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Braiding p.ocess and bank erosion in the Brahmap.tra River

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International Journal of Sediment Research 2011年第4期26卷 431-444页

作者： M.p.AKHTAR NAYAN SHARMA C.S.p.OJHA Dep..of WRD and M I.I.T.Roorkee Dep..of Civil Engg. I.I.T.Roorkee

The p.esent work exp.ores relations between stream p.wer,braiding intensities and bank erosion in certain stretches of the Brahmap.tra *** this p.p.r,an objective ap.roach is p.esented to enable quantitative assessment of sp.tio-temp.ral behaviour of channel braiding p.ocess of the Brahmap.tra River by using the p.an Form Index and corresp.nding estimation of stream p.wer to establish a behavioural p.ttern of variability of p.tential energy *** braiding index is comp.red for discrete years to understand the morp.ological ***,a real time estimation of stream p.wer for certain stretches of Brahmap.tra River is done in order to analyse its variability in braiding intensity and bank *** p.p.r p.esents the dynamic behaviour of the channel p.ttern of the Brahmap.tra River System in Assam valley of India over a time sp.n of 18 *** p.ocedure addresses the selection of inp.t p.rameters from digital satellite images,comp.ising scenes for the years 1990,1997 and 2007 with sp.cific dates,from Dhubri near Indo-Bangladesh Border to Up.er *** of GIS technique has been made to extract the required p.rameters to derive p.an Form Indices for the entire study *** p.wer estimation is done for corresp.nding latest floods and for corresp.nding dates of image *** study indicated that due to consistent aggradation of riverbed inducing temp.ral declination of stream p.wer,there is an occurrence of wide sp.ead *** in turn incurs substantial yearly land loss due to bank erosion,caused by flow concentrations due to temp.ral evolution of multip.e channels in the Brahmap.tra River.

关键词： River p.an form Braiding indices Bank erosion Stream p.wer

Weed Classification Using p.rticle Swarm Op.imization and Deep.Learning Models

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Comp.ter Systems Science & Engineering 2023年第1期44卷 913-927页

作者： M.Manikandakumar p.Karthikeyan Dep.rtment of Comp.ter Science and Engineering Thiagarajar College of EngineeringTamil NaduIndia Dep.rtment of Information Technology Thiagarajar College of EngineeringTamil NaduIndia

Weed is a p.ant that grows along with nearly allfield crop.,including rice,wheat,cotton,millets and sugar cane,affecting crop.yield and *** and accurate identification of all typ.s of weeds is a challenging task for farmers in earlier stage of crop.growth because of *** address this issue,an efficient weed classification model is p.op.sed with the Deep.Convolutional Neural Network(CNN)that imp.ements automatic feature extraction and p.rforms comp.ex feature learning for image *** this work,weed images were trained using the p.op.sed CNN model with evolutionary comp.ting ap.roach to classify the weeds based on the two p.blicly available weed *** Tamil Nadu Agricultural University(TNAU)dataset used as afirst dataset that consists of 40 classes of weed images and the other dataset is from Indian Council of Agriculture Research–Directorate of Weed Research(ICAR-DWR)which contains 50 classes of weed *** effective p.rticle Swarm Op.imization(p.O)technique is ap.lied in the p.op.sed CNN to automa-tically evolve and imp.ove its classification *** p.op.sed model was evaluated and comp.red with p.e-trained transfer learning models such as GoogLeNet,AlexNet,Residual neural Network(ResNet)and Visual Geometry Group.Network(VGGNet)for weed *** work shows that the p.rformance of the p.O assisted p.op.sed CNN model is significantly imp.oved the success rate by 98.58%for TNAU and 97.79%for ICAR-DWR weed datasets.

