Results 161 to 170 of about 119,303 (372)

3D investigation and modeling of the geometric effects on porosity in packed beds

AIChE Journal, EarlyView.
Abstract In porous beds, physical boundaries restrict particle arrangement, leading to inhomogeneous porosity. This paper reports on the porosity profiles that are the result of geometric effects on monodisperse packed beds in cylindrical and cubic arrangements. Special focus is given to the influence of edges and corners in cubic geometries.
Bastian Oldach, Konrad E. R. Boettcher, Alexander S. Sommer‐Behr, Norbert Kockmann   +3 more
wiley   +1 more source

Thermometric Based‐Microswimmers with Chemical and Optical Engines

Advanced Intelligent Systems, EarlyView.
Temperature sensing at small scales is typically performed using passive luminescent particles. Here, an alternative approach is demonstrated by integrating upconversion thermometry into self‐propelled microswimmers powered by chemical fuels or light. This strategy offers a step toward dynamic thermal sensing at the microscale, relevant to both lab‐on ...
João M. Gonçalves, Katherine Villa
wiley   +1 more source

Partial boundary value condition for a nonlinear degenerate parabolic equation

Journal of Differential Equations, 2019
Huashui Zhan, Zhaosheng Feng
semanticscholar   +1 more source

Compact Terahertz Dual‐Comb Spectroscopy with All‐Digitally Generated Adaptive Clock

Advanced Physics Research, EarlyView.
This work demonstrates a compact terahertz dual‐comb spectrometer using an all‐digital adaptive clock generated on an FPGA. This system achieves high precision across 1.6 THz, resolves over 24 000 comb lines with kHz resolution, and offers enhanced stability and a simplified architecture compared to analog‐based methods.
Min Li, Yu Xia, Xiaofei Liu, Sinan Tao, Mingyang He, Kun Huang, Shuang Li, Ming Yan, Heping Zeng   +8 more
wiley   +1 more source

Global attractor for a semilinear strongly degenerate parabolic equation on $${\mathbb{R}^N}$$RN

Nonlinear Differential Equations and Applications NoDEA, 2014
C. T. Anh
semanticscholar   +2 more sources

Neumann problems for singular degenerate parabolic equations on nonsmooth domains (Viscosity Solutions of Differential Equations and Related Topics)

, 2003
Moto-Hiko Sato
openalex   +2 more sources

Solar‐Blind Ultraviolet Photodetectors Based on Two‐Dimensional Materials and Their Heterostructures

Advanced Physics Research, EarlyView.
Solar‐blind ultraviolet photodetectors are crucial for diverse applications. This review comprehensively summarizes recent advances using two‐dimensional materials and their heterostructures, which offer tunable bandgaps, flexibility, and no lattice‐matching constraints.
Yu Lu, Junming Song, Xiarui Wu, Junpeng Lu, Zhenhua Ni, Weiwei Zhao, Fang Yang, Hongwei Liu   +7 more
wiley   +1 more source

Degenerate parabolic $p$-Laplacian equations: existence, uniqueness and asymptotic behavior of solutions [PDF]

David Cruz-Uribe, OFS, Kabe Moen
openalex   +1 more source

An Optimal Control Problem in Coefficients for a Strongly Degenerate Parabolic Equation with Interior Degeneracy

Journal of Optimization Theory and Applications, 2017
G. Marinoschi, R. Mininni, S. Romanelli
semanticscholar   +1 more source

Bottom‐Up Ice Growth Geometry Attenuates Shear Stress and Improves the Cryopreservation of Hematopoietic Stem/Progenitor Cells Under Low DMSO Concentrations

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Studies on cell cryopreservation have been limited by the complexity of the freezing process and challenges on controlling ice formation, managing cooling rates, and optimizing cryoprotectant concentrations. The objective of this study is to evaluate the impact of bottom‐up and conventional radial freezing on the viability of mammalian cells ...
Rafaela Ouro Neves, Pedro Sena Rego, Marta H. G. Costa, Isabel Bogalho, Andreia Duarte, Claúdia L. da Silva, Frederico Castelo Ferreira, Vitor Geraldes, Miguel A. Rodrigues   +8 more
wiley   +1 more source