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501
Hamilton–Jacobi method in non-minimal coupling inflation: metric vs. Palatini
Published 2025-01-01“…Abstract The Hamilton–Jacobi approach offers a natural framework for analyzing inflationary dynamics, relying on the specified Hubble parameter rather than the potential, particularly in extended gravity theories. In this study, we apply this method to investigate inflation with non-minimal coupling, comparing the metric and Palatini formulations. …”
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502
Development and Research Status of Heavy Oil Enhanced Oil Recovery
Published 2022-01-01“…This article focuses on the nine relatively mature heavy oil development technologies from the perspectives of the level of understanding of the mechanism and the scale of the mining field: steam huff and puff, steam flooding, steam-assisted gravity drainage (SAGD), in situ combustion, thermochemical combined flooding, multicomponent thermal fluid, polymer flooding, chemical viscosity reduction development, and microbial oil recovery, which are divided into two technical categories: thermal recovery and cold recovery development. …”
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503
Warm Inflation with Nonminimal Derivative Coupling
Published 2014-01-01“…We study the effects of the nonminimal derivative coupling on the dissipative dynamics of the warm inflation where the scalar field is nonminimally coupled to gravity via its kinetic term. We present a detailed calculation of the cosmological perturbations in this setup. …”
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504
Approximated Stiffness Coefficients in Rotor Systems Supported by Bearings with Clearance
Published 2010-01-01“…When designing such machinery it is important to be able to predict dynamics and hence valid models are needed. Due to gravity, the shaft often vibrates close to a static equilibrium position leading to a possibility to linearise the equation of motion. …”
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505
Gravitational model: analysis of mutual trade of the Eurasian Economic Union countries
Published 2023-12-01“…This study presents the aggregative data analysis concerning foreign trade of the Eurasian Economic Union (hereinafter referred to as EAEU) countries. A gravity model of the foreign trade in several modifications between 2011 and 2019 (the period before the COVID-19 pandemic) was applied. …”
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506
Two-dimensional source potentials in a two-fluid medium for the modified Helmholtz's equation
Published 1986-01-01“…Velocity potentials describing the irrotational infinitesimal motion of two superposed inviscid and incompressible fluids under gravity with a horizontal plane of mean surface of separation, are derived due to a vertical line source present in either of the fluids, whose strength, besides being harmonic in time, varies sinusiodally along its length. …”
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507
Supersymmetric Dyons, Superstrings, and Rotating Wormholes
Published 2022-01-01“…These solutions demonstrate the subtle relationship between the Yang-Mills and gravitational interactions, i.e., gauge/gravity duality.…”
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508
Graviton Signals in Central Production at the LHC
Published 2013-01-01“…Our analysis shows that the LHC with 14 TeV center of mass energy and 100 fb−1 (300 fb−1) of integrated luminosity can probe the effective gravity scale up to 3.6 TeV (4.4 TeV) in both the dilepton and diphoton channels.…”
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509
PRESENT-DAY MISSION PARTNERSHIPS
Published 2019-12-01“… The centre of gravity of the church and of mission-sending has shifted from the North and West to the South and East. …”
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510
Abundant Symmetry-Breaking Solutions of the Nonlocal Alice–Bob Benjamin–Ono System
Published 2020-01-01“…The Benjamin–Ono equation is a useful model to describe the long internal gravity waves in deep stratified fluids. In this paper, the nonlocal Alice–Bob Benjamin–Ono system is induced via the parity and time-reversal symmetry reduction. …”
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511
The $$(1+3)$$ ( 1 + 3 ) -dimensional ‘quantum principle of relativity’ is Einstein’s principle of relativity
Published 2025-01-01“…Abstract We show that the $$(1+3)$$ ( 1 + 3 ) -dimensional ‘superboost’ operators, proposed in Dragan and Ekert’s most recent work on superluminal reference frames (Dragan et al. in Class Quantum Gravity 40(2): 025013, 2023), are simply the canonical Lorentz boosts, expressed in nonstandard notation. …”
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512
Binary mixture convection in a horizontal channel under the Soret effect action
Published 2024-01-01“…With the help of the constructed solution for the mentioned boundary value problem the effect of layer thickness, given flow rate and action of gravity force on the separation process, is analysed.…”
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513
Characterization of Scoria Rock from Kisoro As an Aggregate in Concrete.
Published 2023“…The other physical properties of the scoria such as bulk density, specific gravity and absorption indicated that samples from Kisoro gave acceptable results.…”
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Thesis -
514
Design and Construction of a Free Energy Generator.
Published 2024“…The permanent magnets have invisible and continuous power where it can attract the iron or other specific kind of metal with the energy flow which allows the permanent magnet to defy the gravity for years. Therefore, it is believed that the free energy can be extracted from the permanent magnets by arranging them in a special configuration.…”
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Thesis -
515
Microstructure and Continuous Phase Transition of the Einstein-Gauss-Bonnet AdS Black Hole
Published 2020-01-01“…These results perhaps provide some certain help to deeply explore the black hole microscopic structure and to build the quantum gravity.…”
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516
Dynamic Model and Quantitative Analysis of Stick-Slip Vibration in Horizontal Well
Published 2020-01-01“…The drillstring-borehole impact and friction, fluid-structure interaction, bit-rock interaction, and gravity are considered in this model. The influence of axial and torsional excitation on stick-slip is analyzed. …”
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517
Some Bianchi Type Viscous Holographic Dark Energy Cosmological Models in the Brans–Dicke Theory
Published 2022-01-01“…In this article, we analyze Bianchi type–II, VIII, and IX spatially homogeneous and anisotropic space-times in the background of the Brans–Dicke theory of gravity within the framework of viscous holographic dark energy. …”
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518
Isolated zeros destroy Fermi surface in holographic models with a lattice
Published 2020-01-01“…Abstract We study the fermionic spectral density in a strongly correlated quantum system described by a gravity dual. In the presence of periodically modulated chemical potential, which models the effect of the ionic lattice, we explore the shapes of the corresponding Fermi surfaces, defined by the location of peaks in the spectral density at the Fermi level. …”
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519
Biomass Estimation of Dry Tropical Woody Species at Juvenile Stage
Published 2012-01-01“…The models including wood-specific gravity (𝜌) exhibited higher 𝑅2 than those without 𝜌. …”
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520
Lipids Characterization and Industrial Potentials of Pumpkin Seeds (Telfairia occidentalis) and Cashew Nuts (Anacardium occidentale)
Published 2011-01-01“…The physicochemical parameters of Telfaria occidentalis and Anarcardium occidentale seeds were; boiling point; (58.90, 62.60 °C), melting point; (18.50, 21.80 °C), refractive index; (1.462, 1.498), specific gravity; (0.87, 0.69) saponification value; (91.16, 92.57) iodine value; (51.52, 47.20), acid value; (0.76, 3.74) ester value; (90.40, 88.87), % free fatty acid; (.38, 1.88) and peroxide value; (11.75, 15.23) respectively. …”
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