• Title/Summary/Keyword: 스코리아

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여름철 스트레스, 환기로 잡아라

  • Gi, Yeong-Hun
    • KOREAN POULTRY JOURNAL
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    • v.38 no.6 s.440
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    • pp.116-119
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    • 2006
  • 문터스코리아는 2002년부터 국내에 정식으로 한국지사를 설립해 본격적으로 국내시장에 진출하였다. 그 동안 국내수입업체를 통해 문터스사의 제품을 선보였었지만 국내 축산분야 성장가능성을 판단아래 2002년부터 지사를 설립, 본격적으로 국내 축산기계분야 시장에 확장의 발판을 마련하였다. 본기자는 지난 18일 글로벌 기업 문터스사의 한국지사 문터스코리아를 방문하였다. 한국 · 일본 지사장 쟈니 싸일런드 씨와 아시아 부사장 한시 크루거 씨가 국내 방문일정에 맞춰 동사를 방문하여 인터뷰를 한 내용을 정리했다.

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A Study on Iron Compounds of Scoria in Mid Mountain Area of Jeju (제주 중산간지역 스코리아의 철 화합물에 관한 연구)

  • Choi, Won-Jun;Ko, Jeong-Dae
    • Journal of the Korean Magnetics Society
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    • v.17 no.5
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    • pp.205-209
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    • 2007
  • It have been investigated the measured results of the XRF, the X-ray diffractometry and $^{57}Fe\;M{\ddot{o}}ssbauer$ spectrum for scoria samples which are distributed throughout different areas in Mid-mountain Area of Jeju island. We consider that the scoria samples are chiefly made of silicate minerals, like $SiO_2$, others silicate minerals and iron oxides minerals. We study that it's materiel is consisted of olivine, pyroxene, ilmenite, hematite and magnetite. Iron compounds in that are $Fe^{2+}$ of olivine, pyroxene, ilmenite and $Fe^{3+}$ of hematite, magnetite et al. The major Fe fractions of the scoria samples are 51.77 wt%, so Fe fractions of the scoria samples are almost 3+ charge state with a little of the 2+ charge state.

A Study on Iron Compounds of Scoria in The Northern Area of Jeju (제주 북부지역 스코리아의 철 화합물에 관한 연구)

  • Choi, Won-Jun;Ko, Jeong-Dae
    • Journal of the Korean Magnetics Society
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    • v.18 no.5
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    • pp.168-173
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    • 2008
  • Fe compounds of scoria distributed in northern area of Jeju island are investigated using X-ray fluorescence spectroscopy, X-ray diffractometry, and $^{57}Fe$ Mossbauer spectroscopy. The samples were prepared from four parasite volcanos. These samples consist of the typical basalt comprised of $SiO_2,\;Al_2O_3$, Fe compounds, and silicate minerals. The $M{\ddot{o}}ssbauer$ spectra showed doublets for olivine, pyroxene, and ilmenite as well as sextets for hematite and magnetite. The valence state of Fe is chiefly a 3+ charge state with a little 2+ charge state. It is expected that this results will add to the body of information related to the information mechanism of Jeju island. The geochemistry for these samples is the same results to mid-mountain's samples in Jeju Island.

A Study on the Iron Compounds of Cinder Cones' Scoria in the Southern Area of Halla Mt., Jeju Island (제주도 한라산 남부 지역 분석구 스코리아의 철 화합물에 관한 연구)

  • Ko, Jeong Dae;Choi, Won Jun
    • Journal of the Korean Magnetics Society
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    • v.26 no.6
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    • pp.213-218
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    • 2016
  • This study reviewed mineral composition on Scoria samples of this area, atomic value state of oxidized steel, and magnetic property in order to look into characteristics of scoria that was distributed in southern area of mountainous areas, Halla Mt. of Jeju Island. By XRD analysis, mineral composition was confirmed, and characteristics of iron compounds existed in samples were investigated through $M{\ddot{o}}ssbauer$ spectroscope. Composing minerals could be learnt as feldspar basalt from XRD analysis because composting minerals were composed of quartz and feldspar anorite mainly, and iron compounds were made up with olivine, pyroxene, ilmenite, hematite, and magnetite. By $M{\ddot{o}}ssbauer$ spectroscope analysis on these iron compounds. it consisted of hematite and magnetite which showed hyperfine magnetic field of sextet mostly, and also doublet by olivine, pyroxene, ilmenite could be seen as appearing together. As a result of comparing with samples of Jeju western area having been announced in previous research, I.S. and Q.S. values of olivine, $Fe^{2+}$, were 122 mm/s and 3.09~3.13 mm/s respectively, and a fact could be known that $Fe^{2+}$ olivine having similar structure each other was contained, and the ratio of $Fe^{3+}/Fe_{tot.}$. was 85.90~92.82 %. From these findings, it was able to be presumed that they belonged to samples having been formed on the land at the same period of time. As a result of investigating area ratio of tetrahedron (A site) and octahedron (B site) regarding magnetite in samples, it was turn out to be 0.22~0.55 less than 2.

Functional Magnetizing Treatment of Natural Quartz and Volcanic Lava Scoria (내추럴 퀄쯔와 화산암재 스코리아의 기능성 마그네타이징 처리)

  • 소대화;소현준;배두안;김정희
    • Journal of the Speleological Society of Korea
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    • no.63
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    • pp.1-8
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    • 2004
  • The non-magnetic materials with non-conductive showing high structure dispersity were developed on the base of natural quartz and lava-scoria which was collected from Je-ju island in Korea, and treated by methane-chemical technology those were obtained novel properties of magnetization through the analyzing. Depending on the processing conditions and subsequent applications the materials produced by strong methane-chemical reaction (MCR) in alcohol solution showed concurrently magnetic, dielectric and electrical properties. The obtained magnetic-electrical powders classified by aggregate complex of their features as segnetomagnetics, containing a dielectric material as a carrying nucleus, particularly the quartz on that surface one or more layers of different compounds were synthesized having thickness up to 10~50 nm and showing magnetic, electrical and other properties. It was confirmed in magnetizing process that powders of quartz and lava-scoria produced by MCR were better oil adsorbent as of oleophilic and floating matter on water surface although their specific gravities are comparably more than 1 in quartz or less than unity, as that of water, in lava-scoira. Therefore, it will be Possible and very useful to remove low density and light gravity oil spillage in difficult recovery from sea and inland water contamination spread on water surface, by marine accident and ship sinking accident occurring frequently in recent years, by way of magnetic adsorbent conveyer system in continuous, if it could be built up the mass Production system of water-floating magnetizable oleophilic adsorbent materials with use of iow cost and good Qualify lava-scoria spread on volcano district in Je-ju island. And, there will also be urgent advent of necessity with strong possibility to develop useful applications of various magnetic functional materials include oleophilic adsorbent for removal of sea oil-contaminants and maritime pollutants, and other kinds of various utilities in industrial applications and practical uses of novel functional materials in the fields of environments and health care applications with in deep expectation.