Results 101 to 110 of about 1,419,434 (280)

Desert Plant Inspired Hierarchical Nanofibrous Membranes for Integrated Solar Desalination and Heavy Metal Remediation

open access: yesAdvanced Functional Materials, EarlyView.
An Alhagi maurorum inspired hierarchical composite membrane (NFCu) was developed by integrating heavy metal remediation and solar‐driven interfacial evaporation in a single platform. Beyond the photothermal effect, a localized photocatalytic process is realized on the CuO surface, deepening the mechanistic understanding of light–matter–water ...
Yuqiong He   +9 more
wiley   +1 more source

Rethinking Future Conflicts

open access: yesPoliteja
This article examines the concept of the ‘grey zone’ in international conflict, with a particular focus on its application in cyberspace. The grey zone refers to non-conventional strategies employed by states to achieve strategic objectives without ...
Dominika Dziwisz
doaj   +1 more source

Forward‐Biased Perovskite Photodiodes for In‐Sensor Optical Change Sensing

open access: yesAdvanced Functional Materials, EarlyView.
A forward‐biased perovskite photodiode is introduced as an in‐sensor analog preprocessing unit that uses current balancing between photocurrent and injection current to generate optical changes relative to programmable optical reference levels. The device directly converts reference‐relative optical changes into bipolar current signals, enabling sensor‐
Eungseon Yeon   +14 more
wiley   +1 more source

US-China Rivalry: Constructing Virtual Borders in Cyberspace Through War of Narratives [PDF]

open access: yesRevista UNISCI
Cyberspace has redefined national borders, prompting a rethink of traditional concepts of territoriality. In this digital realm, nations can leverage technological advancements to expand their influence beyond physical borders.
Dibakar De   +2 more
doaj  

Sub‐1 ms Optoelectronic Synapse Based on {ZnCdO/ZnO} Multilayer Structure for High‐Speed Neuromorphic Vision Systems

open access: yesAdvanced Functional Materials, EarlyView.
Eu‐doped {ZnCdO/ZnO} structures grown on Si are developed, showcasing dual‐functionality controlled by europium doping. While high europium concentration transforms the device into an ultrafast, self‐powered photodetector, low‐doped structures can be used as an optoelectronic synapse.
Igor Perlikowski   +3 more
wiley   +1 more source

(Book Review) On Cyber: Towards an Operational Art for Cyber Conflict by Gregory Conti and David Raymond

open access: yesThe Cyber Defense Review, 2018
The core of Conti and Raymond’s On Cyber: Towards an Operational Art for Cyber Conflict is found in the preface under the self-explanatory title, “Why this book?” and embedded in the following sentence: “The lack of an operational art for cyberspace ...
Jan Kallberg
doaj   +1 more source

Hybrid Ferroelectric Tunnel Junctions with Intrinsic Nonlinearity and Self‐Rectification via Interfacial Reconstruction

open access: yesAdvanced Functional Materials, EarlyView.
Rapid thermal annealing reconstructs the BCFO/Nb:STO interface into an atomically thin reconstructed interfacial layer, which reshapes the tunneling barrier and converts a high‐TER ferroelectric tunnel junction into an intrinsically nonlinear, self‐rectifying device.
Hojin Lee   +21 more
wiley   +1 more source

Amphoteric Cu‐Doping Leading to High Thermoelectric Performance in p‐Type Bismuth Antimony Telluride

open access: yesAdvanced Functional Materials, EarlyView.
This study shows that Cu plays two opposite roles in p‐type Bi0.5Sb1.5Te3 depending on the processing route. Under thermodynamic‐equilibrium bulk‐synthesis, Cu mainly occupies cation sites, increases hole concentration, preserves mobility, and slightly reduces lattice heat transport. The best‐performing composition among the investigated series reaches
Moritz Thiem   +15 more
wiley   +1 more source

The Friction Points, Operational Goals, and Research Opportunities of Electronic Warfare and Cyber Convergence

open access: yesThe Cyber Defense Review, 2019
With Electronic Warfare joining the Cyber Branch in October 2018, numerous opportunities and challenges that affect warfighters are surfacing. To capture and consolidate some of these observations, the Electronic Warfare Cyber Convergence (EWC2) workshop,
Jacob Cox   +6 more
doaj   +1 more source

Lewis Acid Site Engineering in MOF‐Derived Aluminum Oxide/Carbon Composites for Dechlorination of Waste Plastic Pyrolysis Oil

open access: yesAdvanced Functional Materials, EarlyView.
Controlled carbonization of an Al‐MOF partially decomposes its linkers, exposing coordinatively unsaturated Al centers within an oxide/carbon composite. The resulting Lewis acid sites, rather than surface area, govern organochlorine capture: the composite removes chemically diverse organochlorines from waste plastic pyrolysis oil, outperforms a ...
Seong Cheon Kim   +6 more
wiley   +1 more source

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