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

Raj Samani - One of the best experts on this subject based on the ideXlab platform.

  • applied cyber security and the smart grid implementing security controls into the modern power infrastructure
    2013
    Co-Authors: Eric D. Knapp, Raj Samani
    Abstract:

    Many people think of the Smart Grid as a power Distribution Group built on advanced smart metering-but that's just one aspect of a much larger and more complex system. The "Smart Grid" requires new technologies throughout energy generation, transmission and Distribution, and even the homes and businesses being served by the grid. This also represents new information paths between these new systems and services, all of which represents risk, requiring a more thorough approach to where and how cyber security controls are implemented. This insight provides a detailed architecture of the entire Smart Grid, with recommended cyber security measures for everything from the supply chain to the consumer. Discover the potential of the Smart Grid Learn in depth about its systems See its vulnerabilities and how best to protect it Table of Contents Introduction Chapter 1: What is the Smart Grid? Chapter 2:?Smart Grid Network Architecture Chapter 3: Hacking the Smart Grid Chapter 4: Privacy Concerns with the Smart Grid Chapter 5: Security Models for SCADA, ICS and Smart Grid Chapter 6: Securing the Smart Grid Chapter 7: Securing the Supply Chain Chapter 8: The Future of the Grid Appendix A: Reference Models and Architectures Appendix B: Continued Reading Glossary

  • Applied Cyber Security and the Smart Grid: Implementing Security Controls into the Modern Power Infrastructure
    Applied Cyber Security and the Smart Grid: Implementing Security Controls into the Modern Power Infrastructure, 2013
    Co-Authors: Eric D. Knapp, Raj Samani
    Abstract:

    Many people think of the Smart Grid as a power Distribution Group built on advanced smart metering-but thatâ??s just one aspect of a much larger and more complex system. The "Smart Grid" requires new technologies throughout energy generation, transmission and Distribution, and even the homes and businesses being served by the grid. This also represents new information paths between these new systems and services, all of which represents risk, requiring a more thorough approach to where and how cyber security controls are implemented. This insight provides a detailed architecture of the entire Smart Grid, with recommended cyber security measures for everything from the supply chain to the consumer. © 2013 Elsevier Inc. All rights reserved.

Joong Koo Kang - One of the best experts on this subject based on the ideXlab platform.

  • Relationship between hypometabolic patterns and ictal scalp EEG patterns in patients with unilateral hippocampal sclerosis: An FDG–PET study
    Epilepsy Research, 2009
    Co-Authors: Ki Chun Im, Lee Jk, Seok Ho Hong, Young Joo No, Joong Koo Kang
    Abstract:

    Summary This study was to explore the relationship between scalp ictal EEG patterns and interictal hypometabolic patterns in hippocampal sclerosis-associated mesial temporal lobe epilepsy (HS-MTLE) and determine the clinical significance of interictal hypometabolic patterns. Twenty-five patients were classified into 2 Groups based on initial ictal discharge (IID) frequency on scalp EEG: (a) those with a sustained regular 5- to 9-Hz rhythm with a restricted temporal or subtemporal Distribution (Group 1, N = 9); and (b) those with an irregular 2- to 5-Hz rhythm with a widespread Distribution (Group 2, N = 16). Using statistical parametric mapping, the PET results of each Group were compared with age- and sex-matched controls to identify regions of significant hypometabolism, and the clinical characteristics were compared. Group 1 showed focal hypometabolism confined to the ipsilateral temporal lobe, whereas Group 2 showed widespread hypometabolism in the ipsilateral temporal lobe, insular cortex and anterior part of the putamen. The two Groups showed no significant differences in clinical characteristics. Among semiologic features, dystonic limb posturing was more frequently observed in Group 2 (p = 0.03). In summary, scalp EEG IID patterns in HS-MTLE can be important in determining hypometabolic patterns on interictal PET. Differences in hypometabolic patterns may reflect preferential pathways of ictal propagation rather than intrinsic epileptogenic regions.

