Contingency ranking in power system transient stability is a complicated and time consuming task. To prevail over this difficulty, various indices are used. These indices are based on the concept of coherency and three dot products of the system variables. It is well known that some indices work better than others for a particular power system. This paper introduces an innovative composite seve...

One of the challenges in process control is prov id ing reliable control of poor ly understood systems. Before such a system can be cont ro l led we must f i rst be able to predict its future behavior-so that we know what control action is necessary. Th is paper presents two approaches to this predict ion task, both using qual i tat ive models augmented by records of histor ical system behavior...

Many programs designed to compute the readability of texts are narrowly based on surface-level linguistic features and take too little account of the processes which a reader brings to the text. This study is an exploratory examination of the use of Coh-Metrix, a computational tool that measures cohesion and text difficulty at various levels of language, discourse, and conceptual analysis. It i...

MOTIVATION The efficiency indices (EI's) have been derived from the experimental binding affinities of drug candidates to macromolecules. These 'two-in-one' measures include information on both pharmacodynamics and pharmacokinetics of the candidate molecules. The time-consuming experimental measurement of binding affinities of extensive molecule libraries may become a bottle-neck of large scale...

Background The principal determinants of chronic left ventricular (LV) dysfunction are reduced myocardial contractility and afterload excess due to adverse LV remodeling. To determine the relative contribution of each to a given instance of LV dysfunction, reliable quantitative indices of both myocardial contractility and afterload are needed. At the LV chamber level, ventricular volume and LV ...

Researchers have created a number of meeting capture applications in the past decade, yet relatively little research has focused on the review and use of captured meeting information. In this paper, we describe a controlled study of a mature meeting capture and access application, in which we observed subjects finding information within their own group meetings. The results demonstrate the impo...

In this paper, we address the problem of quantifying the overall extent to which a testtaker’s essay deals with the topic it is assigned (prompt). We experiment with a number of models for word topicality, and a number of approaches for aggregating word-level indices into text-level ones. All models are evaluated for their ability to predict the holistic quality of essays. We show that the best...

Let G be a graph and let mij(G), i, j ≥ 1, be the number of edges uv of G such that {dv(G), du(G)} = {i, j}. TheM -polynomial ofG is introduced withM(G;x, y) = ∑ i≤j mij(G)x y . It is shown that degree-based topological indices can be routinely computed from the polynomial, thus reducing the problem of their determination in each particular case to the single problem of determining the M -polyn...

For an assessment of the power quality in power distribution systems, classical Fourier series-based power quality indices are normally employed. The classical Fourier series-based power quality indices assume the periodicity of the disturbance so that the applications are limited to the harmonics. Hence, it is necessary for us to redefine power quality indices for the “transient” disturbances....