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Optimization of Out-of-Band Emission Using kaiser-Bessel Filter for UFMC in 5G Cellular Communications

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China Communications 2019年第8期16卷 15-23页

作者： Ravi Sekhar Yarrabothu usha rani Nelakuditi Department of ECE VFSTR (Deem To Be University)

Across the world, we are currently witnessing the deployments of 4 G LTE-Advanced and the 5 G research is reaching its peak point. The 5 G research mainly concentrates on addressing some of the existing OFDM based LTE problems along with use of non-contiguous fragmented spectrum. Universal Filtered Multi Carrier(UFMC) has been considered as one of the candidate waveform for the 5 G communications because it provides robustness against the Inter Symbol Interference(ISI), and Inter Carrier Interference(ICI) and is suitable for low latency scenarios. In this paper, a novel approach is proposed to use kaiser-Bessel filter based pulse shaping instead of standard Dolph-Chebyshev filter for UFMC based waveform to reduce the spectral leakage into nearby sub-bands. In this paper, UFMC system is simulated using MATLAB software, a comparative study for Dolph-Chebyshev and kaiser-Bessel filters are performed and the results are also presented in terms of power spectrum density(PSD) analysis, Complementary Cumulative Distribution Function(CCDF) analysis, and Adjacent Channel Power Ratio(ACPR) analysis. The simulated results show a better power spectral density and lower sidebands for UFMC(kaiser Based window), when compared with UFMC(Dolph-Chebyshev) and conventional OFDM.

关键词： 5G Dolph-Chebyshev filter kaiser-Bessel filter OFDM UFMC

Microwave assisted synthesis of poly（2-hydroxyethylmethacrylate） grafted agar （Ag-g-P（HEMA）） and its application as a flocculant for wastewater treatment

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Frontiers of Chemical Science and Engineering 2013年第3期7卷 312-321页

作者： Gautam SEN G. usha rani Sumit MISHRA Department of Applied Chemistry Birla Institute of Technology Mesra Ranchi 835 215 India

Poly（2-hydroxyethylmethacrylate） chains were grafted onto the backbone of agar using a microwave assisted method involving a combination of microwave irradiation and ceric ammonium nitrate to initiate the grafting reaction. The synthesized graft copolymers were characterized by intrinsic viscosity measurements, Fourier transform infrared spectroscopy, elemental analysis （C, H, N, O and S） and scanning electron microscopy. Ag-g-P （HEMA）-2 showed a much higher flocculation efficacy than agar. The optimized dosage of flocculation for Ag-g-P （HEMA）-2 in the wastewater was found to be 0.75 ppm. Compared to agar, Ag-g-P（HEMA）-2 was found to considerably reduce the pollutant load in the wastewater.

关键词： agar flocculant microwave assisted synth- esis jar test protocol poly(HEMA) grafted agar wastewater treatment

On Some Properties of Neutrosophic Semi Continuous and Almost Continuous Mapping

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Computer Modeling in Engineering & Sciences 2022年第2期130卷 1017-1031页

作者： Bhimraj Basumatary Nijwm Wary Jeevan krishna khaklary usha rani Basumatary Department of Mathematical Sciences Bodoland UniversityKokrajhar783370India Central Institute of Technology Kokrajhar783370India

The neutrality’s origin,character,and extent are studied in the Neutrosophic *** neutrosophic set is an essential issue to research since it opens the door to a wide range of scientific and technological *** neutrosophic set can find its spot to research because the universe is filled with *** set is currently being developed to express uncertain,imprecise,partial,and inconsistent *** membership function,indeterminacymembership function,and falsitymembership function are used to express a neutrosophic set in order to address *** neutrosophic set producesmore rational conclusions in a variety of practical *** neutrosophic set displays inconsistencies in data and can solve real-world *** are directed to do our work in semi-continuous and almost continuous mapping on the basis of the neutrosophic set by observing *** we are going to study the properties of semi continuous and almost continuous mapping,we present the meaning of N-semi-open set,N-semi-closed set,N-regularly open set,N-regularly closed set,N-continuous mapping,N-open mapping,N-closed mapping,Nsemi-continuous mapping,N-semi-open mapping,N-semi-closed ***,we attempt to demonstrate a portion of their properties and furthermore referred to some examples.

