Results 171 to 180 of about 1,726,318 (276)

Optimization of 3D‐Printed Structured Packings—Current State and Future Developments

Chemie Ingenieur Technik, Volume 98, Issue 11, Page 683-692, November 2026.
This paper gives an overview about structured packing development for distillation, surveying heuristic development cycles, computational fluid dynamics simulations, and additive manufacturing techniques. The emerging application of shape optimization to improve packings is emphasized, and its benefits, impact, and limitations are discussed.
Dennis Stucke, Sebastian Blauth, Christian Leithäuser, Thomas Grützner   +3 more
wiley   +1 more source

Intrinsic Quantization of Linear Hamiltonian Systems. [PDF]

Entropy (Basel)
Accardi L, Pandiscia C.
europepmc   +1 more source

Grothendieck and ℓ∞$\ell _\infty$‐Grothendieck Subspaces of ℓ∞$\ell _\infty$

Mathematische Nachrichten, Volume 299, Issue 11, Page 3574-3581, November 2026.
ABSTRACT Let c=2ℵ0$\mathfrak {c}=2^{\aleph _0}$. We prove that ℓ∞$\ell _\infty$ contains 2c$2^{\mathfrak {c}}$ pairwise non‐isomorphic non‐reflexive Grothendieck subspaces. They may all be chosen to contain the canonical copy of c0$c_0$ and to have an infinite‐dimensional reflexive quotient. This is optimal and answers Problem 24 of González and Kania [
Manuel González, Tomasz Kania
wiley   +1 more source

Non-Parametric Kinematic Optimization of Flapping Foil Propulsion Using a Discrete Adjoint Method. [PDF]

Biomimetics (Basel)
Yin Z, Zhou C, Wang X, Liao X, Wang J.
europepmc   +1 more source

On the Nonnegative Rank of Positive Operators

Mathematische Nachrichten, Volume 299, Issue 11, Page 3689-3704, November 2026.
ABSTRACT In this paper, we introduce the concept of a nonnegative rank of a positive operator T:X→Y$T: X\rightarrow Y$ between ordered vector spaces. In the case of nonnegative matrices, our definition agrees with the standard definition of a nonnegative rank.
Roman Drnovšek, Marko Kandić
wiley   +1 more source

Tutorial Review of N-Path Filters and Their Time-Domain Interpretation. [PDF]

Micromachines (Basel)
Feng X, Lin D, Zhao Y, Xiong J, Liu W, Zhong Y, Zhuo C, Yin Y.   +7 more
europepmc   +1 more source

MRpro: Open Framework for Model‐Based, Learned, and Quantitative MR Imaging—Application to Low‐Field MRI

NMR in Biomedicine, Volume 39, Issue 11, November 2026.
MRpro is an open‐source PyTorch framework for MR image reconstruction and quantitative parameter estimation. Its modular design combines standardized data handling, composable operators, ready‐to‐use algorithms, and deep‐learning components to support reproducible workflows for conventional and low‐field MRI.
Felix Frederik Zimmermann, Patrick Schuenke, Christoph S. Aigner, Bill A. Bernhardt, Mara Guastini, Johannes Hammacher, Helge Herthum, Noah Jaitner, Andreas Kofler, Leonid Lunin, Stefan Martin, Catarina Redshaw Kranich, Jakob Schattenfroh, David Schote, Yanglei Wu, Christoph Kolbitsch   +15 more
wiley   +1 more source

Quaternionic response geometry for proteins: toward a noncommutative theory of ordered deformations. [PDF]

Theory Biosci
Chen X, Kam CF, Li Y, Medina-Ortiz D, Damour C, Chabriat JP, Miranville A, Bessafi M, Cadet F.   +8 more
europepmc   +1 more source

Physics‐Informed Neural Networks as Differentiable Surrogates for 4D‐Variational Data Assimilation

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 11, November 2026.
Abstract Biogeochemical forecasting requires state estimation methods that accommodate sparse observations, nonlinear dynamics, and discontinuous ecological processes. Four‐dimensional variational data assimilation addresses this challenge but depends on tangent‐linear and adjoint models that are costly to derive and maintain alongside evolving forward
Kevin Egan, Brian Powell
wiley   +1 more source

Quantum Cosmology in Krylov Space: Complexity and Entropy. [PDF]

Entropy (Basel)
Motaharfar M, Siebersma MR, Singh P.
europepmc   +1 more source