The effects of strain on the microstructure and mechanical properties 0.81C-0.22Si-0.31Mn (wt%) high-carbon steel were investigated by thermal simulation, scanning electron microscopy, high-resolution transmission microscopy (HRTEM), an backscatter diffractometer (EBSD). It was found that when deformed at 670 °C (a temperature between A1 Ar1), a deformation-induced pearlite transformation cemen...

The Si lightweighlrprocess based system for simulating process interadions is an enhancement to the C programming language in t.he form of library primitives with sets of predefined data structures. The Si system encapsulates an existing lightweight-process library to provide a discrete-event simulation environment supporting the process view. It was developed as a research testbed for investig...

OBJECTIVES To investigate quinolone resistance mechanisms in an Escherichia coli clinical isolate (Ar2) resistant to ofloxacin but susceptible to nalidixic acid selected after 10 days of ofloxacin therapy in a patient with prostatitis. METHODS Molecular typing (ERIC-PCR and RAPD), antibiotic susceptibility and gyrA, gyrB, parC and parE QRDR sequences were compared for E. coli Ar2 and a wild-t...

This paper discusses the design and implementation of Simmcast , an object-oriented framework for network simulation with specific support for group communication. The design of the framework is focused towards simplicity and extensibility. The aim is to allow a spectrum of experiments ranging from evaluation of abstract group communication models to simulation of more detailed multicast protoc...

This paper presents a graph-based system for the dynamic generation of soundscapes and its implementation in an application that allows for an interactive, real-time exploration of the resulting soundscapes. The application can be used alone, as a pure sonic exploration device, but can also be integrated into a virtual reality engine. In this way, the soundcape can be acoustically integrated in...