Results 51 to 60 of about 8,174 (251)

Individual-oriented Model Crowd Evacuations Distributed Simulation

Procedia Computer Science, 2014
Emergency plan preparation is an important problem in building design to evacuate people as fast as possible. Simulation exercises as fire drills are not a realistic situation to understand people behaviour. In the case of crowd evacuations the complexity and uncertainty of the systems increases.
Albert Gutierrez-Milla, Francisco Borges, Remo Suppi, Emilio Luque   +3 more
openaire   +2 more sources

n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz

Advanced Materials, EarlyView.
Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis, Filip Aniés, Yiyang Yu, Mohammed Ghadiyali, Hendrik Faber, Zhanibek Bizak, Youssef Kabri, Pavlos Tzourmpakis, Suman Mandal, Linqu Luo, Temur Maksudov, Mohamad Insan Nugraha, Harold F. Mazo‐Mantilla, Patrice Vanelle, Julie Broggi, Khaled N. Salama, Udo Schwingenschlögl, Martin Heeney, Atif Shamim, Thomas D. Anthopoulos   +19 more
wiley   +1 more source

Improved Multi-Agent Deep Deterministic Policy Gradient for Path Planning-Based Crowd Simulation

IEEE Access, 2019
Deep reinforcement learning (DRL) has been proved to be more suitable than reinforcement learning for path planning in large-scale scenarios. In order to more effectively complete the DRL-based collaborative path planning in crowd evacuation, it is ...
Shangfei Zheng, Hong Liu
doaj   +1 more source

Pedestrian, Crowd, and Evacuation Dynamics

, 2013
This contribution describes efforts to model the behavior of individual pedestrians and their interactions in crowds, which generate certain kinds of self-organized patterns of motion. Moreover, this article focusses on the dynamics of crowds in panic or
A Borgers, A Johansson, A Johansson, A Mintz, A Seyfried, BD Hankin, BD Jacobs, C Burstedde, CW Reynolds, D Elliott, D Garbrecht, D Helbing, D Helbing, D Helbing, D Helbing, D Helbing, D Helbing, D Helbing, D Helbing, D Helbing, D Helbing, D Helbing, D Helbing, D Helbing, D Helbing, D Helbing, D Helbing, D Helbing, D Helbing, E Quarantelli, F Radjai, G LeBon, G Peng, GG Løvås, GH Ristow, GK Still, H Klüpfel, H-H Stølum, HH Kelley, HW Hamacher, I Rodríguez-Iturbe, J Kerridge, J Klockgether, J Pauls, J Surowiecki, J Tubbs, JJ Fruin, JL Bryan, JP Keating, K Ando, K Lewin, KR Sreenivasan, LF Henderson, LP Kadanoff, M Ebihara, M Fukui, M Isobe, M Muramatsu, ME Cates, N Ashford, N Ketchell, NE Miller, NE Miller, NJ Smelser, NR Johnson, NS Glance, P Bak, PA Johnson, PA Thompson, PG Gipps, R Axelrod, R Axelrod, R Brown, RH Turner, RL Hughes, S Ghashghaie, S Hoogendoorn, S Okazaki, SJ Older, SJ Yuhaski Jr, SP Hoogendoorn, T Baeck, T Kretz, T Schelling, Transportation Research Board, VJ Blue, VM Predtechenskii, WH Whyte   +87 more
core   +1 more source

Applying the lessons of the attack on the World Trade Center, 11th September 2001, to the design and use of interactive evacuation simulations [PDF]

, 2005
The collapse of buildings, such as terminal 2E at Paris' Charles de Gaule Airport, and of fires, such as the Rhode Island, Station Night Club tragedy, has focused public attention on the safety of large public buildings.
Johnson, C.W.
core   +1 more source

Nanomaterial Integration at Liquid–Liquid Interfaces for Green Catalysis

Advanced Materials, EarlyView.
Functional nanomaterials assembled at liquid–liquid interfaces create dual‐role platforms serving as emulsion stabilizers and catalytic sites, offering enhanced reaction kinetics with improved catalyst recovery and recyclability. This review examines design strategies, structure‐performance relationships, and industrial implementation prospects of ...
Bokgi Seo, Jaewon Shin, Minkyoung Jang, Kyoungho Choi, Tengfei Pang, Fangrui Zhong, Jin Woong Kim   +6 more
wiley   +1 more source

Guidelines for assessing pedestrian evacuation software applications [PDF]

, 2007
This paper serves to clearly identify and explain criteria to consider when evaluating the suitability of a pedestrian evacuation software application to assess the evacuation process of a building.
Castle, C.J.E.
core  

Sequential evacuation strategy for multiple rooms toward the same means of egress [PDF]

, 2014
This paper examines different evacuation strategies for systems where several rooms evacuate trough the same means of egress, using microscopic pedestrian simulation.As a case study, a medium-rise office building is considered.
Negri, Pablo A., Parisi, Daniel R.
core   +3 more sources

Physical Origin of Temperature Induced Activation Energy Switching in Electrically Conductive Cement

Advanced Science, EarlyView.
The temperature‐induced Arrhenius activation energy switching phenomenon of electrical conduction in electrically conductive cement originates from structural degradation within the biphasic ionic‐electronic conduction architecture and shows percolation‐governed characteristics: pore network opening dominates the low‐percolation regime with downward ...
Jiacheng Zhang, Xinyuan Ke, Andrew Heath, Richard J. Ball, Jiawei Xie, Jinchen Fan, Guisheng Li, Kevin Paine   +7 more
wiley   +1 more source

A crowd team evacuation model considering spring effect

Developments in the Built Environment
In order to effectively describe the interaction between individuals in the team during the evacuation process, this paper introduces a spring force into the social force model to characterize the elastic and attractive force effects generated by team ...
Hu Jun, Huang Long, Yang Longcheng, Tang Zhihai, You Lei, Wei Juan, Liu Renxuan   +6 more
doaj   +1 more source