Results 31 to 40 of about 27,339 (259)

Maloperation of Zone-3 Distance Relay Prevention Using Distribution Entropy

open access: yesIEEE Access
Maloperation of third-zone distance relays is predominantly caused by power swings, load encroachment, and voltage instability events. Another possibility for third-zone distance relay maloperation is a delayed voltage recovery event.
Upendran Mukundarajan, K. Shanti Swarup
doaj   +1 more source

Midpoint Relay Selection Using Social Trust and Battery Level to Enhance Throughput in Cooperative Device-to-Device Communications

open access: yesSensors, 2020
Device-to-device communications in underlay mode has emerged as a promising way to enhance spectrum efficiency in cellular networks. Recently, relay selection in D2D communications underlaying cellular networks is gaining more research interest.
Ushik Shrestha Khwakhali   +2 more
doaj   +1 more source

Low-Latency Distance Protective Relay on FPGA

open access: yesIEEE Transactions on Smart Grid, 2014
The need for high-speed multi-function protective relays in both traditional transmission systems and the new emerging paradigm of the smart grid is growing. As a widely used protective scheme for transmission lines, a distance relay’s high speed and reliable operation to clear faults is essential.
Yifan Wang, Venkata Dinavahi
openaire   +2 more sources

Self‐Assembled Crystalline Peptoid Nanomaterials as Metal‐Free Enzyme Mimics for Enhanced Carbon Dioxide Hydration and Precipitation

open access: yesAdvanced Functional Materials, EarlyView.
Inspired by metal‐free carbonic anhydrases (CAs) that achieve efficient catalysis without metal cofactors, we herein report a sequence‐defined supramolecular peptoid platform that mimics metal‐free CAs and exhibits hydrolytic activity via a supramolecular assembly‐mediated proton‐transfer mechanism.
Progyateg Chakma   +8 more
wiley   +1 more source

Research on the placement algorithm of two-tiered constrained relay nodes in wireless sensor networks

open access: yes上海师范大学学报. 自然科学版, 2017
In three-dimensional space,when the location of relay nodes is limited and it is a two-layer topology,a relay location algorithm based on mixed integer linear programming (MILP) is proposed.The algorithm first considers the physical layer model placed by
Xiang Haokai   +4 more
doaj   +1 more source

Delay-aware relay node selection for cluster-based wireless sensor networks

open access: yesMeasurement: Sensors, 2022
Maximizing the network lifetime through balancing energy and lowering the delay is a primary design goal of wireless sensor networks (WSNs). In WSNs, the sensor nodes task is to acquire the data from the area or point of interest and transmit it to the ...
P. Suman Prakash   +2 more
doaj   +1 more source

A Magneto‐Mechanically Activated Nerve Guidance Conduit Promotes Peripheral Nerve Regeneration via TIMP1‐Mediated Membrane Tension Transfer

open access: yesAdvanced Functional Materials, EarlyView.
This study presents a magneto‐mechanical strategy that incorporates FP@MSCs into an aligned PCL/GelMA nerve guidance conduit. Magnetic stimulation increases membrane tension in FP@MSCs, triggering cytoskeletal remodeling, Schwann cell‐like differentiation, and TIMP1 secretion. TIMP1 activates ITGB1/CD63–FAK signaling in NE‐4C cells, increasing membrane
Xinyu Zhu   +14 more
wiley   +1 more source

Oxygen Evolution Electrocatalysts with Trinuclear, Mixed‐Valence Iron Motifs on Electronically Aligned Carbon Dots

open access: yesAdvanced Functional Materials, EarlyView.
Trinuclear iron oxo‐bridged catalytic ensembles stabilized by aspartic‐acid‐derived carbon dots provide an effective platform for alkaline oxygen evolution. Mixed‐valence charge balancing, inner‐sphere charge transport, and work‐function alignment within the N/O‐rich carbon framework promote cooperative Fe‐site chemistry and efficient OER ...
Megha A. Deshmukh   +13 more
wiley   +1 more source

Advancing Human Skin Equivalents: The Crucial Role of Neurovascular Integration

open access: yesAdvanced Healthcare Materials, EarlyView.
This review discusses the importance of integrating vascular and peripheral nerve systems into human skin equivalents (HSEs) to better recapitulate native skin physiology. Recent advances in vascularized, innervated, and neurovascularized HSEs are highlighted, together with emerging bioengineering strategies, current challenges, and future ...
Hao Wu   +4 more
wiley   +1 more source

Efisiensi Energi Sistem Komunikasi Kooperatif Multi-relay Quantize and Forward Berdasarkan Pemilihan Relay

open access: yesJurnal Nasional Teknik Elektro dan Teknologi Informasi, 2017
Currently, the increasing energy consumption is a global issue. Information technology and telecommunication industry is one of the areas with the largest energy consumption.
Fityanul Akhyar   +2 more
doaj   +1 more source

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