Arindam Biswas - Academia.edu (original) (raw)
Papers by Arindam Biswas
Scientia Horticulturae, 2021
Abstract Drought, an acute abiotic stress, limits growth and yields of crops including tomato. Sa... more Abstract Drought, an acute abiotic stress, limits growth and yields of crops including tomato. Salicylic acid (SA) has been widely used as an abiotic stress mitigating agent in various crops. Two experiments were conducted to assess the effects of SA applied as a foliar spray and as a seed priming material on growth, yield, and fruit quality of grape tomato under drought stress. In the first experiment, SA was applied as a foliar spray in five doses (0, 50, 100, 150, and 200 mg L–1) under three soil moisture regimes (50 %, 75 %, and 100 % field capacity [FC]). In the second experiment, doses of SA and soil moisture regimes were the same as first experiment, except that SA was applied as a seed priming material. Data on growth, fruit yield, and quality of grape tomato were collected. The results revealed that severe moisture deficit of 50 % FC adversely affected growth and fruit yield of grape tomato by 94 % in experiment 1 (foliar application of SA) and by 95 % in experiment 2 (seed priming of SA) compared with 100 % FC, while fruit quality parameters (fruit pH, total soluble solids, and color index) improved with reducing soil moisture regime. Exogenous application of SA at 150 mg L–1 as a foliar spray enhanced fruit yield by 41 % and at 100 mg L–1 as a seed priming material resulted in 33 % increase in fruit yield compared with the control. However, there was no effect of SA supplementation at severe moisture deficit of 50 % FC regardless of experiments and doses. Foliar application of SA at 150 mg L–1 resulted in statistically similar yields between moderate soil moisture level of 75 % FC and sufficient soil moisture level of 100 % FC, whereas in case of seed priming treatment, maximum fruit yield was obtained at 100 mg L–1 SA dose in combination with 100 % FC. Grape tomato yielded more with foliar application of SA (113.1 g plant–1 fruit yield at 150 mg L–1) than did with SA seed priming (87.8 g plant–1 fruit yield at 100 mg L–1). Exogenous application of SA at 150 mg L–1 as a foliar spray and at 100 mg L–1 as a seed priming material could be recommended when grape tomato is grown under moderate to sufficient soil moisture availability.
Bangladesh Journal of Agricultural Research, 2015
The study was conducted to investigate the genetic diversity of some maize inbreds under salinity... more The study was conducted to investigate the genetic diversity of some maize inbreds under salinity stress condition using Mahalanobiss statistic (D2) and principal component analysis. Analysis of variance showed significant difference for all the characters. Results of multivariate analysis revealed that seventeen inbred lines formed five clusters at 12 dS level of salinity. The highest intra-cluster distance was recorded in cluster IV containing three genotypes and the lowest was in cluster V having one genotype. The inter cluster D2 values revealed maximum distance among the clusters. The highest inter cluster distance was observed between clusters IV & III and lowest was between V & I. Cluster IV had the highest cluster means for cob height, tassel length, cob length, SPAD value, number of seeds/cob, 100 seed weight, cob diameter and grain yield per plant. Considering cluster distance, inter-genotypic distance, cluster mean and other agronomic performances the genotypes CZ29, CZ3...
ABSTRACT Disclosed is a method and apparatus to provide for fingerprint minutiae matching using s... more ABSTRACT Disclosed is a method and apparatus to provide for fingerprint minutiae matching using scoring techniques. A plurality of minutiae in a fingerprint image is defined. A score associated with each minutia corresponding to the validity of each minutia is estimated. The fingerprint image is then matched against one or more sample fingerprint images utilizing a partial point set pattern matching (PSPM) algorithm.
International Journal of Computer Mathematics, Aug 8, 2013
Lecture Notes in Computer Science
The problem of constructing a tight isothetic outer (or inner) polygon covering an arbitrarily sh... more The problem of constructing a tight isothetic outer (or inner) polygon covering an arbitrarily shaped 2D object on a background grid, is addressed in this paper, and a novel algorithm is proposed. Such covers have many applications to image mining, rough sets, computational geometry, and robotics. Designing efficient algorithms for these cover problems was an open problem in the literature.