  • Relationship between hypometabolic patterns and ictal scalp EEG patterns in patients with unilateral hippocampal sclerosis: An FDG-PET study.
    Epilepsy research, 2009
    Co-Authors: Ki Chun Im, Seok Ho Hong, Young Joo No, Joong Koo Kang
    Abstract:

    This study was to explore the relationship between scalp ictal EEG patterns and interictal hypometabolic patterns in hippocampal sclerosis-associated mesial temporal lobe epilepsy (HS-MTLE) and determine the clinical significance of interictal hypometabolic patterns. Twenty-five patients were classified into 2 Groups based on initial ictal discharge (IID) frequency on scalp EEG: (a) those with a sustained regular 5- to 9-Hz rhythm with a restricted temporal or subtemporal Distribution (Group 1, N=9); and (b) those with an irregular 2- to 5-Hz rhythm with a widespread Distribution (Group 2, N=16). Using statistical parametric mapping, the PET results of each Group were compared with age- and sex-matched controls to identify regions of significant hypometabolism, and the clinical characteristics were compared. Group 1 showed focal hypometabolism confined to the ipsilateral temporal lobe, whereas Group 2 showed widespread hypometabolism in the ipsilateral temporal lobe, insular cortex and anterior part of the putamen. The two Groups showed no significant differences in clinical characteristics. Among semiologic features, dystonic limb posturing was more frequently observed in Group 2 (p=0.03). In summary, scalp EEG IID patterns in HS-MTLE can be important in determining hypometabolic patterns on interictal PET. Differences in hypometabolic patterns may reflect preferential pathways of ictal propagation rather than intrinsic epileptogenic regions.

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

  • applied cyber security and the smart grid implementing security controls into the modern power infrastructure
    2013
    Co-Authors: Eric D. Knapp, Raj Samani
    Abstract:

    Many people think of the Smart Grid as a power Distribution Group built on advanced smart metering-but that's just one aspect of a much larger and more complex system. The "Smart Grid" requires new technologies throughout energy generation, transmission and Distribution, and even the homes and businesses being served by the grid. This also represents new information paths between these new systems and services, all of which represents risk, requiring a more thorough approach to where and how cyber security controls are implemented. This insight provides a detailed architecture of the entire Smart Grid, with recommended cyber security measures for everything from the supply chain to the consumer. Discover the potential of the Smart Grid Learn in depth about its systems See its vulnerabilities and how best to protect it Table of Contents Introduction Chapter 1: What is the Smart Grid? Chapter 2:?Smart Grid Network Architecture Chapter 3: Hacking the Smart Grid Chapter 4: Privacy Concerns with the Smart Grid Chapter 5: Security Models for SCADA, ICS and Smart Grid Chapter 6: Securing the Smart Grid Chapter 7: Securing the Supply Chain Chapter 8: The Future of the Grid Appendix A: Reference Models and Architectures Appendix B: Continued Reading Glossary

  • Applied Cyber Security and the Smart Grid: Implementing Security Controls into the Modern Power Infrastructure
    Applied Cyber Security and the Smart Grid: Implementing Security Controls into the Modern Power Infrastructure, 2013
    Co-Authors: Eric D. Knapp, Raj Samani
    Abstract:

    Many people think of the Smart Grid as a power Distribution Group built on advanced smart metering-but thatâ??s just one aspect of a much larger and more complex system. The "Smart Grid" requires new technologies throughout energy generation, transmission and Distribution, and even the homes and businesses being served by the grid. This also represents new information paths between these new systems and services, all of which represents risk, requiring a more thorough approach to where and how cyber security controls are implemented. This insight provides a detailed architecture of the entire Smart Grid, with recommended cyber security measures for everything from the supply chain to the consumer. © 2013 Elsevier Inc. All rights reserved.

Frank Fischer - One of the best experts on this subject based on the ideXlab platform.

  • Specifying computer-supported collaboration scripts
    International Journal of Computer-Supported Collaborative Learning, 2007
    Co-Authors: Lars Kobbe, Andreas Harrer, Armin Weinberger, Pierre Dillenbourg, Raija Hämäläinen, Päivi Häkkinen, Frank Fischer
    Abstract:

    Collaboration scripts are activity programs which aim to foster collaborative learning by structuring interaction between learners. Computer-supported collaboration scripts generally suffer from the problem of being restrained to a specific learning platform and learning context. A standardization of collaboration scripts first requires a specification of collaboration scripts that integrates multiple perspectives from computer science, education and psychology. So far, only few and limited attempts at such specifications have been made. This paper aims to consolidate and expand these approaches in light of recent findings and to propose a generic framework for the specification of collaboration scripts. The framework enables a description of collaboration scripts using a small number of components (participants, activities, roles, resources and Groups) and mechanisms (task Distribution, Group formation and sequencing).

