Results 71 to 80 of about 92,920 (310)

Influence of U-shaped structure on upward flame spread and heat transfer behaviors of PMMA used in building thermal engineering

open access: yesCase Studies in Thermal Engineering, 2020
Both experimental and theoretical study on upward flame spread and heat transfer behaviors of PMMA (polymethyl methacrylate) under different U-shaped structure factors (Π) was conducted. The main results are as follows. The progress of pyrolysis front is
Weiguang An   +5 more
doaj   +1 more source

Slip Localization Intensification Mediated by Grain Boundary Sliding in a Polycrystalline Nickel‐Based Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
The temperature dependence of fatigue behavior in nickel‐based superalloys is investigated through high‐resolution measurements of plastic localization. While increasing temperature reduces localization and enhances fatigue performance in René 88DT, Inconel 718 exhibits a sharp degradation at intermediate temperature due to intensified slip ...
M. Calvat   +5 more
wiley   +1 more source

Evolving temporal association rules with genetic algorithms [PDF]

open access: yes, 2010
A novel framework for mining temporal association rules by discovering itemsets with a genetic algorithm is introduced. Metaheuristics have been applied to association rule mining, we show the efficacy of extending this to another variant - temporal ...
Gongora, Mario A.   +6 more
core   +1 more source

Experimental Characterization and Constitutive Modeling of the Effect of Prior Inelastic Strain on the Viscoplastic Behavior of AD730 at 700 °C

open access: yesAdvanced Engineering Materials, EarlyView.
This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca   +9 more
wiley   +1 more source

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

open access: yesAdvanced 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   +10 more
wiley   +1 more source

Problems of research and mining of gas deposits on the Moon [PDF]

open access: yes, 2017
Purpose. The study of the main types of the most valuable lunar resources, such as water, hydrogen, oxygen and other gases in the lunar regolith, and the identification of the main methods and technical solutions for their exploration and mining ...
Slyuta, E
core   +1 more source

Polymer Interface Enables Reversible Quasi‐Solid Sulfur Conversion in Sodium‐Sulfur Batteries

open access: yesAdvanced Functional Materials, EarlyView.
The polymer interface enables a stable quasi‐solid sulfur conversion pathway in room‐temperature Na─S batteries. The coating regulates Na+ transport, stabilizes the cathode–electrolyte interphase, and accommodates mechanical stress, suppressing electrolyte decomposition and sulfur migration, thereby improving reaction uniformity, reducing polarization,
Reza Andaveh   +12 more
wiley   +1 more source

m7GDisAI: N7-methylguanosine (m7G) sites and diseases associations inference based on heterogeneous network

open access: yesBMC Bioinformatics, 2021
Background Recent studies have confirmed that N7-methylguanosine (m7G) modification plays an important role in regulating various biological processes and has associations with multiple diseases.
Jiani Ma   +5 more
doaj   +1 more source

Mining Recurring Concepts in a Dynamic Feature Space [PDF]

open access: yesIEEE Transactions on Neural Networks and Learning Systems, 2014
Most data stream classification techniques assume that the underlying feature space is static. However, in real-world applications the set of features and their relevance to the target concept may change over time. In addition, when the underlying concepts reappear, reusing previously learnt models can enhance the learning process in terms of accuracy ...
João Bártolo Gomes   +3 more
openaire   +3 more sources

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

open access: yesAdvanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu   +3 more
wiley   +1 more source

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