Results 1 to 10 of about 373 (116)

Modal Characteristics of Two Operating Power Transmission Poles [PDF]

open access: yesShock and Vibration, 2010
Unique conductor-pole couplings complicate the dynamic behaviors of electric transmission pole line systems. Finite element modeling is performed on two typical transmission poles used in southeastern USA – a steel pole and a prestressed concrete pole ...
Shen-En Chen, Kaoshan Dai
doaj   +2 more sources

Study on the overturning stability of transmission poles in the Yellow River silt under the influence of wind and rain

open access: yesResults in Engineering
To evaluate the overturning stability of transmission line poles under combined wind and rainfall conditions in the Yellow River beach area, indoor simulation tests and numerical simulations were conducted.
Changbin Yan   +6 more
doaj   +3 more sources

A duality between scattering poles and transmission eigenvalues in scattering theory

open access: yesProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2020
In this paper, we develop a conceptually unified approach for characterizing and determining scattering poles and interior eigenvalues for a given scattering problem. Our approach explores a duality stemming from interchanging the roles of incident and scattered fields in our analysis.
Fioralba Cakoni   +2 more
exaly   +5 more sources

FRP Poles: A State-of-the-Art-Review of Manufacturing, Testing, and Modeling

open access: yesBuildings, 2022
Fiber-reinforced polymers poles were on the increase because they were lightweight, have high strength-to-weight ratios, provide corrosion resistance, can be customized to meet strength and deflection requirements, and have a low life-cycle cost of ...
Ahmed M. EL-Fiky   +6 more
doaj   +1 more source

Molecular Phylogeny of Selected Kenyan Eucalyptus Species Inferred from MatK, rbcL and TrnL-F Genes and Their Suitability for Power Transmission Poles

open access: yesDiversity, 2022
Genus Eucalyptus belongs to the family Myrtaceae and consists of more than 900 species, various hybrids and varieties. The major species that are grown in Kenya are Eucalyptus grandis, E. globulus, E. saligna and E. camaldulensis. Most Eucalyptus species
Daisy Chebet   +4 more
doaj   +1 more source

Centrifugal concrete poles for transmission lines reinforced with prestressed FRP rebar [PDF]

open access: yesE3S Web of Conferences, 2023
Reinforced with steel rebar concrete centrifuged conical poles for power transmission poles receive corrosion damage to steel reinforcement during operation. These damages can lead to the failure of structures.
Kudyakov Konstantin, Buchkin Andrey
doaj   +1 more source

Dual-Band Bandpass Filter With Controllable Stopband Bandwidth

open access: yesFrontiers in Physics, 2022
A novel dual-band bandpass filter (BPF) is proposed with independently controllable transmission zeros (TZs) which can realize widely tunable stopband bandwidth (BW).
Nan Wang   +8 more
doaj   +1 more source

Comparative Analysis of Slenderness Ratio Calculation Methods of Cross Bracings for Towers Between China and EU Overhead Transmission Line Standards

open access: yes南方能源建设, 2023
[Introduction] This paper aims to effectively avoid the design quality problems caused by the difference between domestic and foreign engineering design specifications. The study makes comparative analysis of slenderness ratio of cross bracings for angle
Molin SUN   +3 more
doaj   +1 more source

Vegetation Height Estimation Near Power transmission poles Via satellite Stereo Images using 3D Depth Estimation Algorithms [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
Monitoring vegetation encroachment under overhead high voltage power line is a challenging problem for electricity distribution companies. Absence of proper monitoring could result in damage to the power lines and consequently cause blackout.
A. Qayyum   +7 more
doaj   +1 more source

Reliability Assessment of Transmission Poles

open access: yesEuropean Journal of Engineering and Technology Research, 2022
The structural reliability of round wood and fiber-reinforced polymer (FRP) composite transmission poles is investigated. Numerical reliabilities at ultimate loads for 20 poles are computed and compared. The main inference from this limited study is that FRP poles showed higher structural reliability than wood poles; the average reliability index of ...
openaire   +1 more source

Home - About - Disclaimer - Privacy