Dr. Debiprosad Roy Mahapatra Profile

Dr. Debiprosad Roy Mahapatra

Associate Professor at Indian Institute of Science

SPIE Involvement:

Author

Area of Expertise:

Mechanics of Materials , Smart Sensors and Actuators , Structural Health Monitoring , Nanotechnology , Nanophotonics , Multifunctional Imaging

Publications (58)

Proceedings Article | 22 April 2016 Paper

Fluorescence intensity enhancement mechanism in presence of plasmonic nanoparticles

Sumana Das, Brahmanandam Javvaji, Krishna Villa, Akshata Arikady, Gopalkrishna Hegde, D. Mahapatra

Proceedings Volume 9724, 97240K (2016) https://doi.org/10.1117/12.2217940

KEYWORDS: Nanoparticles, Luminescence, Molecules, Gold, Target detection, Plasmonics, Plasmons, Transmittance, Biosensing, Diagnostics, Zinc oxide, Electromagnetic radiation, Microfluidics, Data modeling

Read Abstract +

Proceedings Article | 15 March 2016 Paper

Magnetic nanoparticles for thermal lysis and application in cancer treatment

Sumana Das, Brahmanandam Javvaji, Sarath Chandra Veerla, D. Roy Mahapatra

Proceedings Volume 9708, 97083C (2016) https://doi.org/10.1117/12.2217931

KEYWORDS: Magnetism, Nanoparticles, Cancer, Oncology, Finite element methods, Tissues, Systems modeling, Chemical species, Molecules, Functional imaging, Radiotherapy, Temperature metrology, In vitro testing, Tumors

Read Abstract +

Proceedings Article | 14 March 2016 Paper

Nanostructure-based enhancement of performance in thin-film photovoltaic devices

Jagdish A. K., Sibimol Luke, Praveen Ramamurthy, D. Roy Mahapatra, Gopalakrishna Hegde

Proceedings Volume 9743, 97431J (2016) https://doi.org/10.1117/12.2217944

KEYWORDS: Thin film solar cells, Photovoltaics, Nanostructures, Absorption, Thin film devices, Thin films, Light scattering, Computer architecture, Scattering, Solar cells, Nanostructuring, Electrodes, Optoelectronics, Organic photovoltaics

Read Abstract +

Proceedings Article | 29 February 2016 Paper

Optical diagnostics of osteoblast cells and osteogenic drug screening

Elayaraja Kolanti, Sarath Veerla, Deepak Khajuria, D. Roy Mahapatra

Proceedings Volume 9689, 96894I (2016) https://doi.org/10.1117/12.2217943

KEYWORDS: Imaging spectroscopy, Microfluidics, Diagnostics, In vitro testing, Fluorescence spectroscopy, Spectroscopes, Luminescence, Optical fibers, Animal model studies, Tissues, Bone, Lab on a chip, In vivo imaging

Read Abstract +

Proceedings Article | 9 December 2015 Paper

Enhancement mechanism of fluorescence intensity in presence of plasmonic nanoparticles

Sumana Das, Ramakrishna Vasireddi, Krishna Harika Villa, Brahmanandam Javvaji, Gopalkrishna Hegde, D. Roy Mahapatra

Proceedings Volume 9792, 979208 (2015) https://doi.org/10.1117/12.2207565

KEYWORDS: Luminescence, Nanoparticles, Plasmonics, Gold, Resonance enhancement, Target detection, Plasmons, Transmittance, Biosensing, Diagnostics, Molecules, Microfluidics, Electrons, Surface plasmons

Read Abstract +

Proceedings Article | 3 April 2015 Paper

Dynamics of plasmon in graphene oxide

Brahmanandam Javvaji, D. Mahapatra, S. Raha

Proceedings Volume 9434, 94340M (2015) https://doi.org/10.1117/12.2085720

KEYWORDS: Graphene, Plasmons, Chemical species, Oxides, Electromagnetism, Scattering, Oxygen, Nanostructures, Plasmonics, Carbon

Read Abstract +

Proceedings Article | 1 April 2015 Paper

Effects of interface treatment on the fatigue behaviour of shape memory alloy reinforced polymer composites

S. Hiremath, K. Harish, Ramakrishna Vasireddi, M. Benal, D. Mahapatra

Proceedings Volume 9432, 94320V (2015) https://doi.org/10.1117/12.2182279

KEYWORDS: Shape memory alloys, Composites, Interfaces, Polymers, Epoxies, Nickel, Fiber reinforced polymers, Fiber lasers, Absorption, Mechanical engineering

