Results 1 to 10 of about 311,826 (328)

Editorial: Mechanisms and ecology of suspended-particle capture in marine systems

Frontiers in Marine Science
Jeff Shimeta, Marco Ghisalberti, Nicole Rita Posth, Stuart Humphries   +3 more
doaj   +3 more sources

Particles, environments, and possible ecologies in the Jovian atmosphere [PDF]

The Astrophysical Journal Supplement Series, 1976
The eddy diffusion coefficient is estimated as a function of altitude, separately for the Jovian troposphere and mesosphere. Complex organic molecules produced by the Ly alpha photolysis of methane may possibly be the absorbers in the lower mesosphere which account for the low reflectivity of Jupiter in the near ultraviolet.
Carl Sagan, Edwin E. Salpeter
  +5 more sources

'DIS_turbation': An Artistic Approach to Foster Nature-Connectedness [PDF]

Journal of Science and Technology of the Arts, 2021
This paper presents practice-based research on ecoacoustics, ocean soundscapes and anthropogenic noise. It explores creative strategies to the introduction, experience and performance of ocean soundscapes in artistic creation.
Francisca Rocha Gonçalves, Rui Penha
doaj   +3 more sources

Particle motion: the missing link in underwater acoustic ecology [PDF]

Methods in Ecology and Evolution, 2016
Summary Sound waves in water have both a pressure and a particle‐motion component, yet few studies of underwater acoustic ecology have measured the particle‐motion component of sound. While mammal hearing is based on detection of sound pressure, fish and invertebrates (i.e. most aquatic animals) primarily sense sound using particle motion.
Nedelec, S.L., Campbell, J.A., Radford, A.N., Simpson, S.D., Merchant, N.D.   +4 more
openaire   +6 more sources

Transition probabilities for general birth-death processes with applications in ecology, genetics, and evolution [PDF]

J Math Biol, 65:553-580, 2012, 2011
A birth-death process is a continuous-time Markov chain that counts the number of particles in a system over time. In the general process with $n$ current particles, a new particle is born with instantaneous rate $\lambda_n$ and a particle dies with instantaneous rate $\mu_n$.
A Cuyt, AS Novozhilov, B Dennis, B Klar, C Craviotto, D Levin, DG Kendall, E Renshaw, F Guillemin, Forrest W. Crawford, G Bordes, GU Yule, H Taylor, HS Wall, IJ Thompson, J Abate, J Abate, J Abate, J Abate, J Thorne, JA Murphy, JD Bankier, JFC Kingman, JFC Kingman, L Lorentzen, M Mederer, Marc A. Suchard, MEH Ismail, NTJ Bailey, OP Sharma, P Donnelly, P Flajolet, PAP Moran, PR Parthasarathy, PR Parthasarathy, S Karlin, S Karlin, S Karlin, S Karlin, S Karlin, S Mohanty, SI Rosenlund, SM Krone, W Feller, W Grassmann, WC Allee, WH Press, WJ Lentz, WK Grassmann, WY Tan   +49 more
arxiv   +3 more sources

Modeling of small sea floaters in the central Mediterranean Sea: seasonality of at-sea distributions [PDF]

arXiv, 2018
Floating marine debris represent a threat to marine and coastal ecology. Since the Mediterranean basin is one of the highly impacted regions, both by the coastal pollution as well as from sea traffic, the potential harm of a floating pollution on the marine ecology could be overwhelming in this area.
Kumkar, Yogesh, Shchekinova, Elena
arxiv   +5 more sources

Ecological non-linear state space model selection via adaptive particle Markov chain Monte Carlo (AdPMCMC) [PDF]

arXiv, 2010
We develop a novel advanced Particle Markov chain Monte Carlo algorithm that is capable of sampling from the posterior distribution of non-linear state space models for both the unobserved latent states and the unknown model parameters. We apply this novel methodology to five population growth models, including models with strong and weak Allee effects,
Hayes, Keith R., Hosack, Geoff R., Peters, Gareth W.   +2 more
arxiv   +3 more sources

The Particle Swarm Differential Evolution Algorithm for Ecological Sensor Network Coverage Optimization

Journal of Intelligent Systems, 2016
The problem of coverage optimization is the challengingly important and key part in the research and application of ecology sensor network related with the ecological monitoring of Poyang Lake.
Xu Xing, Hu Na, Ying Weiqin, Wu Yu, Zhou Yang   +4 more
doaj   +3 more sources

Tracer-based investigation of organic aerosols in marine atmospheres from marginal seas of China to the northwest Pacific Ocean [PDF]

Atmospheric Chemistry and Physics, 2020
We investigated the geographic distributions of organic tracers in total suspended particles over the marginal seas of China, including the Yellow and Bohai seas (YBS) and the South China Sea (SCS), and the northwest Pacific Ocean (NWPO) in spring, when ...
T. Guo, Z. Guo, J. Wang, J. Feng, H. Gao, H. Gao, X. Yao, X. Yao   +7 more
doaj   +1 more source

Organosolv lignin particles as an ecological reagents in the Kupfershiefer copper ore flotation

Physicochemical Problems of Mineral Processing, 2023
Mineral separation relies heavily on the process of flotation. This study explored the feasibility of using organosolv lignin nanoparticles and microparticles (OLP) as a greener alternative to xanthates in the flotation process for mineral separation. Xanthates are widely used but pose environmental and health risks. The efficiency of OLP as collectors
Witecki, Kajetan, Szkurat, Monika, Hruzova, Katerina   +2 more
openaire   +2 more sources