نتایج جستجو برای: elevator related accidents
تعداد نتایج: 1190396 فیلتر نتایج به سال:
Aalto University, P.O. Box 11000, FI-00076 Aalto www.aalto.fi Author Juha-Matti Kuusinen Name of the doctoral dissertation People Flow in Buildings – Evacuation Experiments and Modelling of Elevator Passenger Traffic Publisher School of Science Unit Department of Mathematics and Systems Analysis Series Aalto University publication series DOCTORAL DISSERTATIONS 47/2015 Field of research Systems ...
This paper presents a new modeling of elevator group intelligent scheduling system with destination floor guidance. The traditional input mode of separate hall call registration and the destination selection is improved to a single-input mode. On this basis, dynamic partition method in up-peak traffic is studied. This method means dynamically adjust division of floor region based on flow rate a...
BACKGROUND Elevators are ubiquitous and active inside hospitals, potentially facilitating bacterial transmission. The objective of this study was to estimate the prevalence of bacterial colonization on elevator buttons in large urban teaching hospitals. METHODS A total of 120 elevator buttons and 96 toilet surfaces were swabbed over separate intervals at 3 tertiary care hospitals on weekdays ...
Current elevator landing door safety retainers are able to prevent fall accidents from an inadvertent bump against the door, as they designed endure a kinetic energy of 450 J. However, recent increase in among people electric wheelchairs indicates that required sustain stronger external shocks doors. The purpose this study is develop capable enduring 1,000 J at doors elevators. In study, crash ...
We propose a novel approach for group elevator scheduling by formulating it as the maximization of submodular function under a matroid constraint. In particular, we propose to model the total waiting time of passengers using a quadratic Boolean function. The unary and pairwise terms in the function denote the waiting time for single and pairwise allocation of passengers to elevators, respective...
In dentistry, elevator instruments are used to luxate teeth, and this technique imparts forces to tooth particles that sever the periodontal ligament around tooth roots inside the socket and expand alveolar bone around tooth particles. These effects can result in extraction of the tooth particles or facilitate systematic forceps extraction of the tooth particles. This article presents basic ora...
introduction: traffic accidents are the 8 th cause of mortality in different countries and are expected to rise to the 3 rd rank by 2020. based on the haddon matrix numerous factors such as environment, host, and agent can affect the severity of traffic-related traumas. therefore, the present study aimed to evaluate the effective factors in severity of these traumas based on haddon matrix. meth...
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