• Cascading failures may occur when one part of the system fails. (wikipedia.org)
  • While these effects can continue until an entire system fails, the majority of the failures occur extremely quickly. (americasgenerators.com)
  • By combining concepts from statistical physics and the physics of power flows and taking weather correlations into account, we rank line failures according to their likelihood and establish the most likely way such failures occur and propagate. (cwi.nl)
  • The model accounts for both the failure of transmission lines and the desynchronization of power generators and incorporates the transient dynamics between successive steps of the cascade. (northwestern.edu)
  • Listen Free to Cascade Failure: A Novel by L. M. Sagas with a Free Trial. (audiobooks.com)
  • L. M. Sagas' debut, Cascade Failure, is a high-octane, sci-fi adventure blending J. S. Dewes' Divide series with Firefly. (audiobooks.com)
  • Understanding the redistribution of power flow is crucial to understanding the dynamics of cascading failures. (caltech.edu)
  • Hierarchical heterogeneity is taken into account for load redistribution after node failure so that the additional load is allocated to the same or higher layer nodes. (oldcitypublishing.com)
  • The collapse is analyzed in terms of a cascading sequence of pillar-floor failure using established principles of failure stability. (cdc.gov)
  • These results offer new insights into the current understanding of cascading dynamics, with potential implications for control interventions. (northwestern.edu)
  • In assessing failure rates, drug efficacy, election outcomes, hurricane paths and more, we are seeing the results of continued efforts to quantify the ideas of risk and reliability. (maa.org)
  • To assess progress 5 years after program initia- included in the cascade of care when those outcomes occurred tion, CNHS analyzed deidentified health record data. (cdc.gov)
  • John J.V. McMurray, MD, BSc, MB ChB (Hons), professor at the British Heart Foundation Cardiovascular Research Centre of the University of Glasgow, and consultant cardiologist at Glasgow's Queen Elizabeth Hospital, is interviewed about the Aliskiren Trial to Minimize OutcomeS in Patients with HEart failuRE (ATMOSPHERE), which was a late-breaking clinical trial presentation at the 2016 American College of Cardiology (ACC) Scientific Sessions. (medscape.com)
  • In this framework, we show that a cascade event is a phase-space transition from an equilibrium state with high energy to an equilibrium state with lower energy, which can be suitably described in a closed form using a global Hamiltonian-like function. (northwestern.edu)
  • Here we derive a continuous model to advance our understanding of cascading failures in power-grid networks. (northwestern.edu)
  • Another common technique is to calculate a safety margin for the system by computer simulation of possible failures, to establish safe operating levels below which none of the calculated scenarios is predicted to cause cascading failure, and to identify the parts of the network which are most likely to cause cascading failures. (wikipedia.org)
  • Although undesired, this can help speed up the recovery from this failure as connections will time out, and other nodes will give up trying to establish connections to the section(s) that have become cut off, decreasing load on the involved nodes. (wikipedia.org)
  • This has occurred mainly as mortality prediction using SIRS alone is poor compared with Sequential Organ Failure Assessment (SOFA). (medscape.com)
  • In this brief communication, the authors report results from a recent investigation carried out by field surveys and remote sensing data, highlighting the role of anthropogenic factors and catastrophic failures in a series of check dams in intensifying the impacts of the 2022 Emamzadeh Davood event. (preventionweb.net)
  • However, if such structures are collapsed or partially damaged due to extreme events, poor maintenance, and/or their improper localization, the released torrent sediments from these structures can exacerbate the hydrological impact of the flood and sediment-related disasters in downstream areas, resulting in a catastrophic phenomenon similar to the failure of a landslide dam. (preventionweb.net)
  • Description of a large catastrophic failure in a southwestern Wyoming Trona Mine. (cdc.gov)
  • Cascade failures are a relatively recent development, with the massive increase in traffic and the high interconnectivity between systems and networks. (wikipedia.org)
  • Cascading failure also describes other interconnected systems, including commercial power grids, financial systems, technical systems (such as data servers), and even personnel networks. (americasgenerators.com)
  • We model power grids transporting electricity generated by intermittent renewable sources as complex networks, where line failures can emerge indirectly by noisy power input at the nodes. (cwi.nl)
  • We focus on controlling one of the most common and frequent failures of these networks, which are flight delays. (nature.com)
