Results 121 to 130 of about 10,538,350 (306)

Mitigating Creep Anisotropy and Enhancing Performance in Additively Manufactured Ni‐Based Superalloys: A Review

Advanced Engineering Materials, EarlyView.
Additive manufacturing introduces pronounced microstructural and crystallographic anisotropy in Ni‐based superalloys, resulting in orientation‐dependent creep deformation and damage. This review identifies the key microstructural origins of creep anisotropy, examines their influence on dominant deformation mechanisms, and highlights processing ...
Chandan Kumar, Shobhit Pratap Singh, Gaurav Mohanty, Praveen Kumar   +3 more
wiley   +1 more source

Thermal management of portable micro fuel cell stacks

, 2022
S.202-209A prototype of a CamCorder with a PEM fuel cell system consisting of a stack of fifteen bipolar plates was developed to deliver a maximum output power of 9 W. This system replaces the Li-Ion battery pack normally used as an energy source for the
Krumm, M., Reichl, H., Hahn, R.
core   +1 more source

Comparative analysis for thermal management strategies in the design of PEMFC bipolar plates using different flow patterns

Energy Conversion and Management: X
The rapid depletion of fossil fuel reserves and their environmental consequences have catalyzed the search for alternative energy sources. Proton exchange membrane fuel cells (PEMFCs) are one of the most promising technologies, with efficiencies of over ...
Abubakar Unguwanrimi Yakubu, Omer Abbaker Ahmed Mohammed, Jiahao Zhao, Xuanhong Ye, Qi Jiang, Meng Kai, Liu Qingsheng, Shusheng Xiong   +7 more
doaj   +1 more source

All‐in‐One Analog AI Hardware: On‐Chip Training and Inference with Conductive‐Metal‐Oxide/HfOx ReRAM Devices

Advanced Functional Materials, EarlyView.
An all‐in‐one analog AI accelerator is presented, enabling on‐chip training, weight retention, and long‐term inference acceleration. It leverages a BEOL‐integrated CMO/HfOx ReRAM array with low‐voltage operation (<1.5 V), multi‐bit capability over 32 states, low programming noise (10 nS), and near‐ideal weight transfer.
Donato Francesco Falcone, Victoria Clerico, Wooseok Choi, Tommaso Stecconi, Folkert Horst, Laura Bégon‐Lours, Matteo Galetta, Antonio La Porta, Nikhil Garg, Fabien Alibart, Bert Jan Offrein, Valeria Bragaglia   +11 more
wiley   +1 more source

Experimental investigation into thermal characteristics of subcooled flow boiling in horizontal concentric annuli for cooling ultra-fast electric vehicle charging cables

Case Studies in Thermal Engineering
In an effort to reduce the charging time of electric vehicles (EVs), the thermal management of the charging system has emerged as one of the most urgent issues.
Haein Jung, Seunghyun Lee
doaj   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

Advanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +1 more source

Novel leakage-resilient adaptive fixed-time control based on fractional-order sliding mode technique for PEMFC air supply system

Engineering Science and Technology, an International Journal
Realizing accurate regulation of oxygen stoichiometry in polymer electrolyte membrane fuel cells (PEMFCs) is inherently challenging due to strongly nonlinear dynamics, load perturbations, and operational constraints.
Omer Abbaker Ahmed Mohammed, Shusheng Xiong, Ahmed Mohmed Dafalla, Liu Qingsheng, Meng Kai, Haoping Wang, Muhammad Aurangzeb, Zulkarnain Abbas, Fahim Ullah, Hasan Saeed Qazi, Sami Ul Haq, Abubakar Unguwanrimi Yakubu   +11 more
doaj   +1 more source

Wearable Smart Patches on Sustainable Chitosan With Reversible Microbial Growth‐Inhibitory Properties

Advanced Functional Materials, EarlyView.
ABSTRACT Chitosan, a polysaccharide upcycled from biowaste, has long promised sustainable, biocompatible, and antimicrobial films and devices, an appeal reinforced by its recent regulatory recognition, with several chitosan‐based antibacterial dressings gaining clearance through the Food and Drug Administration's 510(k) pathway.
Jacopo Nicoletti, Kubra Kocak, Andrea Michel, Enrico Cavarzerani, Ali Raza, Petr Rohzin, Nouha Loudhaief, Saimir Frroku, Nicolò Baldovin, Hazrat Bilal, Alvise Perosa, Maurizio Selva, Flavio Rizzolio, Luca Sbuelz, Sabrina Tamburini, Domenico De Fazio, Giovanni Antonio Salvatore   +16 more
wiley   +1 more source

A physics-informed deep learning framework for real-time fault detection, severity estimation, and multi-class fault diagnosis in PEMFC systems

Fuel Processing Technology
Proton exchange membrane fuel cells (PEMFCs) are a cornerstone technology in clean energy conversion, but the commercial implementation of PEMFCs is critically limited by the susceptibility of key internal components to progressive degradation faults ...
Muhammad Aurangzeb, Lu Yixin, Ji Lihua, Lee Zhuoyu, Xiong Shusheng, Abdul Rehman, Omer Abbaker Ahmed Mohammed, Ahmed Mohmed Dafalla, Zulkarnain Abbas, Hasan Saeed Qazi, M. Sami Ul Haq, Muhammad Ahmed, Abubakar Unguwanrimi Yakubu   +12 more
doaj   +1 more source

Self‐Sintering Ionogel Binder for Flexible, Recyclable, and Healable Printed Giant Magnetoresistive Sensors

Advanced Functional Materials, EarlyView.
ABSTRACT Electronic waste has emerged as a major environmental challenge, driven by the massive consumption and a limited lifetime of modern electronic devices, stimulating the development of sustainable electronics. Here, an all‐biomaterial gelatin‐choline‐citric acid ([Ch][CA]) ionogel is developed as an active binder to realize self‐sintered ...
Lin Guo, Xiaotao Wang, Guannan Mu, Proloy Taran Das, Igor Veremchuk, Conrad Schubert, Aaron D. Cross, Yevhen Zabila, Xuan Peng, Larysa Baraban, Denys Makarov   +10 more
wiley   +1 more source