Results 51 to 60 of about 17,937 (217)

Vibrational Spectroscopy of Selected Natural Uranyl Vanadates [PDF]

, 2005
Raman spectroscopy has been used to study a selection of uranyl vanadate minerals including carnotite, curienite, francevillite, tyuyamunite and metatyuyamunite. The minerals are characterised by an intense band in the 800 to 824 cm-1 region, assigned to
Appleman, Baran, Baran, Baran, Bartlett, Biwer, Botto, Botto, Branche, Burns, Cesbron, Cesbron, Chernorukov, Chernorukov, Chernorukov, Chernorukov, Dermot A. Henry, Frost, Frost, Frost, Frost, Frost, Frost, Frost, Frost, Jiří Čejka, Martens, Martens, Martens, Martens, Matt L. Weier, Mereiter, Morachevskii, Nenadkevich, Ray L. Frost, Rode, Shashkin, Stern, Veal, Wayde Martens, Wilkins, Čejka   +41 more
core   +2 more sources

Drelów, the 13th and latest meteorite fall in Poland—A typical L6 chondrite with shock veins

Meteoritics &Planetary Science, Volume 61, Issue 3, Page 466-486, March 2026.
Abstract On Tuesday, February 18, 2025, at 18:04:14 local time, residents of Poland observed a bright fireball registered by many Polish fireball stations belonging to the Skytinel Network established a few months before by Mateusz Żmija. Thus, the meteoroid's orbit, atmospheric trajectory, and the strewn field were calculated, and over 70 fragments ...
Addi Bischoff, Krzysztof Szopa, Jean‐Alix Barrat, Stig Bartel, Jasper Berndt, Tommaso Di Rocco, Dieter Heinlein, Stephan Klemme, Tomasz Krzykawski, Björn Lehnert, Agnieszka Mirek, Andreas Pack, Markus Patzek, Marie Pichotta, Maximilian P. Reitze, Stefan Ruchti, Philippe Schmitt‐Kopplin, Karl Wimmer, Mateusz Żmija   +18 more
wiley   +1 more source

Disentangling Partial Melting and Crustal Recycling Signatures in Ocean Island Basalts With Multivariate Statistics

Geochemistry, Geophysics, Geosystems
Ocean island basalts (OIB) provide valuable constraints on mass exchange between the mantle and crust. When appropriate compositional data transformations are applied, multivariate analyses of OIB compositions can be used to infer mantle source ...
Zachary T. Eriksen, Andreas Stracke
doaj   +1 more source

Novel Thiosemicarbazone Derivatives from Furan-2-Carbaldehyde: Synthesis, Characterization, Crystal Structures, and Antibacterial, Antifungal, Antioxidant, and Antitumor Activities

Journal of Chemistry, 2023
Ten new thiosemicarbazone derivatives, furan-2-carbaldehyde thiosemicarbazone (1), 3-methyl-furan-2-carbaldehyde thiosemicarbazone (2), 5-hydroxymethyl-furan-2-carbaldehyde thiosemicarbazone (3), 5-trifluoromethyl-furan-2-carbaldehyde thiosemicarbazone ...
Wilfredo Hernández, Fernando Carrasco, Abraham Vaisberg, Evgenia Spodine, Maik Icker, Harald Krautscheid, Lothar Beyer, Carmen Tamariz-Angeles, Percy Olivera-Gonzales   +8 more
doaj   +1 more source

Intrinsic peculiarities of real material realizations of a spin-1/2 kagome lattice

, 2008
Spin-1/2 magnets with kagome geometry, being for years a generic object of theoretical investigations, have few real material realizations. Recently, a DFT-based microscopic model for two such materials, kapellasite Cu3Zn(OH)6Cl2 and haydeeite Cu3Mg(OH ...
Geertsma W, H Rosner, J Richter, Janson O, Krause W, Levi B G, Lhuillier C, Malcherek T, O Janson, Schlüter J   +9 more
core   +1 more source

Semidiaphanam Tremuli Narcissuli Ideam Lacteam1: Ehrenfried Walther von Tschirnhaus (1651–1708) and His Determined Search for the Porcelain Principle

Archaeometry, Volume 68, Issue 1, Page 120-131, February 2026.
ABSTRACT With this contribution, an attempt is being made to chart the timeline of the invention of the European hard‐paste porcelain based on historical documents. They were evaluated to trace the development lines from Tschirnhaus's early experiments with burning mirrors and lenses in the 1680s to finding ‘wax porcelain’ around 1694 to the ...
Robert B. Heimann
wiley   +1 more source

Megathrust Stress Drop as Trigger of Aftershock Seismicity: Insights From the 2011 Tohoku Earthquake, Japan

Geophysical Research Letters, 2023
Numerous normal‐faulting aftershocks in subduction forearcs commonly follow large megathrust earthquakes. Postseismic normal faulting has been explained by stress changes induced by the stress drop along the megathrust. However, details of forearc stress
A. Dielforder, G. M. Bocchini, K. Kemna, A. Hampel, R. M. Harrington, O. Oncken   +5 more
doaj   +1 more source

A novel procedure for fast surface structural analysis based on LEED intensity data [PDF]

, 1989
By evaluating LEED intensities from different diffraction beams taken only at discrete energy intervals (which may be as large as 15–20 eV) the same degree of reliability in surface structure determination can be reached as with the conventional ...
Clarke, Clarke, Clarke, Cowell, D.L. Adams, G. Ertl, G. Kleinle, Gauthier, Heinz, Kleinle, Kleinle, Marquardt, Moritz, Nielsen, Ohtani, Pendry, Philip, Philip, Rous, Rous, Vainshtein, Van Hove, Van Hove, W. Moritz, Zanazzi   +24 more
core   +1 more source

Quantum phase transition in the dioptase magnetic lattice

, 2002
The study of quantum phase transitions, which are zero-temperature phase transitions between distinct states of matter, is of current interest in research since it allows for a description of low-temperature properties based on universal relations.
Baenitz M., Belov N. V., Binder K., Brandt H.-J., C Gros, G Güntherodt, H. H Otto, K.-Y Choi, M Baenitz, P Lemmens, Ribbe P. H.   +10 more
core   +1 more source

Structure, tectonics and metamorphic development of the Sancti Spiritus Dome (eastern Escambray massif, Central Cuba)

Geologica Acta, 2006
The Sancti Spiritus Dome of the eastern Escambray (Cuba) represents a metamorphic fold and thrust structure which was part of the Cretaceous subduction-accretion complex of the Greater Antillean Arc.
K. P. STANEK, W. MARESCH, F. GRAFÉ, C. H. GRAVEL, A. BAUMANN   +4 more
doaj   +1 more source