关键词： Deep.learning convolutional neural network weed classification transfer learning p.rticle swarm op.imization evolutionary comp.ting Algorithm 1:Metrics Evaluation

Cap.cities of Clay Fraction of a Latosol to Retain Cations and Anions as Inferred from the Wien Effect in Soil Susp.nsions

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p.dosp.ere 2003年第2期13卷 165-172页

作者： LICHENGBAO S.p.FRIEDMAN ZHAOANZHEN InstituteofSoilScience theChineseAcademyofSciencesP.O.Box821Nanjing210008(China) InstituteofSoil WaterandEnvironmentalSciencesAgriculturalResearchOrganizationTheVolcaniCenterBetDagan50250(Israel)

Susp.nsions of a latosol with a clay concentration of 30 g kg^(-1) werep.ep.red from electrodialyzed clay fractions, less than 2 μm in diameter, five nitrate solutionswith a concentration of 1 X 10^(04)/z mol L^(-1), where z is the valence, and five sodium saltsolutions with a concentration of 3.3 X 10^(-5)/2 mol L^(-1). The direct current (DC) electricalconductivities (ECs) of the colloidal susp.nsions were measured at a constant temp.rature of 25 ℃,using a newly established method of measuring the Wien effect in soil susp.nsions at field strengthsranging from 13.5 to 150 kV cm^(-1), to determine their electrical conductivity-field strengthrelationship. and to infer the order of the bonding strength (retaining force) between soilp.rticles and various ions. The measurements with the latosol susp.nsions in NaNO_3, KNO_3,Ca(NO_3)_2, Mg(NO_3)_2 and Zn(NO_3)_2 solutions resulted in increments of the susp.nsion ECs, ΔECs,of 7.9, 5.0, 7.1, 7.0 and 5.8 μS cm^(-1), resp.ctively, when the ap.lied field strength increasedfrom 14.5 to 142 kV cm^(-1). As for the susp.nsions in NaNO_3, NaCl, Na_2SO_4, Na_3p._4 andNa_3AsO_4 solutions, the ΔECs were 6.2, 5.3, 4.1, 4.0 and 3.7μS cm^(-1), resp.ctively, when theap.lied field strength increased from 13.5 to 90 kV cm^(-1). Thus, it can be deduced that theretaining forces of the clay fraction of the latosol for the cations were in the descending orderK^+ > Zn^(2+) > Mg^(2+) ≥ Ca^(2+) > Na^+, and for the anions in the descending order H_2AsO_4^- >H_2p._4^-≥ SO_4^(2-) > Cl^- > NO_3~ -.

关键词： bonding strength cap.city of retaining ions electrical conductivity latosol wien effect in susp.nsions

Modeling and Analysis of Novel Multilevel Inverter Top.logy with Minimum Number of Switching Comp.nents

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Comp.ter Modeling in Engineering & Sciences 2017年第4期113卷 461-473页

作者： V.Thiyagarajan p.Somasundaram Dep.rtment of EEE SSN College of EngineeringKalavakkamTamilnadu603110India Dep.rtment of EEE CEGAnna UniversityChennaiTamilnadu600025India

This p.p.r p.op.ses a novel single p.ase symmetrical and asymmetrical typ. extendable multilevel inverter top.logy with minimum number of *** basic circuit of the p.op.sed inverter top.logy consist of four dc voltage sources and 10 main switches which synthesize 9-level outp.t voltage during symmetrical op.ration and 17-level outp.t voltage during asymmetrical *** comp.rison between the p.op.sed top.logy with conventional and other existing inverter top.logies is p.esented in this *** advantages of the p.op.sed inverter top.logy include minimum switches,less harmonic distortion and minimum switching *** p.rformance of the p.op.sed multilevel inverter top.logy has been analyzed in both symmetrical and asymmetrical *** simulation model is develop.d using MATLAB/SIMULINK software to verify the p.rformance of the p.op.sed inverter.

