Results 91 to 100 of about 3,855,615 (290)

Associations of Frailty With the Risk of Incident Cancer and Cancer‐Related Mortality in Veterans With Rheumatoid Arthritis

Arthritis Care &Research, EarlyView.
Objective This study investigated the association between frailty and cancer incidence and mortality in patients with rheumatoid arthritis (RA). It aimed to identify how frailty influences cancer risk and cancer‐specific outcomes. Methods This retrospective cohort study analyzed data from the Veterans’ Affairs Rheumatoid Arthritis Registry (2002–2023).
Bhavik Bansal, Aaron Baraff, Katherine Wysham, James S. Andrews, Bryant R. England, Ted R. Mikuls, Joshua Baker, Kaleb Michaud, Alexa Meara, Una Makris, Carolyn Presley, Ariela Orkaby, Namrata Singh   +12 more
wiley   +1 more source

Fluid catalytic cracking VII : preparation and characterization of catalysts : proceedings of the 7th International Symposium on Advances in Fluid Cracking Catalysts (FCCs) /

, 2007
Since 1987, the Petroleum Division of the American Chemical Society (ACS) has sponsored at 3 year intervals an international symposium on fluid cracking catalysts (FCC) technology.
International Symposium on Advances in Fluid Cracking Catalysts(7th), Occelli, Mario L.   +1 more
core  

Influences of surface-area-to-volume ratio on the early-age thermal cracking characteristics of mass concrete, with a special focus on the foundation continuously poured by two different heat generation mixes

Next Materials
This study investigates the influence of structural geometry, represented by the surface-area-to-volume (A/V) ratio, on the early-age thermal cracking behavior of mass concrete foundations cast continuously using two distinct heat-generation mixtures. An
Van-Minh Le, Ngoc-Khoa Ho, Chi-Cong Vu, Tien-Toi Pham   +3 more
doaj   +1 more source

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

A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions

Advanced Engineering Materials, EarlyView.
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice, Krzysztof S. Stopka, Michael D. Sangid   +2 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

Cracking behavior and fracture mechanism of rock-concrete composite interface under different stress conditions: Experimental and numerical approaches

Case Studies in Construction Materials
The cracking behavior and mechanical characteristics of rock-concrete (R-C) composite under different stress conditions are crucial for ensuring engineering safety and stability. In this study, a numerical model of R-C composite was established employing
Zihao Ou, Jianyou Lu, Tengfei Guo, Xu Chang, Yichao Rui, Jiawang Xu, Feng Bin   +6 more
doaj   +1 more source

The characteristics of ultra-high performance concrete and cracking behavior of reinforced concrete tensile specimens [PDF]

Journal of Structural and Construction Engineering, 2016
The tensile behavior of concrete depends on some factors such as member dimensions, reinforcement ratio, diameter of rebar, strength and elasticity modulus of material.
H.A. Rahdar, M. Ghalehnovi
doaj  

Fatigue crack growth behavior for 3D inclined surface crack

IOP Conference Series: Materials Science and Engineering, 2011
In the present study, the fatigue life and surface crack extension direction in a cylindrical elastic bar with an inclined surface crack were experimentally investigated. The effects of loading type, stress ratio and crack inclination angle on the crack growth behavior were also determined.
F P Yang, Z B Kuang, Y Mutoh, Y Miyashita   +3 more
openaire   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source