Read Abstract +

Proceedings Article | 1 April 2015 Paper

Modeling ultrasonic NDE and guided wave based structural health monitoring

Nitin Ravi, Vivek Rathod, Nibir. Chakraborty, D. Mahapatra, Ramanan Sridaran, Christian Boller

Proceedings Volume 9437, 94371V (2015) https://doi.org/10.1117/12.2085000

KEYWORDS: Ray tracing, Structural health monitoring, Scattering, Waveguides, Nondestructive evaluation, Reflection, Transducers, Wave propagation, Ultrasonic non-destructive evaluation, Inspection

Read Abstract +

Proceedings Article | 27 March 2015 Paper

Temperature compensation in CNT-composite distributed strain sensors

V. Sundararaman, V. Rathod, D. Mahapatra

Proceedings Volume 9436, 94360M (2015) https://doi.org/10.1117/12.2175489

KEYWORDS: Sensors, Resistance, Nanocomposites, Wheatstone bridges, Calibration, Temperature metrology, Polymers, Bridges, Carbon, Polymeric sensors

Read Abstract +

Proceedings Article | 26 March 2015 Paper

Dynamic response of a piezoelectric flapping wing

Alok Kumar, Gaurang Khandwekar, S. Venkatesh, D. Mahapatra, S. Dutta

Proceedings Volume 9429, 94290O (2015) https://doi.org/10.1117/12.2180156

KEYWORDS: Ferroelectric materials, Aerodynamics, Micro unmanned aerial vehicles, Coating, Microelectromechanical systems, Aerospace engineering, Sensors, Titanium, Electrodes, Data modeling

Read Abstract +

Proceedings Article | 16 March 2015 Paper

Optoelectronic properties of graphene on silicon substrate: effect of defects in graphene

Brahmanandam Javvaji, M. Ajmalghan, D. Roy Mahapatra, M. R. Rahman, G. M. Hegde

Proceedings Volume 9357, 93571X (2015) https://doi.org/10.1117/12.2084796

KEYWORDS: Graphene, Silicon, Chemical species, Optoelectronics, Carbon, Electromagnetism, Silicon carbide, Nanostructures, Superlattices, Optical instrument design

Read Abstract +

Proceedings Article | 16 March 2015 Paper

Understanding degradation phenomena in organic electronic devices

Jagdish A.K., G. Pavan Kumar, Praveen Ramamurthy, D. Roy Mahapatra, Gopalkrishna Hegde

Proceedings Volume 9360, 93600S (2015) https://doi.org/10.1117/12.2082576

KEYWORDS: Polymers, Aluminum, Polymer thin films, Electrodes, Organic electronics, Thin film devices, Instrument modeling, Failure analysis, Semiconductors, Thin films

Read Abstract +

Proceedings Article | 2 March 2015 Paper

Plasmonic nanoparticle interaction with cell membrane for diagnostic applications

Sumana Das, Akshata Arikady, Ramakrishna Vasireddi, Krishna Harika, Manish Konnur, Gopalkrishna Hegde, D. Roy Mahapatra

Proceedings Volume 9310, 93100A (2015) https://doi.org/10.1117/12.2082598

KEYWORDS: Nanoparticles, Plasmonics, Microfluidics, Luminescence, Plasmons, Gold, Diagnostics, Surface plasmons, Transmittance, Photodetectors

Read Abstract +

Proceedings Article | 26 February 2015 Paper

Photonic monitoring of chitosan nanostructured alginate microcapsules for drug release

Deepak Kumar Khajuria, Manish Konnur, Ramakrishna Vasireddi, D. Roy Mahapatra

Proceedings Volume 9303, 93033V (2015) https://doi.org/10.1117/12.2084966

KEYWORDS: Microfluidics, Polymers, In vitro testing, Nanoparticles, Luminescence, Absorption, Sodium, Bone, Microscopy, Ions

Read Abstract +

Proceedings Article | 16 April 2014 Paper

Molecular dynamics study of phonon screening in graphene

Brahmanandam Javvaji, D. Roy Mahapatra, S. Raha

Proceedings Volume 9060, 90600H (2014) https://doi.org/10.1117/12.2047308

KEYWORDS: Phonons, Graphene, Scattering, Terahertz radiation, Chemical species, Picosecond phenomena, Wave propagation, Acoustics, Crystals, Modulation

