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Analysis of Arbitrary Reflector Antennas Applying the Geometrical Theory of Diffraction Together with the Master Points Technique

María Jesús Algar, Jose-Ramón Almagro, Javier Moreno, Lorena Lozano et al. • International Journal of Antennas and Propagation (2013)

An efficient approach for the analysis of surface conformed reflector antennas fed arbitrarily is presented. The near field in a large number of sampling points in the aperture of the reflector is obtained applying the Geometrical Theory of...

DOAJ Open Access (DOAJ) DOI: 10.1155/2013/415069

Evolution characteristics of seepage-stress fields and optimization of waterproof-drainage system during operation period of urban tunnels with small interval

CHEN Ziquan 1 , HE Chuan 1, YU Bingxin 1, LI Zheng 1, 2, ZHANG Hang 2, LIU Maoyi 2 • Yantu gongcheng xuebao (2025)

The long-term structural safety issues of water-rich tunnels under complex hydrogeological conditions during operation period and their mutual interaction mechanism with groundwater environment are receiving increasing attention. To study t...

DOAJ Open Access (DOAJ) DOI: 10.11779/CJGE20240323

Impact of biomass ash content on biocomposite properties

Xianhui Zhao, Oluwafemi Oyedeji, Erin Webb, Sanjita Wasti et al. • Composites Part C: Open Access (2022)

Owing to its low cost and sustainable nature, lignocellulosic biomass has been utilized for reinforcing polymers, but it is crucial to understand the impact of high-ash concentrations in biomass on composite strength and processing. Biomass...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.jcomc.2022.100319

A Novel Method to Broaden the Single-Mode Bandwidth of the Rectangular Waveguide

Tingting Xie, Xiaohe Cheng, Yuan Yao, Yaohui Yang et al. • International Journal of Antennas and Propagation (2022)

In this paper, a new class of broadband and low-loss transmission line called slotted rectangular waveguide (SRW) is proposed and analyzed. The proposed SRW consists of the rectangular waveguide and the inverted low-loss slotline, which can...

DOAJ Open Access (DOAJ) DOI: 10.1155/2022/1554190

An Integrated Decision Support Model for Evaluating Public Transport Quality

Sarbast Moslem, Ahmad Alkharabsheh, Karzan Ismael, Szabolcs Duleba • Applied Sciences (2020)

Big cities suffer from serious complex problems such as air pollution, congestion, and traffic accidents. Developing public transport quality in such cities is considered an efficient remedy to obviate these critical issues. This paper aims...

DOAJ Open Access (DOAJ) DOI: 10.3390/app10124158

The effect of freeze-thaw cycles on the frost resistance of energy tunnels in cold regions

Yue Guo, Chenglong Wang, Abdelmalek Bouazza, Xuanming Ding et al. • Case Studies in Thermal Engineering (2026)

Seasonal temperature fluctuations in cold regions induce freeze–thaw cycles that can significantly impact the structural safety and maintenance of tunnels. This study uses the Daban Mountain Tunnel as a case study to develop a full-scale nu...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.csite.2026.108518

Quantum Computing in Transportation Engineering: A Survey

Shriyank Somvanshi, Md Monzurul Islam, Sazzad Bin Bashar Polock, Gaurab Chhetri et al. • IEEE Transactions on Intelligent Transportation Systems (2026)

Quantum computing introduces new computational methods that address complex optimization and machine learning challenges in transportation engineering. This literature survey reviews fundamental quantum principles, including qubits, superpo...

OPENALEX Open Access DOI: https://doi.org/10.1109/tits.2026.3662626

The Impact of Phase-Locked Loop (PLL) Architecture on Sub-Synchronous Control Interactions (SSCI) for Direct-Driven Permanent Magnet Synchronous Generator (PMSG)-Based Type 4 Wind Farms

Arslan Ashraf, Muhammad Saadi • World Electric Vehicle Journal (2023)

Electric vehicles (EVs) are a promising solution to reduce carbon dioxide (CO2) emissions, but this reduction depends on the fraction of renewable sources used to generate electricity. Wind energy is thus a vital candidate and has experienc...

