Results 21 to 30 of about 805,461 (159)
MATEC Web of Conferences, 2019 The geometric relation between a wheelset and a rail is assessed with the help of geometric characteristics. Geometric characteristics are: equivalent conicity function, delta r function placement of contact points of a wheelset and a rail, tangent gamma
Gerlici Juraj, Lack Tomáš
doaj +1 more source
Wheelset/rail geometric characteristics and contact forces assessment with regard to angle of attack
MATEC Web of Conferences, 2019 The geometric relation between a wheelset and a rail is assessed with the help of geometric characteristics. Geometric characteristics are: equivalent conicity function, delta r function placement of contact points of a wheelset and a rail, tangent gamma
Lack Tomáš +2 more
doaj +1 more source
Elasticity‐Driven Periodic Polarization Patterns in a Chiral Ferroelectric Nematic Fluid
Advanced Materials, EarlyView.Chiral polar ferroelectric nematic fluids exhibit spontaneous formation of stripe, square, and hexagonal polarization textures under confinement. Controlled by thickness and anchoring, these patterns produce spatially modulated nonlinear optical responses.
Anej Sterle +11 more
wiley +1 more source
ANALYSIS ON WHEEL-RAIL MATCHING CHARASTERISTICS OF HIGH-SPEED RAILWAY
Jixie qiangdu, 2022 To improve the wheel-rail relationship of high-speed EMUs due to the deterioration of wheel treads central hollow wear, wheel-rail matching characteristics of various treads were analyzed.
YI MeiLing
doaj
Analysis of wheel wear characteristics of high-speed train based on field data
Nihon Kikai Gakkai ronbunshu, 2019 A wheel/rail profile wear is a factor that affects the behavior of railway vehicles such as riding comfort, running stability, running safety and maintenance schedule.
Satoshi HARA +2 more
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Advanced Optical Materials, EarlyView.This work presents an electrically controllable approach to spin–valley polarization in monolayer WS2 by integrating it with a dual‐mode liquid crystal laser. Applying an external field triggers phase transitions that switch the laser emission between helicity‐defined band‐edge lasing and unpolarized random lasing.
Yu‐Chuan Tsao +3 more
wiley +1 more source
Land Degradation &Development, EarlyView.ABSTRACT Balancing food security and ecological sustainability has become a critical challenge for land governance in rapidly urbanizing countries. China has successfully maintained national cultivated land quantity through a comprehensive farmland protection regime.
Yuzhe Wu, Zhuofan Li, Xinyan Shen
wiley +1 more source
Hyperbolic Rotations With Hybrid Numbers
Mathematical Methods in the Applied Sciences, EarlyView.ABSTRACT This paper presents a geometric and algebraic analysis of hyperbolic hybrid numbers, which combine structural features of the complex, dual, and hyperbolic number systems. Based on the algebraic properties of the hybrid number set, hyperbolic rotations in both the plane and space are investigated.
İskender Öztürk +2 more
wiley +1 more source
Geometrical Optimization Searching Algorithm for Evaluating Conicity Error
, 2010 A new algorithm of evaluating conicity error, named as geometrical optimization searching algorithm (GOSA), has been presented, according to the geometric characteristics of conicity error.
Yu Jun Xue +4 more
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Calibrating and testing tissue equivalent proportional counters with 37Ar [PDF]
, 1994 A method for testing and calibrating tissue equivalent proportional counters with37Ar is described.37Ar is produced by exposure of argon in its normal isotope composition to thermal neutrons. It is shown that - up to volume ratios of 0.01 of argon to the
Kellerer, Albrecht M. +2 more
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