Book Chapters
“Sensors for smart education”. R.D.S. Yadava. In: Digital Twins in the Smart Classroom, (Ed) T. A. Nguyen. Elsevier, 2026. Chapter 4. Pages 37-56. https://doi.org/10.1016/B978-0-443-41632-3.00010-2
“Perspectives for electronic nose technology in green analytical chemistry”. T. S. Singh, P. Singh, R.D.S. Yadava. In: Green Polymer Chemistry and Composites: Pollution Prevention and Waste Reduction, (Eds) N.K. Rawat, I. Stoica, A.K. Haghi. Apple Academic Press, 2021. Chapter 10, Pages 167-201. https://doi.org/10.1201/9781003083917
“Nanosensors for health care”. P. Singh, R.D.S. Yadava. In: Nanosensors for Smart Cities, (Ed) B. Han, V. K. Tomer, T.A. Nguyen, A. Farmani, P. K. Singh. Elsevier, 2020. Chapter 26, Pages 433-450. https://doi.org/10.1016/B978-0-12-819870-4.00025-6
“Phase dynamics, synchronization and sensing by SAW delay line coupling between nonlinear SAW oscillators”. R.D.S. Yadava. In: Sensors and Biosensors, MEMS Technologies, and its Applications, Advances in Sensors (Vol. 2), (Ed) S. Y. Yurish. IFSA Publishing, Barcelona, 2014. Chapter 2. Pages 67-138.
“Modeling, simulation and information processing for development of polymeric electronic nose system”. R.D.S. Yadava. In: Chemical Sensors – Simulation and Modeling (Vol. 3: Solid-State Devices), (Ed) G. Korotcenkov. Momentum Press, New York, 2012. Chapter 10. Pages 411-502.
Condensed Matter Physics: Disordered Systems, Fractals & 1/f Noise
Metal-Insulator Percolation & Transport
Electrostatic charging of a fractal metallic cluster and variable range hopping conductivity in thin discontinuous metal films. R.D.S. Yadava. J. Physics: Condensed Matter, vol. 1, 1989, 7245-7249. https://doi.org/10.1088/0953-8984/1/39/032
A finite fractal cluster theory of 1/f noise in percolation systems near metal-insulator transition. R.D.S. Yadava. Z. Physik B: Condensed Matter, vol. 76, 1989, 365-374. https://doi.org/10.1007/BF01321915
Scaling characteristic of ac conductivity and dielectric function in fractal regime of the metal-insulator transition. R.D.S. Yadava. Z. Physik B: Condensed Matter, vol. 86, 1992, 93-99. https://doi.org/10.1007/BF01323553
MOS Physics & Low-Frequency Noise
Searching a fractal basis for low frequency 1/f fluctuations ̶ MOSFET structure in case. R.D.S. Yadava. Jpn. J. Applied Physics, vol 28, no. 5, 1989, 929-940. https://doi.org/10.1143/JJAP.28.929
Fractal nature of defect clustering in gate oxides of MOS devices. R.D.S. Yadava, R.K. Bhan. J. Electrochemical Society, vol. 136, no. 3, 1989, 889-890. https://doi.org/10.1149/1.2096767
Scaling size distribution of oxide defects, trema-fractal oxide layer and breakdown statistics of metal-oxide-semiconductor devices. R.D.S. Yadava. Applied Physics Letters, vol. 54, no. 9, 1989, 834-836. https://doi.org/10.1063/1.101414
Analytic approach to the AC conductance method for rapid characterization of interface states in MOS structures. R.D.S. Yadava. Solid State Electronics, vol. 33, no. 1, 1990, 127-137. https://doi.org/10.1016/0038-1101(90)90018-A
Sensor Physics: SAW, MEMS / NEMS & Electronic Noses
MEMS / NEMS Sensors
Effect of surface stress on resonance frequency of microcantilever sensors. Priyanka Singh, R.D.S. Yadava. IEEE Sensors J., vol. 18, no. 18, 2018, 7529-7536. https://doi.org/10.1109/JSEN.2018.2861228
Effect of viscous axial loading on vibrating microcantilever sensors. Priyanka Singh, R.D.S. Yadava. J. Physics D: Applied Physics, vol. 52, no. 34, 2019, 345301 (9 pp). https://doi.org/10.1088/1361-6463/ab1e2f
Stochastic resonance induced performance enhancement of MEMS cantilever biosensors. Priyanka Singh, R.D.S. Yadava. J. Physics D: Applied Physics, vol. 53 (46), 2020, 465401 (19pp). https://doi.org/10.1088/1361-6463/ab98c4
Stochastic resonance in micro/nano cantilever sensors. Priyanka Singh, R.D.S. Yadava. In: Proc. 2nd International Conference on Condensed Matter and Applied Physics (AIP ICC 2017). AIP Conf. Proc. volume 1953, issue 1, 2018, 140103. AIP. https://doi.org/10.1063/1.5033278
Stochastic resonance in MEMS capacitive sensors. V.K. Verma, R.D.S. Yadava. Sensors and Actuators B: Chemical, vol. 235, 2016, 583-602. https://doi.org/10.1016/j.snb.2016.05.110
MEMS sensor array-based electronic nose for breath analysis: A simulation study. A. Gupta, T.S. Singh, R.D.S. Yadava. J. Breath Research, vol. 13, no. 1, 2019, 016003 (17 pp). https://doi.org/10.1088/1752-7163/aad5f1
Detection and quantification of fish spoilage marker using polymer-coated micro-electro-mechanical systems sensor array-based electronic nose—A computational study. A. Gupta, T.S. Singh, A.K. Sharma, R.D.S. Yadava, J. Food Science and Technology, 26 July 2025 (12 pp). https://doi.org/10.1007/s13197-025-06395-9
Surface Acoustic Wave (SAW) Sensors
Solvation, transduction, and independent component analysis for pattern recognition in SAW electronic nose. R.D.S. Yadava, Ruchi Chaudhary. Sensors and Actuators B, vol. 113, 2006, 1-21. https://doi.org/10.1016/j.snb.2005.02.031
A diffusion-limited sorption-desorption noise model for polymer coated SAW chemical sensors. R.D.S. Yadava, V. K. Verma, Sensors and Actuators B: Chemical, vol. 195, 2014, 590-602. https://doi.org/10.1016/j.snb.2014.01.067
Effect of film thickness and viscoelasticity on separability of vapor classes by wavelet and PCA analyses of polymer coated SAW sensor transients. Prashant Singh, R.D.S. Yadava. Measurement Science & Technology, vol. 22, 2011, 025202 (15pp). https://doi.org/10.1088/0957-0233/22/2/025202
Enhancing mass sensitivity of SAW delay line sensor by chirping transducers. R.D.S. Yadava. Sensors and Actuators B, vol. 114, 2006, 127-131. https://doi.org/10.1016/j.snb.2005.04.024
