نتایج جستجو برای: spindle vibration
تعداد نتایج: 76194 فیلتر نتایج به سال:
BACKGROUND Vibration to the head or neck excites vestibular and neck muscle spindle afferents. Can such vibrations improve the sensitivity of the subjective visual horizontal (SVH) test to chronic unilateral deficit of the vestibular system? DESIGN Controlled experimental study. SETTING Tertiary referral center. PATIENTS AND CONTROLS Thirteen healthy subjects and 23 patients with chronic ...
Due to manufacturing flaws or cyclic loading, cracks frequently appear in a rotating spindle system. These cracks markedly affect the dynamic characteristics in higher modes of the rotating machinery. For faster rotational speeds, especially for super-high-speed cutting, a spindle with magnetic bearings is necessary. However, most investigations into spindle system dynamic characteristics have ...
An attachable electromagnetic-energy-harvester driven wireless vibration-sensing system for monitoring milling-processes and cutter-wear/breakage-conditions is demonstrated. The system includes an electromagnetic energy harvester, three single-axis Micro Electro-Mechanical Systems (MEMS) accelerometers, a wireless chip module, and corresponding circuits. The harvester consisting of magnets with...
Regulating spinal motion requires proprioceptive feedback. While studies have investigated the sensing of static lumbar postures, few have investigated sensing lumbar movement speed. In this study, proprioceptive contributions to lateral trunk motion were examined during paraspinal muscle vibration. Seventeen healthy subjects performed lateral trunk flexion movements while lying prone with pelv...
The emergence of ultrasonic vibration–assisted polishing technology has effectively improved the machining accuracy and efficiency hard brittle materials in modern optical industry; however, material removal mechanism (UVAP) still needs to be further revealed. This paper focuses on glass (BK7), application axial vibration, atomization slurry; model was established. Based analysis relationship b...
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