检索结果-南通市图书馆

Computer Systems Science & Engineering 2023年第6期45卷 2869-2883页

作者： S.Lavanya N.m.saravanakumar Sri Krishna College of Engineering and Technology Coimbatore641008TamilnaduIndia m.Kumarasamy College of Engineering Karur639113Tamil NaduIndia

many cutting-edge methods are now possible in real-time commercial settings and are growing in popularity on cloud *** incorporating new,cutting-edge technologies to a larger extent without using more infrastructures,the information technology platform is anticipating a completely new level of *** following concepts are proposed in this research paper:1)A reliable authentication method Data replication that is optimised;graph-based data encryp-tion and packing colouring in Redundant Array of Independent Disks(RAID)*** the data centre,data is encrypted using crypto keys called Key *** keys are produced using the packing colouring method in the web graph’s jump *** order to achieve space efficiency,the replication is carried out on optimised many servers employing packing *** would be thought that more connections would provide better *** study provides an innovative architecture with robust security,enhanced authentication,and low cost.

关键词： Graph-based encryption replication encryption packing coloring jump graph web graph stream cipher key stream

An Efficient On-Demand Virtual machine migration in Cloud Using Common Deployment model

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computer Systems Science & Engineering 2022年第7期42卷 245-256页

作者： C.saravanakumar R.Priscilla B.Prabha A.Kavitha m.Prakash C.Arun Department of Information Technology St.Joseph’s Institute of TechnologyChennai600119India Department of Information Technology Loyola-ICAM College of Engineering and TechnologyChennai600034India Department of Electronics and Communication Engineering M.Kumarasamy College of EngineeringKarur639113India Data Science and Analytics Center Karpagam College of EngineeringCoimbatore641032India Department of Electronics and Communication Engineering R.M.K College of Engineering and TechnologyChennai601206India

Cloud Computing provides various services to the customer in aﬂex-ible and reliable *** machines(Vm)are created from physical resources of the data center for handling huge number of requests as a *** tasks are executed in the Vm at the data center which needs excess hosts for satis-fying the customer *** Vm migration solves this problem by migrating the Vm from one host to another host and makes the resources available at any *** process is carried out based on various algorithms which follow a pre-deﬁned capacity of source Vm leads to the capacity issue at the destination *** proposed Vm migration technique performs the migration process based on the request of the requesting host *** technique can perform in three ways namely single Vm migration,multiple Vm migration and Cluster Vm *** Deployment manager(CDm)is used to support through negotiation that happens across the source host and destination host for providing the high quality service to their *** Vm migration requests are handled with an exposure of the source host *** proposed analysis also uses the retired instructions with execution by the hypervisor to achieve high *** objective of the proposed technique is to perform a Vm migration process based on the prior knowledge of the resource availability in the target Vm.

关键词： Cloud computing virtualization hypervisor Vmmigration virtual machine

Robust H_∞ control for uncertain markovian jump systems with mixed delays

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics B 2016年第7期25卷 108-113页

作者： R saravanakumar m Syed Ali Department of mathematics Thiruvalluvar University

We scrutinize the problem of robust H∞control for a class of markovian jump uncertain systems with interval timevarying and distributed delays. The markovian jumping parameters are modeled as a continuous-time finite-state markov chain. The main aim is to design a delay-dependent robust H∞control synthesis which ensures the mean-square asymptotic stability of the equilibrium point. By constructing a suitable Lyapunov–Krasovskii functional（LKF）, sufficient conditions for delay-dependent robust H∞control criteria are obtained in terms of linear matrix inequalities（LmIs）. The advantage of the proposed method is illustrated by numerical examples. The results are also compared with the existing results to show the less conservativeness.

关键词： linear matrix inequality Lyapunov method markovian jumping parameters robust H∞ control

Improved delay-dependent robust H_∞ control of an uncertain stochastic system with interval time-varying and distributed delays

在线全文

学校读者我要写书评

暂无评论

Chinese Physics B 2014年第12期23卷 5-13页

作者： m.Syed Ali R.saravanakumar Department of mathematics Thiruvalluvar University

In this paper, the robust H∞control problem for a class of stochastic systems with interval time-varying and distributed delays is discussed. The system under study involves parameter uncertainty, stochastic disturbance, interval time-varying,and distributed delay. The aim is to design a delay-dependent robust H∞control which ensures the robust asymptotic stability of the given system and to express it in the form of linear matrix inequalities（LmIs）. Numerical examples are given to demonstrate the effectiveness of the proposed method. The results are also compared with the existing results to show its conservativeness.

关键词： distributed delay interval time-varying delay H∞control linear matrix inequality(LmI) stochastic systems

Augmented Lyapunov approach to H_∞ state estimation of static neural networks with discrete and distributed time-varying delays

在线全文

学校读者我要写书评

暂无评论

Chinese Physics B 2015年第5期24卷 140-147页

作者： m.Syed Ali R.saravanakumar Department of mathematics Thiruvalluvar University

This paper deals with H∞ state estimation problem of neural networks with discrete and distributed time-varying delays. A novel delay-dependent concept of H∞ state estimation is proposed to estimate the H∞ performance and global asymptotic stability of the concerned neural networks. By constructing the Lyapunov-Krasovskii functional and using the linear matrix inequality technique, sufficient conditions for delay-dependent H∞ performances are obtained, which can be easily solved by some standard numerical algorithms. Finally, numerical examples are given to illustrate the usefulness and effectiveness of the proposed theoretical results.

