Results 31 to 40 of about 3,216 (210)
Cathode Shape Design for Steady-State Electrochemical Machining
Algorithms, 2023 The inverse or cathode shape design problem of electrochemical machining (ECM) deals with the computation of the shape of the tool cathode required for producing a workpiece anode of a desired shape.
Jinming Lu, Ewald A. Werner
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Adjoint bi-continuous semigroups and semigroups on the space of measures [PDF]
Czechoslovak Mathematical Journal, 2011 For a given bi-continuous semigroup T on a Banach space X we define its adjoint on an appropriate closed subspace X^o of the norm dual X'. Under some abstract conditions this adjoint semigroup is again bi-continuous with respect to the weak topology (X^o,X).
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Aerodynamic Optimization Based on Continuous Adjoint Method for a Flexible Wing
International Journal of Aerospace Engineering, 2016 Aerodynamic optimization based on continuous adjoint method for a flexible wing is developed using FORTRAN 90 in the present work. Aerostructural analysis is performed on the basis of high-fidelity models with Euler equations on the aerodynamic side and ...
Zhaoke Xu, Jian Xia
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cashocs: A Computational, Adjoint-Based Shape Optimization and Optimal Control Software
SoftwareX, 2021 The solution of optimization problems constrained by partial differential equations (PDEs) plays an important role in many areas of science and industry.
Sebastian Blauth
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Neural Fields for Highly Accelerated 2D Cine Phase Contrast MRI
Advanced Science, EarlyView.ABSTRACT 2D cine phase contrast (CPC) MRI provides quantitative information on blood velocity and flow within the human vasculature. However, data acquisition is time‐consuming, motivating the reconstruction of the velocity field from undersampled measurements to reduce scan times. In this work, neural fields are proposed as a continuous spatiotemporal
Pablo Arratia +7 more
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Discrete and Continuous Adjoint-Based Aerostructural Wing Shape Optimization of a Business Jet
FluidsThis article presents single- and multi-disciplinary shape optimizations of a generic business jet wing at two transonic cruise flow conditions. The studies performed are based on two high-fidelity gradient-based optimization tools, assisted by the ...
Konstantinos Tsiakas +7 more
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Development of the adjoint of GEOS-Chem [PDF]
Atmospheric Chemistry and Physics, 2007 We present the adjoint of the global chemical transport model GEOS-Chem, focusing on the chemical and thermodynamic relationships between sulfate – ammonium – nitrate aerosols and their gas-phase precursors.
D. K. Henze, A. Hakami, J. H. Seinfeld
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Exact Discrete Stochastic Simulation With Deep‐Learning‐Scale Gradient Optimization
Advanced Science, EarlyView.A 203,796‐parameter gene regulatory network classifies handwritten digits with 98.4% accuracy using exact stochastic dynamics. The framework decouples forward simulation from backward differentiation, making continuous‐time Markov chain models compatible with deep‐learning optimization.
Jose M. G. Vilar, Leonor Saiz
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Comparison of Direct and Adjoint k and α-Eigenfunctions
Journal of Nuclear Engineering, 2021 Modal expansions based on k-eigenvalues and α-eigenvalues are commonly used in order to investigate the reactor behaviour, each with a distinct point of view: the former is related to fission generations, whereas the latter is related to time. Well-known
Vito Vitali +4 more
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Gap‐Free Information Transfer in 4D‐STEM via Fusion of Complementary Scattering Channels
Advanced Science, EarlyView.Fused Full‐Field STEM (FF‐STEM) is introduced as a 4D‐STEM imaging modality that combines direct ptychography with tilt‐corrected dark‐field reconstruction in a single acquisition. Fourier‐space fusion using Wiener‐type spectral weighting closes the low‐frequency contrast gap inherent to bright‐field methods, delivering gap‐free, dose‐efficient, near ...
Shengbo You +15 more
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