Results 21 to 30 of about 14,278 (336)
Yankuang ceshi, 2018 Research on different types of brown diamonds under high temperature and high pressure and their structural characteristics is one of the most difficult and important issues in diamond research. Previous studies on hydrogen-rich diamond mainly focused on
SONG Zhong-hua +7 more
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Research on Laboratory Testing Features of Chemical Vapor Deposition in Overgrowth Diamonds
Yankuang ceshi, 2019 BACKGROUND Overgrowth diamond refers to the product of thick CVD synthetic diamond layer grown on a natural diamond with the whole appearance. Since overgrown diamonds contain information on the nitrogen impurities of natural diamonds, traditional ...
TANG Shi +12 more
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O reprezentare a lui Marsyas pe o gemă de la Romula
Arheologia Moldovei, 2022 This small article is focused on the representation of Marsyas, on a gemstone from Romula. The piece is unpublished and the representation of Marsyas like a young boy is quite unusual. It is the only known representation of Marsyas in the gliptic of the
Gabriele Filip
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Materials, 2022 Imitation gemstone glass has numerous characteristics, including low cost, rich colour, stable colouring, and the formation of colour-changing effects that can meet the jewellery market demand for beautiful gemstones of middle and low grades.
Siqi Zhang +3 more
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Tumor growth inhibition-overall survival modeling in non-small cell lung cancer: A case study from GEMSTONE-302. [PDF]
CPT Pharmacometrics Syst Pharmacol, 2023 Overall survival is vital for approving new anticancer drugs but is often impractical for early‐phase studies. The tumor growth inhibition‐overall survival (TGI‐OS) model could bridge the gap between early‐ and late‐stage development. This study aimed to
Sheng Y +4 more
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An Object-Oriented Language-Database Integration Model: The Composition-Filters Approach [PDF]
, 1991 This paper introduces a new model, based on so-called object-composition filters, that uniformly integrates database-like features into an object-oriented language. The focus is on providing persistent dynamic data structures, data sharing, transactions,
Aksit, Mehmet +3 more
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A Case Study on Distribution of Gemstone in Bela Ophiolite, District Khuzdar, Balochistan
International Journal of Economic and Environment Geology, 2022 Bela Ophiolite and suture zone host several types of gemstones in the underlain and overlain rocks such as garnet (demantoid and almandine), quartz, brucite, malachite, chrysocolla, azurite, calcite, natrolite, green chert, jasper, serpentine, agate ...
Salman Khan +5 more
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Using Poetry to Teach about Minerals in Earth Science Class [PDF]
, 2004 This article describes how a high school earth science teacher and a college education professor team-taught a lesson to ninth graders on using poetry to learn about minerals.
Audrey Rule +2 more
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A research on traditional ring making art of Qom [PDF]
Dānishhā-yi būmī-i Īrān, 2017 Metalworking art is one of the native arts of Iran that traditional artists of this territory have been working on it in different types and usages since the ancient times.
amirhosein chitsazian, tahereh vafaee
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Yankuang ceshi, 2019 BACKGROUND There are water molecules and hydrous mineral inclusions in natural ruby and sapphire. The hydrous minerals disappear easily after heat treatment, which causes the physical and chemical properties of ruby and sapphire to change.
NING Pei-ying +6 more
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