이식형 제세동기를 위한 Flyback Converter의 출력보상

卞咭浩,劉永善,李祥準,李鐘雨,金正國,許雄 명지대학교 산업기술연구소 2005 産業技術硏究所論文集 Vol.24 No.-

On the occasion of sudden cardiac fibrillation, it is critical to use the defibrillator which delivers electrical energy across the patient's chest, in short time. Since the capacitor and battery inside 1CD(implantable cardioverter/defibrillator) degrade according to the increase of usage and time, the charging time of capacitor becomes prolonged, in order to compensate the prolonged charging time, we propose an algorithm which controls the charging time by changing frequency and duty cycle of feeding pulses to the input of flyback converter.

稻熱病에 對한 罹病性 程度가 다른 水稻 品種의 發病 期間中 葉身內 Total Phenolics含量의 變化

李殷雄,李변雨 서울大學校 農科大學 1980 서울대농학연구지 Vol.5 No.2

To make clear the relation of total phenolic content in the leaf blade of rice plant to blast disease, the changes in total phenolics in the leaf blade after inoculation of Piricularia oryzae were observed by employing 4 cultivars with different reaction to blast disease and race specific resistant(Jinheung) and susceptible(Nopung) bariety to ??? race. The results were summarized as follows: 1. The increased amount of total phenolics during 11 days after inculation was significantly higher in resistant variety than that in susceptible one, but ther is no relation between varietal resistance and total phenolic contents in the leaves at inoculation and at reading. 2. Total phenolics content in the leaf blade decreased with the increase of nitrogen fertilzer, and the negative correlation was observed between the increased amount of total phenolics during 11 days after inoculation and nitrogen content in the leaf blades. 3. The total phenolics reached its highest amount on 9th day after inoculation in both resistant and susceptible cultivars, while it increased more rapidly and its increment was higher in Jinheung(resistant to ???) than in Nopung(susceptible to ??? race) after inoculation.

Effects of Silicate Application Methods and Rates on Yield, Yield Components and Nutrients Uptake of Rice Plant

