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Reversible Logic Based MOS Current Mode Logic Implementation in Digital Circuits

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Computers, Materials & Continua 2022年第2期70卷 3609-3624页

作者： S.Sharmila devi v.Bhanumathi Department of Electronics and Communication Engineering Sri Ramakrishna Engineering CollegeCoimbatoreIndia Department of Electronics and Communication Engineering Anna UniversityRegional CampusCoimbatoreIndia

Now a days,MOS Current Mode Logic(MCML)has emerged as a better alternative to Complementary Metal Oxide Semiconductor(CMOS)logic in digital *** works have only traditional logic gates that have issues with information *** logic is incorporated with MOS Current Mode Logic(MCML)in this proposed work to solve this problem,which is used for multiplier design,D Flip-Flop(DFF)and *** minimization of power and area is the main aim of the *** reversible logic,the count of outputs and inputs is retained as the same value for creating one-to-one mapping.A unique output vector set can be generated for each input vector set and information loss is also *** reversible MCML based multiplier,reversible logic full adder is utilized to minimize the area and power.D flip-flops based on reversible MCML are often designed to store information that is then combined to form a reversible MCML based *** proposed reversible MCML multiplier attains average power of 0.683 mW,Reversible MCML based DFF achieves 0.56μW and Reversible MCML based 8-bit register attains 04.04μ*** result shows that the proposed Reversible MCML based multiplier,Reversible MCML based D flip-flop and ReversibleMCML based register achieves better performance in terms of current,power dissipation,average power and area.

关键词： MOS current mode logic reversible logic multiplier D flip-flop and register

Mathematical modeling on drying of Syzygium Cumini(L.)

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International Journal of Agricultural and Biological Engineering 2013年第4期6卷 96-103页

作者： K.Kalaivani v.Chitra devi Department of Chemical Engineering Kongu Engineering CollegePerunduraiErode-638052TNIndia

In this study,drying characteristics of Syzygium cumini was experimentally investigated under the temperatures of 50°C,60°C and 70°C and the mathematical models were used to fit the drying of Syzygium *** transfered from Syzygium cumini was described by applying the Fick’s diffusion model and the effective moisture diffusivity was *** temperature dependence of the effective moisture diffusivity for the drying of Syzygium cumini samples was described by an Arrhenius-type relationship with activation *** data were fitted to seven drying models,namely Lewis,Henderson and Pabis,Logarithmic,Twoterm,Page,Wang and Singh and modified Henderson and *** Logarithmic model was found as the best fitted model in describing the drying behavior of Syzygium cumini.

关键词： activation energy drying effective moisture diffusivity mathematical model Syzygium cumini

Synthesis and photoluminescent performance of novel europium(Ⅲ) carboxylates with heterocyclic ancillary ligands

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Rare Metals 2022年第4期41卷 1342-1352页

作者： Priyanka Dhankhar Rekha devi Sushma devi Sangeeta Chahar Mandeep Dalal v.B.Taxak S.P.Khatkar Priti Boora Department of Chemistry Maharshi Dayanand UniversityRohtak 124001India

Five novel europium(Ⅲ)complexes with 2-[4-(dibutylamino)-2-hydroxybenzoyl]benzoic acid(DAHB)as primary ligand and bathophenanthroline(batho),2,2’-bipyridyl(bipy),5,6-dimethyl-1,10-phenanthroline(dmph),1,10-phenanthroline(phen)as ancillary ligands were syn-thesized via solution precipitation *** structural formulae of synthesized complexes were speculated to be Eu(DABH)_(3)·2H_(2)O(C1),Eu(DABH)_(3)·batho(C2),Eu(DABH)_(3)·bipy(C3),Eu(DABH)_(3)·dmph(C4)and Eu(DABH)_(3)·phen(C5)by elemental analysis,infrared spectroscopy and proton nuclear magnetic resonance spec-troscopy(^(1)H-NMR).The photoluminescent properties and thermal stability of the complexes were investigated by photoluminescent spectroscopy and thermogravimetric analysis(TG-DTG),*** Commission Inter-nationale de I’Eclairage(CIE)color coordinates,Judd–Ofelt intensity parameter(Ω_(2)),total quantum yield,intrinsic quantum efficiency and energy transfer dynamics of com-plexes were also *** excitation spectra of com-plexes are extended up to visible *** complexes exhibit characteristic photoemission of Eu^(3+)metal ion with high color purity in red region attributed to efficient energy transfer from ligand to metal *** replacement of water molecules from coordination sphere of europium ion by ancillary ligands results in enhancement of luminescent properties of the C2–C5 complexes,indicating that ancillary ligands act as additional light harvesting centers in sensiti-zation *** thermal studies show that these complexes are suitable for meeting the requirement of temperature for fabrication of OLEDs devices.

