The Experts below are selected from a list of 60216 Experts worldwide ranked by ideXlab platform
Anastasia Loukaitou-sideris - One of the best experts on this subject based on the ideXlab platform.
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From Policy and Response to System Design and Operations: Inter-Governmental Transit Security Planning in the U.S.
Journal of Public Transportation, 2005Co-Authors: Camille N.y. Fink, Brian D. Taylor, Anastasia Loukaitou-siderisAbstract:The events of September 11th, 2001, brought the issue of transportation Security and terrorism to the forefront of civil society. Transit Security is especially challenging because of the nature of transit systems as open and accessible public places and the need to keep these systems running quickly and efficiently; transit officials cannot employ many of the Security strategies used in aviation Security. This paper examines the recent developments in transit Security Planning in the U.S. using two sources of data: 1) interviews with officials from federal agencies, a national transit industry organization, and local transit agencies, and 2) a nationwide survey of transit operators. The findings show that transit Security remains a major concern for operators who must work to balance Security needs with operations and management goals. Interagency coordination has become a crucial element of Security Planning. In addition, environmental design and public outreach and education—two strategies that received much less attention pre-September 11th—have emerged as much more important in transit Security Planning.
Epaminondas Bellos - One of the best experts on this subject based on the ideXlab platform.
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Sustainable energy development: How can the tension between energy Security and energy transition be measured and managed in South Africa?
Journal of Cleaner Production, 2018Co-Authors: Epaminondas BellosAbstract:Abstract The objective of this paper is to serve as a decision aid for energy Security policies and programmes in the context of a low carbon energy transition in South Africa. A concept-to-design prototyping matrix for energy Security Planning inclusive of energy services is presented. It is recommended that energy Security design and Planning frameworks should be self-defined and government accepted at the country level to be effective for sustainable energy development. The tension between energy Security and energy transition is identified as a systemic risk and the concept of a meta-indicator is introduced to measure this transition gap which is modelled along an adaptive frontier. Complexity is explored as one of the three hallmarks of risk, as well as in its contribution to measurement challenges. A multi-scale, multi-speed heuristic model of a socio-energy system transition is illustrated and indicative South African energy supply and demand baselines and risk indicators are measured. The ratio of useful exergy output to final energy input (25%) is advanced as the efficiency indicator “closest” and “earliest” to energy services, and a transdisciplinary monitoring and evaluation framework centred on jumping indicators is proposed for strategic monitoring and evaluative learning. Adaptive programmes are recommended because they are antifragile, and the concept of a resilience boundary is introduced for further development. A specific Planning and monitoring tool is proffered together with other methodological options for future needs based applications.
Edgar Weippl - One of the best experts on this subject based on the ideXlab platform.
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Ontology based IT-Security Planning
2006 12th Pacific Rim International Symposium on Dependable Computing (PRDC'06), 2006Co-Authors: Stefan Fenz, Edgar WeipplAbstract:IT-Security has become a much diversified field and small and medium sized enterprises (SMEs), in particular, do not have the financial ability to implement a holistic IT-Security approach. We thus propose a Security ontology, to provide a solid base for an applicable and holistic IT-Security approach for SMEs, enabling low-cost risk management and threat analysis
Mauridhi Hery Purnomo - One of the best experts on this subject based on the ideXlab platform.
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Real Time Power Quality Analysis for Industrial Power Systems Based on Fast S-Transform
International Review of Electrical Engineering-iree, 2017Co-Authors: Margo Pujiantara, Anang Tjahjono, Ardyono Priyadi, Dimas Okky Anggriawan, Mauridhi Hery PurnomoAbstract:Power Quality (PQ) is a key issue for power systems measurement, operation, protection, Security, Planning and economy since it will lead to relay malfunction, aging, higher electricity costs and other disadvantages. This problem must necessarily be quickly monitored, investigated, and mitigated for Security power systems operation. Therefore, real-time PQ analysis is an interesting research to be developed. One method for analyze this problem is Stockwell Transform (ST) widespread application in signal analysis. However, the high computational complexity of ST is a challenge that needs to be solved. Fast Stockwell Transform (FST) has lower computational complexity compared to ST. This paper proposes Power Quality Analysis (PQA) using the FST method and its implemented in industrial power systems. The FST is used to extract the PQ signal from the time-frequency domain. The implementation of FST using STM32F407VGT6 microcontroller is introduced. The simulation and application result is compared to the several common methods to validate the accuracy and efficiency of the proposed algorithm. The simulation results demonstrate that this algorithm can accurately detect the harmonic, voltage sag, voltage flicker, oscillatory transient, notch and spike. The experiment results of the harmonic are compared with the well known commercial product, showing a good agreement.
Camille N.y. Fink - One of the best experts on this subject based on the ideXlab platform.
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From Policy and Response to System Design and Operations: Inter-Governmental Transit Security Planning in the U.S.
Journal of Public Transportation, 2005Co-Authors: Camille N.y. Fink, Brian D. Taylor, Anastasia Loukaitou-siderisAbstract:The events of September 11th, 2001, brought the issue of transportation Security and terrorism to the forefront of civil society. Transit Security is especially challenging because of the nature of transit systems as open and accessible public places and the need to keep these systems running quickly and efficiently; transit officials cannot employ many of the Security strategies used in aviation Security. This paper examines the recent developments in transit Security Planning in the U.S. using two sources of data: 1) interviews with officials from federal agencies, a national transit industry organization, and local transit agencies, and 2) a nationwide survey of transit operators. The findings show that transit Security remains a major concern for operators who must work to balance Security needs with operations and management goals. Interagency coordination has become a crucial element of Security Planning. In addition, environmental design and public outreach and education—two strategies that received much less attention pre-September 11th—have emerged as much more important in transit Security Planning.