李변雨,李殷雄 서울大學校 農科大學 1982 서울대농학연구지 Vol.7 No.2

本 試驗은 珪酸의 分施 및 追肥가 水稻의 水量, 水量關聯形質, 養分吸收 및 生長指標에 미치는 影響을 檢討하기 위하여 遂行되었다. 태백벼를 共試하여 珪酸을 珪灰石으로 10a當 250kg과 500kg의 두 水작을 各各 全量基肥로 施用한 것과 移秧時와 幼穗形成期에 50%씩 分施한 것 그리고 全量을 幼穗形成期에 追肥로 施用하는 6개 處理와 珪酸을 施用하지 않은 對照區를 두었으며 水稻의 吸量과 水量構成要素 그리고 窒素, 燐酸 및 加里의 吸收狀況을 살펴 본 바 그 結果는 다음과 같다. 1. 水量은 對照區에 비하여 珪酸施用區에서 有意하게 많았으나 珪酸의 施用量 및 方法問에는 差異가 없었다. 2. 各穗量構成要素는 珪酸의 施用興部 및 施用方法에 의해서 有意하게 영향을 받지는 않았으나 株當穗數 千粒重 登熟率은 珪酸의 施用方法에 關係없이 珪酸의 施用에 의해서 약간 증가하는 傾向이었다. 3. 出穗期 및 出穗後 30日에 있어서 葉身中의 珪酸含量은 珪灰石 500kg/10a處理에서는 全量基肥 分施 追肥의 순으로 높았으나 250kg/10a處理에서는 施用方法間에 差異가 없었다. 그리고 葉身以外의 部位에서는 施用量 및 施用方法에 따른 珪酸含量의 差異는 없었다. 出穗基에 水稻의 地上部에 吸收된 珪酸의 量은 珪酸의 施用方法에 따라서 差異가 認定 되었으나 出穗後 20日에 있어서 處理間差異는 더 작아 졌다. 4. 地上部 各部位에 있어서의 窒素含量은 珪酸施用興否 및 施用量, 그리고 施用方法間에 差異가 없었으나 地上部에 吸收된 窒素의 總量은 珪酸施用에 의해서 증가되었지만 施用方法 間에는 差異가 없었다. 5. 山穗期의 葉身中 燐酸含量은 珪酸의 施用에 의해서 有意하게 낮아졌으나 施用方法 間의 差이가 없었다. 그리고 葉身以外의 部位의 燐酸含量은 出穗期 및 出穗後 30日에 있어서 處理間의 差이가 없었다. 地上部에 吸收된 燐酸의 總量은 珪酸의 詩用에 의해서 增加되는 傾向이 었으나 施用方法間에는 差異가 없었다. 그리고 珪酸의 施用은 燐酸의 이삭으로의 轉流를 촉진하였다. 6. 珪酸의 施用 興否 및 方法은 加里의 含量 및 吸收量에 영향하지 않았다. 7. 出穗後 30日間의 相對生長率 (RGR), 個體群生長率(CGR),은 珪酸의 施用에 위해서 增加되었으나 施用方法間에는 差異가 없었으며 收量은 RGR과 CGR의 增加에 따라서 增加하는 傾向이 었다. 純同化率(NAR)은 段步當 珪灰石을 250kg 全量 基肥로 施用한 區에서 가장 높았으나 그외의 處理間에는 差異가 없었다. 出穗基로 부터 出穗後 30日까지 감소한 地上部乾物重에 대한 同期間中에 增加한 穗重의 比로 算出한 轉移率(TP)은 가장 컸으나 珪酸의 施用方法間에는 一定한 關係가 없었으며 대체로 轉移率이 클 수록 收量은 낮은 傾向이 었다. In the current study it was the objectives to evaluate the split and top dressing of silicate on yield, growth parameters and nutrients uptake of rice plant in field condition. The rice variety used was Taebackbyeo seeded at April 20 and transplanted at June 2. The silicate fertilizer was applied with wollastonite with soluble silica of 10 percent. The amounts of wollastonite applied were 250kg/10a and 500kg/10a each of which was treated all at transplanting, splitly between 50% transplanting and 50% panicle initiation stage, and top-dressed all at panicle iitniation stage. The results obtained are summarized as follows; 1. Grain yield was significantly increased by any silicate applications, as compared with that of control, but there were no significant differences among methods of silicate application. 2. Yield components were not significantly influenced by any silicate treatments, but number of panicles per hill, 1,000 grain weight and ripening ratio tended to be somewhat lower in control than in silicate treated-plots regardless of its application method. 3. The silica content in leaf blade at heading and 30 DAH was significantly affected by the application methods of 500kg/10a wollastonite, showing the order of basal, split and top dressing, but not by those of 250kg/10a wollastonite. And the silica content in the other aboveground parts showed no differences among silicate application methods and rates. The total amount of silica absorbed at heading showed significant differences among silicate application methods but its differences among them got much narrower at 30 DAH. 4. The nitrogen content in each abovoveground part was not affected by silicate application methods and rates, but total amount of nitrogen absorbed by the aboveground part increased somewhat with the silicate application, compared with control, being not affected by its application methods and rates. 5. The phosphorus content in leaf blade at heading was decreased significantly by the silicate applications among whose methods and rates appeared no differences, but there were no differences in other parts of rice at heading and 30 DAH. And the total amount of phosphorus by the aboveground part was significantly higher in silicate application but showed no differences. among rates and methods of silicate application. The silicate application regardless of methods and rates stimulated the translocation of phosphorus to the panicle. 6. Silicate application did not inflnence the silicate uptake and content of rice plant. 7. RGR, and CGR during 30 day after heading were enhanced by silicate application, showing no consistent trends among methods of its application, and the rice yield tended to increase with increasing RGR and CRG. NAR appeared to be highest in basal application of 250kg/10a wollastonite but was not different among the other treatments. The translocation rate, defined as the ratio of straw weight decrease from heading to 30 DAH, was lower with nonsilicate plot and showed inconsistent tendencies with silicate application methods. The rice yield decreased with increasing translocation ratio.

