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Route planning for Autonomous Transmission of Large Sport Utility Vehicle

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Computer Systems Science & Engineering 2023年第4期45卷 659-669页

作者： V.A.vijayakumar J.Shanthini S.Karthik K.Srihari SNS College of Technology Coimbatore641035TamilnaduIndia

The autonomous driving aims at ensuring the vehicle to effectively sense the environment and use proper strategies to navigate the vehicle without the interventions of ***,there exist a prediction of the background scenes and that leads to discontinuity between the predicted and planned *** optimal prediction engine is required that suitably reads the background objects and make optimal *** this paper,the author(s)develop an autonomous model for vehicle driving using ensemble model for large Sport Utility Vehicles(SUVs)that uses three different modules involving(a)recognition model,(b)planning model and(c)prediction *** study develops a direct realization method for an autonomous vehicle *** direct realization method is designed as a behavioral model that incorporates three different modules to ensure optimal autonomous *** behavioral model includes recognition,planning and prediction modules that regulates the input trajectory processing of input video datasets.A deep learning algorithm is used in the proposed approach that helps in the classification of known or unknown objects along the line of *** model is compared with conventional deep learning classifiers in terms of recall rate and root mean square error(RMSE)to estimate its *** results on different traffic environment shows that the Ensemble Convolutional Network Reinforcement Learning(E-CNN-RL)offers increased accuracy of 95.45%,reduced RMSE and increased recall rate than existing Ensemble Convolutional Neural Networks(CNN)and Ensemble Stacked CNN.

关键词： Artificial intelligence information system security and privacy fuzzy modelling deep neural networks machine learning reinforcement learning CNN SUV

Review of engineering techniques in chaotic coded aperture imagers

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Light(Advanced Manufacturing) 2022年第4期3卷 113-125页

作者： vijayakumar Anand Joseph Rosen Saulius Juodkazis Optical Sciences Centre and ARC Training Centre in Surface Engineering for Advanced Materials(SEAM) School of ScienceSwinburne University of TechnologyHawthornVIC 3122Australia Institute of physics University of Tartu50411 TartuEstonia School of Electrical and Computer Engineering Ben-Gurion University of the NegevP.O.Box 653Beer-Sheva 8410501Israel Tokyo Tech World Research Hub Initiative(WRHI) School of Materials and Chemical TechnologyTokyo Institute of Technology2-12-1OokayamaMegurokuTokyo 152-8550Japan

Coded aperture imaging(CAI)is a technique to image three-dimensional scenes with special controlled *** this review,we survey several recently proposed techniques to control the parameters of CAI by engineering the aperture of the *** prime architectures of these indirect methods of imaging are *** each design,we mention the relevant application of the CAI recorders and summarize this overview with a general perspective on this research topic.

关键词： Coded aperture imaging Holography Chaos engineering Incoherent optics Diffractive optics

In vitro antiplasmodial activity of methanolic extracts from seaweeds of South West Coast of India

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Asian pacific Journal of Tropical Medicine 2011年第11期4卷 862-865页

作者： S Ravikumar G Ramanathan M Gnanadesigan A Ramu V vijayakumar School of Marine Sciences Department of Oceanography and Coastal Area StudiesAlagappa UniversityThondi CampusThondi - 623 409Ramanathapuram DistrictTamil NaduIndia Department of Microbiology V.H.S.N.College.Virudhunagar DistrictTamil NaduIndia School of Chemistry Department of Inorganic ChemistryMadurai Kamaraj UniversityMadurai DistrictTamil NaduIndia

Objective:To identify the in vitro antiplasmodial activity of seaweed plants against plasmodium falciparum ***:A total of eight seaweeds were collecled from Kanvakumari district,Tainilnadu,*** in vitro antiplasmodial activity was performed in 96 well plates against plasmodium falciparum,and preliminary phytochemcial analysis were performed for the ***:Of the selected plants Enteromorpha intestinalis(2.61%) showed maximum percentage of *** minimum concentration of inhibitory(IC_(50)) value was observed with Chaetomorpha antennina[(26.37±4.14)μg/ml.]further,the positive controls such as chloroquine and artemether showed antiplasmodial activities(IC_(50)) with(19.10±5.93) and(6.03±0.21)μg/mL concentrations,*** preliminary phytochemical analysis of the seaweed extracts showed a variety of phytochemical constituents such as carboxylic acids,phenols,protein, resins,steroids and ***:The antiplasmodial activity of the seaweed extract might due to the presence of sugars and phenolic *** the present findings,it is concluded that,the seaweed extract of Chaetomorpha antennina can be further used as a putative antiplasmodial drugs in near future.