Modeling the electrical response of polymer-coated SAW resonators using equivalent circuit based on COM theory. R. Kshetrimayum, R.D.S. Yadava, R.P. Tandon. Ultrasonics, vol. 51, 2011, 547-553. https://doi.org/10.1016/j.ultras.2010.12.006
Mass sensitivity analysis and designing of surface acoustic wave resonators for chemical sensors. R. Kshetrimayum, R.D.S. Yadava, R.P. Tandon. Measurement Science & Technology, vol. 20, 2009, 055201 (10pp). https://doi.org/10.1088/0957-0233/20/5/055201
Multifrequency characterization of viscoelastic polymers and vapor sensing based on SAW oscillators. R.D.S. Yadava, R. Kshetrimayum, Mamta Khaneja. Ultrasonics, vol. 49, 2009, 638-645. https://doi.org/10.1016/j.ultras.2009.03.006
Synchronization and stability of surface acoustic wave (SAW) coupled phase oscillators and sensing applications. S. S. Jha, R.D.S. Yadava. J. Applied Nonlinear Dynamics, vol. 3, no. 1, 2014, 51-73. https://www.lhscientificpublishing.com/journals/articles/DOI-10.5890-JAND.2014.03.005.aspx
Synchronization based SAW sensor using delay line coupled dual oscillator phase dynamics. S.S. Jha, R.D.S. Yadava. Sensors & Transducers J., vol. 141, no. 6, 2012, 71-91. https://sensorsportal.com/HTML/ST_JOURNAL/PDF_Files/P_995.pdf
A comparative analysis of one-port Colpitts and two-port Pierce SAW oscillators for DMMP vapor sensing. A.T. Nimal, M. Singh, U. Mittal, R.D.S. Yadava. Sensors and Actuators B, vol. 114, 2006, 316-325. https://doi.org/10.1016/j.snb.2005.05.021
Adsorption studies of carbowax coated surface acoustic wave (SAW) sensor for 2,4-dinitrotoluene (DNT) vapor detection. G.K. Kannan, A.T. Nimal, U. Mittal, R.D.S. Yadava, J.C. Kapoor. Sensors and Actuators B, vol. 101, 2004, 328-334. https://doi.org/10.1016/j.snb.2004.04.003
Acoustic wave immunosensing of Escherichia Coli in water. D. Deobagkar, V. Limaye, S. Sinha, R.D.S. Yadava, Sensors and Actuators B: Chemical 104, 2005, 85-89.
Sensing Applications & Electronic Noses
Adsorption studies of carbowax coated surface acoustic wave (SAW) sensor for 2,4-dinitrotoluene (DNT) vapor detection. G.K. Kannan, A.T. Nimal, U. Mittal, R.D.S. Yadava, J.C. Kapoor. Sensors and Actuators B, vol. 101, 2004, 328-334. https://doi.org/10.1016/j.snb.2004.04.003
Detection of landmine signature using SAW-based polymer-coated chemical sensor. G.K. Kannan, R. Bhalla, J.C. Kapoor, A.T. Nimal, U. Mittal, R.D.S. Yadava. Defence Science J., vol. 54, no. 3, 2004, 309-315. https://doi.org/10.14429/dsj.54.2044
A comparative analysis of one-port Colpitts and two-port Pierce SAW oscillators for DMMP vapor sensing. A.T. Nimal, M. Singh, U. Mittal, R.D.S. Yadava. Sensors and Actuators B, vol. 114, 2006, 316-325. https://doi.org/10.1016/j.snb.2005.05.021
Acoustic wave immunosensing of Escherichia Coli in water. D. Deobagkar, V. Limaye, S. Sinha, R.D.S. Yadava, Sensors and Actuators B: Chemical 104, 2005, 85-89.
Polymer selection for SAW sensor array based electronic noses by fuzzy c-means clustering of partition coefficients: Model studies on detection of freshness and spoilage of milk and fish. Prabha Verma, R.D.S. Yadava, Sensors and Actuators B: Chemical, vol. 209, 2015, 751-769. https://doi.org/10.1016/j.snb.2014.11.149
Designing optimal model SAW sensor array electronic nose for body odor discrimination. S.K. Jha, R.D.S. Yadava. Sensor Letters, vol. 9, no. 5, 2011, pp. 1612-1622. https://doi.org/10.1166/SL.2011.1740
MEMS sensor array-based electronic nose for breath analysis: A simulation study. A. Gupta, T.S. Singh, R.D.S. Yadava. J. Breath Research, vol. 13, no. 1, 2019, 016003 (17 pp). https://doi.org/10.1088/1752-7163/aad5f1
Detection and quantification of fish spoilage marker using polymer-coated micro-electro-mechanical systems sensor array-based electronic nose—A computational study. A. Gupta, T.S. Singh, A.K. Sharma, R.D.S. Yadava, J. Food Science and Technology, 26 July 2025 (12 pp). https://doi.org/10.1007/s13197-025-06395-9
Quality control of herbal medicines by using spectroscopic techniques and multivariate statistical analysis, pharmaceutical biology. S.K. Singh, S.K. Jha, A. Chaudhary, R.D.S. Yadava, S.B. Rai. Pharmaceutical Biology, vol. 48, no. 2, 2010, 134-141. https://doi.org/10.3109/13880200903059388
Oxidative stress detection by MEMS cantilever sensor array based electronic nose. A. Gupta, T.S. Singh, Priyanka Singh, R.D.S. Yadava. In: Proc. 2nd International Conference on Condensed Matter and Applied Physics (AIP ICC 2017). AIP Conf. Proc. 1953, Issue 1, 140131. https://doi.org/10.1063/1.5033306
Electronic Nose Data Analytics & Machine Learning
Solvation, transduction, and independent component analysis for pattern recognition in SAW electronic nose. R.D.S. Yadava, Ruchi Chaudhary. Sensors and Actuators B, vol. 113, 2006, 1-21. https://doi.org/10.1016/j.snb.2005.02.031
Denoising by singular value decomposition and electronic nose data processing. S. K. Jha, R.D.S. Yadava. IEEE Sensors J., vol. 11, no.1, 2011, 35-43. https://doi.org/10.1109/JSEN.2010.2049351
Preprocessing of SAW sensor array data and pattern recognition. S.K. Jha, R.D.S. Yadava, IEEE Sensors J. vol. 9, no. 10, 2009, 1202-1208. https://doi.org/10.1109/JSEN.2009.2029452
Boosting principal component analysis by genetic algorithm. Divya Somvanshi, R.D.S. Yadava. Defence Science J., vol. 60, no. 4, 2010, 392-398. https://doi.org/10.14429/dsj.60.495
Feature extraction by wavelet decomposition of surface acoustic wave sensor array transients. Prashant Singh, R.D.S. Yadava. Defence Science J., vol. 60, no. 4, 2010, 377-386. https://doi.org/10.14429/dsj.60.494
