Results 81 to 90 of about 4,646,261 (335)

Optimal cluster head deployment in heterogeneous wireless sensor networks

open access: yesTongxin xuebao, 2010
Cluster-based method has better adaptability and energy-efficiency to wireless sensor networks(WSN) used for environmental monitoring.If the cluster head is served by more powerful node,the performance of WSN will be improved greatly.In large scale WSN ...
LIU Lin1, YU Hai-bin2
doaj   +2 more sources

Adaptation and validation of the Arabic version of Total Nasal Symptom Score (TNSS)

open access: yesThe Egyptian Journal of Otolaryngology
Background Allergic rhinitis is a common condition that is characterized by the presence of inflammation in the nasal mucosa in response to allergen exposure. Several subjective tools were developed to evaluate and diagnose this condition.
Moath A. Alfaleh   +7 more
doaj   +1 more source

A Hybrid Energy- and Time-Driven Cluster Head Rotation Strategy for Distributed Wireless Sensor Networks

open access: yesInternational Journal of Distributed Sensor Networks, 2013
Clustering provides an effective way to extend the lifetime and improve the energy efficiency of wireless sensor networks (WSNs). However, the cluster heads will deplete energy faster than cluster members due to the additional tasks of information ...
Guoxi Ma, Zhengsu Tao
doaj   +1 more source

Residual Energy-Aware Clustering Transformation for LEACH Protocol

open access: yesJournal of Telecommunications and Information Technology, 2021
Energy is one of the crucial performance parameters in wireless sensor networks (WSNs). Enhancement of network lifetime is an important consideration as well. Low energy-aware clustering hierarchy (LEACH) is one of the protocols proposed for WSNs.
P. Ullas, K. S. Shivaprakasha
doaj   +1 more source

Testing the Structure of a Gaussian Graphical Model with Reduced Transmissions in a Distributed Setting

open access: yes, 2019
Testing a covariance matrix following a Gaussian graphical model (GGM) is considered in this paper based on observations made at a set of distributed sensors grouped into clusters.
Blum, Rick S.   +3 more
core   +1 more source

Screening and epitope characterization of Nidogen‐2‐specific nanobodies

open access: yesFEBS Open Bio, EarlyView.
Camel immunization and phage display were employed to generate high‐affinity VHH nanobodies against Nidogen‐2. After library construction, biopanning, ELISA screening, sequencing, and recombinant expression, selected nanobodies were purified and characterized, leading to the preliminary exploration of a nanobody‐based sandwich ELISA for specific ...
Jianchuan Wen   +9 more
wiley   +1 more source

The effect of giant molecular clouds on star clusters [PDF]

open access: yes, 2006
We study the encounters between stars clusters and giant molecular clouds (GMCs). The effect of these encounters has previously been studied analytically for two cases: 1) head-on encounters, for which the cluster moves through the centre of the GMC and ...
H.J.G.L.M. Lamers   +4 more
core   +3 more sources

Fuzzy based enhanced cluster head selection (FBECS) for WSN

open access: yes, 2020
For efficient data gathering in context to energy dissipation, WSN is divided into clusters. Clustering not only organizes a deployed network into connected hierarchy but also balances the network load thereby dragging out the lifetime of the system.
P. S. Mehra, M. N. Doja, Bashir Alam
semanticscholar   +1 more source

Super‐Refractory Status Epilepticus (SRSE) in a Patient With Compound Heterozygous OPA1 Variants: Case Report and Literature Review

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Super‐Refractory Status Epilepticus (SRSE) is a rare, life‐threatening neurological emergency with unclear etiology in many cases. Mitochondrial dysfunction, often due to disease‐causing genetic variants, is increasingly recognized as a cause, with each gene producing distinct pathophysiological mechanisms.
Pouria Mohammadi   +2 more
wiley   +1 more source

Role of Roadside Units in Cluster Head Election and Coverage Maximization for Vehicle Emergency Services

open access: yesComputers
Efficient clustering algorithms are critical for enabling the timely dissemination of emergency messages across maximum coverage areas in vehicular networks.
Ravneet Kaur   +4 more
doaj   +1 more source

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