Zobrazeno 1 - 10
of 2 114
pro vyhledávání: '"P, Heister"'
The paper introduces an adaptive version of the stabilized Trace Finite Element Method (TraceFEM) designed to solve low-regularity elliptic problems on level-set surfaces using a shape-regular bulk mesh in the embedding space. Two stabilization varia
Externí odkaz:
http://arxiv.org/abs/2310.03089
Autor:
S. R. Heister, V. V. Kirychenka
Publikováno v:
Doklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, Vol 22, Iss 5, Pp 53-61 (2024)
The inverse antenna aperture synthesis technology used to construct a radar image of an aircraft’s propellers has shown high efficiency. The radar image allows to visualize the blades of the rotors included in the functional group (traction rotors
Externí odkaz:
https://doaj.org/article/6bb2c4e935344d2abcf0aa331d862241
Autor:
S. R. Heister, V. V. Kirichenko
Publikováno v:
Известия высших учебных заведений России: Радиоэлектроника, Vol 27, Iss 3, Pp 68-80 (2024)
Introduction. Radar images of aircraft propellers can significantly improve the quality of their recognition and protection against simulating interference. Such images can be obtained using algorithms based on an inverse antenna aperture synthesis.
Externí odkaz:
https://doaj.org/article/3d8ef756d0e64890bcbc27f04162ec42
Publikováno v:
Lifestyle Genomics, Vol 17, Iss 1, Pp 102-112 (2024)
Background: Phenylketonuria (PKU) is an autosomal recessive genetic condition that results in reduced enzymatic functioning within the phenylalanine hydroxylase (PAH) pathway, which is involved in the metabolism of phenylalanine (Phe) into tyrosine (
Externí odkaz:
https://doaj.org/article/0e096c40e37947debe8a0ee8ed06a7b9
Autor:
S. R. Heister, Huang Qianlan
Publikováno v:
Doklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, Vol 22, Iss 3, Pp 52-60 (2024)
The creation of DRFM (Digital Radio Frequency Memory) technology is a revolutionary step in the development of simulating interference techniques. The technology made it possible to transform the received signal with high quality, make the necessary
Externí odkaz:
https://doaj.org/article/1a20b1f0c18a4cffbeba1a8a7608df96
Autor:
S. R. Heister, Huang Qianlan
Publikováno v:
Doklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, Vol 21, Iss 6, Pp 53-60 (2024)
The confrontation between radar stations and radio electronic countermeasure systems leads to constant advancements on both sides as electronics continue to develop. This multifaceted confrontation determines the success of each side primarily based
Externí odkaz:
https://doaj.org/article/2191991ffd134d9aa59b06c4b1f024bc
This work studies three multigrid variants for matrix-free finite-element computations on locally refined meshes: geometric local smoothing, geometric global coarsening, and polynomial global coarsening. We have integrated the algorithms into the sam
Externí odkaz:
http://arxiv.org/abs/2203.12292
In this work, we consider fracture propagation in nearly incompressible and (fully) incompressible materials using a phase-field formulation. We use a mixed form of the elasticity equation to overcome volume locking effects and develop a robust, nonl
Externí odkaz:
http://arxiv.org/abs/2202.04191
Autor:
Anja Schork, Marie-Luise Eberbach, Ferruh Artunc, Bernhard N. Bohnert, Felix Eisinger, David J. Heister, Dorothea Vosseler, Silvio Nadalin, Andreas L. Birkenfeld, Nils Heyne, Martina Guthoff
Publikováno v:
Transplant International, Vol 37 (2024)
In this longitudinal observational study, we measured urinary glucose concentration, body composition and volume status (bioimpedance spectroscopy) and plasma renin and aldosterone concentrations in n = 22 kidney transplant recipients (KTRs) initiati
Externí odkaz:
https://doaj.org/article/ad9897e363af4da9a42d6600cee27675
Publikováno v:
Applications in Energy and Combustion Science, Vol 18, Iss , Pp 100264- (2024)
Rotating detonation engines (RDEs) are the subject of research in the combustion community due to the prospects of enhanced thermal efficiency and power density when compared to current deflagrative-based aerospace combustors. Many current simulation
Externí odkaz:
https://doaj.org/article/c8d0c93be5234ebe85f3ee10dace96b6