Hardened nickel coating is widely used in many industrial applications and manufacturing processes because of its benefits in improving the corrosion fatigue life. It is clear that increasing the coating thickness provides good protection against corrosion. However, it reduces the fatigue life. Thus, applying a thin layer of coated nickel might give an acceptable corrosion protection with minim...

xvi Chapter 1: Introduction, Background and Prior Work 1 1.1 Motor Redundancy . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 Muscle Fatigue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.3 Experimental Evidence: Leveraging Muscle Redundancy for Fatigue Mitigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 1.4 Modeling and Simulation: Musc...

The performance of human resources is affected by various factors such as mental and physical fatigue, skill, and available time in the production systems. Generally, these mentioned factors have effects on human reliability and consequently change the reliability of production systems. Fatigue is a stochastic factor that changes according to other factors such as environmental conditions, work...

OBJECTIVES This study of Japanese dual-earner couples examined the impact of family and job demands on one's own and one's partner's fatigue as well as gender differences in these effects. METHODS A total of 2,502 parents (1,251 couples) were surveyed using a self-administered questionnaire. A crossover model was tested using structural equation modeling. RESULTS The results of structural e...

The simplification of 3D modeling in today’s computer world remains challenging, and systems to support such modeling also need to be developed. It is further necessary in 3D modeling to incorporate subjective evaluation by users into optimization techniques. In this study, support for 3D modeling was investigated, and user fatigue (a disadvantage of interactive genetic algorithm usage) was red...

Prolonged fatigue equal to or greater than 1 month duration and chronic fatigue equal to or greater than 6 months duration are both commonly seen in clinical practice, yet little is known about the etiology or epidemiology of either symptom. Chronic fatigue syndrome (CFS), while rarer, presents similar challenges in determining cause and epidemiology. Twin studies can be useful in elucidating g...

Fatigue in resident physicians has been identified as a factor that contributes to burnout and decline overall wellbeing. risk exists because of poor sleep habits demanding work schedules have only increased due the COVID-19 pandemic. At this time, it is important not lose sight how fatigue can impact residents be mitigated. While mitigation currently addressed by duty hour restrictions educati...