Results 111 to 120 of about 252,966 (353)
Competition in a Pure World of Internet Telephony [PDF]
From the angle of competition policy, Voice over IP looks like a panacea. It not only brings better service, but it also increases competitive pressure on former telecommunications monopolists. This paper points to the largely overlooked downside.
Christoph Engel
core
The effects of qos level degradation cost on provider selection and task allocation model in telecommunication networks [PDF]
, 2010 Firms acquire network capacity from multiple suppliers which offer different Quality of Service (QoS) levels. After acquisition, day-to-day operations such as video conferencing, voice over IP and data applications are allocated between these acquired ...
Kasap, Nihat +4 more
core +1 more source
Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application
Advanced Materials, EarlyView.This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong +12 more
wiley +1 more source
Non-Repudiation in Internet Telephony
, 2007 We present a concept to achieve non-repudiation for natural language conversations over the Internet. The method rests on chained electronic signatures applied to pieces of packet-based, digital, voice communication.
Hett, Christian +2 more
core +1 more source
Advanced Materials, EarlyView.This review systematically summarizes recent advances in porosity engineering of MXenes, with a focused discussion on their structure‐governed energy storage properties. A critical analysis of structure–property relationships is presented across alkali‐ion batteries, multivalent‐ion batteries, and supercapacitors.
Shude Liu +8 more
wiley +1 more source
Deregulating fixed voice services? Empirical evidence from the European Union [PDF]
, 2014 This paper deals with the relationship between the traditional fixed-line, mobile and Voice over IP telephony in the EU.We estimate the supply and demand for fixed-line telephony using data on 25 EU member states for the 2006:Q2 - 2011:Q4 period ...
Lange, Mirjam R. J., Šaric, Amela
core
Advanced Materials, EarlyView.This review provides an overview of triboelectric nanogenerator (TENG)–based biomedical applications by classifying studies into electronic and ionic systems across attachable and implantable platforms. It summarizes key material choices, device structures, and working mechanisms that characterize current TENG‐based research, and outlines six future ...
Kyongtae Choi +12 more
wiley +1 more source
Nordic PsychologyAlthough research has established the importance of employee voice on job performance, turnover, and job satisfaction, little is known about the impact of voice, particularly group voice, on collective coping.
Tanja Kirkegaard, Christian WaldstrØm
doaj +1 more source
“Phone Home”: Remote Parenting across National Borders – Jamaican Students in North America and the Role of Mobile Communication Devices [PDF]
, 2012 This study presents a snapshot of geographically distributed families and how they use information and communication technologies (ICTs). The setting is in the Caribbean nation of Jamaica, and by way of qualitative interviews with eleven parents, the ...
Stewart Titus, Marian
core +1 more source
A Colloidal Quantum Dot Thermistor and Bolometer
Advanced Materials, EarlyView.This work introduces colloidal quantum dot thermistors employing a potential barrier structure to tune the activation energy of transport and hence the temperature coefficient of resistance (TCR). Upon integration with plasmonic absorbers, the CQD‐based bolometer device enables room‐temperature wavelength‐selective photodetection across the mid‐ to ...
Gaurav Kumar +7 more
wiley +1 more source