Results 141 to 150 of about 1,249,371 (342)

Innovative Photon‐Engineered Fluorescent Tri‐Layer Polymeric Coatings for Sub‐Ambient Colored Radiative Cooling

open access: yesAdvanced Science, EarlyView.
This work provides a photoluminescence‐enhanced coating material solution for enhancing solar reflectance and coloration, systematically investigating the fluorescence’s role on the optical performance. All colored coatings exhibit excellent sub‐ambient cooling capacity (historically high solar reflectance and over 0.96 infrared emittance), while ...
Tao Wang   +7 more
wiley   +1 more source

A Modern Roman‐Inspired Concrete with Daytime Radiative Cooling Capacity

open access: yesAdvanced Science, EarlyView.
Coolcrete, inspired by ancient Roman concrete, is a new cementitious material with photonic properties enabling passive daytime radiative cooling. Made from quicklime and zeolites, it reduces cooling energy demand, lowers CO2 emissions, and may eliminate urban heat islands.
Jorge S. Dolado   +11 more
wiley   +1 more source

Vacancy Engineered Zero‐Valent Iron Steer Hydrogen Spillover toward Per‐ and Polychlorinated Organics Rapid Complete Dechlorination

open access: yesAdvanced Science, EarlyView.
Zero‐valent iron with a vacancy‐rich carbon shell and lattice Cu doping in Fe0 cores generates a dechlorination mechanism combining enhanced electron transfer and modulated H* spillover, which significantly lowers the energy barrier for dechlorinating low‐chlorinated intermediates, accelerates C─Cl bond dissociation, and then delivers breakthrough ...
Zimin Yan   +7 more
wiley   +1 more source

Probabilistic approaches in civil engineering: generation of random fields and structural identification with genetic algorithms

open access: yes, 2008
The inherent stochastic character of most of the physical quantities involved in engineering models has led to an always increasing interest for probabilistic analysis. Many approaches to stochastic analysis have been proposed. However, it is widely acknowledged that the only universal method available to solve accurately any kind of stochastic ...
openaire   +2 more sources

Highly Efficient Discovery of 3D Mechanical Metamaterials via Monte Carlo Tree Search

open access: yesAdvanced Science, EarlyView.
Machine learning (ML), as a data‐driven method, has revolutionized metamaterial design, surpassing traditional intuition‐driven trial‐and‐error methods in both efficiency and performance. Here, MCTS‐AL, an active learning framework integrating finite element simulation (FEM), convolutional neural networks (CNNs), and Monte Carlo Tree Search (MCTS ...
Jiamu Liu   +4 more
wiley   +1 more source

Coupling of Engineered High Entropy Alloys with Semiconducting TiO2 Nanofilms for Scalable and Ultrafast Alkaline Hydrogen Evolution Reaction

open access: yesAdvanced Science, EarlyView.
A facile and scalable strategy is presented to fabricate high‐performance hybrid photoelectrocatalysts combining PtFeCoNiCu HEA and TiO2–NFs via sequential anodization and electrodeposition, achieving an ultralow overpotential of –11 mV at η10 and excellent thermal stability. Abstract High entropy alloys (HEAs) are a promising class of electrocatalysts
Zichu Zhao   +7 more
wiley   +1 more source

Structural Cement‐Based Supercapacitors with Multifunctional Robustness for Energy Storage

open access: yesAdvanced Science, EarlyView.
The breakthrough carbon cement supercapacitor features exceptional electrochemical performance and excellent robustness. The porous carbon cement electrode, characterized by high strength, extremely low resistance, is prepared by thermomechanical consolidation at 90 °C. Through in situ polymerization around sodium dodecyl sulfate‐mediated carbon black (
Qingyang Liu   +10 more
wiley   +1 more source

Improved Direct Ink Writing of Liquid Metal Foams via Liquid Additives

open access: yesAdvanced Electronic Materials, EarlyView.
The ability to pattern liquid metal is useful for making soft electrical and thermal devices. Dispensing liquid metal from a nozzle naturally results in the formation of spheroidal droplets, making direct‐write printing challenging. Liquid metal foams containing pockets of air can extrude as filaments, albeit inconsistently.
Febby Krisnadi   +3 more
wiley   +1 more source

King and Cochrane: The technological treadmill and racial inequity in US agriculture

open access: yesApplied Economic Perspectives and Policy, EarlyView.
Abstract Between 1920 and 1969, the number of Black farmers in the US decreased from 14% of all operators to 4%. Using Martin Luther King Jr.'s critique of agricultural policy and Willard Cochrane's theory of the technological treadmill, we explore how racial discrimination was linked to policies that led to structural change in US agriculture.
Jared Hutchins, Jacopo De Marinis
wiley   +1 more source

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