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U S. Senapati
A novel green synthesis route to extract Polyphenol loaded ZnO nanoparticles and their exciting structural and optical properties
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U. S. Senapati a*, A. Das a, P. Chauhan b, R. Dadhara b
a Department of Physics, Handique Girls’ College, Guwahati-781001, Assam, India
bAdvanced Level Institutional Biotech Hub, Handique Girls’ College, Guwahati-781001, Assam, India
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Mr Bhabajyoti Phukan (North Lakhimpur College (Autonomous))
Milk adulteration is a pervasive concern that adversely affects progressing countries like India. The addition of adultrants like glucose, caustic soda, refined vegetable oil, common detergent, etc into the milk lowers its nutritious value thereby posing a risk to health. Hence it is very important to test the purity of milk before consumption as synthetic milk and pure milk appear the same...
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Mr Padma Borah (Department of Mathematics, Gauhati University, Guwahati, Assam, INDIA, 781014)
The coronavirus disease (COVID-19) was first observed in December 2019 in the Wuhan Province of China and then it spread throughout the world. It affected the whole world in the most devastating way possible. In this paper, a nonlinear differential equation-based mathematical model is proposed to describe the spread dynamics of COVID-19 with the consideration of some important factors like...
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Gourav Jyoti Kalita (Gauhati University)
Conventionally, numerical weather prediction models are used for the prediction of weather conditions worldwide. However, these models are not affordable for everyone due to their high-end hardware requirements. Nowadays, machine learning models are being used in various fields of Earth and atmospheric sciences including classification of remote sensing images, land use land cover, change...
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Atowar Rahman
In this report, Polyaniline emeraldine base (PANI-EB) was synthesized by polymerization in ice bath and investigated the electrochemical behavior of Al3+ ion using 1M AlCl3, 0.5 M Al2(SO4)3 and 1M Al(NO3)3 aqueous electrolytes. Reduced graphene oxide (rGO)/PANI-EB and Carbon nanotube (CNT)/PANI-EB composites were also synthesized by in-situ polymerization. The crystallographic characterization...
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Dr Kakali Bhuyan (Bora) (North Lakhimpur College (Autonomous))
$SnO_2$, a n-type metal oxide semiconductor with a wide band gap of 3.6 eV has emerged as a potent gas sensing material. The gas sensing properties of $SnO_2$ can be further enhanced by doping it with foreign metals, noble elements and metal oxides in addition to reducing it to nanometer size. In this work we have studied the gas sensing performance of tin oxide by reducing it to nanometer...
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Ms Priyanka Sarmah
This research paper delves into the profound influence of various process conditions during the fermentation of tea on its sensory attributes. The key parameters under scrutiny in the fermentation process are temperature and relative humidity. These pivotal factors are monitored daily within a tea factory setting, facilitated by the installation of an RS 485 network-based instrumentation...
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Dibyajyoti Hazarika (Department of Mathematics, North Lakhimpur College (Autonomous)), Ms Purabi Borah (North Lakhimpur College (Autonomous))
In this paper, a fractional dynamical system is considered involving instantaneous impulses and non-local initial conditions. The fractional derivative is taken in Caputo sense with order $\alpha\in (0,1)$. The operator used in the system is the infinitesimal generator of an analytic semigroup on a Hilbert space. Sufficient conditions are derived to prove the existence of the mild solution of...
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Dr Dipankar Chetia (North Lakhimpur University), Dr Rosy Saikia (Gauhati University)
The study involves the estimation of uranium concentration in 598 groundwater samples obtained from five different districts in Assam during both pre-monsoon and post-monsoon seasons. Additionally, the research encompasses the monitoring of fourteen other water quality parameters. This paper specifically delves into the presence of nitrate and phosphate in groundwater and explores their...
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Mr Bali Kamum (Rajiv Gandhi University)
Abstract: In this work, carbon quantum dots (CQDs) were synthesized from banana peels using a cost-effective green hydrothermal method. The CQDs were characterized using UV-Vis and PL spectroscopy. UV-visible spectrophotometric investigations confirmed the presence of carbon dots showing two absorption peaks at ~252 nm and ~282 nm. The CQDs exhibit blue luminescence when exposed to ultraviolet...
