Results 71 to 80 of about 622,804 (338)
Advanced Materials, EarlyView.This study reports the first discovery of intrinsic mechanoluminescence in undoped AlN crystals, accompanied by pronounced photoluminescence and persistent luminescence. It further demonstrates a defect‐emission–driven multifunctional optical sensing platform for force, pressure, and temperature detection, achieving exceptional sensitivities.
Teng Zheng +11 more
wiley +1 more source
The Economic Impact of Telecommunications Diffusion on UK Productivity Growth [PDF]
This paper investigates the relationship between telecommunications infrastructure competition, investment and productivity. Using econometric modelling and input-output economics, the analysis examines and measures the extent to which telecommunications
Lisa Correa
core
Advanced Materials, EarlyView.This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau +9 more
wiley +1 more source
Communications, 2014 Communication is very important for people. Means of communication are constantly increasing and new forms, and ways of communication are developing because of technological innovations.
Anna Krizanova +2 more
doaj +1 more source
Foreign direct investment in the Indian telecommunications sector [PDF]
This paper will examine the current status of foreign direct investment (FDI) in the Indian telecommunications sector and the issues facing foreign companies seeking to invest in the Indian telecommunications sector.
Green, Keith
core +1 more source
Giant Berry‐phase‐Driven X‐Ray Beam Translations in Strain‐Engineered Semiconductor Crystals
Advanced Materials, EarlyView.Due to the Berry‐phase effect, X‐rays propagating in deformed crystals undergo large translations, interesting for X‐ray optics applications. Here, the lattice expansion observed upon H irradiation of dilute‐nitride semiconductors is exploited to engineer the deformation landscape of selectively hydrogenated GaAsN epilayers.
Marco Felici +9 more
wiley +1 more source
Design of an Innovative Business Model for Mobile Virtual Network Operators
Kvalita Inovácia Prosperita, 2016 Purpose: The article studies a possible innovative business model for sustainable competitive advantage in current communication technologies. Methodology/Approach: This ethnographic approach consists of contextual interviews with company managers and ...
Miroslav Špaček, Emil Vacík
doaj +1 more source
Advanced Materials, EarlyView.The new Cu‐containing MOF (Me2NH2)(CuICl2)@[Cu4(INA)4Cl2O]·1.5dmf (3) contains a cation and an anion as guests and shows UV‐near‐mid‐IR absorption and near‐IR emission. MOF 3 shows gas‐solid reactivity in the presence of NH3 and HCOOH to yield two new 3D MOF.
Rajat Saha +10 more
wiley +1 more source
Political institutions and the development of telecomunications [PDF]
It has traditionally been argued that the development of telecommunications infrastructure is dependent on the quality of countries’ political institutions.
Luis Díaz-Serrano, Veneta Andonova
core
Advanced Materials, EarlyView.Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley +1 more source