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Abstract

This account examines how episodes are constructed and measured, and how Peirce’s Index informs and even hastens the advancement of this process—from binding spatial features, to the awareness of participant roles and temporal sequencing. It provides semiotic rationale for how episodes develop from static single pictures (dependent on verbatim memory) to events whose frames reflect a deictic and sequential character—superseding the consciousness inherent in autonoesis. Empirical evidence will trace children’s event memory—first iconic and static, and later characteristic of increasingly more complex interpretants which specify directional and logical relations, and memory sources. The signs which promote episodic thought are indexical in nature, given their largely relational character. They incorporate deictic projections of the self in diverse orientations, entering into different participant slots inherent to the event. Notice of the latter entails the influence of index to apprehend the spatial, participatory, and temporal directionality within and across event frames. This progression requires a rudimentary consciousness of aspectual features (telicity, dynamicity), as well as an appreciation for the events’ purposes/goals. Anticipating how, where, and when events conclude is critical to realizing the event’s purpose/goal, since, according to Bauer 2006: 384, it constitutes the basis upon which episodes are constructed.

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Authors and Affiliations

Donna West
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Abstract

The considered shunt active power filter can be controlled not only to compensate non-active current in the supply source, but additionally to optimize energy flow between the source and the load. In such a case the filter shapes the source current to be active and simultaneously regulates its magnitude. The presented filter/buffer can operate properly even when the load contains AC or DC variable energy source of any characteristic. The device can optimize energy flow for a single load, but also for a group of loads as well. The distinctive feature of the employed control method of the filter/buffer is that certain changes of energy stored in the device are utilized as the source of information concerning the active current of the load. This control method is very flexible and can be implemented to nearly all structures of active filters, for DC, single- and multiphase circuits.

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Andrzej Szromba
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Abstract

This study explores the influence of alkali activators on the initiation of polymerization reaction of alumino-silicate minerals present in class-F fly ash material. Different types of fly ash aggregates were produced with silicate rich binders (bentonite and metakaolin) and the effect of alkali activators on the strength gain properties were analyzed. A comprehensive examination on its physical and mechanical properties of the various artificial fly ash aggregates has been carried out systematically. A pelletizer machine was fabricated in this study to produce aggregate pellets from fly ash. The efficiency and strength of pellets was improved by mixing fly ash with different binder materials such as ground granulated blast furnace slag (GGBS), metakaolin and bentonite. Further, the activation of fly ash binders was done using sodium hydroxide for improving its binding properties. Concrete mixes were designed and prepared with the different fly ash based aggregates containing different ingredients. Hardened concrete specimens after sufficient curing was tested for assessing the mechanical properties of different types concrete mixes. Test results indicated that fly ash -GGBS aggregates (30S2‒100) with alkali activator at 10M exhibited highest crushing strength containing of 22.81 MPa. Similarly, the concrete mix with 20% fly ash-GGBS based aggregate reported a highest compressive strength of 31.98 MPa. The fly ash based aggregates containing different binders was found to possess adequate engineering properties which can be suggested for moderate construction works.

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Authors and Affiliations

P. Gomathi
A. Sivakumar

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