Results 121 to 130 of about 570,217 (365)

Morphogenic Growth 3D Printing

Advanced Materials, EarlyView.
I additive manufacturing process exploits the spatial propagation of a polymerization reaction front to produce 3D polymer parts 10× faster and 1000× more energy efficient than the fastest stereolithography. In contrast with existing 3D printing, this morphogenic process is inspired by biological “growth and form” due to the self‐directed propagation ...
Yun Seong Kim, Minjiang Zhu, Mohammad Tanver Hossain, Derrick Sanders, Rohan Shah, Yuan Gao, Jeffrey S. Moore, Nancy R. Sottos, Randy H. Ewoldt, Philippe H. Geubelle, Sameh H. Tawfick   +10 more
wiley   +1 more source

Pushing Radiative Cooling Technology to Real Applications

Advanced Materials, EarlyView.
Radiative cooling controls surface optical properties for solar and thermal radiation, offering solutions for global warming and energy savings. Despite significant advances, key challenges remain: optimizing optical efficiency, maintaining aesthetics, preventing overcooling, enhancing durability, and enabling scalable production.
Chongjia Lin, Keqiao Li, Meng Li, Benjamin Dopphoopha, Jiongzhi Zheng, Jiazheng Wang, Shanshan Du, Yang Li, Baoling Huang   +8 more
wiley   +1 more source

Conductive Polymer Coatings Control Reaction Selectivity in All‐Iron Redox Flow Batteries

Advanced Materials, EarlyView.
Aqueous redox flow batteries are limited by the competing hydrogen evolution reaction (HER) at their negative electrodes. In this work, conductive polymers are conformally coated on porous carbonaceous electrodes to improve the reaction selectivity of hybrid all‐iron redox flow batteries.
Emre B. Boz, Ameya Bondre, Ronald de Bruijne, Antoni Forner‐Cuenca   +3 more
wiley   +1 more source

Convection in Rotating Spherical Fluid Shells [PDF]

in "Mathematical Aspects of Natural Dynamos", E. Dormy, A.M. Soward (eds.), Grenoble Sciences and CRC Press, Boca Raton, pp. 119-198, ISBN-13:978-1-58488-954-0, 2007, 2009
The chapter begins with a description of the annulus model of rotationg convection. The basic equations for the spherical problem are then introduced and the onset of columnar convection in spherical shells is discussed. The onset of inertial mode convection is described which prevails at very low Prandtl numbers.
arxiv  

Ultrafast Laser Synthesis of Zeolites

Advanced Materials, EarlyView.
The study presents a novel ultrafast laser‐driven synthesis technique for zeolites directly in liquid. Laser pulses create a microscopic reactor that controls reaction kinetics at femto‐ and picosecond timescales. Nonlinear light‐matter interactions drive nucleation and growth, allowing the process to be paused at any stage of self‐assembly.
Sezin Galioglu, Mehdi Hagverdiyev, Meryem M. Doğan, Özgün Yavuz, Ü. Seleme Nizam, Ghaith Makey, Aladin Şura, Mesut Laçin, Burcu Akata Kurç, Parviz Elahi, F. Ömer Ilday, Serim Ilday   +11 more
wiley   +1 more source

Thermal analysis of both ventilated and full disc brake rotors with frictional heat generation

Applied and Computational Mechanics, 2014
In automotive engineering, the safety aspect has been considered as a number one priority in development of a new vehicle. Each single system has been studied and developed in order to meet safety requirements. Instead of having air bags, good suspension
Belhocine A., Cho C.-D., Nouby M., Yi Y. B., Abu Bakar A. R.   +4 more
doaj  

Surface pattern determined by vertical convection on Rayleigh-Taylor instability [PDF]

arXiv, 2011
Relationship between a surface pattern and vertical convections is studied in a condition of Rayleigh-Taylor instability. The vertical convections change with the case configuration and the aspect ratio r / h of the case, where r and h show radius of case and height of the lighter solution.
arxiv  

Convection-Diffusion-Reaction equation with similarity solutions [PDF]

, 2018
We consider similarity solutions of the generalized convection-diffusion-reaction equation with both space- and time-dependent convection, diffusion and reaction terms. By introducing the similarity variable, the reaction-diffusion equation is reduced to an ordinary differential equation. Matching the resulting ordinary differential equation with known
arxiv   +1 more source

Numerical simulations of rotating sunspots [PDF]

, 2006
A numerical model of idealized, axisymmetric, rotating sunspots is presented. The model contains a compressible plasma described by the nonlinear MHD equations, with density and temperature gradients simulating the upper layer of the sun’s convection ...
Botha, Gert, Busse, F. H., Hurlburt, Neal, Rucklidge, Alistair   +3 more
core  

Double-diffusive convection in a rotating cylindrical annulus with conical caps

, 2011
Double-diffusive convection driven by both thermal and compositional buoyancy in a rotating cylindrical annulus with conical caps is considered with the aim to establish whether a small fraction of compositional buoyancy added to the thermal buoyancy (or
Simitev, R. D.
core   +3 more sources