Results 41 to 50 of about 6,544 (236)

Integrating Image Segmentation and Deep Learning to Improve Radio Frequency Propagation Models

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT This paper proposes a multi‐sensor approach to improve radio frequency (RF) propagation models, which play a key role in the rapidly expanding field of connected vehicle technology. Focusing on the 1‐ to 20‐GHz frequency range, which is critical for both satellite‐to‐vehicle and base station‐to‐vehicle communications, our study introduces a ...
Jonathan Israel, Xavier Boulanger, Vegard Arneson   +2 more
wiley   +1 more source

Exploration and prospect of the key technologies of the new generation mobile communication of intelligent railway

Dianxin kexue, 2023
The progress of mobile communication technology drives industrial changes in all walks of life.The carrying capacity of the existing railway mobile communication system is increasingly difficult to meet the rapid growth of modern railway networks even ...
Yulong LU, Haiyan SHEN, Junyao ZHANG, Xinglei YANG, Yalong XIE, Lingling YANG   +5 more
doaj   +2 more sources

Experimental And Numerical Studies Of Heat Transfer Characteristics Of The Wall Formed By Hollow Aluminum Extrusion And Insulation Material Layers

Journal of Applied Science and Engineering, 2022
The heat transfer characteristics of the wall formed by the aluminum extrusion and multi insulation material layers are studied experimentally and numerically.
LuWang, Xin Lu, Xiao-Jing Ma, Tian-PengWang, Liang-BiWang   +4 more
doaj   +1 more source

How Aligned Are Citizen Preferences With the 15‐Minute Cities Paradigm? An International Survey and K‐Means Clustering Study

Sustainable Development, EarlyView.
ABSTRACT This study investigates how citizens' mobility preferences align with the principles of the 15‐Minute City (15mC), addressing three research questions: what access times and transport modes citizens consider acceptable, whether mobility preference can be clustered, and which services are perceived incompatible with the 15mC.
Maria Perales‐Eguiluz, A. Divasson‐J, Nekane Ione Sainz Bedoya, Cruz E. Borges   +3 more
wiley   +1 more source

Opportunities for Australia Amid China's Carbon‐Neutral Transition: Input–Output Approach With Analysis of Australian Renewable Potential

Sustainable Development, EarlyView.
ABSTRACT A major transformation in China's energy mix is underway as the country pursues carbon neutrality by 2060, posing significant structural challenges for Australia as a major exporter of carbon‐intensive resources. This study examines the economic impacts of China's decarbonisation on Australia by applying static and dynamic input–output (IO ...
Jinyong (Edward) Sung
wiley   +1 more source

Is the cubic parabola really the best railway transition curve?

Open Engineering, 2021
In the current study, the authors tested two railway transition curves in terms of their usefulness for railway practice. The first curve was a cubic parabola – the curve most popular in railway engineering.
Zboinski Krzysztof, Woznica Piotr
doaj   +1 more source

Affordable and Clean Energy: CO2 Emissions, Resilience and Inequality

Sustainable Development, EarlyView.
ABSTRACT Sustainable development means building the resilience of both people and the planet. It includes implementing strategies which reduce emissions while also enabling more vulnerable households to transition to clean and affordable energy. This paper examines household CO2 emissions in Ireland to highlight those who emit most and least in key ...
Nessa Winston, Monika da Silva Pedroso, Ciarán Mac Domhnaill   +2 more
wiley   +1 more source

Evaluation of prestress losses in concrete beams using destructive and non‐destructive methods

Structural Concrete, EarlyView.
Abstract Over the past few decades, prestressing techniques have become essential in the construction of key structures, infrastructure, and bridges. The serviceability and safety of prestressed concrete (PC) elements are closely tied to the effectiveness of the prestressing process.
A. N. Consiglio, G. Muciaccia, G. Rosati
wiley   +1 more source

Optimizing ironing parameters in material extrusion (MEX) technology: enhancing efficiency and performance

Discover Applied Sciences
This study explores the optimization of ironing parameters in Material Extrusion (MEX) technology, specifically targeting improvements in the mechanical properties of polylactic acid (PLA) printed objects, with a focus on enhancing Ultimate Tensile ...
Hussein Alzyod, Peter Ficzere, Lajos Borbas   +2 more
doaj   +1 more source

Ungulate substrate use in fauna passages

Wildlife Biology, EarlyView.
Fauna passages are increasingly constructed at major roads and railways to mitigate the negative effects of infrastructure and traffic on wildlife. The function of such passages depends on design, including the construction materials, soil, and vegetation.
Milla Niemi, Jan Olof Helldin
wiley   +1 more source