Results 41 to 50 of about 60,504 (317)

Heterogeneous Drone Small Cells: Optimal 3D Placement for Downlink Power Efficiency and Rate Satisfaction

open access: yes, 2023
In this paper, we delve into the domain of heterogeneous drone-enabled aerial base stations, each equipped with varying transmit powers, serving as downlink wireless providers for ground users.
Nima Namvar   +2 more
core   +1 more source

Vision-Based Relative Pose Estimation of Non-Cooperative Spacecraft Using Time-of-Flight Camera

open access: yesIEEE Access
This paper deals with a vision-based pose estimation of a target using a time-of-flight (ToF) camera. In particular, a relative pose estimation algorithm for non-cooperative targets that lack markers or accessible sensor is proposed. The proposed method,
Sangdo Park   +3 more
doaj   +1 more source

Drone retinopathy

open access: yesJournal of Current Ophthalmology, 2019
To report a case of solar retinopathy due to inadvertent exposure to the sun while piloting a drone without protective eyewear.A 29-year-old male underwent a complete eye exam including optical coherence tomography (OCT) of the macula.Bilateral juxtafoveal outer retinal microcystic cavities present on OCT consistent with solar retinopathy.With the ...
Victoria Rohring   +4 more
openaire   +3 more sources

DVS: A Drone Video Synopsis towards Storing and Analyzing Drone Surveillance Data in Smart Cities

open access: yesSystems, 2022
The commercialization and advancement of unmanned aerial vehicles (UAVs) have increased in the past decades for surveillance. UAVs use gimbal cameras and LIDAR technology for monitoring as they are resource-constrained devices that are composed of ...
Palash Yuvraj Ingle   +2 more
doaj   +1 more source

Evaluation of Digital Technologies for Home‐Based Assessment in People With Amyotrophic Lateral Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Digital technologies hold promise for transforming healthcare by enhancing personalized treatments and offer valuable opportunities to improve patient care. Here, we evaluated several novel, self‐administered, home‐based, digital endpoints for their association with corresponding conventional standard clinical measures (primary) in ...
Arne Mueller   +14 more
wiley   +1 more source

Sex‐Stratified Association of Regional Dopamine Transporter Binding With Disease Progression in Amyotrophic Lateral Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To clarify the clinical relevance of dopamine transporter single‐photon emission computed tomography (DAT‐SPECT) abnormalities in amyotrophic lateral sclerosis (ALS), with a prespecified focus on sex‐stratified associations with disease progression and short‐term prognosis.
Tomoya Kawazoe   +7 more
wiley   +1 more source

The drone debate: sudden bullet or slow boomerang? [PDF]

open access: yes, 2013
Introduction: Growth in the manufacture, military use, and transfer of unmanned aerial vehicles (UAVs or drones) and their associated systems proceeds apace.
Roderic Alley
core  

Drone High-Rise Aerial Delivery with Vertical Grid Screening

open access: yes, 2023
Delivery drones typically perform delivery by suspending the parcel vertically or landing the drone to drop off the package. However, because of the constrained landing area and the requirement for precise navigation, delivering items to customers who ...
Endrowednes Kuantama   +4 more
core   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

open access: yesAdvanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt   +8 more
wiley   +1 more source

Nonlinear Regression-Based GNSS Multipath Modelling in Deep Urban Area

open access: yesMathematics, 2022
As the necessity of location information closely related to everyday life has increased, the use of global navigation satellite systems (GNSS) has gradually increased in populated urban areas.
Yongjun Lee, Byungwoon Park
doaj   +1 more source

Home - About - Disclaimer - Privacy