Most multiprocessors are multiprogrammed in order to achieve acceptable response time and to increase their utilization. Unfortunately, inopportune preemption may significantly degrade the performance of synchronized parallel applications. To address this problem, researchers have developed two principal strategies for concurrent, atomic update of shared data structures: (1) preemption-safe loc...

Based on the algebra of relations and maps we present some techniques for safe manipulation of pointer structures, with a special emphasis on tree-like structures. We investigate sufficient criteria for preservation of substructures under selective updating. The approach is illustrated with some simple examples.

natural hazards such as earthquakes have threatened the life of human beings during the history.as a consequence, the vibration mitigation of structures has caught great importance. activecontrol of structures is one of the rapidly emerging areas in the concept of structural control. thispaper presents a control method to deal with this subject when the dynamics of the structure ishysteretic an...

LATERAL SAFE is a subproject of the PREVENT Integrated Project cofunded by the European Commission under the 6th Framework Programme. LATERAL SAFE introduces a cluster of safety applications of the future vehicles in order to prevent lateral/rear related accidents and assist the driver in adverse or low visibility conditions and blind spot areas. LATERAL SAFE applications include a lateral and ...

Anatomy knowledge, and the skill to apply it, is arguably the most important facet of safe and competent acupuncture practice. The authors believe that an acupuncturist should always know where the tip of their needle lies with respect to the relevant anatomy so that vital structures can be avoided and so that the intended target for stimulation can be reached. This article describes the anatom...