In the study of distributed systems, it is of fundamental interest to understand how specifications on local components and interconnections influence global properties of the system. In this paper, we consider linear continuous time systems described by sparse matrices. Properties of interest are stability and quadratic performance specifications such as passivity and input-output gain. In partic

En utveckling av den s. k. väte-ekonomin, där vätgas (H2) används som energibärare, skulle – rent teoretiskt – kunna lösa människans energiproblem då vatten skulle kunna användas som bränsle. För att nå detta mål krävs dock väsentlig teknologisk och vetenskaplig utveckling. Ur ett rent vetenskapligt perspektiv, måste bl a (energisnåla) kemiska metoder att skapa stora mängder vätgas utvecklas. MångAbstract – The mixed-valence triiron complexes [Fe3(CO)7-x(PPh3)x(µ-edt)2] (x = 0, 1, 2; edt = SCH2CH2S) and [Fe3(CO)5(κ2-diphosphine)(µ-edt)2] (diphosphine = dppv, dppe, dppb, dppn) have been prepared and structurally characterized. In comparison to the diiron complex [Fe2(CO)6(µ-edt)], [Fe3(CO)7(µ-edt)2] catalyzes proton reduction at 0.36 V less negative potentials, which is a significant energe

We investigate the network stability problem when two users are scheduled simultaneously. The key idea is to simultaneously transmit to more than one users experiencing different channel conditions by employing hierarchical modulation. For two-user scheduling problem, we develop a throughput-optimal algorithm which can stabilize the network whenever traffic load is stabilizable (i.e., it is within

Sport diplomacy provides a challenging example of how diplomaticpractice is changing in light of a proliferation of actors,agendas, and modes of communication. This context hasinspired greater interest in techniques for managing the participationof others in the pursuit of desired outcomes, such asdebates surrounding multi-stakeholder diplomacy, publicdiplomacy, and soft power. However, these deba

Abstract submitted to ISEE 2012 Theme: The Political Economy of Green Development By Rikard Warlenius PhD Candidate Human Ecology Division Lund University, Sweden 2011.11.24 Calculating Climate Debt. A Comparison and a Proposal The notion of climate debt has invoked widespread interest in the last few years. First conceptualized in 1999 within the Millennium movement for (financial) debt cancella

This article analyses some young men’s specific ways of retelling victims’ experience when the perpetrators have an immigrant background. In qualitative interviews with twenty young men, fear of being seen as intolerant was distinguished by their expressive caution. This involved using various aligning actions: presenting disclaimers and accounts, but also in terms of hesitant speak, re-takes and This article analyses some young men’s specific ways of retelling victims’ experience when the perpetrators have an immigrant background. In qualitative interviews with twenty young men, fear of being seen as intolerant was distinguished by their expressive caution. This involved using various aligning actions: presenting disclaimers and accounts, but also in terms of hesitant speak, re-takes and