Results 31 to 40 of about 17,553,550 (282)
Effect of microchannel aspect ratio on residence time distributions and the axial dispersion coefficient [PDF]
, 2009 The effect of microchannel aspect ratio (channel depth/channel width) on residence time distributions and the axial dispersion coefficient have been investigated for Newtonian and shear thinning non-Newtonian flow using computational fluid dynamics.
Prat, Laurent E. +4 more
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Residence time in micro-tidal basins [PDF]
, 2022 To evaluate water quality, it is possible to use hydrodynamic indicators, instead of ecological models; the most widely used are some characteristic times-scale. Among them, in this work, residence time is considered.
Penzo, Nicola
core
Stability Analysis and Synthesis for 2-D Switched Systems with Random Disturbance
Mathematics, 2022 In this paper, the stability analysis and controller design of two-dimensional (2-D) switched system with random disturbances are studied. First, based on the Fornasini–Marchesini local state space model, a random discrete 2-D switched system model is ...
Fei Meng, Xuyu Shen, Xiaofeng Li
doaj +1 more source
Ecotoxicology and Environmental Safety, 2021 Microplastic (MP) pollution and the related impacts on aquatic species have drawn worldwide attention. However, knowledge of the kinetic profiles of MPs in fish remains fragmentary.
Yangqing Liu +6 more
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A novel approach for accurate quantification of lake residence time — Lake Kinneret as a case study
Water Research X, 2022 Water residence time, which is affected by increasing water demands and climate change, plays a crucial role in lakes and reservoirs since it influences many natural physical and ecological processes that eventually impact the water quality of the ...
Yael Gilboa +3 more
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Numerical Study of the Effect of a Power-law Fluid Flow Structures on Levels of Mixing in a Taylor Couette Configuration [PDF]
Journal of Applied Fluid Mechanics, 2023 This work is a numerical study on the effects of the flow structures of the power-law fluid between two concentric cylinders with an upward laminar axial flow on levels of mixing and mean residence time through the Taylor Couette system.
S. Khali, R. Nebbali
doaj +1 more source
Agronomy, 2019 Biochar has been shown as a potential mean to enhance carbon sequestration in the soil. In Brazil, approximately 15% of the produced charcoal is discarded as charcoal fines, which are chemically similar to biochar.
Otávio dos Anjos Leal +6 more
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A fluid-mechanics based classification scheme for surface transient storage in riverine environments: quantitatively separating surface from hyporheic transient storage [PDF]
Hydrology and Earth System Sciences, 2013 Surface transient storage (STS) and hyporheic transient storage (HTS) have functional significance in stream ecology and hydrology. Currently, tracer techniques couple STS and HTS effects on stream nutrient cycling; however, STS resides in localized ...
T. R. Jackson, R. Haggerty, S. V. Apte
doaj +1 more source
An improved model of continuous leaching systems using segregation approach [PDF]
International Journal of Mining and Geo-Engineering, 2020 In this study, a simplified dissolution model has been developed to evaluate the performance of continuous leaching reactors. The model considers continuous reduction of the surface area of particles using the distribution of their size and residence ...
Abdolrahim Foroutan +3 more
doaj +1 more source
On mean residence times in compartments [PDF]
Mathematical Biosciences, 1981 Abstract This paper is concerned with a set of parameters which measure the mean time a random particle resides in individual compartments in response to a given load distribution. These parameters are related to other time parameters and to each other.
openaire +1 more source