水稻의 登熟向上에 關한 硏究

諸商律,李寅杰,김랑춘,李準琸,張南日,洪鍾旭 慶北大學校 1974 論文集 Vol.18 No.-

This study was made to get the cultural information for increasing yield with recently improved variety, investigating the effects of different transplanting date and seed size, the number of plant per hill on the growth, and the yield and yield components in rice. The results obtained were summaried as follows: 1. In larger seed, the percentage of germination was higher and the early growth was more vigorous. However, there appeared no effects of seed size in the later growing period. 2. When the young plants sown on April 26 were transplanted on 5th, 15th, 25th of June and 5th of July with 10-days interval, the heading date was promoted in earlier transplanted plots. The days to heading, however, was shortend. 3. In the case of the earlier transplanting in Tongil variety, the maximum number of tillers was increased, the percentage of effective tillers was decreased, and the rate of ripened grains was slightly higher. The yield was the highest in the transplanted plot of June 25. The next came the transplanted plots of 25th, 5th of June and 5th of July. In the early transplanted plot of Palkweong variety, heading was also promoted. The days required for heading were also proportionly shortend, the number of the effective tillers was smaller and the percentage of ripened grains also decreased. The productivity was the highest in transplanted plot of June 25. 4. When the number of plants per hill was increased, the heading date was promoted, the number of panicles was high and the number of grains per panicles was decreased. In the early transplanting of Tongil variety, the yields was the highest in 4-plants plot. When transplanted late, it was the highest in 6-plant plot. In Palkweong variety, there was general tendency of increasing of yield as the number of plants per hill increased. 5. The dwarf disease of Tongil variety and the stripe disease of Palkweong variety occurred much in case of the lesser number of plants per hill and the earlier transplanting.

香喫味葉煙草의 國産化에 關한 硏究 : 第1報 被覆材培 및 M.H. 處理가 Turkey葉의 收量 및 品質에 미치는 影響 Part 1, The Effects of Vinyl Mulching and Chemical Controller Maleic Acid Hydrazide on the Leaves Yield and Quality of Turkish Tobacco

李寅杰,李準琸 慶北大學校 1973 論文集 Vol.17 No.-

Experiment on the effects of vinyl mulching and chemical controller maleic acid hydrazide to Turkish tobacco variety Samsun-Maden were conducted at the Taegu Tobacco Experiment Station during the 1972. The concentration of M. H. was 0.5 per cent solution at the rate of 15ml per plant and the numbers of M. H. treated times were divided into control and from once to trice at intervals of eight days before flowering date. The results may be briefly summarized as follows: 1. Vinyl mulching had an effect to promote the early plant growth compare with nonmulching, and the reverse was the case in late plant growth. 2. There was a trend to decrease significantly the percentage of dry-up leaves with increase in the numbers of M. H. treated times and increase the percentage in the vinyl mulching blocks compare with non-mulching. 3. Total dry weight of each treatment appeared no significant differences from others, but the increases in dry weight of leaves from once or additional treatment of M. H. showed significant differences and the reverse was the case of roots and tops. 4. The maturing of leaves were promoted significantly by the treatment of vinyl mulching or M. H., and it also proved that the effect of additional treatment of M. H. 5. Yields were increased significantly with increase in the numbers of M. H. treated times, but not appeared the significant difference in quality. 6. Total alkaloid was decreased and the reverse was the case of total sugar in the sun-cured leaves by the treatment of vinyl mulching. When the M. H. was treated only once total alkaloid and sugar in the sun-cured leaves were increased compare with control, but decreased gradually with additional treatment.

麥類의 黴粒防除에 關한 硏究

李寅杰 慶北大學校 1967 論文集 Vol.11 No.-

In Korea, the harvest period of barley is a long rainy season. Occurence of blight disease in barley seedlings is a very serious problem during this period. So that, studies on the basic problems to control this disease was carried out to solve these problems in this paper. Phenyl mercuric acetate and 0.2% CuSO_4 were sprayed to barley seedlings. After 24 hours treatment, artificial precipitation were continuously applied to barley seeds. The results obtained were as follows: 1. Effect of P. M. A. on the control of blight disease was so high and showed 0.1% leveled significant contrast with the control plot. But, in the plot of CuSO_4, significant was not appeared. 2. It is serious fact that Hg remains on the barley seeds, which is harmful to the health of mankind as shown an Table 5. in P. M. A. plot.