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Mr Muhim Kuli (Gauhati University)
The dielectric resonator antenna (DRA) has taken the role of conventional radiating antennas with its superiority in radiation gain and efficiency such as microstrip and dipole antenna. These are particularly useful for high frequency applications. In this work, a cylindrical dielectric resonator antenna (CDRA) with coaxial probe feed at different position has been designed and briefly...
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Mr Diganta Kalita (NORTH LAKHIMPUR COLLEGE, ASSAM), Dr Jejiron Baruah (North Lakhimpur College)
In today’s world, the quest of multitasking ability of nanoparticles, especially quantum dots (QDs), is profoundly envisioned due to their analogousness with the atoms/molecules leading to the generation of discrete energy level, which is preeminent to various parallel applications viz, solar cells, LEDs, drug delivery, bio-markers, tracers, antibiotics etc. Amongst all drug delivery is...
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Partha Jyoti Sahu (Dibrugarh University)
Abstract
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The atmospheric boundary layer (ABL) is the lower part of the atmosphere, which is in continuous interaction with Earth’s surface due to friction and heating or cooling. The ABL extends upward from the surface to a height that ranges from 100-3000m. The ABL is often turbulent, with a strong diurnal cycle of temperature, wind, and other factors, particularly over land and ice... -
Victoria Puyam (Department of Physics, Manipur University)
The neutrino mass models containing different scalars are constructed using $A_{4}\times Z_{4}$ discrete symmetry group. The mass matrices are developed in such a way that they can give necessary deviation from Tribimaximal mixing to generate non-zero $\theta_ {13}$. The resultant mass matrices are analyzed and compared to understand the contribution of $A_{4}$ singlet scalars to the mass...
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Krishnanka Jyoti Baishya (Dibrugarh University)
Clouds occur both horizontally and vertically and are one of the most significant atmospheric constituents which play a vital role in the alteration of meteorological phenomena in a region. They can alter the climate by trapping the emitted longwave radiation from the earth, which warms the environment or by reflecting back the incoming solar radiation into space, cooling the atmosphere....
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Mr Diptimonta Neog (Department of Physics, North Eastern Regional Institute of Science and Technology)
Abstract: The studies of the Parton distribution function (PDFs) open a new way to a better understanding of the partonic quark-gluon structure of the nucleon. In the QCD study of high-energy processes, PDFs are essential. We study a few PDF sets with various Q2 ranges and momentum fraction x. All PDFs’ numerical values have been taken from the LHAPDF library, a user-friendly interface to PDF...
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BIDYUT BIKASH SAIKIA (Department of Physics, C N B College, Bokakhat 785612, India)
Bidyut B Saikia1,4, Nabajyoti saikia2, Jyoti Prasad Gogoi3 and Prince K Mochahari4
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1Department of Physics, C N B College, Bokakhat 785612, India
2Department of Chemistry, Kaziranga University, Jorhat 785006, India
3Department of Physics, D K D College, Dergaon 785614, India
4Department of Physics, Bodoland University, Kokrajhar 783370, India
E-mail: sbidyutbikash@gmail.com
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Ms Aidashisha Bareh (The Assam Royal Global University)
Abstract:
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A crucial and fundamental problem in ionospheric physics is the ionosphere's dependency on solar activity. This dependence provides information that is necessary to comprehend the ionosphere's changes and its processes. Here in this work, ionospheric electron densities and fof2 is utilized to characterize large-scale ionosphere responses during 2015 geomagnetic storm. With the data... -
Mr Lolit Missong (Madhabdev University, Dibrugarh University)
The electronic nose system is a remarkable technological advancement that replicates the olfactory capabilities of humans and animals using electronic sensors. These sensors generate electrical responses that correspond to the presence and concentration of specific analyte gases, making them invaluable in various applications, including environmental monitoring, quality control in the food...
