A concept (abstract term: conception) is a cognitive unit of meaning—an abstract idea or a mental symbol sometimes defined as a "unit of knowledge," built from other units which act as a concept's characteristics.
An idea or invention to help sell or publicize a commodity
an abstract or general idea inferred or derived from specific instances
In generic programming, a concept is a description of supported operations on a type, including syntax and semantics. In this way, concepts are related to abstract base classes but concepts do not require a subtype relationship.
Look at or observe attentively, typically over a period of time
a period of time (4 or 2 hours) during which some of a ship's crew are on duty
Keep under careful or protective observation
a small portable timepiece
organic light-emitting diode: a self-luminous diode (it glows when an electrical field is applied to the electrodes) that does not require backlighting or diffusers
An organic light emitting diode (OLED) is a light-emitting diode (LED) in which the emissive electroluminescent layer is a film of organic compounds which emits light in response to an electric current. This layer of organic semiconductor material is sandwiched between two electrodes.
or Organic LED is not made of semiconductors. It's made from carbon-based molecules. That is the key science factor that leads to potentially eliminating LEDs' biggest drawback – size. The carbon-based molecules are much smaller. And according to a paper written by Dr. Uwe Hoffmann, Dr.
Audi e-tron Concept Car (34528)
The e-tron is Audi?s electric concept car based on the R8. With a range of 250km and a total output of 313hp it is a sporty approach towards electricity in motion. The e-tron weighs in at 1,600kg, but still accelerates in 4.8 secs from 0 to 100 km/h. The top speed is limited to 200 km/h.
Audi is using a Li-Ion-battery in this prototype.
BMW Vision EfficientDynamics Concept Car (34430)
BMW Vision EfficientDynamics Concept Car - a hybrid vehicle with 356hp and a CO2 emission of just 99g/km. And it is a diesel!