The Experts below are selected from a list of 207 Experts worldwide ranked by ideXlab platform

J. Renwick - One of the best experts on this subject based on the ideXlab platform.

  • HIPPI: simplicity yields success
    IEEE Network, 1993
    Co-Authors: D. Tolmie, J. Renwick
    Abstract:

    The high-performance parallel Interface (HIPPI), a simplex Point-to-Point Interface for transferring data at peak data rates of 800 or 1600 Mb/s over distances of up to 25 m, is reviewed. The HIPPI physical layer, framing protocol, link encapsulation, its mapping to fiber channels, mapping to IPI-3, switch control, fiber extender, and tester are described. The role of HIPPI in networks is discussed. >

Bernd Blobel - One of the best experts on this subject based on the ideXlab platform.

  • Architectural Approaches for HL7-based Health Information Systems Implementation
    Methods of Information in Medicine, 2010
    Co-Authors: Diego M. López, Bernd Blobel
    Abstract:

    Objective: Information systems integration is hard, especially when semantic and business process interoperability requirements need to be met. To succeed, a unified methodology, approaching different aspects of systems architecture such as business, information, computational, engineering and technology viewPoints, has to be considered. The paper contributes with an analysis and demonstration on how the HL7 standard set can support health information systems integration. Methods: Based on the Health Information Systems Development Framework (HIS-DF), common architectural models for HIS integration are analyzed. The framework is a standard-based, consistent, comprehensive, customizable, scalable methodology that supports the design of semantically interoperable health information systems and components. Results: Three main architectural models for system integration are analyzed: the Point to Point Interface, the messages server and the mediator models. Point to Point Interface and messages server models are completely supported by traditional HL7 version 2 and version 3 messaging. The HL7 v3 standard specification, combined with service-oriented, model-driven approaches provided by HIS-DF, makes the mediator model possible. The different integration scenarios are illustrated by describing a proof-of-concept implementation of an integrated public health surveillance system based on Enterprise Java Beans technology. Conclusion: Selecting the appropriate integration architecture is a fundamental issue of any software development project. HIS-DF provides a unique methodological approach guiding the development of healthcare integration projects. The mediator model – offered by the HIS-DF and supported in HL7 v3 artifacts – is the more promising one promoting the development of open, reusable, flexible, semantically interoperable, platform-independent, service-oriented and standard-based health information systems.

  • Architectural Approaches for HL7-based Health Information Systems Implementation
    European Journal for Biomedical Informatics, 2009
    Co-Authors: Diego M. López, Bernd Blobel
    Abstract:

    Objective: Information systems integration is hard, especially when semantic and business process interoperability requirements need to be met. To succeed, a unified methodology, approaching different aspects of systems architecture such as b u s i n e s s , i n f o r m a t i o n , c o m p u - tational, engineering and techno- logy viewPoints, has to be considered. The paper contributes with an analysis and demonstration on how the HL7 standard set can support health information systems integration. Conclusion Selecting the appropriate integration architecture is a fundamental issue of any software development project. HIS-DF provides a unique methodological approach guiding the development of healthcare integration projects. The mediator model – offered by the HIS-DF and supported in HL7 v3 artifacts – is the more promising one promoting the development of open, reusable, flexible, semantically interoperable, platform- independent, service-oriented and standard-based health information systems. Methods: Based on t he Health I n f o rma- tion Systems Development Frame- work (HIS-DF), common architectural models for HIS integration are analyzed. The framework is a standard-based, consistent, comprehensive, customizable, scalable methodology that supports the design of semantically interoperable health information systems and components. Results: Three main architectural models for system integration are analyzed: the Point to Point Interface, the messages server and the mediator models. Point to Point Interface and messages server models are completely supported by traditional HL7 version 2 and version 3 messaging. The HL7 v3 standard specification, combined with service-oriented, model-driven approaches provided by HIS-DF, makes the mediator model possible. The different integration scenarios are illustrated by describing a proof-of-concept imple- mentation of an integrated public health surveillance system based on Enterprise Java Beans technology. Conclusion: Selecting the appropriate integration architecture is a fundamental issue of any software development project. HIS-DF provides a unique methodological approach guiding the development of healthcare integration projects. The mediator model – offered by the HIS-DF and supported in HL7 v3 artifacts – is the more promising one promoting the development of open, reusable, flexible, semantically interoperable, platform- independent, service-oriented and standard-based health information systems.

D. Tolmie - One of the best experts on this subject based on the ideXlab platform.

  • HIPPI: simplicity yields success
    IEEE Network, 1993
    Co-Authors: D. Tolmie, J. Renwick
    Abstract:

    The high-performance parallel Interface (HIPPI), a simplex Point-to-Point Interface for transferring data at peak data rates of 800 or 1600 Mb/s over distances of up to 25 m, is reviewed. The HIPPI physical layer, framing protocol, link encapsulation, its mapping to fiber channels, mapping to IPI-3, switch control, fiber extender, and tester are described. The role of HIPPI in networks is discussed. >

N Gangadhar - One of the best experts on this subject based on the ideXlab platform.