Read Abstract +

Proceedings Article | 10 April 2014 Paper

Strength and fatigue life evaluation of composite laminate with embedded sensors

Vivek Rathod, S. Hiremath, D. Roy Mahapatra

Proceedings Volume 9062, 90620X (2014) https://doi.org/10.1117/12.2047323

KEYWORDS: Sensors, Ferroelectric polymers, Composites, Connectors, Nanocomposites, Transducers, Electrodes, Structural health monitoring, Acoustic emission, Interfaces

Read Abstract +

Proceedings Article | 10 April 2014 Paper

Ultrasonic guided wave sensing properties of PVDF thin film with inter digital electrodes

Vivek Rathod, D. Roy Mahapatra

Proceedings Volume 9062, 90620U (2014) https://doi.org/10.1117/12.2047314

KEYWORDS: Sensors, Ferroelectric polymers, Waveguides, Ultrasonics, Electrodes, Actuators, Structural health monitoring, Thin films, Wave propagation, Semiconducting wafers

Read Abstract +

Proceedings Article | 1 April 2014 Paper

Shape memory alloy-based active chiral composite cells

Maulik Prajapati, D. Roy Mahapatra

Proceedings Volume 9057, 90573C (2014) https://doi.org/10.1117/12.2047329

KEYWORDS: Shape memory alloys, Actuators, Composites, Skin, Aerodynamics, Structural design, Smart materials, Stars, Chemical elements, Aerospace engineering

Read Abstract +

Proceedings Article | 20 March 2014 Paper

Interfacial stresses in shape memory alloy-reinforced composites

S. Hiremath, Maulik Prajapati, S. Rakesh, D. Roy Mahapatra

Proceedings Volume 9058, 905806 (2014) https://doi.org/10.1117/12.2047331

KEYWORDS: Shape memory alloys, Interfaces, Composites, Epoxies, Actuators, Fiber reinforced polymers, Absorption, Laser bonding, Polymers, Standards development

Read Abstract +

Proceedings Article | 13 March 2014 Paper

Detection of target DNA using photo-reactive protoporphyrin moeity on a nanocomposite substrate

Sumana Das, Madhusmita Mishra, Ramakrishna Vasireddi, D. Roy Mahapatra

Proceedings Volume 8933, 893308 (2014) https://doi.org/10.1117/12.2042556

KEYWORDS: Zinc oxide, Light emitting diodes, Target detection, Nanocomposites, Microfluidics, Nanomaterials, Molecules, Electrodes, Oxygen, Nanorods

Read Abstract +

Proceedings Article | 9 March 2014 Paper

Estimation of fatigue damage parameters using guided wave technique

V. Rathod, D. Roy Mahapatra

Proceedings Volume 9064, 90642B (2014) https://doi.org/10.1117/12.2047326

KEYWORDS: Waveguides, Sensors, Actuators, Wave propagation, Semiconducting wafers, Wave plates, Lithium, Mechanics, Ultrasonics, Linear filtering

Read Abstract +

Proceedings Article | 7 March 2014 Paper

Electronic band structure and photoemission spectra of graphene on silicon substrate

Brahmanandam Javvaji, Abhilash Ravikumar, B. Shenoy, D. Roy Mahapatra, M. Rahman, G. Hegde

Proceedings Volume 8980, 89801B (2014) https://doi.org/10.1117/12.2042576

KEYWORDS: Graphene, Silicon, Electrons, Dielectrics, Nanoelectronics, Nanotechnology, Chemical species, Optoelectronics, Crystals, Electromagnetic radiation

Read Abstract +

Proceedings Article | 4 March 2014 Paper

Photonic hydrogel beads for controlled release of risedronate

Deepak Khajuria, D. Roy Mahapatra

Proceedings Volume 8926, 892640 (2014) https://doi.org/10.1117/12.2042568

KEYWORDS: Composites, Luminescence, Sodium, Bone, Molecules, Coating, Stomach, Scanning electron microscopy, Absorption, Macromolecules

Read Abstract +

Proceedings Article | 19 February 2014 Paper

Transient dynamic distributed strain sensing using photonic crystal fibres

Shafeek Samad, G. Hegde, D. Roy Mahapatra, S. Hanagud

Proceedings Volume 8994, 89940B (2014) https://doi.org/10.1117/12.2042574

KEYWORDS: Silicon, Waveguides, Sensors, Photonic crystals, Finite element methods, Structural health monitoring, Aerospace engineering, Etching, Distributed Bragg reflectors, Fiber Bragg gratings

