Passive grinding is a new rail strategy. In this work, the influence of pressure on removal behaviors material in passive was investigated by using self-designed simulator. Meanwhile, surface morphology and wheel were observed, force temperature measured during experiment. Results show that increase leads to rise rate, i.e., efficiency, roughness, residual stress, temperature. Inversely, enhanc...

We hypothesized that voluntary wheel running results in increased secretion of oxytocin, a peptide involved in the stress response. An additional hypothesis was that prolonged exercise affects oxytocin levels in the heart, which is in line with the potential role of oxytocin in cardiovascular functions. Voluntary wheel running lasted 3 weeks and daily running distances increased progressively r...

OBJECTIVE This paper's first objective is to determine whether motor priming assistance (consisting of directional steering wheel vibrations) can be of some benefit compared with more traditional auditory (lateralized sound) or vibratory (symmetric steering wheel oscillation) warning devices. We hypothesize that warning devices favor driving situation diagnosis, whereas motor priming can improv...

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The beginning of the modern period in the pursuit of radical human enhancement and longevity can be traced to fin-de-siècle/early twentieth-century scientific and technological optimism and therapeutic activism. The works of several authors of the period – Fedorov, Stephens, Bogdanov, Nietzsche and Finot – reveal conflicting ideological and social pathways toward the goals of human enhancement ...

There are potential interactions among approaches to reduce or prevent certain accident causes. Given the overlapped safety benefits of various measures for accident prevention, it is necessary to identify their interactions and quantify the safety effectiveness of combined accident prevention strategies. This study focuses on strategies to prevent broken rails and broken wheels, respectively. ...

INTRODUCTION: There is increasing interest in studying functional and cellular effects of environmental stimuli for better intervention in neurological rehabilitation [1, 2]. Recent studies have been using BOLD-fMRI to detect the neural activity in living animals [3] and human [4]. However it is technically difficult to apply BOLD-fMRI to nonrestrained animals due to its extreme susceptibility ...