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Prankrishna Borgohain (Tezpur University)
Patterns emerge in spatially extended systems at all scales, from astronomical to micrometer. The appearance of galaxies in a spiral, elliptical, or irregular form, the patterns formed by a starving colony of slime molds, wind-swept sand patterns in rivers and deserts, patterns in zebra and snow leopards are a few examples. The hexagonal pattern in Rayleigh-Benard experiment and spiral wave in...
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Mr ACHYUT SARMA HAZARIKA (ASSISTANT PROFESSOR)
Fuel cells are projecting as beneficial energy conversion device and popular among researchers as ecofriendly, cost effective with high output alternative to traditional fuel. The component bipolar plates (BPs) in fuel cell unit distribute gases (H2 and O2), prevent gas leakage and guide the flow of electricity and heat within the stack. Sustainability of BP is determined by working efficiency...
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Mr Raj Paul (M. Tech Student, Information Technology)
ABSTRACT: The project aims to develop an integrated IoT and AI-based smart system for real-time monitoring of environmental and physiological parameters while moving on the road from location to destination. Monitoring of parameters such as pollutants material present in the air, oxygen level, air quality and physiological metrics like heartbeat, blood oxygen level of the person concerned...
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Mr Biprav Chetry (Tezpur University)
Optical microscopy is widely regarded as the preferred imaging technology in the broad domains of healthcare, biology, and other different fields of application. It is a powerful tool that enables the visualisation and investigation of the complex and dynamic characteristics inherent in the cellular and sub-cellular structures of various specimens. However, despite its extensive utilisation...
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Ms Sneha Singh (Gauhati University)
Analysis of phase lock loop (PLL) using Simulink is an efficient method. Designing a PLL on a chip is a tedious process as it requires a lot of sums to fabricate it and consume months of time for development. Hence, we need another alternative to know whether the design will work or not and so Simulink is the preferred choice. SIMULINK provides a platform for graphical editing of blocks,...
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Ms Riki Baruah
Electronic devices that are optically transparent have sparked a lot of curiosity. Many new applications for transparent electronics are being developed in a wide range of industries, including displays, glasses, solar panels, terrestrial and satellite communications, integrated circuits, and sensors, where optical transparency is necessary for the covert placement of electronic devices on...
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Mr Pankaj Baruah (Department of Electronics and Communication Technology, Gauhati University)
In this work, we proposed a method to design, develop and implement an Android application based battery tester for USB based system, such as: smart phones, tablets, or other USB powered devices to evaluate its performance. In the proposed method, a shunt resistor of known value is selected. The output of the USB powered devices is applied to the resistor through its USB port. The voltage drop...
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Mr Ranjan Saikia (Tezpur University)
Many deep inelastic scattering (DIS) experiments conducted on hadrons by leptons on the experimental site have produced important data on the distribution of partons within hadrons. Theoretical analysis of distribution at the various kinematical regions of small-$x$ (Bjorken's $x$) and $Q^2$ of DIS experiments is facilitated by the use of quantum chromodynamics (QCD) evolution equations. The...
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Takio Yagin (RAJIV GANDHI UNIVERSITY)
In today’s IOT based world, tactile sensors play a vital role in providing information arising from physical interaction with surrounding environment. Amongst various types of tactile sensors, piezoelectric nanogenerator based sensors are quite effective owing to their efficient performance under any small external stimuli. Especially polymer based flexible piezoelectric nanogenerators are...
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Pranab Jyoti Bhuyan
The unique low-temperature characteristics exhibited by disordered materials have garnered significant research attention over an extended period. These materials' specific heat and thermal conductivity properties are termed as anomalous to emphasize their intriguing deviations from those observed in crystalline materials. Consequently, they have attracted substantial investigative efforts,...
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Ronit Karmakar
We compute the efficiencies of AdS-Reissner-Nordstrom black hole as heat engines in the framework of Rastall gravity. For this purpose, we construct a conventional heat engine system out of a black hole and tried to analyse the influence of various parameters of the theory on the efficiency of the engine. We also compared the obtained efficiencies with the carnot efficiency which is the...
