Results 101 to 110 of about 4,313 (174)

Dynamics of Purification in Cu2O

physica status solidi (b), EarlyView.
Rydberg excitons in Cu2O have been shown to be highly efficient in neutralizing and screening charged impurities, which is referred to as purification. In this manuscript, the dynamics of the purification process are investigated under varying probe exciton‐ and plasma density. The transient absorption of Rydberg excitons is analyzed and five different
Binodbihari Panda, Juliane Rütter, Julian Heckötter, Marc Alexander Aßmann   +3 more
wiley   +1 more source

The Multiple Origin of Blue Straggler Stars: Theory vs. Observations

, 2014
In this chapter we review the various suggested channels for the formation and evolution of blue straggler stars (BSSs) in different environments and their observational predictions.
A. Hypki, A. Jorissen, A. M. Geller, A. M. Geller, A. M. Geller, A. S. Hamers, A. Tokovinin, B. W. Carney, B. W. Carney, C. Abate, D. Fabrycky, D. Raghavan, D. T. F. Weldrake, D. T. F. Weldrake, D. W. Latham, F. Antonini, F. R. Ferraro, F. R. Ferraro, H. B. Perets, H. B. Perets, H. B. Perets, H. B. Perets, J. G. Hills, J. M. Fregeau, J. M. Nemec, J. R. Hurley, L. G. Kiseleva, L. Lovisi, L. Lovisi, M. Auriere, M. B. Davies, M. L. Lidov, M. M. Shara, M. Mapelli, M. Mateo, N. Leigh, N. Leigh, P. Eggleton, P. J. T. Leonard, P. J. T. Leonard, P. J. T. Leonard, P. J. T. Leonard, P. J. T. Leonard, P. P. Eggleton, P. P. Eggleton, R. D. Mathieu, R. D. McClure, R. Kippenhahn, R. S. Harrington, S. Chatterjee, S. M. Rucinski, T. Dermine, T. Mazeh, W. Benz, W. H. McCrea, W. H. McCrea, W. I. Clarkson, W. Landsman, X. Chen, Y. Kozai   +59 more
core   +1 more source

Nondestructive Analysis of Coercivity Distributions in Permanent Magnets with Locally Enhanced Magnetic Properties

physica status solidi (RRL) – Rapid Research Letters, EarlyView.
A nondestructive method enables quantification of local coercivity variations in permanent magnets. By combining magnetic field mapping with closed‐circuit hysteresisgraph measurements, spatial coercivity distributions Hcj(y) are reconstructed. Validation by destructive analysis confirms accuracy, enabling reliable quality assessment and supporting ...
Maximilian Lanz, Marius Boettle, Gerhard Martinek, Gerhard Schneider, Dagmar Goll   +4 more
wiley   +1 more source

Mesoscale dynamics of cyclone Leslie (2018): A diagnostic analysis of a rare Iberian landfall

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This study presents a successful numerical simulation of cyclone Leslie (2018), using WRF‐ARW v4.5.1. Several mesoscale dynamics were identified indicative of the occurrence of sting jet and cold conveyor belt, which potentiated the record‐breaking winds in central Portugal.
Miguel M. Lima, Luana C. Santos, Albenis Pérez‐Alarcón, Pedro M. M. Soares, Ricardo M. Trigo, Rita M. Cardoso   +5 more
wiley   +1 more source

Stellar Collisions and Blue Straggler Formation

, 2001
We review recent 3D hydrodynamic calculations of stellar collisions using the Smoothed Particle Hydrodynamics (SPH) method, and we discuss the implications of the results for the formation and evolution of blue stragglers in globular clusters. We also discuss the construction of simple analytic models for merger remnants, approximating the mass loss ...
Lombardi, James C., Rasio, Frederic A.
openaire   +2 more sources

Million‐Atom Wave Function Simulations of a Single Donor Qubit Made in Silicon Utilizing Ion Implantation Technology

Advanced Quantum Technologies, EarlyView.
Ion implanted donor atom qubits in silicon have demonstrated leading coherence times and gate fidelities. We investigate implantation positional uncertainties with a 40 million silicon atom quantum model based on the atomistic tight‐binding technique.
Haolin Huang, Liam G. Thomas, Muhammad Usman, Rajib Rahman, David N. Jamieson   +4 more
wiley   +1 more source

Queer in Science, Technology, Engineering, and Mathematics: Following the Intersections of Queerness, Transness and Science Identities

Science Education, EarlyView.
ABSTRACT This multiple case study explores the intersections of queerness/transness and science education through a combined framework of queer theory, intersectionality, the construct of figured worlds and science identity. The study uses a life‐history approach to characterize the trajectories of three purposefully selected queer individuals who are ...
Nelly K. M. Marosi, Lucy Avraamidou, Mónica López López, Allison Jardim Gonsalves   +3 more
wiley   +1 more source

Noise Suppression in Organic Photodiodes: A Comprehensive Review of Mechanistic Insights and Design Principles

Small, EarlyView.
Organic photodiodes are limited by dark current and excess low‐frequency noise. This review synthesizes mechanisms of noise, links to three leakage pathways, and unifies measurement practice with device design. By outlining energetics, morphology, and interface strategies, it provides validated routes to lower noise floors and higher detectivity across
Gyeong Min Lee, Tae Hyuk Kim, Yunsang Kim, Jae Won Shim   +3 more
wiley   +1 more source

Coercivity‐Size Map of Magnetic Nanoflowers: Spin Disorder Tunes the Vortex Reversal Mechanism and Tailors the Hyperthermia Sweet Spot

Small Science, EarlyView.
Large‐scale micromagnetic simulations show how disorder and grain boundaries control magnetization dynamics in iron‐oxide nanoflowers beyond the single‐domain regime. Two competing vortex‐reversal modes emerge, producing a coercivity maximum at their transition.
Elizabeth M. Jefremovas, Lisa Calus, Jonathan Leliaert   +2 more
wiley   +1 more source

On‐Tip Polymerization Method for Multimodal Characterization of Nanoparticles with Electron/Ion Imaging and Atom Probe Tomography

Small Methods, EarlyView.
This study presents an on‐tip polymerization method that employs a needle substrate with a designed through‐microchannel (“needle‐eye”) to retain a picoliter‐scale solution of nanoparticles. Using a resin precursor as the solution, polymerization is carried out in situ at the needle tip.
Aristide Djoulde, Anup Sharma, Alfred Bekoe Appiagyei, Levi Tegg, Yang Liu, Lian Zhang, Julie M. Cairney, Yunlong Tang, Jing Fu   +8 more
wiley   +1 more source