Results 61 to 70 of about 129,371 (270)

Searching for a Home Port in a Polyvectic World: Molecular Analysis and Global Biogeography of the Marine Worm Polydora hoplura (Annelida: Spionidae)

open access: yesBiology, 2023
The spionid polychaete Polydora hoplura Claparède, 1868 is a shell borer widely occurring across the world and considered introduced in many areas. It was originally described in the Gulf of Naples, Italy.
Vasily I. Radashevsky   +5 more
doaj   +1 more source

Microorganisms in ballast water: Disinfection, community dynamics, and implications for management.

open access: yesScience of the Total Environment, 2019
Increasing concerns have accelerated the development of international regulations and methods for ballast water management to limit the introduction of non-indigenous species.
Ole-Kristian Hess-Erga   +3 more
semanticscholar   +1 more source

The variation of load diffusion and ballast bed deformation with loading condition: an experiment study

open access: yesInternational Journal of Rail transportation, 2021
Ballast bed deformation is significantly influenced by its internal stress state. However, investigations concerning ballast bed deformation focus mainly on the deformation behaviour under various external loading conditions or ballast states, where the ...
Longlong Fu   +4 more
semanticscholar   +1 more source

A Systemic Model for Understanding Business Interactions With Biodiversity and Ecosystems

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Biodiversity loss and ecosystem degradation represent critical threats to human well‐being and economic resilience, challenging businesses to understand and manage their interdependence with natural systems. This study develops a systemic framework—the BioModel—that elucidates the reciprocal relationship between businesses, biodiversity, and ...
Lino Cinquini   +2 more
wiley   +1 more source

Feasibility studies in relation to the IMO Ballast Water Convention [PDF]

open access: yes, 2009
This project is aimed to develop possibilities to overcome the difficulties which arise from the implementation of the Ballast Water Convention (IMO 2004).
Kaag, N.H.B.M.   +2 more
core   +1 more source

Exceptions and exemptions under the ballast water management convention - Sustainable alternatives for ballast water management?

open access: yesJournal of Environmental Management, 2021
The International Convention for the Control and Management of Ships' Ballast Water and Sediments (BWM Convention) aims to mitigate the introduction risk of harmful aquatic organisms and pathogens (HAOP) via ships' ballast water and sediments.
Okko Outinen   +11 more
semanticscholar   +1 more source

Evaluation of Modeling Assumptions for Predicting Structural Damage and Train Derailment Under Earthquake Loading

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT The rapid development of new railway networks and the aging of existing infrastructure in seismic‐prone regions continue to motivate the need for efficient methods to simulate the dynamic behavior of coupled train track structure systems. While detailed train–structure interaction (TSI) models can capture complex mechanisms, they are often too
Miguel A. Gomez, Matthew J. DeJong
wiley   +1 more source

Desempenho operacional de trator com e sem o acionamento da tração dianteira auxiliar Operational performance of a tractor with and without the use of wheel assist drive

open access: yesPesquisa Agropecuária Brasileira, 1999
Entre os fatores que podem influenciar o desempenho de tração do trator agrícola, destacam-se a pressão de inflação e a carga sobre o rodado motriz. Neste trabalho, o objetivo foi avaliar, em situação de campo, a influência dos fatores inflação (sob ...
Kiyoshi Yanai   +4 more
doaj   +1 more source

Metabolic and cometabolic degradation of herbicides in the fine material of railway ballast [PDF]

open access: yes, 2006
Microbial degradation of 3-(3,4-dichlorophenyl)-1,1-dimethylurea (diuron) and mineralization of 4-chloro-2-methylphenoxyacetic acid (MCPA) were studied in soil samples taken from the ballast layers of three Swedish railway embankments. The degradation of
Börjesson, Elisabet   +3 more
core   +1 more source

Combining the Underwater Vision Profiler 6 with sediment traps to measure in situ velocity of marine particles

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Particles sinking from the surface to the deep ocean play a key role in the biological carbon pump, whose efficiency depends partly on sinking velocities. Over the last decade, in situ imaging has enabled critical advances in our understanding of particle dynamics in the ocean.
Manon Laget   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy