Results 121 to 130 of about 44,546 (316)

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

Noise-Guided Transport for Imitation Learning

open access: yesCoRR
We consider imitation learning in the low-data regime, where only a limited number of expert demonstrations are available. In this setting, methods that rely on large-scale pretraining or high-capacity architectures can be difficult to apply, and efficiency with respect to demonstration data becomes critical.
Lionel Blondé   +2 more
openaire   +2 more sources

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova   +2 more
wiley   +1 more source

A novel image database analysis system maintenance of transportation facility. [PDF]

open access: yes
The current project was funded by MIOH-UTC in the Spring of 2008 to investigate efficientmaintenance methods for transportation facilities. To achieve the objectives of the project, thePIs undertook the research of various technologies of image analysis ...
Lin, En-Bing   +4 more
core  

Association of transportation noise with cardiovascular diseases

open access: yesClinical Cardiology
AbstractThis comprehensive article delves into the intricate and multifaceted issue of noise pollution, shedding light on its diverse sources, profound health implications, and the economic burden it imposes on societies. Noise pollution is an increasingly prevalent environmental challenge, impacting millions of people worldwide, often without their ...
Badar ud Din Shah   +6 more
openaire   +2 more sources

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

open access: yesAdvanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara   +8 more
wiley   +1 more source

The economics of airport noise: how to manage markets for noise licenses [PDF]

open access: yes
Noise-induced pollution constitutes a hot and topical societal problem for all major airports. This paper discusses various issues in the implementation of a market for noise licenses as a solution to solve the noise externality between the residents ...
BRECHET, Thierry, PICARD, Pierre M.
core  

In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal   +4 more
wiley   +1 more source

Noise reduction for powered-lift STOL aircraft

open access: yes, 1973
February 1973Also issued as an M.S. thesis, Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1973Includes bibliographical references (p. 69-71)The direct operating costs and noise impacts of a wide variety of Externally Blown
Moore, Wesley F.
core  

Transportation and Traffic Noise in the City of Hit

open access: yesمجلة جامعة الأنبار للعلوم الإنسانية
Aims: This study aims to measure noise levels generated by various modes of transport in the city of Hit, to determine the spatial variation in noise intensity across the city's neighborhoods and main streets, and to compare the recorded noise levels ...
Hanan Dawood Salman, Qusai Abid Hussein
doaj   +1 more source

Home - About - Disclaimer - Privacy