Results 91 to 100 of about 2,656,564 (343)
Multi-source passive localization via multiple unmanned aerial vehicles
Scientia Sinica Informationis, 2019 Passive source localization via multiple unmanned aerial vehicles (UAVs) is a key technology for the practical application of military reconnaissance. Previous studies primarily focused on the localization of a single source.
Xiaomei Qu, Tao Liu, Wenrong Tan
semanticscholar +1 more source
The Geometry of Far-Field Passive Source Localization With TDOA and FDOA
IEEE Transactions on Aerospace and Electronic Systems, 2021 Passive localization of acoustic or radio-frequency sources is often performed using time-difference-of-arrival (TDOA) measurements and/or frequency-difference-of-arrival (FDOA) measurements.
Karleigh Pine, Samuel Pine, M. Cheney
semanticscholar +1 more source
Arthritis Care &Research, EarlyView.Objective We aimed to test the efficacy of personalized treatment of older veterans with chronic low back pain (CLBP) delivered by Aging Back Clinics (ABCs) as compared with usual care (UC). Methods Two hundred ninety‐nine veterans aged 65 to 89 with CLBP from three Veterans Affairs (VA) medical centers underwent baseline testing, randomization to ABC ...
Debra K. Weiner +9 more
wiley +1 more source
Short-range passive radar for small private airports surveillance [PDF]
, 2016 This paper investigates the effectiveness of a passive radar for enhancing the security level in small airports and private runways. Specifically WiFi transmissions are parasitically exploited to perform detection and localization of non-cooperative ...
BONGIOANNI, CARLO +4 more
core
Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control
Advanced Engineering Materials, EarlyView.This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian +4 more
wiley +1 more source
An Efficient Direct Position Determination Method for Multiple Strictly Noncircular Sources
Sensors, 2018 This paper focuses on the localization methods for multiple sources received by widely separated arrays. The conventional two-step methods extract measurement parameters and then estimate the positions from them.
Jiexin Yin, Ding Wang, Ying Wu
doaj +1 more source
EEG During Pedaling: Evidence for Cortical Control of Locomotor Tasks [PDF]
, 2013 Objective: This study characterized the brain electrical activity during pedaling, a locomotor-like task, in humans. We postulated that phasic brain activity would be associated with active pedaling, consistent with a cortical role in locomotor tasks ...
Gourab, Krishnaj +3 more
core +2 more sources
Advanced Engineering Materials, EarlyView.The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi +3 more
wiley +1 more source
IEEE Access, 2019 Frequency hopping (FH) signal has been widely used in military and civilian fields because of its superior anti-jamming performance. Meanwhile, its natural characteristics, i.e., hopped carrier frequency, brings a great challenge to the reconnaissance of
Zhixin Liu, Shiwen Chen, Yongjun Zhao
doaj +1 more source
Functional selectivity of GPCR-directed drug action through location bias. [PDF]
, 2017 G-protein-coupled receptors (GPCRs) are increasingly recognized to operate from intracellular membranes as well as the plasma membrane. The β 2 -adrenergic GPCR can activate G s -linked cyclic AMP (G s -cAMP) signaling from endosomes.
Conti, Marco +6 more
core +3 more sources