Results 71 to 80 of about 6,843,697 (359)

Thermodynamics of Quantum Ultra-cold Neutron Gas under Gravity of The Earth

open access: yes, 2012
The stored ultra-cold neutrons have been developed. A high density ultra-cold neutron gas has been recently produced by using the nuclear spallation method.
Hosaka, Atsushi   +2 more
core   +1 more source

Pairing correlations in N~Z pf-shell nuclei [PDF]

open access: yes, 1996
We perform Shell Model Monte Carlo calculations to study pair correlations in the ground states of $N=Z$ nuclei with masses A=48-60. We find that $T=1$, $J^{\pi}=0^+$ proton-neutron correlations play an important, and even dominant role, in the ground ...
Alhassid   +28 more
core   +2 more sources

Revealing the γ′ and γ″ Phase Fractions of Additively Manufactured and Differently Heat‐Treated Nickel‐Base Superalloy IN718 by Atom Probe Tomography and Their Impact on Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing is a promising route for the production of Ni‐base superalloys for turbine applications, such as Inconel 718. Nonetheless, it induces various changes in the microstructure and performance of these materials. One such change is the incidence of the δ‐Ni3Nb phase, whose impact on microstructure, aging precipitate fractions, and ...
Guilherme Maziero Volpato   +8 more
wiley   +1 more source

Neutron stars velocities and magnetic fields

open access: yesEPJ Web of Conferences, 2018
We study a model that explain neutron stars velocities due to the anisotropic emission of neutrinos. Strong magnetic fields present in neutron stars are the source of the anisotropy in the system.
Paret Daryel Manreza   +4 more
doaj   +1 more source

Temperature Profiles of Accretion Disks around Rapidly Rotating Neutron Stars in General Relativity and Implications for Cygnus X-2

open access: yes, 2000
We calculate the temperature profiles of (thin) accretion disks around rapidly rotating neutron stars (with low surface magnetic fields), taking into account the full effects of general relativity.
Arun V. Thampan   +14 more
core   +1 more source

Discovery of a correlation between the frequency of the mHz quasi-periodic oscillations and the neutron-star temperature in the low-mass X-ray binary 4U 1636-53 [PDF]

open access: yes, 2014
We detected millihertz quasi-periodic oscillations (QPOs) in an XMM-Newton observation of the neutron-star low-mass X-ray binary 4U 1636-53. These QPOs have been interpreted as marginally-stable burning on the neutron-star surface.
Altamirano, Diego   +2 more
core   +3 more sources

Oxide‐Based Ceramic Matrix Composites for High‐Temperature Environments: A Review

open access: yesAdvanced Engineering Materials, EarlyView.
This review examines oxide‐based ceramic matrix composites, focusing on their processing, composition, and mechanical properties for high‐temperature applications. Key topics include oxidation resistance, failure mechanisms, and corrosion behavior, with insights into their potential use in aerospace, nuclear power, and other high‐performance industries.
Karthikeyan Ramachandran   +2 more
wiley   +1 more source

Temperature Coefficient of Neutron Multiplication Factor [PDF]

open access: yesJournal of Nuclear Science and Technology, 1964
A method for calculating the temperature coefficient of the neutron multiplication factor in an infinite homogeneous medium is investigated for the purpose of discussion of the temperature coefficient for thermal reactors. Two kinds of expression for the temperature coefficient of the neutron multiplication factor are derived and given in terms of ...
openaire   +2 more sources

Hybrid Framework Materials: Next‐Generation Engineering Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Hybrid organic–inorganic materials merge the unique properties of organic and inorganic compounds, enabling applications in optoelectronics, gas storage, and catalysis. This review explores metal‐organic frameworks, hybrid organic–inorganic perovskites, and the emerging field of hybrid glasses, emphasizing their structures, functionalities, and ...
Jay McCarron   +2 more
wiley   +1 more source

Neutron depolarization due to ferromagnetism and spin freezing in CePd_{1−x}Rh_{x}

open access: yesPhysical Review Research, 2022
We report neutron depolarization measurements of the suppression of long-range ferromagnetism and the concomitant emergence of magnetic irreversibilities and spin freezing in CePd_{1−x}Rh_{x} around x^{*}≈0.6.
M. Seifert   +7 more
doaj   +1 more source

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