  • English We propose a novel capacity model for complex networks against cascading failure. (unifr.ch)
  • Through the numerical and simulation analyses, the effectiveness of the proposed method in this paper is proved and this offers a foundation for further research on cascading failures of directed networks. (oldcitypublishing.com)
  • Prediction of extubation failure in the paediatric cardiac ICU using machine learning and high-frequency physiologic data. (cdc.gov)
  • This failure process cascades through the elements of the system like a ripple on a pond and continues until substantially all of the elements in the system are compromised and/or the system becomes functionally disconnected from the source of its load. (wikipedia.org)
  • To study cascading failure of a directed hierarchical network, the difference between a directed network cascading failure process and an undirected network cascading failure process is analyzed. (oldcitypublishing.com)
  • is initiated when the TNFR1 protein, bound to the TNF protein, is brought into the cell and triggers a process known as the caspase cascade. (medlineplus.gov)
  • Cascading failure is common in power grids when one of the elements fails (completely or partially) and shifts its load to nearby elements in the system. (wikipedia.org)
  • A cascading failure occurs when one part of a complex system fails, therefore triggering the failure of other parts of the system due to an increased load on those other parts. (americasgenerators.com)
  • This study describes methods of limiting cascading pillar failure, which occurs when a pillar in a mine layout fails, transferring its load to other pillars, causing failure. (cdc.gov)
  • Of course, there are theoretical reasons why that is an attractive tool to use because renin is at the start of the cascades, and a lot of the treatments that we use actually cause a reflex increase in renin. (medscape.com)
  • This report describes the calculating 1) the proportion of persons who completed each most comprehensive CNHS HCV cascade of care, including five years of program data. (cdc.gov)
  • For example, under certain conditions a large power grid can collapse after the failure of a single transformer. (wikipedia.org)
  • Among the events that hit the company directly last year was the collapse of TerraLUNA last May after the failure of Terra's UST stablecoin and LUNA governance token. (9188kiss.net)
  • In standby generators, this phenomenon can be seen when all of the units synchronized in AC parallel fail due to a failure mode on one generator. (americasgenerators.com)
  • In this paper, we study cascading failures of power grids under the extended model. (uri.edu)
  • And the directed scale-free cascading failure model based on the hierarchical structure is proposed. (oldcitypublishing.com)
  • We show that the value of this measure increases when (more) link failure occurs. (caltech.edu)
  • This "cascading" increases over time and the root cause is often difficult to pinpoint. (americasgenerators.com)
  • During some types of heart failure, the force-frequency relationship may become negative, so that myocardial contractility decreases as heart rate increases above a certain rate. (msdmanuals.com)
  • Data classification techniques are used to assess infrastructure behaviour changes and demonstrate an approach for organisations to plan for cascading effects. (ljmu.ac.uk)
  • Cascading failure is a common effect seen in high voltage systems, where a single point of failure (SPF) on a fully loaded or slightly overloaded system results in a sudden spike across all nodes of the system. (wikipedia.org)
  • A cascade failure can affect large groups of people and systems. (wikipedia.org)
  • The symptoms of a cascade failure include: packet loss and high network latency, not just to single systems, but to whole sections of a network or the internet. (wikipedia.org)
  • Patterns to avoid cascading failure in highly distributed systems with Nic Jackson! (skillsmatter.com)
  • In network systems, a local perturbation can amplify as it propagates, potentially leading to a large-scale cascading failure. (northwestern.edu)
  • Failures result in devastating impact on the economy, communication, e-government systems, national defence and society as a whole. (ljmu.ac.uk)
  • Widespread cascading failures are triggered by a single event. (americasgenerators.com)
  • NERC (North America Electric Reliability Council) requires the transmission network to be (N-1)-secure, i.e., to have sufficient supply to satisfy demand in the event of the failure of any single resource in the network. (optimization-online.org)
  • We study the monotonicity of a quadratic function of branch power flow with respect to link failure and load shedding, respectively. (caltech.edu)
  • A common occurrence during a cascade failure is a walking failure, where sections go down, causing the next section to fail, after which the first section comes back up. (wikipedia.org)
