This part of the paper examines numerically the possibility of modeling “robot fatigue” being representative of a human psychophysical state that can be applied to robots. Temperatures of driving motors are suggested as analogs to fatigue in muscles. Simulation of robot behavior is performed on a typical human task, namely handwriting. Three phases of task execution, characteristic for humans, ...

In this paper we focus on the modeling and evaluation of performance factors as human fatigue at joint level. We introduce the concept of half-joint pair to calculate fatigue at joint level, that is, at muscle groups level. The fatigue model is designed to enable to a posture optimization algorithm to adapt the human posture so that when fatigue appears it can be reduced. An Inverse Kinematics ...

There is no doubt that fatigue plays an important role in driver performance and potential crashes. One way to understand the effects of fatigue on driving performance that has not been rigorously explored is to use cognitive modeling as a performance predictor. In this paper, we integrate existing models of driving and fatigue to make a general model of driving under the influence of moderate ...

Purpose: Considering the importance of human resources and increase leaving job positions, the aim of this study was structural equations modeling of effective dimensions of job alienation. Methodology: The present study was a cross-sectional from type of correlation. The research population was the employees of the government organizations of Isfahan city in 2021 year, which number of 400 peo...

This paper presents the new developments of the next generation of the digital human Santos. The new features include (1) a 211-degree-of-freedom realistic skeletal model with deformable skin; (2) advances in a new method for dynamic motion prediction, called predictive dynamics; (3) advances in strength and fatigue modeling; and (4) advances in virtual human clothing interaction simulation. Wi...

Fatigue is the most prevalent symptom in breast cancer. It might be perceived differently among patients over time as a consequence of the differing patients' adaptation and psychological adjustment to their cancer experience which can be related to response shift (RS). RS analyses can provide important insights on patients' adaptation to cancer but it is usually assumed that RS occurs in the s...

This paper is motivated from the analysis of neuroscience data in a study of neural and muscular mechanisms of muscle fatigue. Multidimensional outcomes of different natures were obtained simultaneously from multiple modalities, including handgrip force, electromyography (EMG), and functional magnetic resonance imaging (fMRI). We first study individual modeling of the univariate response depend...

The microstructure and mechanical properties of Fe-0.85Mo-Ni powder metallurgy (P/M) steels were investigated as a function of sintered density. A quantitative analysis of microstructure was correlated with tensile and fatigue behavior to understand the influence of pore size, shape, and distribution on mechanical behavior. Tensile strength, Young’s modulus, strain-to-failure, and fatigue stren...