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End-of-life vehicle recycling management is becoming a tough issue in the countries that expects to see their motor vehicle population growing rapidly. This paper analyses the main problem of end-of-life vehicles existing in these countries. Drawing on the relevant experience in motorized countries, several policy suggestions are put forward to solve the problem. Firstly, some non-economic policy suggestions are proposed. Then, we establish a SD1 model of end-of-life vehicle recycling in China to simulates different economic policies and some economic policy suggestions are put forward based on the simulation results.

The ASTROCULTURE™ (ASC) middeck flight experiment series was developed to test and integrate subsystems required to grow plants in reduced gravity, with the goal of developing a plant growth unit suitable for conducting quality biological research in microgravity. Flights on the Space Shuttle have demonstrated control of water movement through a particulate rooting material, growth chamber temperature and humidity control, LED lighting systems and control, recycling of recovered condensate, ethylene scrubbing, and carbon dioxide control. A complete plant growth unit was tested on STS-63 in February 1995, the first ASC flight in which plant biology experiments were conducted in microgravity. The methods and objectives used for control of environmental conditions in the ASC unit are described in this paper.