This paper describes a Java-based architecture for a computer-aided-design system for spatial linkages. These linkages are formed by a workpiece supported by one or more serial chains. The task of the linkage is defined by specifying rigid positions for the workpiece that approximate a desired workspace. Because there are many serial chains available for this design process, the architecture is...

The use of spatially referenced data in cancer studies is gaining in prominence, fueled by the development and availability of spatial analytic tools and the broadening recognition of the linkages between geography and health. We provide an overview of some of the unique characteristics of spatial data, followed by an account of the major types and sources of data used in the spatial analysis o...

Students of international conflict are increasingly aware of the potential problem of spatial dependence. Much of international behavior is linked spatially and temporally. Yet, many dyadic analyses of interstate interactions assume independence among units. Although there exist some technical and statistical solutions for addressing spatial dependence, directly modeling the dependence generati...

[1] We conducted a detailed study of subsurface flow and water table response coupled with digital terrain analysis (DTA) of surface and subsurface features at the hillslope scale in Panola Mountain Research Watershed (PMRW), Georgia. Subsurface storm flow contributions of macropore and matrix flow in different sections along an artificial trench face were highly variable in terms of timing, pe...

Designing an m-bar linkage with a maximal number of assembly modes is important in robot kinematics, and has further applications in structural biology and computational geometry. A related question concerns the number of assembly modes of rigid mechanisms as a function of their nodes n, which is uniquely defined given m. Rigid 11-bar linkages, where n = 7, are the simplest planar linkages for ...

Abstract This article presents an investigation of agricultural production risk over time and across space its implications for food security. The econometric approach involves a Quantile Autoregressive (QAR) model copula to provide flexible representation the distribution yield evolution space. analysis relies on two‐step estimation method evaluate multivariate spatial temporal evolution. Link...

This article outlines the type of research infrastructure needed to complement existing commercial Geographic Information System (GIS) environments to perform state-of-the-art spatial analysis of real estate markets. The emphasis is on the relevance of a spatial data analytic perspective and on the operational setting in which this can be implemented. These ideas are part of an overall framewor...