Results 131 to 140 of about 4,526 (269)

Conversion of neutron stars to strange stars as the central engine of gamma-ray bursts

open access: yes, 2000
We study the conversion of a neutron star to a strange star as a possible energy source for gamma-ray bursts. We use different recent models for the equation of state of neutron star matter and strange quark matter.
Baldo M.   +4 more
core   +1 more source

Low‐Cost Friction‐Based Force‐Limiting Connection With Reduced Sensitivity to Machining Tolerances and Accelerated Repairability

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT This paper presents a novel yet practical friction‐based structural component design for low‐damage earthquake‐resistant structures. The proposed connection design is based on a conventional slotted‐bolted configuration with the novelty being the use of loose steel washer plates to establish the friction‐sliding interface.
Kaixin Chen   +7 more
wiley   +1 more source

Computational modeling of dynamic injector response in a Rotating Detonation Engine (RDE)

open access: yesApplications in Energy and Combustion Science
Rotating Detonation Engines (RDEs) are a form of pressure gain combustion (PGC), offering a promising approach to increase the thermodynamic efficiency of a gas turbine combustor by utilizing a detonation-driven combustion process. In most RDEs, fuel and
Piyush Raj, Ashwin Kumar, Joseph Meadows
doaj   +1 more source

Protocol for the Preparation of Polyphenols‐Polysaccharide Nanoparticles

open access: yesFood Chemistry International, EarlyView.
ABSTRACT Polyphenols, natural compounds abundantly distributed in plants, possess potent antioxidant and anti‐inflammatory activities and hold promising potential in cardiovascular protection and the management of metabolic disorders. Nevertheless, their intrinsic instability and low bioavailability severely constrain their practical and large‐scale ...
Chenxu Bao   +6 more
wiley   +1 more source

Analysis of Aerodynamic Characteristics of Rotating Detonation Turbine Based on Proper Orthogonal Decomposition Method

open access: yesAerospace
The unsteady interactions in rotating detonation turbine engines (RDTE) remain poorly understood. To address this, a 2D numerical model integrating a rotating detonation combustor (RDC) with a first-stage turbine is established to analyze flow structures
Meiting Ling   +4 more
doaj   +1 more source

Laser High-Cycle Thermal Fatigue of Pulse Detonation Engine Combustor Materials Tested [PDF]

open access: yes
Pulse detonation engines (PDE's) have received increasing attention for future aerospace propulsion applications. Because the PDE is designed for a high-frequency, intermittent detonation combustion process, extremely high gas temperatures and pressures ...
Fox, Dennis S.   +2 more
core   +1 more source

Experimental Factors and Techniques for Pool Boiling Heat Transfer Enhancement: A Critical Review

open access: yesHeat Transfer, EarlyView.
ABSTRACT This review presents a comprehensive assessment of active strategies for enhancing pool boiling heat transfer, with a focus on techniques that do not rely solely on the boiling surface modification. It examines a broad range of methodologies including fluid additives, external fields, mechanical interventions, and thermal‐geometric tuning that
José E. Pereira   +2 more
wiley   +1 more source

Structural design and property regulation of organic polymers for photocatalytic synthesis of H2O2

open access: yesInfoScience, EarlyView.
Photocatalytic synthesis of H2O2 offers a sustainable approach. Photocatalytic efficiency depends critically on interfacial electron transfer kinetics and spatial charge separation. Herein, we systematically analyze key factors governing photogenerated carrier dynamics and propose engineered strategies to optimize performance, thereby providing design ...
Mingyang Xu   +8 more
wiley   +1 more source

ANALISIS KERUSAKAN AKIBAT MISFIRING PADA MOTOR TORAK DENGAN MENGGUNAKAN METODA GETARAN

open access: yesRekayasa Mesin
The working principle of the piston engine consists of a system that follows a thermodynamic cycle and a mechanical cycle. The thermodynamic cycle is known as a (P-T) diagram while the mechanical cycle is known as a (P-V) diagram.
Subekti Subekti   +2 more
doaj   +1 more source

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