Results 81 to 90 of about 36,089 (189)

Thermal Resistance of 1D Micron‐Wide Interface Under External Force Modulation

open access: yesAdvanced Materials Interfaces, Volume 12, Issue 22, November 22, 2025.
A novel TET‐based technique is developed to characterize the interfacial thermal resistance at the microscale. The interfacial thermal resistance is measured at ≈1200–1400 mK/W for natural contact. Externally applied force reduces the thermal resistance dramatically down to ≈125 mK/W.
Amin Karamati   +3 more
wiley   +1 more source

A Study on Event-Driven TDMA Protocol for Wireless Sensor Networks

open access: yesEURASIP Journal on Wireless Communications and Networking, 2010
MAC protocol controls the activity of wireless radio of sensor nodes directly so that it is the major consumer of sensor energy and the energy efficiency of MAC protocol makes a strong impact on the network performance.
Chen Guihai   +3 more
doaj  

A method for detecting the presence of organic fraction in nucleation mode sized particles [PDF]

open access: yesAtmospheric Chemistry and Physics, 2005
New particle formation and growth has a very important role in many climate processes. However, the overall knowlegde of the chemical composition of atmospheric nucleation mode (particle diameter ...
P. Vaattovaara   +4 more
doaj  

Latency Improvement Strategies for Reliability-Aware Scheduling in Industrial Wireless Sensor Networks

open access: yesInternational Journal of Distributed Sensor Networks, 2015
We propose novel strategies for end-to-end reliability-aware scheduling in Industrial Wireless Sensor Networks (IWSNs). Because of stringent reliability requirements in industrial applications where missed packets may have disastrous or lethal ...
Felix Dobslaw   +2 more
doaj   +1 more source

Interference Management in Heterogeneous Networks with Blind Transmitters

open access: yes, 2016
Future multi-tier communication networks will require enhanced network capacity and reduced overhead. In the absence of Channel State Information (CSI) at the transmitters, Blind Interference Alignment (BIA) and Topological Interference Management (TIM ...
Johnson, Oliver   +2 more
core  

Throughput Maximization of Wireless Powered IoT Network With Hybrid NOMA-TDMA Scheme: A Genetic Algorithm Approach

open access: yesIEEE Access
In this study, we explore a hybrid non-orthogonal multiple access and time division multiple access (NOMA-TDMA) approach designed to maximize sum throughput in a wireless powered Internet of Things (IoT) network (WPIN).
Abid Afridi   +3 more
doaj   +1 more source

Energy Efficiency Optimization for UAV-RIS-Assisted Wireless Powered Communication Networks

open access: yesDrones
In urban environments, unmanned aerial vehicles (UAVs) can significantly enhance the performance of wireless powered communication networks (WPCNs), enabling reliable communication and efficient energy transfer for urban Internet of Things (IoTs) nodes ...
Xianhao Shen   +3 more
doaj   +1 more source

A DECENTRALIZED ADAPTIVE MEDIUM ACCESS CONTROL FOR V2I VANET

open access: yesICTACT Journal on Image and Video Processing, 2018
Vehicular Adhoc Networks (VANETs) resemble similar characteristic as Mobile Adhoc Network (MANETs). The performance of VANET are affected by factors such as mobility, vehicle density and environmental condition.
Neelambike S, Chandrika J
doaj   +1 more source

A New Evaluation Criterion for Non-Orthogonal Multiple Access in 5G Software Defined Networks

open access: yesIEEE Access, 2015
In this paper, a new evaluation criterion is developed to investigate the performance of non-orthogonal multiple access (NOMA) from an information theoretic point of view.
Peng Xu   +3 more
doaj   +1 more source

Development of an H-TDMA for long-term unattended measurement of the hygroscopic properties of atmospheric aerosol particles [PDF]

open access: yesAtmospheric Measurement Techniques, 2009
A new hygroscopic tandem differential mobility analyzer (H-TDMA) has been constructed at Lund University within the frameworks of the EU FP6 Infrastructure Project EUSAAR (<a href="http://www.eusaar.org/" target="_blank">http://www.eusaar.org/< ...
B. Svenningsson   +5 more
doaj  

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