We deene and implement a (max,+) algebra of signals for the timing analysis of discrete event systems expressed as timed event graphs. A system is deened by the innnite, periodic time sequences of its events. Each sequence has a nite representations called a signal. The resulting tool can also compute supre-mal controllers for timed discrete event systems.

A practical methodology for compilation of trustworthy real-time programs is introduced. It combines new program development and timing analysis techniques with traditional compilation and assembly technologies .

a field study was conducted to determine the integration of split n fertilization and herbicide application on weed management and wheat (triticum aestivum l.) yield in shiraz, iran, in 2005/2006 and 2006/2007 growing seasons. the experimental design was split plot with four replications. main factors consisted of n timing and splitting, and sub plots included iodosulfuron–methyl–sodium plus me...

aim and background: psychological climate perceptions have received considerable attention in the organizational literature and have been used to predict a variety of important individual and organizational outcomes such as job satisfaction, burnout, job involvement, organizational citizenship behavior, psychological empowerment, job control and job performance. the aim of this study was to inv...

despite the extensive deployment of multi-core architectures in the past few years, the design and optimization of each single processing core is still a fresh field in computing .on the other hand, having a design procedure (used to solve the problems related to the design of a single processing core )makes it possible to apply the proposed solutions to specific-purpose processing cores .the i...

abstract     evapotranspiration and plant water absorption reduce when exposed to water stress and this reduction results in an increase in leaf temperature. to determine the effect of water stress on leaf temperature and timing of irrigation using leaf temperature, a research was conducted on the research and education greenhouse production center of islamic azad university, isfahan branch (kh...

context appropriate management of neonates, tested positive for congenital hypothyroidism (ch), in particular, the initial dosage of levothyroxine and the time of initiation of treatment is a critical issue. the aim of this study was to assess all current evidence available on the subject to ascertain the optimal initial dose and optimal initiation time of treatment for children with ch. eviden...

We report on the timing analysis of the observation of the X–ray binary pulsar Her X–1 performed during the BeppoSAX Science Verification Phase. The observation covered more that two full orbital cycles near the maximum of the main–on in the 35 day cycle of Her X–1. We present the pulse profiles from 0.1 to 100 keV. Major changes are present below 1 keV, where the appearance of a broad peak is ...