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동시작업기를 이용한 밀 재배시 노력절감 및 농업적 형질의 차이
김학신 ( Hag Sin Kim ),김경훈 ( Kyeong Hoon Kim ),강천식 ( Chon Sik Kang ),신상현 ( Sang Hyun Shin ),정영근 ( Young Kun Jeong ),이춘기 ( Choon Ki Lee ),김경호 ( Kyung Ho Kim ),박광근 ( Kwang Geun Park ),박기훈 ( Ki Hun Park ) 전북대학교 농업과학기술연구소 2014 농업생명과학연구 Vol.45 No.1
밀 재배의 생력화와 생산비 절감을 위한 밀 파종방법을 산파 후 배수골 형성과 동시에 복토하는 광산파와 파종단계의 파종, 시비, 배토, 배수골 형성을 일괄작업이 가능한 동시작업기를 활용한 줄뿌림파종에 따른 밀의 생육 및 수량성을 검토한 시험 결과를 요약하면 다음과 같다. 1. 밀 파종단계의 작업시간은 개별 작업인 기계 산파는 17.0시간 ㏊-1이 소요되나 동시작업기 이용 줄뿌림은 8.7시간으로 49%의 노력이 절감되었다. 2. 밀 입모율은 파종방법이나 파종량 간에 차이가 없었으며, 2010년 입모율이 71~72%로 낮았던 것은 파종에서 출현까지 토양수분이 부족하였기 때문이었으며, 농업적 형질은 기계 산파보다 동시파종기 줄뿌림에서 다소 좋았으나 간장은 오히려 작은 경향을 보였다. 3. 파종방법간 간장은 산파는 68.8cm로 줄뿌림보다 9.3cm가 컸으며, 수장, 수당 입수는 줄뿌림이 많았고 파종량 간에는 산파는 180kg ha-1에서, 줄뿌림은 2000kg ha-1에서 길거나 많았다. m2당 수수와 천립중은 파종방법간에 차이가 없었으며 200kg ha-1 파종에서 많은 경향을 보였다. 4. 수량성은 파종방법간에는 산파(3.79톤 ha-1)보다는 줄뿌림(3.94톤 ha-1)이 4%가 증수되었고, 파종량간에는 기계 산파는 ha당 150kg 파종에 비하여 기계 산파 180kg는 12%, 동시작업기 줄뿌림 180kg는 5%, 동시작업기 줄뿌림 200kg 에서 22%가 증수되었다. 5. 이상의 결과를 요약하면 생산비 절감을 위한 일괄작업기를 이용 밀 재배시 적정 파종량은 ha당 180~200kg 수준이며, 최소 작업면적은 1.0ha 이상으로 판단되었다. This study was performed to evaluate the effects of seeding method using ridger to growth and grain yield increasement in wheat. This study was conducted by the National institute of crop science, Iksan, Korea for two years (2010 to 2011). Two types of seeding methods, Broadcast seeding(BS) and drill seeding(DS), were used to compare in three different seeding rates. Culm length of DS methods was shorter than BS methods. Agricultural characteristics were improved by DS methods. The average of grain yield by DS and BS methods were 3.79ton/㏊ and 3.94ton/㏊, respectively. According to two different seeding rate, 180kg/ha and 200 kg/ha, the grain yields were 3.98 tons in the DS methods. This means that yield were increased 5% and 22% compared with BS methods, respectively. Using of the ridge, labor time was reduced about 8.3 hours in DS methods. Consequently, using ridger have high efficiency under the optimum condition that was 180- 200kg seeding rates at least of 1.0 ha.
30대 젊은 여성에서 발생한 자궁내막암 6예의 임상 병리학적 고찰
신수경 ( Sin Su Gyeong ),이풍구 ( Lee Pung Gu ),신정규 ( Sin Jeong Gyu ),최원준 ( Choe Won Jun ),이순애 ( Lee Sun Ae ),이종학 ( Lee Jong Hag ),백원영 ( Baeg Won Yeong ) 대한산부인과학회 2003 Obstetrics & Gynecology Science Vol.46 No.10
목적 : 본 연구는 40세 이하의 젊은 여성에서 발생한 자궁내막암의 임상적인 특성, 조직 병리학적 소견, 치료 및 예후 등을 알아보기 위하여 본원에서 진단받은 젊은 자궁내막암 환자를 대상으로 임상적 고찰을 시행하였다. 연구 방법 : 1999년 1월부터 2002년 12월까지 경상대학교병원 산부인과에서 진단 및 치료를 받은 총 45예의 자궁내막암 환자 중 30대 젊은 여성 6예를 대상으로 하였으며 환자의 임상 병리학적 특성과 치료 및 예후를 알아보기 위하여 Objective : This study was performed to evaluate the clinical characteristics, histopathology and prognosis of endometrial cancer under 40 years of age. Methods : This retrospective study was based on medical records including pathologic reports of 6 wome
경기장 부대서비스시설 만족이 이벤트이미지와 재관람에 미치는 영향
김학신(Kim Hag Sin) 한국사회체육학회 2003 한국사회체육학회지 Vol.19 No.1
This study was intended to investigate the effect of spectator`s event image and intention to revisit in an attempt to establish the plan for effective operational management of the professional baseball field. As a result, the following conclusion was drawn: First it was found that as for the service facility incidental to the stadium male spectators showed a higher level of satisfaction with factors such as F&B facilities and the bathroom than female counterparts. Seen in terms of age, the group of spectator belonging to the 10s and more than the 40s of age showed the higher level of satisfaction than the other age groups. Seen in terms of occupation, spectators employed in self-employed business, business/specialized technical job, and professional/freelance showed a relatively higher level of satisfaction compared to the other occupational groups. And seen in terms of monthly average income, the club-run concessions and F&B concessions showed the relatively higher level of satisfaction compared to the other income brackets. Especially, it was found that satisfaction with the service facility incidental to the stadium had the significant influence on the event image included the club-run concession, F&B facility, seating, bathroom, parking lots and the like. And it was found that F&B facilities, seating, bathroom and club-run concessions had a significant effect on spectators` intention to revisit the event.
