Results 81 to 90 of about 258,047 (289)

MAC Protocols: A Review

IOSR Journal of Computer Engineering, 2013
Mobile adhoc networks (MANETS) are infrastructureless networks which uses radio signals, to establish communication among mobile nodes. MANET media is open shared media, multiple mobile nodes may access the medium at the same time, which causes various MAC problems.
openaire   +1 more source

Atomic Layer Deposition in Transistors and Monolithic 3D Integration

Advanced Functional Materials, EarlyView.
Transistors are fundamental building blocks of modern electronics. This review summarizes recent progress in atomic layer deposition (ALD) for the synthesis of two‐dimensional (2D) metal oxides and transition‐metal dichalcogenides (TMDCs), with particular emphasis on their enabling role in monolithic three‐dimensional (M3D) integration for next ...
Yue Liu, Taoyu Zou, Cheng‐Yan Xu, Liang Zhen, Yang Li, Yong‐Young Noh   +5 more
wiley   +1 more source

Energy Efficient MAC Protocol for Low-Energy Critical Infrastructure Monitoring Networks Using Wakeup Radio

International Journal of Distributed Sensor Networks, 2012
Critical infrastructure monitoring applications are rapidly increasing. Application requirements include reliable data transfer, energy efficiency, and long deployment lifetime.
Niamat Ullah, M. Sanaullah Chowdhury, Mosaddique Al Ameen, Kyung Sup Kwak   +3 more
doaj   +1 more source

Linear Precoders for Non-Regenerative Asymmetric Two-way Relaying in Cellular Systems [PDF]

, 2013
Two-way relaying (TWR) reduces the spectral-efficiency loss caused in conventional half-duplex relaying. TWR is possible when two nodes exchange data simultaneously through a relay.
Budhiraja, Rohit, KS, Karthik, Ramamurthi, Bhaskar   +2 more
core   +1 more source

ETV2 Mediated Differentiation of Human Pluripotent Stem Cells Results in Functional Endothelial Cells for Engineering Advanced Vascularized Microphysiological Models

Advanced Healthcare Materials, EarlyView.
A robust method to generate functional human iPSC‐derived endothelial cells using inducible ETV2 expression. These cells self‐organize into stable, lumenized microvascular networks within microfluidic chips, surpassing conventional differentiation methods.
Shun Zhang, Zhengpeng Wan, Lei Wang, Caihong Wu, Junkai Zhang, Sarah Spitz, Xun Wang, Marie A. Floryan, Mark F. Coughlin, Francesca M. Pramotton, Liling Xu, Ron Weiss, Roger D. Kamm   +12 more
wiley   +1 more source

Ada-MAC: An Adaptive MAC Protocol for Real-time and Reliable Health Monitoring,

, 2012
IEEE 802.15.4 is regarded as one of the most suitable communication protocols for cyber-physical applications of wireless sensor and actuator networks.
Gao, Ruixia, Wang, Linqiang, Xia, Feng, Zhang, Daqiang, Zhang, Xue   +4 more
core   +1 more source

Development of a Synthetic Hydrogel to Foster Microvascularization of an Endometriosis Microphysiological System

Advanced Healthcare Materials, EarlyView.
ABSTRACT The ascent of novel alternative methods in drug development spotlights the dual needs for improved biological fidelity to in vivo, along with reproducibility, especially in regulatory applications. The need for pre‐clinical models of patient‐derived endometriosis lesions motivates the development of a vascularizable, completely synthetic ...
Lauren Pruett, Laura Bahlmann, Ryan Ogi, Angela Jiao, Priyatanu Roy, Matthew Johnson, David Trumper, Linda Griffith   +7 more
wiley   +1 more source

CAC-MAC: A Cross-Layer Adaptive Cooperative MAC for Wireless Ad Hoc Networks

International Journal of Distributed Sensor Networks, 2012
Cooperative communication has been recently proposed as a way to mitigate fading in wireless networks. A cross-layer adaptive cooperative MAC (CAC-MAC) protocol for IEEE 802.11 DCF-based wireless ad hoc networks is proposed.
Chunguang Shi, Haitao Zhao, Shan Wang, Jibo Wei, Linhua Zheng   +4 more
doaj   +1 more source

Controllable Dynamic Mechanical Cell Stimulation using Magnetically Actuated Artificial Cilia

Advanced Healthcare Materials, EarlyView.
This paper introduces a platform based on magnetic artificial cilia for providing controllable dynamic mechanical stimulation to single cells, suitable for investigating large cell populations and enabling live cell imaging. Proof‐of‐principle experiments show that cell morphology is strongly influenced by the artificial cilia, that cellular forces can
Roel Kooi, Tanveer Ul Islam, Oscar M.J.A. Stassen, Naomie Amsing, Jan de Boer, Jaap M.J. den Toonder   +5 more
wiley   +1 more source

A Scalable MAC Protocol Supporting Simple Multimedia Traffic QoS in WSNs

International Journal of Distributed Sensor Networks, 2011
Wireless sensor networks (WSNs) are a vibrant research field for the last several years. Especially, design of MAC protocols supporting multimedia traffic QoS is recent challenging work.
JeongSeok On, HahnEarl Jeon, Jaiyong Lee
doaj   +1 more source