this study involved the development and evaluation of a new filtering technique, as based on adaptive free mass load cell. the technique's application in reduction of vibration and impulse noise (commonly added to the sugar cane harvester yield monitoring signals) was tested. this technique is based upon assimilate spring- mass vibration system of weighing scale with a free mass load cell ...

Contaminant transport and flow distribution are very important during an elevator ride, as the reduced social distancing may increase infection rate of airborne diseases such COVID-19. This investigation used a computational fluid dynamics (CFD) model based on RNG k–ϵ turbulence to predict airflow particle in elevator-lobby area with moving passengers. The CFD results showed complex pattern due...

PURPOSE The purpose of this study is to systematically review and analyze disasters involving South Korean hospitals from 1990 and to introduce a newly developed implement to manage patients' evacuation. MATERIALS AND METHODS We searched for studies reporting disaster preparedness and hospital injuries in South Korean hospitals from 1990 to 2008, by using the Korean Studies Information Servic...

The word “serendipity” is considered very difficult to define; it may be considered “A talent for making fortunate discoveries while searching for other things”. The history of sexual medicine teaches us the importance of serendipity along with research. Serendipity in the year 1988 was initiated by a slow elevator. Dr. Jacob Rajfer, Professor of Urology, had attended a meeting on the 2 floor o...

Multi-car elevator (MCE for short) systems have been receiving increasing attention these days. An MCE has two or more cars in one shaft. It is difficult to control MCEs by using algorithms developed for single-car elevator systems, because MCEs need to avoid collision of the cars of the same shaft. In this paper, we propose an algorithm to control MCE systems, and show the effectiveness of our...

In this work we study the problem of rope sway dynamics control for elevator systems. We choose to actuate the system with a semi-active damper mounted on the top of the elevator car. We propose nonlinear controllers based on Lyapunov theory, to actuate the semi-active damper and stabilize the rope sway dynamics. We study the stability of the proposed controllers, and test their performances on...

PURPOSE To report a unique surgical approach for congenital double elevator palsy with sensory exotropia. CASE REPORT A 7-year-old boy with congenital double elevator palsy and sensory exotropia was managed surgically by Callahan's procedure with recession and resection of the horizontal recti for exotropia without inferior rectus recession, followed by frontalis sling surgery for congenital ...

This paper presents an optimal control strategy for elevator group in large buildings. An elevator group controller allocates different elevators to up and down hall calls that coming from different floors. The control strategy is a precondition to minimize mainly the average waiting time of hall calls. In this paper, two genetic algorithms are developed to treat efficiently the elevator group ...

control has become a major field of application for AI technologies. Techniques such as neural networks, genetic algorithms, fuzzy rules and, recently, multiagent systems and AI planning have been adopted by leading elevator companies not only to improve the transportation capacity of conventional elevator systems but also to revolutionize the way in which elevators interact with and serve pass...

The objective of the work presented in this paper is develop a method to interpret interior elevator panels for robot navigation. We outline a three-level hierarchical approach applies principles from both supervised and unsupervised machine learning techniques. In particular, we will show the development of an algorithm that accepts an elevator panel image paired with a desired floor location ...