Results 21 to 30 of about 2,016,611 (265)

Solar‐Driven Soft Robots

open access: yesAdvanced Science, 2021
Stimuli‐responsive materials have been lately employed in soft robotics enabling new classes of robots that can emulate biological systems. The untethered operation of soft materials with high power light, magnetic field, and electric field has been ...
Seyed M. Mirvakili   +3 more
doaj   +1 more source

On the Inherent Instability of Biocognition: Toward New Probability Models and Statistical Tools

open access: yesEntropy, 2022
A central conundrum enshrouds biocognition: almost all such phenomena are inherently unstable and must be constantly controlled by external regulatory machinery to ensure proper function, in much the same sense that blood pressure and the ‘stream of ...
Rodrick Wallace   +2 more
doaj   +1 more source

Finite Element Simulation of Thermo-Mechanical Model with Phase Change

open access: yesComputation, 2021
In this work, we consider a mathematical model and finite element implementation of heat transfer and mechanics of soils with phase change. We present the construction of the simplified mathematical model based on the definition of water and ice fraction
Maria Vasilyeva   +2 more
doaj   +1 more source

Study of phase and physical property changes during gas lift injection of high CO2‐content associated gas in the offshore M oil field

open access: yesEnergy Science & Engineering, 2023
The gas lift in the offshore M field will be performed with high CO2‐content associated gas, but the change of wellbore temperature and pressure during the injection process will lead to the change of phase and physical parameters of associated gas ...
Huan Chen   +7 more
doaj   +1 more source

Finite Element Method for Freezing and Thawing Industrial Food Processes

open access: yesFoods, 2021
Freezing is a well-established preservation method used to maintain the freshness of perishable food products during storage, transportation and retail distribution; however, food freezing is a complex process involving simultaneous heat and mass ...
Tobi Fadiji   +4 more
doaj   +1 more source

Mathematical Modeling and Analysis Using Nondimensionalization Technique of the Solidification of a Splat of Variable Section

open access: yesMathematics, 2023
In this work, the solidification and cooling process of an irregularly shaped splat is modeled using the network simulation method. The procedure for its implementation, which uses the finite difference method and optimized circuit analysis algorithms ...
Juan Francisco Sánchez-Pérez   +3 more
doaj   +1 more source

The Effect of a Phase Change on the Temperature Evolution during the Deposition Stage in Fused Filament Fabrication

open access: yesComputers, 2021
Additive Manufacturing Techniques such as Fused Filament Fabrication (FFF) produce 3D parts with complex geometries directly from a computer model without the need of using molds and tools, by gradually depositing material(s), usually in layers.
Sidonie F. Costa   +2 more
doaj   +1 more source

Phase change materials and phase change memory

open access: yesMRS Bulletin, 2014
Abstract
Simone Raoux   +3 more
openaire   +3 more sources

Research on the thermal performance of the condenser in a loop heat pipe anti-icing system

open access: yesFrontiers in Energy Research, 2023
Loop Heat Pipes (LHPs) are efficient heat transfer devices, providing a highly efficient and energy-saving thermal control integrated management method for Unmanned Aerial Vehicles (UAVs) with their flexible structural design. In this paper, a conceptual
Yuanyuan Zhao   +3 more
doaj   +1 more source

Colorimetric Plasmonic Hydrogen Gas Sensor Based on One-Dimensional Nano-Gratings

open access: yesCrystals, 2023
Plasmonic hydrogen gas sensors have become widely used in recent years due to their low cost, reliability, safety, and measurement accuracy. In this paper, we designed, optimized, and fabricated a palladium (Pd)-coated nano-grating-based plasmonic ...
Majid Zarei   +2 more
doaj   +1 more source

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