关键词： Antiplasmodial activity IC_(50) phytochemical Seaweeds plasmodium falciparum

Effectiveness of sodium silicate as gangue depressants in iron ore slimes flotation

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International Journal of Minerals,Metallurgy and Materials 2011年第5期18卷 515-522页

作者： Danda Srinivas Rao Tadiparthi Venkata vijayakumar Sripada Subba Rao Swarna prabhakar Guntamadugu Bhaskar Raju National Metallurgical Laboratory-Madras Centre Council of Scientific and Industrial Research-Madras ComplexChennai 600 113India

The recovery of iron from the screw classifier overflow slimes by direct flotation was studied. The relative effectiveness of sodium silicates with different silica-to-soda mole ratios as depressants for silica and silicate bearing minerals was investigated. Silica-to-soda mole ratio and silicate dosage were found to have significant effect on the separation efficiency. The results show that an increase of Fe content in the concentrate is observed with concomitant reduction in SiO2 and A1203 levels when a particular type of sodium silicate at a proper dosage is used. The concentrate of 58.89wt% Fe, 4.68wt% SiO2, and 5.28wt% A1203 with the weight recovery of 38.74% and the metal recovery of 41.13% can be obtained from the iron ore slimes with 54.44wt% Fe, 6.72wt% SiO2, and 6.80wt% A1203, when NazSiO3 with a silica-to-soda mole ratio of 2.19 is used as a depressant at a feed rate of 0.2 kg/t.

关键词： iron ores sodium silicate depressants flotation

A Chaotic pulse Train Generator Based on Henon Map

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Intelligent Automation & Soft Computing 2023年第7期37卷 1197-1207页

作者： Babu H.Soumya N.vijayakumar K.Gopakumar College of Engineering Trivandrum695016India Government Engineering College Barton HillTrivandrum695035India ApJ Abdul Kalam Technological University Trivandrum695016India

The Henon map forms one of the most-studied two-dimensional discrete-time dynamical systems that exhibits chaotic *** Henon map takes a point(Xn,Yn)in the plane and maps it to a new point(Xn+1,Yn+1).In this paper,a chaotic pulse generator based on the chaotic Henon map is *** consists of a Henon map function subcircuit to realize the Henon map and another subcircuit to perform the iterative *** Henon map subcircuit comprises operational amplifiers,multipliers,delay elements and resistors,whereas,the iterative subcircuit is implemented with a simple design that comprises of an edge forming circuit followed by a monostable multivibrator and a voltage controlled switch without the use of any clock *** proposed design can be used to realize the Henon map and also to generate a chaotic pulse train,with a controllable time interval and pulse *** proposed circuit is implemented and simulated using Multisim 13.0 and MATLAB *** chaotic nature of the generated pulse train and also the time interval between the consecutive pulses is verified by the calculation of its Lyapunov exponents.

关键词： Chaos iterated maps henon map chaotic pulse train lyapunov exponents

And-hyperglycemic activity of leaves extract of Hyptis suavcolens *** in streptozotocin induced diabetic rats

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Asian pacific Journal of Tropical Medicine 2011年第9期4卷 689-693页

作者： Shanti Bhushan Mishra Amita Verma Alok Mukerjee vijayakumar M United Institute of pharmacy UCERAllahabadIndia Faculty of Health Medical SciencesIndigenous & Alernative Systems of MedicineShiatsAllahabadIndia United Institute of pharmacy UCER.AllahabadIndia Ethnopharmacology Division.National Botanical Research Institute LucknowIndia

Objective:To evaluate the antihyperglycemic activity of leaves of Hyptis suaveolens using streptozotocin ***:Hyptis suaveolens extract(HSE) 250 and 500 mg/kg body weight was administered orally to streptozotocin induced diabetes,once daily for 21 ***:A significant reduction in blood glucose was observed in diabetic animals treated with HSE at different doses when compared with diabetic *** of triglyceride,total cholesterol,low density *** low density lipoprotein were decreased while administering HSE at different doses,compared with their control values in diabetic ***:Our results show that HSE possesses significant antihyperglycemic activity which might be attributed to stimulating effects on glucose utilization and antioxidant enzyme.