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Mr Joydeep Thakur (University of North Bengal)
We study the elliptic flow parameter $(v_2)$ and its event-by-event (e-by-e) fluctuation for the charged hadrons produced in $^{197}$Au+$^{197}$Au collisions at the nucleon-nucleon center of momentum energy $\sqrt{s_{\rm NN}} = 7.7$, $11.5$, $19.6$, $27.0$, $39.0$ and $62.4$ GeV of the STAR Beam Energy Scan (BES) program. We use A Multiphase Transport (AMPT) model in its string melting (SM)...
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Palash Hazarika (Department of Physics, Madhabdev University, Narayanpur, Lakhimpur, Assam-784164)
In the realm of nanotechnology, the synthesis of nanoparticles with unique properties and applications continues to be a subject of intense research. Due to its higher electrical as well as thermal conductivity, strong anti-biocidal activities and higher catalytic activity for oxidation of ethylene, silver nanoparticle (Ag-NP) has become intensively studied metal nanoparticles. In this work,...
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Ms Susmita Baruah (Tezpur University)
We have explored spherical AuNPs anchored GO modified PEDOT-PSS based bioelectrode for sensing mycotoxin (especially, Aflatoxin B1). Synthesis of PEDOT-PSS over ITO electrode was carried out by adapting simple electrochemical polymerization technique in presence of GO as dopant. Further, uniform distribution of AuNPs on the surface of GO/PEDOT-PSS/ITO electrode was achieved by electrochemical...
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Mr Gourav Jyoti Kalita (Department of Electronics and Communication Technology, Gauhati University)
Safety and security of personal assets has become a critical concerns in today’s society. This calls for the development of sophisticated and efficient surveillance systems [1, 2]. With the advent of technology and Internet of Things, faster and low-cost computing hardware with high performance sensors and multi-camera units enables the design and implementation of real time monitoring systems...
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Dilip Saikia (Silapathar College, Silapathar, Dhemaji)
Quantum dots are nanostructured semiconductor materials whose dimension is comparable to the de Broglie wavelength of free electrons. Due to the quantum confinement effect, the motion of the electrons present in the quantum dots is restricted in all three dimensions and the electronic energy states become quantized as compared to their bulk counterparts. This quantization of energy states...
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Naba Jyoti Gogoi (PhD Research Scholar)
Our presentation is based on the thermodynamic topology of the Euler-Heisenberg-AdS black hole and the higher-order Euler-Heisenberg-AdS black hole. This investigation is carried out by considering the generalized off-shell free energy approach, where black holes are conceptualized as defects in the thermodynamic space. Our study adopts the newly introduced residue method for this purpose. Our...
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Mr Biki Mudoi (Madhabdev University)
As the global population continues to expand, the demand for increased food production places substantial pressure on agriculture to optimize resource use and mitigate plant stress. Modern technologies, such as IoT-based plant monitoring and automated irrigation, offer vital solutions. These systems utilize sensors and technologies to continuously monitor soil moisture, environmental...
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Dr. Shyamalima Chowdhury (Darrang College, Tezpur)
The growing world energy demands, limited fossil fuel resources, as well as considerations based on greenhouse gas emissions, are motivating the search for viable renewable energy sources. Among the possibilities, solar energy conversion is of great interest because it is globally available, inexhaustible, and electrical energy can be converted to other energy currencies such as hydrogen....
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Bhabana Kumar (Tezpur University)
This paper present a comprehensive investigation into the construction of a neutrino mass model utilizing the $\Gamma (3)$ modular group, which exhibits an isomorphism with the $A_{4}$ symmetric group. The study focuses on developing a left-right asymmetric model by incorporating modular symmetry. An advantageous aspect of employing modular symmetry in our model is the elimination of need for...
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Jotin Gogoi (Tezpur University)
We have studied neutrino masses and mixings by adding a scalar triplet $\eta$ to the particle content of minimal inverse seesaw. In order to realize this extension of minimal inverse seesaw we implement an isomorphic modular group $\Gamma(3)$ and a non-abelian discrete symmetry group $A_4$. The use of modular symmetry in our work helps us to reduce the number of flavons. We have also used...
