Results 111 to 120 of about 1,215,177 (342)

Detection and Quantification of Over‐Humidification in Polymer Electrolyte Fuel Cells: Insights into Simulation, Imaging, and Sensors

Advanced Energy and Sustainability Research, EarlyView.
This review highlights advanced methods for detecting and managing over‐humidification in polymer electrolyte fuel cells (PEFCs), emphasizing innovative sensors, simulation techniques, and imaging methods. By addressing the impact of water management on fuel‐cell performance and durability, this study outlines practical and sustainable solutions for ...
Maximilian Käfer, Viktor Hacker, Merit Bodner   +2 more
wiley   +1 more source

A Multiscale Pore Analysis Method for Polymer Electrolyte Membrane Fuel Cell Catalyst Layers Validated and Exemplified by Correlating Microstructure with Production Process Parameters

Advanced Energy and Sustainability Research, EarlyView.
A multiscale pore analysis method is presented for polymer electrolyte membrane fuel cell catalyst‐coated membranes (CCMs), integrating mercury intrusion porosimetry, focused ion beam scanning electron microscopy image analysis via a custom MATLAB tool, and optical/atomic‐force microscopy.
Ahammed Suhail Odungat, Lars Grebener, Oliver Pasdag, Thai Binh Nguyen, Yawen Zhu, Sebastian Kohsakowski, Ivan Radev, Fatih Özcan, Doris Segets   +8 more
wiley   +1 more source

On some possible applications of Laplace operator in a revolved coordinate system for numerical calculations

Тонкие химические технологии, 2013
The Laplace operator in a revolved coordinate system (the “revolved” Laplace operator) is introduced in numerical mesh method along diagonal lines. In this paper an attempt is made to use it for numerical solution of the two-dimensional Poisson equation.
A. B. Chaadaev
doaj  

Functional Nanosensor‐Integrated System Based on Molecularly Imprinted Quartz Crystal Microbalance for Rapid In Situ Detection of 3‐Chloro‐1,2‐Propanediol in Paper‐Based Food Contact Materials

Aggregate, EarlyView.
This study developed a rapid, in situ, and derivatization‐free detection system for 3‐MCPD in paper‐based food contact materials, based on molecular imprinting and quartz crystal microbalance sensing technologies, achieving a detection limit of 0.006 µM and reducing analysis time by 75% compared to traditional methods.
Jinwei Zhao, Yi Xie, Haodong Guo, Jiali Pu, Qiuping Wu, Shuangquan Yao, Chen Liang, Shiming Zhang, Baojie Liu, Caoxing Huang, Chengrong Qin   +10 more
wiley   +1 more source

[Three-dimensional reconstruction of femur based on Laplace operator and statistical shape model]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2023
Zhang Z, Zhang X, Zhang Y, Jin Z.
europepmc   +1 more source

Moduli spaces of meromorphic functions and determinant of Laplacian

, 2014
The Hurwitz space is the moduli space of pairs $(X,f)$ where $X$ is a compact Riemann surface and $f$ is a meromorphic function on $X$. We study the Laplace operator $\Delta^{|df|^2}$ of the flat singular Riemannian manifold $(X,|df|^2)$.
Hillairet, Luc, Kalvin, Victor, Kokotov, Alexey   +2 more
core  

Optical computation of the Laplace operator using phase-shifted Bragg grating.

Optics Express, 2014
Diffraction of a 3D optical beam on a multilayer phase-shifted Bragg grating (PSBG) is considered. It is shown that the PSBG enables optical computation of the spatial Laplace operator of the electromagnetic field components of the incident beam.
D. Bykov, L. Doskolovich, E. Bezus, V. Soifer   +3 more
semanticscholar   +1 more source

Pervasiveness of the $p$-Laplace operator under localization of fractional $g$-Laplace operators

, 2023
In this work we analyze the behavior of truncated functionals as \begin{equation*} \int_{\mathbb{R}^N}\int_{B(x,δ)} G\left(\frac{|u(x)-u(y)|}{|x-y|^{s}}\right)\frac{dydx}{|x-y|^N}\qquad\text{for }δ\to0^+. \end{equation*} Here the function $G$ is an Orlicz function that in addition is assumed to be a regularly varying function at $0$.
openaire   +2 more sources

Design, Control, and Clinical Applications of Magnetic Actuation Systems: Challenges and Opportunities

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This review aims to provide a broad understanding for interdisciplinary researchers in engineering and clinical applications. It addresses the development and control of magnetic actuation systems (MASs) in clinical surgeries and their revolutionary effects in multiple clinical applications.
Yingxin Huo, Lidong Yang, Tiantian Xu, Dong Sun   +3 more
wiley   +1 more source

Maximum Principle for the Space-Time Fractional Conformable Differential System Involving the Fractional Laplace Operator

Journal of Mathematics, 2020
In this paper, the authors consider a IBVP for the time-space fractional PDE with the fractional conformable derivative and the fractional Laplace operator. A fractional conformable extremum principle is presented and proved.
Tingting Guan, Guotao Wang
doaj   +1 more source