Results 41 to 50 of about 364,432 (293)

X-ray induced electronic structure change in CuIr$_2$S$_4$

, 2011
The electronic structure of CuIr$_2$S$_4$ has been investigated using various bulk-sensitive x-ray spectroscopic methods near the Ir $L_3$-edge: resonant inelastic x-ray scattering (RIXS), x-ray absorption spectroscopy in the partial fluorescence yield ...
Casa, D., Cheong, S. W., Choi, K. R., Gog, T., Gretarsson, H., Kim, Jungho, Kim, Young-June   +6 more
core   +1 more source

Multicolor single-analyzer high-energy-resolution XES spectrometer for simultaneous examination of different elements

Journal of Synchrotron Radiation, 2022
The present work demonstrates the performance of a von Hámos high-energy-resolution X-ray spectrometer based on a non-conventional conical Si single-crystal analyzer.
Antal Mikeházi, Jihad El Guettioui, István B. Földes, György Vankó, Zoltán Németh   +4 more
doaj   +1 more source

High-Resolution X-Ray Spectroscopy of the Accretion Disk Corona Source 4U 1822-37

, 2001
We present a preliminary analysis of the X-ray spectrum of the accretion disk corona source, 4U 1822-37, obtained with the High Energy Transmission Grating Spectrometer onboard the Chandra X-ray Observatory.
Duane A. Liedahl, Frank J., Frits Paerels, Hellier C., Jean Cottam, Masao Sako, Parmar A. N., Steven M. Kahn   +7 more
core   +1 more source

On the Amplitude of Burst Oscillations in 4U 1636-54: Evidence for Nuclear Powered Pulsars [PDF]

, 1998
We present a study of 581 Hz oscillations observed during a thermonuclear X-ray burst from the low mass X-ray binary (LMXB) 4U 1636-54 with the Rossi X-ray Timing Explorer (RXTE).
Iosif Lapidus, Jean H. Swank, Nicholas E. White, Tod E. Strohmayer, Univeristy Of Sussex, William Zhang   +5 more
core   +3 more sources

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Evaluation of the Potential of Laser Shock Peening Compared with Cold Expansion for Improving Fatigue Resistance of Riveted Lap Joints of Aerospace Grade 7175 Al Alloy

Advanced Engineering Materials, EarlyView.
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar, David Osman Busse, Maximilian Sprengel, Domenico Furfari, Marc‐André Nielsen, Guilherme Abreu Faria, Jérémy Epp   +6 more
wiley   +1 more source

Scientific Opportunities for Heterogeneous Catalysis Research at the SuperXAS and SNBL Beam Lines

CHIMIA, 2012
In this short review, we describe the complementary experimental capabilities for catalysis research at two beam lines available to the Swiss community, SuperXAS at SLS (Swiss Light Source, Villigen) and SNBL (Swiss Norwegian Beam lines) at ESRF
Paula M. Abdala, Olga V. Safonova, Geir Wiker, Wouter van Beek, Herman Emerich, Jeroen A. van Bokhoven, Jacinto Sá, Jakub Szlachetko, Maarten Nachtegaal   +8 more
doaj   +1 more source

Simultaneous X-ray and optical spectroscopy of the Oef supergiant lambda Cep [PDF]

, 2015
Probing the structures of stellar winds is of prime importance for the understanding of massive stars. Based on their optical spectral morphology and variability, the stars of the Oef class have been suggested to feature large-scale structures in their ...
Eenens, P., Gonzalez-Perez, J. N., Gosset, E., Hempelmann, A., Herve, A., Mittag, M., Naze, Y., Rauw, G., Schmitt, J. H. M. M., Schroeder, K. -P., Uuh-Sonda, J. M.   +10 more
core   +3 more sources

Duplex Stainless Steel Laser‐Surface Textured: Stability in Brine Solution

Advanced Engineering Materials, EarlyView.
Controlled laser‐surface treatment (LST) of duplex DSS2205 steel is performed to increase its stability in brine solution under cyclic electrochemical assays. The superior protection with respect to flat and smooth panels is attributed to the presence of FeCr2O4 as the main protective oxide layer in the LST surface, after corrosion tests. The stability
Mohammad Rezayat, Hamidreza Enshaei, Elaine Armelin, José I. Iribarren, Antonio Mateo, Miguel Morales   +5 more
wiley   +1 more source

Thick tori around AGN: the case for extended tori and consequences for their X-ray and IR emission [PDF]

, 1997
Two families of models of dusty tori in AGNs (moderately thick and extended versus very thick and compact) are tested against available observations. The confrontation suggests that the former class better explains the IR broad-band spectra of both broad
Alberto Franceschini, Almaini O., Alonso-Herrero A., Antonucci R., Boyle B. J., Celotti A., Chokshi A., Comastri A., Efstathiou A., Efstathiou G., Fabian A. C., Franceschini A., Gian Luigi Granato, Granato G. L., Greenhill L. J., Hughes D. H., Inglis M. D., Kotilainen J. K., Lawrence A., Luigi Danese, Matt G., Moorwood A. F. M., Nandra K., Puget J. L., Roche R. J., Setti G., Smith D. A.   +26 more
core   +3 more sources