Results 91 to 100 of about 220,031 (271)

Telecommunication Network Competition: An Equilibrium Analysis [PDF]

The paper analyzes calling party pays access pricing policies in a General Equilibrium two ways access charge model with consumers that choose between different telecommunication providers, and benefit from making calls to other consumers and from the ...
Ricardo Raineri
core  

Conformal Reconfigurable Intelligent Surfaces: A Cylindrical Geometry Perspective

Advanced Electronic Materials, EarlyView.
Cylindrical reconfigurable intelligent surfaces are explored for low‐complexity beam steering using one‐bit meta‐atoms. A multi‐level modeling approach, including optimization‐based synthesis, demonstrates that even minimal hardware can support directive scattering.
Filippo Pepe, Ivan Iudice, Giuseppe Castaldi, Marco Di Renzo, Vincenzo Galdi   +4 more
wiley   +1 more source

Terahertz filters based on subwavelength polymer waveguide

Results in Physics, 2019
Manipulation of terahertz (THz) waves is one of the key processes in compact and robust THz systems, where functional waveguide devices are in huge demand.
Jin Yuan, Tigang Ning, Hiasu Li, Li Pei, Jing Li, Jingjing Zheng, Lei Wan   +6 more
doaj   +1 more source

Toward Reliable Metal Halide Perovskite FETs: From Electronic Structure and Device Physics to Stability and Performance Engineering

Advanced Electronic Materials, EarlyView.
Metal halide perovskite field‐effect transistors (PeFETs) offer great promise for flexible, low‐cost, and high‐performance due to their excellent charge carrier properties. However, challenges like ion migration, hysteresis, and instability limit their performance.
Georgios Chatzigiannakis, Anastasia Soultati, Leonidas C. Palilis, Ermioni Polydorou, Konstantinos Davazoglou, Petros‐Panagis Filippatos, Goutham Raj Perumallapelli, Ravindra Naik Bukke, Abd. Rashid bin Mohd Yusoff, Ilhwan Ryu, Peng Gao, Alexander Chroneos, Mohammad Khaja Nazeeruddin, Maria Vasilopoulou   +13 more
wiley   +1 more source

Modeling optimization design and amplification characteristics of O-band irregular Bragg bismuth-doped fiber amplifier

Results in Physics
In recent years, O-band bismuth-doped fiber amplifier (BDFA) have been rapidly developed due to the fluorescence properties of bismuth-doped glass in the near-infrared (NIR) band, while there are still few studies on bismuth-doped fibers (BDF) with large
Dingchen Wang, Li Pei, Jingjing Zheng, Jianshuai Wang, Wenxuan Xu, Jing Li, Tigang Ning   +6 more
doaj   +1 more source

Entry in Telecommunication: Customer Loyalty, Price Sensitivity and Access Prices [PDF]

The purpose of this article is to investigate the prospects for entry into an existing network in the telecommunication industry, and how public policy may promote a more competitive outcome. We apply a model that captures the fact that the incumbent has
Lommerud, Kjell Erik, Sørgard, Lars
core  

Asymmetric Wavelength-Selective Directional Couplers as Fractional-Order Optical Differentiators

IEEE Access, 2019
In this paper, the asymmetric wavelength-selective directional coupler (DC) is designed as a fractional-order optical differentiator. It is shown that the order of the optical differentiator is determined by the coupling coefficient and the propagation ...
Ting-Ting Yan, Wen-Hua Ren, You-Chao Jiang   +2 more
doaj   +1 more source

Estimation of network externalities and critical mass in the mobile telephone market: a panel data analysis of the OECD countries [PDF]

Network Externalities, Mobile Telecommunication, Critical ...
Laura Rinaldi
core  

Multi-service management in a multi-provider environment

, 1995
As the spread of digital networks makes access to data communications globally available, the interest of communication service providers is switching away from the provision of these bearer networks and towards the provision of the value added services ...
Lewis, David, Tiropanis, Thanassis
core   +1 more source

A Physics Constrained Machine Learning Pipeline for Young's Modulus Prediction in Multimaterial Hyperelastic Cylinders Guided by Contact Mechanics

Advanced Intelligent Discovery, EarlyView.
A physics‐guided machine learning framework estimates Young's modulus in multilayered multimaterial hyperelastic cylinders using contact mechanics. A semiempirical stiffness law is embedded into a custom neural network, ensuring physically consistent predictions. Validation against experimental and numerical data on C.
Christoforos Rekatsinas, Panagiotis Krokidas, Vasileios Vavourakis, Clara Essmann, George Giannakopoulos   +4 more
wiley   +1 more source