• Title/Summary/Keyword: IRI

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Studies on the Vinyl-mulching Culture of Peanut (땅콩비닐 일피복재배에 관한 연구)

  • Lee, G.B.;La, J.S.;Nho, S.P.;Lee, D.G.
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.24 no.3
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    • pp.67-74
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    • 1979
  • Peanut was cultured with varying planting density and sowing date with and without vinyl-film mulching. Vinyl-film mulching raised soil temperature 4.6$^{\circ}C$ higher than the non-mulched during April and early May, but later-on the soil temperature was similar between the two treatments. The ripening and slender grain ratio increased with closer spacing and earlier sowing. Compared with ordinary cultural practices of May 10th sowing without mulching the peanut yield increased by 9% by mulching sown May 10th, and by 49% by mulching and early sowing April 20th.

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Trace Metal Contents in Urine of School Children around the Industrial Park Area (일부 공단주변 국민학생의 요중 중금속 함량에 관한 연구)

  • Hwang, In-Dam;Son, Wi-Ik
    • 산업보건소식
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    • no.48
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    • pp.9-18
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    • 1987
  • The results of this study which had been investigated to analyse heavy metal levels and to compare lead, cadmium, copper and zinc concentration in urine of children who lived around the industrial area and the agricultural area. Samples were collected and analyzed from September to December 1986 from 7-9 years old children living in Seoul (4 7 cases), lri ( 64 cases) industrial area and Chinan (56 cases) agricultural area. The summarized results were as follows: 1) The concentrations of lead were Seoul 28.7 $\pm$17.7 ug/l, lri 25.3 $\pm$7.5 ug/l and Chinan 19.3 $\pm$5.2 ug/l 2) The concentrations of cadmium were Seoul 1.5 $\pm$0.8 ug/l, Iri 1.4 $\pm$0.5 ug/l and chinan 0.9 $\pm$0.3 ug/l 3) The concentrations of copper were Seoul 12.8 $\pm$7.0 ug/l, Iri 10.5 $\pm$8.4 ug/l and Chinan 10.0 $\pm$4.5 ug/l 4) The concentrations of zinc were Seoul 383 $\pm$279 ug/l, Iri 329 $\pm$133 ug/l and Chinan 267 $\pm$181 ug/l 5) In lead, cadmium and zinc concentration of children, there were statistical difference between the industrial area and the agricultural area 6) There were no indicated significantly levels by the Sex

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Determination of Ionospheric Delay Scale Factor for Low Earth Orbit using the International Reference Ionosphere Model (IRI 모델을 이용한 저궤도 전리층 지연값 배율 결정)

  • Kim, Jeongrae;Kim, Mingyu
    • Korean Journal of Remote Sensing
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    • v.30 no.2
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    • pp.331-339
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    • 2014
  • Determination of an ionospheric delay scale factor, which converts ground-based ionospheric delay into low Earth orbit ionospheric delay, using the international reference ionosphere model is proposed. Ionospheric delay from international GNSS service model combined with IRI-derived scale factor is evaluated with NASA GRACE satellite data. At approximately 480km altitude, mean and standard deviation of the scale factor are 0.25 and 0.01 in 2004. The scale factor reaches high in night time and Spring and Fall seasons. Ionospheric delay error by the proposed method has a mean of 3.50 TECU in 2004.

A Study on the Glucose and Immunoreactive Insulin Response during Oral Glucose Tolerance Test in Patients with Chronic Liver Diseases (만성(慢性) 간(肝) 질환(疾患)에서 경구적(經口的) 당부하(糖負荷) 시험시(試驗時) 혈당(血糖) 및 혈장(血漿) 인슐린의 변동(變動)에 관(關)한 연구(硏究))

  • Choe, Kang-Won;Lee, Hong-Kyu;Koh, Chang-Soon;Lee, Mun-Ho
    • The Korean Journal of Nuclear Medicine
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    • v.7 no.1
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    • pp.31-38
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    • 1973
  • The blood glucose and plasma immunoreactive insulin(IRI) levels were measured glucose tolerance test in 7 healthy subjects and 6 patients with chronic liver diseases. The glucose tolerance was impaired in 5 of the 6 patients and normal in 1. Plasma IRI responses were markedly increased and delayed in all patients, suggesting insulin resistance. Patients with more glucose intolerance showed less increase in plasma IRI than the group with less intolerance. It is suggested that some insulin antagonists may decrease the peripheral insulin sensitivity and stimulate compensatory hyperactivity of pancreatic islets. If the compensatory hyperactivity is inadequate due to genetic predisposition to diabetes mellitus or exhaustion of ${\beta}$-cells of pancreatic islsts, the glucose intolerance and overt diabetes mellitus may ensue.