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Jyoti Prasad Deka (Girijananda Chowdhury University)
In this work, we investigated the temporal evolution of optical power in the Ikeda Map with Balanced Gain and Loss. The system comprises two feedback loops which impart saturation nonlinear phase shift on the propagating fields and interact with each other via a 50:50 directional coupler. The attenuation and amplification are distributed equally in the feedback loops in the configuration. From...
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Mr Bikash Kumar Das (Tezpur University)
The topic of structural color is crucial in the current world since it affects both industrial applications and our day-to-day lives. The current study delves further into the significance of microstructures in determining the visual appearance of three distinct colors of bougainvillea flower petals: pink, yellow-orange, and white. With the aid of a field-emission scanning electron microscope...
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Abinash Das (North Lakhimpur College(Autonomous))
The well-known one-dimensional wave equation for a vibrating string holds good only for slowly varying waves with the motion being confined in a plane. Furthermore, it is assumed that the strain is uniform and small. Here we generalize the wave equation for the vibration of a string under non-uniform tension and arbitrary initial deformation.
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Dr Vivek Baruah Thapa (Bhawanipur Anchalik College)
In this study, we investigate the influence of the nuclear symmetry energy slope on the equation of state (EoS) of dense matter with Δ-admixed exotic matter in neutron stars and its consequences for neutron star (NS) observable properties such as mass-radius
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relationships and tidal responses. The equation of state is formulated within the framework of covariant density functional theory,... -
Yumnam Monitar Singh
The neutrino oscillation parameters are numerically extracted through the diagonalization of a general Majorana neutrino mass matrix whose elements are randomly generated within certain range of allowed values. The allowed values of each element are determined by using the latest neutrino oscillation experimental data within 3$\sigma$. The latest Planck upper bound on the sum of three absolute...
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Ms Violina Das
Performance analysis of MASnI3 based solar cell with Gold (Au) as back metal contact using 1D-SCAPS simulation program.
Violina Das 1, Devika Phukan2
1,2 Department of Physics, Royal Global University, Guwahati 781035, Assam,
Email id: dasviolina026@gmail.comAbstract
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In this present work we report a numerical modeling for performance analysis of Methyl ammonium tin iodide (MASnI3)... -
Pranjal Sarmah (Dibrugarh University)
Isotropy and homogeneity are the two assumptions on which the standard cosmology stands. However, some observational deviations from the standard cosmological predictions have made the researchers more interested in anisotropic cosmological models. Locally rotationally symmetric Bianchi type I (LRS-BI) metric is one of the simplest yet prominent candidates to study the anisotropic...
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Happy Borgohain
Abstract:
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After classifying all the possible texture zeros in light Dirac neutrino mass matrix in diagonal charged lepton basis, we studied the phenomenology of the texture zeros that are compatible with recent neutrino data. We consider the general (non-Hermitian) nature of the neutrino mass matrix which leads to more possibilities and freedom due to additional CP phases, mixing angles not... -
Eyangi Mihu (Rajiv Gandhi University)
Abstract: Plants and their extracts play a crucial role in the green synthesis of nanoparticles because of their environmental friendliness. In this work, an efficient hydrothermal approach was used to synthesize gold nanoparticles (GNps) using tea leaf extract. The GNps were characterized using UV-Vis and PL spectroscopy. UV-visible spectrophotometric investigations confirmed the presence of...
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Mr SUBHAM DUTTA (TEZPUR UNIVERSITY)
Plasma fireball and dominant instabilities: A brief overview
Subham Dutta and Pralay Kumar Karmakar
Department of Physics, Tezpur University, Napaam-784028, Tezpur, Assam, India
Email: subham.dtta@gmail.com, subhamd@tezu.ernet.inAbstract: An externally biased electrode submerged in a plasma chamber excites a plethora of waves and instabilities [1]. One of the special...
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Hitendra Sarkar (Gauhati University)
In recent years, theoretical and numerical studies have been carried out on the excitation of collision-less shocks due to moving charge-density objects in both electron-ion plasma [1] and dusty plasma [2]. However, it is well-established that a dusty plasma can have dust grains of opposite polarity depending on the size of the grains and hence the characteristics of potential shock structures...
