Results 21 to 30 of about 5,992 (216)

Multi-body dynamics analysis for the wear of front-rod bearing during the switching operation of railroad switches (Effect of adjustment condition)

open access: yesNihon Kikai Gakkai ronbunshu, 2023
Since the wear of front-rod bearings of railroad switches induce the switch failure, wear evaluation is indispensable. On the other hand, the various parts of railroad switches are adjusted so as to avoid derailment.
Sohei SHIGEMORI   +6 more
doaj   +1 more source

New Insights from Multibody Dynamic Analyses of a Turnout System under Impact Loads

open access: yesApplied Sciences, 2019
A railway turnout is an essential infrastructure for managing railway traffic flexibility. In contrast, it imposes restrictions on train operations such as lower operational speeds through the turnout due to the complex movements of trains over the ...
Mehmet Hamarat   +3 more
doaj   +1 more source

Study on Performance Optimization and Feasibility of No.9 Turnout with 1520 mm Gauge in China

open access: yesApplied Sciences
To address the issues of poor geometric dimension retention, short component lifespan, and heavy maintenance workload of the 1520 mm gauge 50 kg/m rail No.9 turnout, a new design was proposed for the 1520 mm gauge 60 kg/m rail No.9 turnout.
Zhiheng Li   +6 more
doaj   +1 more source

Turnout Design of Same-side Curved Track for Straddle Tourism Monorail

open access: yesChengshi guidao jiaotong yanjiu
Objective The tourism rail project at a scenic area is a single-line route. To enhance tourists transportation efficiency, it is required to arrange two sets of single-opening curved track turnout symmetrically within the existing curved sections ...
WU Shuqiang
doaj   +1 more source

Engineering solutions to improve conditions and smoothness of train traffic on turnout switches

open access: yesВестник Научно-исследовательского института железнодорожного транспорта
Introduction. The currently used turnout switches geometries provided for the development and serial production of the main types of turnout equipment that ensure the transport process on the Russian railways.
Boris E. Glyuzberg   +2 more
doaj   +1 more source

Turnout Fault Diagnosis through Dynamic Time Warping and Signal Normalization

open access: yesJournal of Advanced Transportation, 2017
Turnout is one key fundamental infrastructure in the railway signal system, which has great influence on the safety of railway systems. Currently, turnout fault diagnoses are conducted manually in China; engineers are obliged to observe the signals and ...
Shize Huang   +5 more
doaj   +1 more source

Features of mathematical modeling of dynamic processes of car passing railroad turnouts

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2020
Dimensions and tolerances in the “wheelset — railway track” system are interconnected, since the normative values of geometric parameters and shape of the elements of the wheelsets and the track's upper structure are directly de pendent. In 2018– 2019 in
Yu. S. Romen   +3 more
doaj   +1 more source

Inpatient Exposure, Confidence, and Knowledge in Pediatric Hematology/Oncology: Evaluating General Pediatric Residents During 2025 ACGME Curriculum Change

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background General pediatricians often evaluate hematologic and oncologic presentations before subspecialty consultation, yet the 2025 Accreditation Council for Graduate Medical Education (ACGME) pediatric requirements reduce inpatient pediatric hematology/oncology (PHO) time, raising questions about resident readiness.
Colburn Yu, Rohini Jain
wiley   +1 more source

Forecasting the Dialysis Burden in Japan: Validation‐Based Projections of Prevalence and Incidence Through 2050

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Japan has one of the highest dialysis prevalence rates worldwide and a shrinking, aging population. Whether dialysis burden has entered a sustained post‐peak phase or whether recent declines partly reflect pandemic‐related disruptions remains uncertain.
Hatice Şahin   +2 more
wiley   +1 more source

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

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