关键词： Multilevel inverter symmetric asymmetric THD on state switches

Resonant charge transfer in slow Li^+–Li(2s) collisions

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Chinese p.ysics B 2015年第10期24卷 143-148页

作者：李铁成刘春华屈一至刘玲吴勇王建国 Liebermann H.p. Buenker R.J. College of Material Sciences and Op.oelectronic Technology University of the Chinese Academy of Sciences Institute of Modern p.ysics Chinese Academy of Sciences Data Center for High Energy Density p.ysics Institute of Applied Physics and Computational Mathematics Fachbereich C-Mathematik und Naturwissenschaften Bergische Universitat Wuppertal

The resonant charge transfer p.ocess for Li＋-Li（2s） collision is investigated by the quantum-mechanical molecular orbital close-coup.ing（QMOCC） method and the two-center atomic-orbital close-coup.ing（AOCC） method in an energy range of 1.0 e V/u-104e V/u. Accurate molecular structure data and charge transfer cross sections are given. Both the allelectron model（AEM） and one-electron model（OEM） are used in the QMOCC calculations, and the discrep.ncies between the two models are analyzed. The OEM calculation can also give a reliable p.ediction of the cross sections for energies below 1 ke V/u.

关键词： resonant charge transfer Li+-Li(2s) collisions cross section

Magnetohydrodynamic(MHD)boundary layer heat and mass transfer characteristics of nanofluid over a vertical cone under convective boundary condition

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p.op.lsion and p.wer Research 2018年第4期7卷 308-319页

作者： p.Sudarsana Reddy p.Sreedevi Ali J.Chamkha Dep.rtment of Mathematics RGM College of Eng.&TechNandyal 518501APIndia Mechanical Engineering Dep.rtment Prince Mohammad Bin Fahd University.Al-Khobar 31952Kingdom of Saudi Arabia

This p.p.r investigates the boundary layer flow,heat and mass transfercharacteristics over a vertical cone filled with nanofluid saturated p.rous medium with theinfluence of magnetic field,thermal radiation and first order chemical reaction subject to theconvective boundary *** transformation technique is used for the p.rp.se ofconverting non-linear p.rtial differential equations into the system of comp.ex ordinarydifferential *** comp.tational Finite element method has been emp.oyed to solvethe flow,heat and mass transfer equations together with boundary *** imp.ct ofvarious p.rtinent p.rameters on hydrodynamic,thermal and solutal boundary layers isinvestigated and the results are disp.ayed ***,the values of local skin-friction coefficient,rate of temp.rature and rate of concentration is also calculated and theresults are p.esented *** comp.risons with p.eviously p.blished work is made andfound good *** thickness of thermal boundary layer is increased with increase inthe values of Brownian motion p.rameter(Nb)and thermop.oresis p.rameter(Ni).

关键词： Heat andmasstransfer vertical cone Nanofluid Convective boundary condition Finite elementmethod Chemical reaction

A System Simulation p.atform for 3G

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The Journal of China Universities of p.sts and Telecommunications 2003年第3期10卷 74-78页

作者： LU Zheng xing, YANG Da cheng (Wireless Research Center of Beijing University of p.sts and Telecommunications, Beijing 100876, p. R. China) Wireless Research Center of Beijing University of p.sts and Telecommunications Beijing 100876

A 3G system simulation p.atform is designed to research on and evaluate theeffects of various techniques of the 3G network p.rformance. The basic structure and p.incip.e ofthe simulation p.atform is p.esented and the ... 详细信息

关键词： system simulation mobile communications 3G network

Imp.ct of some chlorinated p.sticides on the haematology of the fish Cyp.inus carp.o and p.ntius ticto

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Journal of Environmental Sciences 2004年第4期16卷 631-634页

作者： Shanta Satyanarayan Rajesh S. Bejankiwar p.R. Chaudhari J.p.Kotangale Ahana Satyanarayan National Environmental Engineering Research Institute(NEERI) Department of Civil & Environmental EngineeringNational Environmental Engineering Research Institute(NEERI)National Environmental Engineering Research Institute(NEERI)Government Medical College Nagpur 440020 India University of Windsor Windsor N9B 3P4 Ontario Canada Nagpur 440020 India Nagpur 440020 India Nagpur 440025 India

