Results 91 to 100 of about 229,882 (295)

Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection

open access: yesAdvanced Materials, EarlyView.
Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel   +7 more
wiley   +1 more source

From Columbus to Cooperation - Trade and Shipping Policies from 1492 to 1992 [PDF]

open access: yes, 1989
This Article summarizes the history of international trade agreements from the time of Columbus to the ...
Sweeney, Joseph C.
core   +2 more sources

Comparative Analysis of Improved YOLO v5 Models for Corrosion Detection in Coastal Environments

open access: yesJournal of Marine Science and Engineering
Coastal areas face severe corrosion issues, posing significant risks and economic losses to equipment, personnel, and the environment. YOLO v5, known for its speed, accuracy, and ease of deployment, has been employed for the rapid detection and ...
Qifeng Yu   +4 more
doaj   +1 more source

Integrating Vibrio natriegens for Photon Manipulation in Living Lighting Devices

open access: yesAdvanced Materials, EarlyView.
Rationalization of genetic and material engineering tools has enabled the engineering of fluorescent Vibrio natriegens (V. natriegens) to fabricate straightforward, highly emissive and stable V. natriegens‐silicones color filters for the first red‐emitting bacteria‐hybrid light‐emitting diodes. This pinpoints V. natriegens as a high‐performance protein
Stephanie Willeit   +6 more
wiley   +1 more source

Exploring the link between port throughput and economic activity : some comments on space- and time-related issues [PDF]

open access: yes, 2010
The link between economic activity and (freight) transport is a classic issue in regional science. A subtopic is the impact of economic activity on the demand for maritime transport through ports.
Vanoutrive, Thomas
core   +1 more source

Single‐Atom Photocatalyst as Floatable Artificial Leaf for Upcycling Oceanic Plastic Waste

open access: yesAdvanced Materials, EarlyView.
To resolve the catastrophic disaster of oceanic plastic pollution, the novel Ru single atom loaded ZnIn2S4 photocatalysts, in the forms of powder or floatable artificial leaf, were prepared for direct conversion of raw polypropylene plastic into valuable chemicals. The optimized catalyst exhibits exceptional performance, with a total formic/acetic acid
Amin Talebian‐Kiakalaieh   +6 more
wiley   +1 more source

Smart Technologies for Environmental Safety and Knowledge Enhancement in Intermodal Transport [PDF]

open access: yes
International concerns about security in transport systems are leading to a new international regulation in this field. This introduces new requirements for operators and authorities as well as it opens new challenges, in particular when referred to ...
Dino Borri   +3 more
core  

AI–Guided 4D Printing of Carnivorous Plants–Inspired Microneedles for Accelerated Wound Healing

open access: yesAdvanced Materials, EarlyView.
This work presents an artificial intelligence (AI)‐guided 4D‐printed microneedle platform inspired by carnivorous plants for wound healing. A thermo‐responsive shape memory polymer enables body temperature–triggered self‐coiling for autonomous wound closure.
Hyun Lee   +21 more
wiley   +1 more source

The price of modern maritime piracy [PDF]

open access: yes, 2011
A growing body of literature has recently focused on the economic origins and consequences of modern maritime piracy and on the perception that the international community has failed to control it.
Bensassi, Sami   +1 more
core  

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