in current years, the application of biopotential signals has received a lot of attention in literature. one of these signals is an electromyogram (emg) generated by active muscles. surface emg (semg) signal is recorded over the skin, as the representative of the muscle activity. since its amplitude can be as low as 50 µv, it is sensitive to undesirable noise signals such as power‑line interfer...

The design of portable systems for remote monitoring of cardiac activity is one of the most important fields in telemedicine and telecare. In this paper we present a low cost, portable system with wireless transmission for real time ECG acquisition, archiving and visualization both in a mobile phone and a PC. We have implemented the acquisition module and the visualization tool for the mobile d...

NLP systems will be more portable among medical domains if acquisition of semantic lexicons can be facilitated. We are pursuing lexical acquisition through the syntactic relationships of words in medical corpora. Therefore we require a syntactic parser which is flexible, portable, captures head-modifier pairs and does not require a large training set. We have designed a dependency grammar parse...

We present a monolithic low-power, low-noise analog front-end electroencephalogram acquisition system. It draws only 500 A from a standard 9-V battery, making it suitable for use in portable systems. Although fabricated in a standard CMOS technology, by using current feedback techniques it achieves a common mode rejection ratio of 100 dB while the total input noise referred to input is kept bel...

in this research we have presented a local model for implementing systems engineering activities in optimized acquisition of electronic systems in electronic high-tech industrial. in this regard, after reviewing the literature and the use of documents, articles and latin books, we have collected system acquisition life cycle models from different resources. after considering the criteria of the...

References 1. T. Gruber, “Translation Approach to Portable Ontology Specifications,” Knowledge Acquisition, An International Journal of Knowledge Acquisition for KnowledgeBased Systems, June 1993, pp. 199-220. 2. D. Lenat and R.V. Guha, Building Large KnowledgeBased Systems: Representation and Inference in the Cyc Project, Addison-Wesley, Reading, Mass., 1990. 3. J. Hammer et al., “Information ...