Results 71 to 80 of about 9,298 (200)
Analysis of a stochastic 2D–Navier-Stokes model with infinite delay [PDF]
, 2019 Some results concerning a stochastic 2D Navier-Stokes system when the external forces contain hereditary characteristics are established. The existence and uniqueness of solutions in the case of unbounded (infinite) delay are first proved by using the ...
Caraballo Garrido, Tomás, Liu, Linfang
core
Abstract and Applied Analysis, Volume 2025, Issue 1, 2025.Fractional stochastic differential equations with memory effects are fundamental in modeling phenomena across physics, biology, and finance, where long‐range dependencies and random fluctuations coexist, yet their stability analysis under non‐Lipschitz conditions remains a significant challenge, particularly for systems involving Riemann–Liouville ...
Mohsen Alhassoun +2 more
wiley +1 more source
Journal of the American Medical Association, 1903 Not long ago a prominent clinician of Chicago requested the writer to contrive an apparatus by which chest contours could be accurately measured and recorded. Such an instrument was said to be needed by those who specialize in diseases of the thorax or who have any occasion to record thoracic conditions for statistical or other purposes.
openaire +1 more source
Research on Machine Vision–Based Intelligent Tracking System for Maintenance Personnel
Journal of Advanced Transportation, Volume 2025, Issue 1, 2025.Upon returning to the depot, rail transit vehicles require necessary maintenance. The working condition of train maintenance personnel directly impacts the safety of both staff and equipment. Therefore, effective monitoring and control of activities within train roof access platforms are essential.
Yinglin Ma +4 more
wiley +1 more source
Bionic Optimization and Aerodynamic Performance Analysis of High-speed Train Pantograph
Journal of Applied Science and EngineeringThe aerodynamic drag of a high-speed train has a significant impact on its energy consumption. At high speeds, the pantograph is one of the primary sources of aerodynamic drag for the train.
Qi Zhou, Zhenfeng Wu, Longhui Zhu
doaj +1 more source
Holdable Haptic Device for 4-DOF Motion Guidance
, 2019 Hand-held haptic devices can allow for greater freedom of motion and larger workspaces than traditional grounded haptic devices. They can also provide more compelling haptic sensations to the users' fingertips than many wearable haptic devices because ...
Okamura, Allison M. +3 more
core +1 more source
Stability of Neutral Delay Differential Equations and Their Discretizations [PDF]
, 2014 Disertační práce se zabývá asymptotickou stabilitou zpožděných diferenciálních rovnic a jejich diskretizací. V práci jsou uvažovány lineární zpožděné diferenciální rovnice s~konstantním i neohraničeným zpožděním.
Dražková, Jana
core
Statistical identification of geometric parameters for high speed train catenary [PDF]
, 2014 Pantograph/catenary interaction is known to be strongly dependent on the static geometry of the catenary, this research thus seeks to build a statistical model of this geometry.
BALMES, Etienne +2 more
core +2 more sources
IEEE Access, 2019 In high-speed railways, the quality of current collection of high-speed train is directly determined by the contact force between the contact wire of the catenary and the registration strip of the pantograph.
Jing Zhang +4 more
doaj +1 more source
机车电传动, 2017 A Generalized dynamic modeling method was proposed for pantograph-catenary system based on least squares support machine (LSSVM), and the pantograph-catenary model identification and simulation were carried out.
Huang Yuping +3 more
doaj