Results 51 to 60 of about 27,954 (198)

Graph-Based Semi-Supervised Learning for Indoor Localization Using Crowdsourced Data

Applied Sciences, 2017
Indoor positioning based on the received signal strength (RSS) of the WiFi signal has become the most popular solution for indoor localization. In order to realize the rapid deployment of indoor localization systems, solutions based on crowdsourcing have
Liye Zhang, Shahrokh Valaee, Yubin Xu, Lin Ma, Farhang Vedadi   +4 more
doaj   +1 more source

Recent Advances in Pickering Emulsion Templated Phase Change Material Microcapsules: Design, Fabrication, and Multifunctional Applications

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Fabrication process of phase change microcapsules using a Pickering emulsion template method and their subsequent applications. The increasing demand for efficient thermal energy storage systems has driven the development of phase change material microcapsules (PCMMs), which provide high energy‐storage density, reversible phase change, and reduced ...
Ziyan Li, Jinsheng Sun, Kaihe Lv, Chaozheng Liu, Meichun Li   +4 more
wiley   +1 more source

An Improved Algorithm to Generate a Wi-Fi Fingerprint Database for Indoor Positioning

Sensors, 2013
The major problem of Wi-Fi fingerprint-based positioning technology is the signal strength fingerprint database creation and maintenance. The significant temporal variation of received signal strength (RSS) is the main factor responsible for the ...
Zhengqi Zheng, Chris Rizos, Lina Chen, Binghao Li, Kai Zhao   +4 more
doaj   +1 more source

A hidden semi-Markov model for indoor radio source localization using received signal strength

Signal Processing, 2020
Multipath propagation makes the use of received signal strength (RSS) unreliable as a signal propagation model for localization of a radio source based on RSS data.
Shuai Sun, Xuezhi Wang, B. Moran, Wayne S. T. Rowe   +3 more
semanticscholar   +1 more source

Heterogeneous Single/Dual‐Atom Electrocatalysts in Lithium–Sulfur Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This review summarizes recent advances in single‐atom and dual‐atom electrocatalysts for high‐performance lithium–sulfur batteries. The text systematically covers the classification of catalysts by active metal centers, key synthesis methods, in situ characterization for mechanistic insights, and electrocatalytic mechanisms.
Wenbin Li, Ying Xin, Zhaoliang Zhang, Jin Wang   +3 more
wiley   +1 more source

Instantaneous received signal strength-based sensor activation for energy-efficient distributed cooperative sensor networks

ICT Express
In this paper, a network-independent distributed relay sensor (RS) activating method is proposed for energy-efficient cooperative communications using RSs.
Jingon Joung, Jian Zhao
doaj   +1 more source

Treatment With the Shaker Head‐Lift Exercise in Head and Neck Cancer Patients With Radiation‐Induced Dysphagia: 12‐Month Results on Swallowing Function From a Randomized, Controlled Trial

Head &Neck, EarlyView.
ABSTRACT Background Dysphagia is a common side‐effect after radiotherapy in head and neck cancer patients. This randomized study aimed to evaluate the effect of the shaker head‐lift exercise (HLE) after 12 months with flexible endoscopic evaluation of swallowing (FEES). Methods Patients were randomly assigned to the intervention (n = 30) or the control
Signe Rödseth Smith, Caterina Finizia, Kerstin Petersson, Lisa Tuomi   +3 more
wiley   +1 more source

Location Estimation Using Space-Time Signal Processing in RFID Wireless Sensor Networks

International Journal of Distributed Sensor Networks, 2013
We consider real-time locating systems (RTLS) consisting of radio frequency identification (RFID) tags and multiantenna readers to propose a novel location estimation algorithm based on the concept of space-time signature matching for multipath ...
Chang-Heon Oh
doaj   +1 more source

Self‐Reported Confidence and Perceived Barriers in Raising Concerns Among Dental Students and Trainees in the Gulf Cooperation Council Region

Journal of Dental Education, EarlyView.
ABSTRACT Introduction Raising concerns is essential to patient safety and professionalism in healthcare. Dental students and trainees, however, may encounter unique challenges in voicing concerns within clinical training environments. This study explores self‐reported confidence and perceived barriers in raising concerns among dental students and ...
Manal Matoug‐Elwerfelli, Layla Hassouneh, Kamran Ali, Rebecca Glanville, Dilek Helvacioglu‐Yigit, Eman Alnuaimi, Prathibha Prasad, Hazza Alhobeir, Rahaf Almohareb, Hayat Alghutaimel, Aisha Almoadhadi, Archa Asokan, Mawlood Kowash   +12 more
wiley   +1 more source

Received Signal Strength Characterization in Mixed LOS and NLOS Environments

IEEE Transactions on Aerospace and Electronic Systems
The received signal strength (RSS) measurement is widely adopted in wireless positioning due to its simplicity and accessibility. This article utilizes the Boolean line model (BLM) to characterize the RSS distribution considering both line-of-sight (LOS)
Chao Wang, Jiajun He, Wenxin Xiong, H. C. So, Young Jin Chun   +4 more
semanticscholar   +1 more source