The necessity for undertaking this research is driven by the prevailing challenges encountered in logistic centers. This study addresses a order-picking issue involving unidirectional conveyors and buffers, which are assigned to racks pickers with objective of minimizing makespan. Subsequently, two variations two-step matheuristic approach proposed as solution methodologies. These matheuristics...

Scheduling the availability of order pickers is crucial for effective operations in a distribution facility with manual pickers. When order-picking activities can only be performed specific time windows, it essential to jointly solve picker shift scheduling problem and planning assigning sequencing individual orders This requires decisions regarding number schedule, start end times, break as we...

If the absolute number of poor people goes up, but the fraction of people in poverty comes down, has poverty gone up or gone down? The economist’s instinct, framed by population replication axioms that undergird standard measures of poverty, is to say that in this case poverty has gone down. But this goes against the instinct of those who work directly with the poor, for whom the absolute numbe...

PURPOSE To retrospectively assess the clinical utility in ureteroscopy (URS) planning of cumulative stone diameter (CSD), which does not account for stone width or depth, as a predictor of URS outcome and compare it with stone volume. MATERIALS AND METHODS Patients with renal stones treated at a single institute by flexible URS were retrospectively evaluated. To assess the clinical utility of...

Previous research has shown that musculoskeletal disorders (MSDs) are one of the barriers for women to adopting tea-picking mechanization technology. Musculoskeletal defined as a group injuries affect system including nerves, tendons, muscles, and supporting structures. MSDs also referred due overactivity or from using device excessively. Some results significantly show gender greatly affects l...