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Virtual reality technology in evacuation simulation of sport stadiums
Xiao Yi | Shanghai University of Sport
Abstract. With the activities of major sports events have become increasingly active and the social influence of sports events is gradually increasing, people have more and more opportunities to watch matches in sports stadiums. Sports stadium, as a place of relatively large occupant density, has high demands for its safe operation except that it is necessary to meet the needs of competitions. Under the unexpected situations, how to ensure the public safety has become the focus of social concern. This paper takes the emergent evacuation simulation of sports stadium as a main research object. It concerns the main problems that how to use virtual reality technology to build a three-dimensional simulated scene of sports stadium; how to truly simulated the whole evacuation process of many people under unexpected situations. The scene modeling of sports stadium, The construction of evacuation model, The visualization of evacuation process, Dynamic Roaming and Interaction design, Evaluation system and other issues are discussed in this article.
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Ming Emperor Xianzong Enjoying the Lantern Festival (CLICK IMAGE to launch Zoom interactive viewer)
CLICK HERE to order complete paper
Related IEEE Research:
Design of an Intelligent Management System for Sports Activities Based on New Information Technology
Research on the Application of Flipped Classroom Model in College Sports Dance Teaching
Federal Agency Conformity Assessment
NIST Headquarters / Gaithersburg, Maryland
The National Institute of Standards and Technology requests comments on proposed revisions to regulations updating policy guidance on Federal agency use of conformity assessment that reflects advancement in conformity assessment concepts, and the evolution in Federal agency strategies and coordination in using and relying on conformity assessment.
The provisions are solely intended to be used as guidance for agencies in their use and reliance on conformity assessment to meet agency requirements and do not preempt the agency authority and responsibility to make decisions authorized by statute or required in establishing regulatory, procurement, or programmatic activities.
Federal Register: Guidance on Federal Conformity Assessment Activities
LEARN MORE:
ANSI Blog: NIST Guidance on Federal Agency Conformity Assessment Activities
Class: A Guide Through the American Status System
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Landscape Lighting
Luminaires receive operating energy at voltage ranges from 120V to 600V AC. For safety and aesthetic reasons — in gardens or inside stairway balustrades or bollards, for example — low voltage lighting is preferred. The illumination of the pathway, for example, reduces risk to the community far more than the risk voltage presents. These installations typically operate at 12 to 50 volts direct current. Manufacturers bear much of the electrical safety burden; assuming the Owner installs and maintains the system correctly.
Faster than anyone will expect, interior building lighting will morph into low voltage systems because 1) the lower energy supply required by LED luminaires will make it possible to pipe that energy through low voltage cabling systems, 2) the pace of innovation we see in information and communication technologies will use those cabling systems for greater control of illumination systems.
We see these trends tracking in two sections of the 2020 National Electrical Code:
Article 300 Wiring Methods (Table 300.5)
Article 411 Low-Voltage Lighting
CLICK HERE for Free Access to the current 2023 Edition.
Comments on Public Input for the 2026 Revision will be received until 28 August 2024. Use workspace linked below:
CMP-9 Public Input with Committee Response
CMP-18 Public Input with Committee Response
Apart from integrating a new definition of “extra low voltage” into the NEC, Article 411 is a relatively quiet part of the NEC. Not so with Article 300 which is of great consequence to wiring manufacturers, among others.
Transylvania University Kentucky
We coordinate our advocacy in all education community electrotechnologies with the IEEE Education & Healthcare Facilities Committee which meets online 4 times monthly in both European and American time zones. We maintain low voltage lighting on the standing agenda of our Power and Bucolia colloquia. See our CALENDAR for the next online meeting; open to everyone.
Issue: [NFPA Workspace]
Category: Power, Illumination, Bucolia
Colleages: Mike Anthony, Jim Harvey (University of Michigan), Kane Howard, Glenn Keates (Michigan State University), George Zsissis (University of Toulouse)
New update alert! The 2022 update to the Trademark Assignment Dataset is now available online. Find 1.29 million trademark assignments, involving 2.28 million unique trademark properties issued by the USPTO between March 1952 and January 2023: https://t.co/njrDAbSpwB pic.twitter.com/GkAXrHoQ9T
— USPTO (@uspto) July 13, 2023
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