Results 81 to 90 of about 429,258 (272)

Enhancement of Low Contrast Images Based on Effective Space Combined with Pixel Learning

open access: yesInformation, 2017
Images captured in bad conditions often suffer from low contrast. In this paper, we proposed a simple, but efficient linear restoration model to enhance the low contrast images.
Gengfei Li, Guiju Li, Guangliang Han
doaj   +1 more source

Long duration underwater glider dataset: Indian Ocean from Perth, Australia to Mirissa, Sri Lanka

open access: yesData in Brief, 2020
This data was collected using an underwater research vehicle, Slocum glider. The glider is an autonomous robot that is able to measure several water properties from surface to 1000 m depth. The duration of missions for underwater gliders are on the order
John Kerfoot, David Aragon
doaj   +1 more source

From Waste to Value: Conversion of Calcium Sulfate to Vaterite via Carbon Capture and Storage

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces a new concept for carbon management that relies on the carbonation of industrial gypsum waste and yields phase‐pure vaterite at ambient conditions without any additives. The obtained vaterite is further shown to be a reactive material that develops compressive strength in aqueous suspensions like conventional cements.
Carlos Pimentel   +4 more
wiley   +1 more source

Performance Analysis of Hybrid Optical–Acoustic AUV Swarms for Marine Monitoring

open access: yesFuture Internet, 2018
Autonomous Underwater Vehicles (AUVs) are assuming an important role in the monitoring and mapping of marine ecosystems, especially for their ability to explore harsh environments.
Chiara Lodovisi   +3 more
doaj   +1 more source

Anomalous Stiffening of a Conjugated Polymer During Electrochemical Oxidation

open access: yesAdvanced Functional Materials, EarlyView.
The electromechanical response of a thienothiophene‐based conjugated polymer with triethylene glycol side chains is investigated. Electrochemical nanoindentation and atomic force microscopy reveal a modest and reversible increase in elastic modulus at room temperature upon electrochemical oxidation.
Judith Pons i Tarrés   +17 more
wiley   +1 more source

Underwater radio power transmission based on electric field induction

open access: yesJournal of Hebei University of Science and Technology, 2018
In order to verify the feasibility of underwater power transmission and study the factors affecting the transmission efficiency, a simple wireless charging circuit is designed based on the principle of electric field coupling.
Zheng LI   +4 more
doaj   +1 more source

OCTOID: A Soft Robotic System Featuring Programmable Shape Morphing and Dynamic Structural Coloration

open access: yesAdvanced Functional Materials, EarlyView.
Inspired by octopuses, actuating legs based on soft materials are fabricated with programmed chiroptical properties and mechanical behaviors to achieve dynamic color modulation and reversible shape morphing, and these legs are developed into a modular OCTOID system.
Seung Hui Han   +8 more
wiley   +1 more source

Electro‐Active Polymer Actuated Microfiltration Membranes: Design, Performance, and Particle Dynamics

open access: yesAdvanced Functional Materials, EarlyView.
The concept of foulant particle manipulation and detachment from active microfiltration membranes via voltage‐driven vibrations is introduced. Actuator components are initially integrated onto the filtration membranes using an airbrush spray printing technique.
Irem Gurbuz, Hanieh Bazyar, Andres Hunt
wiley   +1 more source

Multimodal superposition modeling and acoustic field characteristics analysis of scattering sound field from spherical targets

open access: yesAIP Advances
In this paper, a multimodal superposition model of the scattered acoustic field from a spherical target is investigated and the distribution laws of the scattered acoustic field of different sizes of rigid and elastic spheres at different frequencies are
Ruoyun Xing   +4 more
doaj   +1 more source

Designing a Diving Protocol for Thermocline Identification Using Dive Computers in Marine Citizen Science

open access: yesApplied Sciences, 2018
Dive computers have an important potential for citizen science projects where recreational SCUBA divers can upload the depth temperature profile and the geolocation of the dive to a central database which may provide useful information about the ...
Salih Murat Egi   +5 more
doaj   +1 more source

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