Results 111 to 120 of about 4,202,279 (295)

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

Advanced 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, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Análisis de series temporales financieras

, 2016
RESUMEN: Los constantes avances producidos en el campo de la econometría han llevado al desarrollo de métodos adaptativos que permiten modelar la volatilidad de los distintos activos que integran los mercados financieros. Gran parte de los métodos existentes a día de hoy parten de la metodología Box-Jenkins, cuyos autores desarrollan una serie de ...
openaire   +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

Algoritmos para la detección de latidos ectópicos utilizando series temporales de la señal electrocardiográfica

Revista Cubana de Ciencias Informáticas, 2011
La presencia de latidos ectópicos en las señales electrocardiográficas (ECG) altera el análisis de la señal de Variabilidad del Ritmo Cardiaco (HRV) para diagnóstico y seguimiento de diferentes enfermedades, por lo que se hace necesaria su detección y ...
Juan V. Lorenzo Ginori, Yusely Ruiz González   +1 more
doaj  

Leisure time physical activity among older adults in Brazil: a time series analysis of a population-based survey (2009-2020). [PDF]

Cad Saude Publica, 2023
Soares MM, Caldeira TCM, Sousa TM, Rezende LFM, Claro RM.   +4 more
europepmc   +1 more source

Modelos para series temporales heterocedásticas

, 2008
Muchas series temporales financieras observadas con frecuencias elevadas y algunas series macroeconómicas son condicionalmente heterocedásticas. La modelización de la varianza condicional de dichas series es importante desde un punto de vista teórico para cualquier modelo que tenga en cuenta la incertidumbre.
openaire   +2 more sources

Microstructure Modification of Additively Manufactured Mo–9Si–8B by Annealing and Its Effects on High‐Temperature Mechanical Properties

Advanced Engineering Materials, EarlyView.
Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt, Yong Chen, Georg Hasemann, Benjamin Wahlmann, Carolin Körner, Manja Krüger   +5 more
wiley   +1 more source

Determinación numérica del exponente de Lyapunov de una serie temporal caótica

Programación Matemática y Software
La determinación del exponente de Lyapunov de una serie temporal a través de procesos numéricos tiene diversas implicaciones. Dependiendo de si el exponente de Lyapunov dominante es positivo o negativo, podemos determinar si la serie temporal es caótica
Gennadiy Burlak, Rafael Amador Condado-Pérez, Gustavo Médina-Ángel   +2 more
doaj   +1 more source

Association between antibiotic pressure and the risk of colonization/infection by multidrug-resistant Acinetobacter baumannii complex: a time series analysis. [PDF]

Rev Esp Quimioter, 2021
Huertas Vaquero M, Asencio Egea MA, Carranza González R, Padilla Serrano A, Conde García MC, Tenias Burillo JM, Redondo González O.   +6 more
europepmc   +1 more source

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

Advanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn, Sarah Kaden, Andrea Barz, Daniel Störzner, Jens Bliedtner, Andrés Fabián Lasagni   +5 more
wiley   +1 more source