Vertical axis wind turbine Vertical-axis wind turbines (VAWTs) are a type of wind turbine where the main rotor shaft is set vertically and the main components are located at the base of the turbine. This arrangement allows the generator and gearbox to be located close to the ground, facilitating service and repair. VAWTs do not need to be pointed into the wind,[1] which removes the need for wind-sensing and orientation mechanisms. Major drawbacks for the early designs (Savonius, Darrieus and giromill) included the significant torque variation during each revolution, and the huge bending moments on the blades. Later designs solved the torque issue by providing helical twist in the blades similar to Gorlov's water turbines. A VAWT tipped sideways, with the axis perpendicular to the wind streamlines, functions similarly. Drag-type VAWTs such as the Savonius rotor typically operate at lower tipspeed ratios than lift-based VAWTs such as Darrieus rotors and cycloturbines. General aerodynamics[edit] , where where Where
Welcome to the Judicial Commission of New South Wales — Judicial Commission of New South Wales The Unanswered Questions In The Hunt For Freya Newman It was a scandal in the halls of academe. In late 2011, Paul Greenfield, the Vice-Chancellor of the University of Queensland, was forced to resign. The reason? Irregular it certainly was. As the official report by the Queensland Crime and Misconduct Commission makes plain, Greenfield had pulled strings to get his daughter a place. It turned out that young Ms Greenfield (we still don’t know her first name) had been given a spot in the highly competitive degree above more than 340 better-qualified students. That didn’t stop her father, Paul. Greenfield called the head of the medical school, David Wilkinson. Keniger acted swiftly. It was nine months before the UQ nepotism scandal came to light. The beans were finally spilled in September 2011. When the news broke, a storm of controversy blew up. Greenfield and Keniger never returned to their roles. It’s interesting to contrast the UQ admissions scandal to another college scandal involving the daughter of a powerful person: Frances Abbott.
Murdoch's 'Do As We Say Not As We Do' School Of News Journalism As far as I’m concerned, there is no question that New Matilda’s leaks about Professor Barry Spurr have been important and worthwhile. They have revealed significant information about the government’s process of creating a new national school curriculum. And they have also been revealing about certain elements of the media. Let us remember the beginning of the review of the school curriculum. It began with Education Minister Christopher Pyne complaining about its inadequate focus on Western civilisation. Pyne then appointed two men who agreed with him to conduct this review, and lo and behold, one of the experts they found was Professor Spurr. The Greens complained in January that Pyne “wants to take us back to the 1950s”. When we consider the leaked emails, we should remember a few points. Secondly, there is no question that the emails have national significance. Consider that for a moment. Now let’s consider another point which has evidence on one side only.