Results 21 to 30 of about 390,506 (291)

Terminology as a key uncertainty in net land use and land cover change carbon flux estimates [PDF]

open access: yesEarth System Dynamics, 2014
Reasons for the large uncertainty in land use and land cover change (LULCC) emissions go beyond recognized issues related to the available data on land cover change and the fact that model simulations rely on a simplified and incomplete description of ...
J. Pongratz   +3 more
doaj   +1 more source

Experimental and theoretical analysis of exhaust manifold by uncoated and coated ceramics (Al2O3, TiO2 and ZrO2)

open access: yesCase Studies in Thermal Engineering, 2023
This research work focuses on the experimental and theoretical analysis of the exhaust manifold with novel ceramic coatings (TiO2 Coatings; ZrO2 coatings; and Al2O3 coatings) and these coatings were applied on the manifold by the plasma arc technique ...
K. Sunil Kumar   +7 more
doaj   +1 more source

Research on Residual Flux Measurement Method for Power Transformers

open access: yesJournal of Physics: Conference Series, 2023
Abstract The residual flux of power transformers is an important factor affecting the inrush current. In order to solve the problem of residual flux measurement of power transformers, this paper proposes an indirect measuring method of residual flux based on the first peak value of inrush current.
Haotian Chen   +5 more
openaire   +1 more source

On inferring isoprene emission surface flux from atmospheric boundary layer concentration measurements [PDF]

open access: yes, 2009
We examine the dependence of the inferred isoprene surface emission flux from atmospheric concentration on the diurnal variability of the convective boundary layer (CBL).
Dries, K., van den   +2 more
core   +3 more sources

Factors influencing the dissolution rate of residual DNAPL in unconnected pores based on PIV technology

open access: yes地质科技通报, 2023
Objective The leakage of dense nonaqueous phase liquids (DNAPL) with a density greater than that of water into the underground environment becomes a long-term pollution source.
Boyang Ruan   +3 more
doaj   +1 more source

Nonlinear parallel momentum transport in strong turbulence

open access: yes, 2015
Most existing theoretical studies of momentum transport focus on calculating the Reynolds stress based on quasilinear theory, without considering the \emph{nonlinear} momentum flux-$$.
Diamond, P. H., Wang, Lu, Wen, Tiliang
core   +1 more source

Background Subtraction Uncertainty from Submillimetre to Millimetre Wavelengths [PDF]

open access: yes, 2014
Photometric observations of galaxies at submillimetre to millimetre wavelengths (50 - 1000 GHz) are susceptible to spatial variations in both the background CMB temperature and CIB emission that can be comparable to the flux from the target galaxy.
Ferraro, Simone, Hensley, Brandon
core   +1 more source

Simulation of the remanence influence on the transient states in a single-phase multiwinding transformer

open access: yesArchives of Electrical Engineering, 2017
This paper presents the mathematical model of a single-phase multi-winding core type transformer taking into account magnetic hysteresis phenomenon based on the feedback Preisach model (FPM).
Wilk Andrzej, Michna Michał
doaj   +1 more source

A solution for the neutron diffusion equation in the spherical and hemispherical reactors using the residual power series

open access: yesFrontiers in Physics, 2023
A novel analytical solution to the neutron diffusion equation is proposed in this study using the residual power series approach for both spherical and hemispherical fissile material reactors.
Ahmad El-Ajou   +4 more
doaj   +1 more source

Comparison of Measured Residual Stress Distributions in Extra-Thick Butt Welds Joined by One-Pass EGW and Multipass FCAW

open access: yesAdvances in Mechanical Engineering, 2014
This study is to measure the welding residual stress distributions in a 70 mm-thick butt weld by one-pass electron gas welding using both the inherent strain method and neutron diffraction method, respectively.
Jeong-Ung Park   +4 more
doaj   +1 more source

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