Results 91 to 100 of about 2,359,967 (297)

A Novel Simulation Approach for Damage Evolution during Tailored Forming

open access: yesAdvanced Engineering Materials, EarlyView.
Traditional damage models are struggling to accurately and efficiently simulate large‐scale three‐dimensional models with a great number of degrees of freedoms. A new gradient‐enhanced damage model based on the extended Hamilton principle can significantly reduce the computation time while ensuring mesh‐independence which is suitable to use in tailored
Fangrui Liu   +2 more
wiley   +1 more source

When are Extreme Events the better predictable, the larger they are? [PDF]

open access: yesPhys. Rev. E 77, 011108 (2008), 2008
We investigate the predictability of extreme events in time series. The focus of this work is to understand under which circumstances large events are better predictable than smaller events. Therefore we use a simple prediction algorithm based on precursory structures which are identified using the maximum likelihood principle.
arxiv  

Tempura: A General Cost Based Optimizer Framework for Incremental Data Processing (Extended Version) [PDF]

open access: yesarXiv, 2020
Incremental processing is widely-adopted in many applications, ranging from incremental view maintenance, stream computing, to recently emerging progressive data warehouse and intermittent query processing. Despite many algorithms developed on this topic, none of them can produce an incremental plan that always achieves the best performance, since the ...
arxiv  

Convergence of scaled renewal processes and a packet arrival model

open access: yes, 2003
This thesis, consisting of three papers and a summary, studies topics in the theory of stochastic processes related to long-range dependence. Much recent interest in such probabilistic models has its origin in measurements of Internet traffic data, where
Raimundas Gaigalas, I. Kaj
semanticscholar   +1 more source

A general approach to small deviation via concentration of measures

open access: yes, 2014
We provide a general approach to obtain upper bounds for small deviations $ \mathbb{P}(\Vert y \Vert \le \epsilon)$ in different norms, namely the supremum and $\beta$- H\"older norms.
Azmoodeh, Ehsan, Viitasaari, Lauri
core  

Aggregation and long memory: recent developments [PDF]

open access: yes, 2013
It is well-known that the aggregated time series might have very different properties from those of the individual series, in particular, long memory.
Leipus, Remigijus   +3 more
core   +2 more sources

Development of a Novel Processing Route for Dispersoid/Precipitation‐Strengthened High Conductive Copper Alloys by Using Metalized Nanoceramics in Additive Manufacturing

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores a process chain to produce dispersoid‐strengthened CuCr1Zr for applications requiring high strength and conductivity. Using gas‐atomized powder and copper‐plated alumina nanoparticles, additive manufacturing is performed via powder bed based additive manufacturing with green and red lasers, followed by heat treatment.
Heinrich von Lintel   +7 more
wiley   +1 more source

Martingale-type processes indexed by the real line [PDF]

open access: yesarXiv, 2010
Some classes of increment martingales, and the corresponding localized classes, are studied. An increment martingale is indexed by the real line and its increment processes are martingales. We focus primarily on the behavior as time goes to minus infinity in relation to the quadratic variation or the predictable quadratic variation, and we relate the ...
arxiv  

The Processes with Dependent Increments as Mathematical Models of the Interest Rate Processes [PDF]

open access: yes
Processes of the interest rates and other financial indexes in continuous time are usually modeled in the literature by stochastic processes with independent increments.
Medvedev, G. A.
core  

Influence of Form and Structural Features of Open‐Cell Hybrid Foam on the Remanent Magnetic Scanning

open access: yesAdvanced Engineering Materials, EarlyView.
Simulations using an equivalent model are performed to improve the understanding of remanent magnetic scanning of hybrid foam samples for coating thickness estimation. The model allows to study the influence of isolated geometrical features such as layer thickness, boundary effects, as well as effects due to the statistical nature of the foams, which ...
Bashar Ibrahim   +4 more
wiley   +1 more source

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