Prediction of Power Grid Emergency Material Resources under Meteorological Disasters

Author(s):  
Liangping Hu ◽  
Wei Cong ◽  
Ming Chen ◽  
Jifu Qiu ◽  
Tianyou Yang ◽  
...  
2018 ◽  
Vol 64 ◽  
pp. 04002
Author(s):  
Wu Yuekang ◽  
Chen Shuheng ◽  
Jing Shi ◽  
Shi Xueting

Substation as an important component of the power grid, its safe and steady operation is crucial to the power grid. After building new substation or renovating the old ones, they needs to be tested to ensure its safe operation. The method, using relay protection tester to test the substation equipment nowadays, is not available to the whole cascade related connecting equipment, and the test work need a lot of manpower and material resources. To make up for all kinds of shortcomings when testing, this paper proposes a digital substation-oriented testing method for whole station concatenation, and established a testing software to test the whole cascaded substation, especially the method can realize closed-loop simulation test for whole station. In this method, the potential faults of digital substations can be predicted by using electromagnetic transient simulation to simulate various faults of substations, and the state of primary equipment can also be tested. The testing time can be shorten and the accuracy of testing can be improved, as well as, the safe and steady operation of substation equipment can be ensured by using the method proposed in this paper.


2009 ◽  
Author(s):  
David Close ◽  
Kari Babski-Reeves ◽  
Nick Younan ◽  
Noel Schulz

Author(s):  
Kriti Jain ◽  
Chirag Shah

The increasing volume and complexity of waste associated with the modern economy as due to the ranging population, is posing a serious risk to ecosystems and human health. Every year, an estimated 11.2 billion tonnes of solid waste is collected worldwide and decay of the organic proportion of solid waste is contributing about 5 per cent of global greenhouse gas emissions (UNEP). Poor waste management - ranging from non-existing collection systems to ineffective disposal causes air pollution, water and soil contamination. Open and unsanitary landfills contribute to contamination of drinking water and can cause infection and transmit diseases. The dispersal of debris pollutes ecosystems and dangerous substances from waste or garbage puts a strain on the health of urban dwellers and the environment. India, being second most populated country of the world that too with the lesser land area comparatively, faces major environmental challenges associated with waste generation and inadequate waste collection, transport, treatment and disposal. Population explosion, coupled with improved life style of people, results in increased generation of solid wastes in urban as well as rural areas of the country. The challenges and barriers are significant, but so are the opportunities. A priority is to move from reliance on waste dumps that offer no environmental protection, to waste management systems that retain useful resources within the economy [2]. Waste segregation at source and use of specialized waste processing facilities to separate recyclable materials has a key role. Disposal of residual waste after extraction of material resources needs engineered landfill sites and/or investment in waste-to-energy facilities. This study focusses on the minimization of the waste and gives the brief about the various initiations for proper waste management system. Hence moving towards the alternatives is the way to deal with these basic problems. This paper outlines various advances in the area of waste management. It focuses on current practices related to waste management initiatives taken by India. The purpose of this article put a light on various initiatives in the country and locates the scope for improvement in the management of waste which will also clean up the unemployment.


2019 ◽  
Vol 28 (1) ◽  
pp. 52-66
Author(s):  
Julie Bates

Happy Days is contemporaneous with a number of seminal contributions to the concept of the everyday in postwar France. This essay suggests that the increasingly constrained verbal and physical routines performed by its protagonist Winnie constitute a portrait of the everyday, and goes on to trace the affinities between Beckett's portrait and several formulations of the concept, with particular emphasis on the pronounced gendering of the everyday in many of these theories. The essay suggests the aerial bombings of the Second World War and methods of torture during the Algerian War as potential influences for Beckett's play, and draws a comparison with Marlen Haushofer's 1963 novel The Wall, which reimagines the Romantic myth of The Last Man as The Last Woman. It is significant, however, that the cataclysmic event that precedes the events of Happy Days remains unnamed. This lack of specificity, I suggest, is constitutive of the menace of the play, and has ensured that the political as well as aesthetic power of Happy Days has not dated. Indeed, the everyday of its sentinel figure posted in a blighted landscape continues to articulate the fears of audiences, for whom the play may resonate today as a staging of twenty-first century anxiety about environmental crisis. The essay concludes that in Happy Days we encounter an isolated female protagonist who contrives from scant material resources and habitual bodily rhythms a shelter within a hostile environment, who generates, in other words, an everyday despite the shattering of the social and temporal framework that conventionally underpin its formation. Beckett's play in this way demonstrates the political as well as aesthetic power of the everyday in a time of crisis.


Author(s):  
Chrysanthi S. Leon ◽  
Corey S. Shdaimah

Expertise in multi-door criminal justice enables new forms of intervention within existing criminal justice systems. Expertise provides criminal justice personnel with the rationale and means to use their authority in order to carry out their existing roles for the purpose of doing (what they see as) good. In the first section, we outline theoretical frameworks derived from Gil Eyal’s sociology of expertise and Thomas Haskell’s evolution of moral sensibility. We use professional stakeholder interview data (N = 45) from our studies of three emerging and existing prostitution diversion programs as a case study to illustrate how criminal justice actors use what we define as primary, secondary, and tertiary expertise in multi-agency working groups. Actors make use of the tools at their disposal—in this case, the concept of trauma—to further personal and professional goals. As our case study demonstrates, professionals in specialized diversion programs recognize the inadequacy of criminal justice systems and believe that women who sell sex do so as a response to past harms and a lack of social, emotional, and material resources to cope with their trauma. Trauma shapes the kinds of interventions and expertise that are marshalled in response. Specialized programs create seepage that may reduce solely punitive responses and pave the way for better services. However empathetic, they do nothing to address the societal forces that are the root causes of harm and resultant trauma. This may have more to do with imagined capacities than with the objectively best approaches.


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