소형 흡수식 냉방기용 모델 작동매체의 용해도 및 증기압 특성

이형래(H. R. Lee),구기갑(K. -K. Koo),정시영(S. Y. Jeong),오영삼(Y. S. Oh),백영순(Y. S. Baek) 대한설비공학회 1997 대한설비공학회 학술발표대회논문집 Vol.1997 No.6-1

소형 흡수식 냉동기용 모델 작동 유체의 물성 및 성능 평가

이형래(H.-R. Lee),구기갑(K.-K. Koo),정시영(S. Jeong),김진수(J.-S. Kim),이흔(H. Lee),오영삼(Y.-S. Oh),박달령(D.-R. Park),백영순(Y.-S. Baek) 대한설비공학회 1998 대한설비공학회 학술발표대회논문집 Vol.1998 No.6-3

Carbofuran 수도근부처리가 논거미 밀도에 미치는 영향

최승윤,이형래,유재기,Choi S. Y.,Lee H. R.,Ryu J. K. 한국응용곤충학회 1978 한국식물보호학회지 Vol.17 No.2

Population density of the spiders (Micryphantidae and Lycosidae) in the two Paddy field at Suweon and Iri was studied following single root-zone application of carbofurans encapsulea and liquid-formulated and two to four paddy water applications of carbofuran to rice plants. In two field tests, the spider populations were reduced In all insecticide treatments. Among them, the reduction was greater in the capsule placement of carbofuran than in the liquid injection and broadcast of carbofuran. Their reduction was also enlarged with the increase of application rate of insecticide. The significant reduction of spider population in root-tone appliration of carbofuran was considered due to the food-chain toxicity on the spider-hopper system. 침투성 살충제 Carbofuran의 Capsule 근부처리, 액상근부주변처리 및 수면시용을 실시하였을 때 논거미(늑대거미류와 애접시거미류) 밀도에 미치는 영향을 알아보기 위해 수원과 이리에서 포장시험을 실시하였다. 1. Carbofuran의 처리에 의하여 거미의 밀도가 저하되며 관용방법인 수면처리에 비하여 근부처리의 경우 거미의 밀도가 더욱 낮었다. 2. 액상근부주변처리에 비하여 Capsule 근부처리에서 거미의 밀도가 더욱 낮었다. 3. 근부처리에서나 수면처리에서 약량이 증가함에 따라 거미밀도가 낮어졌다. 4. 무처리에서 거미밀도는 팔굉품종에서 높았고 유신품종에서 낮았으나 약제처리에서 품종간 거미밀도차이는 인정할 수 없었다. 5. 해충의 방제효과가 좋았던 Capsule 근부처리에서 거미 밀도가 낮은 이유는 식물연쇄에 의한 독성 및 살해로 고찰되었다. 6. Carbofuran의 경우 처리방법을 달리하였을 때 거미에 대한 살해를 감소시킬 수는 없을 것으로 사료된다.

보리와 둑세풀에 대한 애멸구$\cdot$끝동매미충의 기주 선택성(제1보)

