In mathematics, an ellipse is a curve on a plane that surrounds two focal points such that the sum of the distances to the two focal points is constant for every point on the curve. As such, it is a generalization of a circle, which is a special type of an ellipse that has both focal points at the same location. The shape of an ellipse (how 'elongated' it is) is represented by its eccentricity, which for an ellipse can be any number from 0 (the limiting case of a circle) to arbitrarily close to but less than 1.
Analytically, an ellipse can also be defined as the set of points such that the ratio of the distance of each point on the curve from a given point (called a focus or focal point) to the distance from that same point on the curve to a given line (called the directrix) is a constant, called the eccentricity of the ellipse.
Braking energy recovery technologies are an opportunity to increase the energy efficiency in public transport systems like metro, light rail/tram or trolleybus networks and will be presented during the first ELIPTIC webinar from 10.00 to 11.30CEST on 29 April 2016.
A call was widely circulated in August and September to select the ELIPTIC 'Twin cities' in addition to the eleven partner cities already in the project. Out of over 22 application, the ELIPTIC Project ManagementGroup selected 11 to join ELIPTIC as twin cities ... The twins will also take part in the bi-annual ELIPTIC User Fora.
The ELIPTIC project has extended the deadline for applications for its 'twinning' fund to Friday 18 September... The ELIPTIC twinning fund offers two different take-up levels and activities, which range from inspirational - such as workshops and study tours - to small-scale study activities.
The ELIPTIC twinning fund aims at supporting the take-up of ELIPTIC's sustainable measures with regard to electrification of public transport in European cities. The twinning fund is a financing mechanism within the ELIPTIC project which aims to support the transfer of measures from ELIPTIC partner cities to 'twin' cities.