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Implications of network particle tracking (NPT) for ecological model interpretation

Ecological Modelling, 2009
Abstract Network particle tracking (NPT), building on the foundation of network environ analysis (NEA), is a new development in the definition of coherence relations within and between connected systems. This paper evaluates three ecosystem models in a comparison of throughflow- and storage-based NEA and NPT. Compartments in models with high indirect
Bernard C. Patten   +3 more
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Purification Effect on Particle Size of Matrix in Ecological Filter Bed

Applied Mechanics and Materials, 2012
In order to study the purification effect on the particle size of matrix in ecological filter bed, four ecological filter bed units with different particle sizes (0~2mm, 2~15mm, 15~30mm, 30~50mm) are designed to purify the polluted river water. Results show that the particle size of matrix has considerable influence on the polluted river water quality ...
Ping Yang, Ming Tao Zhou, Huan Hu
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Termite soil preferences and particle selections: strategies related to ecological requirements

Insectes Sociaux, 2002
At the Lamto Savanna Ecological Station (Cote d'Ivoire), Odontotermes nr. pauperans (Termitidae, Macrotermitinae) was observed to build mounds enriched with fine particles. Using laboratory experiments we studied the selection of building materials by worker termites offered soil from two contrasting horizons: superficial soil (15-20 cm) and a deeper ...
Michel Lepage   +2 more
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Plastic particles in soil: state of the knowledge on sources, occurrence and distribution, analytical methods and ecological impacts

Environmental Science: Processes & Impacts, 2021
Increased production and use of plastics has resulted in growth in the amount of plastic debris accumulating in the environment, potentially fragmenting into smaller pieces.
Jake W. O'Brien   +11 more
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A novel ecological particle swarm optimization algorithm and its population dynamics analysis

Applied Mathematics and Computation, 2008
This paper presents a novel particle swarm optimization algorithm from the angle of ecological population evolution, called the ecological particle swarm optimization, or EPSO. Initially, ecological population competition model (EPCM) is presented. From the basis of the EPCM, the EPSO algorithm and its general framework are proposed; in which particle ...
Lei Wang, Qi Kang, Qidi Wu, Qidi Wu
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Individual particle measurements to monitor ecological processes in the Indian River Lagoon, FL

Ocean Sensing and Monitoring X, 2018
Suspended particles are important components of coastal marine ecosystems that are often the target of environmental sensing efforts (e.g. harmful algae blooms, suspended sediments). Automated measurements of individual particles provide advantages over traditional manual methods of particle analysis and sensors that measure bulk water properties ...
Malcolm N. McFarland   +2 more
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Multi-Reservoir Ecological Operation Using Multi-Objective Particle Swarm Optimization

Applied Mechanics and Materials, 2014
Traditional reservoir operation ignores ecological demands of rivers. This would probably lead to degradation of river ecosystem. In order to alleviate the influence of reservoirs on river ecosystem, multi-objective reservoir ecological operation was proposed from perspective of maintaining the river ecosystem health. Multi-objective mathematical model
Li Na Liu, Wei Lin Liu
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Sedimentary particle sizes and the ecological grain of food resources for meiobenthic copepods

Estuarine, Coastal and Shelf Science, 1986
Abstract On average, sand particles larger than 300 μm have at least one large smooth facet on their surfaces on which the epifloral food of meiobenthic copepods is distributed as a coarse-grained ecological resource. Sand particles smaller than 300 μm have irregular surfaces composed of pits, faults and encrustations in which food organisms are ...
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