Results 61 to 70 of about 266,856 (351)

Distortion of location pulses in high-frequency paths of overhead power lines

Известия высших учебных заведений: Проблемы энергетики, 2019
The work is devoted to the features of propagation of electromagnetic signals (20–1000 kHz) along multi-wire overhead transmission lines. For monitoring the status of overhead power lines, a location method can be used. For connection to power lines, the
V. A. Kasimov
doaj   +1 more source

Multi‐Functional ZnO–Te Heterojunction Devices Enabling Compact Frequency Quadrupler

Advanced Functional Materials, EarlyView.
Wafer‐scale ZnO–Te heterojunction devices featuring tunable double negative differential transconductance (D‐NDT) are demonstrated at ≤ 200°C. Leveraging this unique characteristic, a single‐stage frequency quadrupler is realized, achieving a 64%–75% reduction in device count.
Jae Hyeon Jun, Byeong Gwan Kim, Min Seo Kang, Ui Gwan Shin, Minjae Kim, Kiyung Kim, Hae‐Won Lee, Yongsu Lee, Byoung Hun Lee   +8 more
wiley   +1 more source

Neuromorphic Electronics for Intelligence Everywhere: Emerging Devices, Flexible Platforms, and Scalable System Architectures

Advanced Materials, EarlyView.
The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj, Roshni Satheesh Babu, Yuxin Xia, Eva Bestelink, Radu Sporea, Nikos Hastas, Ioannis Zeimpekis, Dimitra G. Georgiadou, Sayani Majumdar   +8 more
wiley   +1 more source

Calculation and Analysis of Specific Losses of Active Power in Overhead Power Lines due to Corona in View of Climatic Data

Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика
. It is a very challenging task to correctly use weather data to calculate the active power loss due to corona in overhead power lines. One of the significant reasons for this was the problem of accuracy of determining weather conditions and the use of ...
D. A. Sekatski, N. A. Papkova
doaj   +1 more source

Justification of Ice Melting Power on 10 kV Overhead Power Lines

Advances in Electrical and Electronic Engineering, 2019
The fuzzy multicriteria model of the ice melting system on radial 10 kV overhead power lines was developed. Three criteria were taken into account: the minimum of reduced annual costs for ice melting system, the minimum of amount of electric energy not ...
Oleksandr Savchenko, Oleksandr Miroshnyk, Stanislav Diubko   +2 more
doaj   +1 more source

An equivalent circuit for the evaluation of cross-country fault currents in medium voltage (MV) distribution networks [PDF]

, 2018
A Cross-Country Fault (CCF) is the simultaneous occurrence of a couple of Line-to-Ground Faults (LGFs), affecting different phases of same feeder or of two distinct ones, at different fault locations.
Gatta, Fabio Massimo, Geri, Alberto, Lauria, Stefano, Maccioni, Marco   +3 more
core   +1 more source

Pattern Formation in Non‐Equilibrium Architected Materials

Advanced Materials Technologies, EarlyView.
This article demonstrates an artificial mechanical system ‐ a robotic metamaterial ‐ as an accessible and versatile platform within which to explore and prescribe the reaction‐diffusion driven pattern formation hitherto associated with comparatively less accessible and versatile non‐equilibrium biological and chemical systems.
Vinod Ramakrishnan, Michael J. Frazier
wiley   +1 more source

Monte Carlo evaluation of the impact of subsequent strokes on backflashover rate [PDF]

, 2015
The paper deals with the impact of subsequent strokes on the backflashover rate (BFR) of HV overhead transmission lines (OHLs), assessed by means of an ATP-EMTP Monte Carlo procedure.
Gatta, Fabio Massimo, Geri, Alberto, Lauria, Stefano, Maccioni, Marco   +3 more
core   +1 more source

Anti‐Slip Material‐Based Strategies and Approaches

Advanced Materials Technologies, EarlyView.
This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani, Carlo Antonini, Teresa Gatti, Mengjiao Wang   +3 more
wiley   +1 more source

Seasonal variation of transmission line outages in Peninsular Malaysia [PDF]

, 2017
Researchers have observed the impact of climate changes on overhead line outages. It is known that overhead lines are very prone to lightning strikes due to their height and location which are normally in an open and exposed area.
Ab Kadir, Mohd Zainal Abidin, Izadi, Mahdi, Mohamed Rawi, Iryani   +2 more
core