최승윤,이형래,Choi S. Y.,Lee H. R. 한국응용곤충학회 1976 한국식물보호학회지 Vol.15 No.4

봄철 보리와 둑새풀에 대한 애멸구, 끝동매미충의 기주선택성을 검토하기 위해 실태시험을 실시하여 아래와 같은 결과를 얻었다. 1. 애멸구 약충은 둑새풀이나 벼에 비하여 보리에 대한 식이선호성이 현저히 높고 둑새풀과 벼사이에는 별 차이없이 식이선호성이 낮았다. 끝동매미충 약충은 벼 보다는 독새풀에 대한 식이선호성이 현저히 높었다. 2. 보리, 둑새풀 및 벼에 대한 애멸구의 산란선호성은 기주식물간에 차이가 없었고 끝동매미충은 벼에 비하여 보리와 둑새풀에 대한 산란선호성이 현저히 낮았다. 3. 애멸구는 보리에서 약충의 발육이 빠르고 우화율이 높았으나 둑새풀에서는 발육이 늦고 우화율이 크게 낮았다. 끝동매미충은 보리에서는 약충기 사충율이 $100%$로서 한마디리로 우화하지 못하였으며 둑새풀은 벼에 비하여 우화율이 크게 낮았다. 4. 보리에서 사육한 애멸구 성충의 평균수명과 평균산란수는 각각 32일 182개인데 비하여 둑새풀에서 사육한 것은 성충의 수명이 9일이었고 산란수는 불과 13개이었다. 둑새풀에서 사육한 끝동매층은 성충의 평균 수명은 15일, 평균산란수는 24일기이었다. 5. 벼 진흥의 유묘에서 얻어진 애멸구, 끝동매미충 성충을 보리와 둑새풀에 옮겼을 때 애멸구의 평균수명은 보리에서 27일, 둑새풀에서 9일이었으며 끝동매미층의 평균수명은 보리에서 8일, 둑새풀에서 12일이었다. 6. 월동 애멸구, 끝동매미충의 증식 가능 여부면에서 볼 때 애멸구는 보리를 좋은 기주식물로서 선택하나 독새풀은 그렇지 않으며 보리는 끝동매미충의 기주식물로서 그 가치가 낮아 세대의 증식이 크게 이루어지지는 않을 것 같다. Laboratory experiments were conducted to clarity the early-spline host·selectivity by the small brown planthopper(SBPH), Laodelphax striatellus Fallen, and green rice Leafhopper(GLH), Nephotettix cincticeps Uhle., on the bailey (the variety Suweon #18) and water foxtail (Alopeculus aequadis Sosbol). The host selectivity was evaluated on the bases of feeding and ovipositional perferences of the insects on the plants and their biological effects on the plants. The nymphs of SBPH much more preferred barley for feeding than water forxtail, while the nymphs of GLH relatively prefered water foxtail. There was no significant difference in ovipositional preference by SBPH among the test plants, and ovipositional preference by GLH Ivas significantly lower on barley and water foxtail than on rice. Nymphal growth an4 adult emergence of SBPH were significantly faster and higher on barley than on water foxtail. No adult emergence of GLH was observed on barley, and adult emergence was still quite lower even on water foxtail. The adult of SBPH fed on barley showed longer longevity aad higher fecundity than that of SBPH from water foxtail and rice. The adult GLH fed ell water foxtail shorted relatively shorter longevity and to)ver fecundity than that of GLH on rice. In conculsion, barley seems to be more adequate for spring host of SBPH than water foxtail, but barley may not be quite adequate for spring host of GLH. At presont moment, GLH seems rather to primarily select the water foxtail than barley as a spring host, even if the water foxtail is not so adequate for development of GLH.

Blood Pulsation의 효과가 뇌 활성화에 미치는 영향을 알아보는 방법

이원호,구정훈,이형래,한기완,박진식,김재진,윤강준,김인영,김선일,Lee, W.H.,Ku, J.H.,Lee, H.R.,Han, K.W.,Park, J.S.,Kim, J.J.,Yoon, K.J.,Kim, I.Y.,Kim, S.I. 대한의용생체공학회 2007 의공학회지 Vol.28 No.3

BOLD T2*-weighted MR images reflects cortical blood flow and oxygenation alterations. fMRI study relies on the detection of localized changes in BOLD signal intensity. Since fMRI measures the very small modulations in BOLD signal intensity that occur during changes in brain activity, it is also very sensitive to small signal intensity variations caused by physiologic noise during the scan. Due to the complexity of movement of various organs associated with heart beat, it is important to reduce cardiac related noise rather than other physiological noise which could be required with relatively simple method. Therefore, a number of methods have been developed for the estimation and reduction of cardiac noise in fMRI study. But, each method has limitation. In this study, we proposed a new estimation method for brain activities influenced by blood pulsation effect using regression analysis with blood pulsation signal and the correspond slice of fMRI. We could find out that the right anterior cingulate cortex and right olfactory cortex and left olfactory cortex were largely influenced by blood pulsation effect for new method. These observed areas are mostly on the structure of anterior cerebral artery in the brain. That is convinced with that our method would be valid and our new method is easier to apply in practice and reduce computational burden than the retrospective method.

저소음 안전형 캘리퍼 브레이크 가이드 핀의 사출성형해석

김중희(J. H. Kim),이형래(H. R. Lee),정연수(Y. S. Jeong) 한국기계가공학회 2018 한국기계가공학회 춘추계학술대회 논문집 Vol.2018 No.4

가스 터빈의 고효율 연소실 설계를 위한 범용 연소유동해석 프로그램의 개발

신동신(D. S. Shin),이형래(H. R. Lee),허남건(N. K. Hur) 한국항공우주학회 1997 韓國航空宇宙學會誌 Vol.25 No.5

