1969 US Open (tennis) Françoise Dürr / Dennis Ralston, 7–5, 6–3 1969 US Open (tennis) The 1969 US Open (formerly known as U.S. National Championships) was a tennis tournament that took place on the outdoor grass courts at the West Side Tennis Club, Forest Hills in New York City, USA. The tournament ran from 28 August until 9 September. It was the 89th staging of the tournament, and the fourth Grand Slam tennis event of 1969. It was the last year at the US Open in which sets were decided by a two-game advantage before the introduction of the tiebreak in 1970. This championship
Technological innovation system aimed at satisfying a particular (societal) function’. With respect to the latter, the approach has especially proven itself in explaining why and how sustainable (energy) technologies have developed and diffused into a society, or have failed to do so. The concept of a technological innovation system was introduced as part of a wider theoretical school, called the innovation system approach.The central idea behind this approach is that determinants of technological change are not (only) to be found in individual firms or in research institutes, but (also) in a broad societal structure in which firms, as well as knowledge institutes, are