Enhancing chemical identification efficiency by SAW sensor transients through a data enrichment and information fusion strategy: A simulation study. Prashant Singh, R.D.S. Yadava. Measurement Science & Technology, vol. 24, 2013, 0559109 (13pp). https://doi.org/10.1088/0957-0233/24/5/055109
Effect of film thickness and viscoelasticity on separability of vapor classes by wavelet and PCA analyses of polymer coated SAW sensor transients. Prashant Singh, R.D.S. Yadava. Measurement Science & Technology, vol. 22, 2011, 025202 (15pp). https://doi.org/10.1088/0957-0233/22/2/025202
Polymer selection for SAW sensor array based electronic noses by fuzzy c-means clustering of partition coefficients: Model studies on detection of freshness and spoilage of milk and fish. P. Verma, R.D.S. Yadava, Sensors and Actuators B: Chemical, vol. 209, 2015, 751-769. https://doi.org/10.1016/j.snb.2014.11.149
A data mining procedure for polymer selection for making surface acoustic wave sensor array. P. Verma, R.D.S. Yadava. Sensor Letters, vol. 11, no. 10, 2013,1903-1918. https://doi.org/10.1166/sl.2013.3047
Data mining approach to polymer selection for making SAW sensor array-based electronic nose. S. K. Jha, R.D.S. Yadava. Sensors & Transducers J., vol. 147, no. 12, 2012, 108-128. https://www.sensorsportal.com/HTML/DIGEST/december_2012/P_1102.pdf
Enhancing sensor array intelligence by Bayesian fusion of information multiplicity generated by multiple processors. Prabha Verma, R.D.S. Yadava. Sensors & Transducers, vol. 182, issue 11, 2014, pp 42-48. https://sensorsportal.com/HTML/ST_JOURNAL/PDF_Files/P_2497.pdf
A fusion approach to feature extraction by wavelet decomposition and principal component analysis in transient signal processing of SAW odor sensor array. P. Singh, R.D.S. Yadava. Sensors & Transducers J., vol. 126, no. 3, 2011, 64-73. https://www.sensorsportal.com/HTML/DIGEST/march_2011/P_777.pdf
Performance assessment of PCA, MF and SVD methods for denoising in chemical sensor array-based electronic nose system. S. K. Jha, R.D.S. Yadava. Sensors & Transducers J., vol. 129, no. 6, 2011, 57-68. https://www.sensorsportal.com/HTML/ST_JOURNAL/PDF_Files/P_811.pdf
On genetic algorithm and multiple preprocessors assisted feature boosting for electronic nose signal processing. P. Verma, D. Somvanshi, R.D.S. Yadava. Int. J. Computational Intelligence Research, vol. 7, no. 3, 2011, 271-294. https://www.ripublication.com/ijcirv4/ijcirv7n3_5.pdf
Information fusion based on multiplicity of data preprocessing boosts the AdaBoost classifier. D. Somvanshi, R.D.S. Yadava. Int. J. Computational Intelligence Research vol. 7, no. 2, 2011, 169-180. https://www.ripublication.com/ijcirv4/ijcirv7n2_05.pdf
Power scaling of chemo-resistive sensor array data for odor classification. S.K. Jha, R.D.S. Yadava. J. Pattern Recognition Research, vol. 1, 2011, 65-74. https://doi.org/10.13176/11.247
Development of surface acoustic wave electronic nose using pattern recognition system. S.K. Jha, R.D.S. Yadava, Defence Science J., vol. 60, no. 4, 2010, 364-376. https://doi.org/10.14429/dsj.60.493
Application of fuzzy clustering for selection of coating materials for MEMS sensor array. A. Gupta, T.S. Singh, R.D.S. Yadava. In: Proc. International Conference on Advanced Computational and Communication Paradigms (Springer ICACCP 2017, Volume 1), Lecture Notes in Electrical Engineering (LNEE, volume 475), pp 454–464. Springer. https://doi.org/10.1007/978-981-10-8240-5_51
Application of PSO clustering for selection of chemical interface materials for sensor array electronic nose. T.S. Singh, R.D.S. Yadava. In: Proc. Soft Computing: Theories and Applications (Springer SoCTA 2016, Volume 1). Advances in Intelligent Systems and Computing (AISC, volume 583), pp 449–456. Springer. https://doi.org/10.1007/978-981-10-5687-1_40
Fuzzy c-means clustering based outlier detection for SAW electronic nose. P. Verma, P. Singh, R.D.S. Yadava. In: Proc. 2nd International Conference for Convergence in Technology (IEEE I2CT 2017), pp 513-519. IEEE. https://doi.org/10.1109/I2CT.2017.8226182
A fuzzy-GRNN classifier for pattern recognition. P. Verma, P. Singh, R.D.S. Yadava. In: Proc. 2nd International Conference on Signal Processing and Integrated Networks (IEEE SPIN 2015), pp 659-661. IEEE. https://doi.org/10.1109/SPIN.2015.7095166
Fuzzy c-means clustering based uncertainty measure for sample weighting boosts pattern classification efficiency. P. Verma, R.D.S. Yadava. In: Proc. 2nd National Conference on Computational Intelligence and Signal Processing (IEEE CISP 2012), pp 31-35. IEEE. https://doi.org/10.1109/NCCISP.2012.6189690
Quantitative recognition of volatile organics by fuzzy inference system based on discrete wavelet transform of SAW sensor transients. P. Singh, V. K. Verma, P. Verma, R.D.S. Yadava. In: Proc. International Conference on Signal Propagation and Computer Technology (IEEE ICSPCT 2014), pp 355-360. IEEE. https://doi.org/10.1109/ICSPCT.2014.6884891
Wavelet based fuzzy inference system for simultaneous identification and quantitation of volatile organic compounds using SAW sensor transients. P. Singh, R.D.S. Yadava. In: Proc. International Conference on Swarm, Evolutionary, and Memetic Computing (Springer SEMCCO 2011). Lecture Notes in Computer Science (LNCS, volume 7077), pp 319–327. Springer. https://doi.org/10.1007/978-3-642-27242-4_37
Genetic algorithm assisted enhancement in pattern recognition efficiency of radial basis neural network. P. Verma, R.D.S. Yadava. In: Proc. International Conference on Swarm, Evolutionary, and Memetic Computing (Springer SEMCCO 2011). Lecture Notes in Computer Science (LNCS, volumr7076), pp. 257-264. Springer. https://doi.org/10.1007/978-3-642-27172-4_32
