Results 121 to 130 of about 1,834,169 (290)
Development of new rail repair profiles for different operating conditions
Вестник Научно-исследовательского института железнодорожного транспортаIntroduction. Currently, contact-fatigue defects prevail on rails with increased intensity of lateral and vertical rail wear. The authors consider it essential to develop rational repair profiles for sections with different track plan, as current repair ...
O. A. Suslow, I. V. Khromov
doaj +1 more source
Design Method of Rail Grinding Profile Based on Wheel Rail Contact Relationship
AbstractWhen the railway track is damaged, it is essential to grind it in in a timely manner to enhance the wheel-rail contact performance. This paper relies primarily on the rolling radius difference function as the main design basis, taking the expected distribution between the wheel and the rail as the boundary condition. In cases where the abscissa
Rui Song, Dilai Chen, Gang Shen
openaire +1 more source
Modelling the Dynamic Behaviour of the Wheel-Rail Interface by Using a Novel 3D Wheel-Rail Contact Model [PDF]
, 2011 Methods for multibody modelling and simulation should accurately replicate the dynamic behaviour of rail-wheel interface including precise values for wheel-rail contact positions. This paper studies the development of a novel 3-D wheel-rail contact model
Pislaru, Crinela +3 more
core
Safety Science and Technology, EarlyView.A LightGBM‐based ensemble learning framework with SHAP interpretability analysis was developed for predicting ceiling temperature in canyon‐wind tunnel fires. The model demonstrated robust generalization (R2 = 0.7476) under unseen extreme conditions, with fire‐source location identified as the primary factor driving temperature evolution.
Qinqin Zhu +5 more
wiley +1 more source
Dynamic Performance Analysis of Adaptability of Gauge Changeable High-speed EMUs
机车电传动, 2019 Gauge changeable high-speed EMUs need to adapt to gauge changes, rail profile and gradient changes, to meet the high-speed operation stability and other dynamic performance requirements.
Guodong LI +3 more
doaj
FY 2002, projects funded under 23 USC 130
Electronic coverage as of May 8, 2006: 2005-; Description based on: 2005; title from cover of PDF document (viewed May 8, 2006).; Report evaluates improvements made three years previously.; Harvested from the web on 5/10/06Addresses the progress being ...
Ohio Rail Development Commission.
core
The Augmented Leader: Four Competencies for AI‐Integrated Leadership Development in Higher Education
New Directions for Student Leadership, EarlyView.ABSTRACT Artificial intelligence (AI) is reshaping decision‐making and organizational life, yet leadership development in higher education has not evolved at the same pace. To address this gap, the article proposes the concept of the “augmented leader” and develops a four‐competency framework for AI‐integrated leadership: algorithmic literacy ...
David Lopez‐Lopez +3 more
wiley +1 more source
Summer Youth Program in Rail and Intermodal Transportation. [PDF]
NURail 2012-MTU-E01DTRT12-G-UTC18For the past five years, Michigan Technological University has been running a Summer Youth Program (SYP) in Rail and Intermodal Transportation. The program has seen continuous growth along with a diverse group of students,
Nelson, David +2 more
core
High Voltage, EarlyView.ABSTRACT This paper provides an overview of high‐temperature superconducting (HTS) cables in DC systems, with a focus on their deployment in high‐voltage DC (HVDC) networks. The assessment of HTS cable properties—such as extremely low electrical resistance, high current‐carrying capacity and a compact geometry—and their comparison with those of ...
Mohammad Hossein Mousavi +2 more
wiley +1 more source
Journal of Religious History, EarlyView.This essay argues that the Rocío hallazgo legend employs divine self‐placement to turn territorial uncertainty into sacred stewardship. The Virgin's miraculous refusal to move establishes the marshlands of Las Rocinas as a communal religious site, transforming a marginal and legally ambiguous area.
Adriano Duque
wiley +1 more source