Results 21 to 30 of about 168,119,012 (264)

Empowering IoT: leveraging data sensor communication with LoRAWAN in diverse environments

Acta Polytechnica
The Internet of Things (IoT) connects countless devices, such as sensors and actuators, necessitating an efficient long-range communication technology.
Noprianto Noprianto, Habibie Ed Dien, Septian Enggar Sukmana, Fayyadh Al Baity, Mustika Mentari   +4 more
doaj   +1 more source

Optimum Model for Tracking of Moving Objects

Pakistan Journal of Engineering & Technology, 2023
 In wireless communication, it is a challenge to find the accurate position of moving objects. The presented work proposes the GPS receiver to measure the position and velocity of moving objects.
Muzaffar Hussain, Lubna Farhi, Farhan Ur Rehman   +2 more
doaj   +1 more source

Development of a Disease Activity Index for the Assessment of VEXAS Syndrome (VEXAS‐DAI)

Arthritis Care &Research, EarlyView.
Objective Vacuoles, E1 enzyme, X‐linked, autoinflammatory, somatic syndrome (VEXAS) syndrome is characterized by a complex spectrum of inflammatory and hematologic manifestations. Clinical research to identify effective therapies is urgently needed but is hindered by the lack of validated outcome measures.
Kevin Byram, Heřman Mann, Danielle Hammond, Onima Chowdhury, Sinisa Savic, Yohei Kirino, Carmelo Gurnari, Maël Heiblig, Thibault Comont, Arsène Mekinian, Mrinal M. Patnaik, Lachelle D. Weeks, Gary Ho, Adam Al‐Hakim, Scott Goldberg, Marcela A. Ferrada, Sophie Georgin‐Lavialle, Peter C. Grayson, Emma M. Groarke, Bhavisha Patel, Megan Sullivan, Sarah A. Buckley, Bryan G. Harder, Raman Garcha, David B. Beck, Matthew J. Koster   +25 more
wiley   +1 more source

UWB Indoor Localization Based on Artificial Rabbit Optimization Algorithm and BP Neural Network

Biomimetics
In the field of ultra-wideband (UWB) indoor localization, traditional backpropagation neural networks (BPNNs) are limited by their susceptibility to local minima, which restricts their ability to achieve global optimization.
Chaochuan Jia, Can Tao, Ting Yang, Maosheng Fu, Xiancun Zhou, Zhendong Huang   +5 more
doaj   +1 more source

A Single-Shot Non-Line-of-Sight Range-Finder

Sensors, 2019
The ability to locate a target around a corner is crucial in situations where it is impractical or unsafe to physically move around the obstruction. However, current techniques are limited to long acquisition times as they rely on single-photon counting ...
James Brooks, Daniele Faccio
doaj   +1 more source

A mobile localization method based on a robust extend Kalman filter and improved M-estimation in Internet of things

International Journal of Distributed Sensor Networks, 2020
As the key technology for Internet of things, wireless sensor networks have received more attentions in recent years. Mobile localization is one of the significant topics in wireless sensor networks.
Nan Hu, Chuan Lin, Fangjun Luan, Chengdong Wu, Qi Song, Li Chen   +5 more
doaj   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Measurements and Models of 915 MHz LoRa Radio Propagation in an Underground Gold Mine

Sensors, 2022
Underground mining increasingly relies on wireless communications for its operations. The move to automating many underground mining processes makes an understanding of the propagation characteristics of key wireless technologies underground a topic of ...
Philip Branch
doaj   +1 more source

Structure‐Property Relationships in Catecholamine Coatings for Broad Surface Functionalization

Advanced Functional Materials, EarlyView.
Inspired by mussel adhesive proteins (MAPs), six catecholamine molecules with different molecular structure were systematically characterized and compared based on their ability to form homogeneous, reactive coatings. Highlighting candidates capable of balancing coating properties of interest, their successful use as primer layers for organic and ...
Caroline F. Harms, Qiming Li, Ye‐Sol Kim, Anish Tuteja, Jinsang Kim, Abdon Pena‐Francesch   +5 more
wiley   +1 more source

Empirical Season’s Fadings in Radio Communication at 6 GHz Band

Journal of Telecommunications and Information Technology, 2009
This paper covers unavailability of line-of-sight radio links due to multipath propagation. Multipath fading in the atmosphere is not permanent phenomenon.
Jan Bogucki, Ewa Wielowieyska
doaj   +1 more source