Evidence generation for Dempster-Shafer fusion using feature extraction multiplicity and radial basis network. P. Verma, R.D.S. Yadava. In: Proc. International Conference on Emerging Trends in Electrical and Computer Technology (IEEE ICETECT 2011), pp 542-545. IEEE. https://doi.org/10.1109/ICETECT.2011.5760177
Detection of outliers in surface acoustic wave (SAW) chemical sensor array responses by one-class support vector machine. S.K. Jha, R.D.S. Yadava. In: Proc. Recent Advances in Intelligent Computational Systems (IEEE RAICS 2011), pp 896-901. IEEE. https://doi.org/10.1109/RAICS.2011.6069438
Nonlinear Dynamics, Synchronization, Chaos & Stochastic Resonance
A method for chaotic self-modulation in nonlinear Colpitts oscillator and its potential applications. S. Mishra, R.D.S. Yadava. Circuits, Systems, and Signal Processing, vol. 37, no. 2, 2018, 532-552. https://doi.org/10.1007/s00034-017-0579-5
Chaotic dynamics of Colpitts oscillator under control of MEMS feedback. S. Mishra, R.D.S. Yadava. J. Applied Nonlinear Dynamics, vol. 6, no. 3, 2017, 315-332. https://www.lhscientificpublishing.com/Journals/articles/DOI-10.5890-JAND.2017.09.001.aspx
Effects of nonlinear capacitance in feedback LC-tank on chaotic Colpitts oscillator. S. Mishra, A.K. Singh, R.D.S. Yadava. Physica Scripta, vol. 95, no. 5, 2020, 055203 (17 pp). https://doi.org/10.1088/1402-4896/ab6f95
Transient motion and chaotic dynamics in a pair of Van der Pol oscillators. A.K. Singh, R.D.S. Yadava. The European Physical Journal Plus, vol. 134, 2019, 421 (10 pp). https://doi.org/10.1140/epjp/i2019-12804-x
Synchronization and amplitude death in a pair of Van der Pol oscillators under conjugate coupling. A.K. Singh, R.D.S. Yadava. Physica Scripta, vol. 94, no. 7, 2019, 075201 (10 pp). https://doi.org/10.1088/1402-4896/ab0334
Quadrature synchronization of a pair of Van der Pol oscillators coupled by NEMS varactor: A theoretical analysis. A.K. Singh, R.D.S. Yadava. J. Applied Nonlinear Dynamics, vol. 8, no. 3, 2019, 475-491. https://www.lhscientificpublishing.com/Journals/articles/DOI-10.5890-JAND.2019.09.010.aspx
Stochastic resonance in MEMS capacitive sensors. V.K. Verma, R.D.S. Yadava. Sensors and Actuators B: Chemical, vol. 235, 2016, 583-602. https://doi.org/10.1016/j.snb.2016.05.110
Stochastic resonance induced performance enhancement of MEMS cantilever biosensors. Priyanka Singh, R.D.S. Yadava. J. Physics D: Applied Physics, vol. 53 (46), 2020, 465401 (19pp). https://doi.org/10.1088/1361-6463/ab98c4
Synchronization and stability of surface acoustic wave (SAW) coupled phase oscillators and sensing applications. S. S. Jha, R.D.S. Yadava. J. Applied Nonlinear Dynamics, vol. 3, no. 1, 2014, 51-73. https://www.lhscientificpublishing.com/journals/articles/DOI-10.5890-JAND.2014.03.005.aspx
Synchronization based SAW sensor using delay line coupled dual oscillator phase dynamics. S.S. Jha, R.D.S. Yadava. Sensors & Transducers J., vol. 141, no. 6, 2012, 71-91. https://sensorsportal.com/HTML/ST_JOURNAL/PDF_Files/P_995.pdf
Soft Matter & Active Microswimmers
Navigation control of flagellated magnetic microswimmer by parametric excitation. T.S. Singh, R.D.S. Yadava. J. Physics D: Applied Physics, vol. 53, no. 9, 2020, 095402 (11 pp). https://doi.org/10.1088/1361-6463/ab5982
Effect of inter-filament hydrodynamic interaction on swimming performance of a two-filament microswimmer. T.S. Singh, Priyanka Singh, R.D.S. Yadava. Soft Matter, vol.14, no. 37, 2018, 7748-7758. https://doi.org/10.1039/C8SM01120F
Effect of tapering on elastic filament microswimming under planar body actuation. T.S. Singh, R.D.S. Yadava. Biomedical Physics & Engineering Express, vol. 4, no. 1, 2018, 015019 (pp 10). https://doi.org/10.1088/2057-1976/aa96db
Semiconductor Materials & Devices: HgCdTe, CdTe & Infrared (IR) Sensors
Theory of Te Precipitation and related effects in CdTe Crystals. R.D.S. Yadava, R.K. Bagai, W. N. Borle. J. Electronic Materials, vol. 21, 1992, 1001-1015. https://doi.org/10.1007/BF02684210
Precipitation in CdTe crystals studied through Mie scattering. R.D.S Yadava, B.S. Sundersheshu, M. Anandan, R.K. Bagai, W.N. Borle. J. Electronic Materials, vol. 23, no. 12, 1994, 1349-1357. https://doi.org/10.1007/BF02649901
A study on contamination during bulk growth of CdTe crystals. R.K. Bagai, R.D.S. Yadava, B.S. Sundersheshu, G.L. Seth, M. Anandan, W.N. Borle. J. Crystal Growth, vol. 139, 1994, 259-265. https://doi.org/10.1016/0022-0248(94)90175-9
Hole scattering mechanisms in Hg1-xCdxTe. R.D.S. Yadava, A.K. Gupta, A.V.R. Warrier. J. Electronic Materials, vol. 23, 1994,1259-1278. https://doi.org/10.1007/BF02649902
Expression for intrinsic carrier concentration in Hg1-xCdxTe. R.D.S. Yadava. Solid State Communication, vol. 92, no. 4. 1994, 357-360. https://doi.org/10.1016/0038-1098(94)90717-X
Donor-like localization and activated conduction in compensated n-Hg0.8Cd0.2Te. R.D.S. Yadava, A.V.R Warrier. J. Electronic Materials, vol. 18, no. 4, 1989, 537-541. https://doi.org/10.1007/BF02657785
Grain growth mechanism during recrystallization of a tellurium-rich Hg1-xCdxTe cast. R.D.S. Yadava, S. Sinha, A.V.R. Warrier. J. Crystal Growth vol. 73, 1985, 343-349. https://doi.org/10.1016/0022-0248(85)90311-2
On the nature of alloying in HgTe-CdTe solid solutions at low temperature from electrode potential measurements. R.D.S. Yadava, A.V.R. Warrier. Solid State Communication, vol. 78, no. 5, 1991, 449-453. https://doi.org/10.1016/0038-1098(91)90702-W
