Velocity and velocity bounds in static spherically symmetric metrics
We find simple expressions for velocity of massless particles in dependence of the distance $r$ in Schwarzschild coordinates. For massive particles these expressions put an upper bound for the velocity.
Arraut, I., Batic, D., Nowakowski, M.
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A Study on the Two-Dimensional Numerical Simulation of Wing Flutter in a Heavy Gas
Using heavy gases in wind tunnel tests can reduce model weight issues, which have intensified with advancements in high-performance aircraft technology. This study employs time-domain analysis to examine the flutter characteristics and correction methods
Zhe Hu, Shun He, Bo Lu, Jun Zha
doaj +1 more source
Hydrodynamics affected by submerged vegetation with different flexibility under unidirectional flow
Submerged vegetation changes the hydrodynamic characteristics of rivers, lakes, wetlands, and coastal zones. However, only a few studies have focused on the effect of flexible submerged vegetation on hydrodynamic characteristics under unidirectional flow.
Chenhui Wu +9 more
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Empirical Analysis of Recent Advances, Characteristics and Challenges of Big Data [PDF]
Here in this study, we provide an empirical analysis of recent advances, characteristic and challenges of big data. Initially, we acquaint the readers with the general background, history, and characteristics of big data including volume, velocity, value
Burhanullah Khattak +5 more
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Velocity Field Statistics in Star-Forming Regions. I. Centroid Velocity Observations
The probability density functions (pdfs) of molecular line centroid velocity fluctuations and fluctuation differences at different spatial lags are estimated for several nearby molecular clouds with active internal star formation.
Beichman C. A. +27 more
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Velocity profiles in strongly turbulent Taylor-Couette flow [PDF]
We derive the velocity profiles in strongly turbulent Taylor-Couette flow for the general case of independently rotating cylinders. The theory is based on the Navier-Stokes equations in the appropriate (cylinder) geometry.
Chao Sun +3 more
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The Prevalence of Gas Outflows in Type 2 AGNs. II. 3D Biconical Outflow Models
We present 3D models of biconical outflows combined with a thin dust plane for investigating the physical properties of the ionized gas outflows and their effect on the observed gas kinematics in type 2 active galactic nuclei (AGNs). Using a set of input
Bae, Hyun-Jin, Woo, Jong-Hak
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Tidal influence on Rutford Ice Stream, West Antarctica: observations of surface flow and basal processes from closely-spaced GPS and passive seismic stations [PDF]
High-resolution surface velocity measurements and passive seismic observations from Rutford Ice Stream, West Antarctica, 40 km upstream from the grounding line are presented.
A.E. Behar +11 more
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A machine learning driven automated system for safety data sheet indexing
Safety Data Sheets (SDS) are foundational to chemical management systems and are used in a wide variety of applications such as green chemistry, industrial hygiene, and regulatory compliance, among others within the Environment, Health, and Safety (EHS ...
Aatish Suman +4 more
doaj +1 more source
High velocity spikes in Gowdy spacetimes
We study the behavior of spiky features in Gowdy spacetimes. Spikes with velocity initially high are, generally, driven to low velocity. Let n be any integer greater than or equal to 1.
A. Rendall +13 more
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