The external container was made using 3-D printing technology: internal channels on the external surface permit the flowing of controlled temperature (≈35 °C) water.
The Hunter's aerodynamic qualities were increasingly infringed upon by modifications in later production models, such as the addition of external containers to collect spent gun cartridges, underwing fuel tanks to increase range, leading edge extensions to resolve pitch control difficulties, and a large ventral air brake.
In [9, 10], a hierarchical architecture is proposed: (1) an internal container network for communication using a combination of RFID tags and sensor motes; (2) an external network between containers that uses more powerful gateways, using an IEEE 802.11 interface or a GPRS modem.
"We've developed a way to have incompatible chemicals in a single container, and an external means to make them react," says Jean Fréchet, an organic chemist at the University of California, Berkeley.
The third duct provided communication between the gas analyzer in the interior of the container and an external PC.
The communication part is handled by standardized components, i.e. ZigBee or Bluetooth, and mostly focuses on direct communication between a container and an external network.
In the terminal, when an external truck arrives to collect a container stored in a specific container block, it waits at one end of the block where an automatic stack crane will retrieve the container and deliver it to the truck.
Dry salt containers were produced by an external production company (Intermed Service GmbH, Ostrhauderfehn, Germany) following a certified and approved production procedure.
The prosthesis is placed in metal containers to obtain two plaster impressions (an internal and an external surface impression).
It used an external circular frame supported by columns of a fixed height which allowed the enclosed container to rise and fall on a floating water reservoir.
