Target tracking using wireless sensor networks offers multiple challenges because it usually involves intensive computation and requires accurate methods for tracking and energy consumption. Above all, scalability, en...Target tracking using wireless sensor networks offers multiple challenges because it usually involves intensive computation and requires accurate methods for tracking and energy consumption. Above all, scalability, energy optimization, efficiency, and overhead reduction are some among the key tasks for any protocol designed to perform target tracking using large scale sensor networks. Border surveillance systems, on the other side, need to report border crossings in a real time manner. They should provide large coverage, lower energy consumption, real time crossing detection, and use efficient tools to report crossing information. In this paper, we present a scheme, called Border Cooperative and Predictive Tracking protocol (BCTP), capable of energyaware surveillance and continuous tracking of objects and individuals’ crossing a country border and anticipating target motion within a thick strip along the border and estimating the target exit zone and time.展开更多
This essay examines Raymond Williams's autobiographical novel Border Country,the first novel of his ambitious"Welsh Trilogy."The aim of the essay is twofold.Firstly,it analyzes the unsettling issue of ho...This essay examines Raymond Williams's autobiographical novel Border Country,the first novel of his ambitious"Welsh Trilogy."The aim of the essay is twofold.Firstly,it analyzes the unsettling issue of how a bio-regional place(native place)shapes polyvalent identities in a historically changing environment and how the boundary that crisscrosses the passages of life is redrawn through narrative re-circumscription and optical revision.Secondly,the essay calls this trope of internalizing"border-crossing"into question in the context of global diaspora and critically problematizes Williams's identity politics as schizophrenic split from British post-colonial empire.展开更多
文摘Target tracking using wireless sensor networks offers multiple challenges because it usually involves intensive computation and requires accurate methods for tracking and energy consumption. Above all, scalability, energy optimization, efficiency, and overhead reduction are some among the key tasks for any protocol designed to perform target tracking using large scale sensor networks. Border surveillance systems, on the other side, need to report border crossings in a real time manner. They should provide large coverage, lower energy consumption, real time crossing detection, and use efficient tools to report crossing information. In this paper, we present a scheme, called Border Cooperative and Predictive Tracking protocol (BCTP), capable of energyaware surveillance and continuous tracking of objects and individuals’ crossing a country border and anticipating target motion within a thick strip along the border and estimating the target exit zone and time.
文摘This essay examines Raymond Williams's autobiographical novel Border Country,the first novel of his ambitious"Welsh Trilogy."The aim of the essay is twofold.Firstly,it analyzes the unsettling issue of how a bio-regional place(native place)shapes polyvalent identities in a historically changing environment and how the boundary that crisscrosses the passages of life is redrawn through narrative re-circumscription and optical revision.Secondly,the essay calls this trope of internalizing"border-crossing"into question in the context of global diaspora and critically problematizes Williams's identity politics as schizophrenic split from British post-colonial empire.