关键词： Hyptis suaveolens Antidiabetic Ethanolic extract Glibenclamide Streptozotocin

The Variability of the Interannual Oscillations of the Indian Summer Monsoon Rainfall

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Advances in Atmospheric Sciences 1995年第1期12卷 95-102页

作者： R. vijayakumar J. R. Kulkarni Indian Institute of Tropical Meteorology Pune-411008 India Indian Institute of Tropical Meteorology Pune-411008 India

A new method of analysis namely, Singular Spectrum Analysis (SSA) is applied to the Indian Summer Monsoon (June-September) Rainfall (ISMR) series. The method is efficient in extracting the statistically significant oscillations with periods 2.8 and 2.3 year from the white noise of the ISMR series. The study shows that 2.8 / 2.3 year cycle captures the variability of the ISMR related to Southern Oscillation / Quasi Biennial Oscillation. The temporal structure of these oscillations show that these are in phase in extreme (excess and drought) monsoon conditions as well as in El Nino Southern Oscillation (ENSO) years. Both these oscillations show minimum variability during the period 1920-1940 and there is an increasing trend in the variability of these oscillations in the recent decades. The study enables to obtain pure signal consisting of reconstructed time series using these two Oscillations, from the original white noise series.

关键词： Singular Spectrum Analysis Monsoon Variability.

Towards an all-vanadium redox flow battery with higher theoretical volumetric capacities by utilizing the VO^2＋/V^3＋ couple

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Journal of Energy Chemistry 2018年第5期27卷 1381-1385页

作者： Wentao Duan Bin Li Dongping Lu Xiaoliang Wei Zimin Nie vijayakumar Murugesan James p. Kizewski Aaron Hollas David Reed Vincent Sprenkle Wei Wang pacific Northwest National Laboratory RO. Box 999 Richland Washington 99352 United States

An all-vanadium redox flow battery with V（IV） as the sole parent active species is developed by accessing the VO2＋/V3＋ redox couple. These batteries, referred to as V4RBs, possess a higher theoretical volumetric c... 详细信息

关键词： Vanadium Redoxreactions Redox flow battery Energy density Cu

Covalently Bonded Ni Sites in Black phosphorene with Electron Redistribution for Efficient Metal‑Lightweighted Water Electrolysis

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Nano-Micro Letters 2024年第6期16卷 233-245页

作者： Wenfang Zhai Ya Chen Yaoda Liu Yuanyuan Ma paranthaman vijayakumar Yuanbin Qin Yongquan Qu Zhengfei Dai State Key Laboratory for Mechanical Behavior of Materials Xi’an Jiaotong UniversityXi’an 710049People’s Republic of China School of Chemistry and Chemical Engineering Northwestern Polytechnical UniversityXi’an 710072People’s Republic of China SSN Research Centre SSN College of EngineeringChennaiTamil Nadu 603110India

The metal-lightweighted electrocatalysts for water splitting are highly desired for sustainable and economic hydrogen energy deployments,but *** this work,a low-content Ni-functionalized approach triggers the high capability of black phosphorene(Bp)with hydrogen and oxygen evolution reaction(HER/OER)*** a facile in situ electro-exfoliation route,the ionized Ni sites are covalently functionalized in Bp nanosheets with electron redistribution and controllable metal *** is found that the as-fabricated Ni-Bp electrocatalysts can drive the water splitting with much enhanced HER and OER *** 1.0 M KOH electrolyte,the optimized 1.5 wt%Nifunctionalized Bp nanosheets have readily achieved low overpotentials of 136 mV for HER and 230 mV for OER at 10 mA cm^(−2).Moreover,the covalently bonding between Ni and p has also strengthened the catalytic stability of the Ni-functionalized Bp electrocatalyst,stably delivering the overall water splitting for 50 h at 20 mA cm^(−2).Theoretical calculations have revealed that Ni–p covalent binding can regulate the electronic structure and optimize the reaction energy barrier to improve the catalytic activity *** work confirms that Ni-functionalized Bp is a suitable candidate for electrocatalytic overall water splitting,and provides effective strategies for constructing metal-lightweighted economic electrocatalysts.

关键词： Black phosphorus Water electrolysis Electrocatalyst Electron redistribution Covalent functionalization