نتایج جستجو برای: gsm mobile phone base stations
تعداد نتایج: 510422 فیلتر نتایج به سال:
This paper describes the design and implementation of an SMS transmission system using the PDU (Protocol Data Unit) mode of a GSM (Global System for Mobile Communications) modem. The system may be used in several applications: telemetry or remote control, using short messages from a standard GSM mobile phone, and in other application circuits. In order to perform these applications, coding and ...
The purpose of this study was to examine the effects of short-term GSM (Global System for Mobile Communications) cellular phone base station RF-EMF (radiofrequency electromagnetic fields) exposure on psychological symptoms (good mood, alertness, calmness) as measured by a standardized well-being questionnaire. Fifty-seven participants were selected and randomly assigned to one of three differen...
OBJECTIVE To investigate the risk of early childhood cancers associated with the mother's exposure to radiofrequency from and proximity to macrocell mobile phone base stations (masts) during pregnancy. DESIGN Case-control study. SETTING Cancer registry and national birth register data in Great Britain. PARTICIPANTS 1397 cases of cancer in children aged 0-4 from national cancer registry 19...
Value Added Services VAS in Mobile-Phone-Networks, found its way to TV & Radio stations through the benefits from the huge audience or followers they got. Also the traditional media decides to get advantages of VAS services and consider it as a new revenue source. The traditional TV & Radio stations and the mobile phone network based on 3G technologies and beyond, both get dramatic changes by t...
Predistortion in GSM has been introduced to deal with saturation in amplification at Base Transceiver Stations (BTS). This paper will focus on the elements and architectures in signal predistortion for one carrier and multicarrier modulations. The GCMAC neural network has been introduced as predistorter to provide the design with adaptive, digital and practical features. Some results are includ...
background: radiation-induced bystander effect is a response which results in damage in non-irradiated cells in response to signals from the irradiated cells. the aim of the present study was to investigate microwave-induced bystander effect from a gsm mobile phone simulator on induction of apoptosis in jurkat cell line. materials and methods: jurkat cells were divided into three groups of non-...
Mobile phones are two-way radios that emit electromagnetic radiation in microwave range. As the number of mobile phone users has reached 6 billion, the bioeffects of exposure to mobile phone radiation and mobile phone electromagnetic interference with electronic equipment have received more attention, globally. As self-monitoring of blood glucose can be a beneficial part of diabetes control, ho...
The main application of stream ciphers is online-encryption of arbitrarily long data, for example when transmitting speech data between a Bluetooth headset and a mobile GSM phone or between the phone and a GSM base station. Many practically used and intensively discussed stream ciphers such as the E0 generator used in Bluetooth and the GSM cipher A5/1 consist of a small number of linear feedbac...
Background: Radiation-induced bystander effect is a response which results in damage in non-irradiated cells in response to signals from the irradiated cells. The aim of the present study was to investigate microwave-induced bystander effect from a GSM mobile phone simulator on induction of apoptosis in Jurkat cell line. Materials and Methods: Jurkat cells were divided into three groups of non-...
Today world population lives in a new electromagnetic environment, characterized with (i) around the clock enforcement of chronic exposure of all age and gender groups to a wide range of modulated electromagnetic fields (EMF) from base stations; (ii) daily, repeated from early childhood throughout entire life exposure to EMF RF mobile phone the brain and vestibular receptor apparatus and audito...
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