Results 1 to 10 of about 158 (74)

Study on Curving Passing Performance of Rail Grinding Wagon Considering Car-Body Flexibility

open access: yes机车电传动, 2021
The passing speed is much lower than the design speed of curved track when rail grinding wagon performs the curve grinding operation, which results in the excess superelevation phenomenon.
Ziyang SONG, Maohai FU
doaj   +1 more source

Research of Curve Passing Performance of Track Car in Vehicle Group Chain Conveyor based on SIMPACK

open access: yesJixie chuandong, 2020
The vehicle group chain conveyor is the new kind of continuous material conveying equipment in bulk materials field. For its essential structure, which is the continuous track group car carrying the conveyor belt and relying on the rail runs.
Yang Li   +3 more
doaj   +1 more source

Curve-passing Performance of New Generation Single-axle Straddle Monorail Vehicle

open access: yesChengshi guidao jiaotong yanjiu
[Objective] The curve-passing performance of a new-model single-axle straddle monorail vehicle on small-radius non-linear curve tracks and linear curve tracks is researched and analyzed.
Guomin LYU   +5 more
doaj   +2 more sources

Curve Passing Performance Analysis and Improvementfor PGM-48 Rail Grinding Car

open access: yes机车电传动, 2013
Rail grinding vehicle simulation model was built with SIMPACK dynamics software, and lateral wheelset force, wheel loadreduction rate, derailment coefficient of the rail grinding car through small radius curve under the operating condition were ...
GU Jian-hua, YANG Feng, LIU Qi-ling
doaj   +1 more source

Influence of Wheelset Structural Flexibility on High-speedEMUs Curve-passing Performance

open access: yes机车电传动, 2013
In order to study the influence of the torsional mode, bending mode and umbrella mode of the wheelsets on the vehicle curvepassingperformance, the vehicle-track system dynamics models were established, in which, the wheelsets structures were considered ...
XU Chuan-lai, MI Cai-ying
doaj   +1 more source

Adaptive Curve Passing Control in Autonomous Vehicles with Integrated Dynamics and Camera-Based Radius Estimation

open access: yesVehicles
Autonomous vehicles frequently encounter performance degradation during high-speed cornering due to excessive speed and lateral acceleration, potentially leading to collisions or rollovers.
Bin Wang, Zhichuang Liao, Sijing Guo
doaj   +3 more sources

Performance Analysis of Improved Clutter-Map MTD Proces-sor for both Slowly & Tangential Moving Targets (STMT). [PDF]

open access: yesInternational Journal of Telecommunications, 2022
Detection performance of slowly and tangential moving targets (STMT) is a considerable problem in modern radar systems, especially in unwanted reflected sig-nals.
Ibrahim Metwally   +2 more
doaj   +1 more source

Study on Gage Widening Methods for Small-Radius Curves

open access: yesApplied Sciences, 2021
Existing gage widening standards and the influence of gage widening on the curve passing performance of trains and rail wear were examined. The existing gage widening theory can determine the minimum curve radius that needs to be widened, the widening ...
Pu Wang   +3 more
doaj   +1 more source

Research on Small Radius Curve Negotiation and Key Parameters of Tram

open access: yes机车电传动, 2021
To research the small radius curve negotiation of the tram, the motion equation of a free wheelset passing through curve was firstly derived. In theoretically, the influence of the wheel-rail contact friction coefficient, the gauge distance and the curve
Qunsheng WANG   +4 more
doaj  

Performance evaluation of QuantStudio 1 plus real-time PCR instrument for clinical laboratory analysis: A proof-of-concept study

open access: yesPractical Laboratory Medicine, 2023
Objective: The real-time PCR system is one of the most powerful research tools available in the life sciences field. The aim of this study was to preliminarily evaluate the analytical performance of QuantStudio 1 Plus real-time PCR system (QS 1 plus) for
Ziran Wang   +8 more
doaj   +1 more source

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