Results 11 to 20 of about 7,481 (302)

Microstructural damage of thermal barrier coatings due to CMAS [PDF]

open access: yes, 2013
Over recent years, due to a constant desire for higher efficiency engines and hence increased turbine entry temperatures and a proportional reduction in [Carbon dioxide] emissions, there is a need to understand how molten slags (CMAS: Calcia magnesia ...
Ndamka, Ngunjoh Lawrence
core   +7 more sources

Failure and Protection of Thermal Barrier Coating under CMAS Attack

open access: yesJournal of Aeronautical Materials, 2018
Along with the increase of operating temperature of aero-engine, thermal barrier coatings (TBCs) used in the engine are highly susceptible to the attack of glassy silicate deposits, the chemical composition of which is mostly CaO-MgO-Al2O3-SiO2 (CMAS ...
YANG Shanjie, PENG Hui, GUO Hongbo
doaj   +1 more source

PSA-CMA-ES [PDF]

open access: yesProceedings of the Genetic and Evolutionary Computation Conference, 2018
The population size, i.e., the number of candidate solutions generated at each iteration, is the most critical strategy parameter in the covariance matrix adaptation evolution strategy, CMA-ES, which is one of the state-of-the-art search algorithms for black-box continuous optimization.
Kouhei Nishida, Youhei Akimoto
openaire   +2 more sources

CMAS corrosion of EB PVD TBCs: Identifying the minimum level to initiate damage [PDF]

open access: yes, 2010
Over the last decade a significant amount of research has been conducted into the durability of thermal barrier coatings (TBCs) focusing mainly on issues of oxidation, erosion and foreign object damage (FOD). However, as the performance and durability
Whitman, G.   +2 more
core   +1 more source

CMA driver's guide [PDF]

open access: yesCanadian Medical Association Journal, 2007
I have concerns about the CMA's guidelines on determining medical fitness to drive.[1][1] All Canadian provinces and territories currently use the medical standards produced by the Canadian Council of Motor Transport Administrators (CCMTA)[2][2] to determine the medical fitness of drivers.
openaire   +2 more sources

Further development of the Children’s Mathematics Anxiety Scale UK (CMAS-UK) for ages 4–7 years [PDF]

open access: yes, 2018
There are currently many mathematics anxiety rating scales designed typically for adult and older children populations, yet there remains a lack of assessment tools for younger children ( 0.45) and high internal consistency (α = 0.88).
Sheffield, David   +4 more
core   +1 more source

The cutting movement assessment score (CMAS) qualitative screening tool: application to mitigate anterior cruciate ligament injury risk during cutting [PDF]

open access: yes, 2021
Side-step cutting is an action associated with non-contact anterior cruciate ligament (ACL) injury with a plethora of negative economical, health, and psychological implications.
Herrington, L.   +23 more
core   +1 more source

Optimizing CMA-ES with CMA-ES - Data and Code

open access: yes, 2023
Data and Code - Conference Paper at ECTA Optimizing CMA-ES with CMA ...
Thomaser, André   +3 more
openaire   +1 more source

Adaptiveness of CMA based samplers

open access: yesProceedings of the Genetic and Evolutionary Computation Conference Companion, 2017
We turn the Covariance Matrix Adaptation Evolution Strategy into an adaptive Markov Chain Monte Carlo (or MCMC) sampling algorithm that adapts online to the target distribution, i.e. the distribution to be sampled from. We call the resulting algorithm CMA-Sampling.
Edna Milgo   +3 more
openaire   +3 more sources

Non-destructive detection of CMAS damage on thermal barrier coatings using AC impedance technique

open access: yesMechanical Engineering Journal, 2016
Thermal barrier coatings (TBCs) on high temperature components in gas turbine engines are in some cases damaged by calcium-magnesium-alumino-silicates (CMAS) resulting from the ingestion of siliceous minerals at high temperatures exceeding 1200°C.
Yuki HAYASHI   +2 more
doaj   +1 more source

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