نتایج جستجو برای: cordless telephone system

تعداد نتایج: 2264842  

Journal: :Electromagnetic biology and medicine 2014
Marie-Claire Cammaerts Olle Johansson

Society is confronted with an increasing number of applications making use of wireless communication. We also notice an increasing awareness about potentially harmful effects of the related electromagnetic fields on living organisms. At present, it is not realistic to expect that wireless communication will decrease or disappear within the near future. That is why we currently are investigating...

Journal: :International archives of occupational and environmental health 2005
Lennart Hardell Mikael Eriksson Michael Carlberg Christer Sundström Kjell Hansson Mild

OBJECTIVES To evaluate the use of cellular and cordless telephones as the risk factor for non-Hodgkin's lymphoma (NHL). METHODS Male and female subjects aged 18-74 years living in Sweden were included during a period from 1 December 1999 to 30 April 2002. Controls were selected from the national population registry. Exposure to different agents was assessed by questionnaire. RESULTS In tota...

2003

During the last decade several standards for Mobile telecommunications have been developed. The best known is without any doubt the Global Standard for Mobile Communications (GSM) which is operational in many countries, both within and outside Europe. It is now the most successful standard for mobile communications. Also the Digital Enhanced Cordless Telecommunications (DECT) was successfully i...

2013
Mary Redmayne

BACKGROUND Cellphone and cordless phone use is very prevalent among early adolescents, but the extent and types of use is not well documented. This paper explores how, and to what extent, New Zealand adolescents are typically using and exposed to active cellphones and cordless phones, and considers implications of this in relation to brain tumour risk, with reference to current research finding...

1998
Derek Lam Lynn Plouse Aly F. Elrefaie Yee-Hsiang Chang

This paper presents a telephony solution for Local Multi-point Distribution Service (LMDS) using technology for Personal Communications Services (PCS). An actual system based on Digital Enhanced Cordless Telecommunications (DECT) has been implemented. The system architecture of the DECT-based LMDS telephony system is discussed. Performance measurement results show that a DECT-based system does ...

Journal: :Scientific American 1908

Journal: :Scientific American 1914

2010
Michael Weiner Erik Tews Benedikt Heinz Johann Heyszl

The DECT Standard Cipher (DSC) is a proprietary stream cipher used for enciphering payload of DECT transmissions such as cordless telephone calls. The algorithm was kept secret, but a team of cryptologists reverse-engineered it and published a way to reduce the key space when enough known keystreams are available [4]. The attack consists of two phases: At first, the keystreams are analyzed to b...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1386

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