Results 251 to 260 of about 85,778 (285)
Some of the next articles are maybe not open access.
GPRS simulation in ns for WLAN and GPRS integration
Proceedings. 2004 International Conference on Information and Communication Technologies: From Theory to Applications, 2004., 2004This work presents the GPRS simulation in NS for WLAN and GPRS integration. The interoperability between the access network WLAN and GPRS is of high importance in order to provide seamless mobility of the mobile user roaming between different access networks.
N.A. Adra, S. Tohme, M. Doughan
openaire +1 more source
2015
Antennas are a critical hardware component of a radar system, dictating its performance in terms of capability to detect targets. In this Chapter, a wide review on Ground-Penetrating Radar (GPR) antennas is given. Firstly, the gen- eral characteristics of GPR antennas are resumed and the requirements they have to satisfy are listed: these are somehow ...
PAJEWSKI, Lara +2 more
openaire +2 more sources
Antennas are a critical hardware component of a radar system, dictating its performance in terms of capability to detect targets. In this Chapter, a wide review on Ground-Penetrating Radar (GPR) antennas is given. Firstly, the gen- eral characteristics of GPR antennas are resumed and the requirements they have to satisfy are listed: these are somehow ...
PAJEWSKI, Lara +2 more
openaire +2 more sources
Scalable gateway GPRS support node for GPRS/UMTS networks
Proceedings IEEE 56th Vehicular Technology Conference, 2003In GPRS (general packet radio service) and UMTS (Universal Mobile Telecommunications System) networks, GGSN (gateway GPRS support node) serves as a default gateway while MSs (mobile stations) connect to outside networks such as the Internet. According to the GPRS/UMTS specifications, a fixed GGSN is assigned to serve an MS that attaches to the network ...
openaire +1 more source
Fifth International Conferention on Ground Penetrating Radar, 1994
One of the most important variables in GPR is selection of the operating frequency. Proper frequency selection can make the difference between survey success or failure. The most important aspect for a user is to understand the basic principles involved so that adequate survey planning can be carried out. Frequency selection depends on clearly defining
A.P. Annan, S.W. Cosway
openaire +1 more source
One of the most important variables in GPR is selection of the operating frequency. Proper frequency selection can make the difference between survey success or failure. The most important aspect for a user is to understand the basic principles involved so that adequate survey planning can be carried out. Frequency selection depends on clearly defining
A.P. Annan, S.W. Cosway
openaire +1 more source
60 Jahre GPR-Jahrestagung – GPR meets ÖRG
RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren, 2023openaire +1 more source
2020
GPRS является самой широко используемой технологией среди поставщиков услуг. GPRS - это своеобразная производная от GSM к мобильным сетям третьего поколения 3G. GPRS-это скоростная передача данных посредством сетей GSM. Данная технология предоставляет пользователям возможность делать телефонные звонки и отсылать данные одновременно.
openaire +1 more source
GPRS является самой широко используемой технологией среди поставщиков услуг. GPRS - это своеобразная производная от GSM к мобильным сетям третьего поколения 3G. GPRS-это скоростная передача данных посредством сетей GSM. Данная технология предоставляет пользователям возможность делать телефонные звонки и отсылать данные одновременно.
openaire +1 more source
2013
Advances in ground penetrating radar imaging with multi-channel systems have greatly improved the speed and areal coverage for archaeological prospection. Even though the first introductions of multi-channel GPR systems and designs date back more than two decades (e.g. Warhus et al. 1993; Anderson et al.
Dean Goodman, Salvatore Piro
openaire +1 more source
Advances in ground penetrating radar imaging with multi-channel systems have greatly improved the speed and areal coverage for archaeological prospection. Even though the first introductions of multi-channel GPR systems and designs date back more than two decades (e.g. Warhus et al. 1993; Anderson et al.
Dean Goodman, Salvatore Piro
openaire +1 more source

