Results 101 to 110 of about 370,944 (195)

A bidirectional DC-DC converter for renewable energy systems

open access: yes, 2009
A bidirectional DC-DC converter for renewable energy systemsTo improve the energy quality, most of the renewable energy systems include an energy storage element charged by the bidirectional DC-DC converter.
T. Citko, S. Jalbrzykowski
core   +1 more source

Body‐integrated photonic biosensors: Illuminating the path to active healthcare

open access: yesFlexMat, EarlyView.
Body‐integrated photonic biosensors are promising tools for active healthcare. These optical devices can be worn, implanted, or swallowed to monitor health signals continuously. This review introduces key sensing modalities, including fluorescence, colorimetry, SPR, LSPR, SERS, and light‐modulating materials.
Jiayue Gu   +10 more
wiley   +1 more source

Impedance-Based Stability Analysis of a Low-Inertia AC Grid Connected to a DC Grid by a VSC With Virtual Inertia Controllers

open access: yesIEEE Open Journal of Power Electronics
The dynamics and performance of low-inertia ac grids with frequency support (e.g., droop and virtual inertia controls) have been investigated thoroughly.
Ahmed M.E.I. Mohamad   +2 more
doaj   +1 more source

Artificial structures for human‐machine interfaces with closed‐loop interaction

open access: yesFlexMat, EarlyView.
Artificial structures bridge sensing and feedback in closed‐loop human‐machine interfaces by providing geometry‐enabled mechanical and functional programmability. This review maps the role of artificial structures in diverse sensing modalities and feedback strategies, and illustrates their integration into closed‐loop interaction systems, highlighting ...
Taiqi Hu   +4 more
wiley   +1 more source

Magneto‐responsive fibers and fabrics for soft systems

open access: yesFlexMat, EarlyView.
Abstract The combination of functional materials in fiber form has led to a surge in the integration of functional fibers and fabrics into soft systems that span sensing, communication, and actuation domains. A key subset is magnetic fibers and fabrics.
Hanlin Zhu   +8 more
wiley   +1 more source

Isolated Bidirectional DC–DC Converter for SuperCapacitor Applications [PDF]

open access: yes, 2011
This paper proposes a new bidirectional DC/DC converter for supercapacitor applications. The proposed converter has a parallel structure in supercapacitor side (where voltage is low and current is high) and a series structure in the other side.
Dehnavi, Sayed M. D.   +4 more
core  

Aerogel Fiber: A One‐Dimensional Programmable Porous Matter for Next Thermal Management Materials

open access: yesInterdisciplinary Materials, EarlyView.
Aerogel fibers are redefined as one‐dimensional programmable porous matter, where thermal transport is governed by multiscale pathway engineering. By reconstructing and decoupling transport pathways from molecular to textile scales, these systems integrate insulation, radiative cooling, and adaptive thermal regulation.
Lizhi Ren   +6 more
wiley   +1 more source

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