Results 81 to 90 of about 12,191,219 (291)

Scanning Parametric Sediment Echosounder as Tool for Underwater Archaeological Prospection

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT Underwater cultural heritage 3D prospection techniques, especially for remains that are partly buried in the ground, are only very rarely available and often can only be applied with considerable technical effort. To overcome this limitation, we evaluate a methodological adaption of widely used and available single channel parametric sediment ...
Dennis Wilken   +5 more
wiley   +1 more source

The downstream wake response of marine current energy converters operating in shallow tidal flows

open access: yes, 2011
This paper presents findings from an experimental study investigating the downstream wake response from marine current energy convertors operating in various degrees of vertical flow constraint. The paper investigates deep vertically unconstrained sites,
Myers, L.E.   +3 more
core   +1 more source

A Geographical-Based Multi-Criteria Approach for Marine Energy Farm Planning [PDF]

open access: yes, 2014
The objective of this paper is to devise a strategy for developing a flexible tool to efficiently install a marine energy farm in a suitable area. The current methodology is applied to marine tidal current, although it can be extended to other energy ...
Christophe Claramunt   +7 more
core   +1 more source

Biochar‐based fertilizers improve nutrient use efficiency in sunflower grown on a subtropical tidal soil

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract Improving fertilizer use efficiency is essential for reducing environmental pollution, sustaining agricultural production, and maximizing the economic profitability of crop production systems. This study tested the hypothesis that the formulation strategy of biochar‐based fertilizers, rather than nutrient addition alone, is associated with ...
Md. Al‐Amin   +7 more
wiley   +1 more source

Compliant hydrogel cuff coating with real‐time pressure monitoring and antibiofilm capabilities for ventilator‐associated pneumonia prophylaxis

open access: yesBMEMat, EarlyView.
A soft‐compliant hydrogel cuff coating combines real‐time pressure monitoring with intrinsic antibacterial activity for prophylaxis of ventilator‐associated pneumonia. A flexible pressure‐sensing patch is embedded in the coating to enable wireless dynamic monitoring of endotracheal cuff pressure through Bluetooth.
Jin Chai   +11 more
wiley   +1 more source

New approach to tidal stream energy analysis at sites in the English Channel

open access: yes, 2009
Tidal stream power generation offers the prospect of predictable, low-CO2power at a number of locations around the UK and the world. Previousassessments of tidal energy resources have taken the form of desk studiesbased on simplified navigational data ...
Blunden, L.S., Blunden, L S
core   +1 more source

Study on Dynamic Behaviors of Hypoid Gears Under Variable Tidal Current Energy Harvesting Conditions

open access: yesMachines
This study investigates dynamic behaviors of hypoid gear rotor systems under variable tidal current energy harvesting conditions through numerical simulations and experimental validation. The study examines dynamic responses of a hypoid gear rotor system
Dequan Huang   +3 more
doaj   +1 more source

Power Control of a Nonpitchable PMSG-Based Marine Current Turbine at Overrated Current Speed With Flux-Weakening Strategy [PDF]

open access: yes, 2014
This paper deals with power control strategies for a fixed-pitch direct drive marine current turbine (MCT) when the marine current velocity exceeds the rated value corresponding to the MCT nominal power.
SCUILLER, Franck   +6 more
core   +1 more source

Carrion ecology: concepts, interdisciplinary synthesis, and perspectives

open access: yesBiological Reviews, EarlyView.
ABSTRACT Carrion is a ubiquitous resource in both terrestrial and aquatic ecosystems, yet it has long been overlooked in ecological research. Over the past two decades, studies on carrion and the many organisms that exploit it have flourished, revealing not only wide‐ranging ecological functions but also significance far beyond ecology.
Marcos Moleón   +38 more
wiley   +1 more source

Influence of fish scale bionic structure on energy performance of a tidal current turbine

open access: yesInternational Marine Energy Journal
The hydrodynamic performance of the tidal current turbine impeller is crucial for converting energy into electricity as it is considered the core component of the tidal current energy capture device.
XINGYU JIA   +5 more
doaj   +1 more source

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