作者: 蛙鳴聲 時間: 2025-3-21 21:54 作者: 裝入膠囊 時間: 2025-3-22 03:16
Xiaoyan LeiComprehensively covers theories, algorithms and applications of high-speed railway track dynamics in the 2nd edition.Covers highly efficient numerical methods for non-linear dynamic analyses of the ve作者: Fortuitous 時間: 2025-3-22 04:57
Advances in High-speed Rail Technologyhttp://image.papertrans.cn/h/image/426508.jpg作者: fluoroscopy 時間: 2025-3-22 12:44 作者: 奴才 時間: 2025-3-22 15:05 作者: assent 時間: 2025-3-22 19:15 作者: 口味 時間: 2025-3-23 00:46
Xiaoyan Leix kinetic systems are frequently observed and need to be solved. In this contribution, we give our particular way of studying systems of organic molecules where we describe how a quantum yield of fluorescence (in fluid or rigid solution, or in film), phosphorescence, singlet oxygen and intersystem c作者: ALLAY 時間: 2025-3-23 02:07 作者: JOT 時間: 2025-3-23 06:58 作者: notice 時間: 2025-3-23 12:33 作者: Chromatic 時間: 2025-3-23 16:42
Xiaoyan Leiin such matter, the internal absorption of that matter gives a sense of radiant transformation into other forms of energy and essentially distinguishes any obscure regions absorbing radiation in the otherwise transparent medium. Absorbed light can be directly measured via the transformation of its r作者: 壓艙物 時間: 2025-3-23 20:05 作者: Munificent 時間: 2025-3-24 00:21
Xiaoyan Leial radiation, and the underlying principles of photometry an.Applied Photometry, Radiometry, and Measurements of Optical Losses. reviews and analyzes physical concepts of radiation transfer, providing quantitative foundation for the means of measurements of optical losses, which affect propagation a作者: ablate 時間: 2025-3-24 02:30
Xiaoyan Leirs of light beams via energy and power extents. Owing to the finiteness of the dimensions and time constants of visual and radiometric detectors, the observation and the measurement processes are defined not only by wave amplitudes of the electromagnetic oscillations observed, but also by the detect作者: Nebulizer 時間: 2025-3-24 06:57 作者: 謊言 時間: 2025-3-24 11:45
Track Dynamics Research Contents and Related Standards,ion between the vehicle and the track has become more complex. Accordingly, the train running safety and stability are more affected by increased dynamic stresses. High Speed Railway Track Dynamics lays a good foundation for investigating the complicated wheel-rail relationship and interaction mecha作者: epidermis 時間: 2025-3-24 15:26
Analytic Method for Dynamic Analysis of the Track Structure,s occurrence is especially serious under the high speed operation. Studies have shown that when train speed reaches or exceeds some critical velocities, there would be surface waves induced by high speed trains causing strong vibration of the track structure. In order to study the mechanism of the s作者: backdrop 時間: 2025-3-24 20:18 作者: temperate 時間: 2025-3-24 23:15
Analysis of Vibration Behavior of the Elevated Track Structure,ation, small settlement and low construction and operation cost, which can effectively alleviate urban traffic congestion. While the disadvantage is that its vibration noise has a certain influence on the environment along the line. In this chapter, the analytic model and the three-dimensional finit作者: Intact 時間: 2025-3-25 06:50 作者: Migratory 時間: 2025-3-25 08:21
Vertical Vibration Model for the Track Structure and the Vehicle,d the key to solve the complicated dynamic interactions between the vehicle and the track is to construct a reasonable model for the track structure and the vehicle. As the basis for establishing the dynamic analysis model of various vehicle-track coupling systems, the basic concept of dynamic finit作者: 真實的你 時間: 2025-3-25 15:20
,A Cross-Iteration Algorithm for Vehicle–Track Nonlinear Coupling Vibration Analysis,ial equation set, the efficiency of the conventional algorithm for solving the large and complicated differential equation set is not satisfied. In this chapter, the cross-iterative algorithm for solving the dynamic finite element equation of nonlinear vehicle-track coupling system is described, and作者: jumble 時間: 2025-3-25 18:06 作者: 忍耐 時間: 2025-3-25 20:24 作者: 過去分詞 時間: 2025-3-26 03:24
,Dynamic Analysis of the Vehicle–Track Coupling System with Finite Elements in a Moving Frame of Refncated boundary of the track structure on the solution. In this chapter, the slab track element model and the associated algorithm in a moving frame of reference for dynamic analysis of the vehicle-track coupling system are presented. Three-layer continuous beam model for the slab track is developed作者: Pathogen 時間: 2025-3-26 05:19
,Model for Vertical Dynamic Analysis of the Vehicle–Track–Subgrade–Ground Coupling System,effects of subgrade and ground have not been considered and the subgrade is simplified into viscoelastic damping elements. In fact, an accurate analysis of the vehicle dynamic action on the track structure has to consider the interactions among the vehicle, the track, the subgrade and the ground. In作者: Charlatan 時間: 2025-3-26 10:19
Analysis of Dynamic Behavior of the Train, Ballast Track and Subgrade Coupling System,s. When the high speed train moves over the region of vertical stiffness with abrupt change, additional wheel-rail contact force will be generated obviously. In this chapter, the dynamic analysis model of the train-ballast track-subgrade coupling system is developed based on the model and the algori作者: 入會 時間: 2025-3-26 14:44
