Results 91 to 100 of about 18,590 (217)

Portfolio‐Level Reliability Analysis of a Multi‐Asset System: A Frailty Proportional Intensity Modeling Framework

Quality and Reliability Engineering International, EarlyView.
ABSTRACT Understanding and modeling the equipment failure behavior is crucial for reducing downtime, optimizing maintenance strategies, and improving operational safety. This challenge becomes particularly critical in industrial contexts involving multi‐asset portfolios, where heterogeneous conditions influence the reliability of individual assets and,
Zeynab Allahkarami, Ahmad Reza Sayadi, Behzad Ghodrati, Ebru Turanoglu Bekar, Anders Skoogh   +4 more
wiley   +1 more source

Characterization of Rain Attenuation for Millimeter Wavelengths for Realistic Nonrotational Symmetric Drop Shapes

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT The use of frequencies above 30 GHz (millimeter waves) for communication purposes is nowadays a necessity, both for terrestrial (e.g., 5G/6G) and satellite links. One reason is the need for more bandwidth and the fact that “traditional” frequency bands are already fully occupied.
Franz Teschl, Anđela Šević, Merhala Thurai, Michael Schönhuber   +3 more
wiley   +1 more source

Correlative Operando X‐Ray Imaging and Diffraction Revealing Mechanical Failure Pathways in Lithium Metal Sulfide‐Based All‐Solid‐State Batteries

Small, EarlyView.
This work presents a multimodal operando characterization framework combining operando X‐ray computed tomography and X‐ray diffraction to reveal multiscale degradation mechanisms in sulfide‐based all‐solid‐state batteries. Correlating particle morphology, lattice evolution, and interfacial mechanics uncovers heterogeneous lithiation, crack propagation,
Linfeng Xu, James Le Houx, Tristan Manchester, Jinsong Zhang, Robin Norbert Wullich, Victor Alexander Gomez, Johannes Ihli, Sarbajit Banerjee, Thomas J. Schmidt, Mario El Kazzi   +9 more
wiley   +1 more source

Numerical Study of Argon Bubble Transport and Entrapment in Continuous Casting Using a Multiphase Approach

steel research international, EarlyView.
Bubble transport in continuous casting is controlled by the interaction of bubble size, flow dynamics, and operating conditions. Critical regions governing bubble escape and entrapment are identified, revealing the mechanisms responsible for defect formation and providing practical guidance for process optimization. Argon injection is often used in the
Dianzhi Meng, Mingqian Wang, Armin K. Silaen, Bikram Konar, Shaojie Chen, Chenn Zhou   +5 more
wiley   +1 more source

Severity‐Based Reliability Assessment of Energy Communities

Safety Science and Technology, EarlyView.
We develop a severity‐based semi‐Markov framework that replaces binary generation‐demand adequacy with a time‐varying, multistate classification of renewable‐energy shortfalls. The method quantifies shortfall probability, magnitude, persistence, first‐passage time, and unsafe occupation, and derives a cyclo‐stationary severity law to support safety ...
Guglielmo D'Amico, Filippo Petroni, Salvatore Vergine   +2 more
wiley   +1 more source

A probabilistic framework for modeling chloride‐induced corrosion and related load‐deformation behaviour of reinforced concrete

Structural Concrete, EarlyView.
Abstract Chloride‐exposed reinforced‐concrete structures often suffer localized corrosion, so corrosion initiation time and average steel loss are poor indicators of structural performance. This paper presents a spatially resolved, proof‐of‐concept framework that couples diffusion‐based chloride ingress and initiation with a localized morphology model ...
Deniz Yilmaz, Karel Thoma, Ueli Angst
wiley   +1 more source

齿轮可靠性设计中微布尔分布的三参数估计

Jixie chuandong, 2008
The three parameters estimation of Weibull distribution is the first problem in gear reliability design using weibull distribution to describe random factors influencing gear reliability.
孙淑霞, 李良巧, 孙志礼, 白平
doaj  

Energy Flows Balance of Electric‐Heating Interconnected Microgrids Under Grid‐Forming Converter Integration Based on Heterogeneous Graph Convolutional Network

Energy Internet, EarlyView.
ABSTRACT The combination of electric‐heating interconnected microgrids (EHIMs) with grid‐forming converters (GFMCs) offers a highly promising approach to improving energy management within decentralised energy systems. Despite its potential, precisely modelling and analysing energy flow in such systems remains a considerable challenge due to the ...
Ji Li, Jinduo Yang, Yang Kou, Qingyuan Zhang, Xiao Hu, Yang Gao, Fei Fei Li, Wei Le Liang, Yiyan Li, Ming Li, Lei Xu, Kepaiyitulla Tursun, Yan Qing Peng, Ying Li Huo, Yun Shan Wang, Ze Zhen Zhang   +15 more
wiley   +1 more source

Wind farm maintenance optimisation strategy considering MFTS distance‐based K‐medoids clustering and mixed Weibull model

Energy Conversion and Economics, EarlyView.
Abstract This paper proposes a wind‐resource‐weighted maintenance optimization framework to reduce operation and maintenance (O&M) costs and improve power generation efficiency. Existing clustering methods based on single distance metrics cannot fully capture the multidimensional temporal characteristics of wind‐speed data, while single Weibull models ...
Haixin Wang, Rui Zhuang, Junyou Yang, Mingchao Xia, Qifang Chen, Yubin Wang, Gang Zhao, Minghang Cao, Sharara Rehimi, Hassan Bevrani, Dan Doru Micu, Jingtao Zhao   +11 more
wiley   +1 more source

Time to Breakdown for Type I Motor Winding Insulation Under High‐Frequency High‐Slew‐Rate Square Wave Voltages

High Voltage, EarlyView.
ABSTRACT The emergence of (ultra)wide bandgap ((U)WBG)‐based devices has significantly enhanced performance in high‐frequency switching applications, enabling breakthroughs in electric transportation, aerospace, and renewable energy systems. However, it also presents considerable challenges to insulation systems, such as electric motor winding ...
Easir Arafat, Md Asifur Rahman, Farzana Islam, Mona Ghassemi   +3 more
wiley   +1 more source