Results 101 to 110 of about 22,245,183 (290)

A Statistical Approach in Designing an RF-Based Human Crowd Density Estimation System

International Journal of Distributed Sensor Networks, 2016
The study of human crowd density estimation (H-CDE) using radio frequency is limited due to the nature of wireless medium and the advancement of visual-based systems.
S. Y. Fadhlullah, Widad Ismail
doaj   +1 more source

Diversity and Crowd-out: A Theory of Cold-Glow Giving [PDF]

Research has repeatedly shown that altruism is lower in diverse communities. Can this phenomenon be counteracted by government intervention? To answer this question, this paper introduces diversity to the canonical model of "warm glow" giving.
Daniel M. Hungerman
core  

Defect‐Engineered ZnO Nanowire Arrays for Flexible Room‐Temperature Hydrogen Sensors

Advanced Materials Technologies, EarlyView.
Fabrication process of patterned ZnO nucleation sites on a flexible polyimide (PI) substrate. Top/tilted‐view SEM images of ordered ZnO nanoflower arrays confined within patterned circular regions. AFM topography map with height data revealing a disk‐array structure, where the patterned regions (marked by a red dot circle) are elevated by ∼2 µm ...
Jun‐Ting Wang, Imran Khan, Jhen‐De You, Fan‐Hua Kong, Chang‐Mou Wu, Po‐Kai Chiu, Ray‐Hua Horng, Jinn P. Chu   +7 more
wiley   +1 more source

Bridging Crowd Analysis and Natural Language: A New Vision Language Approach for Behavioral Video Captioning

IEEE Access
Crowd analysis is a critical application area for addressing challenges in domains such as transportation and public safety within smart cities.
Selen Gurbuz, Turan Goktug Altundogan, Mehmet Karakose   +2 more
doaj   +1 more source

Copper Electroplated TPMS Polymer Lattices for Lightweight Absorption Dominant Electromagnetic Interference Shielding

Advanced Materials Technologies, EarlyView.
Copper electroplating transforms lightweight 3D‐printed TPMS polymer lattices into effective electromagnetic shields. Topology, relative density, and conductive seed layer continuity govern copper penetration, electrical resistance, and attenuation. SEA consistently exceeds SER, while 35% RD Diamond lattice gives the best performance, reaching 48.72 dB
Aman Al Khatib, Fares AlAwwa, Naod Mogos, Abdallah Kamal, Kin Liao, Marwan El Rich, Wael Zaki   +6 more
wiley   +1 more source

Is Crowd Out A Problem In Recessions? [PDF]

The crowd out effects of the government deficit is tested by adding it to consumption and investment models which control extensively for other factors.
John J. Heim
core  

Linking Polyelectrolyte Modification and Enzyme‐Catalyzed Phenolic Acid Functionalization of Cellulose Fiber for Functional Foams

Advanced Materials Technologies, EarlyView.
Cellulose fibers functionalized using cationic poly(Dimethyldiallylammonium chloride) (polyDADMAC) and laccase‐mediated ferulic acid system are processed into foams using different surfactants (Anionic, cationic, and non‐ionic). Fiber–surfactant interactions influence foam stabilization and porous structure formation during convective drying, producing
Abirami Senthil, Sara Wallstén, Paul Christakopoulos, Ulrika Rova, Io Antonopoulou   +4 more
wiley   +1 more source

A Synergy Between Machine Learning and Formal Concept Analysis for Crowd Detection

IEEE Access
To enhance public safety, crowd detection and prevention systems have essentially become a natural means to manage diverse crowded areas, such as urban settings, transportation hubs, and event venues.
Anas M. Al-Oraiqat, Oleksandr Drieiev, Sattam Almatarneh, Mohammadnoor Injadat, Karim A. Al-Oraiqat, Hanna Drieieva, Yassin M. Y. Hasan   +6 more
doaj   +1 more source

Information Transmission Strategies for Self‐Organized Robotic Aggregation

Advanced Robotics Research, EarlyView.
In this review, we discuss how information transmission influences the neighbor‐based self‐organized aggregation of swarm robots. We focus specifically on local interactions regarding information transfer and categorize previous studies based on the functions of the information exchanged.
Shu Leng, Zihan Li, Yifeng Shao, Jinhao Liu, Li Yu, Shuguang Li   +5 more
wiley   +1 more source

Large-Scale Crowd Analysis through the Use of Passive Radio Sensing Networks. [PDF]

Sensors (Basel), 2020
Denis S, Bellekens B, Kaya A, Berkvens R, Weyn M.   +4 more
europepmc   +1 more source