The authors develop a parameterization to relate the local inventory of gas hydrate (in g/cmˆ2) to relevant input parameters (like water depth). These parameterizations are tuned to one-dimensional numerical models, which circumvents to the need to run numerical models with gridded data. Another approach is to use the numerical models to construct "look-up" tables for use with gridded data. The...

East African community (EAC) is a regional economic bloc established to foster corporation between Kenya, Rwanda, Burundi, Uganda and Tanzania. Using gravity model the study explores short run long effect of on trade using parametric, random fixed estimation techniques. Secondly, investigates whether formation EAC led creation or diversion in among member countries EAC. Lastly, establishes entr...

We investigate the short and long run effects of prices and software availability on the category-level diffusion of 32/64 bit video-game consoles in the US. We adopt an estimation framework that allows for a flexible intrinsic growth pattern for the hardware consoles, and uses instrumental variables to control for the potential endogeneity of prices. We find significant long-term effects of pr...

The Lunar Surface Operations Simulator (LSOS) is being developed to support planning and design of space missions to return astronauts to the moon. Vehicles, habitats, dynamic and physical processes and related environment systems are modeled and simulated in LSOS to assist in the visualization and design optimization of systems for lunar surface operations. A parametric analysis tool and a dat...

We introduce an algorithm that solves the maximum ow problem without generating ows explicitly The algorithm solves di rectly a problem we call the maximum s excess problem That problem is equivalent to the minimum cut problem and is a direct extension of the maximum closure problem The concepts used also lead to a new parametric analysis algorithm generating all breakpoints in the amount of ti...

We introduce an algorithm that solves the maximum ow problem without generating ows explicitly. The algorithm solves directly a problem we call the maximum s-excess problem. That problem is equivalent to the minimum cut problem, and is a direct extension of the maximum closure problem. The concepts used also lead to a new parametric analysis algorithm generating all breakpoints in the amount of...

Purpose: Recent studies showed that African Americans (AA) breast cancer patients experience lower survival than any other race. The knowledge of cause-specific survival of such patients is necessary to investigate the different factors associated with the disease and support the clinical practice. Methods: The parametric competing risk method is applied to build up the survival models and the ...