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MCWOA Scheduler:Modified Chimp-Whale Optimization Algorithm for Task Scheduling in Cloud Computing

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Computers, Materials & Continua 2024年第2期78卷 2593-2616页

作者： chirag chandrashekar pradeep krishnadoss vijayakumar kedalu poornachary Balasundaram Ananthakrishnan School of Computer Science and Engineering Vellore Institute of TechnologyChennai600127India Center for Cyber physical Systems School of Computer Science and EngineeringVellore Institute of TechnologyChennai600127India

Cloud computing provides a diverse and adaptable resource pool over the internet,allowing users to tap into various resources as *** has been seen as a robust solution to relevant challenges.A significant delay can hamper the performance of IoT-enabled cloud ***,efficient task scheduling can lower the cloud infrastructure’s energy consumption,thus maximizing the service provider’s revenue by decreasing user job processing *** proposed Modified Chimp-Whale Optimization Algorithm called Modified Chimp-Whale Optimization Algorithm(MCWOA),combines elements of the Chimp Optimization Algorithm(COA)and the Whale Optimization Algorithm(WOA).To enhance MCWOA’s identification precision,the Sobol sequence is used in the population initialization phase,ensuring an even distribution of the population across the solution ***,the traditional MCWOA’s local search capabilities are augmented by incorporating the whale optimization algorithm’s bubble-net hunting and random search mechanisms into MCWOA’s position-updating *** study demonstrates the effectiveness of the proposed approach using a two-story rigid frame and a simply supported beam *** outcomes reveal that the new method outperforms the original MCWOA,especially in multi-damage detection *** excels in avoiding false positives and enhancing computational speed,making it an optimal choice for structural damage *** efficiency of the proposed MCWOA is assessed against metrics such as energy usage,computational expense,task duration,and *** simulated data indicates that the new MCWOA outpaces other methods across all *** study also references the Whale Optimization Algorithm(WOA),Chimp Algorithm(CA),Ant Lion Optimizer(ALO),Genetic Algorithm(GA)and Grey Wolf Optimizer(GWO).

关键词： Cloud computing scheduling chimp optimization algorithm whale optimization algorithm

Effect of desiccation on viability and biochemical changes in knema attenuata seeds

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Journal of Forestry Research 2012年第4期23卷 703-706页

作者： Vinayachandra chandrashekar k.R. Department of Applied Botany Mangalore UniversityMangalagangothri-574199MangaloreKarnatakaIndia

We studied effect of desiccation on knema attenuata seeds in the laboratory conditions （28 ± 2℃） for 8 days. We also monitored biochemical changes during germination by following standard procedures. Seeds lost their viability in 8 days by decreasing to 18% of moisture content from its original value of 31%. The total sugar, protein and lipid contents decreased during seed ageing. An increase was noticed in the protease activity during desiccation. The phenolic content in seed exudates was increased during ageing. The result confirms the degradation of stored biomolecules in seeds during ageing. Desiccation sensitiv- ity and biochemical changes during dehydration confirm its recalcitrant nature.

关键词： ageing biochemical changes biomolecules germination knema attenuata moisture content

Seed storage behavior of knema attenuata, an endemic species of Western Ghats, India

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Journal of Forestry Research 2011年第4期22卷 611-614页

作者： Vinayachandra k. R. chandrashekar Department Applied Botany Mangalore University Mangalagangothri-574199 Mangalore Karnataka India

We performed desiccation and storage trials to better understand storage behavior of knema attenuata seeds. Mature seeds with moisture content （MC） of 31% exhibited 73% germination. During the period of desiccation （open lab condition） seeds with MC 23% showed 40% germination. After further drying to MC 21% germination was reduced to 16%. Complete loss in viability resulted when seed moisture was reduced to 18%. The seeds stored at -10℃, 0℃, 10℃ and 28±2℃ （open lab condition） lost their viability within 10 days. Seeds stored in sealed polythene hags and moist sand retained viability for more days than did seeds stored under all other storage conditions. Sensitivity of seeds to lower temperature and desiccation suggest that the storage behavior of k. attenuata seeds is recalcitrant. Seeds stored in moist conditions can, at best, be stored for a period of two months.

