Results 161 to 170 of about 26,569 (314)

Design of a medium access control protocol that exploits the structures of vehicular networks

, 2011
Vehicular networks (VANETs) have distinctive structures that distinguish them in comparison to general mobile ad hoc networks. In this thesis we identify the relevant special structures that do exist, and show how they can be exploited to design a MAC ...
Lam, Kong
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On the Friction and Wear Mechanisms of Electrified Steel Contacts in CO2: Unveiling the Role of Carbon‐Rich Tribofilms Under Dry Sliding Conditions

Advanced Materials Interfaces, EarlyView.
This study investigates friction and wear of AISI 52100 steel under dry sliding in CO2, air, and N2 atmospheres, with and without contact electrification. CO2 forms a stable carbon‐rich tribofilm that reduces friction by ∼30% and wear by ∼85%. High‐resolution TEM, EELS, and molecular dynamics reveal pressure‐dependent lubrication mechanisms, showing ...
Julio A. Cao‐Romero‐Gallegos, Seungjoo Lee, Cagatay Yelkarasi, Leonardo I. Farfan‐Cabrera, Ryuichi Okamoto, Hitoshi Washizu, Ali Erdemir   +6 more
wiley   +1 more source

Capture-Aware Dense Tag Identification Using RFID Systems in Vehicular Networks. [PDF]

Sensors (Basel), 2023
Xu W, Song Z, Sun Y, Wang Y, Lai L.
europepmc   +1 more source

MAC Protocols in Vehicular Ad Hoc Networks

, 2010
With the rapid development of wireless technologies, the Vehicular Ad Hoc Networks (VANETs) have recently received much attention. VANETs technologies aim to ensure traffic safety for drivers, provide comfort for passengers and reduce transportation time
張志勇; Chang, Chih-yung
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From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +1 more source

A Novel Joint Channel Estimation and Symbol Detection Receiver for Orthogonal Time Frequency Space in Vehicular Networks. [PDF]

Entropy (Basel), 2023
Zhang X, Wen H, Yan Z, Yuan W, Wu J, Li Z.   +5 more
europepmc   +1 more source

Co-projecto em FPGA da MAC IEEE 802.11p para comunicações veiculares

, 2011
Mestrado em Engenharia Electrónica e TelecomunicaçõesThe advancements and dissemination of telecommunication technologies has caused them to be employed more and more in our day-to-day life.
Silva, Manuel José Alves Ventura da
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The Influence of Mesoscale Particle Structure on the Electrode Degradation and Resultant Electrochemistry of Lithium Ion Cells With Nickel Rich Lithium Nickel Manganese Cobalt Oxide Positive Electrodes

Advanced Materials Technologies, EarlyView.
Milled polycrystalline NMC811 cathode (MPC NMC) with smaller secondary particle and higher surface area had 1) greater cathode tortuosity, 2) reduced surface Ni on the cycled MPC cathodes consistent with surface reconstruction, and 3) increased Ni deposition from cathode‐anode crosstalk, manifesting in lower functional capacity and higher impedance ...
Edelmy J. Marin Bernardez, Andrew Nicoll, David J. Arnot, Armando Rodriguez Campos, Patrick J. Barry, Marie F. Millares, Cynthia Huang, Melissa A. Guercio, Grace K. Dono, Alexis Pace, Xianghui Xiao, Cherno Jaye, Conan Weiland, Jianming Bai, Hui Zhong, Michael Drakopoulos, Zhong Zhong, Nghia T. Vo, Xiao Tong, Esther S. Takeuchi, Amy C. Marschilok, Shan Yan, Kenneth J. Takeuchi   +22 more
wiley   +1 more source

Efficient Authentication Scheme for 5G-Enabled Vehicular Networks Using Fog Computing. [PDF]

Sensors (Basel), 2023
Al-Mekhlafi ZG, Al-Shareeda MA, Manickam S, Mohammed BA, Alreshidi A, Alazmi M, Alshudukhi JS, Alsaffar M, Rassem TH.   +8 more
europepmc   +1 more source

SPAWN: A Swarming Protocol for Vehicular Ad-Hoc Wireless Networks

, 2004
Future vehicular networks are expected to deploy shortrange communication technology for inter-vehicle communication. In addition to vehicle-to-vehicle communication, users will be interested in accessing the multimedia-rich Internet from within the ...
Sanadidi, M. Y., Shirshanka Das, Mario Gerla, Giovanni Pau, M.Y. Sanadidi, Pau, Giovanni, Nandan, Alok, Gerla, Mario, Alok Nandan, Das, Shirshanka   +9 more
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