Results 61 to 70 of about 89,960 (343)
Domestic Drone Surveillance: The Court’s Epistemic Challenge and Wittgenstein’s Actional Certainty [PDF]
, 2017 This article examines the domestic use of drones by law enforcement to gather information. Although the use of drones for surveillance will undoubtedly provide law enforcement agencies with new means of gathering intelligence, these unmanned aircrafts ...
Greenleaf Brice, Robert +1 more
core +1 more source
A Deep Learning Approach to Drone Monitoring
, 2017 A drone monitoring system that integrates deep-learning-based detection and tracking modules is proposed in this work. The biggest challenge in adopting deep learning methods for drone detection is the limited amount of training drone images.
Aggarwal, Pranav +3 more
core +1 more source
Design of a Ballistically-Launched Foldable Multirotor [PDF]
, 2019 The operation of multirotors in crowded environments requires a highly reliable takeoff method, as failures during takeoff can damage more valuable assets nearby.
Bouman, Amanda +5 more
core +2 more sources
Advanced Functional Materials, EarlyView.This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous
Mingfeng Xu +5 more
wiley +1 more source
Trajectory Design of Laser-Powered Multi-Drone Enabled Data Collection System for Smart Cities [PDF]
, 2019 This paper considers a multi-drone enabled data collection system for smart cities, where there are two kinds of drones, i.e., Low Altitude Platforms (LAPs) and a High Altitude Platform (HAP).
Du, Yao +3 more
core +2 more sources
3D‐Printed Sulfur‐Derived Polymers With Controlled Architectures for Lithium‐Sulfur Batteries
Advanced Functional Materials, EarlyView.Rheology‐guided formulation design for direct ink writing enables the fabrication of 3D sulfur copolymer cathodes with controlled architectures for lithium‐sulfur batteries. The printed electrodes exhibit multiscale porosity and high sulfur utilization, delivering enhanced electrochemical performance compared to conventional cast electrodes.
Bin Ling +7 more
wiley +1 more source
Drone Technology in Agriculture Appraisal
, 2021 The purpose of this project is to conduct a cost-benefit analysis of implementing a UAV/drone technology within agricultural appraisals. This project is categorized into four categories; introduction, literature review, methodology, and conclusions. The methodology portion of the project is a capital budget analysis measuring the effectiveness of UAVs ...
openaire +3 more sources
Advanced Functional Materials, EarlyView.Guided by the golden ratio, a class of aperiodic architected metamaterials is introduced to address the intrinsic trade‐off between strength and toughness. By unifying local geometric heterogeneity with global order, the golden‐ratio‐guided aperiodic architecture promotes spatial delocalization of damage tolerence regions, leading to more tortuous ...
Junjie Deng +9 more
wiley +1 more source
Drones and the Fourth Amendment: Redefining Expectations of Privacy [PDF]
, 2015 Drones have gained notoriety as a weapon against foreign terrorist targets; yet, they have also recently made headlines as an instrument for domestic surveillance.
Koerner, Matthew R.
core +1 more source
Advanced Functional Materials, EarlyView.A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou +8 more
wiley +1 more source