Vignan University

About: Vignan University is a education organization based out in Guntur, Andhra Pradesh, India. It is known for research contribution in the topics: Computer science & Control theory. The organization has 1138 authors who have published 1381 publications receiving 7798 citations.

Heuristic Scale to Estimate Premature Malaria Parasites: Scope in Microscopic Blood Smear Images

Abstract: Objective: Malaria is one of the epidemic diseases and early detection of malaria symptoms in the patients using the current manual procedures are skeptical, as the diagnosis patterns depends more on the experience of professionals. To overcome the challenges, in this paper we are proposing computer aided model to support in malaria detection at early stages using Microscopic Blood Smear Images analysis using machine learning. Methods/Statistical Analysis: There are many computer aided models that were proposed and adapted in the process of addressing the diagnosis models. Some models like machine learning, image processing, neural network based solutions etc are adapted, which reflects more insights into the process. However, the issue of gaps in accuracy still persists, and the proposed model of Heuristic Scale to Estimate Premature Malaria Parasites Scope (SEMPS) with multi stage processing of the microscopic images of blood smear is processed. Findings: The proposed model is compared with the benchmark models like SVM and Bayesian, the outcome in terms of efficiency of the model is imperative from the results. The proposed model has resulted in more effective and accurate detection of malaria symptoms in the test cases, and the result accuracy is higher than the other two benchmarking models of SVM and Bayesian techniques chosen for comparative analysis. Improvements: The computational complexity of the SEMPS is evinced as linear, where the majority of benchmarking models are found to be up-hard.

Thermal performance of a central annular cavity vessel with fins of a box-type solar cooker

Abstract: Solar cooker is an alternate device used for reducing the problems of energy supply for cooking needs, especially in rural households. Though solar cookers have been commercialised in rural and other domestic areas, further research is still required to enhance the efficiency of the solar cooker. Previous studies have helped to ascertain that the central annular cylindrical hole in the cooking vessel reduces the length of the heat-transfer path and provides higher heat-transfer rate to the water kept in the vessel. Convective heat transfer can be further increased by providing additional surface area in the cylindrical hole. This study proposes a new cooking vessel with central annular cavity and fins attachment that will help in increasing the heat-transfer rate to the cooking vessel. Experiments are conducted with three types of vessels, i.e. conventional cooking vessel, cooking vessel with central annular cavity and cooking vessel with rectangular fins in the central annular cavity. For the annular cav...

Isolated Bi-directional DC-DC converter's performance and analysis with Z-source by using PWM control strategy

Abstract: In This paper we are presenting a bidirectional DC-DC converter is also known as dual active bridge (DAB) dc-dc converter. We presented a Z-source with bidirectional dc-dc converter by reducing the switching count by adding the passive elements we are improving the output voltage level, Comparing with the traditional bidirectional dc-dc converter, the proposed converter has an wider regulation range of voltage. The fully bridge symmetrical circuit configuration, is neither a highvoltage side nor a low-voltage side in the circuit structure, and the sources connected to the dc side of each H-bridge circuit with voltage sources and current sources. This method can reduce current stress and improves the system efficiency. Both simulation results shown by using an MATLAB software.