Results 211 to 220 of about 480,099 (340)

Rotary 4D Printing of Programmable Metamaterials on Sustainable 4D Mandrel

open access: yesAdvanced Materials Technologies, EarlyView.
The paper introduces open, rotary 4D printing of programmable tubular metamaterials. It presents an open, non‐planar path‐to‐G‐code pipeline and shape‐changing rotary mandrel that enable support‐free fabrication and multi‐stimuli actuation. Experiments and FEA validate the mentioned features and stress redistribution.
Hesam Soleimanzadeh   +4 more
wiley   +1 more source

Exploring Double NDR Modulation and UV‐NIR Photodetection in MoS2/Sb2Se3 Heterostructures

open access: yesAdvanced Optical Materials, EarlyView.
In this study, a van der Waals Sb2Se3/MoS2 heterostructure exhibits dual negative differential resistance (NDR) peaks at room temperature. The first originates from band‐to‐band tunneling, while the second, triggered under laser illumination, is attributed to trap states and recombination dynamics.
Muhammad Suleman   +8 more
wiley   +1 more source

Illuminating Quantum Phenomena in 2D Materials: The Power of Optical Spectroscopy

open access: yesAdvanced Optical Materials, EarlyView.
Atomically thin 2D materials host quantum tunnelling, plasmonic and excitonic phenomena driven by reduced dimensionality and strong many‐body interactions. This review links these effects to state‐of‐the‐art optical probes—NSOM, pump–probe, CARS, TRR, and optical frequency comb spectroscopy—highlighting how their ultrahigh spatial–temporal resolution ...
Yuhui Zhou   +4 more
wiley   +1 more source

Epitaxial Self‐Assembled Vertically Aligned Nanocomposite Photoelectrodes with Tunable Ambipolar Response

open access: yesAdvanced Optical Materials, EarlyView.
Ambipolar photoelectrodes enable controlled switching between anodic and cathodic photocurrents in response to light and applied potential. This work demonstrates epitaxial self‐assembled vertically aligned NiTiO3–TiO2 nanocomposite thin films with tunable ambipolar behavior.
Ron Fishov   +3 more
wiley   +1 more source

Logic programming with requests

open access: yes, 1999
We propose an extension of logic programming where the user can specify, together with the initial query, the information he is interested in by means of a request. This allows one to extract a result from an incomplete computation, such as the prefix of an infinite derivation.
Etalle, Sandro, van Raamsdonk, Femke
openaire   +3 more sources

Synergistic Effect of Compositional Engineering and Graded Heterojunction Formation in Tin‐Halide Perovskites for Near‐Infrared Photodetectors

open access: yesAdvanced Optical Materials, EarlyView.
The compositional engineering of Sn‐halide perovskite with alkylammonium chloride, combined with graded heterojunction formation using fullerene, is shown to significantly enhance crystallinity and reduce trap densities. Consequently, the resulting photodetectors achieve a 63.4% external quantum efficiency and a specific detectivity of 1.38 × 1011 ...
Jongmin Lee   +10 more
wiley   +1 more source

Light Intensity‐Controlled Photoconductance Polarity Switching for Neuromorphic and Logic Applications

open access: yesAdvanced Optical Materials, EarlyView.
Light intensity‐induced photoconductance polarity switching is demonstrated in geometrically asymmetric Schottky MoSe2 devices. The devices exhibit bidirectional reconfigurable optoelectronic logic gates and synaptic applications using a single light source, opening new avenues for multifunctional optoelectronic and neuromorphic computing systems ...
Amin Abnavi   +4 more
wiley   +1 more source

Flexible Sensor‐Based Human–Machine Interfaces with AI Integration for Medical Robotics

open access: yesAdvanced Robotics Research, EarlyView.
This review explores how flexible sensing technology and artificial intelligence (AI) significantly enhance human–machine interfaces in medical robotics. It highlights key sensing mechanisms, AI‐driven advancements, and applications in prosthetics, exoskeletons, and surgical robotics.
Yuxiao Wang   +5 more
wiley   +1 more source

Energy Consumption Optimization in Trajectory Planning for Fuel Cell Hybrid Uavs Based On HMPC

open access: yesAdvanced Robotics Research, EarlyView.
The endurance limitation of multirotor drones is a critical challenge. This study adopts a hybrid power system of fuel cells and lithium‐ion batteries. Using Nondominated Sorting Genetic Algorithm II, it integrates trajectory planning with energy management optimization.
Xindi Wang   +7 more
wiley   +1 more source

Negation in Logic Programming [PDF]

open access: yes, 1991
Bry, François, Karagiannis, Dimitris
core  

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