T h e major problems of hybrid force/position control arise f r o m uncertainty of the robot manipulators and u n k n o w n parameters of the task enviroment. In this paper, a n e w design method of the hybrid force/position control of the robot manipulators i s proposed t o solve these problems. T h e control objective is t o track the desired force and posit ion trajectories simultaneously re...

In solving mathematical equations, it is often sufficient to find approximate solutions; in answering database queries, very often the situation is similar. To formulate the notion of approximation, the neighborhood system or topology is introduced into the relational model called topological data model. Moreover, when a knowledge base is derived from a database, a neighborhood system can also ...

A wide class of nonlinear filters for image processing is outlined and described in a unified way that may serve as a base for the design of their implementations in optoelectronic programmable parallel image processors. The filters are treated in terms of a finite set of certain estimation and neighborhood building operations. A set of such operations is suggested on the base of the analysis o...

The power consumption of wireless access networks will become an important issue in the coming years. In this paper the power consumption of base stations for mobile WiMAX, fixed WiMAX and UMTS is modelled. This power consumption is evaluated in relation to the coverage. For a physical bit rate of 2 Mbps, a power consumption of approximately 5600 W and a range of 1 km is obtained with UMTS. Fix...

participation of people in their cities and neighborhoods has always been emphasized by researchers and experts in order to improve the quality of citizens’ life and having efficient urban management. however, it seems that providing participation contexts at local level by citizens needs preparations and substrates that facilitate participation. in the meantime, establishing a neighborhood man...

Previous research on spoken word recognition has demonstrated that identification of a phonetic segment is affected by the lexical status of the item in which the segment occurs. W. F. Ganong (1980) demonstrated that a category boundary shift occurs when the voiced end of 1 voice-onset time continuum is a word but the voiceless end of another series is a word; this is known as the "lexical effe...

Indexing methods for the approximate string matching problem spend a considerable effort generating condensed neighborhoods. Here, we point out that condensed neighborhoods are not a minimal representation of a pattern neighborhood. We show that we can restrict our attention to super condensed neighborhoods which are minimal. We then present an algorithm for generating Super Condensed Neighborh...

neighborhood attachment is closely related to concrete and abstract conceptions that set the scene for a variety of interactions among the residents. it is on the basis of social-physical location which happens over time. neighborhood attachment also enhances the possibility of residents’ social participation in urban neighborhoods and has a bilateral relationship with residents’ satisfaction. ...