A5080950032- Complex Systems and Time Series Analysis
- Chaos control and synchronization
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Fractal and DNA sequence analysis
- Particle physics theoretical and experimental studies
- Theoretical and Computational Physics
- Statistical Mechanics and Entropy
- Climate variability and models
- Nuclear physics research studies
- Ecosystem dynamics and resilience
- Stochastic processes and statistical mechanics
- Nonlinear Dynamics and Pattern Formation
- Market Dynamics and Volatility
- Food Drying and Modeling
- Data Quality and Management
- Proteins in Food Systems
- Heart Rate Variability and Autonomic Control
- Radioactivity and Radon Measurements
- Lanthanide and Transition Metal Complexes
- Scientific Measurement and Uncertainty Evaluation
- African Botany and Ecology Studies
- Fire Detection and Safety Systems
- Advanced Database Systems and Queries
- Magnetic confinement fusion research
Indian Institute of Technology Guwahati
2023-2024
Institute for Plasma Research
2024
University of Calcutta
2013
Jadavpur University
2007-2010
In this paper multifractal detrended fluctuation analysis (MFDFA) is used to study the human gait time series for normal and diseased sets. It observed that long range correlation primarily responsible origin of multifractality. The reveals degree multifractality more set compared set. However, method fails distinguish between two
The multifractal properties of two-channel ECG patterns patients suffering from severe congestive heart failure (New York Heart Association (NYHA) classes III–IV) are studied and compared with those for normal healthy people using the detrended fluctuation analysis methodology. Ivanov et al (1999 Nature 399 461) have multifractality human rate dynamics wavelet transformation modulus maxima (WTMM) But it has been observed by several scientists that (MFDFA) works better than WTMM method in...
Radon anomaly acts as a precursor to seismic events. Hence the fluctuation pattern of time series radon bears lot significance. Multifractal detrended analysis (MFDFA) has been applied successfully in past various geo-electrical signals. The earthquake related signal duration three years (November 2005–November 2008) obtained from our experiment performed at Kolkata, India was analyzed framework MFDFA. study revealed that concentration is multifractal nature.
The time series for gold price has been investigated in past and it was observed that the multifractal properties.The data from 1973 to present divided into sets of five years each variation degree multifractality with is investigated.An attempt made physically interpret results make future predictions price.
The fluctuation of SENSEX in the Indian stock market for period Jan 2003–Dec 2009 is studied using multifractal detrended analysis (MFDFA) approach. effect fall 2008 also investigated. data exhibits that nonstationary time series fluctuations are nature. An increase degree multifractality prior to anomalous behaviour values observed. correlation 2007–2009 responsible meteoric rise and catastrophic SENSEX.
Himalayas is the home to nearly 10,000 glaciers which are mostly located at high and inaccessible region. Digital Elevation Model (DEM) can be effective in study of these glaciers. This paper aims providing an automated distinction glacial fluvial morphologies using multifractal technique. We have studied variation elevation profile Glacial Fluvial landscapes Multifractal Detrended Fluctuation Analysis (MFDFA). reveal more complex structure compared as indicated by fractal parameters degree...
Saliva has emerged as an efficient screening sample for early stage detection of oral cancer (OC) owing to non-invasiveness coupled with high sensitivity and specificity. Although spectroscopic characterization saliva in potentially malignant disorders OPMDs) OC is extensively studied, its potential imaging biomarker sparsely explored. Further, the literature on crystalline pattern other diseases or different physiological conditions mostly qualitative. This paper proposed multifractal based...
The EEG patterns for normal and epileptic rats were studied in the framework of multifractal detrended fluctuation analysis (MFDFA). found to be rats. For pattern was monofractal some cases others. degree multifractality higher sample compared sample.
Bright-field microscopy (BFM) encrypts the optical transillumination profile of transmitted light attenuated by complex micro-structural tissue convolutions, manifested dense and compact regions specimen under examination. The connotations idiosyncratic interaction dynamics with onset pre-cancerous activity are encoded in BFM acquired oral mucosa histopathological images (OMHI). In present study, our analysis is focused on sub-epithelium region mucosa, which has high clinical significance...
In this paper multifractal analysis of fluctuation pattern pions emitted in 32 S-AgBr and 16 O-AgBr interactions at 200 GeV 60 GeV, respectively, is performed the framework detrended (MFDFA). The pseudorapidity azimuthal distributions exhibit scaling properties both energies. variation width with energy also studied. study reveals a dependence on space while no such observed space.
Abstract The ADITYA upgrade (ADITYA-U), a medium-sized <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mrow> <mml:mo>(</mml:mo> <mml:msub> <mml:mi>R</mml:mi> <mml:mn>0</mml:mn> </mml:msub> </mml:mrow> <mml:mo>=</mml:mo> <mml:mn>75</mml:mn> <mml:mtext> cm</mml:mtext> <mml:mo>,</mml:mo> <mml:mstyle scriptlevel="0"/> <mml:mi>a</mml:mi> <mml:mn>25</mml:mn> <mml:mo>)</mml:mo> </mml:math> conventional tokamak facility in India, has been consistently producing...
This paper studies the cross-correlation between pseudorapidity and azimuthal distributions of shower particles emitted in [Formula: see text]S-AgBr interactions at 200[Formula: text]GeV text]O-AgBr 60[Formula: applying Multifractal detrended analysis (MF-DXA) methodology. The ([Formula: text]) space is found to exhibit multifractality case both interactions. results obtained from experimental data were compared with those for randomly shuffled interactions, revealed that due presence...
This paper studies the multifractality of time series atmospheric CO2 concentration using MFDFA methodology. The data recorded from Jubany Station, (Antarctica) during period 1994–2009 was analysed. further divided to subsets four years and analysis repeated. results show that complete set reveals more complex pattern than in most cases. degree correlation does not vary appreciably recent past. However a low value suggests is expected increase at higher rate future.
Background: Epileptic seizures can lead to changes in autonomic function affecting the sympathetic, parasympathetic and enteric nervous systems.Changes cardiac signals are potential biomarkers that may provide an extracerebral indicator of ictal onset some patients.Patients suffering from epilepsy experience significant during seizure, causing serious malfunctions which sudden unexpected death (SUDEP).The fluctuations observed heart rate process non-linear extremely complex.Chaos based...
In this research work, the devastation caused by forest fires has been studied and a monitoring alert system created to minimize losses such fires. There are numerous factors that either positively or negatively affect generation continuous spread of fires, which include multiple meteorological elements from Forest Fire Index. To understand relationship between those attributes, historical fire data Montesinho Natural Park was analyzed. Based on most significant factor observed performed...
This paper presents the results of an investigation on multiplicity dependence fluctuation pattern pions for entire accelerator energy range from 2.1 to 200 AGeV. The data set produced is divided into four sets depending number shower tracks ns. Analysis carried out in two-dimensional η–ϕ space with Hurst exponent take care anisotropy phase space. extracted by fitting one-dimensional factorial moment saturation curves Ochs' formula. values effective strength α eff are estimated and studied...