Thapar University

About: Thapar University is a education organization based out in Patiāla, Punjab, India. It is known for research contribution in the topics: Computer science & Cloud computing. The organization has 2944 authors who have published 8558 publications receiving 130392 citations.

IoT Based Agriculture as a Cloud and Big Data Service: The Beginning of Digital India

Abstract: Cloud computing has transpired as a new model for managing and delivering applications as services efficiently. Convergence of cloud computing with technologies such as wireless sensor networking, Internet of Things (IoT) and Big Data analytics offers new applications' of cloud services. This paper proposes a cloud-based autonomic information system for delivering Agriculture-as-a-Service (AaaS) through the use of cloud and big data technologies. The proposed system gathers information from various users through preconfigured devices and IoT sensors and processes it in cloud using big data analytics and provides the required information to users automatically. The performance of the proposed system has been evaluated in Cloud environment and experimental results show that the proposed system offers better service and the Quality of Service (QoS) is also better in terms of QoS parameters.

UAVs Assisted Delay Optimization in Heterogeneous Wireless Networks

Abstract: In this letter, an optimal placement and distribution of cooperative unmanned aerial vehicles (UAVs) in the next generation heterogeneous networks is presented in order to optimize the overall network delays. The positioning issue is formulated as a minimax facility problem, which is then resolved using the entropy nets by formation of an optimal placement algorithm. The effectiveness of the proposed approach is demonstrated in terms of significant gains including increased UAV positioning accuracy and reduced delays in UAV allocation.

Green synthesis of silver nanoparticles using sun dried tulsi leaves and its catalytic application for 4-Nitrophenol reduction

Abstract: The green synthesis of metallic nanoparticles is a highlight of nanotechnology and has gained increased attention due to growing need to develop non-toxic, fast, facile and environmentally friendly synthetic technique. Current work reports a clean and sustainable approach for the synthesis of biogenic silver nanoparticles (AgNPs) from tulsi leaf extract. The uniqueness of this study lies in the utilization of solar radiations at mild temperature condition for AgNPs formation. Spectroscopic and electron microscopic characterization studies revealed, the formation of stable and monodisperse AgNPs with a sharp absorption band at 430 nm and average diameter of 5–10 nm. Catalytic potential of the AgNPs was studied for the reduction of 4-nitrophenol to 4-aminophenol (100% conversion) in alkaline medium. The catalytic conversion was studied by UV–vis spectroscopy with high reduction rate (k = 2.048 min−1). Moreover, the reusability of the catalyst exhibited a better reduction of the 4-nitrophenol to 4-aminophenol even after 5 consecutive cycles. So we conclude that green synthesis of AgNPs by tulsi extract is a positive step toward the development of novel catalysts.