International Journal of Innovative Research in Physics (IJIIP)
(ISSN Number(Online) - 2687-7902)
(ISSN Number(Print) - 2689-484X)

Volume3 Issue3:

Development of a Universal Running Time Predictor using Multivariate Regression

Farhan Hai Khan1, Tannistha Pal2* and Rounik Ro3

1Department of Electrical Engineering, Institute of Engineering & Management, Kolkata-700091
2Department of Electronics and Communication Engineering, Institute of Engineering &Management, Kolkata-700091
3Department of Electrical Engineering, Institute of Engineering & Management, Kolkata-700091
Page Number: 1-9

Various types of running times exist for analysis of algorithmic efficiency. This research presents a moreempirical approach to the problem for the practical measurements of the actual running time of algorithmsby considering a plethora of randomized inputs Rn and then fitting a regression curve in n to the algorithmof practical time complexity υ (n). This will also provide us the productivity factor η which will quantifythe universal running time with respect to the asymptotic worst-case complexity and evaluatetheefficiency of the given algorithm with the help of leading coefficients. This research will also helpuscompare similar algorithms in a mathematically modelled manner

Keywords: universal running time; ef iciency of algorithms; practical time complexity; multivariate regression; leading coef icients.


Green Synthesis of Copper Nanoparticles using extracts of Coldenia Procumbens

Sathish V1* , Roshini G1, Priyanka E1 , Tamilarasi A1 and Manigandan S1

1Department of Physics, SSN College of Engineering, Chennai-603110
Page Number: 10-19

The aim of this study to obtain copper nanoparticles (Cu NPs) through a method of green synthesis that involves using plant extract of Coldenia Procumbens. Cu NPs were successfully synthesized usingthegreen synthesis method in the experiments performed. Ultraviolet–visible (UV–Vis) spectrophotometryof the characteristics of the acquired Cu NPs was performed with scanning electron microscopy (SEM), Xray diffraction (XRD) and Fourier transform infrared spectrometry (FT-IR). It was found that the resultsof the SEM and XRD measurements that acquired the Cu NPs were in the size of 50 nm. Absorptionpeakat 283 nm and 483 nm were observed by UV of Cu NPs. Afterwards, the antibacterial activities of thesenanoparticles were measured, and it was understood from the obtained results that Cu NPs have bothantibacterial and antimicrobial activities

Keywords:CuNPs; Green synthesis; Nano particles; Coldenia Procumbens;


The significance of enhanced photocatalytic degradation of RhB on the synthesis, characterization, and effects of Ag doped CdS-WO2 Nano composites

Sathish V1*, Roshini G1 Priyanka E1 Manigandan S1 and Tamilarasi A1

1Department of Physics, SSN College of Engineering, Chennai – 603 110
Page Number: 20-32

A simple and sealing agent-free hydrothermal approach was used to fabricate the very modest Ag/CdS- WO2 Nano composite in this article. Powder X-ray diffraction (XRD) and UV-vis diffuse reflectance(DRS) spectroscopy was used to characterise the synthesized Ag loaded CdS-WO2 Nano composite. Under visible light irradiation (VLI), the photocatalytic activity of synthesized photocatalysts was testedfor the photodegradation of rhodamine B (RhB). pH, catalyst dose, oxidant dose, and irradiationtimewere the parameters employed to optimise the photocatalyst. A plausible reaction mechanismfor improving Ag/CdS-WO2 photocatalytic activity has been postulated based on this. As a result, we haveaninclination to assume that it could be a promising material for photodegradation of organic contaminantsin wastewater.

Keywords:Ag/CdS-WO2; Rh B; Photocatalyst; Visible light irradiation; Degradation


Micromagnetic simulation of vortex core polarity in bi-component magneticnanodisks

Payal Bhattacharjee 1, *

1Department of Basic Science and Humanities, Management House, Institute of Engineering&Management (IEM), Salt Lake Electronics Complex, Sector V, Kolkata 700091, India
Page Number: 33-37

The nucleation and management of the vortex state in magnetic nanostructures has received a lot of interest in recent decades, with potential applications in logic networks and non-volatile magneticrandom-access memory. Because of their potential use in magnetic memory, magnetic vortex structuresare of considerable technical importance. Investigation of bi-component magnetic nanodisks asprospective storage systems, in both single and coupled configurations, has been performed, wheretheinformation unit is represented by vortex core polarity. The work mainly engages in magnetic nanodisksof permalloy and iron having a diameter of 200 nm and a thickness of 40 nm. The potential of adjustingthe polarity of the vortex core by the application of a magnetic field using micromagnetic simulations hasbeen illustrated. Micromagnetic simulation studies show that bi-material structures are important not just for fundamental research but also for

Keywords: Magnetic vortex, Micromagnetic simulation, Iron, Permalloy, Dipolar coupling.


Low cost IoT based Heart Rate Monitoring systemusing node MCUanddetection of early heart attack

Sayan Ghosh1,* , Shourjyajit Maity1,*, Soumyajit Datta1 , Indumouli Nandy1 , Soumyadeep Nandy1, Viswajeet Sharan1 and Swati Chowdhury 1

1Institute of Engineering & Management, Salt Lake Electronics Complex, Sector V, Kolkata 700091, India
Page Number: 38-45

In this project, an IOT-based system has been implemented which can monitor heartbeat fromthe output given by a hardware system. This ‘Hardware System’ consists of a Node MCU and Pulse Sensor. An‘Alert System’ remains added, which gets executed if heartbeat goes below or abovethe permissible level. Through a ‘Mobile Phone Application’, Doctor receives the alert message and Doctor can access theheartbeat data of the patient from any location. Doctors and Nurses at hospital will be able to monitor theheart rate of the patient by virtue of Real time Monitoring System.’. Heartbeat data and other personal details of patient remain stored in cloud and can be utilized for future studies on health conditionof thepatient

Keywords: Heart rate monitoring system using, NodeMCU, Internet of things