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- Bazilian, M., et al.
(författare)
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Accelerating the global transformation to 21st century power systems
- 2013
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Ingår i: Electricity Journal. - : Elsevier BV. - 1040-6190 .- 1873-6874. ; 26:6, s. 39-51
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Tidskriftsartikel (refereegranskat)abstract
- Nations and regions need to share lessons about the best ways to create enabling policies, regulations, and markets that get the most social benefit out of power systems and incent the necessary investments.
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- Keane, A., et al.
(författare)
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Capacity value of wind power
- 2011
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Ingår i: IEEE Transactions on Power Systems. - 0885-8950 .- 1558-0679. ; 26:2, s. 564-572
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Tidskriftsartikel (refereegranskat)abstract
- Power systems are planned such that they have adequate generation capacity to meet the load, according to a defined reliability target. The increase in the penetration of wind generation in recent years has led to a number of challenges for the planning and operation of power systems. A key metric for generation system adequacy is the capacity value of generation. The capacity value of a generator is the contribution that a given generator makes to generation system adequacy. The variable and stochastic nature of wind sets it apart from conventional energy sources. As a result, the modeling of wind generation in the same manner as conventional generation for capacity value calculations is inappropriate. In this paper a preferred method for calculation of the capacity value of wind is described and a discussion of the pertinent issues surrounding it is given. Approximate methods for the calculation are also described with their limitations highlighted. The outcome of recent wind capacity value analyses in Europe and North America, along with some new analysis, are highlighted with a discussion of relevant issues also given.
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- Milligan, M., et al.
(författare)
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Preface : Wind Power Myths Debunked
- 2012
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Ingår i: Wind Power in Power Systems, Second Edition. - : John Wiley and Sons. ; , s. 7-20
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Bokkapitel (refereegranskat)abstract
- Wind power use has grown significantly in recent years. As power system planners, investors, and other stakeholders evaluate the development of wind power plants, many questions about wind power plant operational characteristics have arisen. These questions range from asking whether wind power plants require storage, to how fast can wind power plants' output fall to zero. Recent experience in operating power systems with increasing levels of wind power, along with a significant body of analysis, has provided answers to many of these questions. In this chapter, we discuss many of these key questions and answers drawing on international experience and analysis of wind power plant operations.
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- O'Malley, Tiernan T., et al.
(författare)
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A beta dimers differ from monomers in structural propensity, aggregation paths and population of synaptotoxic assemblies
- 2014
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Ingår i: Biochemical Journal. - 0264-6021. ; 461, s. 413-426
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Tidskriftsartikel (refereegranskat)abstract
- Dimers of A beta (amyloid beta-protein) are believed to play an important role in Alzheimer's disease. In the absence of sufficient brain-derived dimers, we studied one of the only possible dimers that could be produced in vivo, [A beta](DiY) (dityrosine cross-linked A beta). For comparison, we used the A beta monomer and a design dimer cross-linked by replacement of Ser(26) with cystine [A beta S26C](2). We showed that similar to monomers, unaggregated dimers lack appreciable structure and fail to alter long-term potentiation. Importantly, dimers exhibit subtly different structural propensities from monomers and each other, and can self-associate to form larger assemblies. Although [A beta](DiY) and [A beta S26C](2) have distinct aggregation pathways, they both populate bioactive soluble assemblies for longer durations than A beta monomers. Our results indicate that the link between A beta dimers and Alzheimer's disease results from the ability of dimers to further assemble and form synaptotoxic assemblies that persist for long periods of time.
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