昶),Sin Won Kang(姜信元) 한국육종학회 1970 한국육종학회지 Vol.2 No.1
大豆 放射線 育種의 한가지 基礎硏究로서 Gamma ray에 對한 感受性의 品種間 差에 對하여 試驗한 바 그 結果를 要約하면 다음과 같다. (1) Gamma ray 照射에 따라서 高線量에서는 發芽率이 大體로 抑制傾向을 보인 것이 많았다. Hill 만을 全線量(15~60kR)에서 發芽率이 增大되었다. (2) 全品種이 Gamma ray 照射에 依해 發芽期間이 延長되었으나 忠北白과 益山만은 低線量에서는 도리어 短縮되는 傾向을 表示하고 있다. (3) 上胚軸長은 全體的으로 減少 傾向을 보였으나 忠北白과 益山은 低線量에서는 도리어 增大傾向을 보였다. (4) 下胚軸長도 全體的으로 減少 傾向을 보였으나 Hill만은 全線量에서, 益山을 除한 全品種이 15kR에서 增大傾向을 보였다. (5) 葉面指數는 全品種이 全線量에 增大되었다. (6) 莖長은 益山과 Hill에서는 15~35kR 에서 增大되고 45kR 以上에서 減少되었으며 基他 品種은 全線量에서 減少되었다. (7) 葉長은 거의 全照射區에서 減少되었으나 金豆益山 및 Hill의 15 kR 增大되는 傾向이 있었다. (8) Gamma ray 照射에 依하여 12種類 以上의 畸型葉이 相當한 頻度로 出現하였다. (9) 初期부터 여러個의 側枝가 一齊히 發育하여 正常個體보다 生育이 極히 旺盛한 異常 個體도 發見되었다. In order to find out the varietal differences of radiation sensitivity in five soybean varieties, Chung-buk-baek, Yuk-u #3, Keum-du, lk-san, Chang-dan-baek-mok and Hill were treated with 15, 25, 35, 45, and 60 kR of gamma ray. The results gained are summarized as follows; (1) The germination percentage decreased with an increase of gamma ray dosage except the slight stimulation at lower doses in most of the varieties. But Hill was stimulated from all doses. (2) The length of time for germination was prolonged by the gamma ray irradiation in four varieties, while Chung-buk-back and Ik-san were shortened in low dose. (3) The length of epicotyl was reduced in four varieties, the other varieties, Chungbuk-baek and Ik-san were increased in lower doses. (4) The length of hypocotyl was reduced with increasing dosage in five varieties except Hill, which was increased with all doses, while all varieties, except Ik-san were increased at 15 kR. (5) The leaf index was increased proportionally to high dosage. (6) The length of stem was increased between 15 kR and 35 kR in Ik-san and Hill, but reduced in all doses in the other four varieties. (7) in general, the length of leaf was decreased from all doses, but it was increased at the 15 kR level in Keum-do, Ik-san and Hill. (8) More than twelve kinds of abnormal leaf types resulted from various dose levels. (9) More vigorous plants of a bushy type were found in the experiment.
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