Results 71 to 80 of about 1,737 (200)
The Malysheva emerald mine (Urals, Russia) boasts a long history and extraordinary emerald output. However, recent studies indicate that Malysheva emeralds share highly similar inclusion varieties, UV-visible-near infrared (UV-Vis-NIR) spectra, and ...
Yu-Yu Zheng +3 more
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The study of precious stones and its sources in the cycle of sermons entitled „Nuptiae Agni” by Antoni Węgrzynowicz [PDF]
This article centers on the literary achievements of preacher Antoni Węgrzynowicz (1658-1721) from the collection Nuptiae Agni . Gody Baranka apokaliptycznego… (Krak.w 1711) – „Nuptials of the Apocalyptic Lamb” (transl.) – in which there are, among ...
Kroczak, Jerzy
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Spodumene is a characteristic mineral in lithium-rich granitic pegmatites, serving both as a valuable mineral resource and an important gem material. This study incorporates three different color varieties of spodumene—pink to violet, yellow-green, and ...
Zijia Zhou +4 more
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Purple Garnets from East Africa [PDF]
During the June 2015 JCK gem and jewellery show in Las Vegas, Nevada, USA, news circulated about some attractive new purple garnets from East Africa.
Hoover, Don +2 more
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The Many Facets of Matthew Dearing [PDF]
Whether crafting custom jewelry, performing onstage or sharing the excitement of citizen science, Matthew Dearing ’00 explores life’s dynamic ...
Huttes, Celeste
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A history of the gamma-ray burst flux at the Earth from Galactic globular clusters [PDF]
Nearby gamma-ray bursts (GRBs) are likely to have represented a significant threat to life on the Earth. Recent observations suggest that a significant source of such bursts is compact binary mergers in globular clusters.
Bailer-Jones, Coryn A. L. +2 more
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РЕАЛІЗАЦІЯ МІКРОТЕМИ "НАУКОВА ДИСЦИПЛІНА" В АМЕРИКАНСЬКІЙ АКАДЕМІЧНІЙ ЛЕКЦІЇ [PDF]
Статтю присвячено вивченню жанру американської академічної лекції, зокрема, її змістового аспекту, а саме: сегменту, що охоплює макротема 'Наукова дисципліна'. У межах цієї макротеми виокремлено підтеми та відповідні їм мікротеми.
Рябих, Л. М.
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DC-powered Fe3+:sapphire Maser and its Sensitivity to Ultraviolet Light
The zero-field Fe3+:sapphire whispering-gallery-mode maser oscillator exhibits several alluring features: Its output is many orders of magnitude brighter than that of an active hydrogen maser and thus far less degraded by spontaneous-emission (Schawlow ...
Bourgeois, Pierre-Yves +3 more
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Kewenangan Pegadaian dalam Menerbitkan Sertifikat Batu Mulia di Indonesia [PDF]
Authority of Pegadaian in Issuance of the Certificates of Precious Stones in Indonesia.This research aimed to determine the institution authorized to issue the certificate of the precious stones in Indonesia.
Putra, A. A. (Alif)
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The Saline chymistry of color in seventeenth-century English natural history [PDF]
Before Newton’s seminal work on the spectrum, seventeenth-century English natural philosophers such as Robert Boyle, Robert Hooke, Nehemiah Grew and Robert Plot attributed the phenomenon of color in the natural world to salts and saline chymistry.
Roos, Anna Marie
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