Results 31 to 40 of about 56,979 (211)

Mathematical modeling of propulsion forces in shallow waters

open access: yesApplied Ocean Research
We present a modular mathematical model to predict maneuvering motions under deep and shallow water conditions. Based on the model of Gronarz (1997), our model implicitly accounts for hull–propulsion interaction.
Jakob Rzeszutko   +2 more
doaj   +1 more source

U.S. Waterways Experiment Station Reports [PDF]

open access: yes, 1947
Series of pile loading tests performed on the Morganza Floodway control structure to determine the most economic way to support the foundation in the compressible underlying soils.
Waterways Experiment Station (U.S.)
core  

Species, sampling method and location affect eel eDNA detection in a turbid lowland lake [PDF]

open access: yesMetabarcoding and Metagenomics
Biodiversity is declining in freshwater ecosystems, increasing the need for efficient monitoring tools. Environmental DNA (eDNA) is a powerful approach for detecting aquatic species, but sampling methodology can influence detection outcomes.
Georgia Thomson-Laing   +5 more
doaj   +3 more sources

Asymmetric morphodynamics of the Wadden Sea

open access: yesCommunications Earth & Environment
Shallow coastal systems with tidal flats and barrier islands are valuable assets to coastal protection and unique habitats with thriving biodiversity. Sea level rise threatens to diminish these systems unless sediment accretion compensates submergence ...
Diego Pineda Leiva   +4 more
doaj   +1 more source

Part III - Ch 2 Dimensions of waterways

open access: yes, 2021
Rivers, Ports, Waterways and Dredging ...
Verheij, H.J. (author)   +4 more
core  

Rancang Bangun Monitoring Tumpukan Sampah Pada Saluran Air Berbasis Long Range

open access: yesPatria Artha Technological Journal, 2022
A water channel is a building made for the process of draining water. The water channel will drain water from a high place to a lower place. Waterways are commonly used to drain rainwater, irrigate rice fields and household wastewater.
Jabbar Kala Lanang   +2 more
doaj   +1 more source

Conditions of Safe Ship Operation in Seaports – Optimization of Port Waterway Parameters

open access: yesPolish Maritime Research, 2019
A seaport is presented in this article as a system composed of various types of waterways. The author has defined relationships between port waterway system elements and conditions of safe operation of ships in port. Relationships were determined between
Gucma Stanisław
doaj   +1 more source

Towards an Automatic Tool for Resilient Waterway Transport: The Case of the Italian Po River

open access: yesEngineering Proceedings
Improved navigability can enhance inland waterway transportation efficiency, contributing to synchro-modal logistics and promoting sustainable development in regions that can benefit from the presence of considerable waterways.
Maria Luisa Villani   +6 more
doaj   +1 more source

Measurement of ship-generated waves in German coastal waterways from 1998–2022

open access: yesScientific Data
Vessel-generated waves and currents significantly impact coastal and estuarine waterways. In-situ measurements record all relevant physical phenomena that occur under a wide range of conditions and are therefore a valuable resource in the investigation ...
Arne Seemann, Gregor Melling
doaj   +1 more source

Risk for Low Pathogenicity Avian Influenza Virus on Poultry Farms, the Netherlands, 2007–2013

open access: yesEmerging Infectious Diseases, 2017
Using annual serologic surveillance data from all poultry farms in the Netherlands during 2007–2013, we quantified the risk for the introduction of low pathogenicity avian influenza virus (LPAIV) in different types of poultry production farms and ...
Ruth Bouwstra   +5 more
doaj   +1 more source

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