Results 171 to 180 of about 135,615 (350)

The nonlinear fast diffusion equation on smooth metric measure spaces: Hamilton-Souplet-Zhang estimates and a Ricci-Perelman super flow. [PDF]

Calc Var Partial Differ Equ
Taheri A, Vahidifar V.
europepmc   +1 more source

Investigating the Role of Geometry in Solar Water Heating: A Case Study of Cylindrical and Frustum Buckets

Energy Science &Engineering, EarlyView.
ABSTRACT This study studies the effect of bucket shape and geometry on the performance of solar water heating systems. Three plexiglass (PMMA) buckets were chosen: cylindrical, frustum, and inverted frustum. Each bucket has a capacity of 13 L and 3 mm wall thickness.
Pankaj Dumka, Nitesh Pandey, Dhananjay R. Mishra, Farruh Atamurotov, Ahmed Mohsin Alsayah, Nima Khalilpoor   +5 more
wiley   +1 more source

Variational approach to multimode nonlinear optical fibers. [PDF]

Nanophotonics
Lorenzi F, Salasnich L.
europepmc   +1 more source

GPU-based methods for exploring parabolic partial differential equations [PDF]

, 2011
David H. Eberly, Jerrold Bebernes
openalex   +1 more source

Numerical Study on the Effect of Structural Variation of S‐Shaped Flow Channel Absorber on the Thermal Performance of Line‐Focusing Fresnel Lens Solar Collector

Energy Science &Engineering, EarlyView.
ABSTRACT As a clean and renewable energy source, solar energy development and utilization have garnered significant attention. This study investigates the potential of Fresnel lenses to enhance the thermal efficiency of solar collectors by analyzing the effects of water flow channel structure and flow rate on heat gain.
Huaping Zhang, Qiongqiong Yao, Peizheng Liu, Zhangyang Kang, Rufei Tan, Jin Xu   +5 more
wiley   +1 more source

Fluid Relaxation Approximation of the Busenberg-Travis Cross-Diffusion System. [PDF]

Commun Math Phys
Carrillo JA, Chen X, Du B, Jüngel A.
europepmc   +1 more source

Lattice Boltzmann Method Simulations About Shale Gas Diffusion in Sinusoidal Channels

Energy Science &Engineering, EarlyView.
This paper characterizes the microscopic features of shale nanopores using sinusoidal functions and investigates the diffusion effects of methane gas in irregular nanopores through the lattice Boltzmann method. The result shows that methane is significantly influenced by large‐amplitude protrusions of the wall.
Xu Yan, Yuli Chang, Yafei Xu, Jichao Zhao, Dehua Liu   +4 more
wiley   +1 more source

Alternating Direction Implicit Method for Solving Parabolic Partial Differential Equations in Three Dimensions [PDF]

, 2012
Abdulghafor M. Al-Rozbayani, Mahmood Yahya   +1 more
openalex   +1 more source

On the numerical solution of parabolic partial differential equations [PDF]

Journal of Research of the National Bureau of Standards, 1953
openaire   +1 more source

Nonlinear dynamic characteristics of modified variable hyperbolic circular arc tooth trace cylindrical gears. [PDF]

Sci Rep
Ma D, Ye Z.
europepmc   +1 more source