Read Abstract +

Proceedings Article | 22 June 2013 Paper

Effect of stress and interface defects on photoluminescence of Si nano-crystals embedded in SiO[sub]2[/sub]

Bhamy Shenoy, G. Hegde, D. Mahapatra

Proceedings Volume 8769, 87692N (2013) https://doi.org/10.1117/12.2020489

KEYWORDS: Silicon, Chemical species, Luminescence, Interfaces, Crystals, Silica, Oxygen, Annealing, Lead, Amorphous silicon

Read Abstract +

Proceedings Article | 22 June 2013 Paper

Analysis of grating inscribed micro-cantilever for high resolution AFM probe

N. Balajee, D. Mahapatra, G. Hegde

Proceedings Volume 8769, 87690Z (2013) https://doi.org/10.1117/12.2020330

KEYWORDS: Diffraction gratings, Atomic force microscopy, Sensors, Silicon, Diffraction, Mathematical modeling, Reflection, Interferometers, Reflectivity, Imaging systems

Read Abstract +

Proceedings Article | 17 April 2013 Paper

Guided ultrasonic wave propagation through inaccessible damage in a folded plate using sensor-actuator network

G. Kolappan Geetha, D. Roy Mahapatra, S. Gopalakrishnan

Proceedings Volume 8695, 86951J (2013) https://doi.org/10.1117/12.2010519

KEYWORDS: Sensors, Sensor networks, Diagnostics, Structural health monitoring, Wave propagation, Inspection, Wave plates, Actuators, Ultrasonics, Waveguides

Read Abstract +

Proceedings Article | 16 April 2013 Paper

Electromagnetic characteristics of Polyaniline/SWCNT composites

Brahmanandam Javvaji, D. Roy Mahapatra, S. Raha

Proceedings Volume 8691, 86910Z (2013) https://doi.org/10.1117/12.2010516

KEYWORDS: Composites, Polymers, Plasmons, Absorption, Electromagnetism, Electrons, Chemical species, Solar cells, Carbon nanotubes, Carbon

Read Abstract +

Proceedings Article | 12 April 2013 Paper

pH induced switching in hydrogel coated fiber Bragg grating sensor

B. N. Shivananju, Manish Priydarshi, D. Roy Mahapatra, G. M. Hegde, S. Asokan

Proceedings Volume 8598, 85980O (2013) https://doi.org/10.1117/12.2009620

KEYWORDS: Fiber Bragg gratings, Sensors, Ions, Sodium, Switching, Calcium, Polymers, Refractive index, Coating, Diffusion

Read Abstract +

Proceedings Article | 11 April 2013 Paper

Large-area piezoceramic coating with IDT electrodes for ultrasonic sensing applications

Vivek Rathod, D. Roy Mahapatra, A. Antony Jeyaseelan, Soma Dutta

Proceedings Volume 8693, 86930L (2013) https://doi.org/10.1117/12.2011495

KEYWORDS: Electrodes, Coating, Ferroelectric materials, Semiconducting wafers, Ultrasonics, Sensors, Waveguides, Transducers, Structural health monitoring, Data acquisition

Read Abstract +

Proceedings Article | 5 March 2013 Paper

Charge injection through nanocomposite electrode in microfluidic channel for electrical lysis of biological cells

Madhusmita Mishra, Anil Krishna, Aman Chandra, B. M. Shenoy, G. Hegde, D. Roy Mahapatra

Proceedings Volume 8570, 85700R (2013) https://doi.org/10.1117/12.2012295

KEYWORDS: Electrodes, Nanocomposites, Proteins, Nanomaterials, Ions, Microfluidics, Zinc oxide, Molecules, Imaging spectroscopy, Polymers

Read Abstract +

Proceedings Article | 20 April 2012 Paper

Ultrasonic guided wave characterization and damage detection in foam-core sandwich panel using PWAS and LDV

Nibir Chakraborty, D. Roy Mahapatra, Gopalakrishnan Srinivasan

Proceedings Volume 8348, 83481O (2012) https://doi.org/10.1117/12.917598

KEYWORDS: Sensors, Foam, Waveguides, Actuators, Wave propagation, Laser Doppler velocimetry, Dispersion, Phased arrays, Interfaces, Ultrasonics