Anodic polarization of HgTe, CdTe and Hg0.8Cd0.2Te ̶ Oxide formation kinetics and composition. R.D.S. Yadava, A.V.R. Warrier. J. Materials Science, vol. 26, 1991, 423-428. https://doi.org/10.1007/BF00576537
Radiation Effects, Ion Implantation & Laser-Matter Interaction
The bubble coalescence model of radiation blistering. R.D.S. Yadava. J. Nuclear Materials, vol. 98, 1981, 47-62. https://doi.org/10.1016/0022-3115(81)90386-X
Role of ion beam heating in blistering behavior of solids. R.D.S. Yadava. Radiation Effects 63, 1982, 231-236. https://doi.org/10.1080/00337578208222844
Effect of hydrogen bombardment on Ni40Fe6Co20Cr12Mo6B16 amorphous alloy. R.D.S. Yadava, N.I. Singh, A.K. Nigam. J. Nuclear Materials, vol. 102, 1981,109-116. https://doi.org/10.1016/0022-3115(81)90551-1
Proton irradiation effects in Fe40Ni40P14B6 metallic glass: Blistering. R.D.S. Yadava, N.I. Singh, A. K. Nigam, V. Singh. J. Nuclear Materials, vol. 92, 1980, 366-70. https://doi.org/10.1016/0022-3115(80)90127-0
High fluence hydrogen implantation in copper: Blistering and grain boundary movement. R.D.S. Yadava, N.I. Singh, A.K. Nigam. Radiation Effects, vol. 51, 1980, 233-240. https://doi.org/10.1080/00337578008210005
Experimental evidence for stress-induced blister formation. R. D. S. Yadava, N.I. Singh, A.K. Nigam. J. Nuclear Materials, vol. 92, 1980, 371-374. https://doi.org/10.1016/0022-3115(80)90128-2
Sponge-like blisters on copper by H+-ion implantation at ambient temperatures. R.D.S. Yadava, N.I. Singh, A.K. Nigam. J. Phys. D: Applied Physics, vol. 13, 1980, 2077-2080. https://doi.org/10.1088/0022-3727/13/11/017
Evaporation loss and diffusion of antimony in silicon under pulsed laser irradiation. A.K. Jain, V.N. Kulkarni, D.K. Sood, M. Sundararaman, R.D.S. Yadava. Nuclear Instruments and Methods, vol. 168, 1980, 473-477. https://doi.org/10.1016/B978-1-4832-2889-1.50077-3
Laser-induced surface alloy formation and diffusion of antimony in aluminium. A.K. Jain, V.N. Kulkarni, D.K. Sood, M. Sundararaman, R.D.S. Yadava. Nuclear Instruments and Methods, vol. 168, 1980, 275-282. https://doi.org/10.1016/B978-1-4832-2889-1.50046-3
IEEE, Springer, AIP Conference Proceedings
SAW / MEMS sensors, Pattern Recognition & Electronic Noses
Fuzzy c-means clustering based outlier detection for SAW electronic nose. P. Verma, P. Singh, R.D.S. Yadava. In: Proc. 2nd International Conference for Convergence in Technology (IEEE I2CT 2017), pp 513-519. IEEE. https://doi.org/10.1109/I2CT.2017.8226182
Application of fuzzy clustering for selection of coating materials for MEMS sensor array. A. Gupta, T.S. Singh, R.D.S. Yadava. In: Proc. International Conference on Advanced Computational and Communication Paradigms (Springer ICACCP 2017, Volume 1), Lecture Notes in Electrical Engineering (LNEE, volume 475), pp 454–464. Springer. https://doi.org/10.1007/978-981-10-8240-5_51
Enhancing sensitivity of MEMS chemical sensors by sorption-induced parametric modulation. Priyanka Singh, R.D.S. Yadava. In: Proc. International Conference on Innovations in Information, Embedded and Communication Systems (IEEE ICIIECS 2017), pp1-6. IEEE. https://doi.org/10.1109/ICIIECS.2017.8275883
Polymer-coated MEMS chemical sensor array for monitoring oxidative stress by breath analysis. A. Gupta, T.S. Singh, R.D.S. Yadava. In: Proc. International Conference on Innovations in Information, Embedded and Communication Systems (IEEE ICIIECS 2017), pp 1-8. IEEE. https://doi.org/10.1109/ICIIECS.2017.8275902
Oxidative stress detection by MEMS cantilever sensor array based electronic nose. A. Gupta, T.S. Singh, Priyanka Singh, R.D.S. Yadava. In: Proc. 2nd International Conference on Condensed Matter and Applied Physics (AIP ICC 2017). AIP Conf. Proc. 1953, Issue 1, 140131. https://doi.org/10.1063/1.5033306
Fuzzy subtractive clustering for polymer data mining for SAW sensor array based electronic nose. T.S. Singh, P. Verma, R.D.S Yadava. In: Proc. 6th International Conference on Soft Computing for Problem Solving (Springer SocProS 2016, Volume 1). Advances in Intelligent Systems and Computing (AISC, volume 546), pp 245–253. Springer. https://doi.org/10.1007/978-981-10-3322-3_23
Application of PSO clustering for selection of chemical interface materials for sensor array electronic nose. T.S. Singh, R.D.S. Yadava. In: Proc. Soft Computing: Theories and Applications (Springer SoCTA 2016, Volume 1). Advances in Intelligent Systems and Computing (AISC, volume 583), pp 449–456. Springer. https://doi.org/10.1007/978-981-10-5687-1_40
A fuzzy-GRNN classifier for pattern recognition. P. Verma, P. Singh, R.D.S. Yadava. In: Proc. 2nd International Conference on Signal Processing and Integrated Networks (IEEE SPIN 2015), pp 659-661. IEEE. https://doi.org/10.1109/SPIN.2015.7095166
Effect of counter rotation of oscillations on surface acoustic wave (SAW) coupled synchronized oscillators sensor. S.S. Jha, A. Prasad, R.D.S. Yadava. In: Proc. 2nd International Symposium on Physics and Technology of Sensors (IEEE ISPTS 2015), pp 30-34. IEEE. https://doi.org/10.1109/ISPTS.2015.7220076
Quantitative recognition of volatile organics by fuzzy inference system based on discrete wavelet transform of SAW sensor transients. P. Singh, V. K. Verma, P. Verma, R.D.S. Yadava. In: Proc. International Conference on Signal Propagation and Computer Technology (IEEE ICSPCT 2014), pp 355-360. IEEE. https://doi.org/10.1109/ICSPCT.2014.6884891
Application of fuzzy c-means clustering for polymer data mining for making SAW electronic nose. P. Verma, R.D.S. Yadava. In: Proc. International Conference on Frontiers in Intelligent Computing: Theory and Applications (Springer FICTA 2013). Advances in Intelligent Systems and Computing (AISC volume 247), pp 1–8. Springer. https://doi.org/10.1007/978-3-319-02931-3_1