关键词： desiccation germination knema attenuata recalcitrant storage viability

kinetic Energy preserving and Entropy Stable Finite Volume Schemes for Compressible Euler and Navier-Stokes Equations

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Communications in Computational physics 2013年第10期14卷 1252-1286页

作者： praveen chandrashekar TIFR Center for Applicable Mathematics Bangalore 560065India

Centered numerical fluxes can be constructed for compressible Euler equations which preserve kinetic energy in the semi-discrete finite volume *** essential feature is that the momentum flux should be of the form ■ are any consistent approximations to the pressure and the mass *** scheme thus leaves most terms in the numerical flux unspecified and various authors have used simple *** we enforce approximate or exact entropy consistency which leads to a unique choice of all the terms in the numerical *** a consequence novel entropy conservative flux that also preserves kinetic energy for the semi-discrete finite volume scheme has been *** fluxes are centered and some dissipation has to be added if shocks are present or if the mesh is *** construct scalar artificial dissipation terms which are kinetic energy stable and satisfy approximate/exact entropy ***,we use entropy-variable based matrix dissipation flux which leads to kinetic energy and entropy stable *** schemes are shown to be free of entropy violating solutions unlike the original Roe *** hypersonic flows a blended scheme is proposed which gives carbuncle free solutions for blunt body *** results for Euler and Navier-Stokes equations are presented to demonstrate the performance of the different schemes.

关键词： Euler equation Navier-Stokes equation finite volumemethod kinetic energy preservation entropy conservation

On 3-Regular Tripartitions

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Acta Mathematica Sinica,English Series 2019年第3期35卷 355-368页

作者： chandrashekar ADIGA Ranganatha DASAppA Department of Studies in Mathematics University of Mysore Department of Mathematics School of Physical Sciences Central University of Karnataka

Abstract In this article,we investigate the arithmetic behavior of the function D_3(n)which counts the number of 3-regular tripartitions of *** example,we show that forα≥1 and n≥0,■and

关键词： Regular partitions congruences theta functions

Fuel properties and combustion characteristics of some promising bamboo species in India

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Journal of Forestry Research 2014年第2期25卷 471-476页

作者： Ritesh kumar N. chandrashekar Institute of Wood Science and Technology

We investigated the fuel characteristics of five important bamboo species viz., Dendrocalamus strictus, D. brandisii, D. stocksii, Bambusa bambos and B. balcooa. The selected species cover more than 85% of the total growing stock of bamboo in India. Basic density varied from 0.48 to 0.78 ***-3 among the bamboo species studied. Ash content, volatile matter content and fixed carbon content ranged between 1.4%-3.0%, 77.2%-80.8% and 17.6%-21.1%, respectively. Variation in calorific value （18.7-19.6 MJ-kg-l） was marginal. Fuel value index var- ied widely （586-2120） among bamboo species. The highest calorific value （19.6 ***＂l） and fuel value index （2120） were found in B. bal- cooa. Ash elemental analysis revealed that silica and potassium are the major ash forming minerals in bamboo biomass. Silica content ranged from 8.7% to 49.0%, while potassium ranged from 20.6% to 69.8%. We studied combustion characteristics under oxidizing atmosphere. Burning profiles of the samples were derived by applying the derivative thermo- gravimetric technique which is discussed in detail. The five bamboo species were different in their combustion behaviour, mainly due to differences in physical and chemical properties. We compare fuel prop- erties, ash elemental analysis and combustion characteristics of bamboo biomass with wood biomass of Eucalyptus hybrid （Eucalyptus tereticor- his × Eucalyptus camaldulensis）.

