Results 61 to 70 of about 3,204 (200)

How Flexible Are Grammars Past Puberty? The Case of Relative Clauses in Turkish‐American Returnees

Language Learning, Volume 76, Issue 2, Page 391-424, June 2026.
Abstract How flexible are grammars after puberty? To answer this, we test returnees: heritage speakers (HS) born in an immigration context who returned to their homeland in later years. If returnees are targetlike, then language is still malleable after puberty; in contrast, if maturational effects are in play, postpuberty returnees will show ...
Aylin Coşkun Kunduz, Silvina Montrul
wiley   +1 more source

Inferring Helmet Compliance on E-Scooters Using Bluetooth and Angle-of-Arrival (AoA) Technology

IEEE Transactions on Instrumentation and Measurement
The use of e-scooters and the associated head injuries have increased significantly in recent years. To protect the head and face of the riders, helmets are essential equipment, sometimes mandatory according to the regulations, which makes them an important research target. In this article, we propose a practical helmet monitoring system for e-scooters
Juan-Antonio Fernández-Madrigal, Jesús Manuel Gómez de Gabriel, María del Carmen Rey-Merchán, Antonio López Arquillos   +3 more
openaire   +3 more sources

Anhydrous minerals in asteroid Bennu: Evidence for well‐preserved primordial components

Meteoritics &Planetary Science, Volume 61, Issue 6, Page 963-986, June 2026.
Abstract Aqueously altered carbonaceous astromaterials are dominated by secondary minerals, but a minor fraction of primary, anhydrous silicates and oxides escape alteration, offering insight into the original composition of asteroid parent bodies. We report the mineralogy, petrology, mineral chemistry, and oxygen isotopes of anhydrous minerals—50 ...
S. S. Russell, I. A. Franchi, T. Salge, X. Zhao, R. H. Jones, A. J. King, N. V. Almeida, P. F. Schofield, H. C. Bates, E. A. Cortes‐Calderon, N. Kawasaki, Y. Yurimoto, Y. Marrocchi, G. Libourel, K. Thomas‐Keprta, L. P. Keller, K. Righter, T. J. McCoy, T. J. Zega, J. J. Barnes, A. N. Nguyen, S. Tachibana, H. C. Connolly Jr, D. S. Lauretta   +23 more
wiley   +1 more source

A Compact Angle-of-Arrival Tracking System for Free-Space Optical Communication Systems

, 2020
We propose a compact angle-of-arrival (AoA) tracking system without requiring the beacon light. The proofof-concept experimental demonstration shows that the proposed system improves the tolerance to AoA fluctuations by ~3 ...
Kim, Hoon, Hoon Kim, Vuong V. Mai, Mai, Vuong V   +3 more
core   +1 more source

Optical angle‐of‐arrival (AoA) sensor for the motion analysis of knee joints

Electronics Letters, 2017
The most widely used clinical technique for estimating bone movements in knee joints with acceptable accuracy utilises implantation of heavy metallic beads into the bones. These small metallic objects become visible as highly contrasting features in captured radiographs, thus facilitating post kinematic assessment of bones in human joints with pinpoint
openaire   +1 more source

Recent Developments in Deep‐Ultraviolet Flat Optics

Nanophotonics, Volume 15, Issue 10, 27 May 2026.
Deep‐ultraviolet flat optics (DUVFO) is emerging as a key platform for next‐generation photonics, enabling advanced functionalities beyond conventional DUV optics. This review outlines materials, devices, and system advances, highlighting wide‐bandgap platforms, while identifying key challenges in dispersion control, characterization, and wafer‐scale ...
Omar A. M. Abdelraouf, Tao Wang, Zeng Wang   +2 more
wiley   +1 more source

3D Angle-of-Arrival Positioning Using von Mises-Fisher Distribution

, 2018
We propose modeling an angle-of-arrival (AOA) positioning measurement as a 3-dimensional von Mises-Fisher (VMF)-distributed unit vector instead of the conventional normally distributed azimuth and elevation measurements.
Nurminen, Henri, Henri Nurminen, Robert Piche, Simo Ali-Loytty, Piche, Robert, Suomalainen, Laura, Laura Suomalainen, Ali-Löytty, Simo   +7 more
core   +1 more source

Aerodynamic Characteristics of Airfoils Equipped With Gurney Flaps and Vortex Generators for the Entire Range of Pitch Angles

Wind Energy, Volume 29, Issue 5, May 2026.
ABSTRACT An experimental study of NACA0021 airfoil equipped with vortex generators (VGs) and Gurney flaps (GFs) was conducted to assess the effects of these devices on the aerodynamic airfoil performance, the information that is necessary for studying the self‐starting characteristics of vertical axis wind turbines (VAWTs).
Marin Ivanković, Marvin Jentzsch, Marinos Manolesos, Christian Navid Nayeri, Hrvoje Kozmar   +4 more
wiley   +1 more source

Angle-of-Arrival Estimation in Large-Scale Hybrid Antenna Arrays

, 2023
Large-scale hybrid antenna arrays are able to leverage array gains, transceiver sizes, and costs for massive multiple-input-multiple-output (MIMO) communications in the millimeter-wave and terahertz frequency bands.
Guo, YJ, Wu, K
core   +1 more source

Cascade AOA Estimation Algorithm Based on Flexible Massive Antenna Array

Sensors, 2020
The Angle-of-Arrival (AOA) has a variety of applications in civilian and military wireless communication fields. Due to the rapid development of the location-based service (LBS) industry, the importance of the AOA estimation technique has increased ...
Tae-yun Kim, Suk-seung Hwang
doaj   +1 more source