레저스포츠 제품에 대한 가치지각이 재구매의도와 충성도에 미치는 영향
김학신(Kim Hag Sin),박용범(Park Yong Beom) 한국사회체육학회 2003 한국사회체육학회지 Vol.20 No.1
This study was intended to identify the effect of perceived value on repurchase and loyalty for consumers experienced in purchasing and using skiing articles, golfing articles, fitness articles and the like. As a result, the following findings were obtained: First, it was found that consumers with the high level of perceived value showed the very significant correlation between the perceived value on the product and its repurchase. Second, it was found that consumers with the high level of perceived value showed the very significant correlation between the perceived value on the product and its loyalty. Second, it was found that consumers`s higher level of perceived value had a significant effect on the intention of repurchase. Fourth, it was found that consumers`s higher level of perceived value on the product had a significant effect on loyalty. It can be seen that consumers` perceived value on the sporting products reflected the corporate image, recognition, reliability and the like in all-inclusive sense. For this reason, the firm which will engage in marketing in the target market needs to continue an reliable access to it with socially good consciousness as well as the approach to enhance the value of the product.
Effects of plant growth regulator combination on embryo formation for haploid production in wheat
Young-jin Kim,Kyeong-hoon Kim,Hag-sin Kim,Jong-nae Hyun,Jae-hwan Roh,Kee-jong Kim,Kwang-geun Park,Ki-hun Park 한국육종학회 2013 한국육종학회 심포지엄 Vol.2013 No.07
Doubled haploid system is a very effective tool which has been widely applied in wheat breeding programmes. Wide-hybridization, wheat X maize cross, is used for the production of wheat doubled haploids (DH). The introduction of doubled haploid (DH) approach into breeding programs has reduced the times and population sizes required for the production of pure lines. We carried out the experiment for development on effective method of producing haploid in wheat. Emasculated spikelets of wheat were pollinated with maize pollen and cultured in the solution containing 40 g/ℓ sucrose and 2,4-D, ABA and GA3 24 h after pollination, and then incubated until embryo rescue. twelve to fourteen days after pollination, the embryos are excised and cultured in half-strength MS basal medium supplemented with 20 g/ℓ sucrose and 1 ㎎/ℓ NAA. The type of plant growth regulators was found to be most significant in production of haploid plants. The application of synthetic auxins to pollinated florets, stimulates haploid embryo development to a stage where the embryos can be rescued onto nutrient media. The percentage of embryos formed was significantly affected by 100 ㎎/ℓ 2,4-D plus 50 ㎎/ℓ BAP and 100 ㎎/ℓ 2,4-D plus 50 ㎎/ℓ GA3. There was varied efficiency in embryo formation from 5.7 to 53%.
Evaluation of wheat type I and II resistance to Fusarium head blight in the greenhouse and field
Sanghyun Shin,Kyeong-Hoon Kim,Hag-Sin Kim,In-Duck Choi,Jong-Chul Park,Jong-Nae Hyun,Kee-Jong Kim,Chul Soo Park,Chon-Sik Kang 한국육종학회 2012 한국육종학회 심포지엄 Vol.2012 No.07
Fusarium head blight (FHB), caused by Fusarium graminearum is a major disease problem on wheat and barley in Korea and around the world. We screened for Type II resistance in the greenhouse using single floret inoculation and for Type I resistance in the field using spray inoculation. Sumai 3 was used the FHB resistant check. Three hundred and seventy lines were evaluated for resistance to spread of symptoms within spike (type II). The 2012 field screening with 300 wheat lines was located in Kimjae-si Joeonbuk Korea. All plots were inoculated twice. The first inoculation was applied at anthesis for wheat. The second inoculation was applied three days after the initial inoculation (dai) for each plot. The inoculum was F. graminearum (GZ3639) prepared at a concentration of 100,000 macroconidai/ml with Tween 20 added as a wetting agent. Mist-irrigation was applied from the first inoculation on May 7 till June 7 to facilitate FHB development. FHB severity was assessed visually 21 days after inoculation on 20 arbitrarily selected spikes per plot. FHB severity was determined as the percentage of symptomatic spikelets from the total of all spikelets observed in these 20 spikes. Based on the field test, we could observe four categories of FHB severity: resistant (R: 0-20%), moderately resistant (MR: 21-40%), moderately susceptible (MS: 41-60%), and susceptible (S: 61-100%). The results showed that forty four lines showed the resistant category on FHB severity between 2.7% and 19.8%. In addition, ten lines showed similar FHB severity compared to Sumai 3 (9.9%).