Results 51 to 60 of about 22,049 (161)

Computational Investigation on the Combined Effect of Applied Strain and Pore Configuration on Strain Concentrators in Additively Manufactured Metals

Fatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT Metal additive manufacturing (AM) provides a pathway for creating highly optimized components that would be difficult to produce using traditional manufacturing methods. However, regardless of printing parameters or postprocessing, porosity remains a prevalent challenge in AM components because strain concentrates in the vicinity of the pore ...
Erick Adan Ramirez, Saikumar Reddy Yeratapally, George Robert Weber, Kenji Shimada   +3 more
wiley   +1 more source

Extremely Fast Maximum Likelihood Estimation of High‐Order Autoregressive Models

Journal of Time Series Analysis, EarlyView.
ABSTRACT We consider the problem of exact maximum likelihood estimation of potentially high‐order (p>50$$ p>50 $$) autoregressive models. We propose an extremely fast coordinate‐wise algorithm for fitting autoregressive models. This fast algorithm exploits several properties of the negative log‐likelihood when parameterised in terms of partial ...
Daniel F. Schmidt, Enes Makalic
wiley   +1 more source

The $k$-th derivatives of the immanant and the $\chi$-symmetric power of an operator

, 2013
In recent papers, R. Bhatia, T. Jain and P. Grover obtained formulas for directional derivatives, of all orders, of the determinant, the permanent, the $m$-th compound map and the $m$-th induced power map.
Carvalho, Sónia, Freitas, Pedro J.
core   +1 more source

Fixing disconnects: Exploring the emergence of principled adaptations in a competency‐based curriculum

Medical Education, Volume 59, Issue 4, Page 428-438, April 2025.
Abstract Purpose Competency‐based medical education (CBME) promises to improve medical education through curricular reforms to support learner development. This intention may be at risk in the case of a Canadian approach to CBME called Competence by Design (CBD), since there have been negative impacts on residents. According to Joseph Schwab, teachers,
Mary C. Ott, Lori Dengler, Kathryn Hibbert, Michael Ott   +3 more
wiley   +1 more source

An observer principle for general relativity [PDF]

, 2014
We give a mathematical uniqueness theorem which in particular shows that symmetric tensors in general relativity are uniquely determined by their monomial functions on the light cone.
Dupre, Maurice J.
core  

Denoising Low‐Power CEST Imaging Using a Deep Learning Approach With a Dual‐Power Feature Preparation Strategy

Magnetic Resonance in Medicine, Volume 95, Issue 3, Page 1410-1428, March 2026.
ABSTRACT Purpose: Low‐power (LP) chemical exchange saturation transfer (CEST) Z‐spectra have significantly reduced confounding effects and enhanced peak resolvability, thereby improving the observation and quantification of various CEST effects. However, LP Z‐spectra suffer greatly from reduced contrast‐to‐noise ratio (CNR).
Yashwant Kurmi, Malvika Viswanathan, Leqi Yin, You Chen, Xiaoyu Jiang, Junzhong Xu, Zhongliang Zu   +6 more
wiley   +1 more source

Projective toric varieties as fine moduli spaces of quiver representations

, 2006
This paper proves that every projective toric variety is the fine moduli space for stable representations of an appropriate bound quiver. To accomplish this, we study the quiver $Q$ with relations $R$ corresponding to the finite-dimensional algebra ...
Craw, Alastair, Smith, Gregory G.
core   +3 more sources

Fast Retrieval of Cloud Optical Depth From Polarimetry and Multi‐Spectral Imagery That Accounts for Cloud Heterogeneity Using 3D Radiative Transfer

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 3, 16 February 2026.
Abstract We present a method for retrieving cloud optical depth that applies 3D radiative transfer to utilize the combination of polarimetry and multi‐spectral imagery that is newly available from satellite missions such as the Plankton, Aerosol, Cloud, Ocean, Ecosystem (PACE) Mission. Due to the approximate spectral invariance of scattering by clouds,
Jesse Loveridge, Christine Chiu, Alexander Marshak   +2 more
wiley   +1 more source

Estimation of the GCV of Coal Using Real‐Time Plant Data

Energy Science &Engineering, Volume 14, Issue 2, Page 905-915, February 2026.
ABSTRACT Online or real‐time strategies of estimating the gross calorific value (GCV) of coal are still not fully explored in academic literature, even though both conventional and sophisticated offline methods for estimating the GCV are well described.
Lethukuthula Nokwazi Vilakazi, Daniel Madyira   +1 more
wiley   +1 more source

Remote sensing-based modeling and mapping of seasonal water quality dynamics in Vadkert Lake, Hungary

Frontiers in Environmental Science
Remote sensing has become increasingly valuable for monitoring inland water quality across space and time. However, detecting key water quality parameters (WQPs) using satellite imagery in small water bodies remains challenging.
Diaa Sheishah, Diaa Sheishah, Ahmed Mohsen, Ahmed Mohsen, Enas Abdelsamei, Enas Abdelsamei, Izabella Babcsányi, Omar Alsenjar, Gergő Magyar, Viktória Blanka Végi, Karolina Solymos, György Sipos   +11 more
doaj   +1 more source