Results 31 to 40 of about 1,397,215 (290)

Adaptive 2D IGA boundary element methods

open access: yes, 2015
We derive and discuss a posteriori error estimators for Galerkin and collocation IGA boundary element methods for weakly-singular integral equations of the first-kind in 2D.
Feischl, Michael   +3 more
core   +2 more sources

A Galerkin boundary element method for high frequency scattering by convex polygons [PDF]

open access: yes, 2007
In this paper we consider the problem of time-harmonic acoustic scattering in two dimensions by convex polygons. Standard boundary or finite element methods for acoustic scattering problems have a computational cost that grows at least linearly as a ...
Abboud T.   +6 more
core   +1 more source

Coupling of Finite Element and Boundary Element Methods for Structural Analysis of Shear Wall - Frame Building

open access: yesJurnal Teknik Sipil, 2010
In this study a method to couple the finite element method (FEM) and the boundary element method (BEM) for solving structural analysis problems is investigated and implemented.
Made Suarjana , Ari Wibowo
doaj   +1 more source

Predicting Chronicity in Children and Adolescents With Newly Diagnosed Immune Thrombocytopenia at the Timepoint of Diagnosis Using Machine Learning‐Based Approaches

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Objectives To identify predictors of chronic ITP (cITP) and to develop a model based on several machine learning (ML) methods to estimate the individual risk of chronicity at the timepoint of diagnosis. Methods We analyzed a longitudinal cohort of 944 children enrolled in the Intercontinental Cooperative immune thrombocytopenia (ITP) Study ...
Severin Kasser   +6 more
wiley   +1 more source

Predicting the Future Burden of Renal Replacement Therapy in Türkiye Using National Registry Data and Comparative Modeling Approaches

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic kidney disease is a growing public health problem worldwide, and the number of patients requiring renal replacement therapy is steadily increasing. Türkiye has experienced a similar rise in both the incidence and prevalence of renal replacement therapy over the past decades; however, national‐level projections of future ...
Arzu Akgül   +2 more
wiley   +1 more source

Weak imposition of Signorini boundary conditions on the boundary element method [PDF]

open access: yes, 2020
We derive and analyse a boundary element formulation for boundary conditions involving inequalities. In particular, we focus on Signorini contact conditions.
Burman, Erik   +2 more
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Cis-regulatory modes of Ultrabithorax inactivation in butterfly forewings

open access: yeseLife
Hox gene clusters encode transcription factors that drive regional specialization during animal development: for example the Hox factor Ubx is expressed in the insect metathoracic (T3) wing appendages and differentiates them from T2 mesothoracic ...
Amruta Tendolkar   +6 more
doaj   +1 more source

Acoustic Noise Computation of Electrical Motors Using the Boundary Element Method

open access: yesEnergies, 2020
This paper presents a numerical method and computational results for acoustic noise of electromagnetic origin generated by an induction motor. The computation of noise incorporates three levels of numerical calculation steps, combining both the finite ...
Sabin Sathyan   +2 more
doaj   +1 more source

A Typology of Stranded Phonologically Weak Elements

open access: yesStudies in Polish Linguistics, 2023
The paper presents a unified account of a number of superficially very different cases from Japanese, Serbo-Croatian, German, and Dutch where a phonologically weak element is stranded without a host.
Željko Bošković
doaj   +1 more source

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