• Title/Summary/Keyword: aquamarine

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Gemological Characteristics of Aquamarine from the Gilgit-Baltistan of Northern Areas, Pakistan (파키스탄 북부 Gilgit-Baltistan 지역에서 산출된 아쿠아머린의 특성 연구)

  • Kim, Sung Jae;Shin, Dong Wook;Shon, Shoo Hack;Jang, Yun Deuk
    • Journal of the Mineralogical Society of Korea
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    • v.28 no.1
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    • pp.51-60
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    • 2015
  • We applied gemological analytical approaches on Aquamarine from the Gilgit-Baltistan of Northern Areas, Pakistan. The standard gemological testing indicates that they are consistent with general characteristics of natural aquamarines. We have identified the inclusions of Tantalite-Mn by Raman analysis. It indicates that they occurs in association with the veins of Be-rich coarse pegmatite. And the results of chemical analyses, infrared absorption spectroscopy and Raman spectroscopy indicate that $H_2O$ molecules in channel mostly exist in Type-I and a little Type-II with low alkali ion. The comparison of relative peak intensity of FT-IR analysis can be used for prediction of $Na_2O$ content within not only emerald but also aquamarine.

Mineralogical and Geochemical Characteristics of the Gemstone-bearing Pegmatite of Mogok Metamorphic Belt, Myanmar (미얀마 모곡변성대 함보석 페그마타이트의 광물학적 및 지화학적 특징)

  • Heo, Chul-Ho;Oh, Il-Hwan;Cho, Seong-Jun
    • Korean Journal of Mineralogy and Petrology
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    • v.33 no.2
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    • pp.129-141
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    • 2020
  • The Mogok metamorphic belt is a highland area mainly consisting of Archean crystalline rocks, where many ruby mines were distributed in the past, and jewelry has been identified in its alluvium as placer deposit. Minerals that are usually identified with ruby include spinel, garnet, and rubellite. The conglomerates that form the alluvium in which jewelry is found mainly consist of gneiss and clastic pegmatites. In Singu, Mogok, and Momeik areas, a number of pegmatites containing jewelry are distributed in the intrusions of Mogok metamorphic rocks, diorites, and granites. In Singu pegmatites, rubellite, goshenite, and blue and violet apatite occur as gems. In Momeik pegmatites, mushroom-type rubellite, petalite, hambergite, pollucite, and aquamarine can be found. In Mogok pegmatites, topaz, aquamarine, goshenite, and herderite occur are present.

Still Aquamarine: China Factor and the 2020 Election Revisited

  • Kai-Ping Huang
    • Asian Journal for Public Opinion Research
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    • v.11 no.2
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    • pp.77-106
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    • 2023
  • The DPP's victory over the KMT in Taiwan's 2020 elections has been interpreted as a triumph for anti-China sentiment. However, the rise of political outsiders and their influence on voting behavior in this election were overlooked and underestimated. In this article, we examined different sources of data and found that supporters of these political outsiders mentioned sovereignty and cross-Strait issues less than the incumbent Tsai Ing-wen. However, when faced with the choice between Tsai and challenger Han Kuo-yu, voters who were concerned about governance chose Tsai, contributing to her winning a record number of votes. This article suggests that economic and governance issues had a considerable role in the election's result and will probably be the main focus of the 2024 presidential election. With the potential for a conflict in the Taiwan Strait increasing, anti-China sentiment is unlikely to be the deciding factor this time around.

Green Panel Lighting Fixture of LED Lamp for Aquaculture and Marine Aquanautics (수중 양식과 탐사를 위한 LED 녹색평판조명램프)

  • Soh, Hyun-Jun;Kang, Sang-Taek;Kim, Jae-Gyun;Soh, Dea-Wha
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2010.10a
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    • pp.730-733
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    • 2010
  • The Green Lamp Fixture (GLF) of LED prepared with thin panel structure was investigated for illumination of street lamps and other lighting system uses, which was also very useful to aquaculture and aquafarm lighting uses, or fish luring lights and marine aquanautics of aquamarinautics (aquamarine+aquanautics) uses, etc. In the case of fish luring lights, it was verified that the fish luring of Green Lamp Fixture of LED was very effective for phototaxis movement and ecological community promotion to the micro-living things of organisms and the small fries and fishes, like as 'crowding together'. For the aquaculture lightings, it was also very excellent in waterproof and heat-sink properties, photosynthetic growing of algae and micro-organisms, water-weeds and seaweeds living underwater.

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A Study of Bulk Modulus of Beryl Using Water as a Pressure-Transmitting Medium (물을 압력 매개체로 이용한 녹주석의 체적탄성률 연구)

  • Hwang, Gil Chan;Kim, Hyunho;Lee, Yongjae
    • Journal of the Mineralogical Society of Korea
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    • v.30 no.3
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    • pp.83-91
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    • 2017
  • In-situ high-pressure and ex-situ high temperature-pressure experiments of natural beryl ($Be_3Al_2Si_6O_{18}$, P6/mcc) from two different localities (beryl-A and beryl-B) were studied using pure water as pressure transmitting medium. Compared to the previous study using a mixture of methanol:ethanol medium in 4 : 1 by volume, pressure- and temperature-induced chemical and structural changes under water medium are expected to be different. The derived bulk moduli are 111(7) GPa, $K{_0}^{\prime}=73(7)$; 110(9) GPa, $K{_0}^{\prime}=65(8)$ for beryl-A and beryl-B, respectively. We observe densifications in volume compression, which appear to be attributed to the phase transitions of water to ICE VI and ICE VII around 1.0 GPa and 2.5 GPa, respectively.

An analysis of the production conditions for small-sized women's jacket products - Focusing on young contemporary brands for spring/summer 2021 - (여성복 스몰사이즈 재킷 제품 생산실태- 2021년 S/S 영컨템포러리 브랜드를 중심으로 -)

  • Lee, Yujin;Jang, Jeongah
    • The Research Journal of the Costume Culture
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    • v.29 no.6
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    • pp.849-864
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    • 2021
  • This study analyzed product conditions in terms of "size system," "clothing construction depending on fit," "details," "colors," and "prices," with an emphasis on young contemporary brands for spring/summer 2021, in order to provide basic data for the development of small-sized women's jackets. Out of 96 domestic and foreign brands, the study analyzed 254 small-sized jacket products from 23 brands that produce size-XS jackets. First, when examining the sizes for women's jackets, we found that 8 out of the 23 brands offer a size-XXS option. After conducting tree analysis to analyze the factors affecting the production of size-XXS, the study found significant results in the areas of "distinction between domestic and foreign brands" and "product price." Second, after categorizing small-sized women's jackets into 3 categories-fit-slim, basic, and straight-the study analyzed clothing construction elements depending on fit. This seasons mainly feature straight-fit's hip-line length jacket, a 4-panel pattern, and a panel without a waist dart. Third, the study, through the analysis of the colors of small-sized women's jackets, found a higher frequency of colors in the order of black (23.0%), white (13.3%), and beige tones (10.1%), with additional colors such as sky blue, rose pink, and aquamarine in production, which exhibit the senses of the seasons. Price analysis revealed that small-sized jackets constituted a price range at the mid-to-low end, as in ₩50,000-100,000 (30.3%), ₩100,000-150,000 (19.3%), and ₩150,000-200,000 (11.8%).