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Petrochemical Study on the Basic rocks in the Okchon Zone (옥천지향사대내(沃川地向斜帶內)에 분포(分布)하는 염기성암류(鹽基性岩類)의 암석학적(岩石學的) 연구(硏究))

  • Kim, OK Joon;Kim, Kyu Han
    • Economic and Environmental Geology
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    • v.9 no.1
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    • pp.13-26
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    • 1976
  • The basic rocks distributed in the Okchon paleogeosynclinal zone have been previously considered as intrusive in majority, but as sedimentary parensis in few variety. The present study is to find out some clues to conclude otherwise, if any, by clarifying 1) the nature and characteristics of the rocks, 2) type of the associated sedimentary rocks if any, and 3) their occurrence in related to regional geologic structure. The finding are as follows: 1) The basic rocks are identified and classified to hornblende gabbro, amphibolite, basalt and andesite (in part metamorphosed to meta-volcanics), green schist and peridotite(which appears in separate locality from the others). 2) Associated sedimentary rocks which appear to overlie the basic rocks are known as Kunjasan and Baekwhasan formations. The two formations are probably same, but been used differently by different authers at different localities. The rocks is exclusively consisted of cherty looking siliceous quartzite and some localitis it shows very calcarious nature. The formation seems to indicate a sort of pelagic siliceous sediments although it contain some pebbles. 3) The basic rock suites are always underlain by the same continuous, great thrust, which separates the Okchon paleogeosyncline zone from the neogeosynclinal zone in the area studied. The comparison of Okchon basic rocks suite to the ophiolite suites in other parts of the world indicates some similarity with which the writers suggested the probalility of Okchon basic rocks being ophiolites that occur along ancient geosuture line now represented by the great thrust.

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Development of an Automatic Sweet Potato Sorting System Using Image Processing (영상처리를 이용한 고구마 자동 선별시스템 개발)

  • Yang G. M.;Choi K. H.;Cho N. H.;Park J. R.
    • Journal of Biosystems Engineering
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    • v.30 no.3 s.110
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    • pp.172-178
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    • 2005
  • Grading and sorting an indeterminate form of agricultural products such as sweet potatoes and potatoes are a labor intensive job because its shape and size are various and complicate. It costs a great deal to sort sweet potato in an indeterminate forms. There is a great need for an automatic grader fur the potatoes. Machine vision is the promising solution for this purpose. The optical indices for qualifying weight and appearance quality such as shape, color, defects, etc. were obtained and an on-line sorting system was developed. The results are summarized as follows. Sorting system combined with an on-line inspection device was composed of 5 sections, human inspection, feeding, illumination chamber, image processing & control, and grading & discharging. The algorithms to compute geometrical parameters related to the external guality were developed and implemented for sorting the deformed sweet potatoes. Grading accuracy by image processing was $96.4\%$ and the processing capacity was 10,800 pieces per hour.

Effects of Ginseng Saponin on the Metabolites and Enzymes of Normal and Alloxan-intoxicated Rats (인삼사포닌이 정상및 Alloxan투여 흰쥐에서 수종의 대사물질및 효소활성에 미치는 영향)

  • Lee, Dong-Gwon;Im, Chang-Jin;Hong, Sun-Geun
    • Journal of Ginseng Research
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    • v.5 no.1
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    • pp.56-64
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    • 1981
  • In order to evaluate the mode of action of ginseng saponin. metabolic changes in the plasma of normal and aloxan-intoxicated rats were compared Normal groups were administered only ginseng saponin 0, 5, 50mg/kg for 16 days, but alloxan-intoxicated groups were administered alloxan 25mg/kg for 3 days in addition to ginseng saponin. (1) No significant change in the concentration of glucose, cholesterol, and triglyceride (TG) was observed in normal rats but great inhibitory effect, except elevation of TG, was observed in alloxan-intoxicated rats. However, blood urea nitrogen was elevated in both normal and alloxan- intoxicated rats by administration of ginseng saponin 50mg/kg, and it was considered to be due to the impaired kidney function caused by overdose toxicity. (2) In normal rats, COT and ALP actIn,its were not changed by administration of ginseng saponin but GPT activity was decreased significantly. In alloxan-intoxicated rats, ginseng saponin exerted inhibitory action on the elevation of COT, CPT and ALP activity. But administration of ginseng saponin Smghg was much more effective than administration of 50mg/kg. (3) There fore, we concluded that ginseng saponin has the adaptogenic activity showing little effect on normal metabolism but great preventive action on alloxan-intoxicated rats.

