Xem 1-11 trên 11 kết quả Spatial extent
  • The history of Computational Fluid Dynamics, or CFD for short,, started in the early 1970’s. Around that time, it became an acronym for a combination of physics, numerical mathematics, and, to some extent, computer sciences employed to simulate fluid flows. The beginning of CFD was triggered by the availability of increasingly more powerful mainframes and the advances in CFD are still tightly coupled to the evolution of computer technology.

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  • MORPHOLOGICAL IMAGE PROCESSING Morphological image processing is a type of processing in which the spatial form or structure of objects within an image are modified. Dilation, erosion, and skeletonization are three fundamental morphological operations. With dilation, an object grows uniformly in spatial extent, whereas with erosion an object shrinks uniformly. Skeletonization results in a stick figure representation of an object.

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  • At one time, computational chemistry techniques were used only by experts extremely experienced in using tools that were for the most part di½cult to understand and apply. Today, advances in software have produced programs that are easily used by any chemist. Along with new software comes new literature on the subject. There are now books that describe the fundamental principles of computational chemistry at almost any level of detail.

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  • Water is the most precious commodity- but paradoxically abundant enough for its true value to be overlooked or under appreciated (about 80% of the Earth surface is covered by water) in those areas of the earth where water is scarce, issues surrounding Its use is a matter of life and death oftenly leading to conflicts between the riparian and any interested party. Eg.the pastoral communities and in the Middle East over the use of the River Jordan waters. Lake Naivasha is in Naivasha municipality Naivasha Division, Nakuru District in Rift Valley Province in Kenya.

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  • Spatial database management deals with the storage, indexing, and querying of data with spatial features, such as location and geometric extent. The field emerged from Geographic Information Systems (GIS) and Computer Aided Design (CAD) applications, from which it became apparent that there is a need for the efficient management of large-scale spatial data. More recently, Location Based Services (LBS) brought spatial data management needs to common users, who routinely run spatial queries on their computers or mobile devices.

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  • Foreword for Cary Conference X, “Ecosystem Function in Heterogeneous Landscapes.” Among the most difficult problems in the life sciences is the challenge to understand the details of how ecosystems/watersheds/landscapes function. Yet, the welfare of all life, not just the human species, depends upon the successful functioning of diverse and complicated ecosystems, each with various dimensions and compositions.

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  • Developing the biomass resource base for industrial sector applications requires a reliable supplyof feedstockandprocessing technologies thatareadapted to these feedstocks.Both quantityandqualityoffeedstockhaverelevance,whilethegeographicalandphysicalstructure oftheresourcegenerallydeterminesthespatialextentofmarketdevelopment.Afewexamples here serve to illustrate the alternative resource development paths.

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  • Most tourism and business recruitment activities fall into the Quality, Connected Places component of a regional strategy. Finally, leadership programs, annual meetings, and citizen forums represent the core elements of Civic Collaboration. Development professionals can use the same framework to map their existing strategy.

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  • Over the past three decades, considerable effort has been devoted to assessing the importance of spatial mismatch in determining racial and ethnic differences in employment outcomes. The hypothesis posits that persistent racial housing segregation in U.S. metropolitan areas coupled with the spatial decentralization of employment have left black and, to a lesser extent, Latino workers physically isolated from ever-important suburban employment centers.

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  • To the extent that mismatch is important, closing racial and ethnic gaps in employment and earnings requires improving the access of spatially-isolated minority workers to the full set of employment opportunities within regional economies. Improving accessibility can be accomplished through some combination of community development, residential mobility, and transportation programs. 2 Among the latter set of options, a potential tool for enhancing accessibility would be to increase auto access for racial and ethnic minorities.

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  • In ARIES, Ecosystem Services are the effects on human well-being of the flow of benefits from an ecosystem endpoint to a human endpoint at given extents of space and time. The methodology combines spatially explicit models of ecosystem service provision and use with dynamic flow models to describe the distribution of benefits across the landscape. The exact form of these models depends on the specific context of application and is chosen by means of machine reasoning, on the basis of data analysis and ontological connotations of the services (e.g.

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