Results 51 to 60 of about 364,600 (300)

0331 Writing a Biography of a Missing Character: Friedrich Weinwurm (1885–1942?)

open access: yesRIHA Journal
This article introduces the life and work of Friedrich Weinwurm (1895–1942?), an architect who played a pivotal role in shaping interwar architecture in Slovakia but has remained largely absent from scholarly discourse.
Henrieta Moravčíková
doaj   +1 more source

On the Discontinuous Galerkin Method for Friedrichs Systems in Graph Spaces [PDF]

open access: yes, 2006
Solutions of Friedrichs systems are in general not of Sobolev regularity and may possess discontinuities along the characteristics of the differential operator. We state a setting in which the well-posedness of Friedrichs systems on polyhedral domains is ensured, while still allowing changes in the inertial type of the boundary.
openaire   +3 more sources

Artificial Intelligence in Systemic Sclerosis: Clinical applications, challenges, and future directions

open access: yesArthritis Care &Research, Accepted Article.
Systemic sclerosis (SSc) is a rare autoimmune disease defined by immune dysregulation, vasculopathy, and progressive fibrosis of the skin and internal organs. Despite advances in care, major complications such as interstitial lung disease (ILD) and myocardial involvement remain the leading causes of morbidity and mortality.
Cristiana Sieiro Santos   +2 more
wiley   +1 more source

A Compact Unconditionally Stable Method for Time-Domain Maxwell's Equations

open access: yesInternational Journal of Antennas and Propagation, 2013
Higher order unconditionally stable methods are effective ways for simulating field behaviors of electromagnetic problems since they are free of Courant-Friedrich-Levy conditions. The development of accurate schemes with less computational expenditure is
Zhuo Su, Yongqin Yang, Yunliang Long
doaj   +1 more source

Markov properties of high frequency exchange rate data

open access: yes, 2001
We present a stochastic analysis of a data set consisiting of 10^6 quotes of the US Doller - German Mark exchange rate. Evidence is given that the price changes x(tau) upon different delay times tau can be described as a Markov process evolving in tau ...
Amblard   +30 more
core   +1 more source

Discontinuous Galerkin methods for Friedrichs systems with irregular solutions [PDF]

open access: yes, 2004
This work is concerned with the numerical solution of Friedrichs systems by discontinuous Galerkin finite element methods (DGFEMs). Friedrichs systems are boundary value problems with symmetric, positive, linear first-order partial differential operators and allow the unified treatment of a wide range of elliptic, parabolic, hyperbolic and mixed-type ...
openaire   +2 more sources

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

open access: yesAdvanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin   +4 more
wiley   +1 more source

Global Affinities: The Natural Method and Anomalous Plants in the Nineteenth Century

open access: yesHoST, 2021
Approaching from an analysis of the work of Robert Brown (1773-1858) and Friedrich Welwitsch (1806–1872) on Rafflesia and Welwitschia, this article explores how the “natural method” became a tool for understanding extra-European flora in the nineteenth ...
Kury Lorelai, Albuquerque Sara
doaj   +1 more source

Finite sampling interval effects in Kramers-Moyal analysis

open access: yes, 2009
Large sampling intervals can affect reconstruction of Kramers-Moyal coefficients from data. A new method, which is direct, non-stochastic and exact up to numerical accuracy, can estimate these finite-time effects.
Burgess   +26 more
core   +1 more source

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann   +3 more
wiley   +1 more source

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