Rajasthan Technical University

About: Rajasthan Technical University is a education organization based out in Kota, Rajasthan, India. It is known for research contribution in the topics: Photovoltaic system & PID controller. The organization has 716 authors who have published 1084 publications receiving 4530 citations. The organization is also known as: RTU.

Achieving MC/DC using UML Communication Diagram

Abstract: Today, in order to reduce the burdensome task of software testing, test case generation has been elongated and can be generated not only from the coding documents but also from Software Requirement Specification (SRS) and Object-Oriented design models (e.g. UML model). A Unified Modeling Language (UML) contains different diagrams for visual modeling of the Object-Oriented software. To describe individual perspectives of a software system different types of UML diagrams are used. In this study, we have used UML Communication Diagram and generated test cases by considering Modified Condition/Decision Coverage (MC/DC) as a precedent. A UML Communication diagram is used to describe a set of objects collaborating to implement a specific task and illustrate the relationship between them through a complex operation. We propose an automated model-based technique for MC/DC test case generation from the UML Communication Diagram and for that, we have proposed a framework named MC/DC Estimator for UML Communication Diagram (MEUCD) which is a combination of different tools like Modelio, JiBX, jCUTE, and COPECA. We first design a UML Communication Diagram in Modelio UML Modeler and then, by using the classes and instances of the communication diagram, we design the XML Schema Design (XSD) model in Modelio XSD Designer. Then, the XSD is given as input to a Java XML Binding tool JiBX to generate the Java Code. Next, we convert this Java code to a jCUTE executable form and supply it to jCUTE for generating test cases. Finally, MC/DC coverage is measured by using the acceptable Java code and the generated test cases of jCUTE.

Accelerative gravitational search algorithm

Abstract: Gravitational search algorithm (GSA) is a meta-heuristic search algorithm based on the Newton's gravity law. In this article, a new variant of GSA is introduced, namely Accelerative Gravitational Search Algorithm (AGSA). In the proposed AGSA, an acceleration coefficient is introduced in the velocity update equation to control the acceleration of the individual. In the proposed position update process individuals are allowed to explore the search space in early iterations while exploitation in later iterations. The reliability, robustness and accuracy of the proposed algorithm is measured through various statistical analyses over 12 complex test problems. To show the competitiveness of the proposed strategy, the reported results are compared with the results of GSA, Biogeography Based Optimization (BBO), and Differential Evaluation (DE) algorithms.

Effective competency based differential evolution algorithm

Abstract: The DE algorithm is considered as an efficient algorithm in the field of evolutionary algorithms. In case of DE the solution search process is a combination of evolutionary (evolution of po...

Load Frequency Control for Multi-Area Power System using Fuzzy Logic Controller

Abstract: In the contemporary power system, the load frequency control (LFC) of two area thermal power plant has broadly expended in frequency control suitable to having the quick replies. The fuzzy logic controller is considered for two area power plant. The pattern of system with fuzzy controller is imitation in MATLAB/SIMULINK. The dynamic replies of LFC with fuzzy and it equated through PID of frequency control for system. The success of the proposed fuzzy is better-quality the outcomes of power system in provisions of settling time and peak undershoot time

Performance Analysis of Vapour Compression and Vapour Absorption Refrigeration Units Working on Photovoltaic Power Supply

Abstract: This study involves a performance analysis between solar photovoltaic (SPV) operated vapour compression and vapour absorption refrigeration systems. For the purpose of comparison, two refrigerators working on different refrigeration cycles (compression and absorption) have been selected. The temperature and energy consumption of both units were recorded by using various parameters. The results show that though the vapour absorption refrigerator takes more time to decrease the temperature of the cabinet in comparison to the vapour compression refrigerator yet it consumes less power. The vapour absorption system is especially useful in rural areas having no or less frequent power supply where we want to preserve drugs and food items because it can maintain a constant low temperature between 6-10°C if delivered on the same temperature . The initial capital cost of the absorption refrigeration system is also less than compression system.