Results 81 to 90 of about 167,660 (303)
Subterranean environments contribute to three‐quarters of classified ecosystem services
ABSTRACT Beneath the Earth's surface lies a network of interconnected caves, voids, and systems of fissures forming in rocks of sedimentary, igneous, or metamorphic origin. Although largely inaccessible to humans, this hidden realm supports and regulates services critical to ecological health and human well‐being.
Stefano Mammola +30 more
wiley +1 more source
Techno-Economic Analysis of Tidal Energy Devices Within the Dinagat Islands in the Philippines
Portions of Surigao del Norte, Southern Leyte Provinces, and Dinagat Islands are pre-identified by the Department of Energy (DOE) as potential deployment sites of tidal energy.
Emmanuel R. Caquilala +2 more
doaj
Horizontal-axis axial flow tidal current turbine is regularly used to exploit the kinematic energy in tidal currents. However, the scaling up of tidal current turbine is very difficult.
Wenxian Yang +2 more
doaj +1 more source
Resonance locking as the source of rapid tidal migration in the Jupiter and Saturn moon systems [PDF]
The inner moons of Jupiter and Saturn migrate outwards due to tidal energy dissipation within the planets, the details of which remain poorly understood. We demonstrate that resonance locking between moons and internal oscillation modes of the planet can
Fuller, Jim, Luan, Jing, Quataert, Eliot
core +2 more sources
Extent, characteristics and policy applications of Key Biodiversity Areas
ABSTRACT A global standard for the identification of Key Biodiversity Areas (KBAs) was published 10 years ago to provide a unified set of criteria for identifying ‘sites of significance for the global persistence of biodiversity’. We review the initiative's origins, the KBA identification process, characteristics of the current network, threats, policy
Stuart H. M. Butchart +57 more
wiley +1 more source
Study on Dynamic Behaviors of Hypoid Gears Under Variable Tidal Current Energy Harvesting Conditions
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
Three biobased membranes are synthesized by crosslinking oxidized Kraft lignin with poly(ethylene glycol) diglycidyl ether of increasing molecular weights. After incorporation of solvated potassium salts, potassium batteries including these biobased gel polymer electrolytes are able to deliver a maximum specific capacity at 0.05 A g−1 as high as 130 ...
Giuseppe Pascuzzi +5 more
wiley +1 more source
Influence of fish scale bionic structure on energy performance of a tidal current turbine
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
Spacetime dynamics of spinning particles - exact electromagnetic analogies
We compare the rigorous equations describing the motion of spinning test particles in gravitational and electromagnetic fields, and show that if the Mathisson-Pirani spin condition holds then exact gravito-electromagnetic analogies emerge.
A. Barnes +32 more
core +1 more source
Virialization of matter overdensities within dark energy subsystems: special cases [PDF]
The virialization of matter overdensities within dark energy subsystems is considered under the restrictive assumptions (i) spherical-symmetric density profiles, (ii) time-independent quintessence equation of state parameter, w, and (iii) nothing but ...
Caimmi, R.
core +2 more sources

