Results 31 to 40 of about 344,906 (305)

Ensuring the Continuity of Power Supply to the On-Board Auxiliary Devices of the Trolleybus through the Recuperation of Kinetic Energy

open access: yesEnergies, 2021
When a trolleybus travels through insulated sections of the overhead contact line, it experiences momentary power interruptions, which adversely affect the vehicle’s on-board auxiliary subassemblies.
Piotr Hołyszko   +4 more
doaj   +1 more source

Understanding Link Dynamics in Wireless Sensor Networks with Dynamically Steerable Directional Antennas [PDF]

open access: yes, 2013
. By radiating the power in the direction of choice, electronicallyswitched directional (ESD) antennas can reduce network contention and avoid packet loss.
C. Noda   +9 more
core   +2 more sources

Overhead Power Line Tension Estimation Method Using Accelerometers

open access: yesEnergies
Overhead power lines are important components of power grids, and the status of transmission line equipment directly affects the safe and reliable operation of power grids.
Sang-Hyun Kim, Kwan-Ho Chun
doaj   +1 more source

Criticality analysis for improving maintenance, felling and pruning cycles in power lines [PDF]

open access: yes, 2018
16th IFAC Symposium on Information Control Problems in Manufacturing INCOM 2018 Bergamo, Italy, 11–13 June 2018. Edited by Marco Macchi, László Monostori, Roberto PintoThis paper deals with the process of criticality analysis in overhead power lines ...
Crespo Márquez, Adolfo   +6 more
core  

Micropatterned Biphasic Printed Electrodes for High‐Fidelity on‐Skin Bioelectronics

open access: yesAdvanced Functional Materials, EarlyView.
Micropatterned biphasic printed electrodes achieve unprecedented skin conformity and low impedance by combining liquid‐metal droplets with microstructured 3D lattices. This scalable approach enables high‐fidelity detection of ECG, EMG, and EEG signals, including alpha rhythms from the forehead, with long‐term comfort and stability.
Manuel Reis Carneiro   +4 more
wiley   +1 more source

The method for ice detection on wires of air-lines

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2017
A new method for ice detection on wires of air-lines, including transmission by wire overhead line sine wave frequency and amplitude stable and fixing the level of the RF signal.
YU. V. Piskovatskiy, D. F. Gubaev
doaj   +1 more source

Tuning the Dielectric Properties of Individual Clay Nanosheets by Interlayer Composition: Toward Nano‐Electret Materials

open access: yesAdvanced Functional Materials, EarlyView.
The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich   +6 more
wiley   +1 more source

Distribution of currents and voltages of the "resonant" frequencies along the overhead power lines of 6 - 35 kV level voltageinsingle-phase ground fault mode

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2017
Paper show methodic of determine of place of single-phase ground fault with intermittent arc on the overhead power line. The informative signs of single-phase ground fault place are determine by values of voltage of the «resonance» frequencies of zero ...
A. I. Fedotov   +2 more
doaj   +1 more source

Influence of Geomagnetic Disturbances in the Polar Regions on the Reactive Power Transmissions Mode on the Airline

open access: yesРоссийская Арктика, 2020
Analytical expressions are obtained for determining reactive power at the beginning and at the end of an intersystem overhead line, taking into account the parameters of the magnetization branches of power transformers, which allow one to take into ...
Aleksey A. KUVSHINOV   +2 more
doaj   +1 more source

High Voltage Insulator Surface Evaluation Using Image Processing

open access: yes, 2017
High voltage insulators are widely deployed in power systems to isolate the live- and dead-part of overhead lines as well as to support the power line conductors mechanically.
Bagheri, Mehdi   +2 more
core   +1 more source

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