Presented is a quantum lattice gas for Navier-Stokes fluid dynamics simulation. The quantum lattice-gas transport equation at the microscopic scale is presented as a generalization of the classical lattice-gas transport equation. A special type of quantum computer network is proposed that is suitable for implementing the quantum lattice gas. The quantum computer network undergoes a partial coll...

This paper considers mixed-line-rate (MLR) technology to design a green IP over WDM optical network. We develop a node-arc-based mixed integer linear programming (MILP) optimization model and propose a simple heuristic to configure the mixed-line-rate network. Results indicate that for the test scenarios considered, more than 48% power consumption can be saved compared with the single-line-rate...

lichens are composite organisms formed by a fungus and a green alga and / or a blue-green bacterium. they are recognized as being very sensitive to atmospheric pollution and respond to factors that influence human and environmental healths. since 1860, lichen has been identified as a biological indicator to detect air pollution in great britain and europe. lichens have the high sensitivityto ni...

In natural gas treatment, the removal of CO2 and H2S in acid gases is a critical concern. There are various purification technologies that can be used for the removal of acid gas impurities. Absorption of acid gas into amines is one preferred method in gas industries. In the past, single amines was used, but recently in order to improve absorption performance, mixed amines with different solubi...

tehran the capital city of iran, with a population of about 8 million and an area of over 700 km2 is one of the most polluted metropolises in the world. tehran is suffering from a tremendous reduction in its sink capacity for absorption and assimilation of pollution which is generally due to uncontrolled urban sprawl and failure in consideration of ecological aspects into regional land use plan...

Natural gas is increasingly being used as a pure energy source. So it's valuable to reduce its total cost to be affordable for individual customer. In the past, interest was focused on efficient pipe network analysis method regardless of network cost; so many researches could be found for methods developed for network analysis. In contrast, very little researches could be developed to optimize ...

1999 This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards or with the North American Stratigraphic Code. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Introduction During April 1999, the U.S. Geological Survey (USGS) conducted a 13-day cruise in the G...