  • Specifying Computer-Supported Collaboration Scripts
    2007
    Co-Authors: Lars Kobbe, Andreas Harrer, Armin Weinberger, Pierre Dillenbourg, Raija Hämäläinen, Päivi Häkkinen, Frank Fischer
    Abstract:

    Collaboration scripts are activity programs which aim to foster collaborative learning by structuring interaction between learners. Computer-supported collaboration scripts generally suffer from the problem of being restrained to a specific learning platform and learning context. A standardization of collaboration scripts first requires a specification of collaboration scripts that integrates multiple perspectives from computer science, education and psychology. So far, only few and limited attempts at such specifications have been made. This paper aims to consolidate and expand these approaches in light of recent findings and to propose a generic framework for the specification of collaboration scripts. The framework enables a description of collaboration scripts using a small number of components (participants, activities, roles, resources and Groups) and mechanisms (task Distribution, Group formation and sequencing). (http://www.springerlink.com/content/6286w8235q818664/)

Lars Kobbe - One of the best experts on this subject based on the ideXlab platform.

  • Specifying Computer-Supported Collaboration Scripts
    2007
    Co-Authors: Lars Kobbe, Andreas Harrer, Armin Weinberger, Pierre Dillenbourg, Raija Hämäläinen, Päivi Häkkinen, Frank Fischer
    Abstract:

    Collaboration scripts are activity programs which aim to foster collaborative learning by structuring interaction between learners. Computer-supported collaboration scripts generally suffer from the problem of being restrained to a specific learning platform and learning context. A standardization of collaboration scripts first requires a specification of collaboration scripts that integrates multiple perspectives from computer science, education and psychology. So far, only few and limited attempts at such specifications have been made. This paper aims to consolidate and expand these approaches in light of recent findings and to propose a generic framework for the specification of collaboration scripts. The framework enables a description of collaboration scripts using a small number of components (participants, activities, roles, resources and Groups) and mechanisms (task Distribution, Group formation and sequencing). (http://www.springerlink.com/content/6286w8235q818664/)

  • Specifying computer-supported collaboration scripts
    International Journal of Computer-Supported Collaborative Learning, 2007
    Co-Authors: Lars Kobbe, Andreas Harrer, Armin Weinberger, Pierre Dillenbourg, Raija Hämäläinen, Päivi Häkkinen, Frank Fischer
    Abstract:

    Collaboration scripts are activity programs which aim to foster collaborative learning by structuring interaction between learners. Computer-supported collaboration scripts generally suffer from the problem of being restrained to a specific learning platform and learning context. A standardization of collaboration scripts first requires a specification of collaboration scripts that integrates multiple perspectives from computer science, education and psychology. So far, only few and limited attempts at such specifications have been made. This paper aims to consolidate and expand these approaches in light of recent findings and to propose a generic framework for the specification of collaboration scripts. The framework enables a description of collaboration scripts using a small number of components (participants, activities, roles, resources and Groups) and mechanisms (task Distribution, Group formation and sequencing).

  • CSCL - Conceptual and computational issues in the formalization of collaboration scripts
    Proceedings of the 8th iternational conference on Computer supported collaborative learning - CSCL'07, 2007
    Co-Authors: Andreas Harrer, Lars Kobbe, Nils Malzahn
    Abstract:

    Collaboration scripts aim at facilitating social and cognitive processes of collaborative learning by shaping the way learners interact with each other. Computer-supported collaboration scripts generally suffer from the problem of being restrained to a specific learning platform and learning context. Researchers are therefore aiming for a formalization of collaboration scripts on both a conceptual and a computational level. A recently developed framework allows to describe collaboration scripts using a small number of components (participants, activities, roles, resources and Groups) and mechanisms (task Distribution, Group formation and sequencing). Based on these, a formal, graphical modelling tool has been developed and tested with several example scripts.