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Studies on the Natural pH Adjusters for Kimchi (김치용 천연 pH 조정제 연구)

  • Jang, Kyung-Suk
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.18 no.3
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    • pp.321-327
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    • 1989
  • The buffer activities of 72 species of natural pH adjusters in Chinese herb medicine materials of food materials by 100% acetic acid$({\mu}{\ell})$ titration until pH 4.0 in the $100m{\ell}$ of 1 % solution of the pH adjuster were evaluated for their abilities to retard acidification of Kimchi. There were 14 species above 100 of buffer activity such as Glycerehizae Radix(150), Siler divaricatum Benthan et Hooker etc. among selected Chinese herb medicine materials. In selected Chinese herb medicine materials, the buffer activities of Erillae Herba+Glycyrehizae Radix, Erillae Herba+Dioscoreae Rhizoma, Erillae Herba+Glycyrehizae Radix, Erillae Herba+Dioscoreae Rhizoma, Erillae Herba+Puerariae Radix, Chrysanthenum sinense+Puerariae Radix, Alismatis Rhizoma+Angelicae gigantis and Dioscoreae Rhizoma+Puerariae Radix were above 150 by same amount blending each other. Species and buffer activities of natural pH adjusters, which are higher buffer capabilities in mushroom, bean and vegetable classes were mungbean(207). soybean(160), pease(190), fungus(225), Garland chrysanthemum(200), amaranth(175), wild sesame leaf(200), parsley(202) and green pepper(257) etc. Species and buffer activities of higher buffer capabilities of natural pH adjusters of natural blending pH adjusters which is synergistic effect or natural blending pH adjusters which is synergistic effect mixing with radish juice were mung bean+peas(272), mung bean+soy bean(282), fungus+parsley(302), Garlan chrysanthenum+amaranth(300), Garland chrysanthenum+wild sesame leaf(277), amaranth+green pepper(300) and amaranthe+parsley(280) etc and those mixing with cabbage juice were peas+fungus(202), Garland chrysanthenum(207) and fungus+parsely (205) etc.

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COFINITE PROPER CLASSIFYING SPACES FOR LATTICES IN SEMISIMPLE LIE GROUPS OF ℝ-RANK 1

  • Kang, Hyosang
    • Communications of the Korean Mathematical Society
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    • v.32 no.3
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    • pp.745-763
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    • 2017
  • The Borel-Serre partial compactification gives cofinite models for the proper classifying space for arithmetic lattices. Non-arithmetic lattices arise only in semisimple Lie groups of ${\mathbb{R}}$-rank one. The author generalizes the Borel-Serre partial compactification to construct cofinite models for the proper classifying space for lattices in semisimple Lie groups of ${\mathbb{R}}$-rank one by using the reduction theory of Garland and Raghunathan.

Studies on the Modeling of Controlled Environment in Leaf Vegetable Crops (엽채류의 환경제어 모델연구 III. 배지와 양액 종류에 따른 식물의 생육변화)

  • 박권우;신영주;원재희;이용범
    • Journal of Bio-Environment Control
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    • v.2 no.1
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    • pp.9-15
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    • 1993
  • Chinese white cabbage, Chinese flat cabbage, lettuce, garland chrysanthemum, and green perilla were grown in nutrient solution culture to investigate the effects of various media and nutrient solutions. The culture media were sand, mixed substrate(peatmoss : sand= 1 : 1), and non-media(deep-flow culture). The nutrient solutions were Cooper's, Hoagland's, and Yamazaki's solution. Plants were grown under different treatments for three weeks. Generally, the growth was greatest in non-media culture and followed mixed substrate culture, and poorest in sand culture. In non-media culture, the growth of Chinese white cabbage, Chinese flat cabbage, lettuce, and green perilla was good in Yamazaki's solution. And regardless of nutrient solution, garland chrysanthemum was good in non-media culture. Relative chlorophyll was not different among the treatments.

