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      • 忠南地域 沓土壤中 有機燐系 農樂의 殘留水準

        崔種佑,李重吉,李奎承 忠南大學校 環境問題硏究所 1987 環境硏究 Vol.5 No.2

        1986년 3월 20일∼4월 6일에 忠南의 大德, 公州, 錦山, 論山, 및 燕岐郡 등 5個 地域에서 總 108點의 畓土壤 試料를 採取하여 8種의 有機燐系 農藥을 대상으로 殘留水準을 조사하여 얻은 중요한 결과를 要約하면 아래와 같다. 1. 모두 7種의 農藥成分을 檢出하였으며 檢出頻度는 Dursban(38.8%), IBP(16.7%) 및 Diazinon(11.1%)의 순이었고, 平均殘留은 Dursban이 0.01ppm, IBP가 0.002ppm이었으며, 기타의 약제는 모두 흔적수준이었다. 2. 檢出試料의 殘留範圍와 平均殘留量은 Diazinon이 흔적∼0.003ppm과 흔적수준, IBP가 흔적∼0.196ppm과 0.01ppm, 그리고 Duraban은 흔적∼0.15ppm과 0.025ppm이었다. 3. 지역별도의 錦山郡과 燕岐郡에서 타지역보다 Dursban의 檢出頻度가 높은 것으로 나타났다. Residue levels of 8 organophosphorous pesticides were evaluated on 108 paddy field soils collected from 5 districts of Chungnam area during March, 20-April, 6, 1986. 7 chemicals were detected and showed the highest detection frequency on Dursban (39.8%) and the lowest on Phentoate (1.9%), also average residue levels were 0.01ppm on Dursban, 0.02ppm on IBP, and trace on the other detected pesticides.

      • SCIEKCI등재

        제주도의 감귤및 감귤원토양에 관한 잔류농약조사 : 제2보 , 감귤원 토양중의 농약잔류에 관하여 Part 2. On the Pesticide Residue of Citrus Orchard Soil

        이규승 한국농화학회 1980 Applied Biological Chemistry (Appl Biol Chem) Vol.23 No.3

        A survey of pesticide and copper residues of the citrus orchard soil was conducted during October 1979-June 1980 in Jeju, Seogwipo county. The citrus orchards were classified into five groups according to different cultivated period; 5 year orchard, 10 year orchard, 15 year orchard, 20 year orchard, and 30 year orchard. Each of the above samples was divided again to three layers of soil depth; the surface layer(0∼10㎝), the middle layer (10∼20㎝), and the bottom layer (20∼40㎝). In this experiments, Kelthane and Akar, as well as copper residues were detected in all soil samples. Residue levels of above chemicals were increased in soils of orchard with longer cultivation periods, and at the same time, decreased with soil depth. The residues of those ranged as follows; a) from trace to 1.359ppm in Kelthane, b) from trace to 0.925ppm in Akar, and c) from trace to 40.734ppm in copper. It is noted that the average residues of Kelthane was 0.251ppm, Akar, 0.120ppm, and that of copper was 2.168ppm, respectively.

      • 트랙터 부착용 로더 기구부의 기구학적 시뮬레이션 프로그램 개발

        이규승,박원엽,노광모,김준호 성균관대학교 생명공학연구소 1999 生命工學硏究 Vol.5 No.1

        A loader mechanism mounted on tractor was modeled for kinematic analysis, and a computer simulation program was developed by using Cartesian coordinate approach, in order to remove the burden of routine derivation and computation from the engineer. The results of kinematic analysis was compared with those of a commercial CAD program. The results of this study was summarized as follows. 1. The results of the simulation showed good agreement with results of the commercial CAD program. This program could be used for predicting the kinematic properties of each links on the loader mechanism. 2. The velocity of bucket which affect the performance of loader increased very quickly just before the finishing point of boom operation, and acceleration also increased sharply at this point. Thus it is concluded that when bucket is rolling, maximum reaction force arises. 3. Velocity and acceleration of each links on the loader mechanism changed very quickly when the bucket cylinder started operation.

      • 마늘 파종기 개발을 위한 재배 측면의 기초 연구

        이규승,박원엽 성균관대학교 생명공학연구소 2000 生命工學硏究 Vol.6 No.1

        This study was carried out to investigate the labour requirements and cultivation method of garlic production as a basic reference to develop a garlic planter. Fifty households were surveyed for five major garlic production area, or Danyang, Seosan, Eusung, Namhae and Muan. Cultivation field was mainly upland for Danyang, Seosan, and Muan, and lowland for Eusung and Namhae. The slope of fifty five percent of cultivation field was less than 2% and that of 39% of cultivation field ranged from 2 to 30%. For the most of major garlic production area, the width of ridge ranged from 150 to 180 cm except for the Eusung area where ridge ranged from 360 to 400 cm. Furrow width ranged from 30 to 40 cm for the most of the cultivation field. Planting distance was 15∼20 cm and planting width was 5∼10 cm for the most of the cultivation field. Planting depth was 2∼4 cm for Korean local cultivar and 3∼6 cm for Chinese cultivar. For the most of the cultivation area, garlic clove was planted in upright position by ones. For the most of the cultivation area except Muan, plastic film without hole was mulched after planting. Plastic film with 14∼16 hole in a line was used for mulching in muan area.

