Results 51 to 60 of about 455,834 (341)

Testing Lorentz Symmetry with Gravity [PDF]

open access: yes, 2007
In this talk, results from the gravitational sector of the Standard-Model Extension (SME) are discussed. The weak-field phenomenology of the resulting modified gravitational field equations is explored.
Bailey, Quentin G.
core   +3 more sources

Gravitational Field and Mass

open access: yes, 2021
It is extremely fascinating and astonishing that the gravitational field on the surface of a neutron star is with a relativistic mass density of 2.65*1016~5.87*1018kgm-3 which can be larger than the mass density of the neutron star (~1017kgm-3).Therefore, it is the author’s first intuitional imagining that this field could directly convert ...
openaire   +2 more sources

Recent Advances in Collective Behaviors of Micro/Nanomotor Swarms

open access: yesAdvanced Materials, EarlyView.
This review describes the driving forces behind collective motion, explores the self‐organization of micro/nano swarms across zero‐dimensional (0D), one‐dimensional (1D), two‐dimensional (2D), and three‐dimensional (3D) spaces, and highlights their potential in drug delivery, environmental monitoring, and smart devices.
Siwen Sun   +4 more
wiley   +1 more source

Online Knowledge Learning Model Based on Gravitational Field Theory

open access: yesApplied Sciences, 2019
Currently, low-dimensional embedded representation learning models are the mainstream approach in knowledge representation research, due to ease of calculation and ability to utilize the spatial relationship between knowledge areas, which benefit from ...
Wenfei Ji   +5 more
doaj   +1 more source

Autonomous Spatiotemporal Regulation of Reversible Hydrogel Actuators by Chemical Reaction Networks

open access: yesAdvanced Materials, EarlyView.
Hydrogel actuators with reversible response to thiols are developed using reversible binding of thiols to Michael acceptors. Autonomous spatiotemporal regulation of reversible movement of these hydrogels is achieved using thiol‐based chemical reaction networks containing both positive and negative feedback.
Fan Liao   +3 more
wiley   +1 more source

Quasinormal modes of Dirac field in 2 + 1 dimensional gravitational wave background

open access: yesPhysics Letters B, 2019
In this study, we investigate the solutions of the massive and massless Dirac equation, at first, in the 2+1 dimensional gravitational wave background and then in the background with the presence of a constant magnetic field.
Semra Gurtas Dogan, Yusuf Sucu
doaj   +1 more source

On The Interaction of Gravitational Waves with Magnetic and Electric Fields

open access: yes, 2010
The existence of large--scale magnetic fields in the universe has led to the observation that if gravitational waves propagating in a cosmological environment encounter even a small magnetic field then electromagnetic radiation is produced. To study this
Barrabes, C., Hogan, P. A.
core   +2 more sources

Aqueously Upcycled Lignin with Emergent Tribonegativity for Skin‐Integrated Triboelectronics

open access: yesAdvanced Materials, EarlyView.
Aqueously upcycled lignin is transformed into a printable ink that self‐assembles into a nanotextured surface during printing with the highest reported biopolymer‐based tribonegativity. The resulting skin‐integrated triboelectric sensor enables high‐fidelity cardiovascular monitoring and objective mental workload classification, demonstrating a ...
Robert Ccorahua‐Santo   +3 more
wiley   +1 more source

Empirical investigation on influence of Moon’s gravitational-field to Earth’s global temperature

open access: yesSistemnì Doslìdženâ ta Informacìjnì Tehnologìï, 2019
This research examined a possibility of the Moon’s gravitational-wave that may influence Earth’s global temperature, with a mathematical method of empirical analysis with the data of the global temperature, global carbon dioxide, and the distance between
Yoshio Matsuki, Petro I. Bidyuk
doaj   +1 more source

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