Results 81 to 90 of about 65,317,424 (205)
The mysterious story of square ice, piles of cubes, and bijections. [PDF]
Proc Natl Acad Sci U S A, 2020 Fischer I, Konvalinka M.
europepmc +1 more source
Coverage‐based rarefaction fails to quantify relative species richness
Oikos, EarlyView.Coverage‐based rarefaction (CBR) is a high‐profile tool for assessing biodiversity that provides relative species richness estimates by leveraging the Good‐Turing index u to interpolate. In contrast to alternatives such as the Shannon and Simpson indices, CBR's main appeal is providing values in units of species. CBR is tested against a series of other
John Alroy
wiley +1 more source
Supervised Protein Structure Classification Using Topological Persistence With DeltaFold
Proteins: Structure, Function, and Bioinformatics, EarlyView.ABSTRACT Recent advances in protein structure prediction have considerably increased the number of available structures, underscoring the need for scalable and accurate methods to compare and classify this huge amount of data. Current approaches based on sequence alignment or structural superposition often lack sensitivity and/or are computationally ...
Joseph Nardin‐Gennequin +3 more
wiley +1 more source
New views of some invariants associated with the Cartesian 2D velocity gradient tensor
Quarterly Journal of the Royal Meteorological Society, EarlyView.Vorticity and divergence of horizontal flow are fundamental quantities in meteorology; both are linear functions of the four elements of the 2D velocity gradient tensor and both are formally unchanged under coordinate rotation. We explore four quadratic functions of the elements that are geometrically invariant in this sense, finding some novel ...
I. Roulstone, S. A. Clough, A. A. White
wiley +1 more source
PToPI: A Comprehensive Review, Analysis, and Knowledge Representation of Binary Classification Performance Measures/Metrics. [PDF]
SN Comput Sci, 2023 Canbek G +2 more
europepmc +1 more source
Noncrossed product division algebras with a Baer ordering
, 1995 Let n | m n|m be positive integers with the same prime factors, such that p 3 | n {p^3}|n ...
Patrick J. Morandi, B. A. Sethuraman
core +1 more source
A Rank‐Based CUSUM Monitoring Scheme for Time Between Events and Amplitude Data
Quality and Reliability Engineering International, EarlyView.ABSTRACT Monitoring time between events and amplitude (TBEA) data is critical in many applications, particularly in manufacturing, reliability engineering, and service operations. Yet, most existing TBEA control charts focus on a single quality characteristic and are typically developed under restrictive distributional assumptions.
Muhammad Arslan +5 more
wiley +1 more source
Central Polynomials For Z2-graded Algebras And For Algebras With Involution
, 2015 We describe the Z2-graded central polynomials for the matrix algebra of order two, M2 (K), and for the algebras M1, 1 (E) and E ⊗ E over an infinite field K, char K ≠ 2.
Pereira Brandao Jr. A., Koshlukov P.
core +1 more source
Sliding Mode Control in Aerospace Applications: A Survey
International Journal of Robust and Nonlinear Control, EarlyView.ABSTRACT Sliding mode control (SMC) enjoys robustness to matched and unmatched (in the case of minimum phase input‐output dynamics) bounded perturbations, and finite time convergence. Second‐order and higher‐order sliding mode control systems (2‐SMC/HOSMC) retain all the advantages of sliding mode control, but in addition can be applied to systems of ...
Yuri Shtessel, Christopher Edwards
wiley +1 more source
International Journal of Robust and Nonlinear Control, EarlyView.ABSTRACT The increasing integration of distributed energy resources demands enhanced coordination between transmission system operators (TSOs) and distribution system operators (DSOs) to maintain reliable grid operation. Traditional approaches rely on hierarchical or distributed optimization schemes for power flow management, but these methods either ...
Janis Adamek +4 more
wiley +1 more source