given the reduced freshwater supplies across the world, seawater desalination is one of the appropriate methods available for producing freshwater. selecting an optimal location is crucial in the installation of these plants owing to the environmental problems they cause. the present study was conducted to identify optimal locations for installing desalination plants in the coastal areas of sou...

one of the important issues for the majority of the planners is the optimized concentration and distribution of service centers. the well-balanced distribution of these centers and services need appropriate site selection so that all walks of life have easy access to these services. from among service centers, site selection for higher education centers is important in terms of their importance...

landfill site selection is an important action in integrated solid waste management process. different criteria should be considered in site selection. therefore using special methods are necessary to evaluate the criteria. the object of the current study was to determine and select suitable sites for solid waste landfill in shiraz city regarding the observation of environmental matters by usin...

Water loss can be minimized and conserve through constructing small storage dams for various irrigation purposes to support local livelihood. Geographic information system provides powerful techniques for many hydrological modeling and suitable dam site selection. The current study explored potential sites for small storage dams to meet agricultural requirements in district Malakand, Khyber Puk...

Transportation networks play a crucial role in human mobility, the exchange of goods and the spread of invasive species. With 90 per cent of world trade carried by sea, the global network of merchant ships provides one of the most important modes of transportation. Here, we use information about the itineraries of 16 363 cargo ships during the year 2007 to construct a network of links between p...

BACKGROUND & OBJECTIVE Aedes aegypti (L.) (Diptera: Culicidae) was surveyed in the residential biotopes of Sindhudurg, Ratnagiri and Raigadh districts, Maharashtra State during dry (January-May & November- December) and wet (June-October) months in 2002 to update information on its distribution, to analyse post invasion establishment, and to study its prevalence. METHODS The survey was design...

This paper describes two high efficiency oil-free screw compressors designed for dry air delivery. Their design is based on the authors’ own rack generated ‘N’ rotor profiles. The optimum rotor size and speed, together with the shape and position of the suction and discharge ports, were determined by mathematical modelling, taking full account of the limitations imposed by bearing and seal sele...