Results 41 to 50 of about 599 (161)

Fusion of SoOp, photogrammetry and 3D map for indoor positioning system on smart devices

Alexandria Engineering Journal
The growing demand for Indoor Location-Based Services (ILBS) highlights the need for accurate and infrastructure-free Indoor Positioning Systems (IPS), as traditional Global Navigation Satellite Systems (GNSS) usually lack accessibility indoors.
Yuan Yang, Charles Toth
doaj   +1 more source

DL-IPS: Deep Learning Based Indoor Positioning System for Improved Accuracy

International Journal of Recent Technology and Engineering (IJRTE), 2019
Indoor tracking has evolved with various methods and well known these days. There are diverse types of solutions that concentrate on exactness, low cost, and control utilization within the field. Particularly in recent years, Received Signal Strength Indicator based positioning estimation have been getting popular. Still, the accuracy are not adequate,
Bhulakshmi Bonthu*, Subaji M
openaire   +1 more source

K+‐Triggered Defect Engineering and Proton‐Coupled Storage in V2O5·nH2O for Advanced Zn‐Ion Thin‐Film and Microbatteries

Advanced Science, EarlyView.
K+ pre‐intercalation in V2O5·nH2O induces interlayer contraction, oxygen‐vacancy formation, and mixed‐valence states, activating defect‐mediated proton‐dominated transport. This enables cooperative H+/Zn2+ storage with enhanced kinetics and stability. The resulting Zn‐based thin‐film and microbatteries deliver high areal energy and capacity, offering a
Jingli Luo, Sanat Nalini Paltasingh, Bastola Narayan, Yijia Zhu, Debashish Das, Shuhui Li, Firoz Alam, Subhra R. Pattanayak, Sijin Liu, Tharangattu N. Narayanan, Georgios Nikiforidis, Gopinathan Sankar, Ivan P. Parkin, Saroj Kumar Nayak, Buddha Deka Boruah   +14 more
wiley   +1 more source

Reversed Three-Dimensional Visible Light Indoor Positioning Utilizing Annular Receivers with Multi-Photodiodes

Sensors, 2016
Exploiting the increasingly wide use of light emitting diodes (LEDs) lighting, in this paper we propose a reversed indoor positioning system (IPS) based on LED visible light communication (VLC) in order to improve indoor positioning accuracy.
Yinfan Xu, Jiaqi Zhao, Jianyang Shi, Nan Chi   +3 more
doaj   +1 more source

Accuracy and Precision Assessment of AoA-Based Indoor Positioning Systems Using Infrastructure Lighting and a Position-Sensitive Detector

Sensors, 2020
Unlike GNSS-based outdoor positioning, there is no technological alternative for Indoor Positioning Systems (IPSs) that generally stands out from the others.
Álvaro De-La-Llana-Calvo, David Salido-Monzú, José-Luis Lázaro-Galilea, Alfredo Gardel-Vicente, Ignacio Bravo-Muñoz, Borja Rubiano-Muriel   +5 more
doaj   +1 more source

High‐Efficiency Precipitate Recycling Strategy Paves the Way for Efficient Sb2S3 Solar Cells Fabricated by CBD Method

Advanced Science, EarlyView.
A novel PR strategy was proposed to improve CBD‐derived Sb2S3 film quality. It synergistically optimized the CBO of CdS/Sb2S3 interface and the back‐contact barrier, while the VS2 donor defect was converted into SSb2 acceptor defect with lower concentration.
Yeyang Lin, Zixian Cai, Mingen Zheng, Ye Huang, Weihuang Wang, Qiqiang Zhu, Qing Gao, Jianhui Chen, Shuying Cheng   +8 more
wiley   +1 more source

Time Difference of Arrival Based Indoor Positioning System Using Visible Light Communication

IEEE Access, 2021
Visible Light Communication (VLC) is a novel optical wireless communication technology which uses Light Emitting Diodes (LEDs) and Photodiodes for coherent detection and very-high-data rate data communication system.
Saad Mehmood Sheikh, Hafiz M. Asif, Kaamran Raahemifar, Fadi Al-Turjman   +3 more
doaj   +1 more source

A cost‐effective DNA extraction protocol for long‐read sequencing in non‐model plants

Applications in Plant Sciences, EarlyView.
Abstract Premise Third‐generation sequencing has revolutionized genomics, enabling in‐depth analysis of genome sequence, structure, and epigenetic features. Yet, extracting high‐quality DNA for long‐read sequencing remains a bottleneck—particularly in non‐model plants, such as mature trees growing in natural environments, which often contain abundant ...
Sofia Gaischuk, Cintia F. Marchetti, Ezequiel Petrillo, Fernando A. Rabanal, Detlef Weigel, Nicolás Bellora, M. Verónica Arana   +6 more
wiley   +1 more source

A secure and high-accuracy indoor positioning system using deep temporal fusion transformer and Galois field encryption

Journal of Big Data
Indoor Positioning Systems (IPS) have garnered substantial interest due to their critical role in navigation, asset tracking, and security applications. However, conventional IPS technologies often face significant limitations in accuracy, security, and ...
Mohammad Mazyad Hazzazi, Piyush Kumar Shukla, Prashant Kumar Shukla, Zaid Bassfar, Amer Aljaedi, Mohd Asif Shah   +5 more
doaj   +1 more source

Indoor Positioning System Based on a PSD Detector, Precise Positioning of Agents in Motion Using AoA Techniques

Sensors, 2017
Here, we present an indoor positioning system (IPS) for detecting mobile agents based on a single Position Sensitive Device sensor (PSD) sited in the environment and InfraRed Emitter Diode (IRED) located on mobile agents.
David Rodríguez-Navarro, José Luis Lázaro-Galilea, Álvaro De-La-Llana-Calvo, Ignacio Bravo-Muñoz, Alfredo Gardel-Vicente, Georgios Tsirigotis, Juan Iglesias-Miguel   +6 more
doaj   +1 more source