Abstract Astronaut's performance is critical to assure success and safety of an outer space mission. For the given mental workload (MWL), astronaut's long-term performance is affected by his/hers human capacity factor (HCF), while the astronaut's short-term performance depends also on his/hers current state of health (SoH). It is suggested that the roles of these human factors (HFs) are quantified by using the double-exponential-probability-distribution function (DEPDF). The underlying physics and attributes of this function in the problem in question are addressed and explained. The general concepts are illustrated by a numerical example.

中文翻译：

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宇航员的表现与他/她的人类能力因素和健康状况：双指数概率分布函数的应用

摘要 宇航员的表现对于确保外层空间任务的成功和安全至关重要。对于给定的脑力负荷（MWL），宇航员的长期表现受其人体能力因子（HCF）的影响，而宇航员的短期表现还取决于其当前的健康状况（SoH）。建议使用双指数概率分布函数 (DEPDF) 量化这些人为因素 (HF) 的作用。解决并解释了所讨论问题中该函数的基本物理原理和属性。一般概念通过一个数值例子来说明。