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1. |
Record Nr. |
UNINA9910452823103321 |
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Autore |
Mayada Omer |
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Titolo |
Resilience of networked infrastructure systems : analysis and measurement / / Mayada Omer ; in-house editor, Amanda Yun |
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Pubbl/distr/stampa |
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New Jersey : , : World Scientific, , 2013 |
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©2013 |
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ISBN |
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Descrizione fisica |
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1 online resource (237 p.) |
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Collana |
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Systems Research Series ; ; Volume 3 |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Reliability (Engineering) |
Infrastructure (Economics) |
Computer networks - Reliability |
Electronic books. |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Contents; Dedication; Acknowledgments; Disclaimer; Abstract; Chapter 1 - Introduction; 1.1 Need for Resilience in Infrastructure Systems; 1.2 Problem Statement; 1.3 Research Question; 1.4 Research Hypothesis and Its Implications; 1.5 Hypothesis Validation; 1.6 Research Approach; 1.7 Research Contribution; 1.8 Research Assumptions; 1.9 Dissertation Structure; Chapter 2 - Literature Review; 2.1 Resilience Definitions; 2.2 Resilience in Different Disciplines; 2.3 Resilience and Disruptions (Shocks); 2.3.1 Categories of potential disruptions to systems; 2.3.2 Disruption profile |
2.4 Methodologies for Characterizing Resilience2.5 Resilience Measurement Approaches; 2.5.1 Infrastructure resilience metrics; 2.5.2 Service infrastructures resilience metrics; 2.6 Elements of Resilience; 2.6.1 Resilience and vulnerability; 2.6.2 Resilience and adaptive capacity; 2.7 Resilience in Organizations; 2.8 Resilience and Risk Management; 2.9 Summary; Chapter 3 - Relationship Between Reliability, Robustness, Flexibility, Agility and Resilience; 3.1 Reliability; 3.1.1 Definition; 3.1.2 Reliability metrics; 3.1.3 Reliability and resilience; 3.2 Robustness; 3.2.1 Definition |
3.2.2 Robustness metrics3.2.3 Robustness and reliability; 3.2.4 |
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Robustness and resilience; 3.3 Flexibility; 3.3.1 Definition; 3.3.2 Flexibility metrics; 3.3.3 Flexibility and robustness; 3.3.4 Flexibility and resilience; 3.4 Agility; 3.4.1 Definition; 3.4.2 Agility metrics; 3.4.3 Agility and flexibility; 3.4.4 Agility and resilience; 3.5 Comparing R2FAR in Terms of Type Failures, Uncertainty and Adaptability; 3.6 Summary; Chapter 4 - Resilience-Enabling Schemes; 4.1 Scheme Identification; 4.2 Vulnerability Reduction; 4.2.1 Redundancy; 4.2.2 Diversity; 4.2.3 Hardening; 4.2.4 Capacity tolerance |
4.2.5 Modularity4.3 Increasing Adaptive Capacity Through Reorganization; 4.3.1 Resource allocation; 4.3.2 Collaboration - United we stand; 4.3.3 Preparedness; 4.3.4 Cognition; 4.4 Summary; Chapter 5 - Measuring the Resilience of Networked Infrastructure Systems; 5.1 Risk Analysis; 5.1.1 Risk assessment; 5.1.1.1 Threat identification; 5.1.1.2 Vulnerability assessment; 5.1.1.3 Consequences; 5.2 Networked Infrastructure Resilience Assessment (NIRA) Framework; 5.2.1 Boundary definition; 5.2.1.1 Spatial boundaries; 5.2.1.2 Operational boundaries; 5.2.1.3 Temporal boundaries |
5.2.1.4 Organizational boundaries5.2.2 Resilience metrics definition; 5.2.3 Network resilience and node-to-node resilience; 5.2.3.1 Network resilience; 5.2.3.2 Node-to-node resilience; 5.2.4 System modeling; 5.2.4.1 System modeling using network flow analysis; 5.2.4.2 System modeling using system dynamics; 5.2.4.3 System modeling using social network analysis; 5.2.5 Resilience assessment process; 5.2.5.1 Disruption scenarios; 5.2.6 Resilience schemes implementation and simulation; 5.2.7 Resilience scheme evaluation; 5.3 NIRA Framework: A Systems Approach for Measuring Resilience; 5.4 Summary |
Chapter 6 - Assessing the Resilience of the Global Internet Cable System |
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Sommario/riassunto |
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This volume elaborates on both the qualitative and quantitative aspects of resilience. Reviewing the literature exploring the concept of resilience in engineering, it discusses resilience in terms of the various definitions used, the methodologies proposed to characterize resilience, and the metrics put forward to quantify the resilience of specific service infrastructure systems. The review also identifies the key factors that contribute to organizational resilience.The concept of resilience is compared to other system properties such as reliability, robustness, flexibility and agility, by ta |