白癬症과 Candida 症에 關한 臨床 및 眞菌學的 硏究

李行雨,卞東吉 고려대학교 의과대학 1974 고려대 의대 잡지 Vol.11 No.1

Studies on the correlation between clinical findings and mycological results of dermatophytosis and candidiasis, and recent distribution of causative organisms of dermatophytosis, were made by investigating 561 clinical mycotic lesions among out-patients of Korea University Medical College Hospital, during a period from March, 1971 to August, 1973. Author also investigated pathogenic fungi distributed on 86 normal 4th toe webs of healthy adults and the varieties of contaminants and it's distribution which were supposed to be reducing the positive culture results. The results obtained were as follows : 1) From keratinous specimens of 86 normal 4th toe webs of healthy adults, fungal elements were detected in 8 cases (9.3%) microscopically by KOH preparation. Eight dermatophytes (9.3%) and 23 candida (26.7%) were isolated by culture examinations. Total 31 cases (36.0%) revealed positive results in either one of both examinations. 2) Among 561 clinical fungal lesions, fungal elements were detected in 448 lesions (74.3%) by KOH preparation. By culture examination, dermatophytes in 350 lesions (62.3%) and candida 128 lesions (22.8%) were isolated. Twenty-nine lesions, however, revealed negative results in either examination 3) Among 353 clinical dermatophytic lesions, candida were isolated in 15 lesions (4.2%) without the isolation of dermatophytes and from 125 clinical candidial lesions the dermatophytes were isolated in 12 lesions (9.6%) without the isolation of candida. 4) The predominant causative organism of all dermatophytic diseases of the glabrous skin was found consistently to be the trichophyton rubrum. The remainders were trichophyton mentagrophytes, epidermophyton floccosum, and trichophyton ferrugineum in decreasing order of frequency. These distribution patterns of causative organism were similar in both hyperkeratotic and vesicular lesions of feet infections. In interdigital lesions, however, the candida (28.1%) was found higher in incidence than trichophyton mentagrophytes (14.4%). 5) The thumb and great toe nails were invaded more frequently than the others and declined in incidence as approaching toward 5th finger and toe nails. The dermatophytic nail infections were more prevalent in the toe nails than in finger nails. In candidial infections, however, the reverse was true. 6) Trichophyton rubrum was the most frequent causative organism in all lesions of the distal invasions of the nails. Trichophyton mentagrophytes, however, was predominant in leukonychia and candida prevalent in paronychial change. 7) Predominant contaminants which disturbed culture examination were aspergillus, penicillium, and hormodendrum, in decreasing order of frequency.

骨走査를 利用한 家兎 下顎骨 骨折의 治愈度 評價

李庚雨,卞種秀 慶北大學校 齒科大學 1985 慶北齒大論文集 Vol.2 No.1

This nuclear medical approach to the study of rabbit mandible fracture was to observe the course of fracture healing and to establish criteria for distinguishing nonunion from normal healing. Twenty hybrid albino rabbits were divided into three groups:control-periosteal incision; experimental I(normal healing)-osteotomy;experimental Ⅱ (nonunion)-osteotomy and polymethyl methacrylate interposing. Sequential bone scan images using radio-nuclide, ^(99m)Tc-MDP, were collected and subjected to computer analysis. The results were as follows: Experimental group showed persistently higher density of bone image and higher maximum uptake counts than control group. The distributional pattern of highest maximum uptake counts showed many on the 3rd week in control group, also on the same week in normal healing group and on the 6th week in nonunion group. Histographic representation of maximum count rates along rabbit mandible showed differences only in the normal healing group. No recognizable peak pattern was revealed by the control group, typical single peak and by the nonunion group, typical double peak. we found a predictable signs on the 2nd week in the normal healing group, converting double to single peaks. The maximum count ratio (experimental group control group) was high on the 1st and 6th week, but lowest on the 2nd week in normal healing group and 3rd week in nonunion group. Sequsntial radiographic examination showed recognizable signs of callus formation of the 3rd week. Microscopic findings of the 2nd week's rabbit in normal healing group revealed abundant osteoblasts, blood vessels and new bone formation around the defected area.

