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.
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;
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.
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.
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
