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Amorphous graphene synthesis technology for wearable electronics

16.02.2017

A team of scientists from Samsung Electronics and Korea's Sungkyunkwan University has created an original technology that allows the synthesis of amorphous graphene.

Graphene created in this way has been called the "wonder material" and is two-dimensional sheets of carbon atoms and is considered an ideal material for use in flexible and transparent displays for smartphones and wearable electronics.

The new material has a low electrical conductivity, which expands the possible areas of its use beyond electronics.

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Implementation of the C-V2X vehicular communication system 20.01.2020

The State of Virginia, Audi and Qualcomm announced plans to pilot the deployment of a communication technology for exchanging information between a vehicle and its surroundings - C-V2X.

The system is expected to roll out upstate in the third quarter of 2020 to improve road safety to reduce road crashes and fatalities. On average, more than 36 fatal accidents occur in the United States per year. More than 6000 pedestrians die on American roads every year.

C-V2X systems use both direct short-range communications in the 5,9 GHz band and long-distance communications via cellular carrier networks. Available chipsets support both types of communications simultaneously in one solution, facilitating the implementation of the technology.

Low-latency C-V2X channel capabilities will be used to provide warnings for roadworks and when approaching regulated intersections on highways. Direct communication is carried out in the 20 MHz band (5,905 - 5,925 GHz) in the ITS (Intelligent Transportation System) band, which the US Federal Communications Commission has proposed to allocate for the operation of C-V2X systems. Less important messages will be transmitted via cellular communication. Advanced C-V2X mode assumes transition to 5G using 3GPP Release 16 specifications.

The initial phase of the project focuses on connected car systems designed to improve the safety of school buses, alert drivers to hazardous road conditions, and reduce vehicle congestion in narrow spaces and sidewalks.

On major highways, a solution based on the Qualcomm 9150 C-V2X chipset will transmit information about traffic light phases and their duration to Audi Q8 SUV vehicles. Audi is a leader in V2X solutions, with its Traffic Light Information service operating in 25 cities serving some 10 intersections, more than 1700 of which are located in and around Washington DC.

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