  • Fuzzy Logic controller Based Adaptive Dc Link Voltage Control For Common Point Interface Voltage Variations in a 3- Phase Grid Tied SPV system
    International Journal of Research, 2017
    Co-Authors: K.sai Sruthi, N Gangadhar
    Abstract:

    This proposed model deals with a three-phase two-stage grid tied SPV (solar photo-voltaic) system. The first stage is a boost converter, which serves the purpose of MPPT (maximum power Point tracking) and feeding the extracted solar energy to the DC link of the PV inverter, whereas the second stage is a two-level VSC (voltage source converter) serving as PV inverter which feeds power from a boost converter into the grid. The versatile DC voltage control helps in the decrease switching power losses.  The dc voltage is regulated using a PI controller when various control algorithms are used for load compensation. In this work, a fuzzy logic based supervisory method is proposed to improve transient performance of the dc link. The fuzzy logic based supervisor varies the proportional and integral gains of the PI controller during the transient period immediately after a load change. A considerable reduction in the error in dc link voltage during load change compared to a normal PI controller is obtained. The performance of the proposed strategy is proved using detailed simulation studies.

Diego M. López - One of the best experts on this subject based on the ideXlab platform.

  • Architectural Approaches for HL7-based Health Information Systems Implementation
    Methods of Information in Medicine, 2010
    Co-Authors: Diego M. López, Bernd Blobel
    Abstract:

    Objective: Information systems integration is hard, especially when semantic and business process interoperability requirements need to be met. To succeed, a unified methodology, approaching different aspects of systems architecture such as business, information, computational, engineering and technology viewPoints, has to be considered. The paper contributes with an analysis and demonstration on how the HL7 standard set can support health information systems integration. Methods: Based on the Health Information Systems Development Framework (HIS-DF), common architectural models for HIS integration are analyzed. The framework is a standard-based, consistent, comprehensive, customizable, scalable methodology that supports the design of semantically interoperable health information systems and components. Results: Three main architectural models for system integration are analyzed: the Point to Point Interface, the messages server and the mediator models. Point to Point Interface and messages server models are completely supported by traditional HL7 version 2 and version 3 messaging. The HL7 v3 standard specification, combined with service-oriented, model-driven approaches provided by HIS-DF, makes the mediator model possible. The different integration scenarios are illustrated by describing a proof-of-concept implementation of an integrated public health surveillance system based on Enterprise Java Beans technology. Conclusion: Selecting the appropriate integration architecture is a fundamental issue of any software development project. HIS-DF provides a unique methodological approach guiding the development of healthcare integration projects. The mediator model – offered by the HIS-DF and supported in HL7 v3 artifacts – is the more promising one promoting the development of open, reusable, flexible, semantically interoperable, platform-independent, service-oriented and standard-based health information systems.

  • Architectural Approaches for HL7-based Health Information Systems Implementation
    European Journal for Biomedical Informatics, 2009
    Co-Authors: Diego M. López, Bernd Blobel
    Abstract:

    Objective: Information systems integration is hard, especially when semantic and business process interoperability requirements need to be met. To succeed, a unified methodology, approaching different aspects of systems architecture such as b u s i n e s s , i n f o r m a t i o n , c o m p u - tational, engineering and techno- logy viewPoints, has to be considered. The paper contributes with an analysis and demonstration on how the HL7 standard set can support health information systems integration. Conclusion Selecting the appropriate integration architecture is a fundamental issue of any software development project. HIS-DF provides a unique methodological approach guiding the development of healthcare integration projects. The mediator model – offered by the HIS-DF and supported in HL7 v3 artifacts – is the more promising one promoting the development of open, reusable, flexible, semantically interoperable, platform- independent, service-oriented and standard-based health information systems. Methods: Based on t he Health I n f o rma- tion Systems Development Frame- work (HIS-DF), common architectural models for HIS integration are analyzed. The framework is a standard-based, consistent, comprehensive, customizable, scalable methodology that supports the design of semantically interoperable health information systems and components. Results: Three main architectural models for system integration are analyzed: the Point to Point Interface, the messages server and the mediator models. Point to Point Interface and messages server models are completely supported by traditional HL7 version 2 and version 3 messaging. The HL7 v3 standard specification, combined with service-oriented, model-driven approaches provided by HIS-DF, makes the mediator model possible. The different integration scenarios are illustrated by describing a proof-of-concept imple- mentation of an integrated public health surveillance system based on Enterprise Java Beans technology. Conclusion: Selecting the appropriate integration architecture is a fundamental issue of any software development project. HIS-DF provides a unique methodological approach guiding the development of healthcare integration projects. The mediator model – offered by the HIS-DF and supported in HL7 v3 artifacts – is the more promising one promoting the development of open, reusable, flexible, semantically interoperable, platform- independent, service-oriented and standard-based health information systems.