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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

Feasibility of Residual Stress Nondestructive Estimation Using the Nonlinear Property of Critical Refraction Longitudinal Wave

Yu-Hua Zhang, Xin-Xin Li, Xiang-Hong Wang, Zhen-Feng Huang et al. • Advances in Materials Science and Engineering (2017)

Residual stress has significant influence on the performance of mechanical components, and the nondestructive estimation of residual stress is always a difficult problem. This study applies the relative nonlinear coefficient of critical ref...

DOAJ Open Access (DOAJ) DOI: 10.1155/2017/6274054

Separate DOD and DOA Estimation for Bistatic MIMO Radar

Lin Li, Fangfang Chen, Jisheng Dai • International Journal of Antennas and Propagation (2016)

A novel MUSIC-type algorithm is derived in this paper for the direction of departure (DOD) and direction of arrival (DOA) estimation in a bistatic MIMO radar. Through rearranging the received signal matrix, we illustrate that the DOD and th...

DOAJ Open Access (DOAJ) DOI: 10.1155/2016/9170403

Unsteady Aerodynamic Characteristics of a High-Speed Train Induced by the Sudden Change of Windbreak Wall Structure: A Case Study of the Xinjiang Railway

Zheng-Wei Chen, En-Ze Rui, Tang-Hong Liu, Yi-Qing Ni et al. • Applied Sciences (2022)

Under strong winds, the effect of sudden windbreak transition (WT) on high-speed trains is severe, leading to a deterioration of train aerodynamics and sudden yawing motion of the car body. To address these problems, based on a high-speed t...

DOAJ Open Access (DOAJ) DOI: 10.3390/app12147217

Surface Reconstruction Adopting Laser Plane of Linear Path System Registered by Parallel Constraint

Guan Xu, Fang Chen, Xiaotao Li, Junyi Chen • IEEE Access (2018)

A surface reconstruction technology, which is contributed from the parallel constraint between two laser planes, is introduced and achieved by a laser projector guided by a linear path system. The projection geometry is constructed by the p...

DOAJ Open Access (DOAJ) DOI: 10.1109/ACCESS.2018.2851948

Spatiotemporal Speed Planning for Multi-Vehicle Cooperative Driving With Dynamic Following Relationships

Liuda Yi, Liguo Zang, Haiyan Sun, Yuxing Bai et al. • IEEE Open Journal of Intelligent Transportation Systems (2026)

In Autonomous Valet Parking scenarios, multiple vehicles operate cooperatively in low-speed environments where the leading-vehicle constraint may be dynamically reconstructed due to path transitions. Under such conditions, conventional spee...

DOAJ Open Access (DOAJ) DOI: 10.1109/OJITS.2026.3747268

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

PROPOSING A FRAMEWORK FOR ESTABLISHING A GREEN ENERGY LOGISTIC HUB: AN EMPIRICAL STUDY IN EGYPT

Shady Magdy Mahmoud, Mostafa Abdel Geliel, Sara El Gazzar • International Maritime Transport and Logistic Journal (2025)

The International Energy Agency (IEA) has emphasized the opportunity to create "hydrogen hubs" to reduce costs associated with low-carbon hydrogen pathways. A "hub" is a region capable of aggregating hydrogen demand, typically found in coas...

DOAJ Open Access (DOAJ) DOI: 10.21622/MARLOG.2025.14.1.41

Characterizing particle crushing behavior of dry granular soils by acoustic emission

Wenli Lin, Shuyu Tian, Deqi He, Xiao Kang et al. • Journal of Rock Mechanics and Geotechnical Engineering (2026)

This study investigates particle crushing mechanisms in granular soils during shearing through staged triaxial compression experiments performed at prescribed axial strains and varying confining stresses, integrating a high-performance acou...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.jrmge.2025.07.039

Numerical investigation of corroded middle‐high strength pipeline subjected to combined internal pressure and axial compressive loading

Linlin Lu, Lecai Liang • Energy Science & Engineering (2021)

Abstract Buried oil and gas pipelines may face the threat of geological disasters such as landslides, faults, and floods. However, long‐term buried oil and gas pipelines often have corrosion defects, which bring greater challenges to the sa...

DOAJ Open Access (DOAJ) DOI: 10.1002/ese3.830

Machine Learning–Based Prediction of Organic Solar Cell Performance Using Molecular Descriptors

Mohammed Saleh Alshaikh • International Journal of Emerging Research in Engineering, Science, and Management (2025)

The performance of Organic Solar Cells (OSCs) is intrinsically linked to the molecular, electronic, and structural properties of donor and acceptor materials. This study employs various machine learning techniques, namely the Generalized Re...

DOAJ Open Access (DOAJ) DOI: 10.58482/ijeresm.v4i4.4

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

What is Transportation Engineering

Michael Knödler • ScholarWorks@UMassAmherst (University of Massachusetts Amherst) (2010)

"The branch of engineering which applies technology, science, and human factors to the planning, design, operations and management of roads, streets, bikeways, highways, their networks, terminals, and abutting lands” The objective is to pro...

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