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Nilutpal Bora (NERIST, Arunachal Pradesh)
In recent years, there has been a noteworthy surge in interest surrounding indoor photovoltaic (IPV) devices due to their promising potential for powering small, portable electronics and self-powered Internet of Things (IoT) devices. Cadmium Telluride (CdTe) solar cells stand as a significant player in the global photovoltaic (PV) technology landscape, ranking as the second-fastest-growing PV...
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Dr Atanu Nath (Tihu College, Tihu)
The muon anomalous magnetic moment, denoted as aμ=(g−2)/2, serves as a crucial low-energy observable, offering an exceptional avenue for precision measurement and computational evaluation. This parameter stands as a rigorous litmus test for the Standard Model (SM) of particle physics and provides a sensitive window into potential new physics beyond the SM framework. Recent concerted efforts...
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Mr Ritupurna Baishya (Tezpur University)
The ever-increasing demand for energy in day-to-day life thrives the world towards developing highly efficient, powerful energy storage devices. Since its commercialization by SONY in 1991, the lithium-ion batteries (LIBs) have revolutionized the energy sector and been used as a major power source in various portable electronic devices and electric cars. But in light of the concerns like...
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Mr Swaraj Pratim Sarmah (Dibrugarh University)
While the origins of ultra-high energy (UHE) cosmic rays remain shrouded in uncertainty, several important milestones have been reached in recent years in the experimental study of cosmic rays with energy above $10^{18}$ eV. Within the vast expanse of intergalactic space, turbulent magnetic fields (TMFs) are believed to pervade, and these fields could exert a significant influence on the...
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Dr Papul Changmai (Assam Don Bosco University)
Deployment of Computational physics through the paradigm of loosely coupled microservices can play a vital role for parallel computing that can be utilized for estimation of solar PV power. As such we propose to deploy a novel model that can be used to perform different computational logic for the domain of physics. We call this model as MicroComPhy (Microservice for Computational Physics). As...
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Dr Manoranjan Dutta
The cold, collisionless dark matter (DM) postulated in the $\Lambda CDM$ model leads to several small scale anomalies such as the cusp-core problem, the missing satellites problem and the too big to fail problem. Self-interacting dark matter (SIDM), a promising alternative type of dark matter, not only alleviates the small scale anomalies, but also matches with highly accurate large scale...
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Mr Hari Prasad Saikia (Deparment of Physics, Dibrugarh University)
The study of black hole shadows after the discovery of the M87 black hole by the Event Horizon Telescope (EHT) has gained major interest recently. In this work, we have studied the shadows of a renormalization group improved (RGI) black hole system surrounded by two types of plasma media, viz homogeneous and inhomogeneous plasma. We have found that the associated free parameter $\xi$...
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Jagat Dwipendra Ray (The Assam Kaziranga University, Jorhat, Assam)
The Earth system is composed of the atmosphere, hydrosphere, geosphere, and biosphere. The mass of the Earth system remains constant, however, there is a redistribution of mass between the compartments. This mass redistribution gets perturbed by the variations in the precipitations induced by climate change. The surface of the Earth responds elastically to these mass variations and it can be...
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3. Spectral and temporal properties of GX 17+2 utilizing a simultaneous view from AstroSat and NICERDr Biplob Sarkar (Department of Applied Sciences, School of Engineering, Tezpur University)
We report the analysis of the Z-track neutron star (NS) low-mass X-ray binary (LMXB) GX 17+2 using the simultaneous data from the AstroSat (LAXPC/SXT) and NICER mission data. On segmenting the hardness intensity diagram (HID) into three slices—horizontal branch (HB), hard apex (HA), and normal branch (NB)- we investigate the variability of the source and its spectral state evolution throughout...
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Mr Nishant Bharali (CPP-IPR)
The need for a small scale portable neutron source is always immense. The inertial electrostatic confinement (IEC) device is one such device which uses electric field to produce neutron through D-D or D-T fusion [1,2]. In CPP-IPR the maiden IECF device uses deuterium plasma to produce neutron in the order of 10^7 n/s in triple grid cylindrical geometry [3]. The electric field produced due to...
