Results 21 to 30 of about 68,422 (267)

Impact of Beacon Order and Superframe Order on IEEE 802.15.4 for Nodes Association in WBAN

open access: yesEAI Endorsed Transactions on Energy Web, 2018
IEEE 802.15.4, Low data Rate low power Wireless Personal Area Network (LR-WPAN) standard uses fixed duty cycle of the superframe operation. Fixed duty cycle operation of the stated standard suffers from several network issues like Personal Area Network ...
Adil Sheraz   +6 more
doaj   +1 more source

A 50–1600 MHz Wide–Range Digital Duty–Cycle Corrector With Counter–Based Half–Cycle Delay Line

open access: yesIEEE Access, 2023
Duty-cycle distortion may occur due to variations in the process, voltage, and temperature, or if the clock signal passes through clock buffers. To compensate duty-cycle distortion, a digital duty-cycle corrector (DCC) with counter-based half-cycle delay
Jaewook Kim   +3 more
doaj   +1 more source

Data collection in sensornets with heterogeneous duty cycles: pursuit of efficient opportunity

open access: yesEURASIP Journal on Wireless Communications and Networking, 2018
For sensornets with heterogeneous duty cycles, sensor nodes wake up with different sleeping periods, which combined with unreliable links, making it very challenging to enhance the network performance.
Xinna Shang   +3 more
doaj   +1 more source

Key Technologies of Safety Performance of Explosion-proof Heavy-duty Electric Driven Shovel Truck

open access: yesMeikuang Anquan, 2020
This paper introduces the system architecture of explosion-proof heavy-duty electric driven shovel truck, and discusses the key technologies of safety performance of explosion-proof heavy-duty electric driven shovel truck in safety braking, automatic ...
ZHOU Dehua
doaj   +1 more source

Reinforcement Learning Based Adaptive Duty Cycling in LR-WPANs

open access: yesIEEE Access, 2020
For conserving energy, duty cycle is defined by setting up the active and sleep periods of network nodes. In beacon enabled networks, to provide support for duty cycle, the IEEE 802.15.4 standard uses optional super-frame structure.
Shahzad Sarwar   +5 more
doaj   +1 more source

VTA-SMAC: Variable Traffic-Adaptive Duty Cycled Sensor MAC Protocol to Enhance Overall QoS of S-MAC Protocol

open access: yesIEEE Access, 2021
Sensing and monitoring the physical conditions are basic purposes of Wireless Sensor Networks (WSN). Sensor nodes are the building blocks of WSN and they are battery operated.
Masood Ur Rehman   +4 more
doaj   +1 more source

Interlayer Performance, Viscoelastic Performance, and Road Performance Based on High-Performance Asphalt Composite Structures

open access: yesBuildings
Weaknesses generated in asphalt pavement structures have a serious impact on the service life of pavements. In order to improve such situations and achieve the goal of enhancing the durability of the pavement structure, this study assesses the ...
Yan Liang, Shuaishuai Ma, Yaqin Zhang
doaj   +1 more source

PRINCIPLES OF PERFORMING OFFICIAL DUTIES

open access: yesPRZEGLĄD POLICYJNY, 2019
Abstract: The article discusses the principles of performing police offi cial duties. Police offi cers cannot rely solely on discretion when performing police activities. Their performance is regulated in the relevant legal acts. Moreover, when performing offi cial activities, police offi cers should demonstrate not only knowledge of the law, but also ...
JANA ŠIMONOVÁ, Marian Peťovský
openaire   +1 more source

Sustained Therapeutic Efficacy of Intravenous Plasminogen Concentrate in Pediatric Patients With Type 1 Plasminogen Deficiency: An Analysis of Dosing Parameters and Clinical Outcomes

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Type 1 plasminogen deficiency (PLGD‐1) is an ultra‐rare autosomal recessive disorder caused by variants in the PLG gene and affects approximately 1.6 individuals per million. The condition is characterized by decreased plasminogen levels and impaired function, resulting in fibrin‐rich lesions on mucous membranes throughout the body.
Charles Nakar   +7 more
wiley   +1 more source

Comparative study of aeroacoustic performance of 1/8 and 1/1 pantographs coupled with cavity

open access: yesRailway Engineering Science
The technology of pantograph sinking in the cavity is generally adopted in the new generation of high-speed trains in China for aerodynamic noise reduction in this region. This study takes a high-speed train with a 4-car formation and a pantograph as the
Xiaoming Tan   +5 more
doaj   +1 more source

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