Read Abstract +

Proceedings Article | 20 April 2012 Paper

Guided-wave-based damage detection in a composite T-joint using 3D scanning laser Doppler vibrometer

Ganesh Kolappan Geetha, D. Roy Mahapatra, Gopalakrishnan Srinivasan

Proceedings Volume 8348, 83481Q (2012) https://doi.org/10.1117/12.917600

KEYWORDS: Composites, Laser Doppler velocimetry, Wave propagation, Inspection, Doppler effect, Waveguides, Damage detection, Semiconducting wafers, Structural health monitoring, Transducers

Read Abstract +

Proceedings Article | 31 March 2012 Paper

Carbon nanotube based composite fibers for strain sensing, signal processing, and computing

Harsh Vardhan, D. Roy Mahapatra

Proceedings Volume 8344, 834409 (2012) https://doi.org/10.1117/12.918102

KEYWORDS: Magnetism, Resistance, Signal processing, Sensors, Carbon nanotubes, Iron, Logic, Composites, Nanoparticles, Glasses

Read Abstract +

Proceedings Article | 31 March 2012 Paper

Electromagnetic characteristics of carbon nanotubes with strain

Brahmanandam Javvaji, S. Raha, D. Roy Mahapatra

Proceedings Volume 8344, 83440Z (2012) https://doi.org/10.1117/12.918103

KEYWORDS: Absorption, Dielectrics, Electromagnetism, Carbon nanotubes, Dielectric polarization, Electromagnetic radiation, Antennas, Polarizability, Plasmons, Plasma

Read Abstract +

Proceedings Article | 28 March 2012 Paper

Ultrasonic performance of the PVDF thin film sensors under thermal fatigue

Vivek Rathod, D. Roy Mahapatra, Anjana Jain, A. Gayathri

Proceedings Volume 8342, 83420E (2012) https://doi.org/10.1117/12.917603

KEYWORDS: Ferroelectric polymers, Ferroelectric materials, Semiconducting wafers, Sensors, Thin films, Ultrasonics, Data acquisition, Structural health monitoring, Temperature metrology, Thermal effects

Read Abstract +

Proceedings Article | 28 April 2011 Paper

Self-actuating and self-diagnosing plastically deforming piezo-composite flapping wing MAV

Ajay Harish, Dineshkumar Harursampath, D. Roy Mahapatra

Proceedings Volume 7978, 797813 (2011) https://doi.org/10.1117/12.880218

KEYWORDS: Composites, Micro unmanned aerial vehicles, Actuators, 3D modeling, Structural health monitoring, Kinematics, Fused deposition modeling, Bismuth, Aerospace engineering, Matrices

Read Abstract +

Proceedings Article | 18 April 2011 Paper

Lamb wave based detection of damage in a stiffener bonded to a plate

G. Kolappan Geetha, V. Rathod, D. Roy Mahapatra, S. Gopalakrishnan

Proceedings Volume 7984, 79842X (2011) https://doi.org/10.1117/12.881097

KEYWORDS: Sensors, Wavelets, Wave plates, Sensor networks, Structural health monitoring, Wave propagation, Actuators, Inspection, Ultrasonics, Skin

Read Abstract +

Proceedings Article | 15 April 2011 Paper

Linear phased array of piezoelectric transducers for delamination monitoring in a composite laminate using Lamb waves

Vivek Rathod, Nibir Chakraborty, D. Roy Mahapatra

Proceedings Volume 7982, 798217 (2011) https://doi.org/10.1117/12.880748

KEYWORDS: Phased arrays, Composites, Wave propagation, Sensors, Phase velocity, Actuators, Dispersion, Transducers, Wave plates, Receivers

Read Abstract +

Proceedings Article | 14 April 2011 Paper

Magnetoresistance of flexible CNT-Fe composite thin films in a dynamic electric field

Rejin Isaac, D. Roy Mahapatra

Proceedings Volume 7980, 79800B (2011) https://doi.org/10.1117/12.881089

KEYWORDS: Polymers, Iron, Magnetism, Resistance, Nanoparticles, Carbon, Thin films, Composites, Carbon nanotubes, Epoxies

