Results 21 to 30 of about 257,394 (299)

Does residence time affect responses of alien species richness to environmental and spatial processes? [PDF]

open access: yes, 2012
One of the most robust emerging generalisations in invasion biology is that the probability of invasion increases with the time since introduction (residence time). We analysed the spatial distribution of alien vascular plant species in a region of north-
Dainese,Matteo   +5 more
core   +1 more source

Stability Analysis and Synthesis for 2-D Switched Systems with Random Disturbance

open access: yesMathematics, 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

Uptake and depuration kinetics of microplastics with different polymer types and particle sizes in Japanese medaka (Oryzias latipes)

open access: yesEcotoxicology 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
doaj   +1 more source

A novel approach for accurate quantification of lake residence time — Lake Kinneret as a case study

open access: yesWater 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
doaj   +1 more source

Numerical Study of the Effect of a Power-law Fluid Flow Structures on Levels of Mixing in a Taylor Couette Configuration [PDF]

open access: yesJournal 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

Mean residence time of soil organic matter associated with kaolinite and smectite [PDF]

open access: yes, 2003
To gain insight into the effect of clay mineralogy on the turnover of organic matter, we analysed the C-14 activity of soil organic matter associated with clay in soils dominated by kaolinite and smectite in natural savanna systems in seven countries ...
Wattel, J.T.   +4 more
core   +2 more sources

Charcoal Fine Residues Effects on Soil Organic Matter Humic Substances, Composition, and Biodegradability

open access: yesAgronomy, 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
doaj   +1 more source

An improved model of continuous leaching systems using segregation approach [PDF]

open access: yesInternational 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

A fluid-mechanics based classification scheme for surface transient storage in riverine environments: quantitatively separating surface from hyporheic transient storage [PDF]

open access: yesHydrology 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

Application of environmental tracers for investigation of groundwater mean residence time and aquifer recharge in fault-influenced hydraulic drop alluvium aquifers [PDF]

open access: yesHydrology and Earth System Sciences, 2019
Investigating groundwater residence time and recharge sources is crucial for water resource management in the alluvium aquifers of arid basins. Environmental tracers (chlorofluorocarbons, 3H, 14C, δ2H, δ18O) and groundwater hydrochemical components are ...
B. Ma   +7 more
doaj   +1 more source

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