关键词： N-regularly open set N-regularly closed set N-semi-continuous mapping N-almost continuous mapping

Controlled drug release of 5-amino salicylic acid by poly（2- hydroxyethylmethacrylate） grafted agar

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Frontiers of Chemical Science and Engineering 2014年第4期8卷 465-470页

作者： G. usha rani kartick Prasad DEY Srijita BHARTI Sumit MISHRA Department of Chemistry Birla Institute of Technology Mesra Ranchi 835215 Jharkhand India

The utilization of poly （2-hydroxyethylmetha- crylate） grafted agar （Ag-g-P（HEMA）） as a matrix for the controlled release of 5-aminosalicylic acid was investi- gated. Grafted copolymers of 2-hydroxyethylmethacrylate （HEMA） monomers on agar were synthesized by micro- wave assisted method. In vitro drug release studies were performed at pH values of 2 and 7 in order to investigate the possibility of pH triggered release for colon targeted drug delivery. Further, the percent grafting vs. tso （the time taken for release of 50% of the enclosed drug） value was studied and the results indicate that it may be possible to develop a programmable drug release matrix based on grafted polysaccharide. Ag-g-P（HEMA） appears to be a useful matrix for controlled release.

关键词： agar controlled drug release 5-Amino sal-icylic acid poly(2-hydroxyethylmethacrylate) grafted agar

Optical and X-Ray Studies of Marginal Contact Binary RW Dor Using TESS and XMM-Newton Observatories

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Research in Astronomy and Astrophysics 2023年第11期23卷 183-197页

作者： k.Sriram G.Mamatha rani Department of Astronomy Osmania University 500007India

Marginal short-period contact binaries are important to understand as they pose a different physical scenario than the predicted theoretical model based on the thermal relaxation oscillation mechanism due to their shallow degree of *** we present the optical and X-ray studies of a contact binary source RW Dor using the Transiting Exoplanet Survey Satellite(TESS)and XMM-Newton *** the first time we report the varying O'Connell effect and explain the asymmetry with a spot *** on the new times of minima,we make a robust estimate of the orbital period of the third body at 47.01~0.52 yr with an eccentricity e=*** show that the period-decreasing trend observed in O-C variation can be explained by both conservative mass transfer from primary to secondary and AML via stellar *** X-ray luminosity exhibited by RW Dor did not vary significantly on three different occasions and was found to be about 3.34×10~(29)erg s~(-1).Assuming that the quiescent X-ray emission is emitted from an undisturbed loop structure,the loop size is estimated to be 0.6-1×10~(10)cm which is≤Alfvén radius r_A~8×10~(10)cm.

关键词： (stars:)binaries(including multiple):close X-rays:binaries stars:activity

Optimal allocation of solar photovoltaic distributed generation in electrical distribution networks using Archimedes optimization algorithm

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Clean Energy 2022年第2期6卷 271-287页

作者： Varaprasad Janamala k Radha rani Department of Electrical and Electronics Engineering School of Engineering and TechnologyCHRIST(Deemed to be University)Bangalore-560074KarnatakaIndia Department of Electrical&Electronics Engineering R.V.R.&J.C.College of EngineeringGuntur-522019Andhra PradeshIndia

This paper proposes to resolve optimal solar photovoltaic(SPV)system locations and sizes in electrical distribution networks using a novel Archimedes optimization algorithm(AOA)inspired by physical principles in order to minimize network dependence and greenhouse gas(GHG)emissions to the greatest extent *** sensitivity factors are used to predefine the search space for sites,and AOA is used to identify the optimal locations and sizes of SPV systems for reducing grid dependence and GHG emissions from conventional power *** with composite agriculture loads on a practical Indian 22-bus agricultural feeder,a 28-bus rural feeder and an IEEE 85-bus feeder demonstrated the critical nature of optimally distributed SPV systems for minimizing grid reliance and reducing GHG emissions from conventional energy ***,the voltage profile of the network has been enhanced,resulting in significant reductions in distribution *** results of AOA were compared to those of several other nature-inspired heuristic algorithms previously published in the literature,and it was observed that AOA outperformed them in terms of convergence and redundancy when solving complex,non-linear and multivariable optimization problems.

关键词： solar photovoltaic system electrical distribution network composite load modelling Archimedes optimization algorithm distributed generation

Green-synthesized gold nanoparticles from Plumeria alba flower extract to augment catalytic degradation of organic dyes and inhibit bacterial growth

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Particuology 2016年第1期14卷 78-86页

作者： rani Mata Aswathy Bhaskaran Sudha rani Sadras Department of Biochemistry and Molecular Biology School of Life Sciences Pondicherry University Pondicherry 605014 India

