Results 71 to 80 of about 75,374 (303)

Microstructured Electrode‐Piezopolymer Interface for Ultrasound Transducers With Enhanced Flexibility and Acoustic Performance

Advanced Materials Technologies, EarlyView.
Flexible piezopolymer ultrasound transducers are engineered by tailoring the electrode–piezopolymer interface using metallic, flake‐based, and porous graphene electrodes. Laser‐induced graphene's porous structure enables polymer infiltration, strengthening interfacial coupling and enhancing piezoelectric response and acoustic output.
Spencer Hagen, Dulcce A. Valenzuela, Parag V. Chitnis, Shirin Movaghgharnezhad   +3 more
wiley   +1 more source

A high-efficiency dual-impact horizontal rotor wave energy converter: Design, analysis, and experimental tests

Applied Ocean Research
To tackle the challenge of low power generation efficiency of wave energy converters in short-period, low-wave-height sea conditions, this study innovatively proposes a dual-impact horizontal rotor wave energy converter (DHRWEC) system.
Zhongliang Meng, Yi Ding, Yanjun Liu, Wahyu Rahmaniar, Zijian Li, Ammar Ahmed   +5 more
doaj   +1 more source

UTact: Underwater Vision‐Based Tactile Sensor with Geometry Reconstruction and Contact Force Estimation

Advanced Robotics Research, EarlyView.
Embedded flexible sensing technologies advance underwater soft robotics, yet most systems still suffer from hysteresis and limited perceptiveness. Instead, vision‐based tactile sensors provide reliable and rapid feedback essential for complex underwater tasks.
Qiyi Zhang, Zonghao Zuo, Haoxuan Wang, Bin Liu, Yilidusi Yilihamu, Li Wen   +5 more
wiley   +1 more source

CFD simulation of wave-induced motions of an LNG ship considering tank sloshing effects

Brodogradnja
This study uses a CFD approach to perform numerical simulations of the hydrodynamic interactions between LNG ship motions induced by waves and the sloshing behavior of cargo tanks.
Guangyan Jia, Jialong Jiao, Chaohe Chen, Tiecheng Wu   +3 more
doaj   +1 more source

Steps Towards a Self Calibrating, Low Reflection Numerical Wave Maker Using Narx Neural Networks [PDF]

, 2017
Numerical wave-makers are important for accurate simulations of marine two-phase flows. One important aspect of the suitability is the ability to recreate a given surface elevation time trace at a given location in the tank ...
Schmitt, Pal
core  

Multimodal Layer‐Crossing Interrogation of Brain Circuits Enabled by Microfluidic Axialtrodes

Advanced Science, EarlyView.
The study introduces a flexible microfluidic axialtrode that integrates optical, electrical, and chemical modalities within a single polymer fiber. By redistributing electrodes and fluidic channels along the fiber axis via angled cleaving, it enables simultaneous optogenetic stimulation, electrophysiological recording, and drug delivery across brain ...
Kunyang Sui, Neela K. Codadu, Daman Rathore, Guanghui Li, Marcello Meneghetti, Anders L. Bøcker, Rune W. Berg, Rob C. Wykes, Christos Markos   +8 more
wiley   +1 more source

Evaluating RANS and LES turbulence models in hybrid wave modelling of breaking waves

Frontiers in Marine Science
Understanding the characteristics of breaking waves in deep and intermediate waters is crucial for air-sea interactions. Recent advancements in modelling these interactions have often relied on numerical wave tanks using Stokes waves, which may not fully
Chengzhao Zhang, Eugeny Buldakov
doaj   +1 more source

Internal wave pressure, velocity, and energy flux from density perturbations

, 2016
Determination of energy transport is crucial for understanding the energy budget and fluid circulation in density varying fluids such as the ocean and the atmosphere.
Allshouse, Michael R., Lee, Frank M., Morrison, Philip J., Swinney, Harry L.   +3 more
core   +1 more source

Experimental studies on seakeeping and maneuverability of ships in adverse weather conditions [PDF]

, 2017
The introduction of the energy efficiency design index (EEDI), which is applicable for various types of new-built ships after January 1,2013, raised concerns regarding the sufficiency of propulsion power and steering devices to maintain maneuverability ...
Cura-Hochbaum, Andrés, Delefortrie, Guillaume, Lengwinat, Antonio, Maron, Adolfo, Papanikolaou, Apostolos, Sprenger, Florian, Van Zwijnsvoorde, Thibaut   +6 more
core   +1 more source

Feline‐Inspired Robot Enabled by Combustion‐Driven Actuators for Agile Motion and High‐Payload Obstacle Traversal

Advanced Science, EarlyView.
Inspired by nature's competitive maneuvers, this study introduces a combustion‐driven soft actuator that powers a multi‐modal “Jump‐and‐Fly Catbot” (JFC). With millisecond response, high‐force output (over 70 times its weight) and precise control (error within 5%), the robot can jump, fly, hover, and escape from challenging environments, achieving ...
Hongkuan Ma, Yang Yang, Zhiguo He, Hongliang Ren, Pengcheng Jiao   +4 more
wiley   +1 more source