Results 121 to 130 of about 2,830 (310)

Null controllability for singular cascade systems of $ n $-coupled degenerate parabolic equations by one control force

, 2020
Brahim Allal, Abdelkarim Hajjaj, Lahcen Maniar, Jawad Salhi   +3 more
openalex   +2 more sources

Degenerate homogeneous parabolic equations associated with the\n infinity-Laplacian [PDF]

, 2010
Manuel Portilheiro, Juan Luís Vázquez
openalex   +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

Nehari manifold for degenerate logistic parabolic equations

Electronic Journal of Differential Equations
In this article we analyze the behavior of solutions to a degenerate logistic equation with a nonlinear term $b(x)f(u)$ where the weight function $b$ is non-positive.
Juliana Fernandes, Liliane Maia
doaj  

Discrete duality finite volume schemes for doubly nonlinear degenerate hyperbolic-parabolic equations [PDF]

, 2009
Boris Andreïanov, Mostafa Bendahmane, Kenneth H. Karlsen   +2 more
openalex   +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

Convergence analysis of domain decomposition based time integrators for degenerate parabolic equations. [PDF]

Numer Math (Heidelb), 2018
Eisenmann M, Hansen E.
europepmc   +1 more source

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

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

Controllability of nonlinear degenerate parabolic cascade systems

Electronic Journal of Differential Equations, 2016
This article studies of null controllability property of nonlinear coupled one dimensional degenerate parabolic equations. These equations form a cascade system, that is, the solution of the first equation acts as a control in the second equation and
Mamadou Birba, Oumar Traore
doaj