DOAJ Open Access (DOAJ) DOI: 10.3390/wevj14080206

Predicting Method for Lining External Water Pressure Reduction Coefficient Based on Equivalent Stable Drainage Volume Principle

GAO Xin, FENG Shijie, ZHANG Lianqing • Chengshi guidao jiaotong yanjiu (2025)

[Objective] By establishing a numerical seepage analysis model that aligns with real drainage systems and introducing the concept of a ′virtual permeability coefficient′ for secondary lining, the objective is to delve into the correlation b...

DOAJ Open Access (DOAJ) DOI: 10.16037/j.1007-869x.2025.03.050

Effects of Titanate Coupling Agent on Engineering Properties of Asphalt Binders and Mixtures Incorporating LLDPE-CaCO3 Pellet

Mohd Rosli Mohd Hasan, Zhanping You, Mohd Khairul Idham Mohd Satar, Muhammad Naqiuddin Mohd Warid et al. • Applied Sciences (2018)

This study was initiated to evaluate the performance of asphalt binders and mixtures incorporating linear low-density polyethylene- calcium carbonate (LLDPE-CaCO3) pellet, either with or without titanate coupling agent. The detailed manufac...

DOAJ Open Access (DOAJ) DOI: 10.3390/app8071029

Experimental Study on the Sliding of WJ-8 Small Resistance Fastener Composite Pad

Zhiping Zeng, Di Wang, Fushan Liu, Abdulmumin A. Shuaibu et al. • Advances in Civil Engineering (2020)

Under long-term temperature loading, long bridges stretch and deform, causing the beam and rail to move relative to each other. This phenomenon could cause a gradual slide of the rail relative to the fastener composite pad and ultimately re...

DOAJ Open Access (DOAJ) DOI: 10.1155/2020/1918043

Effects of adding bamboo fiber on various aspects of concrete performance: A state-of-the-art review

Longping Yan, Muwang Wei, Lei Huang, Huawei Li et al. • KSCE Journal of Civil Engineering (2026)

This review systematically examines the role of bamboo fiber (BF) in enhancing the performance of cement-based composites, with a particular focus on workability, mechanical properties, durability, and sustainability. BF, as a renewable and...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.kscej.2026.100676

ICESat‐2 Pointing Calibration and Geolocation Performance

S. B. Luthcke, T. C. Thomas, T. A. Pennington, T. W. Rebold et al. • Earth and Space Science (2021)

Abstract ICESat‐2 science requirements are dependent on the accurate real‐time pointing control (i.e., geolocation control) and postprocessed geolocation knowledge of the laser altimeter surface returns. Prelaunch pointing alignment errors ...

DOAJ Open Access (DOAJ) DOI: 10.1029/2020EA001494

A comparison of regularized, sharp boundary and tear zone inversions along an MT profile in Sabalan geothermal field, Iran

Montahaei Mansoure, Ghanbarifar Saeid • E3S Web of Conferences (2020)

This paper investigates magnetotelluric (MT) data recorded along a profile in the Sabalan geothermal region, NW of Iran. To find the range of relevant models consistent with the data, this study employed the so-called regularized, tear zone...

DOAJ Open Access (DOAJ) DOI: 10.1051/e3sconf/202021102004

Excitation thresholds of field-aligned irregularities and associated ionospheric hysteresis at very high latitudes observed using SPEAR-induced HF radar backscatter

D. M. Wright, R. S. Dhillon, T. K. Yeoman, T. R. Robinson et al. • Annales Geophysicae (2009)

On 10 October 2006 the SPEAR high power radar facility was operated in a power-stepping mode where both CUTLASS radars were detecting backscatter from the SPEAR-induced field-aligned irregularities (FAIs). The effective radiated power of...

DOAJ Open Access (DOAJ) DOI: 10.5194/angeo-27-2623-2009

Correlations Between Subduction of Linear Oceanic Features and Arc Volcanism Volume Around the Pacific Basin

Claudia Adam, Valérie Vidal, Pablo Grosse, Mie Ichihara • Geochemistry, Geophysics, Geosystems (2022)

Abstract Arc volcanoes, created by magma generated from the dehydration of subducting slabs, show great variability in their sizes and along‐arc spatial distributions. In this study, we address a fundamental question, namely, how do subduct...

DOAJ Open Access (DOAJ) DOI: 10.1029/2022GC010553