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Design of Resilient Sensor Networks Balancing Resilience and Efficiency

International Journal of Disaster Risk Science 2024年第1期15卷 107-115页

作者： Sergey N.Vecherin Kiril D.Ratmanski luke hogewood.igor linkov Cold Regions Research and Engineering Laboratory Engineering Research and Development CenterHanoverNH 03755USA Environmental Laboratory Engineering Research and Development CenterVicksburgMS 39180USA

In recent years,the notion of resilience has been developed and applied in many technical areas,becoming exceptionally pertinent to disaster risk *** a disaster situation,accurate sensing information is the key to efficient recovery *** general,resilience aims to minimize the impact of disruptions to systems through the fast recovery of critical functionality,but resilient design may require redundancy and could increase *** this article,we describe a method based on binary linear programming for sensor network design balancing efficiency with *** application of the developed framework is demonstrated for the case of interior building surveillance utilizing infrared sensors in both twoand three-dimensional *** method provides optimal sensor placement,taking into account critical functionality and a desired level of resilience and considering sensor type and *** problem formulation,resilience requirements,and application of the optimization algorithm are described in *** of sensor locations with and without resilience requirements shows that resilient configuration requires redundancy in number of sensors and their intelligent *** tasks are successfully solved by the described method,which can be applied to strengthen the resilience of sensor networks by *** proposed methodology is suitable for large-scale optimization problems with many sensors and extensive coverage areas.

关键词： Binary linear programming Optimal sensor placement Redundant networks Resilience and efciency Resilient sensor networks

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Shorebird patches as fingerprints of fractal coastline fluctuations due to climate change

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Ecological Processes 2012年第1期1卷 33-49页

作者： Matteo Convertino Adam Bockelie Gregory A Kiker Rafael Munoz-Carpena igor linkov Department of Agricultural and Biological Engineering-IFAS University of FloridaGainesvilleFLUSA Contractor at the Risk and Decision Science Team Environmental LaboratoryEngineer Research and Development CenterUS Army Corps of EngineersConcordMAUSA Florida Climate Institute UF-FSUc/o Frazier Rogers HallGainesvilleFL USA Department of Civil and Environmental Engineering Massachusetts Institute of TechnologyCambridgeMAUSA Department of Earth Atmosphericand Planetary ScienceMassachusetts Institute of TechnologyCambridgeMAUSA Risk and Decision Science Team Environmental LaboratoryEngineer Research and Development CenterUS Army Corps of EngineersConcordMAUSA Department of Engineering and Public Policy Carnegie Mellon UniversityPittsburghPAUSA.

Introduction:The Florida coast is one of the most species-rich ecosystems in the *** paper focuses on the sensitivity of the habitat of threatened and endangered shorebirds to sea level rise induced by climate change,and on the relationship of the habitat with the coastline *** consider the resident Snowy Plover(Charadrius alexandrinus nivosus),and the migrant Piping Plover(Charadriusmelodus)and Red Knot(Calidris canutus)along the Gulf Coast of Mexico in ***:We analyze and model the coupled dynamics of habitat patches of these imperiled shorebirds and of the shoreline geomorphology dictated by land cover change with consideration of the coastal *** land cover is modeled from 2006 to 2100 as a function of the A1B sea level rise scenario rescaled to 2 *** a maximum-entropy habitat suitability model and a set of macroecological criteria we delineate breeding and wintering patches for each year ***:Evidence of coupled ecogeomorphological dynamics was found by considering the fractal dimension of shorebird occurrence patterns and of the coastline.A scaling relationship between the fractal dimensions of the species patches and of the coastline was *** predicted power law of the patch size emerged from scale-free habitat patterns and was validated against 9 years of *** predict an overall 16%loss of the coastal landforms from *** the changes in the coastline that cause habitat loss,fragmentation,and variations of patch connectivity,shorebirds self-organize by preserving a power-law distribution of the patch size in ***,the probability of finding large patches is predicted to be smaller in 2100 than in *** Piping Plover showed the highest fluctuation in the patch fractal dimension;thus,it is the species at greatest risk of ***:We propose a parsimonious modeling framework to capture macroscale ecogeomorphological patterns of coastal *** results sugg

关键词： Land cover change Coastal wetlands Coastline complexity Fractal dimension Habitat suitability Patches Sea level rise

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Business Continuity Management,Operational Resilience,and Organizational Resilience:Commonalities,Distinctions,and Synthesis

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International Journal of Disaster Risk Science 2023年第5期14卷 713-721页

作者： S.E.Galaitsi Elizaveta Pinigina Jeffrey M.Keisler Gianluca Pescaroli Jesse M.Keenan igor linkov US Army Engineer Research and Development Center VicksburgMS39180USA College of Management University of Massachusetts BostonBostonMA02125USA Institute for Risk and Disaster Reduction University College LondonLondonWC1E 6BTUK School of Architecture Tulane UniversityNew OrleansLA70118USA

The concepts of business continuity management,operational resilience,and organizational resilience each refer to actions that businesses and organizations can take in anticipating and responding to ***,the existing definitions and usages are difficult to differentiate due to overlapping objectives,implementation processes,and *** article examines definitions and approaches for these three concepts and suggest a framework to operationalize methods and tools relevant to *** definitions emphasize three dyads:risk versus resilience;organizational processes versus assets;and normal operating conditions versus crisis *** these dyads to differentiate the concepts of business continuity management,operational resilience,and organizational resilience can support planners in clarifying objectives and identifying which approach will be most beneficial as businesses or organizations plan for and encounter *** article evaluates these concepts by examining illustrative examples of disruptions and responses.

关键词： Business continuity management Disruptions Operational resilience Organizational resilience

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Association of aneurysmatic subarachnoid hemorrhage rate with environmental changes or emotional bursts

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Chinese Neurosurgical Journal 2023年第2期9卷 148-151页

作者： Athanasios K.Petridis igor Fischer Humajoun Maslehaty Heinrich Heine University Medical SchoolDusseldorfGermany Department of Neurosurgery St.Luke HospitalThessalonikiGreece Informatics and Data Science Department of NeurosurgeryHeinrich Heine UniversityMoorenstr.540225 DusseldorfGermany Department of Neurosurgery St.Vinzenz-HospitalDinslakenGermany

Introduction In the present letter we share the results of an analysis of more than 140,000 non traumatic arterial subarachnoid hemorrhages whereas the majority of them is expected to be after aneurysm rupture,in which we investigate a possible correlation of climatic changes and emotional bursts as correlating factors for such a *** We obtained the daily number of SAH from 2006 to 2018 for males and females from the German National statistics *** ICD codes provided to us were I60.1-I60.7,which are SAHs originating from intracranial arteries and excluding traumatic SAH and other not specified *** An increase of mean SAH per day could be seen in winter compared to summer and family events seemed to have a protective effect against aneurysmal *** 6.55 more women per day suffer an SAH compared to *** There is a statistical significant higher risk of aneurysm ruptures in winter and in females,and a statistical lower number in Mother’s day.

关键词： Brain aneurysm Subarachnoid haemorrhage Emotional burst

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