• Title/Summary/Keyword: Mica

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포장강좌 -EXTRUSION COATING을 위한 수용성 PRIMERS

  • SINGER FRED M
    • The monthly packaging world
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    • s.81
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    • pp.152-160
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    • 2000
  • CHEMICAL PRIMER와 ADHESION PROMOTOR라는 말은 자주 같은 뜻으로 서로 교환되어서 사용되어 왔다. 접착력의 촉진은 분명히 PRIMER로서 얻어지는 두드러진 특징 중에 하나이지만, PRIMER는 내화학성을 더하여 주는 추가적인 가치를 부여해준다. 이 발표문에서는 PRIMER의 TYPE와 접착에 영향을 주는 요인을 다루고 있다. 접착력과 내화학성은 코로나처리, 적용 COATING량, 적용방법 및 건조에 영향을 받는다. 압출수지온도,

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Fluid Inclusion Study of Sangdong Tungsten Deposits (상동(上東) 중석광상(重石鑛床)의 유체포유물(流體包有物) 연구(硏究))

  • Mun, Kun Joo
    • Economic and Environmental Geology
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    • v.12 no.4
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    • pp.197-206
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    • 1979
  • Sangdong scheelite deposit is confirmed to have been formed by replacement of limestone beds by metasomatic mineralization. Mineralogical zonal distribution and filling temperatures are related with order of its formation and tungsten mineralization. The first formed garnet-pyroxene zone, left in the margins of the ore body, shows the highest filling temperature of fluid inclusions in pyroxene, averaging $420^{\circ}C$. The central part of the ore body, mainly composed of quartz-mica-scheelite, shows higher fi11ing temperatures of fluid inclusions in quartz, than hornblende-quartz-scheelite zone surrounding the quartz-mica-scheelite zone, averaging $240^{\circ}C$. The distribution of highter filling temperatures above average temperature is applicable to the richest part of scheelite distribution. Generally scheelite shows higher filling temperature by about 20 to $100^{\circ}C$ than quartz in a given sample. The crystallization temperature of the main phase of scheelite deposition is $311^{\circ}C$ at the pressure of 230 to 500 bars at Sangdong area. Gas-rich inclusions in the pyroxene are homogenized into either gas or liquid phase or into both phases in a given crystal of the pyroxene, which suggests boiling at the formation of skarn.

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Study on the production of the ceramic by the mineral-Oriental medicine and the property of the clean active water depositting on the ceramic stone (광물성 한약재 세라믹 조성 및 세라믹 침적 청정활성수 특성에 대한 연구)

  • Kim Gyeong Cheol
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.18 no.4
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    • pp.1159-1162
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    • 2004
  • We studied on the production of the ceramic by the mineral-Oriental medicine and the property of the clean active water depositting on the ceramic stone. The results are as follows: We properly mixed of maifanshi, mica, ochre, and added to a small amount cinnabar, and therefore formed the ceramic stone. By the plasticity process and the irradiating magnetic force recovered the disappeared a part of constitutent elements. The recovered effects were become higher the freshness, maintenance, deodoriztion, clean water. As well as having the ability on capture of the notoxious heavy metal on human. The ceramic powder were mixed proper dose maifanshi, mica. And the powder had ionization, absorption, adhesion by the plasticity process and magnetic force. The clean active water of depositting on the ceramic stone during 24hours were observed significant the content of micro element, dissolved oxygen, abstraction on Herbs.

Characterization of Clay Minerals in Ranch Pasture

  • Kang, Sangjae;Jang, Jeonghun;Park, Nayun;Park, Junhong;Choi, Seyeong;Park, Man;Lee, Changhee;Lee, Donghoon;Zhang, Yongseon
    • Korean Journal of Soil Science and Fertilizer
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    • v.49 no.1
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    • pp.53-59
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    • 2016
  • This study deals with the distribution of the clay minerals separated from clay fractions of ranch pastures in Korea and their chemical and mineralogical properties. Crystalline phases of the clay minerals were identified by powder X-ray diffraction (XRD) pattern and FT-IR spectra, and their relative chemical compositions were also analyzed by X-ray flourescence spectrometry (XRF). Primary minerals consisted mainly of quartz and mica and chlorite and kaolinite along with a trace of swelling micas were identified as secondary clay minerals. However, the relative content of these clay minerals was different with the locations, which led to significant effects on physical and chemical properties of soils like inorganic elemental composition. In particular, $SiO_2$ content was higher in Gochang ranch pasture than in other ranch pasture. Infrared (IR) spectra did not indicate any significant differences in organic functional groups among the locations. This study clearly showed that ranch pastures had different relative content of clay minerals and chemical properties depending on the location and consequently that those properties are worthy to be taken into account for soil amendment.

Condition of the Sangdong Tungsten Skarn Formation (상동 중석 스카른의 생성조건에 관한 연구)

  • Moon, Kun Joo
    • Economic and Environmental Geology
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    • v.17 no.4
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    • pp.259-272
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    • 1984
  • Fluid inclusion and stable isotope studies on the Sangdong tungsten skarn have led to a conclusion that the mineralizing fluids might be derived from a magma, which was inferred within 1km below the present Sangdong ore deposit. Mineral assemblages of the skarns appear to have formed under the equilibrium conditions as the fluids flow outward from a central fluid column, in which the quatz-mica occurs dominantly. A characteristic skarn showing mineralogical zonation by repeated over-prints. The quartz-mica zone at the central part of the Sangdong skarns shows the final stage of protracted fluid evolution. Thermodynamic conclusion based on simplified chemical compositions of major components may express quantitatively the conditions of the skarn formation by using diagrams.

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FAULT DETECTION, MONITORING AND DIAGNOSIS OF SEQUENCING BATCH REACTOR FOR INTEGRATED WASTEWATER TREATMENT MANAGEMENT SYSTEM

  • Yoo, Chang-Kyoo;Vanrolleghem, Peter A.;Lee, In-Beum
    • Environmental Engineering Research
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    • v.11 no.2
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    • pp.63-76
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    • 2006
  • Multivariate analysis and batch monitoring on a pilot-scale sequencing batch reactor (SBR) are described for integrated wastewater treatment management system, where a batchwise multiway independent component analysis method (MICA) are used to extract meaningful hidden information from non-Gaussian wastewater treatment data. Three-way batch data of SBR are unfolded batch-wisely, and then a non-Gaussian multivariate monitoring method is used to capture the non-Gaussian characteristics of normal batches in biological wastewater treatment plant. It is successfully applied to an 80L SBR for biological wastewater treatment, which is characterized by a variety of error sources with non-Gaussian characteristics. The batchwise multivariate monitoring results of a pilot-scale SBR for integrated wastewater treatment management system showed more powerful monitoring performance on a WWTP application than the conventional method since it can extract non-Gaussian source signals which are independent and cross-correlation of variables.