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Vulnerability assessment of upland public groundwater wells against climate change

  • Shin, Hyung Jin;Lee, Jae Young;Jo, Sung Mun;Cha, Sang Sun;Park, Chan Gi
    • Korean Journal of Agricultural Science
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    • v.47 no.3
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    • pp.577-596
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    • 2020
  • Drought is a natural disaster that directly affects agriculture, which has a great impact on the global agricultural production system and yield. The lack of water storage in most parts of the country due to the lack of precipitation has caused a great increase in social interest in drought due to the dryness of rice fields and crops. As the drought period increases and the drought intensity becomes stronger, it is believed that drought damage to crops will continue; thus, it is necessary to understand the vulnerability to irrigation performance and the ability of irrigation facilities. Therefore, this study conducted a vulnerability assessment of irrigation facilities (public Groundwater well) in cities across the country. The survey was conducted using statistical data from 2007 to 2016, and the vulnerability score was calculated according to the vulnerability evaluation procedure for drought in the irrigation facilities (public groundwater wells). Among 157 regions, 136 areas were very vulnerable; 14 areas were vulnerable; 3 areas were normal; 4 areas were good, and 0 areas were excellent. The vulnerability assessment can be used as basic data for the development or maintenance of field irrigation facilities in the future by understanding the vulnerability of irrigation facilities.

The Senning Operation for Transition of the Great Arteries -a 7-year prospective study - (대혈관전위증의 Senning 수술요법)

  • Kim, Gi-Bong;No, Jun-Ryang
    • Journal of Chest Surgery
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    • v.22 no.5
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    • pp.753-759
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    • 1989
  • Recently, the arterial switch operation has received more interest and increased application for many patients with TGA [Transposition of the Great Arteries]. Not all patients, however, are suitable candidates for this approach, and its success will be measured against the Senning procedure. From June 1982 through June 1989, 48 consecutive patients underwent correction of TGA by a modification of the Senning procedure in our hospital. 34 were males and 14 females, with ages ranging from 3 months to 99 months [mean age 14 months]. The patients were divided into two groups, group I [TGA with intact ventricular septum or without significant pulmonary hypertension] and group II [TGA with significant pulmonary hypertension]. The hospital mortality was 9.5 % in group I and 55.6 % in group lI. 31 patients were discharged from the hospital after a Senning operation and have been followed a mean of 31.2 months. There were 5 late deaths, 3 in group I and 2 in group II. All patients were followed up with EKG, echocardiogram, and in several cases, Holter monitor and cardiac catheterization and angiography were also performed. There have been arrhythmias in 7, superior vena caval obstruction in 5, pulmonary venous obstruction in 2 and tricuspid insufficiency and/or right ventricular dysfunction in 16 patients. The Senning operation for Simple TGA can be performed with a low operative mortality and morbidity, but tricuspid insufficiency and/or depressed right ventricular function can be a problem with prolonged follow up.

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Antimicrobial Activity in 2 Angelica Species Extracts (당귀속 2종 식물의 항균활성)

  • 윤경원;최성규
    • Korean Journal of Plant Resources
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    • v.17 no.3
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    • pp.278-282
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    • 2004
  • We investigated antimicrobial activity of methanol extract from Angelica gigas and A. acutiloba against three gram-positive bacteria(Bacilius cereus, B. subtilis, and Staphylococcus aureus), two gram-negative bacteria (Escherichia coli and Pseudomonas fluorescens), and one yeast (Saccharomyces cerevisiae). The antimicrobial activity was shown in only ethyl acetate fraction of shoot and root extracts from A. gigas. The activity of the fraction of shoot extract was remarkably potent against S. aureus. The ethyl acetate fraction of root extract showed great antimicrobial activity against B. subtilis and E. coli. The n-hexane fraction of shoot extract and the water fraction of root extract from A. acutiloba were not showed antimicrobial activity, in contrast, the ether fraction of shoot and root extracts showed great antimicrobial activity. S. cerevisiae was not inhibited by any fractions and species.

