The characteristics of lead-acid batteries for wheelchairs in terms of a new empirical equation for the capacity, application of the Palmgren-Miner Rule for sizing the battery, and the effect of depth of discharge on the life cycles is presented. A brief section about selecting an economical battery for an electric wheelchair is included.

Abstract In the ostensibly unceasing prioritization of motorized infrastructure, walking has remained a ubiquitous mode mobility for large proportion Nairobi’s urban commuters. Planning historically been at higher level consideration although much larger percentage population travels on foot. The conspicuous pedestrian and continues to be masked under spotlight motor vehicle with discernible ou...

Traditionally, in developing non-motorized crash prediction models, safety researchers have employed land use and urban form variables as surrogate for exposure information (such pedestrian, bicyclist volumes vehicular traffic). The quality of these models is affected by the lack “true” data. High-resolution modeling frameworks such activity-based or trip-based approach could be pursued evaluat...

The thermal characteristics of a motorized spindle are the main determinants of its performance, and influence the machining accuracy of computer numerical control machine tools. It is important to accurately predict the thermal field of a motorized spindle during its operation to improve its thermal characteristics. This paper proposes a model to predict the temperature field of a high-speed a...

3 The provision of accurate bus arrival information is critical to encourage more people to use 4 public transport and alleviate traffic congestion. Developing a prediction scheme for bus travel 5 times can provide such information. Prediction schemes can be data driven or may use a 6 mathematical model that is usually less data intensive. This paper compares the performance of 7 two methods – ...

This study determined and compared wheelchair mobility patterns for older adults during an organized sporting event and within their community. In July 2008, 39 veterans participating in the 28th National Veterans Wheelchair Games (Omaha, Nebraska) completed the study. Of these, 26 were manual wheelchair and 13 were power wheelchair users. We collected wheelchair-related mobility data using whe...

The equilibrium position of active maglev motorized spindle had great influence on the industrial processing accuracy, in order to improve the performance of active maglev motorized spindle and processing accuracy, a new control method and control device of active maglev was put forward based on H∞ mixed sensitivity. Firstly, a mathematical model was established among the electromagnetic force ...

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 recent years, increasing concerns over climate change and transportation energy consumption have sparked research into the influences of urban form and land use patterns on motorized travel, notably vehicle miles traveled (VMT). However, empirical studies provide mixed evidence of the influence of the built environment on travel. In particular, the role of density after controlling for the c...