—In facility agriculture, it is an urgent problem to design and choose the type and facility of greenhouse based on user's requirements, which are always difficult to express clearly and definitely. An agent-based intelligence decision support system for designing virtual greenhouse is presented in this paper, in which one agent can reason the appropriate greenhouse skeleton type for users, whi...

The solar-to-chemical energy conversion of greenhouse gas CO2 into carbon-based fuels is a very important research challenge, with implications for both climate change and energy security. Herein, the key attributes of hydroxides and oxygen vacancies are experimentally identified in non-stoichiometric indium oxide nanoparticles, In2O3-x(OH)y, that function in concert to reduce CO2 to CO under s...

Atmospheric aerosol particles impact the Earth’s energy budget through reflection and absorption of solar radiation (the aerosol direct effect) and modification of cloud properties (the aerosol indirect effect). The scattering of incoming solar radiation back to space results in a net decrease in heating at the Earth’s surface. The absorption of solar energy alters the atmospheric heating rate,...

Covering thermal screen on the front roof is one of most general methods to improve performance solar greenhouse in China. Thermal control, however, operator-dependent and based empirical strategies. In order more effectively manage screen, an optimal control method radiation temperature difference between indoor outdoor was established. The influence different factors systematically analyzed f...

The increased urgency of dealing with mitigation of the looming climate change has sparked renewed interest in the nuclear energy option. There exists a substantial stream of research on the amount of embodied energy and greenhouse gas emissions associated with nuclear generated electricity. While conventional fossil fuelled power plants cause emissions almost exclusively from the plant site, t...

OCTOBER 2004 AMERICAN METEOROLOGICAL SOCIETY | T he Progressive Aerosol Retrieval and Assimilation Global Observing Network (PARAGON) concept (Diner et al. 2004) envisions a coordinated and systematic approach for dramatically improving our understanding of aerosol climate impacts and environmental interactions. Among its scientific motivations is the need to establish, with great confidence, t...

Modern civilization is dependent upon fossil fuels, a nonrenewable energy source originally provided by the storage of solar energy. Fossil-fuel dependence has severe consequences, including energy security issues and greenhouse gas emissions. The consequences of fossil-fuel dependence could be avoided by fuel-producing artificial systems that mimic natural photosynthesis, directly converting s...

The paper is focused on a new passive greenhouse architecture, provided with cold water heat pumps, wind generator and solar panels. This greenhouse is independent of any energetic infrastructure (electric, gas, hot water). The sizing of each element and the automate control are critical in order to reduce the costs. A simplified mathematical model, able to assist the design and the automate co...

The efficiency of plant production in a greenhouse depends significantly on the control of climate conditions. A system has been developed to control greenhouse climate. The thermodynamic relations between system variables have been modelled into a set of differential equations and a pseudo-derivative feedback controller is applied. Varying the desired indoor air temperature and humidity ratio ...