Results 81 to 90 of about 85,239 (405)

Modulation in Radio Telephony [PDF]

open access: yesProceedings of the IRE, 1921
After considering the general characteristics of a voice-modulated radio frequency current, there is given a systematic classification of the various methods of producing such modulation in transmitters using three-electrode vacuum tubes. The output, efficiency, stability, completeness of modulation, quality, and other characteristics of each method of
openaire   +3 more sources

Analyzing ENUM Service and Administration from the Bottom Up: The addressing system for IP telephony and beyond [PDF]

open access: yesarXiv, 2001
ENUM creates many new market opportunities and raises several important policy issues related to the implementation and administration of the ENUM database and services. Recent World Telecommunications Policy Forum 2001 dealt with the emergence of ENUM as an important numbering issue of IP telephony.
arxiv  

Disentangling the relationships between denomination of origin regulatory councils activities and Spanish wineries' export performance

open access: yesAgribusiness, EarlyView.
Abstract World markets for quality differentiated agri‐food products are highly competitive, presenting significant challenges for firms aiming to compete effectively. Government agencies and business organizations often implement various export promotion policies to address these challenges.
Nicolás Depetris‐Chauvin   +1 more
wiley   +1 more source

Telephony and the NBN

open access: yesTelecommunications Journal of Australia, 2011
Most of the discussion about Australia's National Broadband Network (NBN) has been about the costs, the benefits and the implementation of "super-fast broadband". This article looks at another important use that will be made of the optical fibre to the user provided by the NBN - the provision of telephony service as a continuation of the current ...
openaire   +2 more sources

Farmers' Participation in Messenger‐Based Social Groups And Its Effects on Performance in Irrigated Areas of Kazakhstan and Uzbekistan

open access: yesAgribusiness, EarlyView.
ABSTRACT The penetration of information and communication technologies (ICTs) in farming communities is increasing the use of smartphone‐based instant messaging apps. Despite this, the reasons behind participation and the impact on farm productivity in developing countries remain unexplored.
Zafar Kurbanov   +4 more
wiley   +1 more source

Clean Cut (adaptive, multimodal surgical infection prevention programme) for low‐resource settings: a prospective quality improvement study

open access: yesBJS (British Journal of Surgery), EarlyView., 2020
Clean Cut is a multimodal, adaptive, checklist‐based infection prevention programme designed to improve compliance with six critical perioperative infection prevention practices. After introducing the programme at five hospitals in Ethiopia, compliance with critical infection prevention standards significantly improved and the relative risk of ...
J. A. Forrester   +16 more
wiley   +1 more source

Splenomegaly in predicting the survival of patients with advanced primary liver cancer treated with immune checkpoint inhibitors

open access: yesCancer Medicine, Volume 11, Issue 24, Page 4880-4888, December 2022., 2022
Kaplan–Meier analysis demonstrated that patients with splenomegaly had worse OS than those without splenomegaly. Abstract Background & aims Immune checkpoint inhibitors (ICIs) play an increasingly important role in the treatment of primary liver cancer (PLC). Some patients with PLC experience symptoms of splenomegaly.
Lu‐Shan Xiao   +9 more
wiley   +1 more source

Air Traffic Controller Fatigue Detection by Applying a Dual-Stream Convolutional Neural Network to the Fusion of Radiotelephony and Facial Data

open access: yesAerospace
The role of air traffic controllers is to direct and manage highly dynamic flights. Their work requires both efficiency and accuracy. Previous studies have shown that fatigue in air traffic controllers can impair their work ability and even threaten ...
Lin Xu   +3 more
doaj   +1 more source

PARTICULARTS REGARDING THE ACCOUNTING RECOGNITION OF REVENUE – THE CASE OF MOBILE OPERATORS [PDF]

open access: yesRisk in Contemporary Economy, 2015
For the current economy, the sector of telecommunications which includes mobile telephony is one of the most important worldwide. World leaders of this sector are among the companies present in Romania, in terms of income and as financial performance ...
Iuliana Oana Mihai, Riana Iren Radu
doaj  

Gender and the Telephone: Voice and Emotions Shaping and Gendering Space [PDF]

open access: yesHuman Technology, 2013
In the field of communication studies, the topic of telephony and the gendering of space via voice and emotions has received limited attention. The focus of this article is how telephone conversations are mediated by voice and emotions, which in turn ...
Mona Livholts, Lia Bryant
doaj   +1 more source

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