Estimating the self‐thinning boundary line for oak mixed forests in central China by using stochastic frontier analysis and a proposed variable density model
Sign Up to like & getrecommendations! Published in 2022 at "Ecology and Evolution"
DOI: 10.1002/ece3.9064
Abstract: Abstract A suitable self‐thinning model is fundamental to effective density control and management. Using data from 265 plot measurements in oak mixed forests in central China, we demonstrated how to estimate a suitable self‐thinning line… read more here.
Keywords: density; mixed forests; oak mixed; model ... See more keywords
Accelerated whole‐heart MR angiography using a variable‐density poisson‐disc undersampling pattern and compressed sensing reconstruction
Sign Up to like & getrecommendations! Published in 2018 at "Magnetic Resonance in Medicine"
DOI: 10.1002/mrm.26730
Abstract: To accelerate whole‐heart three‐dimension MR angiography (MRA) by using a variable‐density Poisson‐disc undersampling pattern and a compressed sensing (CS) reconstruction algorithm, and compare the results with sensitivity encoding (SENSE). read more here.
Keywords: using variable; variable density; density poisson; whole heart ... See more keywords
Comparison of uniform‐density, variable‐density, and dual‐density spiral samplings for multi‐shot DWI
Sign Up to like & getrecommendations! Published in 2023 at "Magnetic Resonance in Medicine"
DOI: 10.1002/mrm.29633
Abstract: To compare the performances of uniform‐density spiral (UDS), variable‐density spiral (VDS), and dual‐density spiral (DDS) samplings in multi‐shot diffusion imaging, and determine a sampling strategy that balances reliability of shot navigator and overall DWI image… read more here.
Keywords: uniform density; density; density spiral; dual density ... See more keywords
One-dimensional turbulence investigation of variable density effects due to heat transfer in a low Mach number internal air flow
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Heat and Fluid Flow"
DOI: 10.1016/j.ijheatfluidflow.2019.108481
Abstract: Abstract A novel spatial formulation of the One-Dimensional Turbulence (ODT) model is applied to a vertical pipe-flow with heat transfer, analogous to the Direct Numerical Simulation (DNS) performed by Bae et al. [Phys. Fluids 18, (075102)… read more here.
Keywords: variable density; low mach; formulation; number ... See more keywords
Experimental and numerical study on the temperature uniformity of a variable density alternating obliquely truncated microchannel
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Heat and Mass Transfer"
DOI: 10.1016/j.ijheatmasstransfer.2021.121440
Abstract: Abstract Microchannels with liquid coolants have shown great potential in the high heat flux electronics cooling due to their enhanced heat dissipation capacity. The excessive temperature gradient along the streamwise induces significant thermal mismatch stresses… read more here.
Keywords: heat; microchannel; temperature uniformity; temperature ... See more keywords
A clustering framework based on FCM and texture features for denoising ESPI fringe patterns with variable density
Sign Up to like & getrecommendations! Published in 2019 at "Optics and Lasers in Engineering"
DOI: 10.1016/j.optlaseng.2019.03.015
Abstract: Abstract Denoising of electronic speckle pattern interferometry (ESPI) fringe patterns with variable density is challenging. In this paper, we present a method to denoise ESPI fringe patterns with variable density by constructing a clustering framework.… read more here.
Keywords: variable density; density; density fringes; patterns variable ... See more keywords
Extracting a mixing parameter from 2D radiographic imaging of variable-density turbulent flow
Sign Up to like & getrecommendations! Published in 2020 at "Physica D: Nonlinear Phenomena"
DOI: 10.1016/j.physd.2020.132354
Abstract: Abstract We extract a suitably averaged fluctuating density from the two-dimensional radiographic image of a flow. The X-ray attenuation is given by the Beer–Lambert law which exponentially damps the incident beam intensity by a factor… read more here.
Keywords: variable density; density; parameter; extracting mixing ... See more keywords
Numerical study of variable density turbulence interaction with a normal shock wave
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2017.542
Abstract: Accurate numerical simulations of shock–turbulence interaction (STI) are conducted with a hybrid monotonicity-preserving–compact-finite-difference scheme for a detailed study of STI in variable density flows. Theoretical and numerical assessments of data confirm that all turbulence scales… read more here.
Keywords: variable density; turbulence; density; shock wave ... See more keywords
How to get the best out of your fingerprint database: hierarchical fingerprint indoor positioning for databases with variable density
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Access"
DOI: 10.1109/access.2019.2939545
Abstract: In this paper, we consider wireless positioning using Received Signal Strength (RSS) fingerprinting. To obtain good accuracy, this technique requires a database containing a high density of up-to-date fingerprints. However, as acquiring fingerprints through training… read more here.
Keywords: variable density; fingerprint database; algorithm; fingerprint ... See more keywords
Global existence and stability of a class of nonlinear evolution equations with hereditary memory and variable density
Sign Up to like & getrecommendations! Published in 2019 at "Boundary Value Problems"
DOI: 10.1186/s13661-019-1152-x
Abstract: AbstractIn this paper, we consider the initial boundary value problem of nonlinear evolution equation with hereditary memory, variable density, and external force term {|ut|ρutt−αΔu−Δutt+∫−∞tμ(t−s)Δu(s)ds−γΔut=f(u),(x,t)∈Ω×R+,u(x,t)=0,(x,t)∈∂Ω×R+,u(x,0)=u0(x),ut(x,0)=u1(x),x∈Ω. $$\begin{aligned} \textstyle\begin{cases} \vert u_{t} \vert ^{\rho }u_{tt}-\alpha \Delta u-\Delta u_{tt}+\int_{-\infty }… read more here.
Keywords: hereditary memory; nonlinear evolution; memory variable; stability ... See more keywords