Results 111 to 120 of about 31,217 (311)

Near Optimal Linear Algebra in the Online and Sliding Window Models. [PDF]

open access: yesProc Annu Symp Found Comput Sci, 2020
Braverman V   +6 more
europepmc   +1 more source

Review and prospects of shear test of bolted rock joints

open access: yesDeep Underground Science and Engineering, EarlyView.
The laboratory shear test equipment, test method, and numerical simulation of bolted rock joints were summarized. The shortcomings and limitations of the current research were analyzed, and the research prospects were proposed. Abstract Rock bolting is a critical approach in geotechnical engineering for supporting weak rocks.
Shulin Ren   +4 more
wiley   +1 more source

Differentiated policy implementation in food safety and animal welfare policymaking

open access: yesEuropean Policy Analysis, EarlyView.
Abstract Agri‐food policies are in the midst of far‐reaching transitions, including the transformation towards sustainable production and food consumption. The European Green Deal and Farm to Fork Strategy prioritize food safety and animal welfare issues, aiming to transform food systems towards more sustainability.
Giulia Bazzan, Colette S. Vogeler
wiley   +1 more source

A ÁLGEBRA LINEAR NO BRASIL NA DÉCADA DE 1970: Um estudo esteado em livros didáticos

open access: yesRevista de História da Educação Matemática, 2020
Este trabalho teve por objetivo caracterizar as apresentações e representações dos objetos (In)dependência linear, Geradores, Base e Dimensão num espaço vetorial constantes em três livros de álgebra linear da década de 70, nos quais Guilherme de La Penha
Miguel Chaquiam   +1 more
doaj  

Randomized Linear Algebra Approaches to Estimate the Von Neumann Entropy of Density Matrices. [PDF]

open access: yesIEEE Trans Inf Theory, 2020
Kontopoulou EM   +4 more
europepmc   +1 more source

Improving the Characteristics of the Direct FOC Strategy in DFIG‐Based Wind Turbine Systems Using FOIDD and FOPD Controllers

open access: yesEnergy Science &Engineering, EarlyView.
This study presents a new control strategy for doubly fed induction generator (DFIG) wind turbine systems to overcome the limitations of traditional direct field control using proportional‐integral (DFOC‐PI) regulators, which are sensitive to coefficient changes and lead to low power quality.
Hamza Gasmi   +5 more
wiley   +1 more source

Boundary Layer Meshing and Wall Functions Selection for Numerical Simulation of Solid–Liquid Two‐Phase Flow

open access: yesEnergy Science &Engineering, EarlyView.
This figure illustrates the optimal near‐wall treatment schemes (first‐layer height and wall function type) for solid–liquid two‐phase CFD of suspended sediment, which are correlated with particle size and flow velocity. ABSTRACT Near‐wall treatment (boundary‐layer meshing and wall functions) is a major uncertainty in solid–liquid two‐phase CFD of ...
Zichao Zhang   +4 more
wiley   +1 more source

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