Results 31 to 40 of about 1,971 (197)

Application of Surface Contact Angle and Surface Tension Measurements in the Identification of Gem Materials

open access: yesYankuang ceshi, 2014
Surface tension is one of the important physical and chemical parameters of the solid surface, which is closely related to temperature and properties of the phases between the boundaries.
BAO Xue   +6 more
doaj   +2 more sources

ANALISIS FENOMENA SOSIAL BATU AKIK (STUDI PADA MASYARAKAT (PENJUAL-PEMBELI) DI PUSAT PENJUALAN BATU AKIK PALEMBANG)

open access: yesJurnal Ilmu Agama: Mengkaji Doktrin, Pemikiran, dan Fenomena Agama, 2016
This research aims to analyse the meaning of gemstones and their impact to the society. Thiis research uses qualitative approaceh with Miles and Huberman (1992) point of view on the meaning of symbols.
Middya Boty
doaj   +1 more source

Non-Invasive Analyses of Italian “Ostrogothic” Jewellery: The Desana Treasure

open access: yesHeritage, 2023
The Desana treasure is a remarkable assemblage of items made of gold, silver, gemstones and glasses found in north-western Italy. Most scholars agree on the fact that the core of the treasure might have belonged to a single deposit resulted from a long ...
Maurizio Aceto   +7 more
doaj   +1 more source

Les difficultés de la filière brésilienne face à la nouvelle organisation mondiale du négoce des pierres de couleur

open access: yesConfins, 2012
The colored gemstones commoditychains, as most of natural resources exploited, have long consisted as hierarchical trades dominated by the main Western powers.
Aurélien Reys
doaj   +1 more source

Supply Chains Management Batu Mulia Khas Nusantara di Kotamadya Salatiga

open access: yesJurnal Manajemen Teori dan Terapan, 2017
Gemstones typical of the Nusantara in the Salatiga get a very large market and has many consumers militants. Though there is no production of gemstones typical of the Nusantara conducted in Salatiga.
Ricky Arnold Nggili   +1 more
doaj   +1 more source

Gemstone Inclusion Study by 3D Raman-Mapping and High-Resolution X-ray Computed Tomography: The Case of Trapiche Emerald from Swat, Pakistan

open access: yesCrystals, 2022
Gemstones usually contain inclusions as the natural hallmark of their formation. Studies on inclusions may contribute to our understanding of the gem and better adapt to the gems and jewelry industry.
Yujie Gao   +5 more
doaj   +1 more source

Review on the Application of X-ray Diffraction in Gem Identification, Synthesis and Crystal Structure Research

open access: yesYankuang ceshi, 2016
Due to the nondestructive requirements of gem testing, evaluation of precious stones shows characteristics of science and uncertainty. Gemological application of X-ray Diffraction (XRD) is specialized, with its application mainly concentrated in three ...
ZHANG Ni, LIN Chun-ming
doaj   +1 more source

Characterization and discrimination of some gem silicate minerals adopting LIBS, FTIR, and Raman spectroscopic techniques

open access: yesAIP Advances, 2023
In this paper, characterization and discrimination of some silicate gems (gemstones and low-gem quality varieties) from ancient Egyptian mines have been performed for the first time adopting molecular and elemental spectroscopic techniques.
Amal Abdelfattah Khedr   +3 more
doaj   +1 more source

Problems Faced by Online Gemstone Traders of NamakMandi market at Pakistani Airports

open access: yesJournal of Business and Social Review in Emerging Economies, 2023
Purpose: This paper analyses the views and experiences of gemstone traders at the NamakMandi (NM) gemstone market. Methodology: The paper draws on the data from a stakeholder’s workshop held at Bacha Khan University Charsadda (Pakistan) and ten (10 ...
Syed Owais   +2 more
doaj   +1 more source

Dynamics and Applications of Photon-Nanostructured Systems

open access: yesNanomaterials, 2020
In a speedy and complicated word, only a small number of book readers have the time to dig out the hidden “gemstones” between the text lines [...]
Evangelia Sarantopoulou
doaj   +1 more source

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