منابع مشابه
Radiation Damage in Scintillating Crystals1)
Crystal Calorimetry in future high energy physics experiments faces a new challenge to maintain its precision in a hostile radiation environment. This paper discusses the effects of radiation damage in scintillating crystals, and concludes that the predominant radiation damage effect in crystal scintillators is the radiation induced absorption, or color center formation, not the loss of scintil...
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Professor Dunitz questions the usefulness of ascribing crystalline structural stability to individual atom-atom intermolecular interactions viewed as bonding (hence stabilizing) whenever linked by a bond path. An alternative view is expressed in the present essay that articulates the validity and usefulness of the bond path concept in a crystallographic and crystal engineering context.
متن کاملFluid Inclusion Studies on Quartz Veinlets at the Yeylagh-e-Gharechi Porphyry Copper Deposit, Arasbaran Metallogenic Belt, Northwestern Iran
Yeylagh-e-Gharechi porphyry copper deposit is located in the Arasbaran metallogenic belt at northwestern Iran, 25 kilometer of Ahar. Porphyry mineralization at the Yeylagh-e-Gharechi deposit occurred in post-Oligocene quartz monzonite and monzonite bodies which was hosted by Eocene volcanic rocks. Mineralization occurred as veins, veinlets and dissemination in hypogene zone. Supergene zone has ...
متن کاملThe Computation of Spectra of Some 2D Photonic Crystals1
2D photonic crystal which comprises a periodic array of parallel lated dielectric constants and in [16, 20] for a periodic array rods of air of a square cross section embedded in a background of parallel dielectric rods of circular cross section whose lossless medium of higher dielectric constant. The numerical analyintersections with perpendicular planes form a triangular sis of dependence of ...
متن کاملPetroleum Tax Regime in Iran
Taxation is one of the significant phenomena in any economy as it not only generates revenues for existing government, but also serves as a fiscal tool and stabilization policy. One of the main types of taxation is the petroleum tax which accounts for more than 30% of revenue for developed countries and more than 85% for developing economies. This work focuses on petroleum producing giants in ...
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ژورنال
عنوان ژورنال: Journal of the American Chemical Society
سال: 1898
ISSN: 0002-7863,1520-5126
DOI: 10.1021/ja02072a013