Results 81 to 90 of about 21,317 (267)

Embedded Ferroelectric Nanoclusters Can Drive Polarization Reversal in a Non‐Ferroelectric Polar Film via the Proximity Effect

open access: yesAdvanced Functional Materials, EarlyView.
Ferroelectric nanoclusters create local internal fields in a normally non‐switchable polar film because of polarization mismatch at their interfaces. That field opposes polarization in the regions with larger polarization and reinforces polarization in the regions with smaller polarization.
Anna N. Morozovska   +5 more
wiley   +1 more source

Ground Control System Based Routing for Reliable and Efficient Multi-Drone Control System

open access: yesApplied Sciences, 2018
Various unmanned aerial vehicles (UAVs), also called drones, have developed based on advances in hardware and software technologies. Thus, service providers in diverse areas have tried to utilize drones to create more effective solutions.
Woonghee Lee   +6 more
doaj   +1 more source

From Geometry to Function: Programmable Mechanical Response in 3D‐Printed Adipose‐Inspired Soft Metamaterials

open access: yesAdvanced Functional Materials, EarlyView.
Geometry‐driven design of soft cellular metamaterials is systematically investigated by combining experiments, finite element modeling, and statistical prediction. The study quantifies how unit cell geometry and material properties govern stiffness, instability, densification, and energy absorption.
Alice Berardo   +4 more
wiley   +1 more source

Enhanced Tantalum Superconducting Resonator Performance via All‐Surface Organic Monolayer Passivation

open access: yesAdvanced Functional Materials, EarlyView.
The internal quality factor of tantalum superconducting resonators is significantly increased by ∼140% in the low photon regime by passivating their surfaces with a high‐quality alkene self‐assembled monolayer. Our methodology promises to enhance the performance of superconducting quantum circuits.
Harsh Gupta   +6 more
wiley   +1 more source

On Drone Technology

open access: yesINCAS BULLETIN
Unmanned aerial vehicles (UAVs) or unmanned aircraft systems (UAS) are other names for drones, which are aircraft that do not have a pilot on board. A human operator can control it remotely, or it can fly itself using pre-programmed flight plans that use sensors and computers on board.
openaire   +1 more source

Semiconducting Polymers Post‐Functionalized With Ureido‐Pyrimidinone for Robust Stretchable Transistors

open access: yesAdvanced Functional Materials, EarlyView.
The design of intrinsically robust stretchable semiconducting polymers was achieved through OTBS‐mediated post‐functionalization of PDPP2T side chains with UPy units, generating dual hydrogen‐bonding motifs comprising weaker urethane linkages and strong quadruple UPy interactions along the long alkyl side chain, which is crucial for achieving desirable
Dinda Bazliah   +7 more
wiley   +1 more source

DRONES VERSUS SECURITY OR DRONES FOR SECURITY? [PDF]

open access: yesAnnals: Series on Military Sciences, 2016
Drones represent the most controversial subject when it comes to the dimension of national security. This technological development has implications politically as well as when it comes to practices pertaining to the field of national defense.
Anton MANDA
doaj  

The Orienteering Problem with Drones

open access: yesTransportation Science
We extend the classical problem setting of the orienteering problem (OP) to incorporate multiple drones that cooperate with a truck to visit a subset of the input nodes. We call this problem the OP with multiple drones (OP-mD). Drones have a limited battery endurance, and thus, they can either move together with the truck at no energy cost for the ...
Nicola Morandi, Roel Leus, Hande Yaman
openaire   +2 more sources

Nanoscale Spatial Tuning of Superconductivity in Cuprate Thin Films via Direct Laser Writing

open access: yesAdvanced Functional Materials, EarlyView.
Maskless direct laser writing enables local control of oxygen stoichiometry in epitaxial YBCO thin films under ambient conditions. Sub‐micrometer grayscale patterns with tunable optical response and superconducting transport properties are achieved.
Irene Biancardi   +11 more
wiley   +1 more source

DroneSilient (drone + resilient): an anti-drone system

open access: yesJournal of Big Data
AbstractIt is imperative to take a holistic strategy to thwarting drone threats, including the identification of drones and drone-like gadgets like ornithopters that visually imitate birds. In this study, we present the DroneSilient System, a novel anti-drone system that combines different parts. The DroneSilient system includes components that connect
Meghna Manoj Nair   +3 more
openaire   +2 more sources

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