Results 21 to 30 of about 15,703 (300)

STRATEGIE MIGRACYJNE. INTEGRACJA JĘZYKOWA A UTRZYMANIE JĘZYKA POLSKIEGO W RODZINACH W DWUJĘZYCZNYCH REGIONACH HISZPANII – PRZYKŁAD KATALONII I BALEARÓW [PDF]

Studia Humanistyczne AGH, 2017
Poles are considered in Spain to be fast integrating linguistically and well-functioning regarding communication. Undoubtedly, a good command of language is fundamental in social and profession integration and (depending on individual motivation ...
Agnieszka Mejnartowicz, Dariusz Kuźniak
doaj   +1 more source

Centrifugally-cast concrete poles with non-metallic reinforcement

Građevinar, 2021
The article describes the testing of poles for electric power transmission lines, which are made of centrifugally-cast concrete and ultra-high strength concrete, and which are prestressed with Carbon Fibre Reinforced Polymer tendons (CFRP). The presented
Igor Džajić, Domagoj Damjanović, Goran Puž   +2 more
doaj   +1 more source

Biaxial Loading Capacity of H-Type Reinforced Concrete Electric Poles [PDF]

Journal of Rehabilitation in Civil Engineering
H-type reinforced concrete poles are nowadays widely used as an economical and cost-effective substitute for wooden poles in power transmission lines.
Abolfazl Eslami, Moein Ramezanpour, Ehsan Hematpoury Farokhy, Mohammad Dehghani Sanij   +3 more
doaj   +1 more source

Multiterminal Hybrid DC Line Protection Based on Intrinsic Mode Energy Entropy

Frontiers in Energy Research, 2022
In view of the UHV multiterminal hybrid DC transmission system, the DC line protection with universal applicability, fast response speed, stability, and reliability is particularly important for its safe and economic operation.
Chao Xing, Pengsong Li, Pengsong Li, Guihong Bi, Shilong Chen, Junhao Chen, Junhao Chen, Zihang Zhang, Zihang Zhang   +8 more
doaj   +1 more source

Super High-Selectivity Fifth-Order Bandpass Filter with Twelve Transmission Zeros [PDF]

Radioengineering, 2018
A fifth-order bandpass filter (BPF) with super high selectivity using three pairs of coupled lines and two open stubs is proposed. Twelve transmission zeros (TZs) from 0 to 2f_0 (f_0 denotes center frequency of the passband) and five transmission poles ...
Y.-J. Cai, F.-Y. Zhang, K.-D. Xu, D.-H. Li   +3 more
doaj  

Nondestructive Inspection of Reinforced Concrete Utility Poles with ISOMAP and Random Forest

Sensors, 2018
Reinforced concrete poles are very popular in transmission lines due to their economic efficiency. However, these poles have structural safety issues in their service terms that are caused by cracks, corrosion, deterioration, and short-circuiting of ...
Saeed Ullah, Minjoong Jeong, Woosang Lee
doaj   +1 more source

Natural durability of Eucalyptus species harvested as electricity transmission poles in two different ecological zones of Ghana

Scientific African
This study assessed the possibility and feasibility of using two Eucalyptus species for electricity transmission poles in Ghana as a means of minimizing the import of transmission poles in the country.
Francis Wilson Owusu, Mary Mamle Apetorgbor, James Kofi Korang, Courage Alorbu, Emmanuel Appiah-Kubi, Rado Gazo, Francis Asare   +6 more
doaj   +1 more source

Residual life assessment of overhead transmission lines 110 kV and above and determination of their reconstruction terms

E3S Web of Conferences, 2017
In this article is given a method for assessment the residual life of overhead transmission lines on reinforced concrete supports with centrifuged poles. Reinforced concrete poles of supports, wires and lightning protection cables are adopted as the main
Uteuliyev Bauyrzhan
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Design of Multiplexers for IoT-Based Applications Using Stub-Loaded Coupled-Line Resonators

Micromachines, 2023
This paper presents the design of microstrip-based multiplexers using stub-loaded coupled-line resonators. The proposed multiplexers consist of a diplexer and a triplexer, meticulously engineered to operate at specific frequency bands relevant to IoT ...
Muhammad Idrees, Sohail Khalid, Muhammad Abdul Rehman, Syed Sajid Ullah, Saddam Hussain, Jawaid Iqbal   +5 more
doaj   +1 more source

Analysis and implementation of 3D bandpass frequency selective structure with high frequency selectivity

Electronics Letters, 2017
A novel 3D frequency selective structure (FSS), exhibiting bandpass filtering response with high frequency selectivity, is presented. In each unit cell, multiple resonators are constructed to provide multiple transmission zeros/poles.
Keya Tao, Bo Li, Yiming Tang, Ming Zhang, Yaming Bo   +4 more
doaj   +1 more source