Fastening failures have frequently been found on China high-speed railway curved tracks in recent years. Thus the influence of fastening train-track interaction track needs to be analyzed. A train-curved slab model is built, which real shape rail considered and modeled with reduced beam (RBM) theory, slabs are four-nodes Kirchhoff-Love plate elements. The present validated at first different tr...

BACKGROUND Gender differences in passive frontal plane knee stiffness may contribute to the increased anterior cruciate ligament injury rate in females. Gender-based stiffness differences have been attributed to anthropometric variations, but little data exist describing this relationship. Furthermore, sex hormone levels appear to influence joint stiffness, but the differential effects of insta...

Matrix stiffness strongly influences growth, differentiation and function of adherent cells. On the macro scale the stiffness of tissues and organs within the human body span several orders of magnitude. Much less is known about how stiffness varies spatially within tissues, and what the scope and spatial scale of stiffness changes are in disease processes that result in tissue remodeling. To b...

Ground-borne vibration excited by metro traffic is becoming a more and more important problem for the rapidly developing transport system in urban areas and increasing public concern about environmental problems. In order to attenuate the vibration influence down to an acceptable level, floating slab track have been applied worldwide on metro line. An analytical dynamic model is employed in thi...

The swelling of natural fibers is often a drawback when considering structural applications biocomposites. However, this mechanism represents the key towards development Hygromorph BioComposites (HBC). This investigation aims to understand hydroexpansion 3D-printed continuous flax-fiber reinforced biocomposites and effect matrix stiffness. Four flax fiber-based were selected with wide range Wat...

Objective: The purpose of this study was to investigate the effects of lumbar rotational manipulation and lumbar central posteroanterior mobilization on lumbar bending stiffness and flexion and extension range of motion (ROM). Methods: A samesubject, repeated-measures, crossover design was used using 32 asymptomatic subjects (16 female and 16 male; mean [SD] age, 25.5 [4.5] years; weight, 65.7 ...