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To differentiate remnant tumour from postoperative changes on short-term follow-up magnetic resonance imaging (MRI) or combined positron-emission tomography (PET) and computed tomography (CT) after inadequate primary resection of malignant soft-tissue tumours.From January 2007 through September 2010, 35 patients (18 women and 17 men; mean age 48 years; age range 18–78 years) who underwent MRI and...
Nowadays, electronic control units (ECUs) have more and more importance on the value of modern automobiles. This trend is causing the complexity of the overall systems to increase and make the development cycles longer. In order to address these problems, strategies to reuse software and a growing emphasis to develop hardware/software co-simulation schemes are gathering strength. The software reuse...
This paper presents a fault-tolerant gateway embedded system that uses two micro-controllers. One microcontroller performs the main function of achieving a gateway, often called by the main micro-controller. In contrast, another plays the role of checker for the main micro-controller, and is called the sub micro-controller. To achieve fault-tolerance, the checker monitors the state of the main micro-controller...
In a distributed system, the synchronization of tasks executed in different nodes is necessary. Therefore, we propose a method of synchronization of tasks in a distributed system using FlexRay. FlexRay is expected to become a dominant protocol in automotive systems. It supports a clock synchronization mechanism. We present two methods for synchronization of tasks using a clock synchronized by FlexRay...
The gateway system is an essential component for network-to-network communication using different protocols inside a distributed system. Since reliability is an important aspect in an automotive system, here we propose a method for improving the reliability of the gateway system by using OSEK/VDX and duplication scheme. Three factors were considered for improving the reliability of the gateway. First,...
This paper presents a vehicular management system (VMS) that consists of gateway, hand-set and vehicular management program (VMP). With the increased demand for vehicular services, overall electronic system has been developing rapidly in the last two decades. As the number of electronic devices has increased, automatic control and management have been made possible. Especially, automatic management...
Developing and validating a distributed system requires great cost, time, and effort than a centralized system because the systems are inherently concurrent, asynchronous, and nondeterministic. For this reason, accurate simulation function is significantly important for developing the distributed system. In particular, it finds applications in the automobile embedded system industry, which requires...
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