Constructing ECA Rule for IoT Application through a Novel S2RG Process: The Exemplary ECA Rules for Smarter Energy Applications

SUPPORTING DISTRIBUTED EVENT-CONDITION-ACTION RULES IN A MULTIDATABASE ENVIRONMENT

International Journal of Cooperative Information Systems ◽

10.1142/s0218843007001676 ◽

2007 ◽

Vol 16 (03n04) ◽

pp. 467-506 ◽

Cited By ~ 2

Author(s):

VERENA KANTERE ◽

ILUJU KIRINGA ◽

JOHN MYLOPOULOS

Keyword(s):

Boolean Algebra ◽

Experimental Evaluation ◽

Formal Semantics ◽

Execution Engine ◽

Eca Rules ◽

Action Language ◽

Execution Model ◽

Composite Events ◽

Data Coordination ◽

Eca Rule

We describe a mechanism based on distributed Event-Condition-Action (ECA) rules that supports data coordination in a multidatabase setting. The proposed mechanism includes an ECA rule language and a rule execution engine that transforms rules when they are first posted, and then coordinates their execution. Like traditional ECA rules, our ECA rule language has three parts: an event language, a condition language, and an action language. The event language provides a set of operators with a formal semantics for a multidatabase environment, and which allows a wide variety of composite events. The condition language provides Boolean algebra operators that take as operands either composite or simple conditions. The action language provides a conjunction of simple or composite actions. The execution model partitions rules to more easily manageable forms, distributes them to relevant databases, monitors their execution and composes their evaluations. The mechanism has been designed in a manner that minimizes the number of messages that need to be exchanged over the network. We have also conducted an experimental evaluation to compare the implementation with a naïve centralized execution model. The paper also presents a prototype implementation as well as experimental results on its performance. This work is part of an on-going project intended to develop data coordination techniques for data sharing settings.

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Cost Effective Synthesis and Fabrication of Phase-Pure Kesterite Cu2-xZn1.3SnS4 P-type Absorber Layer Thin Films by Solvent Based Process Technique for Photovoltaic Solar Energy Applications

International Journal of Emerging Research in Management and Technology ◽

10.23956/ijermt.v7i4.5 ◽

2018 ◽

Vol 7 (4) ◽

pp. 36

Author(s):

B. Khadambari ◽

S. S. Bhattacharya

Keyword(s):

Solar Energy ◽

Renewable Energy Sources ◽

Cost Effective ◽

Absorber Layer ◽

Window Layer ◽

Energy Applications ◽

Process Technique ◽

Absorber Material ◽

Effective Synthesis ◽

P Type

Solar has become one of the fastest growing renewable energy sources. With the push towards sustainability it is an excellent solution to resolve the issue of our diminishing finite resources. Alternative photovoltaic systems are of much importance to utilize solar energy efficiently. The Cu-chalcopyrite compounds CuInS2 and CuInSe2 and their alloys provide absorber material of high absorption coefficients of the order of 105 cm-1. Cu2ZnSnS4 (CZTS) is more promising material for photovoltaic applications as Zn and Sn are abundant materials of earth’s crust. Further, the preparation of CZTS-ink facilitates the production of flexible solar cells. The device can be designed with Al doped ZnO as the front contact, n-type window layer (e.g. intrinsic ZnO); an n-type thin film buffer layer (e.g. CdS) and a p-type CZTS absorber layer with Molybdenum (Mo) substrate as back contact. In this study, CZTS films were synthesized by a non-vaccum solvent based process technique from a molecular-ink using a non toxic eco-friendly solvent dimethyl sulfoxide (DMSO). The deposited CZTS films were optimized and characterized by XRD, UV-visible spectroscopy and SEM.

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Lossless Dynamic Models of the Quasi-Z-Source Converter Family

Scientific Journal of Riga Technical University Power and Electrical Engineering ◽

10.2478/v10144-011-0013-y ◽

2011 ◽

Vol 29 (1) ◽

pp. 73-78 ◽

Cited By ~ 1

Author(s):

Dmitri Vinnikov ◽

Oleksandr Husev ◽

Indrek Roasto

Keyword(s):

Renewable Energy ◽

Dynamic Models ◽

Energy Applications

Lossless Dynamic Models of the Quasi-Z-Source Converter FamilyThis paper is devoted to the quasi-Z-source (qZS) converter family. Recently, the qZS-converters have attracted attention because of their specific properties of voltage boost and buck functions with a single switching stage, which could be especially beneficial in renewable energy applications. As main representatives of the qZS-converter family, the traditional quasi-Z-source inverter as well as two novel extended boost quasi-Z-source inverters are discussed. Lossless dynamic models of these topologies are presented and analyzed.

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