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Abstrakt

The present paper analyses metaphor and metonymy describing God in The Old Testament. Instances of these phenomena are approached from the cognitive perspective, suggested by Lakoff and Johnson (2003). The aim of this article is to show that the metaphorical and metonymical references to God in The Old Testament do not function as merely rhetorical devices, but are conceptualizations of God, grounded in people's everyday experiences. This fact plays an important role in the process of understanding the notion of God. The discussed metaphors and metonymies are classified into personifications as instances of ontological metaphor, structural metaphors, orientational metaphors and metonymies.
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Autorzy i Afiliacje

Marcin Kuczok

Abstrakt

This paper presents an analytical approach for solving the weighting matrices selection problem of a linear quadratic regulator (LQR) for the trajectory tracking application of a magnetic levitation system. One of the challenging problems in the design of LQR for tracking applications is the choice of Q and R matrices. Conventionally, the weights of a LQR controller are chosen based on a trial and error approach to determine the optimum state feedback controller gains. However, it is often time consuming and tedious to tune the controller gains via a trial and error method. To address this problem, by utilizing the relation between the algebraic Riccati equation (ARE) and the Lagrangian optimization principle, an analytical methodology for selecting the elements of Q and R matrices has been formulated. The novelty of the methodology is the emphasis on the synthesis of time domain design specifications for the formulation of the cost function of LQR, which directly translates the system requirement into a cost function so that the optimal performance can be obtained via a systematic approach. The efficacy of the proposed methodology is tested on the benchmark Quanser magnetic levitation system and a detailed simulation and experimental results are presented. Experimental results prove that the proposed methodology not only provides a systematic way of selecting the weighting matrices but also significantly improves the tracking performance of the system.
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Autorzy i Afiliacje

Kumar E. Vinodh
Jovitha Jerome

Abstrakt

This paper describes in detail the phe notypic traits of the newly discovered Leptolyngbya sieminskae sp. n. (Cyanobacteria). The species was found at two islands of the Svalbard archipelago (Spitsbergen and Nordaustlandet) in habitats which differed in humidity, water sources and altitude. The research was conducted at two fjords: on the southern side of Spitsbergen – Hornsund (77 ° N, 015 ° E) and the north−west side of Nordaustlandet – Murchisonfjord (80 ° N, 018 ° E). Although Leptolyngbya sieminskae was found in different latitudes no significant morphological differences were found between the specimens from both sites. The only visible difference is in the thickness of filaments and sheaths.
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Autorzy i Afiliacje

Dorota Richter
Jan Matuła

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