Results 71 to 80 of about 1,169,905 (342)

Precession during merger 1: Strong polarization changes are observationally accessible features of strong-field gravity during binary black hole merger

, 2013
The short gravitational wave signal from the merger of compact binaries encodes a surprising amount of information about the strong-field dynamics of merger into frequencies accessible to ground-based interferometers.
Healy, J., London, L., O'Shaughnessy, R., Shoemaker, D.   +3 more
core   +1 more source

TreeSpider: In‐Canopy Exploration With Tether‐Based Aerial Modular Arms

Advanced Robotics Research, EarlyView.
A tethered drone with perching arms and a 360° ring enables unprecedented maneuverability within dense forest canopies. By dynamically adjusting tether length and decoupling pitch from the frame, it navigates between branches, senses multiple trees, and interacts physically with foliage.
Luca Romanello, Tian Lan, Salaheldin Hassan, Maximilian Leutschafft, Erdem Ekinci, Sophie F. Armanini, Mirko Kovac, Basaran Bahadir Kocer   +7 more
wiley   +1 more source

Enhancing GNSS Localization in Urban Canyons With a Hybrid CNN-Autoencoder Approach to LOS/NLOS Classification

IEEE Access
Non-Line-of-Sight (NLOS) reception is acknowledged as a primary source of positioning error in Global Navigation Satellite System (GNSS) applications, particularly within dense urban settings. When the direct satellite path is obstructed by buildings and
S. Titouni, I. Messaoudene, Y. Himeur, D. W. Dawoud, M. Belazzoug, B. Hammache, F. Chetouah, S. Atalla, W. Mansoor   +8 more
doaj   +1 more source

Performance of Multi-hop Command and Telemetry Communication System in 169 MHz Band for Operation of Drones Beyond Line-of-Sight [PDF]

, 2022
Ryu Miura
openalex   +1 more source

A fourth HI 21-cm absorption system in the sight-line of MG J0414+0534: a record for intervening absorbers [PDF]

, 2013
We report the detection of a strong HI 21-cm absorption system at z=0.5344, as well as a candidate system at z=0.3389, in the sight-line towards the z=2.64 quasar MG J0414+0534.
Bignell, C., Curran, S. J., Tanna, A., Webb, J. K., Whiting, M. T.   +4 more
core   +1 more source

A Multidirectional Textile Interface for Remote Control Using Dynamic Area‐Based Capacitance Modulation

Advanced Robotics Research, EarlyView.
Here, we present a textile, wearable capacitive interface enabling multidirectional remote control by dynamically modulating electrode overlap and spacing via a freely gliding upper electrode. A forearm‐mounted prototype drives robotic and media tasks with 12–15 ms latency, maintains < 0.8% drift after 500 cycles, and remains stably functional at 90 ...
Cagatay Gumus, Fulya Yenilmez, Kadir Ozlem, Hakan Kestir, Eren Tasdemir, Berkant Bakisli, Gökhan Ince, Ozgur Atalay, Asli Tuncay Atalay   +8 more
wiley   +1 more source

Error analysis of line-of-sight measurement for video satellite

Advances in Mechanical Engineering, 2017
Compared to ground-based observation, using video satellite to track space objects and determine the orbit has a unique advantage, which can provide strong support for space mission guarantee, object identification, important spacecraft collision warning,
Xueyang Zhang, Junhua Xiang, Yulin Zhang
doaj   +1 more source

A statistically optimal analysis of systematic differences between Aeolus horizontal line-of-sight winds and NOAA's Global Forecast System [PDF]

, 2022
Hui Liu, Kevin Garrett, Kayo Ide, Ross N. Hoffman, Katherine E. Lukens   +4 more
openalex   +1 more source

Cross‐Scale Hierarchical Targeted Delivery System Based on Small‐Scale Magnetic Robots

Advanced Robotics Research, EarlyView.
This article reviews a cross‐scale hierarchical targeted delivery system that integrates magnetic continuum robots and magnetic microrobots. By combining rapid long‐range navigation with precise microscale targeting, the system overcomes key limitations of single‐scale approaches.
Junjian Zhou, Zhiqiang Chen, Yuanbiao Ma, Zhiqiang Tang, Qianqian Wang   +4 more
wiley   +1 more source

The first measurement of temperature standard deviation along the line-of-sight in galaxy clusters

, 2012
Clusters of galaxies are mainly formed by merging of smaller structures, according to the standard cosmological scenario. If the mass of a substructure is >10% of that of a galaxy cluster, the temperature distribution of the intracluster medium (ICM) in ...
Akahori, Birkinshaw, Challinor, Colafrancesco, Colafrancesco, Colafrancesco, D. A. Prokhorov, Gomez, Halverson, Hansen, Itoh, Johansson, Markevitch, Markevitch, Mazzotta, Million, Ota, Prokhorov, Prokhorov, Rephaeli, Rybicki, S. Colafrancesco, Samsing, Sunyaev, Tucker, Wright, Zel’dovich, Zemcov   +27 more
core   +1 more source