关键词： Photoluminescence Europium Sensitization Aromatic carboxylic acid Energy transfer dynamics

Fermentative production of dextran using Leuconostoc spp. isolated from fermented food products

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Frontiers in Biology 2014年第3期9卷 244-253页

作者： C. SUBATHRA devi Shantan REDDY v. MOHANASRINIvASAN School of Biosciences and Techndogy VIT University Vellore-632014 Tamil Nadu India

Leuconostoc spp. （LSland LI1） isolated from sauerkraut and idli batter was selected for dextran production. To enhance the yield of dextran, effects of various parameters such as sucrose concentration, pH, temperature, incubation and inoculum percentage were analyzed. The optimum sucrose concentration for the Leuconostoc spp. （LS1 and LI1） was found to be 15% and 25% respectively. Isolates produced maximum dextran after 20 h of incubation at 29℃ and the optimum pH was found between 8 and 8.5. The inoculum concentration of 7.5% was more favorable for the production of dextran by Leuconostoc spp. （LS1 and LI1）. The growth kinetic parameters were studied and compared for the strains LS1 and LI1. Mass production of dextran was carried out using a stirred tank batch reactor. FTIR analysis was done to determine the functional groups of dextran, sephadex is prepared by cross linking dextran using epichlorohydrin and the functional groups are determined by FTIR analysis.

关键词： dextran Leuconostoc sp. FTIR bio-polymer sephadex epichlorohydrin

EfficientNetv2 Model for Plant Disease Classification and Pest Recognition

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Computer Systems Science & Engineering 2023年第5期45卷 2249-2263页

作者： R.S.Sandhya devi v.Rvijay Kumar P.Sivakumar Department of EEE Kumaraguru College of TechnologyCoimbatore641049India Department of Electronics and Communication Engineering Anna University Regional CampusCoimbatore641046India Department of EEE PSG College of TechnologyCoimbatore641004India

Plant disease classification and prevention of spreading of the disease at earlier stages based on visual leaves symptoms and Pest recognition through deep learning-based image classification is in the forefront of *** perform the investigation on Plant and pest classification,Transfer Learning(TL)approach is used on *** requires limited labelled data and shorter training ***,the limitation of TL is the pre-trained model network’s topology is static and the knowledge acquired is detrimentally overwriting the old ***-v2 is a Convolutional Neural Network(CNN)model with significant high speed learning rates across variable sized *** model employs a form of progressive learning mechanism which expands the network topology gradually over the course of training process improving the model’s learning *** provides a better interpretability of the model’s understanding on the test *** these insights,our work investigates the effectiveness of Efficienetv2 model trained on a class imbalanced dataset for plant disease classification and pest recognition by means of combining TL and progressive learning *** Progressive Learning for TL(PL-TL)is used in our work consisting of 38 classes of Plantvillage dataset of crops and fruit species,5 classes of cassava leaf diseases and another dataset with around 102 classes of crop pest images downloaded from popular dataset platforms,though it is not a benchmark *** test the predictability rate of the model in classifying leaf diseases with similar visual symptoms,Mix-up data augmentation technique is used at the ratio of 1:4 on corn and tomato classes which has high probability of misinterpretation of disease ***,the paper compares the TL approach performed on the above mentioned three types of data set using well established CNN based Inceptionv3,and vision Transformer a non-CNN *** clearly depicts that EfficientNetv2 has an out

关键词： Image classification transfer learning efficientNetv2 mix-up data augmentation inception v3

Does epigenetics have a role in age related macular degeneration and diabetic retinopathy?

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Genes & Diseases 2021年第3期8卷 279-286页

作者： S.Mohana devi I.Mahalaxmi J.Kaavya v.Chinnkulandhai v.Balachandar SN ONGC Department of Genetics and Molecular Biology Vision Research FoundationSankara Nethralaya41/18College RoadChennai600006India Department of Zoology Avinashilingam Institute for Home Science and Higher Education for WomenAvinashilingam University for WomenCoimbatoreTamil Nadu641046India Department of Biochemistry Dr.N.G.P Arts and Science CollegeCoimbatoreTami lNadu641046India Human Molecular Genetics and Stem Cells Laboratory Department of Human Genetics and Molecular BiologyBharathiar UniversityCoimbatoreTamil Nadu641046India

Epigenetic mechanisms play an important part in the regulation of gene expression and these alterations may induce long-term changes in gene function and *** have received extensive attention in bridging the gap between environmental exposures and disease development via their influence on gene *** methylation is the earliest discovered epigenetic *** this review,we try to examine the role of DNA methylation and histone modification in Age related macular degeneration(AMD)and Diabetic Retinopathy(DR),its vascular complications and recent *** the complex nature of AMD and DR,it is crucial to improve therapeutics which will greatly enhance the quality of life and reduce the burden for millions of patients living with these potentially blinding conditions.

