نتایج جستجو برای: motorized modes
تعداد نتایج: 112440 فیلتر نتایج به سال:
This paper presents a method to investigate the characteristics of a high-speed motorized spindle system. The geometric quality of high-precision parts is highly dependent on the dynamic performance of the entire machining system, which is determined by the interrelated dynamics of machine tool mechanical structure and cutting process. This performance is of great importance in advanced, high-p...
In a motorized spindle, due to the complexity of the system and nonlinear relationship between features and types of faults, it is difficult and inefficient to use traditional methods or physical models for the fault diagnosis. This paper focuses on the research on applying Radial Basis Function (RBF) Networks for fault detection and classification in the motorized spindle. As a data driven mod...
Comparing walking accessibility variations between groceries and other retail activities for seniors
This paper aims to compare walking accessibility levels between groceries and other types of retail for seniors, examining whether patterns are uniform (or not). The city Granada, Spain served as case study. First, a questionnaire was administered with persons older than 55 years, assessing their willingness reach different opportunities on foot. A total 202 valid responses were obtained (171 f...
This document, approved by the Rehabilitation Engineering & Assistive Technology Society of North America (RESNA) Board of Directors in March 2007, shares typical clinical applications and provides evidence from the literature supporting the use of power wheelchairs for children.
Knock twice before invading eisseria meningitidis , also known as meningococcus, is a pathogen with a nasty habit of forcing normally nonphagocytic endothelial cells to engulf it, allowing the bacterium to penetrate cellular barriers. Hoffmann et al. now demonstrate on page 133 that N. meningitidis activates two distinct signaling pathways in host cells to cause actin cytoskeleton reorganizatio...
PURPOSE To develop a prototype instrument that uses adaptive optics to introduce virtually any desired aberration profile in a subject's eye. At the same time, the instrument could be used to evaluate the subject's spatial vision for each controlled aberration profile. This "aberration testing station" or "visual simulator" allows us to study the relationship between specific aberrations and vi...
OBJECTIVE The aims of this study were to investigate outcomes of older people's use of powered wheelchairs and risk factors for negative outcomes. DESIGN The study was a cross-sectional interview-study including 111 powered wheelchair users over 65 years of age. RESULTS All participants used their powered wheelchair in the summer; nearly all users regarded it as important and found that it ...
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