Results 51 to 60 of about 134,549 (310)

Properties of a Random Bipartite Geometric Associator Graph Inspired by Vehicular Networks

Entropy, 2023
We consider a point process (PP) generated by superimposing an independent Poisson point process (PPP) on each line of a 2D Poisson line process (PLP). Termed PLP-PPP, this PP is suitable for modeling networks formed on an irregular collection of lines ...
Kaushlendra Pandey, Abhishek K. Gupta, Harpreet S. Dhillon, Kanaka Raju Perumalla   +3 more
doaj   +1 more source

High Health Care Utilization Preceding Diagnosis With Juvenile Idiopathic Arthritis

Arthritis Care &Research, EarlyView.
Objective Although early diagnosis improves long‐term outcomes, patients with juvenile idiopathic arthritis (JIA) often experience prolonged, circuitous paths to diagnosis. To inform diagnostic improvement, we sought to characterize health care utilization in the year preceding diagnosis. Methods We identified 10,021 patients with an incident diagnosis
Anna Costello, Rui Xiao, Xuemei Zhang, Jahan Jazayeri, Irit R. Rasooly, Pamela F. Weiss   +5 more
wiley   +1 more source

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

Advanced 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, Finn‐Lennard Janthur, Selina Raumel, Sascha Jan Zimmermann, Sarah Seffer, René Gustus, Sebastian Herbst, Marc C. Wurz, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Florian Nürnberger   +11 more
wiley   +1 more source

Assessment of Surveillance Capacity for Low Airspace and High Density Oriented UAT2 Mode ADS‑B Receiver Equipment

Nanjing Hangkong Hangtian Daxue Xuebao
Since future universal access transceiver 2 （UAT2） mode automatic dependent surveillance-broadcast （ADS-B） devices for low-altitude aircraft surveillance would face overlapping messages in high-traffic scenarios， this study combines probabilistic ...
TANG Xinmin, FENG Wenyuan, GUAN Xiangmin
doaj   +1 more source

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

Advanced 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, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Linear Prediction of Sum of Two Poisson Process

Ibn Al-Haitham Journal for Pure and Applied Sciences, 2017
Our goal from this work is to find the linear prediction of the sum of two Poisson process ) ( ) ( ) ( t Y t X t Z + = at the future time 0 ), ( ≥ + τ τ t Z and that is when we know the values of ) (t Z in the past time and the correlation ...
S. H. Raheem
doaj  

Pricing Compound and Extendible Options under Mixed Fractional Brownian Motion with Jumps

Axioms, 2019
This study deals with the problem of pricing compound options when the underlying asset follows a mixed fractional Brownian motion with jumps. An analytic formula for compound options is derived under the risk neutral measure.
Foad Shokrollahi
doaj   +1 more source

Modelling count data with overdispersion and spatial effects [PDF]

, 2005
In this paper we consider regression models for count data allowing for overdispersion in a Bayesian framework. Besides the inclusion of covariates, spatial effects are incorporated and modelled using a proper Gaussian conditional autoregressive prior ...
Gschlößl, Susanne, Czado, Claudia
core   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Mean and Variance Modeling of Under-Dispersed and Over-Dispersed Grouped Binary Data

Journal of Statistical Software, 2019
This article describes the R package BinaryEPPM and its use in determining maximum likelihood estimates of the parameters of extended Poisson process models for grouped binary data.
David M. Smith, Malcolm J. Faddy
doaj   +1 more source