Results 61 to 70 of about 72,154 (253)

On bent and hyper-bent functions [PDF]

open access: yes, 2012
Bent functions are Boolean functions which have maximum possible nonlinearity i.e. maximal distance to the set of affine functions. They were introduced by Rothaus in 1976. In the last two decades, they have been studied widely due to their interesting combinatorial properties and their applications in cryptography.
openaire   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

A Characterization of Binary Bent Functions

open access: yesJournal of Combinatorial Theory, Series A, 1996
Bent functions are Boolean functions used in cryptography. They can be defined as those functions that reach the maximum Hamming distance to the set of all affine functions defined on \(V=GF(2)^n\). An alternative definition uses the property of a bent function \(f\) that the Fourier coefficients of \(F:x\mapsto (-1)^{f(x)}\) are \(\pm1\) only (or ...
Claude Carlet, Philippe Guillot
openaire   +1 more source

Generalized bent functions and their properties

open access: yes, 1985
Jet Jqm denote the set of m-tuples over the integers modulo q and set i=−1, w = ei(2πq). As an extension of Rothaus' notion of a bent function, a function f, f: Jqm → Jq1 is called bent if all the Fourier coefficients of wf have unit magnitude.
Kumar, P. V.   +5 more
core   +1 more source

Multimodal Data‐Driven Microstructure Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang   +4 more
wiley   +1 more source

Microstructure‐Controlled Crack Propagation and Fracture Resistance in MoSiBTiC Alloy Revealed by Multiscale Extended Finite Element Method Modeling

open access: yesAdvanced Engineering Materials, EarlyView.
A two‐dimensional multiscale finite element analysis framework was established for the first‐generation MoSiBTiC alloy, and the mechanical and fracture‐related parameters of the constituent phases were calibrated through experiments and simulations. The framework provides a basis for analyzing crack propagation behavior in its complex microstructure ...
Junfeng Du   +4 more
wiley   +1 more source

A construction of bent functions from plateaued functions [PDF]

open access: yes, 2011
In this presentation, a technique for constructing bent functions from plateaued functions is introduced and analysed. This generalizes earlier techniques for constructing bent from near-bent functions. Using this construction, we obtain a big variety of
Meidl, Wilfried, Çeşmelioğlu, Ayça
core   +1 more source

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak   +3 more
wiley   +1 more source

On the second derivative of some kinds of Bent functions

open access: yes, 2014
Bent function plays an important role in cryptography. It opposes an optimum resistance to linear and differential cryptanalysis. We point out that for some kinds of bent functions, such as Maiorana-McFarland functions and functions with algebraic degree
Xinyang Zhang   +3 more
core   +1 more source

Fatigue Crack Initiation and Growth in Nanocrystalline Ni at Multiple Length‐Scales

open access: yesAdvanced Engineering Materials, EarlyView.
Overview of miniaturized in situ SEM fatigue setup and resultant fatigue crack growth data for nanocrystalline Ni. The presented study focuses on the analysis of fatigue crack growth rate (FCGR) in focused ion beam‐notched microcantilevers prepared from nanocrystalline (NC) Ni as a model material.
Igor Moravcik   +7 more
wiley   +1 more source

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