  • Sections on stochastic models of failure include discussion on failure rates, common lifetime models, accelerated tests, and dose-response experiments. (maa.org)
  • The Nov. 2009 blackout that plunged millions of Brazilians into darkness for up to six hours was not the result of cyber saboteurs, but instead an unusual confluence of independent factors that conspired to cause a cascading power failure, according to a classified cable from the U.S. embassy in Brazil. (krebsonsecurity.com)
  • Geraldes called it the worst possible configuration of factors that led to a cascade effect. (krebsonsecurity.com)
  • The dynamic nature of the failure is thought to stem from geological and mine geometry factors resulting in a "soft" pillar-loading system. (cdc.gov)
  • The induction cascades of early morphogenesis involve numerous growth factors, homeobox genes, and paired domain genes. (medscape.com)
  • A cascading failure is a failure in a system of interconnected parts in which the failure of one or few parts leads to the failure of other parts, growing progressively as a result of positive feedback. (wikipedia.org)
  • CNHS is the result after treatment completion but before the SVR12 due largest tribally operated health system in the United States, date were not included in the last two stages of the cascade of providing health care for over 100,000 AI/AN persons in care (i.e., an SVR12 visit and laboratory-confirmed SVR12). (cdc.gov)
  • Utilizing these monotonicity properties, we show that the failure of a link will cause the power flow over its adjacent link to have a change in the same direction (away or towards their commonly incident bus) as the original flow over the failed link. (caltech.edu)
  • The results demonstrate that the proposed approaches can reveal the power grid vulnerability in terms of causing cascading failures more effectively than the comparison approaches. (uri.edu)
  • Occasionally, people with TRAPS develop amyloidosis, an abnormal buildup of a protein called amyloid in the kidneys that can lead to kidney failure. (medlineplus.gov)
  • In the same way that you do not have to check every time for nil or errorcode in your code, my code *reads* like it's solely concerned with the `Success` track (what Eric Meijer calls "the happy path"), but in fact, at the end of the expression, if at one point something produced a `Failure`, it's been propagated along perfectly. (ericasadun.com)
  • 5. Cascade Investment, L.L.C. ("Cascade") is a limited liability company organized under the laws of Delaware with its principal place of business at 2365 Carillon Point, Kirkland, Washington 98033. (justice.gov)
  • In this paper, an approach for identifying the effects of cascading failures in multiple critical infrastructures is portrayed. (ljmu.ac.uk)
  • In particular, the simulation is used to assess the resulting effect of a telecommunications failure on the service provisions of other critical infrastructures. (ljmu.ac.uk)
  • Progress along each step of the cascade of care was assessed by after the start of their program ( 3 , 6 , 7 ). (cdc.gov)
  • When you build this complex system, you also introduce the possibility of a cascading failure . (americasgenerators.com)
  • From this function, we show that a perturbed system cannot always reach the equilibrium state predicted by quasi-steady-state cascade models, which would correspond to a reduced number of failures, and may instead undergo a larger cascade. (northwestern.edu)
  • The level of dependence each infrastructure has on another means that an individual failure has the potential to cascade and impact vital service provision. (ljmu.ac.uk)
  • This surge current can induce the already overloaded nodes into failure, setting off more overloads and thereby taking down the entire system in a very short time. (wikipedia.org)
  • This Web page is part of Techniques and Failures for Web Content Accessibility Guidelines 2.0 (see the latest version of this document ). (w3.org)
  • Monitoring the operation of a system, in real-time, and judicious disconnection of parts can help stop a cascade. (wikipedia.org)
  • As more parts of the system fail, they continue to cause failure in an increased number of additional pieces throughout the system. (americasgenerators.com)
  • Cascade Business News (CBN), Central Oregon's business newspaper, is local and family-owned and operated by Jeff Martin. (cascadebusnews.com)
  • The reported cascade of care is based on a modified infection cases were estimated for 2020 ( 1 , 2 ). (cdc.gov)
  • treatment or Alaska Native (AI/AN) persons are disproportionately completion was not included in the cascade as a distinct stage of affected by HCV infection and experienced the highest rates care, but completion of HCV treatment among those included of acute HCV infection (2.1 cases per 100,000 persons) and in the cascade was assessed. (cdc.gov)
  • Although not included in the cascade of care, treatment gaps in treatment initiation after linkage to care and confirma- completion, defined as documentation by the provider that tion of hepatitis C cure with SVR12 testing. (cdc.gov)