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Relation between Growth Condition of Six Upland-Crops and Soil Salinity in Reclaimed Land (간척지에서 토양 염류와 6개 밭작물 생육과의 관계)

  • Lee, Seung-Heon;Hong, Byeong-Deok;An, Yeoul;Ro, Hee-Myong
    • Korean Journal of Soil Science and Fertilizer
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    • v.36 no.2
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    • pp.66-71
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    • 2003
  • This study was carried out to obtain basic data for selecting the applicable crops in reclaimed land and to provide guidelines for the rotation between paddy and upland cropping. Field experiment was conducted with six summer crops(garland chrysanthemum, young radish, small radish, kale, lettuce, red lettuce) at Dae-Ho reclaimed experiment plots in Dangjin province. Dry weights and plant heights of harvested crops were measured and soil chemical properties were analyzed. Plant height and dry weight decreased significantly with increasing soil saturation paste extract electrical conductivity(ECe) and sodium adsorption ratio(SAR). The threshold ECe of salt inhibition for six crops was less than $1dS\;m^{-1}$ for young radish and kale, greater than $4dS\;m^{-1}$ for garland chrysanthemum, and greater than $6dS\;m^{-1}$ for small radish, lettuce, and red lettuce. At higher ECe that inhibits crop growth, with every increase in $1dS\;m^{-1}$, dry weight index decreased by 3.35 for kale, 3.92 for small radish, 3.98 for young radish, 4.66 for lettuce, 7.57 for garland chrysanthemum, and 8.45% for red lettuce, respectively. The ECe causing 50% reduction of dry weight index was $18.9dS\;m^{-1}$ for small radish, $17.3dS\;m^{-1}$ for lettuce, $15.4dS\;m^{-1}$ for kale, $12.0dS\;m^{-1}$ for red lettuce, $11.3dS\;m^{-1}$ for young radish, and $11.0dS\;m^{-1}$ for garland chrysanthemum. Among the tested 6 summer crops through field experiment and in-situ survey, kale was proved to be a favorable vegetable crop at reclaimed tidal land.

New Record of Arctoseius cetratus (Sellnick, 1940) (Mesostigmata: Ascidae) Phoretic to Sciarid Fly from Mushroom Culture in Korea

  • Keum, Eunsun;Kang, Mingu;Jung, Chuleui
    • Korean Journal of Environmental Biology
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    • v.33 no.2
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    • pp.209-214
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    • 2015
  • The Mesostigmata is an order of Subclass Acari either parasiting to diverse invertebrates or free-living predatory in terrestrial ecosystem. Phoresy is one of the unique behaviors of wingless arthropod dispersal by attaching winged arthropods. We collected mites attached on the dorsal part of abdomen adult sciarid fly, from mushroom culture. The mites were identified as Arctoseius cetratus Sellnick, 1940 in the family of Ascidae. Arctoseius cetratus has short J2, Z1, Z2, and S1, S2 setae, not reaching the bases of following setae. Posterior half of dorsal shield with longitudinal garland of puncta between J and Z setae, peritremes extending anteriorly to midlevel of coxaII. The genus Arctoseius and species Arctoseius cetratus are the first record in Korea. We provided the detail description of the species including the identification key in the family with some ecological notes.

Severe Root Rot on Hydroponically-Grown Lettuce Caused by Phytophthora drechsleri

  • Jee, Hyeong-Jin;Nam, Ki-Woong;Cho, Weon-Dae
    • The Plant Pathology Journal
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    • v.17 no.5
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    • pp.311-314
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    • 2001
  • Phytophthora root rot of lettuce, which has not been reported in Korea before, occurred severely in liquid hydroponic culture. The disease occurred in all seasons and was most severe in summer from June to August, showing over 90% infection rate in some farms. A total of 51 isolates collected from various farms were all identified as Phytophthora drechsleri. The fungus showed strong pathogenicity to lettuce and Chinese cabbage, moderate pathogenicity to cucurbits and tomato, and weak pathogenicity to pepper. However, the fungus was not pathogenic to other leafy vegetables namely: chicory, kale, endive, garland chrysanthemum, spinach beet, and perilla. Among 10 species of Phytophtora inoculated to lettuce, only P. drechsleri and P. cryptogea were found pathogenic.