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2. |
Record Nr. |
UNINA9910830215703321 |
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Titolo |
LEDs for lighting applications [[electronic resource] /] / edited by Patrick Mottier |
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Pubbl/distr/stampa |
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London, : ISTE |
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Hoboken, NJ, : Wiley, c2009 |
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ISBN |
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1-282-68721-2 |
9786612687211 |
1-118-21168-5 |
0-470-61201-0 |
0-470-61029-8 |
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Descrizione fisica |
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1 online resource (298 p.) |
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Collana |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Light emitting diodes |
Electric lighting - Equipment and supplies |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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LEDs for Lighting Applications; Table of Contents; Foreword; Introduction; Chapter 1. Light-Emitting Diodes: Principles and Challenges; 1.1. History of a revolution in the world of the light sources; 1.2. LEDs and lighting; 1.3. Principle of operation, color, efficiency, lifetime and quality of LEDs; 1.3.1. White light production from LEDS: principles and challenges; 1.3.2. Lifetime; 1.3.3. Quality of LEDs; 1.4. Challenges facing LEDs; 1.5. Bibliography; Chapter 2. Substrates for III-Nitride-based Electroluminescent Diodes; 2.1. Introduction |
2.2. Crystal structure and epitaxial relation with 6H-SiC and Al2O32.3. Defects and constraints due to heteroepitaxy; 2.3.1. Dislocations; 2.3.2. Disorientation of the substrate; 2.3.3. Epitaxial stress; 2.3.4. Thermal stress; 2.4. MOVPE growth of GaN on sapphire; 2.4.1. GaN growth; 2.4.2. Standard 2D epitaxy; 2.4.3. 3D epitaxial growth; 2.4.4. Epitaxial lateral overgrow (ELO 1S); 2.4.5. Anisotropic growth; 2.4.6. Two stage ELO GaN growth (ELO 2S); 2.4.7. GaN growth using pendeo- |
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epitaxy; 2.4.8. Nano epitaxy; 2.5. Bulk nitride substrates |
2.5.1. HNPS (high nitrogen pressure solution method) for the fabrication of crystalline GaN2.5.2. Ammonothermal synthesis of GaN; 2.5.3. Halide vapor phase epitaxy (HVPE) of GaN; 2.6. Conclusion; 2.7. Bibliography; Chapter 3. III-Nitride High-Brightness Light-Emitting Diodes; 3.1. Introduction; 3.2. p-n junction in GaN; 3.3. Active region: InGaN/GaN quantum well; 3.3.1. Growth and structure; 3.3.2. Optical properties; 3.4. Radiative efficiency; 3.5. Conclusion and prospects; 3.6. Bibliography; Chapter 4. Diode Processing; 4.1. Introduction; 4.2. Orders of magnitude; 4.3. Diode configurations |
4.3.1. Conventional chip (CC)4.3.2. Flip chip (FC); 4.3.3. Vertical thin film (VTF); 4.3.4. Thin film flip chip (TFFC); 4.4. Light extraction at wafer level; 4.5. Diode processing, etching, contact deposition; 4.5.1. N-type contacts; 4.5.2. P-type contacts; 4.6. Etching; 4.7. Substrate removal; 4.8. Potential evolutions; 4.9. Bibliography; Chapter 5. Packaging; 5.1. Introduction; 5.2. Different packaging processes; 5.2.1. Historical background; 5.2.2. From the wafer to the chip; 5.2.3. Components with connection pins; 5.2.4. SMT leadform components; 5.2.5. SMT "leadless" components |
5.2.6. Other technologies5.2.7. Conclusion; 5.3. Thermal management; 5.3.1. Motivations; 5.3.2. Heat dissipation modes; 5.3.3. Thermal dissipation in LEDs; 5.3.4. Comparison of different packaging processes; 5.3.5. Conclusion; 5.4. Light extraction in LEDs; 5.4.1. Lateral light extraction in LEDs; 5.4.2. Vertical light extraction through a lens; 5.4.3. Lens/encapsulant materials; 5.4.4. Lenses and encapsulant implementation; 5.5. LED component characteristics; 5.5.1. Thermal and electrical characteristics; 5.5.2. Optical characteristics; 5.5.3. Binning; 5.5.4. Reliability |
5.6. Conclusion and trends |
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Sommario/riassunto |
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Light Emitting Diodes (LEDs) are no longer confined to use in commercial signage and have now moved firmly, and with unquestioned advantages, into the field of commercial and domestic lighting. This development was prompted in the late 1980s by the invention of the blue LED, a wavelength that had previously been missing from the available LED spectrum and which opened the way to providing white light. Since that point, LED performance (including energy efficiency) has improved dramatically, and now compares with the performance of fluorescent lights - and there remain further performance impro |
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