The construction of super highrise buildings has been very active in Hong Kong for decades. Recent renowned projects like the 50-storey Manulife Tower, the 62-storey Cheung Kong Center, the 80-storey “Center”, the 88-storey International Financial Center, and a number of recent residential buildings exceeding 60-storey tall, are without exception, using curtain wall as their external envelope. ...

Side-curtain airbags have demonstrated the ability to help reduce the possibility of ejection and serious injury during automotive collisions. Engineers developing these new types of airbags are aided by Virtual Product Development tools (VPD), which allow the engineer to more fully analyze the airbag mechanism and dynamic inflation. Autoliv, the world’s largest manufacturer of automotive safet...

This paper describes several main monomial cooling methods of greenhouse in summer, including natural ventilation, mechanical ventilation, wet curtain cooling, external sun-shading etc., as well as analyzes the change law of the environment on temperature and humidity in greenhouse. The result shows that the four cooling methods stated above make the temperature gradients between internal and e...

In the increasingly rare segment, the stage curtain is raised to reveal an individual or team performing an unusual stunt, often accompanied by music from the CBS Orchestra ... after about thirty seconds the curtain is lowered and Letterman discusses with [Paul] Shaffer whether the act was ‘something’ or ‘nothing’ ... it was resurrected on the March 22, 2006, episode. A man balanced himself on ...

Metal curtain walls have been used to decorate the interiors and exteriors of large buildings. Most exteriors used in performing surface modeling of large buildings are linked or pieced by quadric surface. This surface, which is non-expansible, will cause wrinkling when stamped and used as a flat sheet metal of a metal curtain wall. These wrinklings are not distributed effectively because of th...

A microbiological hood was designed to reduce the danger of airborne infection of laboratory workers. The hood uses absolute filters to deliver sterile air in a laminar flow to the work area. An air curtain across the hood opening permits easy access but separates the worker from aerosols produced in the hood, and protects material inside the hood from contamination by room air. Tests with bact...

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