Blackout

About: Blackout is a research topic. Over the lifetime, 2088 publications have been published within this topic receiving 30433 citations.

Alcohol-Induced Blackouts and Other Negative Outcomes During the Transition Out of College

Abstract: Objective:There is considerable debate about the prospective association between alcohol-dependence symptoms and alcohol-related blackouts. The goal of this study was to examine the associations among alcohol-dependence symptoms, blackouts, and social and emotional consequences during the transition out of college.Method:Participants (N = 829; 66% female) were part of a 6-year longitudinal study designed to explore alcohol use and risky behaviors during and after college. Data for these analyses were from Years 4 and 5 of data collection, which most closely corresponded to the transition out of college. Using cross-lagged models, we tested the prospective associations of alcohol-dependence symptoms, blackout frequency, and social and emotional consequences.Results:Alcohol-dependence symptoms in Year 4 predicted increased frequency of blackouts and social and emotional consequences during the subsequent year. Blackouts during Year 4 also significantly predicted increased alcohol-related social and emotiona...

News Briefing: Cyber security - Ukraine grid hack is wake-up call for network operators

Abstract: A cyber attack on Ukraine's power grid that caused a six-hour blackout before Christmas raises concerns about the cyber-prepardness of infrastructure operators around the world.

Content blackout determinations for playback of video streams on portable devices

Abstract: Content, such as audio or video content, is streamed to portable devices based on an entitlement determination that includes determining the location of the portable device and whether the content is subject to blackout restrictions. In one implementation, requests may be received for content that is to be streamed to a portable device and a location of the portable device may be determined. Entitlements may be determined, where the entitlements define whether the content is permitted to be viewed by the portable device, where the entitlements are determined based at least on the indication of the location of the portable device and based on blackout restrictions applicable to the content. The content may be selectively streamed to the portable device based on the applicable blackout restrictions.

A graph theory based new approach for power system restoration

Abstract: This paper presents a novel graph theory based approach for restoring large scale power systems affected by complete blackouts. The proposed graph theory based method assesses the power system in blackout and represents the required information in a graph. The graph is initially used to determine the sectionalizing strategy. To do so, an un-normalized spectral clustering algorithm is implemented. The method then applies parallel power system restoration, restoring the created islands in parallel. Thus, the restoration process is speeded up. An algorithm for computing the k-shortest simple paths from the blackstart unit in each island to the non-blackstart units and loads in the same island is then carried out. By implementing the proposed method, cranking power can be rapidly sent to non-blackstart units and loads can be picked up quickly. The new graph theory based method is tested on the New England 39-bus test system. Simulation results are used to demonstrate the effectiveness of the proposed method on restoring systems affected by complete blackouts.