Results 101 to 110 of about 1,314,344 (348)

Single-quantum annihilation of positrons at low energies

Physics Letters B
We discuss the low-energy single-quantum positron annihilation with a bound electron. The angular distribution and the total cross section are considered.
Peter A. Krachkov, Simon V. Sorokin
doaj   +1 more source

Production cross section of Λ- and Λ-hyperons in proton-nucleus interactions at 920 GeV on carbon, titanium and tungsten targets [PDF]

Ядерна фізика та енергетика, 2008
Inclusive cross section for the production of Λ - and Λ -hyperons in proton-nucleus interactions at 920 GeV on carbon, titanium and tungsten targets are investigated.
A. O. Lymanets, C. V. Prystupa, V. M. Pugatch   +2 more
doaj  

Measurement of one-particle correlations and momentum distributions for trapped 1D gases

, 2000
van Hove's theory of scattering of probe particles by a macroscopic target is generalized so as to relate the differential cross section for atomic ejection via stimulated Raman transitions to one-particle momentum-time correlations and momentum ...
A. B. Kuklov, Charles J. Joachain, D. A. Micha, D. A. Micha, D. M. Stamper-Kurn, D. S. Petrov, E. A. Hinds, E. M. Wright, E. V. Goldstein, E. W. Hagley, F. Gleisberg, F. Zambelli, G. M. Moy, I. Bloch, J. H. Thywissen, J. H. Thywissen, J. Stenger, L. P. Pitaevskii, L. van Hove, M. D. Girardeau, M. D. Girardeau, M. Girardeau, M. Girardeau, M. Key, M. Olshanii, Mark Edwards, P. C. Hohenberg   +26 more
core   +1 more source

Advancing Age Modulates Associations Between Cognitive Impairment and Brain Volumes in Early MS

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Cognitive impairment is common in multiple sclerosis (MS), but manifestations following the first demyelinating event are relatively unexplored. We investigated cross‐sectional associations between magnetic resonance imaging (MRI)–derived brain volumes and the presence of cognitive impairment outcomes five years after the first ...
Piriyankan Ananthavarathan, Marco Pitteri, Michael Foster, Sara Collorone, Sara Salama, Elisa Colato, Ferran Prados, Baris Kanber, Marios Yiannakas, Claudia A. M. Gandini Wheeler‐Kingshott, Indran Davagnanam, Frederik Barkhof, Declan Chard, Olga Ciccarelli, Ahmed Toosy   +14 more
wiley   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source

Evaluation of The Nuclear Data on(α,n)Reaction for Natural Molybdenum

Ibn Al-Haitham Journal for Pure and Applied Sciences, 2017
The cross section evaluation for (α,n) reaction was calculated according to the available International Atomic Energy Agency (IAEA) and other experimental published data .
H.M.T. Hamadani, T.A. Younis, S. A. Ebrahiem   +2 more
doaj  

Single-photon single ionization of W$^{+}$ ions: experiment and theory

, 2015
Experimental and theoretical results are reported for photoionization of Ta-like (W$^{+}$) tungsten ions. Absolute cross sections were measured in the energy range 16 to 245 eV employing the photon-ion merged-beam setup at the Advanced Light Source in ...
Ballance, C. P., Hellhund, J., Holste, K., Kilcoyne, A. L. D., McLaughlin, B. M., Müller, A., Phaneuf, R. A., Schippers, S.   +7 more
core   +1 more source

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

Advanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi, Pasquale Guglielmi, Gianfranco Palumbo, Giuseppe Carbone   +3 more
wiley   +1 more source

Optical model potential analysis of $\bar nA$ and $nA$ interactions

, 2018
We use a momentum-dependent optical model potential to analyze the annihilation cross sections of antineutron $\bar n$ on C, Al, Fe, Cu, Ag, Sn, and Pb nuclei for projectile momenta $p_{\rm lab}$ $\lesssim$ 500 MeV/$c$.
Lee, Teck-Ghee, Wong, Cheuk-Yin
core   +1 more source

Harnessing Fungal Biowelding for Constructing Mycelium‐Engineered Materials

Advanced Engineering Materials, EarlyView.
Mycelium‐bound composites (MBCs) offer low‐carbon alternatives for construction, yet interfacial bonding remains a critical challenge. This review examines fungal biowelding as a biocompatible adhesive, elucidating mycelium‐mediated interfacial mechanisms and their role in material assembly. Strategies to optimize biowelding are discussed, highlighting
Xue Brenda Bai, Xinrui Sarah Niu, Zhao Qin   +2 more
wiley   +1 more source