Results 21 to 30 of about 12,854,723 (342)

Gravitational Wave Glitches in Chaotic Extreme-Mass-Ratio Inspirals. [PDF]

open access: yesPhysical Review Letters, 2021
The Kerr geometry admits the Carter symmetry, which ensures that the geodesic equations are integrable. It is shown that gravitational waveforms associated with extreme-mass-ratio inspirals involving a nonintegrable compact object display "glitch ...
K. Destounis, A. Suvorov, K. Kokkotas
semanticscholar   +1 more source

Dynamic Response Analysis of Mega-Sub Isolated Structures under Multiaxial Earthquakes

open access: yesApplied Sciences, 2023
With the use of seismic isolation techniques on mega-sub structures, several scholars have carried out research on them. However, little research has been carried out on mega-sub isolated structures under multiaxial earthquakes. There have been instances
Xueyuan Yan   +4 more
doaj   +1 more source

Two Contact Binaries with Mass Ratios Close to the Minimum Mass Ratio [PDF]

open access: yesAstrophysical Journal, 2021
The cutoff mass ratio is under debate for contact binaries. In this paper, we present the investigation of two contact binaries with mass ratios close to the low mass ratio limit.
K. Li   +7 more
semanticscholar   +1 more source

Strength test and penetration effect of intrusion surface of heavy metal contaminated soft rock

open access: yesJournal of Applied Science and Engineering, 2021
The progressive expansion and contraction damage caused by heavy metal intrusion into rocks is one of causes to the collapse of rock slopes. Based on the shear strength test, point load test, disintegration resistance test, durability test, and ...
Feng Cheng   +5 more
doaj   +1 more source

Experimental Study on the Droplet Size and Charge-to-Mass Ratio of an Air-Assisted Electrostatic Nozzle

open access: yesAgriculture, 2022
An air-assisted electrostatic nozzle uses a combination of air-assisted atomization and electrostatic spray technology. This article optimizes the existing air-assisted electrostatic nozzles in terms of structural design to obtain a higher charge-to-mass
Shiqun Dai   +9 more
semanticscholar   +1 more source

Mass-ratio and Magnetic Flux Dependence of Modulated Accretion from Circumbinary Disks [PDF]

open access: yesAstrophysical Journal, 2021
Accreting supermassive binary black holes (SMBBHs) are potential multimessenger sources because they emit both gravitational-wave and electromagnetic (EM) radiation.
S. Noble   +6 more
semanticscholar   +1 more source

Energy Conversion Efficiency of Wavy Conical Wind Energy Capture Structure

open access: yesShanghai Jiaotong Daxue xuebao, 2023
In order to improve the energy harvesting efficiency of the wind energy capture structure, this paper proposes a novel wavy conical bladeless wind energy capture structure, and establishes a mathematical model for energy conversion of the wavy conical ...
ZOU Lin, YAN Yulong, TAO Fan, LIU Diwei, ZHENG Yunlong
doaj   +1 more source

Study on Parameterization of Vortex-Induced Vibration Energy Harvester in Agricultural Environment

open access: yesAgriEngineering, 2020
In many special agricultural environments, many wireless sensors have a problem of power supply selection. Energy harvesting in the agricultural environment based on vortex-induced vibration (VIV) has the potential to solve the problem. In this paper, an
Zhangyi Liao, Anping Xiong, Renxin Liu
doaj   +1 more source

Proton-electron mass ratio from laser spectroscopy of HD+ at the part-per-trillion level [PDF]

open access: yesScience, 2020
A very precise ratio The value of the ratio of the masses of the proton and the electron has a bearing on the values of other physical constants. This ratio is known to a very high precision. Patra et al. improved this precision even further by measuring
S. Patra   +9 more
semanticscholar   +1 more source

Research on the ratio of multicomponent emulsion flooding system

open access: yesFrontiers in Energy Research, 2023
In recent years, field test and industrialized application of ASP (alkaline/surfactant/polymer) flooding has been carried out in oilfields, which has obtained an obvious effect on increasing oil and decreasing water and good economic efficiency. However,
Man Zhiqiang, Man Zhiqiang, Wu Wenxiang
doaj   +1 more source

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