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환경조건에 따른 외래잡초 둥근잎유홍초의 출현과 생육 차이
장세지,이인용,국용인,Jang, Se Ji,Lee, In-Yong,Kuk, Yong In 한국잡초학회 한국잔디학회 2018 Weed & Turfgrass Science Vol.7 No.2
본 연구는 다양한 온도, 파종심도, 차광 및 토양수분함량 조건 하에서 둥근잎유홍초의 발아와 생육에 차이를 구명하여 효과적인 관리방법을 개발하는데 필요한 기초 자료로 사용하고자 수행하였다. 둥근잎유홍초 종자휴면은 1년 이상이었고, 휴면타파를 위해서는 황산에 15분 침지하는 것 가장 좋았다. 둥근잎유홍초 종자의 발아율은 $25-35^{\circ}C$에서 69-73%, $15^{\circ}C$에서 26%를 보였다. 파종 심도별 발아율은 2, 3, 5, 7, 8 cm 파종깊이에서 70-84%이었으나 12 cm와 15 cm 파종깊이에서는 각각 7%와 13%에 불과하였다. 둥근잎유홍초 종자는 무차광과 차광 정도와 상관없이 높은 발아율을 보였으나, 지상부 생체중은 차광 20%>무차광=차광 35%>차광 50%>차광 75%=차광90% 순으로 높았다. 토양수분은 포화상태의 30%와 100%조건에서는 둥근잎유홍초 종자는 발아하지 않았고, 포화상태의 60%와 80%에서 60-83%의 발아율과 최적의 생장을 보였다. This study was carried out to investigate the differences in germination and growth of Quamoclit coccinea Moench under various temperatures, seeding depths, and levels of shading and soil moisture for effective weed management. Seed dormancy of Q. coccinea Moench was over 1 year; best results were obtained when seeds were soaked in sulfuric acid for 15 minutes in order to break the dormancy. Germination rates of Q. coccinea Moench ranged from 69 to 73% at $25-35^{\circ}C$ and 26% at $15^{\circ}C$. The germination rates ranged from 70-84% at 2, 3, 5, 7, and 8 cm of seeding depths. In addition, the germination rates were 7% and 13% at 12 cm and 15 cm of seeding depths, respectively, and showed normal growth at the both seeding depths. Q. coccinea Moench showed a high germination rate regardless of shading levels, but shoot fresh weight varied depending on the level of shading as follows: 20%>no shading=shading 35%>shading 50%>shading 75%=shading 90%. Q. coccinea Moench did not germinate when soil had a saturation rate of either 30% or 100%. However, 60-83% of seeds germinated with optimal growth when soil had saturation rates of 60% and 80%.
박지훈(Ji Hun Park),장세인(Se In Jang) 대한스포츠한의학회 2019 대한스포츠한의학회지 Vol.19 No.1
Objectives Korean medicine clinic was officially opened in the Jincheon National Training Center of KSOC(Korean Sport & Olympic Committee) in 2018. The purpose of this study is to identify the utilization rate of patients who visited Korean medicine clinic in Jincheon athletes village and to provide basic data to contribute for specialization of Korean medicine. Methods We investigated 1092 cases of patients(athletes, coaches, workforces, staff) who had visited Korean medicine clinic in Jincheon athletes village from August 2018 to November 2019. Results 1. Average 19 people visited the clinic in a day(8 first visits, 11 re-visits) 2. Average 2.4 times visited the clinic. 3. The utilization rate is high among Male (64.6%), 20s age (62.6%) and athletes player(86.4%). 4. Among the 37 events visited, there are many visits in order of shooting, wrestling, weightlifting, karate, judo, cycling, and Taekwondo. 5. The most common treatment area was neck (30%), waist (29%), shoulder (11%) and ankle (5%). Conclusions In this study, Korean medicine clinic is useful for athletes in Jincheon athletes village
가금(칠면조, 오리, 호로새, 꿩)의 장내 기생충 감염상황
양홍지 ( Hong Ji Yang ),서창섭 ( Chang Sub Seo ),윤여백 ( Yea Baek Yoon ),박태욱 ( Tae Wook Park ),김성훈 ( Seong Hun Kim ),최은영 ( Eun Young Choi ),안응엽 ( Euing Youb An ),장세군 ( Se Goon Jang ) 한국가축위생학회 1993 韓國家畜衛生學會誌 Vol.16 No.2
In order to monitor the parasites, fecal samples were taken from turkey(n=157), helmeted guineafowl(n=149), pheasant(n=190) and duck(n=190) in Chonbuk province. The identification of the parasites were determined by the fecal examination using the fluatation method and microscopical examination. The results were obtained as follows: 1. The detection rate of the parasites from 4 species of poutry was 47.2%(n=324 heads) out of 686 heads. 2. The identification rate was 85.9% in helmeted guineafowl, 63.2% in pheasant, 44.6% in turkey and 3.2% in duck, in order. 3. The mixed infection rate such as single, double, triple and quadrupl was 25.4%(174 heads), 14.1%(97 heads), 7.3%(50 heads) and 0.4%(3 heads), respectively. 4. The parasites isolated were identified as Capillaria spp. in 225 heads, Eimeria spp in 169 heads, Heterakis gallinarum in 116 heads, Ascaridia galli in 16 heads, Hymenolepis spp. in 3 heads and Strongyloides avium in 1 head, in order.