Computer Methods and Programs in Biomedicine, 2015
Automated fracture detection is an essential part of a computer-aided tele-medicine system. In th... more Automated fracture detection is an essential part of a computer-aided tele-medicine system. In this paper, we have proposed a unified technique for the detection and evaluation of orthopaedic fractures in long-bone digital X-ray image. We have also developed a software tool that can be conveniently used by paramedics or specialist doctors. The proposed tool first segments the bone region of an input digital X-ray image from its surrounding flesh region and then generates the bone-contour using an adaptive thresholding approach. Next, it performs unsupervised correction of bone-contour discontinuities that might have been generated because of segmentation errors, and finally detects the presence of fracture in the bone. Moreover, the method can also localize the line-of-break for easy visualization of the fracture, identify its orientation, and assess the extent of damage in the bone. Several concepts from digital geometry such as relaxed straightness and concavity index are utilized to correct contour imperfections, and to detect fracture locations and type. Experiments on a database of several long-bone digital X-ray images show satisfactory results.
IEEE International Conference on Image Processing 2005, 2005
Efficient and successful joining of torn pieces of pa-pers to reconstruct the original documents ... more Efficient and successful joining of torn pieces of pa-pers to reconstruct the original documents is an impor-tant and challenging issue in many disciplines, especially in forensics and investigation sciences. Automation of the process by means of appropriate techniques can speed up ...
Occlusion Sequence Mining for Complex Multi-Agent Activity Discovery Prithwijit Guha Dept. of Ele... more Occlusion Sequence Mining for Complex Multi-Agent Activity Discovery Prithwijit Guha Dept. of Electrical Engg. IIT Kanpur, India Email: pguha@iitk.ac.in Arindam Biswas Dept. of Computer Sc. & Engg. IIT Kanpur, India Email: arindam@cse.iitk.ac.in Amitabha Mukerjee Dept. ...
Hall mobility of the two dimensional electron gas in GaN quantum wells are calculated in the temp... more Hall mobility of the two dimensional electron gas in GaN quantum wells are calculated in the temperature range 1K-14K incorporating deformation potential acoustic, piezoelectric, background and remote ionized impurity scatterings. The Boltzmann transport equation is solved by a numerical iterative technique using Fermi-Dirac statistics. The variations of longitudinal magnetoresistivity with magnetic field and temperature agree with the available expe-rimental results at temperature T=1.38 K. The Hall mobility is found to decrease sharply at low magnetic fields and the variation becomes less sensitive to higher field values. Hall mobility at such low temperatures has agreed with the re-sults obtained by other researcher.
Lecture Notes in Computer Science, 2015
Proceedings of the 2015 Third International Conference on Computer, Communication, Control and Information Technology (C3IT), 2015
Microwave and Optical Technology Letters, 2014
Scientia Horticulturae, 2021
Abstract Drought, an acute abiotic stress, limits growth and yields of crops including tomato. Sa... more Abstract Drought, an acute abiotic stress, limits growth and yields of crops including tomato. Salicylic acid (SA) has been widely used as an abiotic stress mitigating agent in various crops. Two experiments were conducted to assess the effects of SA applied as a foliar spray and as a seed priming material on growth, yield, and fruit quality of grape tomato under drought stress. In the first experiment, SA was applied as a foliar spray in five doses (0, 50, 100, 150, and 200 mg L–1) under three soil moisture regimes (50 %, 75 %, and 100 % field capacity [FC]). In the second experiment, doses of SA and soil moisture regimes were the same as first experiment, except that SA was applied as a seed priming material. Data on growth, fruit yield, and quality of grape tomato were collected. The results revealed that severe moisture deficit of 50 % FC adversely affected growth and fruit yield of grape tomato by 94 % in experiment 1 (foliar application of SA) and by 95 % in experiment 2 (seed priming of SA) compared with 100 % FC, while fruit quality parameters (fruit pH, total soluble solids, and color index) improved with reducing soil moisture regime. Exogenous application of SA at 150 mg L–1 as a foliar spray enhanced fruit yield by 41 % and at 100 mg L–1 as a seed priming material resulted in 33 % increase in fruit yield compared with the control. However, there was no effect of SA supplementation at severe moisture deficit of 50 % FC regardless of experiments and doses. Foliar application of SA at 150 mg L–1 resulted in statistically similar yields between moderate soil moisture level of 75 % FC and sufficient soil moisture level of 100 % FC, whereas in case of seed priming treatment, maximum fruit yield was obtained at 100 mg L–1 SA dose in combination with 100 % FC. Grape tomato yielded more with foliar application of SA (113.1 g plant–1 fruit yield at 150 mg L–1) than did with SA seed priming (87.8 g plant–1 fruit yield at 100 mg L–1). Exogenous application of SA at 150 mg L–1 as a foliar spray and at 100 mg L–1 as a seed priming material could be recommended when grape tomato is grown under moderate to sufficient soil moisture availability.
