The Experts below are selected from a list of 189 Experts worldwide ranked by ideXlab platform
Nalin Kant Mohanty - One of the best experts on this subject based on the ideXlab platform.
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Fundamental Sequence Component Based Hysteresis Current Controlled MSALC
Energy Procedia, 2017Co-Authors: G. Muralikrishnan, Nalin Kant MohantyAbstract:Abstract Harmonic and power factor reduction is caused by non-linear component and current unbalance in the system. It is very often identified power quality issue. Fundamental negative Sequence current tends to rise the temperature of electrical rotating machine, static electrical devices and unnecessary open circuit of electrical protection devices. Harmonic current causes rise in line losses and skin effect. In this paper, stationary reference frame control is proposed and executed based on Fundamental positive and negative Sequence Component Evaluation. Fundamental positive Sequence current is accounted as instruction parameter for Electric Potential Source Inverter. Modified Shunt Active Line Conditioner is employed as current conditioner. MSALC is modeled to eliminate Fundamental negative Sequence current component thereby balancing currents. Ultimately low Total Harmonic Distortion and low Harmonic Current Ratio Factor and fall in lines losses and enhancement of power factor are analyzed in the power distribution system.
Gevorg Grigoryan - One of the best experts on this subject based on the ideXlab platform.
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tertiary structural propensities reveal Fundamental Sequence structure relationships
Structure, 2015Co-Authors: Fan Zheng, Jian Zhang, Gevorg GrigoryanAbstract:Summary Extracting useful generalizations from the continually growing Protein Data Bank (PDB) is of central importance. We hypothesize that the PDB contains valuable quantitative information on the level of local tertiary structural motifs (TERMs). We show that by breaking a protein structure into its constituent TERMs, and querying the PDB to characterize the natural ensemble matching each, we can estimate the compatibility of the structure with a given amino acid Sequence through a metric we term "structure score." Considering submissions from recent Critical Assessment of Structure Prediction (CASP) experiments, we found a strong correlation (R = 0.69) between structure score and model accuracy, with poorly predicted regions readily identifiable. This performance exceeds that of leading atomistic statistical energy functions. Furthermore, TERM-based analysis of two prototypical multi-state proteins rapidly produced structural insights fully consistent with prior extensive experimental studies. We thus find that TERM-based analysis should have considerable utility for protein structural biology.
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Tertiary Structural Propensities Reveal Fundamental Sequence/Structure Relationships
Structure (London England : 1993), 2015Co-Authors: Fan Zheng, Jian Zhang, Gevorg GrigoryanAbstract:Summary Extracting useful generalizations from the continually growing Protein Data Bank (PDB) is of central importance. We hypothesize that the PDB contains valuable quantitative information on the level of local tertiary structural motifs (TERMs). We show that by breaking a protein structure into its constituent TERMs, and querying the PDB to characterize the natural ensemble matching each, we can estimate the compatibility of the structure with a given amino acid Sequence through a metric we term "structure score." Considering submissions from recent Critical Assessment of Structure Prediction (CASP) experiments, we found a strong correlation (R = 0.69) between structure score and model accuracy, with poorly predicted regions readily identifiable. This performance exceeds that of leading atomistic statistical energy functions. Furthermore, TERM-based analysis of two prototypical multi-state proteins rapidly produced structural insights fully consistent with prior extensive experimental studies. We thus find that TERM-based analysis should have considerable utility for protein structural biology.
G. Muralikrishnan - One of the best experts on this subject based on the ideXlab platform.
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Fundamental Sequence Component Based Hysteresis Current Controlled MSALC
Energy Procedia, 2017Co-Authors: G. Muralikrishnan, Nalin Kant MohantyAbstract:Abstract Harmonic and power factor reduction is caused by non-linear component and current unbalance in the system. It is very often identified power quality issue. Fundamental negative Sequence current tends to rise the temperature of electrical rotating machine, static electrical devices and unnecessary open circuit of electrical protection devices. Harmonic current causes rise in line losses and skin effect. In this paper, stationary reference frame control is proposed and executed based on Fundamental positive and negative Sequence Component Evaluation. Fundamental positive Sequence current is accounted as instruction parameter for Electric Potential Source Inverter. Modified Shunt Active Line Conditioner is employed as current conditioner. MSALC is modeled to eliminate Fundamental negative Sequence current component thereby balancing currents. Ultimately low Total Harmonic Distortion and low Harmonic Current Ratio Factor and fall in lines losses and enhancement of power factor are analyzed in the power distribution system.
Boris G. Averbukh - One of the best experts on this subject based on the ideXlab platform.
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On unitary extensions and unitary completions of topological monoids
Topological Algebra and its Applications, 2016Co-Authors: Boris G. AverbukhAbstract:AbstractThe concept of a unitary Cauchy net in an arbitrary Hausdorff topological monoid generalizes the concept of a Fundamental Sequence of reals. We construct extensions of this monoid where all its unitary Cauchy nets converge.
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On unitary Cauchy filters on topological monoids
Topological Algebra and its Applications, 2013Co-Authors: Boris G. AverbukhAbstract:AbstractFor Hausdorff topological monoids, the concept of a unitary Cauchy net is a generalization of the concept of a Fundamental Sequence of reals. We consider properties and applications of such nets and of corresponding filters and prove, in particular, that the underlying set of a given monoid, endowed with the family of such filters, forms a Cauchy space whose convergence structure defines a uniform topology. A commutative monoid endowed with the corresponding uniformity is uniform. A distant purpose of the paper is to transfer the classical concepts of a completeness and of a completion into the theory of topological monoids.
Mariano Marzo - One of the best experts on this subject based on the ideXlab platform.
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Anatomy of regressive tracts in a regressive Sequence set: Vilomara unit, Sant Llorenç del Munt, Ebro Basin, NE Spain
Sedimentary Geology, 2000Co-Authors: M. López-blanco, J. Pina, Mariano MarzoAbstract:Abstract The Sant Llorenc del Munt fan-delta succession forms a clastic wedge (ca. 3 My duration) that built out into the NE Ebro Basin in response to transpression and uplift along the Paleogene Catalan Coastal Range. This fan-delta succession is arranged in a series of transgressive–regressive Sequences of different scales. A large-scale composite megaSequence (the Milany megaSequence) includes the whole fan-delta succession. This megaSequence is subdivided in seven composite Sequences that, in turn, can be subdivided into Fundamental Sequences. The Vilomara composite Sequence (the Vilomara Unit) is located in the regressive part of the Milany megaSequence. The regressive part of the Vilomara composite Sequence, consisting of a seaward-stepping set of Fundamental Sequences (the Vilomara unit), has been studied to understand the facies relations, geometries, and the characteristics of key surfaces in progradational settings. The Vilomara regressive Sequence set is formed by stacked alluvial fan, fan-delta plain, proximal and distal fan-delta front, fan-delta slope (within the regressive part of Fundamental Sequences) and carbonate platform (usually within the transgressive part of Fundamental Sequences) deposits. The Vilomara regressive unit shows a sigmoidal geometry in contrast to the underlying El Marcet transgressive unit, which thickens landwards. This sigmoidal geometry for the regressive unit and landward thickening for the transgressive unit is common for all scales of Sequence (composite megaSequences, composite Sequences and Fundamental Sequences). There are evident facies arrangement differences between transgressive and regressive deposits within a Fundamental Sequence. Key surfaces have been recognised from vertical-trend changes (from transgressive to regressive and vice versa). The facies successions immediately above and below the surfaces bounding Fundamental Sequences may indicate, at different stratigraphic levels, a basinward or a landward shift of facies belts.