솔잎혹파리의 藥劑防除에 關한 硏究 Ⅲ. 殺蟲劑의 樹幹注入 孝果

安龍濬,李炯來,宋裕漢,崔承允 서울大學校 農科大學 1981 서울대농학연구지 Vol.6 No.1

A series of experiments were carried out to evaluate some insecticides for control of the pine gall midges (Thecodiplosis japonensis Uchida et Inouye) and to improve the conventional implantation method of insecticides into the tree trunk. The insecticides tested were the emulsion concentrates Dimecron( ) (20-Chloro-2-diethyl carbamoyl-1-methyl vinyl dimetyl phosphate, 50%), Folimat( ) (0,0-dimethyl-S-(N-methyl carbamoyl-methyl)-phosphorothioate, 50%), Azodrin( ) (Dimethyl phosphate of 3-hydroxy-N-methyl-cis-crotonamide, 24%), Metasystox( ) (S-2-(ethyl-sulfinyl) ethyl 0,0-dimethyl phosphoro-thioate, 25%), Bux( ) (m-(1-methyl-butyl) phenyl-methyl carbamate, 24%), and Bassa( )(2-Secondary-butyl phenyl-N-methyl carbamate, 50%). The insecticides were implanted into the tree trunk (8 to 10cm in diameter of breath height) at the rate of 0.3ml per cm in diameter of breath height by three different methods; method (A) was the direct implantation into the holes of 1.2cm in diameter and 3cm in depth bored out by the hand drill (1.2cm in diameter), method (B) the implantation through the plastic syringes (2.5ml) inserted in the holes of 1.2cm in diameter and 1.5cm in depth bored out by the hand drill (1.2cm in diameter), and method (C) the implantation through the syringes inserted in the holes of 0.34cm in diameter and 1.5cm in depth bored by by Mauget type's drill bit. The results obtained were as follows: 1. The insecticide Folimat( ) showed the highest effectiveness for control of the pine gall midges, and following Dimecron( ), Azodrin( ), and Metasystox-R( ). However, Bux and Bassa were ineffective. 2. Effectiveness of the trunk implantation of the insecticides to the insects was varied with the implantation methods; methods (A) and (B) were much more effective and laborous in the implantation than the method (C), and method (C) showed the lowest effectiveness possibly due to the low infiltration of the insecticides into the tree trunk. Method (C), however, required the least labour in the implantation and it was considered as the most feasible implantation method as far as the recovery of the holes bored was concerned. 3. Generally, the treatments of June 13 showed more effective control than those of May 16 and 30. Folimat( ) showed very good residual effectiveness, and Dimecron( ), Azodrin( ), and Metasystox-R( ) were relatively short and poor in their residual effectiveness. 4. In this experiment, there was no any significant maldistribution in the gall incidences and damaged-marking needles in accordance with the foliar parts of the trees, the directions of the implantation, and the number of syringes inserted in the methods (B) and (C). 5. The insecticides Dimecron( ), Folimat( ), Azodrin( ) and Metasystox( ) induced the great number of injured needles in which no larva was, and they caused the lower larval population in the gall.

이화명충에 대한 水稻의 品種抵抗性

崔承允,李炯來,宋裕漢 서울大學校 農科大學 1976 서울대농학연구지 Vol.1 No.2

Fifteen varieties of rice were tested in field experiments for their resistance to the striped rice borer, Chilo suppressalis Walker, under natural infestations. The resistance was evaluated on the bases of borer damages, larval survivals and larval weights. Further, the associations between several plant morphological characters and the development of white heads were studied. Formations of dead hearts and white heads were varied with the varieties. In some of the varieties their susceptiblity was changed with the growth phases; the varieties Zenith. Rexoro, Yushin and Shenshuraku were comparatively lower in percentages of dead hearts but they became significantly higher in percentages of white heads. The varienties Tongil (Suweon 213-1), Suweon 240, Tetep, IR-26 and IR-747 reacted as resistant. The varieties reacting as resistant had significantly lower larval populations than did the varieties reacting as susceptible. Larval weights also were generally higher on susceptible than on resistant varieties, although they were not consistant on some of the varieties such as Namsun-13, Jinheung, Yushin, etc. Percentages of white heads were negatively correlated with the number of tillers per plant ?? , but they were not significantly correlated with the plant characters such as external diameter of the culms at base, plant heights, height of culms, length and width of the flag leaf, and lengths of the second and third elongated internodes.

제제방법별(製劑方法別) 혼합입제(混合粒劑) 농약의 특성과 약효

박영선,오병열,심재완,강창식,이형래 한국농화학회 1986 Applied Biological Chemistry (Appl Biol Chem) Vol.29 No.1

A comparative study of chemical characteristics, efficacy and relative merits of extruded and coated granules, containing fungicide and insecticide. was conducted under laboratory and field conditions. Probenzole(3-allyloxy-1,2-benzisothiazole 1,1-dioxide) and carbofuran(2,3-dihydro-2,2-dimethyl-7-benzofuranyl methyl carbamate) were chosen as toxicants for rice blast(Pyricularia oryzae) and brown planthopper (Nilaparvata lugens) control, respectively. Stability of active ingredients in coated granule was superior to the extruded one under accelerated temperature. Active ingredient dissolution of coated one into distilled water showed slow- release pattern. Pesticide residues in rice (Oryzae saliva, Chucheongbyeo) shoos applied with extruded one at the dosage of 3㎏/10a retained higher levels than those with coated one on two days after application, while the residue levels were a reversed tendency on eight days after application. Efficacy on rice blast exhibited minute differences between the granules, on the other hand efficacy on brown planthopper by coated one was of higher rank than that by extruded one. Production cost of the combined pesticide granule by coating method could be cut down by 6% as compared to extrusion method.