Results 91 to 100 of about 17,740,432 (196)

Impact of Storage Temperature and Duration on Dimensional Stability and Mechanical Properties of 3D‐Printed Implant Surgical Guides

open access: yesJournal of Esthetic and Restorative Dentistry, Volume 38, Issue 10, Page 1969-1978, October 2026.
ABSTRACT Objective This study aimed to evaluate the impact of storage temperature and duration on the dimensional stability and mechanical properties of 3D‐printed surgical guides. Materials and Methods Sixty surgical guides were designed using two software programs (3Shape and SMOP) and printed with NextDent SG resin.
Sung‐Jin Kim   +5 more
wiley   +1 more source

A Self Regulating and Crowdsourced Indoor Positioning System through Wi-Fi Fingerprinting for Multi Storey Building

open access: yesSensors, 2018
Unobtrusive indoor location systems must rely on methods that avoid the deployment of large hardware infrastructures or require information owned by network administrators.
Soumya Prakash Rana   +4 more
doaj   +1 more source

The Four Key Challenges of Advanced Multisensor Navigation and Positioning [PDF]

open access: yes, 2014
The next generation of navigation and positioning systems must provide greater accuracy and reliability in a range of challenging environments to meet the needs of a variety of mission-critical applications.
Martin, H   +11 more
core   +1 more source

Multifunctional Transition Metal Dichalcogenide‐Based Electronic Skin for AI‐Enhanced Multimodal Human–Machine Interaction and Robotic Control

open access: yesAggregate, Volume 7, Issue 9, September 2026.
The proposed e‐skin incorporates multimodal sensing capabilities, including surface electromyography (sEMG), NO2 sensing, photodetection, and temperature monitoring, allowing for seamless human‐robot interaction. By integrating sEMG‐based gesture recognition with voice commands and an LLM‐assisted task planning module, we developed a robotic control ...
He Zhu   +12 more
wiley   +1 more source

Effects of Acute Aerobic Exercise and Task Repetition on the Neural Correlates of Executive Function in Young and Older Adults: A Crossover fMRI Study

open access: yesJournal of Magnetic Resonance Imaging, Volume 64, Issue 3, Page 751-764, September 2026.
ABSTRACT Background Acute aerobic exercise may alter neural recruitment supporting executive function; however, age‐related differences and task repetition effects remain unclear. Purpose To investigate the effects of acute aerobic exercise and task repetition on brain activity during task switching in young and older adults.
Ryota Asahara   +6 more
wiley   +1 more source

Location Accuracy Optimization in Bluetooth Low Energy (BLE) 5.1-Based Indoor Positioning System (IPS)—A Machine Learning Approach

open access: yesIEEE Access, 2023
Indoor Positioning System (IPS) is a technology used to locate and track objects or people inside buildings, by using sensors, wireless networks, or other means to determine their position. IPS has many applications in various fields such as healthcare, retail, logistics, and security.
Dasmond Roy Philips   +3 more
openaire   +1 more source

Impact of Life‐Context Factors on Chronic Rhinosinusitis 22‐Item Sinonasal Outcomes Test: Systematic Review + Meta‐Analysis

open access: yesOtolaryngology–Head and Neck Surgery, Volume 175, Issue 3, Page 556-570, September 2026.
Abstract Objective Chronic rhinosinusitis (CRS) affects all sociodemographic groups. While studies have explored social determinants of health (SDOH), sociodemographics, and health behaviors, their specific effects on CRS outcomes are unclear, making tailored care difficult.
Kassandra M. Jade   +8 more
wiley   +1 more source

Performance Enhancement of Wi-Fi Fingerprinting-Based IPS by Accurate Parameter Estimation of Censored and Dropped Data [PDF]

open access: yesRadioengineering, 2019
In complex indoor environments, the censoring, dropping, and multi-component problems may present in the observable data. This is due to the attenuation of signals, the unexpected operation of equipments, and the changing surrounding environment ...
T. K. Vu, M. K. Hoang, H. L. Le
doaj  

Indoor Visible Light Positioning Using Spring-Relaxation Technique in Real-World Setting

open access: yesIEEE Access, 2019
GPS has limitations in indoor applications. Consequently, other indoor localization techniques and systems are active areas of research. Visible Light Positioning (VLP) is a promising option, especially given the growing popularity of LED-based lighting ...
Fakhrul Alam   +3 more
doaj   +1 more source

Integrated LEO Constellation and In‐Cabin Distribution System for Continuous Aircraft 5G Connectivity

open access: yesInternational Journal of Satellite Communications and Networking, Volume 44, Issue 5, Page 594-606, September/October 2026.
ABSTRACT The integration of low Earth orbit (LEO) satellite constellations with commercial aircraft communication systems presents critical challenges in maintaining continuous connectivity during dynamic flight conditions. Current geostationary satellite systems suffer from high round‐trip latency ( > 500 ms) and inadequate coverage at high latitudes,
Raúl Parada   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy