Results 71 to 80 of about 38,263 (282)

Stepwise On‐Surface Synthesis and Transformations of Two‐Dimensional Covalent Organic Frameworks by Controlled Thermal Stimuli

open access: yesAdvanced Materials, EarlyView.
The seminal transformation of a 2D‐COF (SURFCOF‐IMDEA1) into a 2D porous COF (SURFCOF‐IMDEA2) on Au(111) by a sequential C‐C coupling and ladderization triggered by thermal annealing steps at increasing temperatures is reported. Abstract The development of covalent organic frameworks (COFs) is currently a primary objective in materials science, taking ...
Ana Barragán   +11 more
wiley   +1 more source

Quasi-Integer Ratio Time-Expanded ΦOTDR System for High Sampling Rate Dynamic Curvature Sensing [PDF]

open access: yes
Optical Sensors 2024, Toulouse, France, 15–19 July 2024.We present a curvature sensing scheme based on quasi-integer-ratio time-expanded phase-sensitive optical time domain reflectometry (QIR-TE-ΦOTDR) with 5cm resolution, 125m range and 1kHz sampling ...
Barrera Vilar, David   +6 more
core   +1 more source

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

open access: yesAdvanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje   +7 more
wiley   +1 more source

PNRR Mask

open access: yesDiségno
On 2 and 3 May 2025, the day of studies and public activities took place in Lipari, at the Archaeological Park of the Aeolian Islands and the Luigi Bernabò Brea Regional Archaeological Museum (fig. 1), as part of the project Restituzione alla teatralità
Sonia Mollica
doaj   +1 more source

Engineered Protein‐Based Ionic Conductors for Sustainable Energy Storage Applications

open access: yesAdvanced Materials, EarlyView.
Rational incorporation of charged residues into an engineered, self‐assembling protein scaffold yields solid‐state protein films with outstanding ionic conductivity. Salt‐doping further enhances conductivity, an effect amplified in the engineered variants. These properties enable the material integration into an efficient supercapacitor.
Juan David Cortés‐Ossa   +14 more
wiley   +1 more source

Virtual stress testing: Analyzing endocrine, metabolic, cardiovascular, and psychological responses to the TSST-VR

open access: yesNeurobiology of Stress
Background: The Trier Social Stress Test (TSST) is a widely used tool for inducing and measuring stress responses in a controlled environment. In this study, we aimed to explore the effectiveness of a virtual TSST (TSST-VR) in eliciting stress responses ...
Eva Fellinger   +6 more
doaj   +1 more source

Role of Liquid Composition in the Transient Liquid Assisted Growth of Superconducting YBa2Cu3O7‐δ Films

open access: yesAdvanced Materials, EarlyView.
The Y supersaturation in the [Ba‐Cu(I/II)‐O] transient liquid composition is the driving force toward YBCO nucleation and growth in TLAG. Tuning the initial (Ba:Cu) molar ratio in the ink composition determines the YBCO epitaxial nucleation through supersaturation control.
Lavinia Saltarelli   +12 more
wiley   +1 more source

Optimized Varactor Parasitic Modelling in the Millimeter-Wave Band. [PDF]

open access: yes, 2023
This work explores the utilization of varactors in the millimeter-wave (mm-wave) band, specifically focusing on their application in voltage-controlled reconfigurable devices.
Padilla, Pablo   +3 more
core  

Self‐Cooling Molecular Spin Qudits

open access: yesAdvanced Materials, EarlyView.
A material made of [GdEr] molecular dimers can encode a qudit and perform as a magnetic refrigerant. Microwave resonant pulses coherently manipulate its 16 spin states, while direct demagnetization measurements cool the material and a device down to temperatures below 1 K.
Elías Palacios   +12 more
wiley   +1 more source

From the Pandemic to the War: The EU Fiscal Response to Russia's Aggression of Ukraine, the Legacy of NGEU, and the Challenge to “Promote the General Welfare”

open access: yesAJIL Unbound
As the European Union (EU) was slowly re-emerging from the COVID-19 pandemic, it faced another unprecedented shock: Russia's large-scale military invasion of Ukraine.
Federico Fabbrini
doaj   +1 more source

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