Results 91 to 100 of about 242,952 (317)

Towards resilient community wireless mesh networks [PDF]

open access: yes, 2008
Wireless Mesh Networks are an increasingly common technology providing connectivity in many communities, particularly where Internet access is unavailable or restricted via more conventional means.
Bury, Sara   +3 more
core   +1 more source

Conductive Hydrogels for Exogenous Sensing and Cell Fate Control

open access: yesAdvanced Materials, EarlyView.
We engineer electrically conductive hydrogels by combining sulfated glycosaminoglycans with semiconducting polymers. These hydrogels bind bioactive proteins, including growth factors, whose release or retention can be modulated by low‐voltage stimulation. The hydrogels are also integrated as 3D channels in organic electrochemical transistors as part of
Teuku Fawzul Akbar   +15 more
wiley   +1 more source

Common security issues and challenges in wireless sensor networks and IEEE 802.11 wireless mesh networks

open access: yes, 2009
Both Wireless Mesh Network (WMN) and Wireless Sensor Network (WSN) are multi-hop wireless networks. WMN is an emerging community based integrated broadband wireless network which ensures high bandwidth ubiquitous internet provision to users, while, WSN ...
Loo, KK, Naeem, T
core  

A framework for use of wireless sensor networks in forest fire detection and monitoring [PDF]

open access: yes, 2012
Forest fires are one of the main causes of environmental degradation nowadays. Current surveillance systems for forest fires lack in supporting real-time monitoring of every point of a region at all times and early detection of fire threats.
Korpeoglu, Ibrahim   +5 more
core   +1 more source

Wireless sensor networks [PDF]

open access: yesIEEE Wireless Communications, 2004
Havinga, Paul J.M.   +2 more
openaire   +2 more sources

High‐Performance Transparent, Deformable, and Recoverable Biomimetic Stevia–PVA Hydrogel Triboelectric Nanogenerator with Machine Learning‐Assisted Motion Recognition

open access: yesAdvanced Materials, EarlyView.
A transparent, deformable stevia–PVA hydrogel triboelectric nanogenerator delivers significantly enhanced mechanical strength and electrical output through biomimetic hydrogen‐bonded networks. Coupled with machine learning–assisted signal recognition, the self‐powered hydrogel enables accurate human‐motion sensing for intelligent wearable and IoT ...
Thien Trung Luu   +5 more
wiley   +1 more source

Wireless Broadband Access: Policy Implications of Heterogeneous Networks [PDF]

open access: yes
A wireless heterogeneous network can help increase the access transmission speed and contribute thereby to the broadband deployment policies of administrations and telecommunications operators.
Rendon Schneir, Juan
core  

Advances in Magnesium‐Based Thermoelectrics: A Critical Review

open access: yesAdvanced Materials, EarlyView.
Magnesium‐based thermoelectric materials have emerged as promising candidates for low‐to‐mid‐temperature energy conversion due to their abundance, low cost, and competitive performance. This review summarizes recent advances in Mg3X2, MgAgSb, and Mg2X systems, covering transport mechanisms, fabrication strategies, stability challenges, and device ...
Li‐Min Zhang   +5 more
wiley   +1 more source

Enhanced Positioning Techniques for Hybrid Wireless Networks [PDF]

open access: yes, 2011
The objective of this paper is to propose a reliable and accurate positioning method, which provides location estimates for the mobile user in hybrid wireless network (IEEE802.11/WiFi, IEEE802.16/WiMAX and LTE technologies).
Zvikhachevskaya, Anna   +4 more
core  

IoT-Driven Microseismic Sensing System and Monitoring Platform for Landslide Detection

open access: yesIEEE Access
Landslides pose a significant threat to human life and infrastructure, causing extensive damage and fatalities. Effective monitoring and dissemination of early warnings of imminent landslides are constrained by a lack of precise spatial and temporal ...
P. K. Indukala   +2 more
doaj   +1 more source

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