Quantitative identification of volatile organics by SAW sensor transients ‒ Comparative performance analysis of fuzzy inference and partial-least-square-regression methods. P. Singh, R.D.S. Yadava. In: Proc. International Conference on Frontiers of Intelligent Computing: Theory and Applications (Springer FICTA 2013). Advances in Intelligent Systems and Computing (AISC vol. 247), pp. 9-16. Springer. https://doi.org/10.1007/978-3-319-02931-3_2
A new surface acoustic wave (SAW) delay line sensor. S.S. Jha, R.D.S. Yadava. In: Proc. International Conference on Recent Trends in Applied Physics and Materials Science (AIP RAM 2013). AIP Conf. Proc. 1536, 2013, 1254–1255. AIP. https://doi.org/10.1063/1.4810696
Fuzzy c-means clustering based uncertainty measure for sample weighting boosts pattern classification efficiency. P. Verma, R.D.S. Yadava. In: Proc. 2nd National Conference on Computational Intelligence and Signal Processing (IEEE CISP 2012), pp 31-35. IEEE. https://doi.org/10.1109/NCCISP.2012.6189690
Discrete wavelet transform and principal component analysis-based vapor discrimination by optimizing sense-and-purge cycle duration of SAW chemical sensor transients. P. Singh, R.D.S. Yadava. In: Proc.2nd National Conference on Computational Intelligence and Signal Processing (IEEE CISP 2012), pp 71-75. IEEE. https://doi.org/10.1109/NCCISP.2012.6189680
Wavelet based fuzzy inference system for simultaneous identification and quantitation of volatile organic compounds using SAW sensor transients. P. Singh, R.D.S. Yadava. In: Proc. International Conference on Swarm, Evolutionary, and Memetic Computing (Springer SEMCCO 2011). Lecture Notes in Computer Science (LNCS, volume 7077), pp 319–327. Springer. https://doi.org/10.1007/978-3-642-27242-4_37
Genetic algorithm assisted enhancement in pattern recognition efficiency of radial basis neural network. P. Verma, R.D.S. Yadava. In: Proc. International Conference on Swarm, Evolutionary, and Memetic Computing (Springer SEMCCO 2011). Lecture Notes in Computer Science (LNCS, volumr7076), pp. 257-264. Springer. https://doi.org/10.1007/978-3-642-27172-4_32
Transient feature extraction based on phase space fusion by partial-least-square regression analysis of sensor array signals. P. Singh, R.D.S. Yadava. In: Proc. International Conference on Emerging Trends in Electrical and Computer Technology (IEEE ICETECT 2011), pp 676-680. IEEE. https://doi.org/10.1109/ICETECT.2011.5760203
Detection of outliers in surface acoustic wave (SAW) chemical sensor array responses by one-class support vector machine. S.K. Jha, R.D.S. Yadava. In: Proc. Recent Advances in Intelligent Computational Systems (IEEE RAICS 2011), pp 896-901. IEEE. https://doi.org/10.1109/RAICS.2011.6069438
Statistical pattern analysis assisted selection of polymers for odor sensor array. S.K. Jha, R.D.S. Yadava. In: Proc. International Conference on Signal Processing, Communication, Computing and Networking Technologies (IEEE ICSCCN 2011), pp 575-580. IEEE. https://doi.org/10.1109/ICSCCN.2011.6024617
Evidence generation for Dempster-Shafer fusion using feature extraction multiplicity and radial basis network. P. Verma, R.D.S. Yadava. In: Proc. International Conference on Emerging Trends in Electrical and Computer Technology (IEEE ICETECT 2011), pp 542-545. IEEE. https://doi.org/10.1109/ICETECT.2011.5760177
Pattern recognition methods for SAW sensor array based electronic nose. S. K. Jha, R.D.S. Yadava. In: Proc. International Conference on Computational Intelligence and Computing Research (IEEE ICCIC 2010), pp 1-4. IEEE. https://doi.org/10.1109/ICCIC.2010.5705774
Nonlinear Dynamics
Enhancing spectral range and power of chaos in Colpitts oscillator by diode-varactor based capacitive nonlinearity in LC-tank. S. Mishra, A.K. Singh, R.D.S. Yadava. In: Proc. International Conference on Computing, Power and Communication Technologies (IEEE GUCON 2018), pp 132-137. IEEE. https://doi.org/10.1109/GUCON.2018.8674916
Stability of in-phase and out-of-phase synchronization modes in Van der Pol-Duffing oscillators coupled by fractional order derivative. A.K. Singh, R. D. S. Yadava. In: Proc. International Conference on Innovations in Information, Embedded and Communication Systems (IEEE ICIIECS 2017), pp 1-6. IEEE. https://doi.org/10.1109/ICIIECS.2017.8275900
Amplitude and phase fluctuations of Van der Pol oscillator under external random forcing. A.K. Singh, R.D.S. Yadava. In: Proc. International Conference on Condensed Matter and Applied Physics (AIP ICC 2017). AIP Conf. Proc. 1953, issue 1, 140116. https://doi.org/10.1063/1.5033291
Stochastic resonance in micro/nano cantilever sensors. Priyanka Singh, R.D.S. Yadava. In: Proc. 2nd International Conference on Condensed Matter and Applied Physics (AIP ICC 2017). AIP Conf. Proc. volume 1953, issue 1, 2018, 140103. AIP. https://doi.org/10.1063/1.5033278
Microswimming
Electrohydrodynamics of microfilament under distributed body actuation. T. S. Singh, R.D.S. Yadava. In: Proc. International Conference on Condensed Matter and Applied Physics (AIP ICC 2017). AIP Conf. Proc. volume 1953, issue 1, 2018, 140121. AIP. https://doi.org/10.1063/1.5033296
National Conference Proceedings
SAW / MEMS Chemical and Biological Sensors & Electronic Noses
Effect of flexural-torsional coupling on M/NEMS cantilever resonance frequency. Priyanka Singh, R.D.S. Yadava. In: Proc. National Conference on Applied Science in Engineering (ASHE 2016), 9–10 Sep 2016, Jaipur. (ISST) Journal of Applied Physics, vol. 8, no. 1, pp 30-36, 2017.