香喫味의 葉煙草의 國産化에 關한 硏究 : Turkey葉의 生長에 미치는 生長 調節物質의 效果 Effects of growth regulators on the growth of Turkish Tobacco

李寅杰 경북대학교 교육대학원 1976 논문집 Vol.6-7 No.-

Experiment on the effect of foliar application with varied levels of B-9 (Alar) and M.H. (Maleic Acid Hydrazid) at 4 days after transplanting and at budding date of Turkish tobacco variety, Samsun-maden were conducted. The results summarized were as follows. 1. Treatments with 5,000 ppm of B-9 resulted in shortening stem height and delayed the flowering date for about 3 days in Turkish Tobacco variety, Samsun-maden. 2. There was a tendency to decrease the percentage of dried-up leaves and leaf area per plant but increase the dry weight and number of leaf hair per leaf area in the heighter levels with B-9foliar application at 4 days after transplanting and in case of foliar application of M.H. and B-9 at budding date, the effects of decreasing the leaf area were prevailed in upper posited leaves only. 3. There was a tendency to increase the nicotine and decrease the soluble sugar in the dried leaves by the foliar application of B-9, and the case of M.H. was reverse.

급성 담낭염에 대한 내과적 치료의 역할

강성원,조한래,한설해,박현주,정인성,홍선미,김성걸,이헌영 충남대학교 의과대학 지역사회의학연구소 1993 충남의대잡지 Vol.20 No.2

In 58 patients who were admitted to department of internal medicine, ChungNam national university hospital from January 1989 to March, 1993. We evaluated for medical treatments and the following results were obtained. 1) The ratio of male and female was 1 : 1 and mean age of the patients was 57.4 years. 2) At arrival on hospital, the most common clinical symptom was pain in right upper quadrant and epigastrium(93.1%), the remainders were fever and chill(79.3%), nausea(51.7%) and vomiting(36.2 %) in order of frequency. 3) The most common physical findings was tenderness on the right upper quadrant and epaigastrium(98%), the remainders were jaundice(50%) and palpable gall bladder(13.8%) in order of freguency. 4) In laboratory examination, elevated levels of ESR(82.8%), leukocytosis(67.2%), elevated levels of AST(62.0%), ALT(50.0%), serum total bilirubin(51.7%) and alkaline phosphatase (43.1%) were noted. 5) The mean period of NPO was 3.9 days and the mean hospital period was 13.5 days. 6) The rates of combined complications in patients with acute cholecystitis were 17.2%; these are gall bladder empyema(5.2%), hydrops(5.2%), perforation(3.4%), sepsis(3.4%) and intestinal obstruction (1.7%). 7) In 96.6 percent of 58 cases, the symptoms of acute cholecystitis were improved by conservative management. 8) The mean follow-up period was 25.5 months and the recurrence rate was 10% during this period.

穗發牙抑制에 關한 硏究 : 麥類種子의 後熱其間에 關하여

李寅杰 慶北大學校 1968 論文集 Vol.12 No.-

Germination of barley ear occurs during the rainy season of the year in Korea. Important reason of germination is based on the length of after-ripening. 31 barley varieties cultivated in Korea were collected to study on the germination by their length of after ripening. The results obtained were as follows; 1) Germination capacity of barley ear showed considerable difference between varieties according to their length of after-ripening. 2) All the varieties were low in the germination capacity except Jae-re Jang-mang and Kyung23 under the range of 50% germination among 31 selected varieties. 3) Barley varieties cultivating in Kyung-pook province are high in the ear germination capacity. 4) Ear germination capacity was low on the barley varieties developed at Grops Experiment Station. O.R.D. in Suwon. 5) Low ear germination varieties increased after beginning of ear germination while high varieties decreased after beginning of ear germination.

Mechanotransduction of human pluripotent stem cells cultivated on tunable cell-derived extracellular matrix

Kim, In Gul,Gil, Chang-Hyun,Seo, Joseph,Park, Soon-Jung,Subbiah, Ramesh,Jung, Taek-Hee,Kim, Jong Soo,Jeong, Young-Hoon,Chung, Hyung-Min,Lee, Jong Ho,Lee, Man Ryul,Moon, Sung-Hwan,Park, Kwideok Elsevier 2018 Biomaterials Vol.150 No.-