Analysis of Dynamic Behavior of the Train-Slab Track-Subgrade Coupling System,sing the models and algorithms of vehicle and track elements. Stiffness and damping of the rail pad and fastener, stiffness and damping of the CA mortar, and stiffness and damping of the subgrade are selected for parameter analysis. Results of the parameter analysis show among the six parameters, st作者: Pelago 時間: 2025-3-26 17:11
Analysis of Dynamic Behavior of the Transition Section Between Ballast Track and Ballastless Track,ck from the ballast track, additional wheel-rail contact force will be generated. According to the investigation of the transition section, a series of problems occurred in the transition section from the ballast track to the ballastless track under the long-term effect of the train load, resulting 作者: misshapen 時間: 2025-3-26 21:45
Analysis of Medium and High-Frequency Vibration for Track Structure,ment method has a better effect on low-frequency structural vibration analysis, but it is not suitable for medium and high-frequency analysis of structural vibration. This chapter establishes a vehicle-track structure frequency domain vibration model, in which the track structure is simulated as thr作者: 漫步 時間: 2025-3-27 01:35 作者: 幼稚 時間: 2025-3-27 08:53
Xiaoyan Lei ozone depletion. Two important distinct, but interconnected, applications of photochemistry are in photocatalytic treatment of wastes and in solar energy conversion. Semiconductor photochemistry plays an impor978-94-007-9584-6978-90-481-3830-2作者: ONYM 時間: 2025-3-27 11:47 作者: OMIT 時間: 2025-3-27 17:09
Book 2022Latest editioneffectively introduce readers to the latest research findings and developments in high-speed railway track dynamics. It offers a valuable resource for researchers, postgraduates and engineers in the fields of civil engineering, transportation, highway and railway engineering..作者: 手榴彈 時間: 2025-3-27 19:06
Xiaoyan Leioping approaches to treatment. This comprehensive resource fills the unmet need for a practical, hands-on book that is both detailed and can work as a quick reference...This is an ideal guide for academic nephrologists, private practice nephrologists, NPs, PAs, nurses, fellows, and residents..978-3-030-70899-3978-3-030-70897-9作者: A保存的 時間: 2025-3-27 23:40 作者: Trigger-Point 時間: 2025-3-28 04:27 作者: 嚴厲批評 時間: 2025-3-28 08:03 作者: judiciousness 時間: 2025-3-28 13:03 作者: 兇殘 時間: 2025-3-28 16:10 作者: 先兆 時間: 2025-3-28 22:11 作者: 有角 時間: 2025-3-29 02:32 作者: heterogeneous 時間: 2025-3-29 05:26 作者: AWRY 時間: 2025-3-29 08:55
Xiaoyan Leitic permeability, and σ is the specific conductivity of the medium. The integral in Eq. 1.1 identifies the flow of energy crossing the boundary surface . reached by the optical wave. Thus, when dealing with a transfer of energy of optical radiation in the absence of moving elements or conductors, th作者: 脫水 時間: 2025-3-29 12:14 作者: pulmonary-edema 時間: 2025-3-29 17:59 作者: 潛移默化 時間: 2025-3-29 23:02
Model and Algorithm for Track Element and Vehicle Element,e track-subgrade system once. And in the following computation of each time step, it only needs to assemble the stiffness matrix, mass matrix and damp matrix of the vehicle element into the global stiffness, mass and damping matrices of the track-subgrade system. Therefore, computational efficiency 作者: arthroscopy 時間: 2025-3-30 00:41
,Dynamic Analysis of the Vehicle–Track Coupling System with Finite Elements in a Moving Frame of Ref point in the numerical model, thereby eliminating the need for keeping track of the contact point with respect to individual elements. In addition, the moving vehicle will never run out of the truncated model.作者: ostrish 時間: 2025-3-30 04:30
Analysis of Medium and High-Frequency Vibration for Track Structure,ibration responses of the vehicle and the track structure in the frequency domain are obtained. The advantages of the spectral element method focus on the flexibility of modeling, the generality of the algorithm and the simplicity of programming, and the achievement of high computational accuracy an作者: Euphonious 時間: 2025-3-30 09:37 作者: faddish 時間: 2025-3-30 14:29
Analytic Method for Dynamic Analysis of the Track Structure,stablishing the continuous elastic foundation beam model of the track structure, the characteristics of the ground wave induced by high-speed train and the strong vibration of the track, and the influence of the track stiffness on track critical speed and the track vibration are investigated by the analytical method in this chapter.作者: Angiogenesis 時間: 2025-3-30 19:35
Analysis of Dynamic Behavior of the Train, Ballast Track and Subgrade Coupling System,ts of high-speed railways, parameter analyses are performed to investigate the influences of the train speeds, the track foundation stiffness, and the transition irregularity on the dynamic responses of the vehicle and the track structure in track transitions.作者: Feckless 時間: 2025-3-30 21:35
Analysis of Dynamic Behavior of the Train-Slab Track-Subgrade Coupling System,ll subgrade stiffness may induce huge dynamic response of the track structure. Therefore, increasing the subgrade stiffness can contribute to track safety and track stability. The parameter analysis results can provide guidance for optimizing structural parameters of the slab track and designing of the track structure.作者: modish 時間: 2025-3-31 02:02 作者: Scintillations 時間: 2025-3-31 06:04