On development of electronic nose for fish spoilage detection. T.S. Singh, A. Gupta, R.D.S. Yadava. In: National Conference on Applied Science in Engineering (ASHE 2016), 9–10 Sep 2016, Jaipur. (ISST) Journal of Applied Physics, 8 (1), 2016, pp 9-13.
Wavelet and PLSR based simulation study of identification and quantification of organic vapours by SAW sensor transients. P. Singh, V. K. Verma, R.D.S. Yadava. In: Proc. National Conference on Contemporary Computing, Moradabad. 17 May 2013 (10 pp).
A novel SAW sensor configuration based on synchronization coupling of two oscillator system. S.S. Jha, R.D.S. Yadava. In: Proc. 16th National Seminar on Physics and Technology of Sensors (NSPTS-16, 2011), Lucknow. (Lucknow) Journal of Science 8(1), 2011, pp 78-82.
Application of fuzzy inference system based on fuzzy subtractive clustering for quantitative recognition in electronic nose systems. S.K. Jha, R.D.S. Yadava. In: Proc. 16th National Seminar on Physics and Technology of Sensors (NSPTS-16, 2011), Lucknow. (Lucknow) Journal of Science 8(1), 2011, pp 309-313.
Sensor array intelligence by Bayesian fusion of information generated by radial basis neural network in combination with multiple feature extraction methods. P. Verma, R.D.S. Yadava. In: Proc. 16th National Seminar on Physics and Technology of Sensors (NSPTS-16, 2011), Lucknow. (Lucknow) Journal of Science 8(1), 2011, pp 347-351.
Stochastic resonance in polymer coated SAW sensors induced by nonlinear viscoelastic effects. V.K. Verma, R.D.S. Yadava. In: Proc. 16th National Seminar on Physics and Technology of Sensors (NSPTS-16, 2011) , Lucknow. (Lucknow) Journal of Science 8(1), 2011, pp 352-359.
Viscoelastic effects in polymer coated SAW sensors – Boon or bane?. P. Singh, R.D.S. Yadava. In: Proc. 16th National Seminar on Physics and Technology of Sensors (NSPTS-16, 2011), Lucknow. (Lucknow) Journal of Science 8(1), 2011, pp 368-373.
Synchronization of two coupled nonlinear surface-acoustic-wave (SAW) oscillators. S.S. Jha, R.D.S. Yadava. In: Proc. 6th National Conference on Nonlinear Systems & Dynamics (NCNSD, 2011), 27 - 30 January 2011, Tiruchirappalli.
Coupled nonlinear surface acoustic wave oscillator system – A novel sensor configuration. S.S. Jha, R.D.S. Yadava. In: 19th IEEE Workshop on Nonlinear Dynamics of Electronic Systems, March 2011.
SAW interdigital transducer designs for multiple frequency oscillators and sensors. R. Kshetrimayum, M. Khaneja, R.P. Tandon, R.D.S. Yadava. In: Proc. 14th National Symposium on Ultrasonics, Feb 16-18, 2006, New Delhi. J. Pure and Applied Ultrasonics, vol. 29, no. 1, 2007, pp 46-53.
Piezoelectric crystals for surface acoustic wave (SAW) devices and sensors applications. R. Kshetrimayum, R.P. Tandon, R.D.S. Yadava. In: Advances in Technologically Important Crystals, (Ed) B. Kumar, R.P. Tandon. Macmillan, New Delhi, 2006. pp 385-390.
SAW sensors based electronic nose- a technology assessment from the perspective of indigenous development. R.D.S. Yadava. In: DRDO Workshop on NBC Materials and Sensors, 27-28 Jan 2003, Gwalior.
Design and development of a SAW chemical sensor system. A.T. Nimal, U. Mittal, M. Singh, M. Khaneja, R.D.S. Yadava, In: DRDO Workshop on NBC Materials and Sensors, 27-28 Jan 2003, Gwalior.
Development of surface acoustic wave-based TNT sensor using poly(dimethyl)siloxane as chemical interface. G.K. Kannan, B. Rashmi, J.C. Kapoor, A.T. Nimal, U. Mittal, R.D.S. Yadava. In: Proc. National Conference on Sensor Technology, CFEES, Delhi, India. 26-27 Sept 2002, pp 185-189.
SAW sensor technology for detection of CW agents ̶ An appraisal. R. D.S. Yadava. In: Proc. 8th National Seminar on Physics and Technology of Sensors (NSPTS-8), 27 Feb-01 Mar 2001, Kalpakkam. I-12.
Optimizing transducer design for SAW chemical and biological sensors. M. Khaneja, R.D.S. Yadava. In: Proc. 8th National Seminar on Physics and Technology of Sensors (NSPTS-8), 27 Feb-01 Mar 2001, Kalpakkam. C-36.
