Results 71 to 80 of about 76,162 (363)
Voice and Video Telephony Services in Smartphone
EURASIP Journal on Wireless Communications and Networking, 2006 Multimedia telephony is a delay-sensitive application. Packet losses, relatively less critical than delay, are allowed up to a certain threshold. They represent the QoS constraints that have to be respected to guarantee the operation of the telephony ...
Loscri' Valeria +2 more
doaj +2 more sources
Mobile telephony and its effects on human health
Roczniki Panstwowego Zakladu Higieny, 2019 In recent years, there has been a rapid increase in the number of electromagnetic radiation sources such as mobile phones and base stations of mobile telephony.
Andrzej Magiera, Jolanta Solecka
doaj +1 more source
Advanced Electronic Materials, EarlyView.This work covers ovonic threshold switches (OTSs), from basics to developments and future outlook. It explores OTS devices incorporating various chalcogens and describes how their characteristics vary by material. Engineering strategies, including elemental doping, electrode modifications, post‐treatment, and multilayer designs, are discussed ...
Sanghyun Ban +5 more
wiley +1 more source
Do Zambian farmers manage climate risks?
Applied Economic Perspectives and Policy, EarlyView.Abstract This study investigates production responses to climate risk among farmers in Zambia by combining historical rainfall with nationally representative household data. After identifying the importance of January and February rainfall in maize production, we define these months' historical rainfall variations as the climate risk index.
Soyoka Okamura, Ken Miura, Chieko Umetsu
wiley +1 more source
Internet e telefonia móvel no Brasil: qualidade e densidade das redes no território
ConfinsThis paper discusses the maps produced by Professor Hervé Théry in the second quarter of 2024 on internet and mobile telephony in Brazil, covering the topics of Fixed broadband internet density, 4G/5G mobile internet coverage, Mobile telephony density ...
Mait Bertollo
doaj +1 more source
Mobile telephony, social networks and credit access: Evidence from MSMEs in Kenya
Cogent Economics & Finance, 2018 Access to credit by micro, small and medium enterprises is key for growth and employment. However, it is hindered by information asymmetry. We investigated the effect of mobile telephony and social networks (group networks) on the probability of access ...
Idi Jackson Mdoe +1 more
doaj +1 more source
Tetherless communications: the next step in the development of global personal communication network
Vojnotehnički Glasnik, 1999 Tetherless communications which include all kinds of mobile communication systems (wireless telephony, radio paging, cellular mobile and radio data systems) are considered.
Branislav M. Todorović +1 more
doaj +1 more source
Agribusiness, 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
Access to electricity and digital inclusion: evidence from mobile call detail records
Humanities & Social Sciences Communications, 2021 Despite significant progress in mobile connectivity, a large number of individuals in Sub-Saharan Africa are at risk of being left behind, especially those living in rural areas and women.
Georges V. Houngbonon +2 more
doaj +1 more source
Anchor-Less Producer Mobility Management in Named Data Networking for Real-Time Multimedia [PDF]
, 2019 Information-centric networking (ICN) is one of the promising solutions that cater to the challenges of IP-based networking. ICN shifts the IP-based access model to a data-centric model. Named Data Networking (NDN) is a flexible ICN architecture, which is based on content distribution considering data as the core entity rather than IP-based hosts.
arxiv +1 more source