Results 141 to 150 of about 9,834 (320)

Space‐Time Smoothness and Parsimony in Covariance Functions

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT This paper challenges the trade off between computational efficiency and statistical accuracy within the framework of Gaussian space‐time processes. Under such a framework, the space‐time dependence is completely specified through the space‐time covariance function.
Tarik Faouzi, Emilio Porcu, Moreno Bevilacqua   +2 more
wiley   +1 more source

Scenario‐free robust optimization algorithm for IMRT and IMPT treatment planning

Medical Physics, EarlyView.
Abstract Background Robust treatment planning algorithms for intensity modulated proton therapy (IMPT) and intensity modulated radiation therapy (IMRT) allow for uncertainty reduction in the delivered dose distributions through explicit inclusion of error scenarios.
Remo Cristoforetti, Jennifer Josephine Hardt, Niklas Wahl   +2 more
wiley   +1 more source

Latent space reconstruction for missing data problems in CT

Medical Physics, EarlyView.
Abstract Background The reconstruction of a computed tomography (CT) image can be compromised by artifacts, which, in many cases, reduce the diagnostic value of the image. These artifacts often result from missing or corrupt regions in the projection data, for example, by truncation, metal, or limited angle acquisitions.
Anton Kabelac, Elias Eulig, Joscha Maier, Maximilian Hammermann, Michael Knaup, Marc Kachelrieß   +5 more
wiley   +1 more source

On Fock-space representations of quantized enveloping algebras related to noncommutative differential geometry [PDF]

, 1995
Branislav Jurčo, Michael Schlieker
openalex   +1 more source

Uncertainty Quantification for Nonlinear Vibration of Supercritical Drive Shaft With a Dry Friction Damper

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT The supercritical drive shaft is becoming increasingly popular in helicopter transmission system. Dry friction dampers are specially employed to ensure the supercritical shafts crossing the critical speed safely. Due to design tolerances, manufacturing errors and time‐varying factors, the parameters of the damper are inherently uncertain ...
Liyao Song, Meijun Liao, Weifang Chen, Rupeng Zhu, Dan Wang   +4 more
wiley   +1 more source

Numerical Modelling of Frictional Sliding Induced Damage and Heating Effects on Rock With an Application to Sievers’ J‐Miniature Drilling on Granite

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT The present study develops a finite element‐based numerical method for simulation of frictional rotational sliding induced damage and heating effects on rock. The method is applied to the Sievers’ J‐ miniature drill test, which is widely used for estimating the rock drillability and predicting the cutter life.
Timo Saksala, Arturo Rubio Ruiz, Suprit Bhusare, Gaurav Mohanty, Terence Coudert, Stéphane Dumoulin, Ruben Bjørge, Pascal‐Alexandre Kane, Mikko Hokka   +8 more
wiley   +1 more source

Non-smooth differential geometry and algebras of generalized functions

, 2003
Michael Kunzinger
openalex   +2 more sources

Exploring the Elastic Properties of Interfacial Transition Zone in Concrete Materials Using an Ensemble Learning Approach

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Concrete materials consist of multiple phases with distinct mechanical properties, making it essential to accurately identify the mechanical behavior of both constituent phases and their interfaces for effective multiscale modeling. This study estimates the elastic properties of the interfacial transition zone using a machine learning (ML ...
Jing Xue, Yajun Cao, Xiaolong Zhao, Jianfu Shao   +3 more
wiley   +1 more source

Drinfel’d double of bialgebroids for string and M theories: dual calculus framework

Journal of High Energy Physics
We extend the notion of Lie bialgebroids for more general bracket structures used in string and M theories. We formalize the notions of calculus and dual calculi on algebroids.
Aybike Çatal-Özer, Keremcan Doğan, Cem Yetişmişoğlu   +2 more
doaj   +1 more source

Early Adolescent Cyberbullying Victimization, Learning Readiness, and Academic Achievement Among South Australian Students

Psychology in the Schools, EarlyView.
ABSTRACT Cyberbullying is an increasingly researched topic in the field of adolescence, largely due to its pervasiveness and negative wellbeing outcomes for victims. However, existing literature in this area largely focuses on those aged above 13 years, despite evidence suggesting that early adolescents (ages 10–13) also experience victimization ...
Jasmin Williams, Sarah Halliday
wiley   +1 more source