Results 111 to 120 of about 148,738 (317)

An Analytic Hierarchy Process Analysis: Application to Subscriber Retention Decisions in the Nigerian Mobile Telecommunications

open access: yesInternational Journal of Management and Economics, 2015
The introduction of mobile number portability (MNP) in the Nigerian telecommunications industry has brought a new challenge for mobile operators. This study investigates the use of Analytic Hierarchy Process (AHP) in customer retention decisions in the ...
Adebiyi Sulaimon Olanrewaju   +2 more
doaj   +1 more source

ICT Regulation Toolkit

open access: yes, 2004
The ICT Regulation Toolkit is a live resource for policy-makers, regulators, the telecom industry, and consumers. It provides a global overview of how telecom policy is best implemented with practical materials highlighting experience and results. In
International Telecommunication Union,
core  

Modern telecommunication networks in the Aeronautical Telecommunication Network (ATN)

open access: yes, 2006
This paper summarizes the results of a study of modern telecommunication technology in the Aeronautical Telecommunication Network. The ATN is a data communications inter‐network that provides its users a robust and reliable Air/Ground and Ground/Ground ...
Andrej Novák, Novák, Andrej
core   +1 more source

Machine Learning Accelerated Non‐Adiabatic Molecular Dynamics Elucidates Local Polarization Effects on Non‐radiative Recombination in Halide Perovskites

open access: yesAdvanced Science, EarlyView.
This work proposes and constructs the Hefei‐NAMD‐S framework based on machine learning stacked models to investigate the relationship between local polarization and non‐radiative recombination. The results indicate that, compared with A‐site local polarization, B‐site local polarization shows a more evident association with the non‐radiative ...
Bing Yang   +13 more
wiley   +1 more source

Orthodontic Materials Interacting with Fifth Generation (5G) Electromagnetic Waves

open access: yesBezmiâlem Science
Objective: Public exposure to radiofrequency (RF) fields from fifth generation (5G) and other sources is known to be below human exposure limits. The interaction of RF fields with the human body has been widely documented, with tissue heating being the ...
Banu KILIÇ   +2 more
doaj   +1 more source

Stress Accumulation Induced by Ion Exchange for Synchronous Modulation of Mode and Wavelength in Microlasers

open access: yesAdvanced Science, EarlyView.
This work demonstrates a paradigm‐shifting strategy to simultaneously achieve broadband wavelength tunability and single‐mode control within a single perovskite microwire structure. Using a facile heating‐assisted solid–solid anion‐exchange strategy, we synthesized phase‐pure CsPbClxBr3‐x microwires that exhibit the widest reported continuous lasing ...
Bingwang Yang   +7 more
wiley   +1 more source

Photoelectric‐Coupled Ferroelectric Heterojunctions for Ultrahigh NO2 Sensing With Polarization‐Memory‐Assisted Interfacial Modulation

open access: yesAdvanced Science, EarlyView.
This study demonstrates a Bi2WO6/SrBi2Ta2O9 heterojunction where light‐driven ferroelectric polarization reversal couples with persistent photoconductivity, enabling exclusive NO2 selective room‐temperature sensing. The device achieves a two‐order‐of‐magnitude sensitivity enhancement over an unpolarized device, a sub‐ppb detection limit, and robust ...
Liping Tan   +11 more
wiley   +1 more source

The Impact of Liberalizing the Telecommunication Sector in Morocco

open access: yes
The purpose of this paper is to present the major developments recorded in telecommunication sector in Morocco and assess the impact of regulating the telecommunication sector in Morocco along the European Union lines.
Achy, Lahcen
core  

Junction Physics and Architectural Paradigms in Optoelectronic Semiconductor Fibers

open access: yesAdvanced Science, EarlyView.
Optoelectronic fibers are emerging as a key platform for distributed sensing, energy harvesting, and optical communication in deformable systems. Their performance is fundamentally governed by junction formation under confined, dynamic processing conditions.
Hailiang Wang   +4 more
wiley   +1 more source

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