窒素의 分施 및 追肥時期에 따른 水稻品種의 稻熱病 發病과 稻體內 成分含量의 變化

李변雨,李殷雄 서울大學校 農科大學 1980 서울대농학연구지 Vol.5 No.2

To make clear the effects of split application and top dressing time of nitrogen fertilizer on the varietal responses to blast disease incidence and its relation to some chemical contents of rice plant, using Japonica(Pungok: Jinheung) and semi-dwarfs derived from the crosses of Indica×Japonica (Tongil, Milyang 30), nitrogen(15kg/10a) was applied with three different split application rates (100-0-0, 50-50-0, 50-30-20) and 4 different top-dressing times, and mixed conidial suspension of N-2, C-3, IA3 race and isolates from Japonica varieties (Toride, Jinheung) was artificially inoculated with spraying method on the 32nd day after transplanting. The severity of blast disease incidence was measured by counting the number of lesions developed on upper three leaves on the 11th day after inoculation. The results obtained were summarized as follows; 1. Total basal dressing of nitrogen caused severe infection of leaf blast disease in two Japonica cultivars (Pungok and Jinheung), compared with split application, but there were no significant differences among split application rates in two semi-dwarf cultivars(Tongil and Milyang 30.) 2. Top dressing of nitrogen at 12 days before inoculation (20 days after transplanting) led to the most severe out-break of leaf blast disease in all cultivars tested. 3. Nitrogen content in the leaves of rice plant was observed to be higher in more susceptible varieties than that in less susceptible one, while silica content and ratios of silica and total sugar to total nitrogen was higher in less susceptible variety. 4. No significant correlations were observed between blast disease severity and nitrogen conten in the leaves at inoculation of blast disease, while there was significand positive correlation between rice blast disease severity and nitrogen conten in diseased leaves at reading in more susceptible cultivars, Pungok and Tongil, but not in less susceptible cultivars, Jinheung and Milyang 30. 5. Silica conten and SiO₂/N ratio were negatively correlated with blast disease severity at inoculation in Japonica, Pungok and Jinheung but not in semidwarf, Tongil and Milyang 30, and showed the same relations at reading in Pungok and Tongil but not in Jinheung and Milyang 30. 6. Blast disease severity was not significantly related with total sugar, soluble sugar, reducing sugar and their ratios to total nitrogen in all cultivars tested except in Milyang 30, which showed negative correlation with reducing sugar, and ratios of total nitrogen to total sugar, soluble sugar and reducing sugar.

活絡效靈丹이 endotoxin으로 誘發된 白鼠의 血栓症에 미치는 影響

鄭遇悅,田炳薰,李錫雨 대한동의병리학회 1992 동의생리병리학회지 Vol.7 No.-

This study was performed to investigate the effect of Hwallakhyoleungdan(活絡效靈丹) on the intravascular coagulation induced by endotoxin in rats. The intravascular coagulation was induced by injecting endotoxin in the caudal vein of rats. And these rats were treated with extract of Hwallakhyoleungdan(活絡效靈丹) -1.5 ml/200 g (Group Ⅰ) and Hwallakhyoleungdan(活絡效靈丹) -3.0 ml/200 g (Group Ⅱ), which were orally administered. Then, the numbers of platelets, concentration of fibrinogen and FDP(fibrin-fibrinogen degradation products) were measured. The following results were obtained: 1. The number of platelets increased significantly in the Group Ⅱ compared with the control group. 2. Prothrombin time was shortened significantly in the Group Ⅰ compared with the control group. 3. The concentration of fibrinogen increased significantly in the trial group compared with the control group. 4. The degree of concentration of FDP decreased significantly in the Group Ⅱ compared with the control group. According to the above results, it is considered that Hwallakhyoleungdan(活絡效靈丹) has the significant effects on the thrombosis. Therefore, Hwallakhyoleungdan(活絡效靈丹) seem to be applicable to the diseases related to thrombosis.

年週期 Fourier 函數와 氣象要素에 依한 地溫豫測 統計 模型

鄭英祥(Yeong-Sang Jung),李弁雨(Byun-Woo Lee),金炳瓚(Byung-Chan Kim),李亮秀(Yang-Soo Lee),嚴基泰(Ki-Tae Um) 한국토양비료학회 1990 한국토양비료학회지 Vol.23 No.2