Results 81 to 90 of about 18,998,753 (295)

Delays in Protection Devices and Their Effects on Selectivity: The Reaction Time Gap

IEEE Open Journal of Power Electronics
This Paper investigates how the internal delays of circuit breakers until the limitation of the fault current affect the selectivity of a low-voltage direct current (LVDC)-grid under short-circuit conditions.
Johannes Gehring, Raffael Schwanninger, Kilian Drexler, Bernd Wunder, Vincent Lorentz, Martin Marz   +5 more
doaj   +1 more source

Degradable, Skin‐Conformal Nanocomposite‐Based Bioelectronic Patches for High‐Fidelity Electrophysiology and Gesture‐Controlled Robotics

Advanced Functional Materials, EarlyView.
A degradable, skin‐conformal bioelectronic patch combines a starch‐dominated nanocomposite conductor with a gelatin substrate to enable sensitive strain sensing, high‐fidelity electrocardiography, electromyography, electrooculography, and machine‐learning‐assisted gesture control.
Ming Dong, Hongna Yuan, Shubo Liu, Abdulkadir Sanli, Emiliano Bilotti, Han Zhang, Pietro Cataldi, Karin Hing, Oliver Fenwick, Colin J. Humphreys, Dimitrios G. Papageorgiou   +10 more
wiley   +1 more source

Improving DC Circuit Breaker Performance Through an Alternate Commutating Circuit

, 2018
Fault interruption in de circuits is more challenging than in their ac counterparts. The absence of natural current zero crossing along with resistive nature of the dc grids creates a significantly higher fault current to disrupt at the dc circuit ...
Sudipta Sen, Mehraeen, Shahab, Farzad Ferdowsi, Ferdowsi, Farzad, Shahab Mehraeen, Sen, Sudipta   +5 more
core   +1 more source

Guanosine‐Quadruplex Hydrogels as Dynamic, Mechanically Tunable and Ion Conductive 3D Scaffolds for Cell Culture Applications

Advanced Functional Materials, EarlyView.
Versatile guanosine‐quadruplex (GQ) hydrogels are developed as dynamic biomatrices for cell culture. These scaffolds are fabricated under mild aqueous conditions, present improved stability, tunable mechanical properties within physiological ranges; fibrillar, porous microstructure, ion conductivity, and cytocompatibility.
Neha Thakur, Minye Jin, Pavel Milkin, Deepa Negi, Carla Cofiño Fabres, Hubert Gojzewski, Leonid Ionov, Alla Synytska, Andries van der Meer, Robert Passier, Julieta I. Paez   +10 more
wiley   +1 more source

Improving Surge Voltage and Power Loss of the MOV-MOV-C Approach for Low-Scale DC Solid-State Circuit Breaker Applications

IEEE Open Journal of the Industrial Electronics Society
The dc solid-state circuit breaker (SSCB) is commonly used to protect sensitive equipment and enhance system stability by quickly interrupting fault currents, thereby increasing overall safety.
Phanit Sok, Sung-Geun Song, Guangxu Zhou, Feel-Soon Kang   +3 more
doaj   +1 more source

Magneto‐Ionic Devices With Polymer‐Based Electrolytes

Advanced Functional Materials, EarlyView.
Polymer electrolytes are introduced for magneto‐ionic devices based on hydroxide and hydrogen ions. The magneto‐ionic effect results in a pronounced voltage‐controlled variation of coercivity in both devices. The switching speed is in the range of 100 ms.
Markus Gößler, Richard Weber, Michael Sommer, Karin Leistner   +3 more
wiley   +1 more source

Nitrospinics: Nitride Materials for Spin‐Orbit and Orbital Torques From Memory to Artificial Intelligence

Advanced Functional Materials, EarlyView.
Further advances in applications can be anticipated through the development of unique and functional materials beyond conventional alloys. Nitrogen enables tailor‐made orbital textures in various transition‐metal hosts, paving the way for devices ranging from spintronics memory to artificial intelligence hardware.
Prabhat Kumar, Gaurav Kumar Shukla, Yoshio Miura, Shinji Isogami   +3 more
wiley   +1 more source

Interlinked solid-state MVDC circuit breaker with current regulation capability

, 2019
This paper proposes an interlinked solid-state circuit breaker (ISSCB) for medium-voltage direct current (MVDC) system. An ISSCB can effectively block dc fault at different locations and also provide current regulation during normal operation.
Ming, Wenlong, Wang, Sheng, Liang, Jun
core   +1 more source

Application of Metaheuristic Optimisation Techniques for the Optimisation of a Solid-State Circuit Breaker

Applied Sciences
Designing solid-state circuit breakers (SSCBs) involves a large discrete design space spanning MOSFET type, bypass configuration, and heatsink selection.
Adam P. Lewis, Gerardo Calderon-Lopez, Ingo Lüdtke, Jason Vincent-Newson, Sahil Upadhaya, Jas Singh, Matt Grubb   +6 more
doaj   +1 more source

Targeting CD300a Signaling With a Phosphatidylserine‐Presenting Hydrogel Rescues Macrophage Dysfunction and Accelerates Diabetic Wound Healing

Advanced Healthcare Materials, EarlyView.
Schematic illustration of the proposed mechanism: PEG/RGD‐PSLs mimic apoptotic cells to engage PS receptors (notably CD300a), transducing an inhibitory signal that suppresses the MyD88/NF‐κB pathway, leading to global anti‐inflammatory and pro‐reparative effects.
Lele Wu, Xuetong Hao, Yang Zou, Xinglin Chen, Junyan Kong, Chunning Gu, Wenjie Ma, Zhongjun Yang, Huifen Liu, Mengmeng Liu, Xin Tong   +10 more
wiley   +1 more source