Results 51 to 60 of about 64,333 (291)

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti   +11 more
wiley   +1 more source

On the Compound and Generalized Poisson Distributions

open access: yesThe Annals of Mathematical Statistics, 1948
In this note we deduce several properties of the compound and generalized Poisson distributions; in particular their closure and divisibility properties. An infinite class of functions whose members are both compound and generalized Poisson distributions is exhibited, and several of the distributions of Neyman, Polya, etc. are identified.
openaire   +2 more sources

Inequalities for Multivariate Compound Poisson Distributions

open access: yesThe Annals of Probability, 1988
Let \(\{Q_ t\); \(t\geq 0\}\) be a one-parameter Poisson family. Let \({\mathcal A}=\{A:\) \(A\subseteq \{1,2,...,n\}\}\), n positive integer, and t(A) be a number associated with \(A\in {\mathcal A}\). Let \(\{Z_ A:\) \(A\in {\mathcal A}\}\) be independent random variables with \(Z_ A\) distributed according to \(Q_{t(A)}\). Define \(x=(x_ 1,...,x_ n)\
openaire   +2 more sources

Multidimensional compound Poisson distributions in free probability [PDF]

open access: yesScience China Mathematics, 2018
This is the final version of the paper, which will be appear in Sci. China Math.
An, Guimei, Gao, Mingchu
openaire   +2 more sources

Characterization of Nitinol Produced by Laser Powder Bed Fusion for Mechanical Metamaterial Applications

open access: yesAdvanced Engineering Materials, EarlyView.
Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek   +5 more
wiley   +1 more source

Variance Gamma (nonlocal) equations

open access: yesModern Stochastics: Theory and Applications, 2023
Some equations are provided for the Variance Gamma process using the definition other than that based on a time-changed Brownian motion. A new nonlocal equation is obtained involving generalized Weyl derivatives, which is true even in the drifted case ...
Fausto Colantoni
doaj   +1 more source

Phenomenological and Physically Based Modeling of Flow Stress and Strengthening Mechanism of Inconel 718

open access: yesAdvanced Engineering Materials, EarlyView.
Nickel‐based alloys are widely used in high‐temperature applications due to their excellent mechanical strength and oxidation resistance. However, properties such as high‐temperature strength and pronounced work‐hardening make them difficult to machine.
Soheil Rooein   +2 more
wiley   +1 more source

Properties of the entropic risk measure EVaR in relation to selected distributions

open access: yesModern Stochastics: Theory and Applications
Entropic Value-at-Risk (EVaR) measure is a convenient coherent risk measure. Due to certain difficulties in finding its analytical representation, it was previously calculated explicitly only for the normal distribution.
Yuliya Mishura   +3 more
doaj   +1 more source

On the consistency of jump-diffusion dynamics for FX rates under inversion [PDF]

open access: yes, 2019
In this note we investigate the consistency under inversion of jump diffusion processes in the Foreign Exchange (FX) market. In other terms, if the EUR/USD FX rate follows a given type of dynamics, under which conditions will USD/EUR follow the same type
Brigo, Damiano   +2 more
core   +2 more sources

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy