Results 91 to 100 of about 52,070 (265)

Development of a methodology for collaborative control within a WEC array

International Marine Energy Journal, 2018
It has been established that Wave Energy Converters efficiency can be improved by control. One of the main challenges of reactive control is the non-causality of the optimal controller.
P.-E. Meunier, A. H. Clément, J.-C. Gilloteaux, K. Sofien   +3 more
doaj   +1 more source

The damped wave equation in a noncylindrical domain

Differential and Integral Equations, 1994
The authors prove some regularity results for the solution of the damped wave equation in a noncylindrical domain. More precisely, for the solution of the problem \[ {\partial^ 2u \over \partial t^ 2} = \Delta \left( u + \rho {\partial u \over \partial t} \right) + f \quad \text{in } Q, \] \[ u + \rho {\partial u \over \partial t} = 0 \quad \text{on ...
Da Prato, Giuseppe, Grisvard, Pierre
openaire   +3 more sources

Load Distributing Metamaterials Via Discrete Optimization

Advanced Functional Materials, EarlyView.
Mechanical metamaterials are computationally optimized to homogenize transmitted forces by minimizing the spread of reaction forces. The resulting architectures transform localized loading into broader, more uniform force distributions and experimentally demonstrate robust load spreading under quasi‐static and impact loading.
Andrea Detry, Hannes Holey, Raja Zulkarnain, Roberto Guerra, Ilaria Papa, Michael Zaiser, Stefano Zapperi   +6 more
wiley   +1 more source

Modal Analysis of Light Propagation, Polarization and Diffraction by Cholesteric Liquid Crystal Layers

Advanced Functional Materials, EarlyView.
The analysis of optical eigenmodes in chiral liquid crystal with perpendicular or tilted helical axis, and their correspondence with the external medium, leads to an intuitive understanding of the angle and wavelength dependency of transmissive and reflective diffraction.
Ke Xu, Pouya Nosratkhah, Le Zhou, Shengzhu Yi, Giorgio Manzoni, Kristiaan Neyts   +5 more
wiley   +1 more source

Multiphysics simulations of a cylindrical waveguide optical switch using phase change materials on silicon

Scientific Reports
This work presents the design and multiphysics simulation of a cylindrical waveguide-based optical switch using germanium-antimony-tellurium (GST) as an active phase change material.
Alireza Malek Mohammad, Mahmoud Nikoufard, Senour Abdolghaderi   +2 more
doaj   +1 more source

Existence of solution to parabolic equations with mixed boundary condition on non-cylindrical domains

Journal of Differential Equations, 2018
17 ...
Tujin Kim, Daomin Cao
openaire   +2 more sources

An Integrated Oxygen‐Supplying Device and Predictive Multiphysics Model for Extended Ambient Transport of Insulin‐Producing Cells

Advanced Functional Materials, EarlyView.
Cell therapies typically rely on cold‐chain logistics and cryopreservation, limiting access and compromising cell quality. Here, a dual‐chamber device separates an oxygen‐supplying chamber from a hyaluronic acid cargo chamber, sustaining oxygen delivery for over 70 h and enabling ambient‐temperature shipment.
Daniel A. Domingo‐Lopez, Ruth Tarpey, Benjamin Brennan, Bryan D. Boyle, Amir M. Alsharabasy, Abhik Mallick, Gabriella Bellavia, Abhay Pandit, Garry P. Duffy, Ruth E. Levey   +9 more
wiley   +1 more source

Research on Non-contact Vibration Measurement Technology for Special Machinery Based on Orthogonal Grating Sampling Moiré

Yuanzineng kexue jishu
Rotating machinery is widely used in critical fields such as aerospace, nuclear engineering, and power energy, where its vibration characteristics directly impact its service safety and stability.
LIU Yang1, 2, CHEN Ru1, ZHANG Zhanfei1, ZHANG Chenghao1, XIE Huimin1, , JIANG Lei2,
doaj   +1 more source

Embedded Direct Ink Writing of Thermoset and Elastomeric Polymers via Frontal Polymerization

Advanced Functional Materials, EarlyView.
Embedded frontal polymerization direct ink writing (FP‐DIW) combines frontal ring‐opening metathesis polymerization with embedded 3D printing to decouple deposition from curing. A yield‐stress support bath stabilizes low‐viscosity inks, while on‐demand thermal initiation enables controlled front propagation. This approach expands the accessible feature
Mohammad Tanver Hossain, Yun Seong Kim, Pallab Layak, Pranav Krishnan, Young bum Lee, Minjiang Zhu, Shubh Singh, Philippe H. Geubelle, Paul V. Braun, Jeffery W. Baur, Nancy R. Sottos, Sameh H. Tawfick, Randy H. Ewoldt   +12 more
wiley   +1 more source

Multi-Objective Optimization Design of Cylindrical FPSO Mooring System Based on KAN Surrogate Model and NSGA-III Algorithm

Journal of Marine Science and Engineering
Cylindrical floating production storage and offloading (FPSO) units are advancing into deeper waters. Overcoming the severe challenges posed by complex deepwater environments requires the design of mooring systems that balance economic efficiency and ...
Wenhua Li, Mingshuai Yu, Huoping Wang, Haoran Ye, Liuzhong Cao, Shanying Lin   +5 more
doaj   +1 more source