A spatial linkage is defined by a workpiece supported by several serial chains. The task of the linkage is defined by specifying rigid positions for the workpiece that approximate a desired workspace. Spatial serial chains can be synthesized and combined to form more complicated linkages. Because there are many serial chains available for this design process, we have developed a Java-based arch...

The complete classification of hexapods — also known as Stewart Gough platforms — of mobility one is still open. To tackle this problem, we can associate to each hexapod of mobility one an algebraic curve, called the configuration curve. In this paper we establish an upper bound for the degree of this curve, assuming the hexapod is general enough. Moreover, we provide a construction of hexapods...

Mechanical linkages are used to transmit and transform motion. In this paper we investigate what it might mean to "understand" a linkage, i.e. how one would explain the functioning of the system. We present a system capable of understanding a variety of relatively simple linkage mechanisms found in standard references. Our system extracts its understanding by analyzing the results of a numerica...

the input - output framework is applied in this study to analyse the change, in the use of labor input. on the basis of input-output tables sectors of the economy are specified according to the degree of their interdependences. backward and forward employment linkages can he calculated. the sectors then are classified according to their total (direct and indirect) employment linkages. through a...

The spatial structure of urban-related industries and agri-food value chains is important for promoting sustainable linkages. Using an interregional input-output framework, this study explores the geography inter-industry linkages between financial business services Chilean related from a subnational perspective. This framework allows adding evidence on rural-related economic activities service...