• Title/Summary/Keyword: Russia Korean

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Removal of radioactive methyliodide from the gas stream with a composite sorbent based on polyurethane foam

  • Obruchikov, Alexander V.;Magomedbekov, Eldar P.;Merkushkin, Aleksei O.
    • Nuclear Engineering and Technology
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    • v.52 no.5
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    • pp.1093-1097
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    • 2020
  • A composite iodine sorbent was obtained in the form of porous polymer matrix with activated carbon particles impregnated with triethylenediamine deposited on its surface. A comparative assessment of the radioactive methyliodide capturing efficiency by the composite sorbent and a sample of industrial charcoal sorbent was conducted. It was shown that under the selected testing conditions, the hydraulic resistance of the composite sorbent is lower, and the sorption capacity is higher than that of the industrial charcoal sorbent. A method for comparing the effectiveness of iodine sorbents, based on the calculation of the ratio of the sorption capacity index to the minimum capacity index, needed for the required purification degree was proposed.

Selection of a carrying agent for obtaining radioactive methyliodide vapors under dynamic conditions

  • Obruchikov, Alexander V.;Merkushkin, Aleksei O.;Magomedbekov, Eldar P.;Anurova, Olga M.;Vanina, Elena A.
    • Nuclear Engineering and Technology
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    • v.53 no.8
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    • pp.2761-2766
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    • 2021
  • A method for preparing "reagent" for radioactive methyliodide vapors production using an isotopic exchange reaction has been developed. Based on the obtained data of the isotopic exchange efficiency and hydraulic resistance, white fused alumina (700-840 ㎛) was selected as the carrying agent material for "reagent" production. The radioiodine isotopic exchange dependences on such parameters as temperature, gas flow velocity, and the methyliodide concentration in it were determined. Optimal conditions have been selected to achieve 85% of the isotopic exchange rate in 1 h of the experiment. The obtained data allowed to develop an approach to the test of iodine filters for nuclear power plants and to determine their efficiency.

Analysis and Aspects of Space Warfare in the Russia-Ukraine War (Russian Invasion of Ukraine) and Considerations for Space Technology Development (러시아-우크라이나 전쟁(러시아의 우크라이나 침공)의 우주전 분석 및 양상 그리고 우주기술 개발시 고려사항)

  • Choi, Seonghwan
    • Journal of Space Technology and Applications
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    • v.2 no.2
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    • pp.169-186
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    • 2022
  • In this article, Russia's space threat assessment and space warfare in the Russia-Ukraine war (Russian invasion of Ukraine) were analyzed and summarized. Considering the probability that commercial satellites will also be potential targets of space warfare, it is suggested that not only military satellites but also commercial satellites develop and apply space technology that can be applied equally to space threats when developing space technology. Necessary space technologies is listed.

RUSSIA-NORTH KOREA-SOUTH KOREA: TOWARDS COOPERATION IN THE FIELD OF TRANS-KOREAN RAILWAY PROJECT

  • Sivokon, Vyacheslav V.
    • Proceedings of the KSR Conference
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    • 2002.05a
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    • pp.153-157
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    • 2002
  • The improvement of the situation on the Korean Peninsula, following the June 2000 Summit, has opened up the possibility of reconstructing the railway between the North and the South. The interconnection of the railway systems would allow cargo transportation from the south of the Korean Peninsula to Russia, China and Europe. This could open up a faster and more economical cargo transportation route than the all-water route.(omitted)

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Analysis on Current Printing Industry in Russia (러시아 인쇄 산업 현황 분석 연구)

  • 김병현;신광철
    • Journal of the Korean Graphic Arts Communication Society
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    • v.20 no.1
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    • pp.1-15
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    • 2002
  • The objective of this study was carried out to investigate the study of printing presses and material industry for foreign countries market development(The point of Russia market) by examine the status of printing industry in domestic and russian. The results obtained from this study were the development and insurance of technical in printing industry market seemed to have secure a technical area in 21th century owing to have a exercise influence over about itself and material industry area.

