Results 31 to 40 of about 124,366,313 (297)

Indoor positioning in 5G new radio: how it works, status quo of research, and the road ahead

ICT Express
In this paper, the architecture and mechanism of 5G New Radio indoor positioning schemes such as downlink time difference of arrival (DL-TDOA), uplink (UL) TDOA, multiple-cell round trip time (Multi-RTT), DL angle of departure, UL angle of arrival (AOA),
Jiaqi Li, Seung-Hoon Hwang
doaj   +1 more source

An Angle Recognition Algorithm for Tracking Moving Targets Using WiFi Signals with Adaptive Spatiotemporal Clustering

Sensors, 2021
An angle estimation algorithm for tracking indoor moving targets with WiFi is proposed. First, phase calibration and static path elimination are proposed and performed on the collected channel state information signals from different antennas.
Liping Tian, Liangqin Chen, Zhimeng Xu, Zhizhang Chen   +3 more
doaj   +1 more source

Using Angle of Arrival for Improving Indoor Localization

CoRR, 2021
In this paper, we primarily explore the improvement of single stream audio systems using Angle of Arrival calculations in both simulation and real life gathered data. We wanted to learn how to discern the direction of an audio source from gathered signal data to ultimately incorporate into a multi modal security system.
Sai Koppula, Shivang Singh
openaire   +2 more sources

RFID Localization Using Angle of Arrival Cluster Forming

International Journal of Distributed Sensor Networks, 2014
Radio Frequency IDentification (RFID) has been increasingly used to identify and track objects automatically. RFID has also been used to localize tagged objects.
Waleed Alsalih, Abdallah Alma'aitah, Wadha Alkhater   +2 more
doaj   +1 more source

Performance Analysis for AOA-Based Localization Under Millimeter-Wave Wireless Networks

IEEE Access, 2022
Millimeter-Wave (mmWave) communication is a promising solution for achieving high data rate and low latency in 5G wireless networks. Since directional beamforming and antenna arrays are exploited in the mmWave networks, accurate angle-of-arrival (AOA ...
Jiajun He, Young Jin Chun
doaj   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

The effectiveness of early lens extraction with intraocular lens implantation for the treatment of primary angle-closure glaucoma (EAGLE): study protocol for a randomized controlled trial [PDF]

, 2011
Glaucoma is the leading cause of irreversible blindness. Although primary open-angle glaucoma is more common, primary angle-closure glaucoma (PACG) is more likely to result in irreversible blindness.
Burr, JM, Vale L., Azuara-Blanco, Augusto; id_orcid, Gla, EIA-C, Friedman, D, Jimmy Lai, Cochran C., Ramsay C., Nolan, W, Cochran, C, Ramsay, C, Quayyum Zahidul, Azuara-Blanco A., Aung T., McDonald, A, Cochran, Claire, AzuaraBlanco, A, Zahidul Quayyum, McPherson, Gladys, Ramsay, Craig, Foster P., Friedman David, Lai Jimmy, Norrie, John David Taylor, Cochran Claire, McPherson Gladys, McDonald, Alison, Vale, L, Ramsay Craig, Winnie Nolan, Alison McDonald, Burr J.M., Burr, Jennifer M., Aung Tin, Paul Chew, null null, Azuara-Blanco, A, Quayyum, Z, McPherson, G, Azuara-Blanco, Augusto, Burr, Jennifer M, Quayyum, Zahidul, Effectiveness in Angle-closure Glaucoma of Lens Extraction (EAGL, Lai, Jimmy, Augusto Azuara-Blanco, Tin Aung, Foster, P, Norrie, John, Chew Paul, Burr Jennifer M, Foster, Paul, Effectiveness in Angle-closure Glaucoma of Lens Extraction (EAGLE) Study Group, Claire Cochran, David Friedman, Chew, Paul, Nolan, Winnie, Vale, Luke, Friedman D., Lai, J, Friedman, David, Chew P., McPherson G., Foster Paul, Norrie John, Norrie J., John Norrie, Lai J., Aung, T, Aung, Tin, Vale Luke, Craig Ramsay, Gladys McPherson, Paul Foster, McDonald A., McDonald Alison, Jennifer M Burr, Norrie, J, Chew, P, Nolan Winnie, Luke Vale, Quayyum Z., Nolan W., Azuara-Blanco Augusto   +82 more
core   +1 more source

A Simple Cross Correlation Switched Beam System (XSBS) for Angle of Arrival Estimation

IEEE Access, 2017
We propose a practical, simple and hardware friendly, yet novel and efficient, angle of arrival (AoA) estimation system. Our intuitive, two-phases cross-correlation-based system requires a switched beam antenna array with a single radio frequency ...
Ahmed Badawy, Tamer Khattab, Daniele Trinchero, Tarek M. Elfouly, Amr Mohamed   +4 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

TRAIL‐PEG‐Apt‐PLGA nanosystem as an aptamer‐targeted drug delivery system potential for triple‐negative breast cancer therapy using in vivo mouse model

Molecular Oncology, EarlyView.
Aptamers are used both therapeutically and as targeting agents in cancer treatment. We developed an aptamer‐targeted PLGA–TRAIL nanosystem that exhibited superior therapeutic efficacy in NOD/SCID breast cancer models. This nanosystem represents a novel biotechnological drug candidate for suppressing resistance development in breast cancer.
Gulen Melike Demirbolat, Aslihan Kucuk, Omer Erdogan, Samed Ozer, Bensu Kozan, Tugba Cuceli, Erkan Gumus, Evrim Cevik, Ozge Cevik   +8 more
wiley   +1 more source