토양검정법에 의한 전남지역 논잡초 발생양상과 ALS 저해제 제초제 저항성 논잡초 분포
정장용,윤영범,장세지,현규환,신동영,이정란,권오도,국용인,Jeong, Jang Yong,Yun, Young Beom,Jang, Se Ji,Hyun, Kyu Hwn,Shin, Dong Young,Lee, Jeongran,Kwon, Oh Do,Kuk, Yong In 한국잡초학회한국잔디학회 2018 Weed & Turfgrass Science Vol.7 No.3
This study was to investigate the occurrence patterns of paddy weeds, their resistance levels to an ALS inhibiting herbicide, and to estimate the areas of resistance in these paddy fields. We used soil collected from 358 paddy fields of Jeonnam province in 2017. Based on their life cycles, weeds were 96% annuals and 4% perennial. Additionally, according to morphological classification, 59% were broad leaves, 28% were sedges and 13% were grasses. Different areas within Jeonnam province contained different numbers and occurrence rates of weed species. However, generally, we observed Lindernia dubia var. dubia, Monochoria vaginalis var. plantaginea, Ludwigia prostrata, L. procumbens, Cyperus difformis, Scirpus juncoides, Eleocharis Kuroguwai, Echinochloa oryzoides, and E. crus-galli var. echinata. We also observed seven weeds resistant to an ALS inhibiting herbicide. They were M. vaginalis, S. juncoides, C. difformis, L. dubia, Ludwigia prostrata, E. oryzoides, and E. crus-galli var. echinata. Although there were differences in the number and occurrence rate of resistant weed species to an ALS inhibiting herbicide among areas in Jeonnam province, the M. vaginalis, C. difformis, and S. juncoides occurred in 23 cities and counties in Jeonnam including Gwangju metropolitan city. Based on the rates (52%) of resistant occurrence to an ALS inhibiting herbicide in Jeonnam province, the area of weed resistant paddy fields was estimated to be 91,543 ha. 본 연구는 토양검정법을 이용하여 전라남도 지역 논에서 발생되고 있는 잡초발생 양상과 ALS 저해제 제초제 저항성 여부 검증 및 저항성 잡초 발생 논면적을 예측하고자 수행하였다. 2017년 전남지역 358 필지에서 채취한 토양에 발생한 잡초의 경우 생활사별로 분류한 경우 일년생 96.1%와 다년생 3.9% 발생하였고, 형태적으로 분류한 경우 광엽잡초 59.0%, 사초과 28.3%, 화본과 12.7% 순으로 발생하였다. 비록 전남에서도 시 군별 논잡초 발생 초종수와 초종별 발생율에 차이가 있으나 미국외풀, 물달개비, 여뀌바늘, 밭뚝외풀, 알방동사니, 올챙이고랭이, 올방개, 논피, 물피 등이 발생하였다. 또한 전남지역에서는 ALS 저해제 제초제 저항성 논잡초 물달개비, 올챙이고랭이, 알방동사니, 미국외풀, 여뀌바늘, 물피, 논피 7초종이 발생하였다. 비록 전남 시 군별 ALS 저해제 제초제 저항성 잡초 초종수와 발생율은 다르나 이중 물달개비, 알방동사니, 올챙이고랭이는 광주광역시를 비롯한 전남 23개 시 군에서 발생하였다. 전남지역의 ALS 저해제 저항성 발생율(51.5%)에 기초한 저항성 논잡초 발생 논면적는 91,543 ha로 평가되었다. 따라서 이러한 정보를 활용하여 제초제 저항성 논잡초 효율적 관리 방안을 수립할 수 있을 것으로 판단된다.
유수실 상부 덮개가 유공 케이슨 방파제의 전면벽 및 후면벽 파압에 미치는 영향
오상호,지창환,오영민,장세철,Oh, Sang-Ho,Ji, Chang-Hwan,Oh, Young-Min,Jang, Se-Chul 대한토목학회 2013 대한토목학회논문집 Vol.33 No.6
이 연구에서는 수리모형실험을 통해 유수실 상부 덮개가 유공 케이슨 방파제 전면벽 및 후면벽에서의 파압에 미치는 영향을 고찰하였다. 수리모형실험은 유공 케이슨의 유수실 상부 덮개가 있는 경우 및 없는 경우에 대해서 전면벽 유공률을 변화시키면서 이루어졌다. 유수실 상부가 덮개로 막혀 있을 때에는 모든 실험 조건에서 유의미하게 더 큰 파압이 취득되었으며 따라서 유수실 상부 덮개 존재에 따른 두 벽에서의 계측 파압 차이는 매우 뚜렷하게 나타났다. 그 결과 계측 파압을 적분하여 계산된 전파력의 크기 역시 상부 덮개가 있는 케이슨 방파제의 경우가 더 컸으며, 이 경우 잘 알려진 Takahashi의 파압식에 근거한 파력값을 상회하였다. 한편, 전면벽 유공률에 따라서는 방파제 전면벽 및 후면벽에서 모두 유공률이 클수록 더 큰 파압이 계측되었다. In this study, the effect of wave chamber slab on wave pressure along the first and second wall of the perforated caisson breakwater was investigated by performing physical experiment. The experiment was performed without and with the wave chamber slab of the perforated caisson by varying the front wall porosity. The discrepancy in magnitudes of the measured wave pressure along the both walls of the perforated caisson was apparent according to the existence of the wave chamber slab as significantly greater pressures were acquired for all the test cases when the wave chamber was closed upward by the slab. As a result, the magnitudes of the total wave force calculated by integration of the measured wave pressure also were much larger for the caisson breakwater having the wave chamber slab, exceeding the value based on the well known Takahashi's formula (Takahashi and Shimosako, 1994). With respect to the porosity of the front wall, meanwhile, higher pressures were obtained with a larger porosity, at both the first and second wall of the breakwater.