Results 191 to 200 of about 170,361 (361)

A Soft‐Soft Contact Triboelectric Nanogenerator with a Ternary Four‐Phase Structure for Self‐Powered High‐Efficiency Dust Removal on Mars

open access: yesAdvanced Science, EarlyView.
The frequent dust storms and charged dust particles on Mars pose significant challenges to the power generation efficiency and service life of solar panels during exploration missions. This paper proposes a novel wind‐driven ternary four‐phase soft‐soft contact triboelectric nanogenerator (FPS‐TENG) for dust removal.
Fei Yang   +6 more
wiley   +1 more source

Moisture Harvesting by the Structure Regulation of Hygroscopic Hydrogel for Energy and Water Sustainability

open access: yesAdvanced Electronic Materials, EarlyView.
Hygroscopic hydrogels are capable of utilizing the moisture from air, which can transfer the gaseous water to liquid by a surface phase transition. Taking advantage of this water, sustainable water production, thermal management, and electricity generation can be realized.
Yujie Du   +5 more
wiley   +1 more source

Realization of Non‐Equilibrium Wurtzite Structure in Heterovalent Ternary MgSiN2 Film Grown by Reactive Sputtering

open access: yesAdvanced Electronic Materials, EarlyView.
The piezoelectric and ferroelectric applications of heterovalent ternary materials are not well explored. In this study, c‐axis‐oriented epitaxial MgSiN2 films with the wurtzite structure are successfully grown on (111) Pt//(001)Al2O3 substrates by reactive RF magnetron sputtering at 600 °C under pure N2 atmosphere.
Sotaro Kageyama   +16 more
wiley   +1 more source

Combining evolutionary computation with machine learning technique for improved short-term prediction of UT1-UTC and length-of-day

open access: yesEarth, Planets and Space
Over the years, prediction techniques for the highly variable angular velocity of the Earth represented by Earth's rotation (UT1-UTC) and length-of-day (LOD) have been continuously improved.
Sujata Dhar   +8 more
doaj   +1 more source

The Rotation of the Earth [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1915
openaire   +2 more sources

ULF Multi‐Key Tunable Magnetoelectric Antenna Array with Enhanced Communication Data Rate

open access: yesAdvanced Electronic Materials, EarlyView.
This work presents a reconfigurable magnetoelectric antenna with a dual‐asymmetric cantilever structure. By adjusting its fixed boundary conditions, the antenna's resonant frequency is tunable over a 500 Hz range within the ultra‐low‐frequency (ULF) band.
Qianshi Zhang   +7 more
wiley   +1 more source

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