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Estimation of Electro-Mechanical Mode Parameters using Frequency Measurements

Oscillation frequency and damping of electro-mechanical modes in a power system have traditionally been determined from events caused by large disturbances such as line switchings or generator tripping. Recent papers have shown the possibility to extract this information during normal operation from measurements of power through, or angle difference across, a transmission line. In this paper these

THE COMMUNICATION HAVE-NOTS—Understanding communication control and “counter-publics” in contemporary China

This paper takes a new perspective on power and dominance in contemporary China by focusing on the Party-state’s control over communication. By looking at “counter-publics,” the voiceless in the Chinese public sphere, this paper investigates how the Party-state strengthens its controls over freedom of expression; deprives people of means of expression, interaction, and communication; and excludes

Probing Proton Translocation in Influenza A/M2 Proteoliposomes - A systematic Approach to Membrane-Protein Reconstitutions

Popular Abstract in Swedish Allt levande består av celler. Cellen är livets allra minsta byggsten. Cellen har ett hölje som kallas cellmembran. Detta membran skiljer cellens inre som kallas cytosol från omvärlden. I detta cellmembran sitter olika protein inbäddade. Genom dessa protein kommunicerar och utbyter cellen ämnen med sin omgivning. Många av dessa protein är mål för läkemedel och är därförAn improved method for reconstituting membrane proteins into artificial liposomes for quantitative functional analysis is presented. A number of key parameters for reconstitution by detergent removal are assessed in this thesis: The lipid-to-protein ratio, the detergent-to-lipid ratio and the lipid and cholesterol composition. New porphyrin-based pH-probes are evaluated. Based on this systematic,

From data to decision - learning by probabilistic risk analysis of biological invasions

Predicting an uncertain future with uncertain knowledge is a challenge. The success of efforts to preserve biodiversity, to maintain biosecurity and to reduce a negative impact from climate change, depend on scientifically based predictions of future events. The ongoing introduction of non-indigenous species threatens ecological systems for which empirical data is sparse and scientific knowledge i

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Artikeln rör historiebruk i det moderna Europa.

Interference cancellation detectors in a hardware implementation perspective

To combat interference between users in a DS/CDMA system, several multiuser detection schemes have been proposed. This paper presents a prestudy for a custom DSP implementation of a multi-user detector scheme based on non-decision directed interference cancellation. Two architectural implementation methods for asynchronous detection are suggested and mutually compared. Each of the architectures is