      • 마늘재배의 생력기계화 시스템 모형

        이규승,박원엽,신익환 성균관대학교 생명과학자원연구소 1996 生命資源科學硏究 Vol.3 No.1

        Garlic is one of major vegetables and grown throughout the country of Korea. But the average farm size of garlic production is about 0.3ha and most of the farming operation for garlic production are done by human labour. There are more than ten operation steps for garlic production but only two steps are mechanized, or land preparation and polyethylene covering. Thus production cost is very high and the price of garlic is about 2 to 4 times higher compared with that of international marketing price. We evaluated present production system and problems of garlic production, and suggest mechanized garlic production system for lowering the production cost of garlic.

      • 플라우의 경운저항 예측 관련 국내 논 토양의 물리적특성

        이규승,박원엽,권병기 성균관대학교 생명과학자원연구소 1996 生命資源科學硏究 Vol.3 No.2

        Two dimensional and three dimensional model for an inclined blade was evaluated to decide the soil physical properties which is necessary for draft prediction of moldboard plow. From the above model, soil cohesion, soil internal friction, soil-metal friction, soil-metal adhesion and bulk density were decided as soil parameters which are needed for computer simulation. Besides above soil parameters, soil moisture content and soil texture were measured for more information at the Iri, Namyang, Yeoju, Pyeongtaek, Asan, Suwon, Chungju, Milyang, Kimhae, Sangju, Kimpo and Kanghwa area from October to November and from March to May, from 1995 to 1996. The most popular soil texture was silty loam and loam The range of soil bulk density was 1500∼1700 kg/㎥. The range of soil cohesion was 10∼15 kPa and that of internal friction angle was 40∼60 degree. The range of soil-metal friction coefficient and adhesion was 0.3∼0.8 and 1.0∼3.0 kPa.

      • 트레드밀 운동이 본태성고혈압 흰쥐의 혈압에 미치는 영향

        김일곤,강병길,이규승 牧園大學校 1997 論文集 - 牧園大學校 Vol.33 No.-

        본 연구의 목적은 8주간 트레드밀 운동이 본태성 고혈압 흰쥐의 혈압에 미치는 영향을 규명하는데 있다. 실험동물로서는 8주령된 본태성 고혈압 흰쥐(180마리)를 실험1, 실험2 집단으로, 그리고 정상흰쥐(90마리)를 비교집단으로 구성하였다. 실험 1집단에는 쥐 트레드밀을 이용해서 주당 4일, 하루에 30분씩 8주간 운동을 실시하였다. 이때 적용된 운동강도는 15m/min였다. 혈압과 체중은 실험동물을 사육하면서 집단별로 주 1회 측정하였다. 실험 결과는 다음과 같다. 1. 혈압에 있어서, 실험 1집단은 시간이 경과함에 따라 실험전인 8주령때 혈압과 거의 같은 수준을 유지하고 있는 반면에, 실험 2집단은 계속 상승하여 전형적인 고혈압을 나타내었다. 2. 체중은 세집단 모두 시간이 경과함으로써 증가하는 경향을 보였으나, 유의한 차이는 나타나지 않았다. 이상의 실험결과를 종합해 볼 때, 트레드밀 운동은 본태성 고혈압 흰쥐의 혈압 상승 억제에 큰 비중을 차지한다는 사실이 규명되었다. The purpose of this study is to investigate the effect treadmill exercise of BP of EHR Experimental animals were EHR(180) and SD(90) and they were divided into three groups : a experimental group1 (practice group), a experiment group2(nonpractice group). and a comparative group (normal group). The experimental group 1 was practicing on a treadmill at 15m/min exercise intensity for 30 minutes a day four times per week for eight weeks. While raising experimental animals. We measured BP for each group once a week. We have reached the following results. 1. As time passed. BP in the experimental group 1 was almost equal to BP eight weeks ago. BP in the experimental group 2 continued to rise and then showed typical hypertension. 2. The weight of all three groups were inclined to increase as time passed. but it didn't present any noteworthy differences. According to the analysed result of the above experiment. endurannsce exercise becomes an important factor in preventing the raising of BP of EHR.

      • KCI등재

        製紙슬러지와 슬러지 施用土壤中의 有害性分에 관하여

        李奎承,崔鍾佑,趙丁禮,金文圭 충남대학교 농업과학연구소 1992 농업과학연구 Vol.19 No.2

        In order to use organic resource like a compost 44 samples of paper mill sludge were collected from each paper manufacturer. Some metal and PCBs(polychlorinated biphenyls) contents in/on sludge were investigated and metal contents of soil treated with kraft and paper board sludge were checked in contrast io the non treated soil. The staple results were the same as followings. 1. Average contents of Pb in sludge ranged 14.5-25.7 ppm, and Al, Cd., Cu, Fe, Zn were similar concentration to unpolluted soil. Also, Cr and Hg were not detected from any sludge sample. 2. PCBs contents in sludge of kraft. paper board and news print paper were determined. Less than 10 ppb of PCB_s contents were detected from kraft and paper board sludges, but a little more was found in sludge of news print paper. 3. Some metal contents in sludge treated soil were much similar to non-treated soil and the concentration also were ranged under the average of unpolluted natural soil. 4. From We results paper mill sludge seemed to be no harmful effects to soil.

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