Results 41 to 50 of about 8,027 (255)

An Optimized Node Selection Routing Protocol for Vehicular Ad-hoc Networks – A Hybrid Model

open access: yesJournal of Communications Software and Systems, 2015
Vehicular Ad-hoc networks (VANETs) are a subset of Mobile Ad-hoc Networks made by vehicles communicating among themselves on roadways. The Routing protocols implemented for MANETs such as Ad-hoc on Demand Distance Vector Routing Protocol (AODV), Dynamic ...
Thangakumar Jeyaprakash   +1 more
doaj  

MANET Routing Protocols’ Performance Assessment Under Dynamic Network Conditions

open access: yesApplied Sciences
Mobile Ad Hoc Networks (MANETs) are decentralized wireless networks characterized by dynamic topologies and the absence of fixed infrastructure. These unique features make MANETs critical for applications such as disaster recovery, military operations ...
Ibrahim Mohsen Selim   +4 more
doaj   +1 more source

A comparative study of reactive, proactive and hybrid routing protocol in wireless sensor network under wormhole attack

open access: yesJournal of Electrical Systems and Information Technology, 2018
Nowadays, ZigBee communication protocol is one of the dominating standards for wireless sensor & ad-hoc networks and Internet of Things (IoT) networks. Even though the ZigBee standard was formed with security in mind and lower consumption of power, still
Jegan Govindasamy   +1 more
doaj   +1 more source

Engineered GM1 Intersects Between Mitochondrial and Synaptic Pathways to Ameliorate ALS Pathology

open access: yesAdvanced Science, EarlyView.
Amyotrophic Lateral Sclerosis (ALS) is a fatal neurodegenerative disease driven by genetic and molecular disruptions affecting energy balance, protein homeostasis, and stress responses in nerve cells. Studies using human and rodent models identified convergent defects in mitochondria and synaptic function.
Federica Pilotto   +11 more
wiley   +1 more source

Alternative Pathway for Methyl Supply through the Coupling of SHMT1 and PEMT to Maintain Astrocytic Homeostasis in Parkinson's Disease

open access: yesAdvanced Science, EarlyView.
In Parkinson's disease, SHMT1 downregulation disrupts its interaction with PEMT in astrocytes, reducing SAM levels. This leads to H3K4me1 hypomethylation and decreased Slc1a2/Glul expression, ultimately exacerbating neuroexcitotoxicity and dopaminergic neuron loss.
Yue‐Han Chen   +17 more
wiley   +1 more source

Improvement of Multi-robot Communication Protocol Based on NS2 [PDF]

open access: yesJisuanji gongcheng, 2016
In the application of multi-robot system communication,the Ad Hoc On-demand Distance Vector(AODV) routing protocol in Ad Hoc network has some disadvantages such as the low packet delivery ratio,the high communication delay when the network topology ...
WU Zhan,ZHANG Yunwei
doaj   +1 more source

Adaptive Routing in Wireless Mesh Networks Using Hybrid Reinforcement Learning Algorithm

open access: yesIEEE Access, 2022
Wireless mesh networks are popular due to their adaptability, easy-setup, flexibility, cost, and transmission time-reductions. The routing algorithm plays a vital role in transferring the data between the nodes.
Smita Mahajan   +2 more
doaj   +1 more source

Dorsal Raphe VIP Neurons Are Critical for Survival‐Oriented Vigilance

open access: yesAdvanced Science, EarlyView.
DRNVIP neurons in mice and primates are strategically positioned to influence the central extended amygdala via feedback loops. They regulate the excitability of PKC‐δ neurons in the ovBNST and CeA through glutamate release. Their ablation heightens activity in these regions, disrupts active‐phase sleep architecture, enhances risk assessment behaviors ...
Adriane Guillaumin   +15 more
wiley   +1 more source

SIMULATION STUDY OF BLACKHOLE ATTACK IN THE MOBILE AD HOC NETWORKS [PDF]

open access: yesJournal of Engineering Science and Technology, 2009
A wireless ad hoc network is a temporary network set up by wireless nodes usually moving randomly and communicating without a network infrastructure.
SHEENU SHARMA, ROOPAM GUPTA
doaj  

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