Results 41 to 50 of about 12,191,219 (291)

Gradient‐Conductivity Architecture Enables Synchronous Enhancement of Sensitivity and Detection Range in Multifunctional All‐Paper Sensors

open access: yesAdvanced Functional Materials, EarlyView.
A gradient‐engineered all‐paper sensor is fabricated by integrating MXene and in situ grown AgNPs within hierarchical cellulose networks. The device breaks the sensitivity–detection range trade‐off through cascaded conductive pathways, enabling ultrahigh pressure sensitivity, humidity–pressure decoupled dual‐mode sensing, and outstanding EMI shielding,
Ao Li   +7 more
wiley   +1 more source

Hydrodynamic performance analysis of tower wake vortex tidal current energy capture system with swing oscillating hydrofoil

open access: yesXibei Gongye Daxue Xuebao, 2023
In order to effectively utilize the tidal current energy in offshore wind farms, a swing oscillating hydrofoil system for tidal current energy capture is proposed.
ZHU Weijun   +5 more
doaj   +1 more source

Analysis on the Difference of Tidal Current Measurement in the Field Testing of Tidal Energy Converters

open access: yes, 2023
In the field test of tidal energy converters, the measurement of tidal current velocity is one of the key steps to evaluate the power characteristics performance of tidal energy converter. According to the requirements of tidal current velocity measurement specified by the International Electrotechnical Commission, tidal current velocity field ...
Xia, Hainan   +4 more
openaire   +1 more source

Experiences in Developing Tidal Current and Wave Energy Devices for Mediterranean Sea [PDF]

open access: yesFrontiers in Energy Research, 2018
In the last years, the interest for renewable energies has shown a continuously increasing trend, in search of a convenient and sustainable source alternative to carbon and fossil fuels, also due to government incentive systems, as can be seen for example in the objectives proposed by the EU 2020 target.
Coiro, Domenico P.   +2 more
openaire   +4 more sources

Rational Tuning of Hygroscopic Oscillation of Stacked Nanoflake Assemblies for Continuous Ambient Energy Harvesting

open access: yesAdvanced Materials, EarlyView.
Stacked nanoflake assembly (SNA) membranes can oscillate autonomously, offering opportunities for soft actuation and energy harvesting. This work uncovers the physical mechanism behind the sustained oscillation of SNA membranes in gradient humidity and identifies three governing dimensionless parameters, enabling rational design for optimizing SNA ...
Zijing Zhang   +5 more
wiley   +1 more source

The effect of tidal currents on the hydrodynamics of tidal turbine systems [PDF]

open access: yesBIO Web of Conferences
The ocean is a highly potential source of renewable energy with various forms, including wave and tidal energy. Due to its vast composition, the ocean stores and transfers significant amounts of energy. This study focuses on analyzing tidal dynamics that
Firmadany Bayu   +4 more
doaj   +1 more source

Kinetic energy of tidal currents in the province of Chubut, Argentina

open access: yesInternational Marine Energy Journal, 2022
This work is a preliminary study to find some sites for the potential use of tidal stream energy and their associated currents in the Chubut coast.  In addition, an evaluation of the energy resource of the Chubut Gulfs is made. The possibility of energetic utilization of the tides is achieved by transforming the displacement movement into a rotation ...
Lifschitz, Ana Julia   +5 more
openaire   +3 more sources

A review of energy storage technologie sfor marine current energy systems [PDF]

open access: yes, 2013
Increasing concerns about the depletion of fossil resources and the issue of environment lead to a global need for producing more clean energy from renewable sources. Ocean is appreciated as a vast source of renewable energies.
CHARPENTIER, Jean-Frederic   +5 more
core   +1 more source

How “Green” is Your Functional Material? Assessing Environmental Impacts of Multi‐Step Synthetic Protocols in Material Sciences at Various Technology Levels

open access: yesAdvanced Materials, EarlyView.
Environmental Synthesis Radar (ESR) evaluates the environmental impact of (early‐stage) multi‐step chemical syntheses, providing a holistic view by using 18 midpoint impact categories. Unlike conventional life‐cycle assessment (LCA) approaches, ESR reveals three complementary metrics: overall impact Vtotal, environmental hotspots VEF, and critical ...
Laura Plein   +8 more
wiley   +1 more source

Design and testing of a contra-rotating tidal current turbine [PDF]

open access: yes, 2005
A contra-rotating marine current turbine has a number of attractive features: nearzero reactive torque on the support structure, near-zero swirl in the wake, and high relative inter-rotor rotational speeds.
A. D. Grant   +18 more
core   +2 more sources

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