"While in police custody, we were handcuffed and savagely beaten with chairs, bats, sticks, shoes and police radio communication devices," said one pilgrim, Amir Taki, 24.
They carry radio communication devices for frequent contact with the operational command.
The sedans will be outfitted with DSRC short-range radio communication devices to transmit and receive simple messages, including vehicles' GPS location, speed and heading.
Also, the exponentially growing demand of wireless communication devices has taxed radio spectrum, resulting in a need to find alternatives.
There were no wireless communication devices used so there was no radio disturbance.
Using this technology, the battery-powered wireless communication devices can harvest energy from the ambient radio frequency (RF) signals to prolong their lifetime.
That person might have to engage in a conversation too long for the police radio, a communication device rooted in brevity, often for emergency situations.
The potential risks of enabling radio communication in implantable medical devices were first highlighted by Kevin Fu, an assistant professor of computer science at the University of Massachusetts, Amherst, and Tadayoshi Kohno, an assistant professor of computer science at the University of Washington.
Wireless and radio communication, power transmission, or devices in daily use such as smartphones, tablets, and portable computers every day expose people to electromagnetic pollution.
Projects are being run by the entire spectrum of development organisations, using every form of communication device (from radio through to mobile phones and satellite systems), to tackle the major challenges of our age: access to water, information, education, markets and many others.
The delay in developing the system, they said, is attributable to factors like accounting for the varying weight, length and braking times of freight and passenger trains and ensuring that radio frequencies and communication devices work in different terrain and conditions.