关键词： Age-related macular degeneration(AMD) Diabetic Retinopathy(DR) Epigenetics Gene expression

Climate change evidence in tree growth and stand productivity at the upper treeline ecotone in the Polar Ural Mountains

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Forest Ecosystems 2020年第1期7卷 76-91页

作者： Nadezhda M.devi vladimir v.Kukarskih Аrina A.Galimova valeriy S.Mazepa Andrey A.Grigoriev Institute of Plant and Animal Ecology Ural BranchRussian Academy of Sciences8 Marta202/3Ekaterinburg 620144Russia

Background:Recent warming is affecting species composition and species areal distribution of many ***,although most treeline studies have estimated the rates of forest expansion into tundra,still little is known about the long-term dynamic of stand productivity at the forest-tundra ***,we make use of tree-ring data from 350 larch(Larix sibirica Ledeb.)and spruce(Picea obovata Ledeb.)sampled along the singular altitudinal treeline ecotone at the Polar Urals to assess the dynamic of stand establishment and productivity,and link the results with meteorological observations to identify the main environmental ***:The analysis of stand instalment indicated that more than 90%of the living trees appeared after *** this period,the stand became denser and moved 50m upward,while in recent decades the trees of both species grew *** maximum afforestation occurred in the last decades of the twentieth century,and the large number of encountered saplings indicates that the forest is still *** upward shift coincided with a slight increase of May-August and nearly doubling of September-April precipitation while the increase in growth matched with an early growth season warming(June+0.27°C per decade since 1901).This increase in radial growth combined with the stand densification led to a 6-90 times increase of biomass since ***:Tree-ring based twentieth century reconstruction at the treeline ecotone shows an ongoing forest densification and expansion accompanied by an increased *** changes are driven by climate change mechanism,whereby the leading factors are the significant increase in May-June temperatures and precipitation during the dormant *** of phytomass accumulation mechanisms within treeline ecotone is valuable for improving our understanding of carbon dynamics and the overall climate balance in current treeline ecosystems and for predicting how these will be altered by global ch

关键词： Polar Urals Treeline Productivity Climate change Radial growth Recruitment Larch Spruce

Latitudinal and temporal shifts in the radial growth-climate response of Siberian larch in the Polar Urals

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Journal of Mountain Science 2018年第4期15卷 722-729页

作者： vladimir v.KUKARSKIH Nadezhda M.devi Pavel A.MOISEEv Andrey A.GRIGORIEv Maksim O.BUBNOv Institute of plant and animal ecology UB RAS 8-Marta 202/3 620144 Ekaterinburg Russia

This paper presents a dendroclimatic analysis of Siberian larch trees sampled along a latitudinal 260-km transect located in the Polar Urals,Russia. Three standardised chronologies were built over a length of 230–293 years using 79 individual tree-ring chronologies collected in the southern,middle and northern parts of the Polar *** correlation functions showed that the annual growth of the larches was mainly influenced by the air temperatures in June and July. The relative role of the temperatures increased from south to north. Daily air temperature data analysis revealed that the duration of the growing season in the northern part of the Polar Urals is 24 days less than that in the southern part. At the present time, air temperatures exceeded threshold of 8~℃, 5 days earlier than it did in the beginning of the 20 th century In response to the increase in the duration of the growing season and the changing winter conditions in the Polar Urals over the last 130 years, radial growth–temperature relationships in larches have weakened;this effect was strongly pronounced in the southern part of the Polar Urals.

关键词： Tree rings Dendroclimatilogy Larix sibirica Growing season Polar Urals

TRISO fuel volume fraction and homogeneity:a nondestructive characterization

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Nuclear Science and Techniques 2019年第3期30卷 46-52页

作者： K. v. vrinda devi J. N. Dubey Jyoti Gupta I. H. Shaikh Radiometallurgy Division Bhabha Atomic Research CentreMumbaiIndia

A new nondestructive method to estimate the volume fraction and homogeneity of tristructural isotropic(TRISO)-coated fuel particles in fuel compacts designed for high-temperature reactors has been developed using image analysis of conventional X-radiographs. The method is demonstrated on surrogate fuel compacts containing TRISO-coated particles with kernels made of zirconium dioxide. The methodology incorporates a correction for superimposed images of TRISO particles such that a single X-ray image obtained in any one random orientation is sufficient to characterize the fuel compact in terms of volume fraction and homogeneity. The method is based on the virtual segregation of images of each particle inside the compact with the aid of a calibration standard.

关键词： TRISO volume fraction Homogeneity Radiography