<P><B>Abstract</B></P> <P>Cell-derived matrices (CDM) are becoming an attractive alternative to conventional biological scaffolding platforms due to its unique ability to closely recapitulate a native extracellular matrix (ECM) de novo. Although cell-substrate interactions are recognized to be principal in regulating stem cell behavior, very few studies have documented the acclimation of human pluripotent stem cells (hPSCs) on pristine and altered cell-derived matrices. Here, we investigate crosslink-induced mechanotransduction of hPSCs cultivated on decellularized fibroblast-derived matrices (FDM) to explore cell adhesion, growth, migration, and pluripotency in various biological landscapes. The results showed either substrate-mediated induction or inhibition of the Epithelial-Mesenchymal-Transition (EMT) program, strongly suggesting that FDM stiffness can be a dominant factor in mediating hPSC plasticity. We further propose an optimal FDM substratum intended for long-term hPSC cultivation in a feeder-free niche-like microenvironment. This study carries significant implications for hPSC cultivation and encourages more in-depth studies towards the fundamentals of hPSC-CDM interactions.</P>

고온초전도체 in-situ ramp-edge 형태의 조셉슨 접합 제작 및 특성

허윤성,김진태,황윤석,이순걸,박광서,김인선,박용기,박종철,Hur, Yun-Sung,Kim, Jin-Tae,Hwang, Yun-Seok,Lee, Sun-Gul,Park, Gwang-Seo,Kim, In-Seon,Park, Yong-Ki,Park, Jong-Chul 한국재료학회 1998 한국재료학회지 Vol.8 No.3

본 연구에서는 금속 칼날 마스크와 펄스형 레이저 증착장치를 이용하여 $YBa_2Cu_3O_{7-\delta}$/$SrTiO_{3}$/$YBa_2Cu_3O_{7-\delta}$ 다층박막 형태의 In-situ SIS ramp dege 형태의 접합을 제작하였으며, 이의 특성을 조사하였다. 접합은 RSJ 형태의 전류-전압 특성ㅇ르 나타내고 있으며, 온도 변화에 따른 접합의 normal resistance는 약 $18 \omega$으로 온도에 무관하게 일정한 값을 나타내었다. 접합형태를 이용하여 감도(transfer function, dV/$d\Phi$)가 약 $22\mu$V/$\Phi_{0}$인 dc-SQUID센서를 제작하였으며, in-situ SIS ramp edge 형태의 접합이 센서로의 응용가능성을 충분히 가지고 있음을 보여 주었다. In this study, we have fabricated in-situ multilayer $YBa_2Cu_3O_{7-\delta}$/$SrTiO_{3}$/$YBa_2Cu_3O_{7-\delta}$ ramp edge type junctions by using a metal mask and pulsed laser deposition method and studied the junction properties. The junctions showed RSJ-like I-V characteristics. The normal state junction resistance R, of $18 \omega$ was nearly constant with temperature. The dc-SQUID sensors fabricated with the junctions show a sensitivity that transfer function dV/$d\Phi$)~$22\mu$V/$\Phi_{0}$, indicating that the in-situ ramp edge type junction is potentially useful for sensor application.

消石灰施用이 잎담배 “香草”의 收量 및 Nicotine含量에 미치는 影響

이인걸 慶北大學校 1970 論文集 Vol.14 No.-

Studies were made to investigate on the effect of Calcium Hydroxide to yield and nicotine contents of tobacco Hyangtchio leaf under the field. Tobacco Hyangtchio is a Korean local variety and light air-cured type. The applicatation amounts of Calcium Hydroxide was 150㎏, 300㎏ and 600㎏ Per 10a. respectively. Results of the experiment were Summarized as follows; 1. It was recognized that the Calcium Hydroxide have a effect to accelerate the growth of leaf tobacco Hyangtchio. 2. The blocks treated with the Calcium Hydroxide increased the yield by 20 to 25 percentage than control. 3. The blocks treated with the Calcium Hydroxide decreased by 16 to 25 percent in the main leaf and 13 to 27 percent in the top leaf than the control block. And there was a tendency to decrease the nicotine contents according to increase the application amounts of Calcium Hydroxide, but no significant between the blocks applicated 300㎏ and 600㎏ per 10are.

穗發芽抑制에 關한 硏究(第一報)

李寅杰 慶北大學校 1964 論文集 Vol.8 No.-

Harvesting period of barley, in Korea, is belonged to the long rainy spells and damages from it are very serious. The author has studied on the degree of delayed germination of barley with effective materials to delay its germination, which is much different from the past negative operations of the kind. The results from this experiment are as follows: 1) Kyung-yuk, a variety of barley was selected for the experiment fo delayed germination on barley seed. 2) Materials for this experiment are Indole Acetic Acid, Maleic Acid Hydrazid. 3) As the results of Table Ⅰ and 11, 0.1% Indole Acetic Acid plot has been signified at 5% level contrasting to the control plot.