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Study on Feeding Habits of Micropterus salmoides in Habitat Types from Korea (서식처 유형에 따른 배스 Micropterus salmoides 식성의 차이)

  • Park, Jong Sung;Kim, Su Hwan;Kim, Hyun Tae;Kim, Jae Goo;Park, Jong Young;Kim, Hyeong Su
    • Korean Journal of Ichthyology
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    • v.31 no.1
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    • pp.39-53
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    • 2019
  • In order to compared the feeding habits of Micropterus salmoides according to the habitat types, the stomach content of a total of 306 M. salmoides were investigated from April to September 2016 in the stream and reservoir. As a result, the highest IRI (Index of relative importance) value in M. salmoides inhibiting the stream and reservoir were identified as fishes. However, the IRI value of crustaceans and insects as well as fishes in M. salmoides inhibiting the reservoir were high, showing a difference in IRI value of M. salmoides inhibiting the stream.

The Effect of Exercise Training (EXE) on Myocardium Glucose Metabolic Phenotypic Proteins and HSP-60 Protein Expression after Ischemia/Reperfusion Injury in STZ-induced Rats (지구성 운동이 STZ-당뇨 유발 쥐의 허혈/재 관류 손상 후 심근의 당대사 관련 표현형 단백질과 HSP-60 단백질 발현에 미치는 영향)

  • Bae, Hee-Suk;Um, Hyun-Seob;Kang, Eun-Bum;Yang, Chum-Yeol;Lee, Yong-Ro;Lee, Chang-Guk;Cheon, U-Ho;Jeon, Hye-Ja;Cho, In-Ho;Cho, Joon-Yong
    • Journal of Life Science
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    • v.19 no.5
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    • pp.644-651
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    • 2009
  • The objective of this study was to identify EXE (1 hr a day at 21 m/min for 5 day/wk, at 0 % grade for 6 wk) on myocardium glucose metabolic phenotypic proteins (AMPK-PGC-1${\alpha}$-GLUT-4) and HSP-60 protein expression after ischemia/reperfusion injury (IRI) in STZ-induced rats. EXE was performed using STZ-induced diabetic rats on a rodent treadmill (28 m/min, 1 hr/day, 5 day/wk for 6 wk). The results of this study suggest that i) serum insulin level was not changed among groups (p>l0.05). ii) the LVDP level increased significantly in the STZ-EXE-IRI group compared to the STZ-IRI group at 60 min (p<0.01), 70 min (p<0.05) and 80 min (p<0.05) after reperfusion, respectively, and iii) AMPK phosphorylation (p<0.01), PGC-1${\alpha}$ protein (p<0.001), GLUT-4 protein (p<0.001) and HSP-60 protein expressions (p<0.05) increased significantly in the STZ-EXE-IRI group compared to the STZ-IRI group. In conclusion, the findings of the present study reveal that EXE may provide therapeutic value to insulin dependent diabetic patients with peripheral insulin resistance and myocardium injury by improving glucose metabolic proteins (AMPK-PGC-1${\alpha}$-GLUT-4) and heat shock protein-60 (HSP-60), along with increasing LVDP levels and decreasing glucose levels. Therefore, EXE protects the STZ-induced diabetic myocardium injury against ischemia/ reperfusion injury.