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Mr Kaushik K Nath (Tezpur University)
Abstract
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Recently, atmospheric dielectric barrier discharge (A-DBD) has gained recognition as a practical technique for modifying the surface properties of polymers. It has the ability to alter the chemical and physical properties of material surfaces at room temperature without any change to their bulk properties. For this study, A-DBD plasma treatment has been carried out on electrospun... -
Dr Pallabi Gogoi (Behali Degree College)
Nanocrystalline (Mg0.95Zn0.05)TiO3 thin films were deposited on to quartz and Pt/TiO2/SiO2/Si substrates by radio-frequency reactive magnetron sputtering. The (Mg0.95Zn0.05)TiO3 sputtering target was prepared by solid state reaction method. The effect of deposition gas ratio i.e. ratio of oxygen and argon (O2/Ar) on structural and optical properties of (Mg0.95Zn0.05)TiO3 thin films were...
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Bidyut Hazarika (Research Scholar,Department of Physics,Dibrugarh University)
In this work, we study the thermodynamic topology of a superfluid black hole solution in Horava gravity known as the Horava Lifshitz (HL) black hole in canonical ensemble. This exotic black hole solution belongs to a special class of of black holes whose thermodynamics exhibit a line of (continuous) second order phase transitions known as $\lambda$ phase transitions akin to those observed in...
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BIKASH BARO (Rajiv Gandhi University, Arunachal Pradesh.)
The conversion of mechanical energy into electrical energy through the triboelectric nanogenerator (TENG) which works on the principle of triboelectrification and charge induction, is one of the methods to harvest mechanical energy from our surroundings and biomechanical movements. The external stimuli like pressure, humidity, sweat, temperature, etc can affect the output performance of a...
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Barsha Dutta (Dibrugarh University), Dr Rumajyoti Hazarika (Jengraimukh College)
Tropical Cyclones (TCs) are one of the most significant weather phenomena in the Earth's lower atmosphere that causes a variety of damages and large scale destruction to lives and property due to violent winds, heavy rain (torrential rainfall) and storm surges. TCs, also referred to as hurricanes in the Atlantic Ocean and eastern Pacific Ocean and typhoons in the western Pacific, is a low...
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Dr Kaushik Das (Birjhora Mahavidyalaya under Gauhati University)
Fatty acid Langmuir monolayers and multilayers are very fascinating two-dimensional system formed at the air-water interface. These layers show thermodynamically metastable behaviours through different phases and phase transitions. Langmuir-Blodgett (LB) films provide the transfer of monolayer onto solid surfaces to study their morphological, structural, and optical properties. Similarly,...
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Ms Ankita Kakoti (Tezpur University)
In this work, the Left-Right Symmetric Model (LRSM) has been realized with the modular group of level 3, that is, $\Gamma(3)$ and weight 2, which is isomorphic to non-abelian discrete symmetry group $A_4$. As, it is a well known fact there are physics beyond the Standard Model framework, where several phenomenological studies can be carried out. In our present work, we are concerned about the...
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Munmee Borah (North Lakhimpur College (Autonomous))
Abstract—A discrete time z – domain high frequency phase – locked loop model is presented in this paper. The z – domain transfer functions of the proposed system is derived by using impulse invariant technique to achieve an overall behavioral performance of the system. A second order active standard feedback approach filter is used in the loop to investigate the stability of the system. The...
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Rashmi Roy Karmakar (Rajiv Gandhi University)
In this paper, we have examined the vital field of gas sensors, which is crucial for environmental monitoring, industrial safety, and healthcare. One of the most important properties of gas sensors is their selectivity, or their capacity to precisely identify and discriminate particular gases in intricate combinations. Selectivity is influenced by a number of important parameters, some of...
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Mr Hrishi Bora (Tezpur University), Prof. Ng. K. Francis (Tezpur University), Mr Animesh Barman (Tezpur University)
We formulate and discuss the neutrino mass matrices for the present neutrino oscillation data. The matrices are discussed numerically in the framework of the $\Delta(54)$ flavor model with the double inverse seesaw mechanism for Majorana neutrinos. We introduced Vector like (VL) fermions which are all Standard Model gauge singlets. We use extra symmetry to constrain the unwanted terms in our...
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