Results 261 to 270 of about 294,056 (317)

Multi‐Pathway Upconversion Emission in Symmetry‐Broken Nanocavities: Broadband Multiresonant Enhancement and Anti‐Correlated Interfacial Sensitivity

open access: yesAdvanced Functional Materials, EarlyView.
Symmetry‐broken plasmonic nanoantenna arrays achieve broadband multiresonant enhancement of second harmonic generation (SHG), third harmonic generation (THG), and upconversion photoluminescence (UCPL), under femtosecond laser excitation across the near‐infrared range (1000–1600 nm).
Elieser Mejia   +9 more
wiley   +1 more source

Discovery of an Intrinsic Antiferromagnetic Semiconductor EuSc2Te4 With Magnetism‐Driven Nonlinear Transport

open access: yesAdvanced Functional Materials, EarlyView.
EuSc₂Te₄, an antiferromagnetic semiconductor, exhibits a nonlinear Hall effect (NLHE) characterized by quadratic current–voltage behavior. Combined experimental and theoretical studies reveal that this NLHE is linked to its antiferromagnetism and involves contributions from the quantum metric.
Seng Huat Lee   +15 more
wiley   +1 more source

Hydrophobic Deep Eutectic Solvent (DES) Design Enables Optimally Hydrated DES‐in‐Water Electrolytes for High‐Performance Bromine Redox‐Enhanced Energy Storage Systems

open access: yesAdvanced Functional Materials, EarlyView.
Faradaic charging with bromine redox chemistry shows promise for energy storage, yet its efficient use in aqueous electrolytes is hindered by water decomposition and polybromides' cross‐diffusion, leading to suboptimal cell performance. This study introduces a tetrabutylammonium bromide‐based hydrated deep eutectic electrolyte with optimized water ...
Tae Pyeong Eom   +4 more
wiley   +1 more source

Highly Efficient 3D‐Printed PVDF‐Based Triboelectric Nanogenerators Featuring Polymorphic Perovskite Nanofillers

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates the use of a low‐cost 3D printing technique to prepare a large‐area PVDF‐FAPbI3 composite dielectric film for flexible TENG application. The δ→α phase transformation of the FAPbI3 nanofillers has significantly improved the β‐phase content, morphology, and dielectric properties of the PVDF film.
Nurfatin Hafizah Zain Karimy   +7 more
wiley   +1 more source

Uninterrupted Electric Power

Science, 1996
Given the importance of reliable and uninterrupted electrical power in the United States (Philip H. Abelson, Editorial, [19 Jan., p. 273][1]) and throughout North America, we believe that more effort needs to be made to provide warnings of geomagnetic disturbances, which have had an increasing impact on technology systems such as electric grids as ...
John G. Kappenman, Daniel N. Baker
openaire   +2 more sources

Electric Power System [PDF]

open access: possible, 2011
This chapter contains sections titled: Electrical Network Electric Generation Stations Fossil Power Plants Nuclear Power Plants Hydroelectric Power Plants Distribution System Exercises ...
George G. Karady, Keith E. Holbert
openaire   +2 more sources

Electric Power Switching

Transactions of the American Institute of Electrical Engineers, 1934
A SYMPOSIUM on switching power at modern large generating plants is included on the program of the Institute's forthcoming winter convention. Five papers, each describing the facilities at one such plant, are to be discussed. Three of these papers are included in this issue, the other 2 having been included in the December 1933 issue.
openaire   +3 more sources

Electric Power for Airplanes

Transactions of the American Institute of Electrical Engineers, 1940
Electric-power loads are increasing rapidly on airplanes and auxiliary-engine-driven generators offer dependable power sources independent of main engines, Minimum weight for the required capacity is essential in the design of generators, motors, and control.
openaire   +3 more sources

Electrically Powered Orthotic Systems

The Journal of Bone & Joint Surgery, 1969
Electrically powered orthotic systems have been devised at Rancho Los Amigos to provide quadriplegic and other severely paralyzed patients with mobility and voluntary hand movements. The equipment necessary to fit a totally paralyzed patient for maximum restoration of upper extremity function includes an electric wheelchair, a Rancho electric arm with ...
J. R. Allen   +2 more
openaire   +4 more sources

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