Results 61 to 70 of about 3,097,280 (251)

Comparison of wave modeling methods in CFD solvers for ocean engineering applications

Ocean Engineering, 2019
Numerical wave tanks rely on specific models to generate realistic wave condition, propagate accurately the waves in the domain, and absorb the reflected waves at the boundaries.
Zhaobin Li, G. Deng, P. Queutey, B. Bouscasse, G. Ducrozet, L. Gentaz, D. Le Touzé, P. Ferrant   +7 more
semanticscholar   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Synergistic Hierarchical AI Framework for USV Navigation: Closing the Loop Between Swin-Transformer Perception, T-ASTAR Planning, and Energy-Aware TD3 Control

Sensors
Autonomous Unmanned Surface Vehicle (USV) operations in complex ocean engineering scenarios necessitate robust navigation, guidance, and control technologies.
Haonan Ye, Hongjun Tian, Qingyun Wu, Yihong Xue, Jiayu Xiao, Guijie Liu, Yang Xiong   +6 more
doaj   +1 more source

Study on the Legal Issues of Preventing and Controlling Pollution Damage to Marine Environment Caused by Ocean Engineering Construction Projects

Haiyang Kaifa yu guanli, 2023
In recent years, with the increasing prosperity of marine economy, marine engineering construction projects not only had promoted the development of marine economy, but also increased the possibility of harming the marine environment.
Meng SUN, Zhaobin PEI
doaj  

Benchmarking Coaxial and Angular Optical Emission Spectroscopy With Recommendations for Reliable Compositional In Situ Monitoring During Laser Powder Bed Fusion

Advanced Materials Technologies, EarlyView.
ABSTRACT Real‐time insight into local chemistry is critical for reliable part quality in additive manufacturing, especially laser powder bed fusion (PBF‑LB/M), where rapid thermal cycles and localized evaporation can undermine part performance. Optical emission spectroscopy (OES) offers non‑intrusive, in situ plume monitoring, but detection geometry ...
Philipp Gabriel, Bastian Jülich, Anna Rosa Ziefuss, Florian Eibl, Stephan Barcikowski   +4 more
wiley   +1 more source

Experimental study on powered diving technology for deep-sea vehicles based on vectored propulsion

Zhongguo Jianchuan Yanjiu
ObjectiveThis study investigates the motion characteristics of deep-sea vehicles during deep vertical transit under vectored propulsion.MethodFirst, the motion equations were established to obtain preliminary solutions for the parameters of helical ...
Zhe WU, Tingpeng DU, Qingxiang XU, Elong HE, Yunshi YANG   +4 more
doaj   +1 more source

Ship and Ocean Engineering Equipment in China: Current Status and Future Prospects [PDF]

中国工程科学
Ship and ocean engineering equipment is the foundation for ocean transportation, resource development, scientific research, rights protection, and other activities, which is crucial for boosting China's strength in manufacturing and marine development ...
Yousheng Wu, Yiyu Zhao, Hao Liu, Chuanrong Wang, Yanqing Li   +4 more
doaj   +1 more source

Tunable‐Threshold UV Dosimetry With Programmable Luminescent Tags via Oxygen‐Mediated Room‐Temperature Phosphorescence

Advanced Materials Technologies, EarlyView.
A fully organic UV threshold dosimeter is developed by exploiting the oxygen‐sensitive room‐temperature phosphorescence of a purely organic emitter in a polymer matrix. Upon reaching a specific cumulative UV dose, photochemical oxygen depletion triggers a sharp, high‐contrast emission.
Tim Achenbach, Paul‐Anton Will, Karl Sebastian Schellhammer, Sebastian Reineke   +3 more
wiley   +1 more source

Stress‐Normalized Sensitivity as a Comparative Benchmark for Intrinsically Piezoresistive Nanocomposite Materials in Wearable Electronics

Advanced Materials Technologies, EarlyView.
A stress‐normalised sensitivity metric (S = G/Y) is introduced as a materials‐level benchmark for intrinsically piezoresistive nanocomposites. By decoupling electromechanical response (G) from stiffness (Y), the framework enables direct comparison across diverse systems and clarifies design trade‐offs for wearable sensors.
Conor S. Boland
wiley   +1 more source

Nonlinear Perception Characteristics Analysis of Ocean White Noise Based on Deep Learning Algorithms

Mathematics
Caused by nonlinear vibration, ocean white noise exhibits complex dynamic characteristics and nonlinear perception characteristics. To explore the potential application of ocean white noise in engineering and health fields, novel methods based on deep ...
Tao Qian, Ying Li, Jun Chen
doaj   +1 more source