Synthetic Conception of Ten Heavenly Stems and Twelve Earthly Branches According to Mathematical Principle (수리(數理)를 통해 살펴본 십간(十干)과 십이지(十二支)의 종합적 개념)

  • Han, Gook;Yun, Chang-Yeol
    • Journal of Korean Medical classics
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    • v.33 no.1
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    • pp.29-50
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    • 2020
  • Objectives : Objectiveness and accuracy of numbers could allow for a new way of understanding the principle of Ten Heavenly Stems(THS) and Twelve Earthly Branches(TEB) when applied. Methods : The order of the THS and TEB, the Five phases of direction and change, conversion of other, conversion of self of the Stems and Branches were examined through numbers. Results & Conclusions : The numerical combination of the Stems and Branches depends on the identification of the Three Points. Conversion of self of the Heavenly Stems are as follows: for 甲 3+5=8, for 乙 8+4=12, for 丙 7+1=8, for 丁 2+8=10, for 戊 5+7=12, for 己 10+10=20, for 庚 9+9=18, for 辛 4+6=10, for 壬 1+3=4, for 癸 6+2=8. Conversion of self of the Earthly Branches are as follows: for 子 1+2=3, for 丑 5+5=10, for 寅 3+2=5, for 卯 8+4=12, for 辰 5+1=6, for 巳 2+8=10, for 午 7+7=14, for 未 10+10=20, for 申 9+7=16, for 酉 4+9=13, for 戌 5+6=11, for 亥 6+3=9. Here the Stems and Branches could be understood intensively. Among the Stems and Branches, the Great Points are 壬, 癸, 戌, 亥, 子, Emperor Points are 甲, 戊, 丑, 午, and Empty Points are 己, 未.

A Study on the Courses of Lower Limb Region of Stomach Meridian -Focused on Categorized Collection of Literatures on Chinese Meridians and Collaterals- (족양명위경 하지부 유주에 관한 고찰 - 『중국침구경락통감』을 중심으로-)

  • Park, Sang Kyun;Ahn, Sung;Lee, Kwang Ho
    • Korean Journal of Acupuncture
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    • v.35 no.3
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    • pp.117-122
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    • 2018
  • Objectives : Most meridians have each well point located at the distal end of fingers or toes, congruous with their meridian courses. Exceptively, ST45(Yeotae), stomach meridian(ST)'s final point, is located at the lateral side of the tip of the second toe, while the tip of the second toe was not mentioned in the course of ST. So, we studied the course of lower limb region of ST. Methods : Courses of ST in Categorized Collection of Literatures on Chinese Meridians and Collaterals(CCM) was examined. The literatures included in CCM was selected as study subjects to be studied if the meridian route was different from "Youngchu" or more detailed notes were attached. There are 3 branches in lower limb region of ST, we analyzed theories of scholars of all time about the 3 branches of ST. Results and Conclusions : Branch 1 descends along the lateral margin of the fibula to the dorsum of foot, entering into the medial side of the middle toe. Branch 2 leaves ST36 separately, terminating at the lateral side of the middle toe. Branch 3 leaves ST42 and descends to the end of the great toe. The medial side of the middle toe equate to the lateral side of the second toe, and it is connected to ST45. So branch 1 is the main stream of ST. Branch 3 drives to the great toe passing between first and second toe, it goes medial side of LR2.

An Experimental Study on NOx Reduction in Exhaust Gas from Agricultural Diesel Engine with Plasma and Catalyst (플라즈마와 촉매를 이용한 농용 디젤기관 배기가스 중의 NOx 저감에 관한 실험적 연구)

  • 이승규;조기현;황의현
    • Journal of Biosystems Engineering
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    • v.24 no.6
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    • pp.465-472
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    • 1999
  • To remove nitrogen oxides(NOx) in exhaust gas of diesel engine, three-way catalytic process with plasma discharger has great possibilities. Characteristics of NOx removal depends on NO conversion to NO$_2$and/or HNO$_3$due to high activation energies for NO oxidation and reduction. NOx removal efficiency by using three-way catalytic with plasma discharger indicated about 50% at 40watt power consumption condition.

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An Experimental Study on Effect of Plasma for Exhaust Emissions in Small High-Speed Diesel Engine (소형 고속 디젤엔진의 배기 배출물에 미치는 플르즈마의 영향에 관한 실험적 연구)

  • 백태실
    • Journal of Advanced Marine Engineering and Technology
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    • v.23 no.6
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    • pp.755-760
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    • 1999
  • To remove nitrogen oxides(NOx) in exhaust gas of diesel engine three-way catalytic process with plasma discharger has great possibilities. Characteristics of NOx removal depends on NO conver-sion to $NO_2$ and /or $HNO_3$ due to high activation energies for NO oxidation and reduction, NOx removal efficiency by using three-way catalytic with plasma discharger indicated about 50% at 40watt power consumption condition.

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