Results 31 to 40 of about 78,228 (280)
ADLFI. Archéologie de la France - Informations, 2001 Identifiant de l'operation archeologique : F1354200100052 Date de l'operation : 2001 (EV) Prealablement a l'exploitation d'une extension de carriere de sable du groupe GSM, le service regional de l'archeologie de Lorraine a prescrit la realisation de sondages archeologiques, qui se sont reveles negatifs sur les 4 ha vises par le projet.
Mangin, Gilles, Mangin, Gilles
openaire +3 more sources
Análisis de ocupación espectral banda GSM 850 en Bogotá
Visión Electrónica, 2018 Este artículo presenta un análisis de uso de canales y la medición de ocupación espectral sobre la banda GSM-850 para el enlace downlink mediante dos escenarios de medición; Se definió un sector de Bogotá, Zona norte, sobre el cual se trazó una ...
Juan Carlos Martínez Quintero +2 more
doaj +1 more source
Implementation and Performance Evaluation of WSN for Energy Monitoring Application [PDF]
Engineering and Technology Journal, 2015 The aim of this paper is to develop a wireless sensor network to measure and analyze energy consumption in buildings and to investigate the bounds of coverage in different building construction materials.
Haider A. H. Alobaidy +2 more
doaj +1 more source
Anatomy & Cell Biology, 2017 Due to the importance of neural stem cells (NSCs) in plasticity of the nervous system and treating neurodegenerative diseases, the main goal of this study was to evaluate the effects of radiofrequency radiation emitted from a GSM 900-MHz mobile phone ...
M. Eghlidospour +3 more
semanticscholar +1 more source
, 2019 Electrical grid services refer to a range of services required by transmission and distribution system operators to maintain a reliable and balanced electrical power system. The diffusion of intermittent renewables and distributed energy resources is increasing, meaning the demand for grid services is likely to grow.
Imboden, Christoph (Hrsg.) +10 more
openaire +3 more sources
ARO-The Scientific Journal of Koya University, 2019 This work presents a novel microstrip dual-band bandpass filter (BPF) using meandros spirals and patch cells, which is proposed for the first time by this work. It occupies a very compact size of 0.0017 λg2.
Abbas Rezaei, Salah I. Yahya
doaj +1 more source
Securing Speech in GSM Networks using DES with Random Permutation and Inversion Algorithm [PDF]
International Journal of Distributed and Parallel Systems (IJDPS)
Vol.3, No.4, July 2012, 157-164, 2012 Global System for Mobile Communications (GSM) is one of the most commonly used cellular technologies in the world. One of the objectives in mobile communication systems is the security of the exchanged data. GSM employs many cryptographic algorithms for security like A5/1, A5/2 and A5/3.
arxiv +1 more source
GIS Applications for Road Network of Port Said, Egypt. [PDF]
Port Said Engineering Research Journal, 2013 There is no doubt that one minute can save a human life. Emergency services such as ambulance, police, and FireBridge are among the most important applications of Geographic Information System, GIS.
doaj +1 more source
NDN-GSM-R: a novel high-speed railway communication system via Named Data Networking
EURASIP Journal on Wireless Communications and Networking, 2016 To keep up with the rapid development of railway and meet the high demand for communication business in China, Global System for Mobile Communications-Railway (GSM-R) based on General Packet Radio Service (GPRS) ahead of Europe has been developed ...
Zhuo Li +3 more
semanticscholar +1 more source
Prototype Pendeteksi Daerah Rawan Kecelakaan Berbasis Internet of Things
Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi), 2020 The high number of deaths due to traffic accidents is still a problem for every country where Indonesia ranks third in Asia with 38,279 deaths according to the 2015 Global Status Report on Road Safety.
Yankotinu Al Qod'r Jonnata +2 more
doaj +1 more source