Results 91 to 100 of about 56,783 (308)
Control of convection by dfferent buoyancy forces
, 2011 This paper was presented at the 3rd Micro and Nano Flows Conference (MNF2011), which was held at the Makedonia Palace Hotel, Thessaloniki in Greece.
Futterer, B +3 more
core
Passive solar energy : modifications of existing masonry walls to improve thermal performance. [PDF]
, 1986 Existing brick walls usually have a high U value, one method of improvement is by insulation, but if the wall faces approximately south, it is possible that greater benefits could be obtained by improving the wall's performance as a solar collector ...
Boyle, P.M., Boyle, P.M
core
Miniature Soft Robot With Magnetically Reprogrammable Surgical Functions
Advanced Materials, EarlyView.Miniature soft robots have great prospects to revolutionize minimally invasive treatments. Here we present a miniature soft robot, which can be reprogrammed to perform five surgical functionalities with six‐degrees‐of‐freedom motions. This soft robot can prospectively make minimally invasive surgery considerably safer and painless, and enable ...
Chelsea Shan Xian Ng +4 more
wiley +1 more source
Simulation of nonlinear convective thixotropic liquid with Cattaneo-Christov heat flux
Results in Physics, 2018 In this communication we utilized a modified Fourier approach featuring thermal relaxation effect in nonlinear convective flow by a vertical exponentially stretchable surface. Temperature-dependent thermal conductivity describes the heat transfer process.
M. Zubair +4 more
doaj +1 more source
Advanced Materials, EarlyView.Elephant‐skin‐inspired crack networks are programmed in porous diatomaceous earth (DE)‐cement composites using substrate‐guided, stress‐concentration induced fracture. The resulting crack lattices act as capillary conduits that redistribute water, while the porous matrix stores moisture.
Qingya Huang +5 more
wiley +1 more source
Intermittent Thermal Convection in Jammed Emulsions
Physical Review LettersWe study the process of thermal convection in jammed emulsions with a yield-stress rheology. We find that heat transfer occurs via an intermittent mechanism, whereby intense short-lived convective "heat bursts" are spaced out by long-lasting conductive periods. This behaviour is the result of a sequence of fluidization-rigidity transitions, rooted in a
Francesca Pelusi +4 more
openaire +6 more sources
A numerical investigation of heat transfer in phase change materials (PCMs) embedded in porous metals [PDF]
, 2011 The effects of metal foams on heat transfer enhancement in Phase Change Materials (PCMs) are investigated. The numerical investigation is based on the two-equation non-equilibrium heat transfer model, in which the coupled heat conduction and natural ...
Zhao, Changying +5 more
core +1 more source
Advanced Materials, EarlyView.This review summarizes the principles and challenges of nonaqueous lithium‐oxygen batteries and recent advances in cathode catalysts, including carbon‐based materials, metals, oxides, sulfides, nitrides, carbides, and redox mediators. It highlights emerging design strategies and artificial intelligence‐driven approaches, emphasizing data‐assisted ...
Yuqing Yao +8 more
wiley +1 more source
Thermal simulation of a flat-plate solar collector based on heat transfer coefficients
Frontiers in Thermal EngineeringRenewable energy plays a crucial role in mitigating environmental impact and reducing dependence on fossil fuels. Solar thermal energy offers a clean and sustainable alternative.
Ángel Alfonso García López +6 more
doaj +1 more source
The influence of the thermal diffusivity of the lower boundary on eddy motion in convection
, 2003 The paper presents new concepts and results for the eddy structure of turbulent convection in a horizontal fluid layer of depth h which lies above a solid base with thickness hb. The fluid parameters are the kinematic viscosity ν, the thermal diffusivity
Nieuwstadt, FTM +3 more
core