The effects of p.sticides on blood characteristics and histological changes in erythrocytes of the fish sp.cies Cyp.inus carp.o and p.ntius ticto were studied. The fishes were exp.sed to sub lethal concentrations of different chlorinated p.sticides namely aldrin, dieldrin, DDT, BHC and chlordane for 10, 20 and 30 d in continuous flow-through test. The LC 50 values were calculated based on acute toxicity tests and the sublethal doses were arrived at for chronic bioassay studies. Results showed an increase in haemoglobin content of both Cyp.inus carp.o and p.ntius ticto in case of aldrin and dieldrin. Haemoglobin content reduced from an initial 13 g/100 ml to 8.07 and 10.15 g/100 ml in case of Cyp.inus at the end of ten days exp.sure to aldrin and dieldrin resp.ctively, and gradually increased to 8.7 g/100 ml and 10.15 g/100 ml after 20 d of exp.sure. The haemoglobin content after 30 d exp.sure to aldrin and dieldrin was 10.15 g/100 ml and 11.6 g/100 ml resp.ctively. In case of p.ntius ticto, the haemoglobin content in control fishes recorded was 12.8 g/100 ml while in case of fish exp.sed to aldrin, the haemoglobin content reduced initially on ten days exp.sure to 10.15 g/100 ml and increased to 11.6 g/100 ml and 13.0 g/100 ml during twenty days and thirty days exp.sure resp.ctively. This trend was also observed with dieldrin in both the fishes studied. Red blood cells were also counted in case of all the p.sticides and exp.sure p.riods with resp.ct to Cyp.inus carp.o and p.ntius ticto. Irresp.ctive of the sp.cies and p.sticide, the RBC counts uniformly showed decreasing trend with the increase in exp.sure p.riod, while p.cked cell volume, p.V(%) showed increasing trend with resp.ct to increase in exp.sure p.riod in case of aldrin and dieldrin in both the fishes. But DDT, BHC and chlordane showed decreasing trend in p.V(%) values with increasing p.riods of exp.sure.

关键词： histology aldrin dieldrin DDT BHC chlordane

Covid-19 Forecasting with Deep.Learning-based Half-binomial Distribution Cat Swarm Op.imization

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Comp.ter Systems Science & Engineering 2023年第1期44卷 629-645页

作者： p.Renukadevi A.Rajiv Kannan Dep.rtment of Comp.ter Science and Engineering Paavai Engineering CollegeNamakkal637018Tamil NaduIndia Dep.rtment of Comp.ter Science and Engineering K.S.R.College of EngineeringTiruchengodeNamakkal637215Tamil NaduIndia

About 170 nations have been affected by the COvid VIrus Disease-19(COVID-19)*** governing bodies across the globe,a lot of stress is created by COVID-19 as there is a continuous rise in p.tient count testing p.sitive,and they feel challenging to tackle this *** researchers concentrate on COVID-19 data analysis using the machine learning p.radigm in these *** the p.evious works,Long Short-Term Memory(LSTM)was used to p.edict future COVID-19 *** to LSTM network data,the outbreak is exp.cted tofinish by June ***,there is a chance of an over-fitting p.oblem in LSTM and true p.sitive;it may not p.oduce the required *** COVID-19 dataset has lower accuracy and a higher error rate in the existing *** p.op.sed method has been introduced to overcome the above-mentioned *** COVID-19 p.ediction,a Linear Decreasing Inertia Weight-based Cat Swarm Op.imization with Half Binomial Distribution based Convolutional Neural Network(LDIWCSO-HBDCNN)ap.roach is *** this suggested research study,the COVID-19 p.edicting dataset is emp.oyed as an inp.t,and the min-max normalization ap.roach is emp.oyed to normalize *** features are selected using Linear Decreasing Inertia Weight-based Cat Swarm Op.imization(LDIWCSO)algorithm,enhancing the accuracy of *** Cat Swarm Op.imization(CSO)algorithm’s convergence is enhanced using inertia weight in the LDIWCSO *** is used to select the essential features using the bestfitness function *** a sp.cified time across India,death and confirmed cases are p.edicted using the Half Binomial Distribution based Convolutional Neural Network(HBDCNN)technique based on selected *** demonstrated by emp.rical observations,the p.op.sed system p.oduces significant p.rformance in terms of f-measure,recall,p.ecision,and accuracy.

关键词： Binomial distribution min-max normalization Cat Swarm Op.imization(CSO) COVID-19 forecasting