Development of a microcontroller-based SAW chemical sensor. A.T. Nimal, U. Mittal, R.D.S. Yadava. In: Proc. 8th National Seminar on Physics and Technology of Sensors (NSPTS-8), 27 Feb-01 Mar 2001, Kalpakkam. C-71.
Realizing chemical sensors using SAW delay lines. A.T. Nimal, U. Mittal, R.D.S. Yadava. In: Proc. 7th National Seminar on Physics and Technology of Sensors (NSPTS-7),14-16 Feb 2000, Pune. C-23.
An acoustic wave bio-sensor for detection of potability of water. S. Sinha, A.T. Nimal, U. Mittal, R.D.S. Yadava, V. Limaye, D. Deobagkar. In: Proc. 7th National Seminar on Physics and Technology of Sensors (NSPTS-7),14-16 Feb 2000, Pune. C-39.
Utilizing surface skimming bulk waves for detection of E-coli in water. S. Sinha, U. Mittal, A.T. Nimal, R.D.S. Yadava, V. Limaye, D. Deobagkar. In: Proc. International Conference and Exhibition on Ultrasonics, 2-4 Dec 1999, New Delhi. pp 156-159.
Portable surface acoustic wave sensor for detection of SO2 in vapor phase. A.T. Nimal, S. Sinha, U. Mittal, R.D.S. Yadava. In: Proc. International Conference and Exhibition on Ultrasonics, 2-4 Dec 1999, New Delhi. pp 160-163.
SAW Devices & Radar Signal Processing
Analysis of design and compensation methods for suppression of sidelobes in SAW pulse compression filters. R.D.S. Yadava, M. Khaneja. In: Proc. International Radar Symposium (IRS India - 99),14-17 Dec 1999, Bangalore. pp 408-417.
Performance sensitivity of SAW band pass filters on fabricational errors. M. Khaneja, R.D.S. Yadava. In: Proc. International Radar Symposium (IRS India - 99), 14-17 Dec 1999, Bangalore. pp 386-397.
On the adaptation of Remez exchange algorithm for the design of linear phase SAW filters. M. Khaneja, R.D.S. Yadava. In: Proc. International Conference and Exhibition on Ultrasonics, 2-4 Dec 1999, New Delhi. pp 168-71.
A comparative study of FM pulse compression techniques based on digital and SAW devices. M. Mittal, A.T. Nimal, R.D.S. Yadava. In: Proc. International Conference and Exhibition on Ultrasonics, 2-4 Dec 1999, New Delhi. pp. 164-167.
Matched SAW chirp filters for pulse compression radars. R.D.S. Yadava. M. Batra, P.C. Nagpal. In: Proc. National Symposium on Recent Advances in Microwaves and Lightwaves, Dec 1995, New Delhi. pp 319-325.
HgCdTe Materials & IR Sensors
Electron probe microanalysis of Hg1-xCdxTe by wavelength dispersive spectrometry. R.D.S. Yadava, R.K. Sharma, B.B. Sharma, M. Vijaykumar, P.C. Angelo. In: Proc. Conf. Compound Semiconductors and Related Technologies, 21-23 Sept 1983, Madras. pp 132-144.
Photoconductive HgCdTe infrared detectors in 8–14 μm region. R.D.S. Yadava, N. Chhabra, H. Kaur, G. Mohan, R.K. Madaria, B.B. Sharma, A.V.R. Warrier. Proc. Conf. Compound Semiconductors and Related Technologies, 21-23 Sept 1983, Madras. pp 185-202.
Infrared detector quality mercury-cadmium-telluride crystal growth and evaluation. R.D.S. Yadava, B.B. Sharma. Proc. Int. Conf. Physics of Semiconductor Devices, Dec.1981, Delhi. pp 216-18.
Sponsored Research & Technology Development
“Development of data fusion models and algorithms for molecular recognition in polymeric sensor platforms”. R.D.S. Yadava (Principal Investigator), Banaras Hindu University, Varanasi, India. Defence R&D Project No. ERIP/ER/ 0703643/M/01/1025 Dec 14, 2007.
“Feasibility study for development of electronic nose technology”. R.D.S. Yadava (Principal investigator), Banaras Hindu University, Varanasi. DST Sponsored Project No. DST/TSG/PT/2007/06 Sept 18, 2007.
“Development of high sensitivity microsensors based on surface acoustic wave (SAW) devices for detection of chemical warfare agents and explosives”. R.D.S. Yadava (Coordinator), Solid State Physics Laboratory, Delhi. Defence R&D Organization Project Report: No. SSPL-164-R-2003.
“Design, development and production of surface acoustic wave (SAW) devices and subsystems for commercial and strategic applications”. R.D.S. Yadava (Coordinator), Solid State Physics Laboratory, Delhi. Defence R&D Organization Project Report: No. SSPL-161-R-2002.
“Studies towards Development of Surface acoustic Wave (SAW) Biosensors”. R.D.S. Yadava (Coordinator), Solid State Physics Laboratory, Delhi. Defence R&D Project Report No. SSPL-162-R-2002.
“Development of advanced SAW technology for signal processing and environment monitoring”. R.D.S. Yadava (Coordinator), Solid State Physics Laboratory, Delhi. Defence R&D Organization & Indo-Russia ILTP Project No. INT/ILTP/A-2(b).15, Oct 2002.
“Development of mercury-cadmium-telluride for infrared detectors B.B. Sharma (Coordinator), R.D.S. Yadava. Solid State Physics Laboratory, Delhi. Defence R&D Organization Project Report: No. SPL 83 U1/SPL-69.
Knowledge Dissemination & Community Building
CEP Course: "Advanced Sensor Technologies". R.D.S. Yadava (Coordinator), Solid State Physics Laboratory, Delhi, 9-13 February 2004.
SAW Technology Mission Document: "Surface Acoustic Wave (SAW) Devices: An Overview and Applications in Strategic and Civilian Sectors". Jointly produced by Solid State Physics Laboratory (RDS Yadava) (Delhi), Bharat Electronics Limited (Bangalore), Indian Telephone Industries (Bangalore), Indian Institute of Technology (New Delhi), and Department of Electronics (New Delhi), 1998.
Workshop: "SAW Devices - Physics, Technology and Applications". R.D.S. Yadava (Coordinator), Solid State Physics Laboratory, Delhi, 7-11 July 1997.