Results 91 to 100 of about 1,831,408 (276)

Variance‐Empirical Mode Decomposition Method for Fault Detection in MMC‐HVDC Transmission Lines

Energy Science &Engineering, EarlyView.
A variance‐embedded empirical mode decomposition (VEMD) method is proposed for fast and accurate fault detection in MMC‐HVDC transmission lines. By combining variance analysis with EMD, the method reliably detects various faults without communication links and remains robust to noise and non‐fault transients.
Seyed Amir Hosseini, Behrooz Taheri
wiley   +1 more source

Analysis and Classification of Partial Shading Conditions in Photovoltaic Arrays

Energy Science &Engineering, EarlyView.
This study presents new mathematical models for describing P–V curve extrema under different shading scenarios and applies machine learning classifiers that use features derived from P–V characteristics for accurate fault identification. ABSTRACT With the escalating global transition toward renewable energy, ensuring the operational stability and ...
Hamid Reza Parsa, Mohammad Sarvi
wiley   +1 more source

Predicting Solar Photovoltaic Power Output in Saudi Arabia's Jazan Region: Performance Comparison of Machine Learning Models

Energy Science &Engineering, EarlyView.
Workflow of the PV power estimation and ML forecasting methodology. ABSTRACT Accurate prediction of solar panel energy output is vital for managing power systems effectively and maintaining a stable electrical grid. This is especially important in regions that rely heavily on renewable sources. This research provides a direct comparison of five machine
Abdoalateef Alzhrani, Abdullahi Abubakar Mas'ud, Mohd Khairul Amri Kamarudin, Firdaus Muhammad‐Sukki, Abdullahi Mohammad   +4 more
wiley   +1 more source

A fuzzy reliability assessment methodology for city gas stations based on an extended T-S fault tree

Heliyon
City gas stations (CGSs) play a crucial role in ensuring a stable and safe supply of natural gas to urban users. However, as the service time of stations increases and the performance of components deteriorates, concerns about the safety and reliability ...
Daqing Wang, Ping Liang, Tingting Luo, Haihong Yu   +3 more
doaj   +1 more source

Notable Impact of Paleotectonic Stress on Gold Mineralisation in the West Qinling Orogen

Geological Journal, EarlyView.
By applying fuzzy clustering and multiple inverse methods, we systematically processed the data of vein and fault slip in this ore deposit to reveal the transition of orogenic geological environment and paleotectonic stress field. Our research results show two different stress states: the northwest–southeast extensional stress field and the northeast ...
Hongyan Wang, Aibing Chen, Jian Yang, Yuan Zhang   +3 more
wiley   +1 more source

RELIABILITY ANALYSIS OF INCLINED ELEVATOR SAFETY BRAKING SYSTEM BASED ON A FUZZY DYNAMIC FAULT TREE

Jixie qiangdu
During the operation of inclined elevators, their safety braking systems were identified as key factors affecting the safety and reliability of the equipment.
LU Mingxue, HU Ming, LIN Qingyun, YE Jiekai, LI Wu, ZHOU Qibiao   +5 more
doaj  

Developing a Z‐ESG Score Model for Assessing Corporate ESG Performance

International Journal of Finance &Economics, EarlyView.
ABSTRACT In this study we develop a novel, unique ESG rating model that exploits the logic of the Z‐score by Altman (1968) to discriminate between ESG performing and non‐ESG performing firms using indicators of ESG performance for each of the three pillars (Environmental, Social, Governance) in place of financial ratios.
Edward I. Altman, Francesco Baldi, Claudia D'Ippolito, Antonio Salvi   +3 more
wiley   +1 more source

Tissue Clearing for Lymph Nodes: 3D Mapping of Nerves and the Immune Microenvironment

iNew Medicine, EarlyView.
ABSTRACT Lymph nodes (LNs) are central hubs of adaptive immunity and key relay sites for metastatic tumour cells. However, conventional two‐dimensional histology samples only a small fraction of each node, potentially missing micrometastases and multifocal involvement while obscuring long‐range spatial relationships among tumour deposits, immune ...
Guang‐Hong Su, Fei Wang, Ting‐Hong Wei, Rui Lu, Wen‐Jun Huang, Xiang Zhang, Ling Yin, Jun Li   +7 more
wiley   +1 more source

From Fault Tree to Credit Risk Assessment: A Case Study [PDF]

Reliability has been largely applied to industrial systems in order to study the various possibilities of systems’ failure. The goal is to establish the chain of events leading to any system’s failure, namely the top event.
Hayette Gatfaoui
core   +2 more sources

Fuzzy Rule-Based Investigation of System Reliability with Reliability Block Diagram Method

Bánki Közlemények, 2023
This study analyzes the dependability of a simple network architecture using a fuzzy method that is similar to a stochastic one. This concept is taken from the Fuzzy Fault Tree Analysis (FFTA), which considers the OR and AND gate connections between ...
Hamid Ali Hama Salih
doaj