关键词： distributed delay H∞ state estimation neural networks stability analysis

Robust H_∞ control of uncertain systems with two additive time-varying delays

在线全文

学校读者我要写书评

暂无评论

Chinese Physics B 2015年第9期24卷 25-34页

作者： m.Syed Ali R.saravanakumar Department of mathematics Thiruvalluvar University

This paper is concerned with the problem of delay-dependent robust H∞control for a class of uncertain systems with two additive time-varying delays. A new suitable Lyapunov–Krasovskii functional（LKF） with triple integral terms is constructed and a tighter upper bound of the derivative of the LKF is derived. By applying a convex optimization technique, new delay-dependent robust H∞stability criteria are derived in terms of linear matrix inequalities（LmI）. Based on the stability criteria, a state feedback controller is designed such that the closed-loop system is asymptotically ***, numerical examples are given to illustrate the effectiveness of the proposed method. Comparison results show that our results are less conservative than the existing methods.

关键词： additive time-varying delays Lyapunov method H∞ control linear matrix inequality

Effect of imidazole based polymer blend electrolytes for dye-sensitized solar cells in energy harvesting window glass applications

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Chemical Engineering 2019年第11期27卷 2807-2814页

作者： K.m.manikandan A.Yelilarasi S.S.saravanakumar P.Senthamaraikannan Anish Khan Abdullah m.Asiri Department of Physics Kamaraj College of Engineering and TechnologyK.VellakulamVirudhunagar625701 MaduraiTamil NaduIndia Department of mechanical Engineering Kamaraj College of Engineering and TechnologyK.VellakulamVirudhunagar625701 MaduraiTamil NaduIndia Chemistry Department Faculty of ScienceKing Abdulaziz UniversityJeddah 21589Saudi Arabia Center of Excellence for Advanced materials Research King Abdulaziz UniversityJeddah 21589P.O.Box 80203Saudi Arabia

The exploration of polymer electrolyte in the field of dye sensitized solar cell(DSSC) can contribute to increase the invention of renewable energy applications. In the present work, the influence of imidazole on the poly(vinylidene fluoride)(PVDF)–poly(methyl methacrylate)(PmmA)–Ethylene carbonate(EC)–KI–I2 polymer blend electrolytes has been evaluated. The different weight percentages of imidazole added into polymer blend electrolytes have been prepared by solution casting. The prepared films were characterized by Fourier transform infrared spectroscopy(FTIR), X-ray diffraction(XRD), thermogravimetric analysis(TGA), UV–visible spectra, photoluminescence spectra and impedance spectroscopy. The surface roughness texture of the film was analyzed by atomic force microscopy(AFm). The ionic conductivity of the optimized polymer blend electrolyte was determined by impedance measurement, which is 1.95 × 10-3 S·cm-1 at room temperature. The polymer electrolyte containing 40 wt% of imidazole content exhibits the highest photo-conversion efficiency of 3.04%under the illumination of 100 m W·cm-2. moreover, a considerable enhancement in the stability of the DSSC device was demonstrated.

关键词： Polymer blend electrolyte Imidazole Dye-sensitized solar cell Surface roughness Ionic conductivity

Benthic macrofaunal Assemblage in the Arid Zone mangroves of Gulf of Kachchh-Gujarat

在线全文

学校读者我要写书评

暂无评论

Journal of Ocean University of China 2007年第3期6卷 303-309页

作者： A. saravanakumar J. Sesh Serebiah G. A. Thivakaran m. Rajkumar CAS in marine Biology Annamalai UniversityParangipettaiIndia Gujarat Institute of Desert Ecology BhujGujaratIndia

The total benthic macrofauna consisting of 62 species in 5 groups,viz. crustaceans(18),gastropods(17),bivalves(16),polychaetes(9) and fishes(2),was recorded in western Kachchh mangroves near Gujarat. The population densities of benthic macro-fauna ranged from 424 to 2393 ind.m-2,the diversity ranged from 1.84 to 2.45 bits ind.-1,the richness varied between 0.82 and 0.98,and the evenness varied between 0.64 and 0.81. Two maximum diversity values were recorded during winter and summer. The salin-ity ranged from 34 to 44,temperature varied between 17 and 37 ℃,and the acidity ranged from 7 to 8.9.

关键词：广动物区系红树林干旱海湾

Fishery Resources in Arid Zone mangroves in Gulf of Kachchh, Gujarat, Northwest Coast of India

在线全文

学校读者我要写书评

暂无评论

Journal of Ocean University of China 2009年第3期8卷 233-240页

作者： A. saravanakumar m. Rajkumar J. Sesh Serebiah G. A. Thivakaran Centre of Advanced Study in marine Biology Annamalai University marine Studies and Coastal Resource management Madras Christian College Gujarat Institute of Desert Ecology

The finfish and shellfish resources were assessed quantitatively and qualitatively in regard to their abundance in creek waters at three sites within a period of two years, from January 1999 to December 2000, in the western mangrove areas of Kachchh. The catch rate varied from 0.69 to 6.99 kg h-1. It was low during monsoon (July to October), which could be due to the freshwater-flow-induced salinity reduction in all the sites. Among 38 species recorded, 5 were shellfish and 33 were finfish. The spawning period of fishes was found to be during summer and early monsoon period (may to August). Surface water temperatures varied from 17 ℃ to 37 ℃. Salinity values varied from 34 to 44 and the pH ranged between 7 and 8.9. Variation in dissolved oxygen content was from 3.42 to 5.85 mL L-1. The high fishery densities in these semi arid mangrove creek areas were recorded during monsoon and early winter season.

关键词：渔业资源红树林干旱区海湾印度海岸西北溶解氧含量