Results 21 to 30 of about 29,239 (203)

Filtration-equipped ballast water management systems as practical infrastructure for marine microplastic mitigation

Frontiers in Marine Science
Microplastics are pervasive contaminants in marine environments and are increasingly recognized as a risk to marine ecosystems and to human health. Because ships take up and discharge large volumes of seawater, ballast water has been identified as a ...
Hyung-Gon Cha, Pung-Guk Jang, Min-Chul Jang, Kyoungsoon Shin, Woo-Jin Lee, Jin-Young Seo, Bonggil Hyun   +6 more
doaj   +1 more source

Enhanced rates of particulate organic matter remineralization by microzooplankton are diminished by added ballast minerals [PDF]

, 2013
To examine the potentially competing influences of microzooplankton and calcite mineral ballast on organic matter remineralization, we incubated diatoms in darkness in rolling tanks with and without added calcite minerals (coccoliths) and ...
Le Moigne, F.A.C., De La Rocha, C., De La Rocha, C. L., de La Rocha, Christina, L., Le Moigne, F., M. Gallinari, Le Moigne, Frédéric A.C., Laurenceau, E., C. L. De La Rocha, Gallinari, Morgane, F. A. C. Le Moigne, Le Moigne, Frederic A. C., Le Moigne, F. A. C., E. Laurenceau, De La Rocha, C.L., Gallinari, M.   +15 more
core   +2 more sources

mstudiva/SCTLD-ballast-transmission: Stony coral tissue loss disease ballast water transmission and treatment

, 2022
First release associated with the submission of the manuscript "Transmission of stony coral tissue loss disease (SCTLD) in simulated ballast water confirms the potential for ship-born ...
Michael-Studivan
core   +1 more source

Influence of Dominant Phytoplankton Species on Disinfection By-Product Formation During Active-Substance Ballast Water Treatment: Skeletonema costatum vs. Akashiwo sanguinea

Journal of Marine Science and Engineering
Active substance-based Ballast Water Management Systems (BWMS) can generate disinfection by-products (DBPs) by reacting with dissolved organic matter (DOM). However, current IMO G9-based assessments often overlook qualitative DOM variations.
Hyung-Gon Cha, Bonggil Hyun, Jin-Young Seo, Min-Chul Jang, Woo-Jin Lee, Kyoungsoon Shin, Pung-Guk Jang   +6 more
doaj   +1 more source

Analysis of the Dynamic Wheel Loads in Railway Transition Zones Considering the Moisture Condition of the Ballast and Subballast

Applied Sciences, 2017
Transition zones in railway tracks are the locations with considerable changes in vertical support structures, e.g., near bridges. Due to possible water flow constrictions in transition zone structures, there is frequently an increased moisture level in ...
Haoyu Wang, Mika Silvast, Valeri Markine, Bruce Wiljanen   +3 more
doaj   +1 more source

Simulated Testing of the Characteristics and Environmental Impacts of Disinfection By-Products Generated by Ballast Water Management Systems in Ports during Phytoplankton Blooms

Journal of Marine Science and Engineering
Ballast water management systems (BWMSs) using active substances (AS) have been subjected to land-based tests with artificially increased dissolved organic matter (DOM) and cultured species according to the International Maritime Organization G9 ...
Hyung-Gon Cha, Bonggil Hyun, Min-Chul Jang, Keun-Hyung Choi, Kyoungsoon Shin, Jin-Young Seo, Pung-Guk Jang   +6 more
doaj   +1 more source

DEM-FDM Coupled Numerical Study on the Reinforcement of Biaxial and Triaxial Geogrid Using Pullout Test

Applied Sciences, 2021
The key to modeling the interlocking of geogrid-reinforced ballast is considering both the continuous deformation characteristics of the geogrid and the discontinuity of the ballast particles.
Jianjun Fu, Junfeng Li, Cheng Chen, Rui Rui   +3 more
doaj   +1 more source

A Systemic Model for Understanding Business Interactions With Biodiversity and Ecosystems

Business 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, Giacomo Pigatto, Andrea Tenucci   +2 more
wiley   +1 more source

Utilization of 60/70 penetration grade asphalt on ballast structures with the variation of percentage and the number of pouring layers

Journal of the Mechanical Behavior of Materials, 2019
Railroad ballast structure layer may experience a decline in mechanical and geometrical performance due to heavy train and environmental loads. In order to improve the quality of ballast structure, the addition of asphalt to ballast layer can be ...
Setiawan Dian M.
doaj   +1 more source

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

Biology, 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, Vasily V. Malyar, Victoria V. Pankova, Jin-Woo Choi, Seungshic Yum, James T. Carlton   +5 more
doaj   +1 more source