نتایج جستجو برای: blackout

تعداد نتایج: 1044  

Journal: :Proceedings on Privacy Enhancing Technologies 2022

Internet blackouts are challenging environments for anonymity and censorship resistance. Existing popular networks (e.g., Freenet, I2P, Tor) rely on connectivity to function, making them impracticable during such blackouts. In a setting, mobile ad-hoc can provide connectivity, but prior communication protocols not designed attack resilience. We address this need by designing, implementing, eval...

Journal: :Psychology of addictive behaviors : journal of the Society of Psychologists in Addictive Behaviors 2014
Julia A Martinez Kenneth J Sher Phillip K Wood

There is some evidence that college student drinkers may continue drinking in the face of adverse consequences. We examined 2 hypotheses: (a) that this seemingly pathological behavior is a phenomenon of university life, occurring with consistency throughout the entirety of college, and (b) that individuals accumulate these consequences over multiple semesters in college. A sample of 3,720 stude...

Journal: :مهندسی برق و الکترونیک ایران 0
reza gholizadeh roshanagh sajad najafi ravadanegh

the ultimate goal of power system operation and planning is to increase power system reliability which enforces interconnected operation of power system. as a result of power system interconnection, the inter-area oscillation under different disturbances may cause power system partial or total blackout. dc-segmentation of interconnected power systems is a solution in which the topology of the n...

1992
Ian Dobson Liming Lu

Abstruct-When a generator of a heavily loaded electric power system reaches a reactive power limit, the system can become immediately unstable and a dynamic voltage collapse leading to blackout may follow. We study the statics and dynamics of this mechanism for voltage collapse by example and by the generic theory of saddle node and transcritical bifurcations. Load power margin calculations can...

2005
Ian Dobson Benjamin A. Carreras

We analyze a 15-year time series of North American electric power transmission system blackouts for evidence of self-organized criticality. The probability distribution functions of various measures of blackout size have a power tail and R/S analysis of the time series shows moderate long time correlations. Moreover, the same analysis applied to a time series from a sandpile model known to be s...

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