Results 101 to 110 of about 1,959,097 (341)
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
Wheel–rail contact: experimental study of the creep forces–creepage relationships [PDF]
, 2014 The wheel–rail contact problem plays an important role in the simulation methods used to solve railway dynamics problems. As a consequence, many different mathematical models have been developed to calculate wheel–rail contact forces.
A. Alonso +5 more
core +2 more sources
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
Operators’ Load Monitoring and Management
Sensors, 2020 Due to the introduction of highly automated vehicles and systems, the tasks of operators (drivers, pilots, air traffic controllers, production process managers) are in transition from “active control” to “passive monitoring” and “supervising”.
Utku Kale +2 more
doaj +1 more source
A comparison of bearing life in new and refurbished railway axle boxes [PDF]
, 2001 A simple linear dynamical model shows that at normal running speeds of freight wagons, forced oscillations due to periodic track compliance are transferred to the overlying unsprung mass and significantly amplified. Due to these oscillations, a small gap
Broadbridge, P., Wake, G.
core
Mechanics & Industry, 2019 Nowadays, the condition-based maintenance is associated more and more with railway transport to improve the safety, availability, reliability and capacity of this transport system, and to reduce life cycle costs for the railway vehicles.
M. Dumitriu
semanticscholar +1 more source
Wildlife Biology, EarlyView.Urban green spaces experience a mix of natural and anthropogenic noises, which could disrupt the vocal communication of several species. This study investigated how such complex soundscapes affect the occurrence of Anaxipha pallidula, which communicates through calls, focusing on both sound level and quality.
Hiroki Mori, Takeshi Osawa
wiley +1 more source
Chengshi guidao jiaotong yanjiu[Objective] Controlling the biased wear of running tires is a critical technical challenge for SMT (straddle-type monorail transit) vehicles. It is necessary to study the control of biased tire wear when a SMT vehicle passes through curved segments of ...
LI Liheng +6 more
doaj +1 more source
Development of a Tram-Train wheel profile for dual-operation running [PDF]
, 2015 This paper explores the problematic interface between a Tram-Train vehicle and two very different railway infrastructures, detailing the analysis and design process required to develop an optimised wheel profile for dual operation running.
Allen, Paul, Crosbee, David
core
Wildlife Biology, EarlyView.Exploration of new wildlife surveying methodologies that leverage advances in sensor technology and machine learning has led to tentative research into the application of seismology techniques. This, most commonly, involves the deployment of a footfall trap – a seismic sensor and data logger customised for wildlife footfall.
Benjamin J. Blackledge +4 more
wiley +1 more source