National Science Foundation/Engineering Research Center for Emerging Cardiovascular Technologies
Article Abstract:
The Duke-North Carolina National Science Foundation/Engineering Research Center for Emerging Cardiovascular Technologies is working on a new generation of cardiovascular interventional and imaging systems. The four areas of research are antiarrhythmic systems, which will deliver defibrillators, ablators, and arrhythmia prevention; real-time three-dimensional ultrasonic imaging, which will deliver three-dimensional real-time ultrasound anatomy and flow imaging; magnetic resonance microscopy, which will deliver a magnetic resonance clinical microscope; and sensors and stents, which will deliver pH monitors, perfusion measurement systems, and implantable stents. The center's Knowledge/Technology Transfer Program, closely related Educational Program, and the work being done by the first two of the four areas mentioned above are described.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1993
User Contributions:
Comment about this article or add new information about this topic:
Measurement of defibrillation shock potential distribution and activation sequences of the heart in three dimensions
Article Abstract:
New techniques and instrumentation are developed to improve the understanding of the effects of defibrillation shock on the hearts of patients who are likely to suffer cardiac death due to ventricular fibrillation. Ventricular fibrillation is a condition wherein electrical activity in the heart becomes disorganized, causing cardiac muscle contraction to be ineffective. Large defibrillation shocks to the heart cause a restoration of normal electrical activity and rhythm. Unfortunately, the shock itself may cause fibrillation and other forms of myocardial damage. This study of measured potential gradient and current density distributions through the heart undergoing defibrillation shock has improved the understanding of the mechanisms of defibrillation and the optimal minimal shock levels, field distribution, and electrode placement.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1988
User Contributions:
Comment about this article or add new information about this topic:
Integrated demand-side management into utility planning
Article Abstract:
Customer-oriented demand-side management (DSM) is found to be a viable strategy that enables electric utilities to maintain good customer relations and improve customer service and satisfaction while maintaining a sound financial condition. The incorporation of DSM into utility planning enables more effective load management, identification and marketing of new uses, demand control and strategic conservation, load retention, customer generation, and management of market share. Selection of viable alternatives from the many goals is facilitated with decision analysis techniques. DSM should be continuously monitored to assure that demand, load requirements, and load changes are optimized for cost-effectiveness and reliability. Details of the application of DSM to electric utility management are described.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1989
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: An efficient multiplexing technique for packet-switched voice-data networks. On the convergence speed of nonlinear least-squares IIR adaptive filter
- Abstracts: Prolog to planetary influences on electrical engineering (tutorial introduction to paper by Ronald N. Bracewell)
- Abstracts: Photovoltaic systems. Economic aspects of advanced energy technologies. Photovoltaic power generation
- Abstracts: Chaos: a tutorial for engineers. INSITE - a software toolkit for the analysis of nonlinear dynamical systems. Chaos from switched-capacitor circuits: discrete maps
- Abstracts: On-line power system security analysis. Knowledge-based systems as operational aids in power system restoration