Results 121 to 130 of about 246,393 (287)

Inverse Design of Copolyamides via Sequence‐Sensitive Multifidelity Hybrid Models and Teacher–Student Genetic Algorithm

open access: yesMaterials Genome Engineering Advances, EarlyView.
A sequence‐sensitive multi‐fidelity hybrid modeling framework combined with a teacher‐student genetic algorithm enables the inverse design of copolyamides. The hybrid model balances prediction accuracy, sequence‑sensitivity, and computational cost. A two‑tier genetic algorithm can efficiently identify the monomer structures and ratios of copolyamides ...
Sheng Chen   +8 more
wiley   +1 more source

Bayesian modeling and characterization of underwater explosion shock wave loads with parameter uncertainty

open access: yesBaozha yu Chongji
The shock wave load generated by underwater explosions exhibits significant variability and uncertainty. To address the prediction bias caused by classical deterministic empirical models that ignore this uncertainty, an uncertainty analysis of both model
Zhi LI   +3 more
doaj   +1 more source

Explosion near two carriers (photograph)

open access: yes, 1940
Explosion near two ...

core  

Machine Learning for Thermodynamic States of Notional Nonideal Energetic Mixtures

open access: yesPropellants, Explosives, Pyrotechnics, EarlyView.
. ABSTRACT Currently, modeling the thermodynamic states in the reaction zone of a detonating energetic mixture entails iteratively solving a set of coupled differential equations that require detailed material property information or models whose empirical parameters must be physically measured.
Sangeeth Balakrishnan   +7 more
wiley   +1 more source

Deep Reinforcement Learning‐Based Control for Real‐Time Hybrid Simulation of Civil Structures

open access: yesInternational Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Real‐time Hybrid Simulation (RTHS) is a cyber‐physical technique that studies the dynamic behavior of a system by combining physical and numerical components that are coupled through a boundary condition enforcer. In structural engineering, the numerical components are subjected to environmental loads that become dynamic displacements of the ...
Andrés Felipe Niño   +6 more
wiley   +1 more source

Shockwave Monitoring and Analysis of Underwater Explosion at Xiamen Harbor

open access: yes, 2007
水下爆破中所产生的冲击波等强噪声对海洋生态环境具有重大的影响.本文构建了一套实时的水下爆破冲击波声学监测系统,对厦门港现代码头的水下爆夯进行了现场实时监测.采用PULSE声学振动分析软件及MATLAB数据分析软件对水下爆破中的冲击波进行了时-频分析;对同次爆破在不同距离上所测的水下爆夯冲击波强度进行了比较,初步得到厦门港水下爆破中冲击波强度随距离的变化关系.The paper focuses on designing a real time underwater explosion shockwave ...
苏欣, 许肖梅
core  

Linear System Identification and Control of a Low‐Cost High‐Performance Omnidirectional Marine Surface Vehicle for Swarming Applications

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT Marine operations traditionally rely on human intervention, a costly and disruptive method. Autonomous surface vehicles (ASVs) offer a powerful alternative, capable of operating autonomously, for extended periods, and with various sensors for various missions.
Ayman El Qemmah   +4 more
wiley   +1 more source

Embedded very-low-frequency underwater acoustic acquisition technology and experimental study for underwater explosion monitoring

open access: yesFrontiers in Sensors
Very-low-frequency (VLF) underwater acoustic monitoring is a primary means for monitoring specialized underwater explosions. In view of the limited availability of dedicated off-the-shelf VLF underwater acoustic monitoring equipment and related ...
Xuexu Li   +8 more
doaj   +1 more source

Mitigation of underwater explosion effects by bubble curtains : experiments and modelling [PDF]

open access: yes, 2014
Mine fields and UneXploded Ordnances (UXO) become a danger regarding maritime activities. Since UXOs are strongly affected by marine corrosion after decades, they cannot be handled safely.
Grandjean, H.   +11 more
core  

Environmental Stressors Influence Spatial Complexity in a Fluvial Macrophyte meadow

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
This research investigates the nonlinear relationships between environmental stressors and the fine‐scale spatial complexity of a fluvial macrophytes meadow. The use of multivariate spatial analysis allowed us to identify two major environmental gradients (nutrients and light) and two major complexity gradients (related to abundance and fragmentation).
Arthur de Grandpré   +2 more
wiley   +1 more source

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