Results 71 to 80 of about 4,366 (259)
High‐Performance Piezoelectric Nanogenerators Based on Wurtzite BeO Nanowire Arrays
Advanced Materials Technologies, EarlyView.This study demonstrates high‐performance piezoelectric nanogenerators based on 1D BeO nanowire arrays. The BeO nanowires exhibit a high piezoelectric coefficient (∼15.8 pm V−1) and deliver an output voltage of ∼26.1 V and power density of ∼0.32 µW cm−2.
Yoonseo Jang +7 more
wiley +1 more source
Neutron Star Matter and Neutron Star Models
Zeitschrift für Naturforschung A, 1974 Various methods to study the ground state of neutron star matter are compared and the corresponding neutron star models are contrasted with each other. In the low density region ρ < 1014gr cm-3 the nuclear gas is treated here by means of a Thomas Fermi method and the nuclei are described by the droplet model of Myers and Swiatecki.
H. Heintzmann +3 more
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Advanced Science, EarlyView.Temperature‐dependent electron diffraction on tin monochalcogenides demonstrates a gradual displacive transformation between ferroelectric and paraelectric phases with significant variability in lattice constants and Curie temperature (TC). Periodic variations exist even between domains in individual crystals, implying a domain‐specific Curie ...
Peter Sutter, Eli Sutter
wiley +1 more source
A Coherent Radio Burst from an X-Ray Neutron Star in the Carina Nebula
The Astrophysical Journal LettersThe neutron star zoo comprises several subpopulations that range from energetic magnetars and thermally emitting X-ray neutron stars to radio-emitting pulsars. Despite studies over the last five decades, it has been challenging to obtain a clear physical
K. M. Rajwade +12 more
doaj +1 more source
Monster Radiative Shocks in the Perturbed Magnetospheres of Neutron Stars
The Astrophysical Journal, 2023 Magnetospheres of neutron stars can be perturbed by star quakes, interaction in a binary system, or sudden collapse of the star. The perturbations are typically in the kilohertz band and excite magnetohydrodynamic waves.
Andrei M. Beloborodov
doaj +1 more source
Physics of Particles and Nuclei, 2008 In these lecture notes I briefly discuss the present day situation and new discoveries in astrophysics of neutron stars focusing on isolated objects. The latter include soft gamma repeaters, anomalous X-ray pulsars, central compact objects in supernova remnants, the Magnificent seven, and rotating radio transients.
openaire +2 more sources
Neutron-Star Radius from a Population of Binary Neutron Star Mergers [PDF]
Physical Review Letters, 2018 9 pages and 7 ...
Bose, Sukanta +4 more
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Spatial Engineering of Gas Diffusion Layers Overcomes Mass Transport Limitations in Fuel Cells
Advanced Science, EarlyView.ABSTRACT Mass transport limitations at high current densities hinder polymer electrolyte fuel cell (PEFC) performance due to inefficient water management and reactant distribution. Gas diffusion layer (GDL) perforation offers a potential solution as an alternative to complex flow‐field modifications.
Shangwei Zhou +12 more
wiley +1 more source
ON THE MAXIMUM MASS OF NEUTRON STARS [PDF]
International Journal of Modern Physics E, 2013 One of the most intriguing questions about neutron stars concerns their maximum mass. The answer is intimately related to the properties of matter at densities far beyond that found in heavy atomic nuclei. The current view on the internal constitution of neutron stars and on their maximum mass, both from theoretical and observational studies, are ...
Chamel, Nicolas +3 more
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Advanced Science, EarlyView.This study achieves anisotropic thermal expansion tuning in Nd2(Co1‐xFex)17‐yCry compounds via a magnetoelastic strategy. Variable‐temperature synchrotron X‐ray diffraction reveals that increased Fe content induces switchable lattice responses. Compositional control reduces the volume expansion coefficient αV by 20% (x═0.7) and modulates TC (442–625 K),
Jiayuan Li +8 more
wiley +1 more source