Results 61 to 70 of about 4,749,978 (243)

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Geometric distance and semantic structure: A methodological innovation for mixed methods research with HUDAP and ATLAS.ti

Methodological Innovations
This article presents a rigorous and replicable methodological alternative for articulating quantitative and qualitative analyses within mixed-methods research, contributing to interpretive coherence by relating quantitative proximity structures to ...
Jimmy William Ramírez Cano, William Manuel Mora Penagos, Diego Mauricio Rivera Pinzón   +2 more
doaj   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Fractal dimension accounts for allometric scaling exponents of cities

Heliyon
Fractal theory has long been used to explain the scaling exponent of allometric growth models. However, the relationship between fractals and allometry is still questioned by some scholars. One viewpoint is that fractals involve scaling laws, but scaling
Yanguang Chen
doaj   +1 more source

Prenatal exposure to thallium is associated with decreased mitochondrial DNA copy number in newborns: Evidence from a birth cohort study

Environment International, 2019
Background: Prenatal exposure to thallium is related to adverse birth outcomes. However, little is known about the effects of prenatal exposure to thallium on the mitochondrial DNA copy number (mtDNAcn) in newborns; such knowledge might reveal a ...
Mingyang Wu, Yanling Shu, Lulu Song, Bingqing Liu, Lina Zhang, Lulin Wang, Yunyun Liu, Jianing Bi, Chao Xiong, Zhongqiang Cao, Shunqing Xu, Wei Xia, Yuanyuan Li, Youjie Wang   +13 more
doaj   +1 more source

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source

A Data-Driven Framework for Class Overlap Reduction to Improve Soft Sensor Performance

Sensors
In the data-driven applications, class overlap and class imbalance are major factors that degrade machine learning performance. While existing resampling methods often address these issues independently, they frequently fail to preserve the underlying ...
Faizal Widya Nugraha, Thanda Shwe, Israel Mendonça, Masayoshi Aritsugi   +3 more
doaj   +1 more source

The geometric mean concentrations of anti-pneumococcal IgG antibodies (μg/ mL, 95% confidence intervals of the geometric mean).

, 2022
The geometric mean concentrations of anti-pneumococcal IgG antibodies (μg/ mL, 95% confidence intervals of the geometric mean).
Eli B. Nix (12418705), Joelle Thorgrimson (5634926), Marina Ulanova (5634938), Gabrielle N. Gaultier (5634923), William McCready (7858295), Douglas Boreham (5634935)   +5 more
core   +1 more source