Results 111 to 120 of about 283,675 (321)
Development of Autonomous Electric USV for Water Quality Detection
SensorsWith the rise of industry, river pollution has become increasingly severe. Countries worldwide now face the challenge of effectively and promptly detecting river pollution.
Chiung-Hsing Chen +3 more
doaj +1 more source
UPLINK CARRIER-TO-INTERFERENCE IMPROVEMENT IN A CELLULAR TELECOMMUNICATION SYSTEM WHEN A SIX-BEAM SWITCHED PARASITIC ARRAY IS IMPLEMENTED [PDF]
, 2008 Apostolos I. Sotiriou +2 more
openalex +1 more source
Deregulation and Enterprization in Central and Eastern Telecommunication - a Benchmark for the West? [PDF]
The restructuring of telecommunication in Central and Eastern Europe occurs at a time when the classical structures of telecommunication are falling apart worldwide.
Christian von Hirschhausen
core
Perspective: Hollow Core Optical Fibres for Ultraviolet and Visible Wavelengths
Advanced Science, EarlyView.Hollow core optical fibres bypass material constraints that limit optical fibres at ultraviolet and visible wavelengths. However, their challenging fabrication has limited their development, and significant gains in performance remain possible. In this perspective we outline approaches to enable the next generation of fibres for shorter wavelengths ...
Robbie Mears +5 more
wiley +1 more source
, 2008 Wideband Code Division Multiple Access (WCDMA) A 3G highspeed digital data service provided by cellular carriers that use the time division multiplexing (TDMA) or GSM technology worldwide, including AT&T (formerly Cingular) and T-Mobile in the U.S. WCDMA
Mawari, Hamzah, Mohamad, Alias
core
High‐Rate Cross‐Channel Entanglement Swapping Between Independent On‐Chip Sources
Advanced Science, EarlyView.To interconnect individual chip‐based quantum sources, high‐performance entanglement swapping is indispensable. Here, using low‐loss silicon chips with waveguide structure and frequency‐offset pumps, this work demonstrates high‐rate cross‐channel entanglement swapping.
Haoyang Wang +5 more
wiley +1 more source
Process Framework for Subscriber Management and Retention in Nigerian Telecommunication Industry [PDF]
, 2007 in the global telecommunication industry. Hence, a dominant approach for subscriber management and retention is churn control, since it is cheaper to retain an existing subscriber than acquiring a new one.
Daramola, Olawande, Oladipupo, O. O.
core
Advanced Science, EarlyView.We demonstrate a hybrid WS2/CuInP2S6/graphene heterostructure integrated on a silicon nitride microring resonator for non‐volatile optical phase modulation with ultra‐low energy consumption and low insertion loss. While CIPS alone does not provide efficient optical index modulation, the engineered proposed device structure converts ferroelctric domain ...
Lalit Singh +10 more
wiley +1 more source
Advanced Science, EarlyView.This work demonstrates a phase‐engineered MoS2 photodetector that dynamically switches among photocapacitive (PCC), photovoltaic (PV), and photoconductive (PC) modes. By transforming the traditionally parasitic capacitance into an active signal source, the device achieves self‐powered, high‐sensitivity detection with a fast response of 19.2 ms, and a ...
Xinyu Li +16 more
wiley +1 more source
Legacy Telecommunication Systems
Journal of Telecommunications and the Digital Economy, 2015 The subject of legacy telecommunication systems is often overlooked in the pursuit of technological advancement, yet somehow the result is often less than graceful with end users left walking a tightrope between technology they are familiar with, and the evolving replacement systems.
openaire +1 more source