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Software-based self-test has been proposed as a low-cost strategy for on-line periodic testing of embedded processors. In this paper, we show that structural test programs composed only by regular deterministic self-test routines may be unfeasible in a real-time embedded platform. Hence, we propose a method to consciously select a set of test routines from different test approaches to compose a test program for an embedded processor. The proposed method not only ensures the periodical execution of the test, but also considers the optimization of memory and real-time requirements of the application, which are important constraints in embedded systems. Experimental results for a Java processor running real-time tasks demonstrate the effectiveness of the proposed solution.

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In this paper it was numerically simulated an air stream perpendicularly incident upon a valley in order to determine the influence of the Froude and the Rossby numbers in the pattern of the flow. The main of this study is to search under what range of these parameters the air stream will be channeled in the valley. Theoretical considerations shows that the channeling occur if the values of these numbers are limited in one region in the space defined by these parameters.