In this study, a double-sided linear switched reluctance motor (LSRM) drive was investigated as an alternative actuator for vertical linear transportation applications such as a linear elevator door, hospital and subway doors which move linearly and where accurate position control and rapid response is requested. A prototype sliding elevator door that is focused on a home elevator with LSRMs is...

The Ant Colony Optimization (ACO) metaheuristic is a bio-inspired approach for hard combinatorial optimization problems for stationary and non-stationary environments. In the ACO metaheuristic, a colony of artificial ants cooperate for finding high quality solutions in a reasonable time. An interesting example of a non-stationary combinatorial optimization problem is the Multiple Elevators Prob...

The Automated Product Delivery System (APDS) was developed to address a need in industrial manufacturing for a simple way to transfer materials between areas of a manufacturing environment. At the moment, most equipment used for such a task consist of some type of fixed system, such as conveyor belts, elevators, etc. While adequate, they are not easily adaptable to any changes in their environm...

OBJECTIVES The aim of the present historical cohort study was to enhance the understanding of the unusual mortality pattern seen among seafarers. The main object was to describe the mortality pattern of Danish seafarers in recent years with special reference to the influence of accidents in the maritime workplace and ashore and the influence of diseases related to lifestyle. SUBJECTS A cohort...

BACKGROUND Current professional guidelines recommend a maximum hang time for reprocessed duodenoscopes of 5-14 days. We sought to study the association between hang time and risk of duodenoscope contamination. METHODS We analyzed cultures of the elevator mechanism and working channel collected in a highly standardized fashion just before duodenoscope use. Hang time was calculated as the time ...

INTRODUCTION Subperiosteal preparation using a periosteal elevator leads to disturbances of local immunohistochemistry and periosteal histology due to a microtrauma. Usually soft-tissue damage can be considerably reduced by using piezoelectric technology. For this reason, the effects of a novel piezoelectric device on immunohistochemistry and periosteal histology were examined and compared to c...

The design procedure of a second-generation wavelet packet decomposition, based on an evolutionary approach, is introduced for industrial fault detection. The procedure has been validated by means of an experimental case study for an induction motor used as traction machine in an elevator system. Preliminary results on three mechanical faults related to ball-bearing show encouraging performance.

Related Articles Using the Wii Balance Board in Elevator Physics Phys. Teach. 51, 210 (2013) Reproducing Eratosthenes' Determination of Earth's Circumference on a Smaller Scale Phys. Teach. 51, 222 (2013) Removing Coins from a Dice Tower: No Magic — Just Physics Phys. Teach. 51, 212 (2013) Mechanical Parametric Oscillations and Waves Phys. Teach. 51, 163 (2013) An Arduino-Controlled Photogate P...