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ecause stress is a leading cause of illness and disease and is so pervasive, there is an inherent need to be able to monitor stress in real time over extended periods. A real-time personal stress monitor would benefit individuals by providing continuous feedback about their stress levels and by helping their physicians to objectively evaluate stress(More)
In this paper we discuss issues surrounding wearable computers used as intelligent health monitors. Unlike existing holter monitors (for example, ECG and EEG holters), that are used mainly for data acquisition, the devices we discuss provide real-time feedback to the patient, either as a warning of impending medical emergency or as a monitoring aid during(More)
Medical monitors have benefited from technological advances in the field of wireless communication, processing and power sources. These advances have made possible miniaturization and prolonged operating times of medical monitors, as well as their global integration into telemedical systems. This allows patients to have real-time feedback about medical(More)
The goal of the study presented in this paper is to develop an embedded biomedical system capable of delivering maximum performance on demand, while maintaining the optimal energy efficiency whenever possible. Several hardware and software solutions are presented allowing the system to intelligently change the power supply voltage and frequency in runtime.(More)
—Wireless sensor networks emerged as a key technology for prolonged, unsupervised monitoring in a wide spectrum of applications, from biological and environmental to civil and military. The sensor networks should operate autonomously for a long period of time with stringent resource and energy constraints. Energy conservation and power-awareness have become(More)
This paper presents new solutions for an element of the cluster that will be primarily used as a scalable storage product for collection of mainframes. Existing storage solutions either employ server-attached disks, where the problem is the number of I/O slots, either are the specially designed products, where the problem is the lack of standards. The(More)
Routing in the ATM environment requires fast handling of large size routing tables, forcing high speed network nodes to implement appropriate hardware support for routing. Traditional solution for this problem is to use associative memories; however, for the ATM router, this solution may require an excessively large chip area and power consumption. This(More)
Proper balance of power and performance for optimum system organization requires precise profiling of the power consumption of different hardware subsystems as well as software functions. Moreover, power consumption of mobile systems is even more important, since the battery is a large portion of the overall size and weight of the system. Average power(More)
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