the safety of hydrogen generation facilities is the main concern in their process operation. this study was conducted to identify the hazards and evaluate the risks of a hydrogen generation plant. for this purpose, prha (process hazard analysis) was applied for hazard identification while lopa (layer of protection analysis) was used for risk assessment. the study was conducted in the hydrogen p...

In real-life applications, neither all the inputs of an algorithm are available at outset, as in offline framework, nor do they occur one by order, online setup. Semi-online is intermediate theoretically and practically significant framework with additional information on successive to address limitations frameworks. One key motivation for studying semi-online algorithms investigate how can imp...

in this paper, a multi-period and multi-resource operating room (or) scheduling and rescheduling problem with elective and semi-elective (semi-urgent) patients is addressed. a scheduling-rescheduling framework based on the so-called rolling horizon approach is proposed to solve the problem. the core of the proposed framework is a novel proposed mixed-integer linear programming (milp) model with...

We prove in this note the convexity of the functions u ◦ λ and more generally u ◦ λB on the space of Hermitian matrices, for B a fixed positive definite hermitian matrix, when u : R → R ∪ {+∞} is a symmetric convex function which is lower semi-continuous on R, and finite in at least one point of R. This is performed by using some optimisation techniques and a generalized Ky Fan inequality. To c...