Read Abstract +

Proceedings Article | 29 March 2011 Paper

Electromechanical fatigue in IPMC under dynamic energy harvesting conditions

Arvind Krishnaswamy, D. Roy Mahapatra

Proceedings Volume 7976, 79762Q (2011) https://doi.org/10.1117/12.881092

KEYWORDS: Polymers, Energy harvesting, Diffusion, Ions, Composites, Metals, Electrodes, Actuators, Electroactive polymers, Sensors

Read Abstract +

Proceedings Article | 1 April 2010 Paper

Detailed studies on the formation of piezoelectric β-phase of PVDF at different hot-stretching conditions

Anjana Jain, Jayanth Kumar S., D. Roy Mahapatra, H. H Kumar

Proceedings Volume 7647, 76472C (2010) https://doi.org/10.1117/12.847351

KEYWORDS: Ferroelectric polymers, Crystals, Sensors, X-ray diffraction, Raman spectroscopy, Scanning electron microscopy, Infrared radiation, Reflection, Aerospace engineering, Ferroelectric materials

Read Abstract +

Proceedings Article | 20 August 2009 Paper

Stabilizing a pulsed field emission from an array of carbon nanotubes

D. Roy Mahapatra, S. Anand, N. Sinha, R. V. Melnik

Proceedings Volume 7399, 73990M (2009) https://doi.org/10.1117/12.826166

KEYWORDS: Electrons, Carbon nanotubes, Electrodynamics, Carbon, Chemical species, Thin films, X-rays, Diodes, Electromechanical design, Thin film devices

Read Abstract +

Proceedings Article | 8 April 2009 Paper

Lamb wave based identification and parameter estimation of corrosion in metallic plate structure using a circular PWAS array

V. Rathod, D. Roy Mahapatra, S. Gopalakrishnan

Proceedings Volume 7295, 72951C (2009) https://doi.org/10.1117/12.816558

KEYWORDS: Sensors, Wavelets, Corrosion, Wave plates, Actuators, Time-frequency analysis, Sensor networks, Algorithm development, Metals, Semiconducting wafers

Read Abstract +

Proceedings Article | 6 April 2009 Paper

Coupled electro-mechanical response of an electroactive polymer cantilever structure and its application in energy harvesting

B. Ahish, S. Anand, P. Bharath, K. Arvind, N. Chakraborty, D. Roy Mahapatra

Proceedings Volume 7287, 728728 (2009) https://doi.org/10.1117/12.816016

KEYWORDS: Polymers, Energy harvesting, Motion models, Ions, Electroactive polymers, Composites, Systems modeling, Electrodes, Molecules, Sensors

Read Abstract +

Proceedings Article | 3 April 2009 Paper

Viscoelastic phenomenology based structure assignment for closed-loop vibration control of a beam with sensors and actuators

G. K. Vadiraja, D. Roy Mahapatra

Proceedings Volume 7286, 72860G (2009) https://doi.org/10.1117/12.816013

KEYWORDS: Sensors, Actuators, Control systems, Control systems design, Chemical elements, Vibration control, Matrices, Feedback control, Mathematical modeling, Fourier transforms

Read Abstract +

Proceedings Article | 1 April 2009 Paper

Electrical and magneto-resistance of Co/CNT/Epoxy thin film for strain and magnetic field sensing

Sandeep Anand, Rejin Isaac, D. Roy Mahapatra

Proceedings Volume 7291, 72910O (2009) https://doi.org/10.1117/12.816021

KEYWORDS: Resistance, Polymers, Magnetism, Magnetic sensors, Cobalt, Composites, Sensors, Chemical species, Carbon, Nanoparticles

Read Abstract +

Proceedings Article | 1 April 2009 Paper

Effects of phase inhomogeneity and boundary conditions on the dynamic response of SMA wire actuators

Kannan Dasharathi, D. Roy Mahapatra

Proceedings Volume 7289, 72890Q (2009) https://doi.org/10.1117/12.815999

KEYWORDS: Shape memory alloys, Chromium, Actuators, Finite element methods, Mathematical modeling, Chemical elements, Heat flux, Temperature metrology, Matrices, 3D modeling

Read Abstract +

Proceedings Article | 22 April 2008 Paper

Modeling and analysis of a tunable piezoelectric structure for transverse shear wave generation

Shiva Chenagani, D. Roy Mahapatra

Proceedings Volume 6932, 69321S (2008) https://doi.org/10.1117/12.776282

KEYWORDS: Ferroelectric materials, Crystals, Wave plates, Resonators, Smart structures, Aerospace engineering, Adhesives, Lead, Zirconium, Energy transfer