A Study on the Use and Extention of Native Species of Trees through the Field Survey of Present Status of Landscape -The Case Study on 38 Elementary, Middle and Schools in Iri city- (학교 조경수목 직재현황 조사를 통한 향토수종 이용 확대에 관한 연구 -이리시 초.中고등학교 38개교를 대상으로-)

  • 박영수;심경구
    • Journal of the Korean Institute of Landscape Architecture
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    • v.21 no.1
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    • pp.31-50
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    • 1993
  • This study was conducted to investigate the plants status of the woody landscape plants species of 38 elementary, middle, and high school in Iri city, and to obtain some fundamental information for development and use of native species of trees. The results are summarized as follows: 1. Landscape plants species of 38 elementary, middle and high school in Iri city was 55 families, 164 species, and 85, 045 trees and the average of landscape plants species of 17 elementary schools was 50.5 families, 3, 010 trees, on the other hand, middle and high school was 42.4 families, 1, 609 trees. 2. Plants species by type was Deciduous Broadleaved Tree 32.9%, Deciduous Broadleaved Shrub 25.6%, Evergreen Coniferous Tree 14.6%, Evergreen Broadleaved Shrub 9.7%, Vine 4.8%. Evergreen Trees on the other hand, according to the utilization rate 'others' was 32.2%. 3. The rate of plants species of the Evergreen Trees to the Deciduous (except Vine and 'others') was 34:66. on the other hand, rate of quantity was 50.5:49.5 and the rate of the trees to the shrubs(except Vine and 'others') was 58:42. to the plants species and to the quantity of the number of trees was 25.9:74.1. 4. Plants species of fruit plants of 38 elementary, middle and high school in Iri city was 31 species to the 164 species. The rate of frequency was Poncirus trifoliata 27.8%, Lycium chinense 25.1%, Ginkgo biloba 16.7%, to the quantity of the number of trees, fruit plants was 2, 605 trees to the 85, 045 trees and the frequency was 3%. 5. School trees and flowers of 38 elementary, middle and high school in Iri city were appointed 17 elementary school, on the other hand, middle and high schools were only 4 middle and high schools. Plants species of the best of frequency school tree was Zelkova serrata and school flower was Rosa spp.. 6. The rate of the native species to the introduced species was 73.8:26.2. on the other hand, the rate of quantity by the number of trees was 84.7:15.3 to the type, the rate of frequency of plants of native species Evergreen trees was Thuja orientalis, deciduous was Ginkgo biloba, Vine was Wisteria floribunda and 'others' was Sasa borealis. on the other hand, to the introduced species, Evergreen Trees was Juniperus chinensis. Deciduous Trees was Metasequoia glyptostroboides, and Vine was Vitis labrusca and 'others' was Phyllostachys pubescens. 7. As the fundament of the results of above the optimum selecting of woody landscape plants according to native species of trees was 29 families, 58 species. on the basis of 30 points, 28 points was 8 species Ginkgo biloba, Ulmus davidiana var. japonica, Parthenocissus tricuspidata, Elaeagnus umbellata, Fraxinus rhynchophylla, Weigela subsessilis, Koelreuteria paniculata, Lonicera japonica, 26 points was 27 species Thuja orientalis, Zelk ova serrata, Euonymus japonica etc., and 24 points was 23 species Populus tomen tiglandulosa, Juglans sinensis, Sophora japonica etc..

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Changes in the Contents of Some Metabolites and Ions and in Some Enzyme Levels in Rice Plants Grown under Water-and Salt-stressed Condition (수분장애(水分障碍) 및 염장애(鹽障碍)하에서 수도체(水稻體)중 효소수준(酵素水準) 및 유기대사산물(有機代謝産物)과 무기(無機)이온 함량의 변화)

  • Park, Ro-Dong
    • Applied Biological Chemistry
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    • v.25 no.3
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    • pp.135-141
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    • 1982
  • Two rice cultivars, Jinju and Iri 348, were used to compare the changes in the contents of some organic metabolites and ions and in some enzyme levels under water-and salt-stressed conditions. The water loss and proline accumulation under water and salt stresses were accelerated more in the salt-sensitive cultivar Iri 348 than in the salt-tolerant Jinju. The contents of crude protein, total free amino acids, proline and polyphenols increased under water-or salt-stressed rice, but that of reducing sugar increased under water stress only. The water-and salt-stresses induced the high ratio of low molecular organic solutes to crude protein in Jinju but not in Iri 348. The ratio of total free amino acids to crude protein increased under the stressed conditions was likely due to high protease activity. The contents of $Na^+$ and $Cl^-$ were higher in Iri 348 than in Jinju. Iri 348 had higher values of $Na^+/Ca^{2+}$ and monovalent/divalent of cations, but lower of $K^+/Na^+$ than Jinju Rice. The further studies should emphasize to set the correlations between these ratios and tolerance to water and salt stresses among rice cultivars.

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