Bio-inspired eco-friendly gold nanoparticles were synthesized by a green method using aqueous Plume- ria alba flower extract （PAFE）. The use of 1% and 5% concentrations of PAFE resulted in two different sizes of P. alba gold nanoparticles, PAGNPsl and PAGNPs2, with surface plasmon resonance （SPR） peaks at 552 and 536 nm, respectively. Size-controlled formation of gold nanoparticles was indicated by the SPR shift observed with increasing concentration of PAFE. The accurate size and morphology of PAGNPs I and PAGNPs2 were determined by transmission electron microscope （TEM） analysis is found to be 28 ＋ 5.6 and 15.6 4-3.4 nm, respectively, and those are spherical in shape. The antibacterial activity of PAGNPsl and PAGNPs2 was tested against Escherichia coil; the small-sized PAGNPs2 exhibited better antibacterial activity with a 16-mm zone of inhibition at a concentration of 400 txg/mL. Furthermore, the catalytic activity of PAGNPsl and PAGNPs2 was analyzed on six hazardous dyes; PAGNPs2 exhibited more pro- nounced catalytic activity than PAGNPsl. Among all of the dyes, 4-nitrophenol was most rapidly degraded to 4-aminophenol by PAGNPs2 within 5 min. The mechanism of catalysis in the presence of PAGNPsl and PAGNPs2 can be described as an electron transfer process from donor NaBH4 to an acceptor. The facile green synthesis of such eco-friendly nanoparticles in bulk suggests this method has potential industrial applications.

关键词： Plumeria alba flower extract Gold nanoparticles Size control Antibacterial Catalytic efficiency

Soy Protein Isolate Film by Incorporating Mandelic Acid as Well as Through Fermentation Mediated by Bacillus Subtilis

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Journal of Renewable Materials 2019年第2期7卷 103-115页

作者： Rakesh kumar Priya rani k.Dinesh kumar Department of Biotechnology Central University of South BiharGaya-824236India Department of Materials Science&Engineering Indian Institute of TechnologyPatna 801106India

Soy protein isolate(SPI)biopolymeric films were prepared by adding different contents of mandelic acid(1 to 5%wrt SPI)to glycerol plasticized SPI by solution casting ***,SPI was fermented by Bacillus subtilis to get fermented SPI films by solution *** mass determination of mandelic acid incorporated and fermented SPI films was carried out by sodium dodecyl sulphate-polyacrylamide gel electrophoresis(SDS-PAGE).Mandelic acid incorporated and fermented SPI films were characterized by Fourier-transform infrared spectroscopy(FT-IR),dynamic mechanical analysis(DMA),tensile strength,water uptake and optical transmittance *** indicated that incorporation of mandelic acid in SPI resulted in high tensile strength(8.03 MPa)and highα-relaxation(Tα)as well as low water *** the other hand,films cannot be prepared from fermented SPI with SPI contents of 8%and 12%.However,film from fermented SPI with 16%SPI content could be prepared but it exhibited low tensile strength(3.18 MPa)and low Tαas well as high water *** resulting mandelic acid incorporated SPI films were also subjected to antimicrobial *** all the concentration of mandelic acid,we can easily observe the antimicrobial effect in mandelic acid incorporated SPI films unlike fermented SPI *** work will be helpful in fabricating antimicrobial SPI film from renewable resources.

关键词： Soy protein isolate mandelic acid fermentation film tensile properties antimicrobial properties

Implementation of Hybrid Deep Reinforcement Learning Technique for Speech Signal Classification

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Computer Systems Science & Engineering 2023年第7期46卷 43-56页

作者： R.Gayathri k.Sheela Sobana rani Department of Electronics and Communication Engineering Sri Ramakrishna Institute of TechnologyCoimbatore641020India Department of Electrical and Electronics Engineering Sri Ramakrishna Institute of TechnologyCoimbatore641020India

Classification of speech signals is a vital part of speech signal processing *** the advent of speech coding and synthesis,the classification of the speech signal is made accurate and *** methods are considered inaccurate due to the uncertainty and diversity of speech signals in the case of real speech signal *** this paper,we use efficient speech signal classification using a series of neural network classifiers with reinforcement learning *** classification of speech signals,the study extracts the essential features from the speech signal using Cepstral *** features are extracted by converting the speech waveform to a parametric representation to obtain a relatively minimized data *** to improve the precision of classification,Generative Adversarial Networks are used and it tends to classify the speech signal after the extraction of features from the speech signal using the cepstral *** classifiers are trained with these features initially and the best classifier is chosen to perform the task of classification on new *** validation of testing sets is evaluated using RL that provides feedback to ***,at the user interface,the signals are played by decoding the signal after being retrieved from the classifier back based on the input *** results are evaluated in the form of accuracy,recall,precision,f-measure,and error rate,where generative adversarial network attains an increased accuracy rate than other methods:Multi-Layer Perceptron,Recurrent Neural Networks,Deep belief Networks,and Convolutional Neural Networks.

关键词： Neural network(NN) reinforcement learning(RL) cepstral coefficient speech signal classification