Bangladesh Journal of Agricultural Research, 2015
The study was conducted to investigate the genetic diversity of some maize inbreds under salinity... more The study was conducted to investigate the genetic diversity of some maize inbreds under salinity stress condition using Mahalanobiss statistic (D2) and principal component analysis. Analysis of variance showed significant difference for all the characters. Results of multivariate analysis revealed that seventeen inbred lines formed five clusters at 12 dS level of salinity. The highest intra-cluster distance was recorded in cluster IV containing three genotypes and the lowest was in cluster V having one genotype. The inter cluster D2 values revealed maximum distance among the clusters. The highest inter cluster distance was observed between clusters IV & III and lowest was between V & I. Cluster IV had the highest cluster means for cob height, tassel length, cob length, SPAD value, number of seeds/cob, 100 seed weight, cob diameter and grain yield per plant. Considering cluster distance, inter-genotypic distance, cluster mean and other agronomic performances the genotypes CZ29, CZ3...
ABSTRACT Disclosed is a method and apparatus to provide for fingerprint minutiae matching using s... more ABSTRACT Disclosed is a method and apparatus to provide for fingerprint minutiae matching using scoring techniques. A plurality of minutiae in a fingerprint image is defined. A score associated with each minutia corresponding to the validity of each minutia is estimated. The fingerprint image is then matched against one or more sample fingerprint images utilizing a partial point set pattern matching (PSPM) algorithm.
International Journal of Computer Mathematics, Aug 8, 2013
Lecture Notes in Computer Science
The problem of constructing a tight isothetic outer (or inner) polygon covering an arbitrarily sh... more The problem of constructing a tight isothetic outer (or inner) polygon covering an arbitrarily shaped 2D object on a background grid, is addressed in this paper, and a novel algorithm is proposed. Such covers have many applications to image mining, rough sets, computational geometry, and robotics. Designing efficient algorithms for these cover problems was an open problem in the literature.
Computer Methods and Programs in Biomedicine, 2015
Automated fracture detection is an essential part of a computer-aided tele-medicine system. In th... more Automated fracture detection is an essential part of a computer-aided tele-medicine system. In this paper, we have proposed a unified technique for the detection and evaluation of orthopaedic fractures in long-bone digital X-ray image. We have also developed a software tool that can be conveniently used by paramedics or specialist doctors. The proposed tool first segments the bone region of an input digital X-ray image from its surrounding flesh region and then generates the bone-contour using an adaptive thresholding approach. Next, it performs unsupervised correction of bone-contour discontinuities that might have been generated because of segmentation errors, and finally detects the presence of fracture in the bone. Moreover, the method can also localize the line-of-break for easy visualization of the fracture, identify its orientation, and assess the extent of damage in the bone. Several concepts from digital geometry such as relaxed straightness and concavity index are utilized to correct contour imperfections, and to detect fracture locations and type. Experiments on a database of several long-bone digital X-ray images show satisfactory results.
IEEE International Conference on Image Processing 2005, 2005
Efficient and successful joining of torn pieces of pa-pers to reconstruct the original documents ... more Efficient and successful joining of torn pieces of pa-pers to reconstruct the original documents is an impor-tant and challenging issue in many disciplines, especially in forensics and investigation sciences. Automation of the process by means of appropriate techniques can speed up ...
Occlusion Sequence Mining for Complex Multi-Agent Activity Discovery Prithwijit Guha Dept. of Ele... more Occlusion Sequence Mining for Complex Multi-Agent Activity Discovery Prithwijit Guha Dept. of Electrical Engg. IIT Kanpur, India Email: pguha@iitk.ac.in Arindam Biswas Dept. of Computer Sc. & Engg. IIT Kanpur, India Email: arindam@cse.iitk.ac.in Amitabha Mukerjee Dept. ...
Hall mobility of the two dimensional electron gas in GaN quantum wells are calculated in the temp... more Hall mobility of the two dimensional electron gas in GaN quantum wells are calculated in the temperature range 1K-14K incorporating deformation potential acoustic, piezoelectric, background and remote ionized impurity scatterings. The Boltzmann transport equation is solved by a numerical iterative technique using Fermi-Dirac statistics. The variations of longitudinal magnetoresistivity with magnetic field and temperature agree with the available expe-rimental results at temperature T=1.38 K. The Hall mobility is found to decrease sharply at low magnetic fields and the variation becomes less sensitive to higher field values. Hall mobility at such low temperatures has agreed with the re-sults obtained by other researcher.
Lecture Notes in Computer Science, 2015
Proceedings of the 2015 Third International Conference on Computer, Communication, Control and Information Technology (C3IT), 2015
Microwave and Optical Technology Letters, 2014