Read Abstract +

Proceedings Article | 18 April 2008 Paper

Dynamics and control of buckling type devices using SMA wire integrated beam

Vikash Jha, Kannan Dasharathi, D. Roy Mahapatra

Proceedings Volume 6928, 69280U (2008) https://doi.org/10.1117/12.776210

KEYWORDS: Shape memory alloys, Beam controllers, Control systems, Beam shaping, Smart structures, System integration, Integration, Shape analysis, Dynamical systems, Mathematical modeling

Read Abstract +

Proceedings Article | 4 April 2008 Paper

Wave dispersion in a cellular composite with modulated microstructure

Vijay Kumar, D. Roy Mahapatra

Proceedings Volume 6929, 69290Z (2008) https://doi.org/10.1117/12.776323

KEYWORDS: Modulation, Composites, Homogenization, Mechanics, Laser scattering, Scattering, Phase shift keying

Read Abstract +

Proceedings Article | 18 April 2007 Paper

Adaptive control of vibration transmission in a strut system

C-M. Liao, D. Roy Mahapatra, B. Balachandran

Proceedings Volume 6523, 65230Q (2007) https://doi.org/10.1117/12.715972

KEYWORDS: Actuators, Digital filtering, Filtering (signal processing), Adaptive control, Mechanics, Control systems, Optical filters, Electronic filtering, Computing systems, Aluminum

Read Abstract +

Proceedings Article | 20 December 2006 Paper

Analysis of low-dimensional semiconductor nanostructures with a self-consistent iterative scheme

D. Roy Mahapatra, Roderick V. Melnik

Proceedings Volume 6415, 64150A (2006) https://doi.org/10.1117/12.720660

KEYWORDS: Nanostructures, Semiconductors, Heterojunctions, Aluminum nitride, Polarization, Optoelectronics, Gallium nitride, Chemical elements, Mathematical modeling

Read Abstract +

Proceedings Article | 6 April 2006 Paper

Modeling the essential atomistic influence in the phase transformation dynamics of shape memory materials

D. Roy Mahapatra, R. Melnik

Proceedings Volume 6170, 61700Y (2006) https://doi.org/10.1117/12.658883

KEYWORDS: Thermodynamics, Shape memory alloys, Crystals, Numerical simulations, Thin films, Interfaces, Mathematical modeling, Computer simulations, Chemical species, Electroluminescence

Read Abstract +

Proceedings Article | 27 March 2006 Paper

Active control of dispersive waves: coupling finite-dimensional control system using isospectra

D. Roy Mahapatra, B. Balachandran

Proceedings Volume 6166, 61661L (2006) https://doi.org/10.1117/12.658892

KEYWORDS: Control systems, Control systems design, Wave propagation, Feedback control, Signal attenuation, Sensors, Actuators, Waveguides, Systems modeling, Composites

Read Abstract +

Proceedings Article | 22 March 2006 Paper

Mesoscopic dynamics of piezoelectric copolymer thin films

D. Roy Mahapatra, R. V. N. Melnik

Proceedings Volume 6168, 61682D (2006) https://doi.org/10.1117/12.658910

KEYWORDS: Polymers, Thin films, Composites, Ferroelectric polymers, Electrostriction, Polymer thin films, Dielectric polarization, 3D modeling, Magnetism, Polarization

Read Abstract +

Proceedings Article | 14 October 2003 Paper

Identification of delaminations in composite: structural health monitoring software based on spectral estimation and hierarchical genetic algorithm

A. Nag, D. Roy Mahapatra, S. Gopalakrishnan

Proceedings Volume 5062, (2003) https://doi.org/10.1117/12.514901

KEYWORDS: Composites, Chemical elements, Structural health monitoring, Genetic algorithms, Waveguides, Signal processing, Genetics, Spectral models, Binary data, Matrices

Read Abstract +

Proceedings Article | 6 April 2001 Paper

Optimal spectral control of multiple waves in smart composite beams with distributed sensor-actuator configuration

S. Gopalakrishnan, Debiprosad Mahapatra

Proceedings Volume 4234, (2001) https://doi.org/10.1117/12.424388

KEYWORDS: Sensors, Actuators, Composites, Chemical elements, Spectral models, Feedback control, Wave propagation, Ferroelectric materials, Mathematical modeling, Structured optical fibers

Read Abstract +