Results 21 to 30 of about 2,871 (203)
Direct Formation of Hard‐Magnetic Tetrataenite in Bulk Alloy Castings
Advanced Science, 2023 Currently, predominant high‐performance permanent magnets contain rare‐earth elements. In the search for rare‐earth‐free alternates, body‐centered tetragonal Fe–Ni is notable.
Yurii P. Ivanov +4 more
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Structure of the chondrules and the chemical composition of olivine in meteorite Jesenice
Geologija, 2013 This paper presents a mineralogical analysis of various chondrule types and chemical analysis of olivine indifferent parts of meteorite Jesenice. Quantitative energy-dispersive X-ray spectroscopy with a scanning electronmicroscope was used in the ...
Bojan Ambrožič +3 more
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GROUPS OF METEORITE-PRODUCING METEOROIDS AND METEORITES IN ASTEROIDAL ORBITS AND THEIR SOURCES
Odessa Astronomical Publications, 2020 This paper presents the results of the analysis of possible existence of nine near-Earth meteorite-producing groups in asteroidal orbits, consisting of sporadic fireballs from the IAU MDC 2007 database, sporadic meteors from the SonotaCo database ...
Yu. M. Gorbanev +2 more
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Influence of the Yucatan earthquake event
Frontiers in Earth Science, 2023 In recent years, seismic wave effects caused by meteorite impacts have been widely observed. The meteorite impact event that occurred 66 million years ago is one of the most famous impact events in Earth’s history.
Changcheng Li
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Silica-rich volcanism in the early solar system dated at 4.565 Ga
Nature Communications, 2018 Achondritic meteorites can record volcanism and crust formation on planetesimals in the early Solar System. Here, the authors date the Northwest Africa 11119 meteorite with an Al-Mg age of 4564.8 ± 0.3 Ma indicating that this is the earliest evidence of ...
Poorna Srinivasan +7 more
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Propagation of Rayleigh waves at oblique impact of the meteorite about the earths surface and their effects on buildings and structures [PDF]
Компьютерные исследования и моделирование, 2013 In this paper the dynamic elasticity problem of the simultaneous normal and tangential impact on the half-space is solved. This problem simulates the oblique incidence of meteorite on the Earths surface. The surface Rayleigh wave is investigated.
V. L. Yakushev +2 more
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ChemPhysChem, Volume 26, Issue 6, March 15, 2025.The ionization of anthracene, acridine, and phenazine has been explored, along with the removal of one and two hydrogen atoms, to provide valuable information for astrochemists and to understand the behavior of the resulting structures and their electronic reorganization. Abstract In this study, we systematically explored the stability and isomerism of
Khaldia Zghida +3 more
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A Nonlinear Quantitative Model for Measuring Concentration Ratios From Raman Intensities
Journal of Raman Spectroscopy, EarlyView.Estimating concentration from Raman intensity ratios is complicated by cross‐contributions from overlapping peaks, causing measured ratios to deviate from the linear behavior assumed in conventional quantitative models. This nonlinear method fully accounts for cross‐contributions, allowing estimation of concentration over several orders of magnitude ...
Joseph Razzell Hollis
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Trace element composition of troilite, iron and iron-nickel metall from meteorite Chelyabinsk
Литосфера, 2015 We studied the contents of trace elements in troilite, iron and in iron-nickel metal from meteorite Chelyabinsk by means of LA-ICP-MS. The features of the distribution of siderophile and chalcophile elements in sulfide and metallic phase in gray and ...
S. Yu. Stepanov, S. V. Berzin
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Evaluation of Geomorphological Evidences for Possible Impact Crater of Zirouki in Sistan and Baluchestan, SE Iran [PDF]
مخاطرات محیط طبیعی, 2014 Despite the extensive studies on geomorphological phenomena in Iran, since investigation of meteorite impact craters h not been considered. Based on both remote sensing technique and field work we have recognized the circular structure of Zirouki crater ...
Mohammadreza Mansouri Daneshvar +1 more
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