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Anomalous Origin of the Left Coronary Artery from the Pulmonary Artery - A Case of Adult Type - (폐동맥에서의 좌관동맥 이상기시증 -성인형 1례 보고-)

  • 정태은
    • Journal of Chest Surgery
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    • v.21 no.5
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    • pp.905-910
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    • 1988
  • Anomalous origin of the coronary artery from the pulmonary artery is a rare congenital coronary artery disease and the origin of the left coronary artery from the pulmonary artery represents the commonest form of these unusual lesions. Because of differences in symptomatology, clinical course and prognosis, this malformation has been divided into infant type[Bl-and-White-Garland syndrome] and adult type on the basis of the absence or presence of collateral circulation between the right and left coronary artery. The latter type has been reported relatively few cases. A 21-year-old male was admitted to the Yeungnam University Hospital, due to study of incidentally noticed heart murmur. At that time he was asymptomatic and past medical history was noncontributory. Chest roentgenogram was within normal limit and electrocardiogram was consistent with hypertrophy of left ventricle. Echocardiogram and aortogram demonstrated markedly dilated and tortuous right coronary artery and anomalous origin of the left coronary artery from the pulmonary artery. To prevent arteriosclerosis, progressive myocardial infarction, infection and aneurysmal rupture, Takeuchi operation which establish a two coronary system by transpulmonary arterial reconnection of the anomalous left coronary artery was done. Postoperative course was uneventful.

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Effects of Blanching Time and Power Setting on Ascorbic Acid Retention in Microwave Blanched Vegetables (Microwave Oven으로 채소를 Blanching 할 때 출력과 시간이 Ascorbic Acid 잔존량에 미치는 영향)

  • 임숙자
    • Journal of Nutrition and Health
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    • v.22 no.3
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    • pp.159-166
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    • 1989
  • The effect of blanching time and power settings of microwave oven on the ascorbic acid retention in seven kinds of vegetables were investigated. The vegetable were blanched for 120 or 180 sec. at three different power setting, 650 watt(high power), 500 watt(medium power) and 160 watt(low power). The retentions of ascorbic acid in cabbage, garland chrysanthemum, mungbean sprout, amaranth and carrot were higher when they were blanched at the high power than those blanced at the lower power stettings. Blanching of spinach and yul-moo(small korean radish) showed that the vitamin was more retained by the medium power heating. Blanching at the low power revealed that the ascorbic acid retention was reduced remarkably as the blanching time increased. From the scoring difference tests the 10-panel members indicated that the texture of three-tested vegetables was more acceptable when they were blanched at the high power setting.

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Design, Combinatorial Library Synthesis and Biological Evaluation of Nonpeptide Scaffold for Beta Turns

  • Im, I-Sak;Thomas R.Webb;Dona Chianelli;Kim, Yong-Chul
    • Proceedings of the PSK Conference
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    • 2003.10a
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    • pp.91-91
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    • 2003
  • The beta-turn has been implicated as an important conformation for biological recognition of peptides or proteins. We adapted the concept of general Ca atom positioning from the cluster analysis and recombination of each ideal beta-turn conformation pattern by Garland and Dean (1. Computer-Aided Molecular Design, 1999, 13, 469) as one strategy of designing non-peptide beta-turn scaffolds. (omitted)

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Studies on the Pollution of Heavy Metal in Vegetable Crops Grown in Suburban Areas;Part I. Influence of Planting Time and Age of Reclaimed Fields on the Contents of Heavy Metals in Leafy and Root Vegetable Crops (도시근교지역(都市近郊地域)의 채소(菜蔬)에 대(對)한 중금속(重金屬) 오염(汚染)에 관(關)한 연구(硏究) 제(第) 1 보(報) 엽근채류(葉根菜類)의 중금속함량(重金屬含量)에 미치는 재배시기(栽培時機), 매립후(埋立後) 경작연도(耕作年度)의 영향)

  • Park, Kuen-Woo;Hwang, Sun-Koo;Kim, Young-Shik
    • Korean Journal of Environmental Agriculture
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    • v.2 no.1
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    • pp.13-17
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    • 1983
  • The influence of planting time and age of reclaimed fields on the contents of heavy metals in vegetable crops in suburban areas was investigated. Investigated crops were 4 radish cultivars, Chinese cabbage, spinach, Garland chrisanthemum, and Welsh onion. Cd, Pb, Cu, and Zn were analyzed. The results obtained were as follows. 1) For radishes except Altari-mu and Welsh onion, the highest concentrations of heavy metals were recorded in roots whereas, for Chinese cabbage and Garland chrisanthemum, the highest concentration was appeared in leaves. 2) For lettuce, radishes, and spinach, the lowest concentrations of heavy metals were recorded in winter and the concentrations were the same between spring and autumn. 3) In lettuce difference of concentrations of heavy metals were not appeared between field age after reclamation with sewege sludge. 4) The concentrations of heavy metals observed was not harmful to human health.

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