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A comparative study on the area of polygon in mathematics textbooks of Korea and Russia (한국과 러시아의 수학교과서에서 '다각형의 넓이' 영역의 내용 분석)

  • Han, In-Ki
    • Education of Primary School Mathematics
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    • v.9 no.1 s.17
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    • pp.1-9
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    • 2005
  • This study is to compare contents of mathematics textbooks of Korea and Russia laying stress on the area of polygon. We analyzed and compared descriptions of the concept 'area of polygon' and varification on formula of area of polygon in Korean and Russian mathematics textbooks.

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Family Value Orientations of Korean Women Abroad in America, China, and Russia$\codt$Central Asia (재외한인여성의 가족가치관 - 미국, 중국, 러시아$\codt$중앙아시아 지역 한인여성을 중심으로 -)

  • Kim Kyeong Shin;Lee Seon Mi
    • Journal of the Korean Home Economics Association
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    • v.43 no.4 s.206
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    • pp.173-185
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    • 2005
  • The purposes of this study were to determine the general trends of the family value orientations FVO of overseas Korean women, to investigate differences in related variables, and to examine the relationships between FVO and the related variables. The subjects were 1,413 Korean women over 20 years living abroad in America (363 women), China (555), and Russia Central Asia (495 women). The subjects completed a questionnaire on FVO. Data were analyzed using SPSS. The major findings were as follows: 1. Korean-American women's FVO were modernistic, Korean chinese women's were traditional, and Korean women in Russia Central Asia showed neither traditional nor modem FVO. 2. The overseas Korean women's values were different from the value's dimension. 'Filial piety' showed very traditional value orientations, but 'preference of son , and 'mate selection 'showed modem FVO. The dimensions of FVO were different according to the living region. 3. The FVO values were different according to age, and period of education. Korean-American women's FVO were positively related to age, health condition, and the cognition of being Korean. Korean-Chinese women's FVO were related to age, living condition, marital and parent-child relationship, self-respect, and life satisfaction. Russia Central Asia women's FVO were correlated with age, period of education, living condition, health condition, the cognition of being Korean, marital and parent-child relationship, self-respect, and depression.

Precursor Discharge Mechanism under EHV in $SF_6$ Gas (초고압 $SF_6$가스중의 선구방전기구)

  • Lee, H.H.;Borin, V.N.;Varivodov, V.N.
    • Proceedings of the KIEE Conference
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    • 1996.07c
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    • pp.1807-1809
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    • 1996
  • The axial discharge at switching operations of EHV $SF_6$ disconnector can lead to the breakdown to the enclosure. Precursor in periphery zone leads to formation of leader over some time delay. Injected charge value depends on electric field and gap geometry. The calculation method for parameters of $SF_6$ insulation for DS in EHV-GIS is suggested by using the new criterion of leader inception in connection with periphery field nearby the boundary of streamer zone.

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A method for properties evaluation of activated charcoal sorbents in iodine capture under dynamic conditions

  • Magomedbekov, Eldar P.;Obruchikov, Alexander V.
    • Nuclear Engineering and Technology
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    • v.51 no.2
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    • pp.641-645
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    • 2019
  • Experimental equipment for studying the sorption properties of iodine sorbents using radioactive methyliodide has been developed. The sorption capacity index ${\alpha}$ is proposed as a criterion parameter for assessing the quality of impregnated activated charcoals. It was found that this parameter does not depend on the dynamic conditions during the sorbent test. It was shown that values of the sorption capacity index allow to recommend iodine sorbents for industrial gas cleaning processes.

A Study on the Hangeul Information Resources Produced by Korean and Those Contents in Russia: 1900-1937 (러시아에서의 고려인이 생산한 한글정보자원에 관한 연구 : 1900-1937)

  • Kim Jeong-Hyen;Chang Woo-Kwon;Kim Hong-Gil
    • Journal of Korean Library and Information Science Society
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    • v.37 no.3
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    • pp.357-379
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    • 2006
  • The goal of this study is to investigate and analyse the formative process of the Korean information resources, Korean society, and bibliography and those contents with reference to Korean in Russia. The Research proper time is 1900-1937. Documents analysis, and direct observation and interviews were used as research methods. This paper consists of as follows' developing and taking form Korean society, information resources, and Diaspora, and the form of publication and subject, collection, the period of Korean information resources and those contents, and a conclusion and suggestion.

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