Results 101 to 110 of about 5,965,749 (294)

Critical Coupling in Semi‐Trasparent Fano Resonators for Photothermal Converters

open access: yesAdvanced Functional Materials, EarlyView.
An ultrathin metal–insulator multilayer architecture is engineered to exploit Fano‐resonant critical coupling, completely suppressing optical reflectance while achieving a balanced 50:50 trade‐off between absorbance and transmittance. Upon laser excitation at resonance, the metamaterial generates intense localized heat (ΔT≈550∘C$\Delta T {\approx }550^\
Giuseppe Emanuele Lio   +3 more
wiley   +1 more source

Russo-Ukrainian War’s Impact on Space Security – The Western Perspective

open access: yesPoliteja
In this paper, the impact of the democratisation of space on space security is investigated using the example of the war in Ukraine, with particular attention to the transatlantic community’s security concerns.
Marek Czajkowski
doaj   +1 more source

APTES‐Mediated Ti‐Squarate MOF/n‐GaN Nanowire Photoanodes for Efficient Photoelectrochemical Water Splitting

open access: yesAdvanced Functional Materials, EarlyView.
The APTES linker establishes a permanent interfacial dipole, reducing the work function of n‐GaN from 3.55 to 3.29 eV. This strengthens the built‐in electric field, significantly accelerating hole extraction to drive the oxygen evolution reaction (OER). Ultimately, this tailored charge‐separation architecture achieves a remarkable 4.78‐fold enhancement
Jeong‐Kyun Oh   +15 more
wiley   +1 more source

Homeland Security Affairs Journal, Volume 14 / 2018 [PDF]

open access: yes, 2018
Homeland Security Affairs is the peer-reviewed online journal of the Naval Postgraduate School Center for Homeland Defense and Security (CHDS), providing a forum to propose and debate strategies, policies, and organizational arrangements to strengthen U ...

core   +1 more source

Programming Neuromorphic Plasticity Through Ionic and Electronic Coupling in Organic Electrochemical Transistors

open access: yesAdvanced Functional Materials, EarlyView.
Neuromorphic plasticity in OECTs is governed by the post‐stimulus evolution of coupled ionic and electronic states. Semiconductor chemistry and morphology, electrolyte composition and interfaces, and device architecture regulate ion injection, transport, confinement, and release, shifting responses from rapidly relaxing STP to metastable memory and ...
Inho Lee   +9 more
wiley   +1 more source

Space Security, Balance of Power, and Deterrence Theory

open access: yesAdvanced Space Law
The article examines the transformation of the deterrence concept amidst the development of outer space as a new strategic environment for confrontation. Based on Thomas Schelling’s game theory, the author analyzes the changing nature of global conflicts
Larysa Soroka, Anna Hurova
doaj   +1 more source

NeuroVisio SyncPatch: A Skin‐Conformal Multimodal EMG–Motion Sensing Platform for Quantitative Neuromuscular Rehabilitation and Performance Monitoring

open access: yesAdvanced Healthcare Materials, EarlyView.
NeuroVisio SyncPatch integrates skin‐conformal electromyography (EMG) electrodes with camera‐tracked markers to jointly assess muscle activity and three‐dimensional knee kinematics during rehabilitation. Parallel feedback pathways provide real‐time kinematic guidance during movement and post‐trial neuromuscular feedback.
Bohyung Choi   +11 more
wiley   +1 more source

Changing Homeland Security: What Should Homeland Security Leaders Be Talking About? [PDF]

open access: yes, 2006
This article appeared in Homeland Security Affairs (July 2006), v.2 no.2There is little political will to substantially alter the organizational and programmatic system that characterizes U.S. homeland security.
Bellavita, Christopher
core   +1 more source

The perils of periodising astropolitics: Space security and the system builders

open access: yesEuropean Journal of International Security
Space systems are becoming an ever more important part of international security capabilities and practices. However, problematic interpretations of the Space Age are taking root in practitioner and academic circles along the contours of three sequential
Bleddyn E. Bowen
doaj   +1 more source

Security at Vanderbilt; 2003/2004

open access: yes, 2003
The Vanderbilt University Annual Security Report is published each year to provide information on security-related services offered by the ...

core  

Home - About - Disclaimer - Privacy