Results 91 to 100 of about 1,106,379 (297)

Influence of Geometric Design on Mechanical Performance of Auxetic Metastructure

Advanced Engineering Materials, EarlyView.
Strategic geometric reinforcement transforms auxetic performance. This study evaluates 3D‐printed arrowhead metastructures, revealing that a modified design with local ring reinforcement suppresses premature failure to achieve superior energy absorption and structural efficiency.
Muhammad Gulzari, Supharoek Sornsomrit, Muhammad Ayaz Akbar, Stephan Rudykh   +3 more
wiley   +1 more source

Directional Handover Analysis with Stochastic Petri Net and Poisson Point Process in Heterogeneous Networks

Mathematics
Handover is crucial for ensuring seamless connectivity in heterogeneous networks (HetNet) by enabling user equipment (UE) to switch its connection link between cells based on signal conditions.
Zhiyi Zhu, Junjun Zheng, Eiji Takimoto, Patrick Finnerty, Chikara Ohta   +4 more
doaj   +1 more source

Uplink Interference Management for Hetnets Stressed by Clustered Wide-Band Jammers

IEEE Access, 2019
In heterogeneous cellular networks (HetNets), small base stations (SBSs) are overlaid in the coverage region of a macro base station (MBS) to improve coverage and spectral efficiency. However, the performance of HetNets is significantly degraded by inter-
Fazal Muhammad, Muhammad Sajid Haroon, Ziaul Haq Abbas, Ghulam Abbas, Sunghwan Kim   +4 more
doaj   +1 more source

Precipitation Simulations of the O‐Phase in Ti2AlNb Alloys Processed by Laser Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Simulated and experimental evolution of the O‐phase volume fraction during postprocessing of a Ti‐21Al‐25Nb (at.%) alloy processed by laser powder bed fusion. With results of sensitivity to input parameters from a thorough and quantified analysis, the interfacial energy matrix/precipitate is the most relevant input parameter for the simulation of the O‐
Silvana Tumminello, Joachim Gussone, Suzana G. Fries, Marcus Rackel, Andreas Stark, Norbert Schell, Jan Haubrich, Guillermo Requena   +7 more
wiley   +1 more source

Asymptotic Inference for a Change-Point Poisson Process

The Annals of Statistics, 1986
Easily implemented asymptotic off-line procedures for the change-point Poisson process with \(\lambda\) (t), the intensity at time t, equal to \(\lambda_ 1\) if \(t\leq \tau\) and to \(\lambda_ 2\) if \(t>\tau\), are developed. They may also be applied to a problem of estimation of the location of a discontinuity in density discussed by \textit{H ...
Akman, V. E., Raftery, A. E.
openaire   +3 more sources

Experimental Characterization of Mycelium‐Based Composites Under Multiple Loading Conditions

Advanced Engineering Materials, EarlyView.
This study examines the mechanical response of mycelium‐based composites under compression, shear, and tension using mechanical testing and imaging methods. The comparison between unpressed and hot‐pressed specimens shows that hot pressing is associated with higher compression and shear stiffnesses.
Shaghayegh Elahi, Kimiya Tajik, Harvey Shaw, Matti Isakov, Sami Pajunen, Lauri Rautkari   +5 more
wiley   +1 more source

Compatibility of Methacrylate Based Resins Controls Interfacial Failure and Toughness in 3D‐Printed Multimaterial Composites

Advanced Engineering Materials, EarlyView.
This work shows that the mechanical performance of multimaterial digital light processing (DLP) printed thermoset composites is governed by resin compatibility and interfacial design rather than spatial patterning alone. Brittle and ductile resin combinations produced premature interfacial failure, while graded interfaces and mechanically compatible ...
Ahmed M. H. Ibrahim, Li Meng, Ahmad R. Najafi, Nicolas J. Alvarez   +3 more
wiley   +1 more source

A numerical method for computing interval distributions for an inhomogeneous Poisson point process modified by random dead times. [PDF]

Biol Cybern, 2021
Peterson AJ.
europepmc   +1 more source

Aerial-Terrestrial Heterogeneous Networks for Urban Air Mobility: A Performance Analysis

IEEE Open Journal of Vehicular Technology
Urban air mobility (UAM) is increasingly capturing the attention of researchers and industry experts, as it holds the promise of providing faster and more economical solutions for urban commuting.
Abdullah Abu Zaid, Baha Eddine Youcef Belmekki, Mohamed-Slim Alouini   +2 more
doaj   +1 more source

Experimental and Numerical Modal Analysis of Composite Sandwich Structures Using Surfboards as Model Systems

Advanced Engineering Materials, EarlyView.
This article presents an experimental and numerical modal investigation of composite sandwich structures using surfboards as model systems. By comparing different core materials and reinforcement strategies, the study demonstrates how local stiffeners influence vibrational response and introduce characteristic modal features, highlighting modal ...
Brett Connellan, Luca Lomazzi, Mathis Mercier, Kara Stark, Marc in het Panhuis   +4 more
wiley   +1 more source