关键词： bamboo calorific value ash burning profile Thermogravimetric analysis

Wind-integration benefits of controlled plug-in electric vehicle charging

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Journal of Modern power Systems and Clean Energy 2017年第5期5卷 746-756页

作者： Sachin chandrashekar Yixian LIU Ramteen SIOSHANSI Department of Integrated Systems Engineering The Ohio State UniversityColumbusOHUSA

Flexibility in plug-in electric vehicle(pEV) charging can reduce the ancillary cost effects of wind variability and uncertainty on electric power systems. In this paper, we study these benefits of pEV charging, demonstrating that controlled pEV charging can reduce costs associated with wind uncertainty and variability. Interestingly, we show that the system does not require complete control of pEV-charging loads to mitigate the negative cost impacts of wind variability and uncertainty. Rather, pEV owners giving the system a two-hour window of flexibility in which to recharge their vehicles provides much of the benefits that giving full charging control does.

关键词： plug-in electric vehicle Controlled charging Wind integration Demand response Unit commitment and dispatch

A review on biomedical and dental applications of cerium oxide nanoparticles——Unearthing the potential of this rare earth metal

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Journal of Rare Earths 2023年第11期41卷 1645-1661,I0001页

作者： Lalitha S Jairam Akshatha chandrashekar T.Niranjana prabhu Sunil Babu kotha M.S.Girish Indira Mysuru Devraj M.Dhanya Shri k.prashantha Department of pediatric and preventive Dentistry Faculty of Dental SciencesM.S.Ramaiah University of Applied SciencesNew BEL RoadMSR NagarBangalore560054India Department of Chemistry Faculty of Mathematical and Physical SciencesM.S.Ramaiah University of Applied SciencesNo.470-PIV PhasePeenya Industrial AreaBangalore560058India Department of preventive Dentistry Pediatric Dentistry DivisionCollege of DentistryRiyadh Elm UniversityRiyadhKingdom of Saudi Arabia Department of pediatric and preventive Dentistry JSS Dental College&HospitalJSS Academy of Higher Education&ResearchMysuruIndia Center for Research and Innovation Adichunchanagiri School of Natural SciencesAdichunchanagiri UniversityBGSITB.G.Nagara571448India

Nanotechnology deals with particles ranging from 1 to 100 nm in size called as *** nano particles exhibit unique properties which find an application in many industries and medical fields.A growing body of evidence points out the newer developing technologies adopted in the field of medicine in terms of target therapies,imaging systems,drug deliveries,*** through the incorporation of *** oxide nanoparticles have gained attention in the last decade due to exceptional properties such as redox activity,biofilm inhibition,antibacterial activity,anti-inflammatory activity,*** method of synthesis of cerium oxide nanoparticles plays a pivotal role in its *** exhibits redox properties and catalytic activity and thus has found its use in biomedical *** are incorporated into dental materials such as restorative cements/sealants,adhesives,and denture systems to improve their *** the various metal oxide nanoparticles,ce rium oxide nanoparticles(CeO_(2)Nps)are known to exhibit lower toxicity to mammalian cells and possess unique antibacterial *** addition,they exhibit potent properties such as antitumor,antiinflammatory,antibacterial activities,and functions as an ***_(2)Nps have excellent scavenging properties for reactive oxygen species,which is why they are being considered for therapeutic *** this review,various methods of synthesis of CeO_(2)Nps are *** factors that determine the particle size and morphology of these materials are important for biomedical and dental *** is given to preparation methods and variables such as calcination temperature,which have a profound effect on particle size and *** article also presents various applications of CeO_(2)Nps in the biomedical and dental fields.

关键词： Cerium oxide nanoparticles Synthesis Antibacterial activity Biomedical applications Dental applications Rare earths

Single-Step Arbitrary Lagrangian-Eulerian Discontinuous Galerkin Method for 1-D Euler Equations

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Communications on Applied Mathematics and Computation 2020年第4期2卷 541-579页

作者： Jayesh Badwaik praveen chandrashekar Christian klingenberg Department of Mathematics University of WürzburgWürzburgGermany TIFR Center for Applicable Mathematics BangaloreIndia

We propose an explicit,single-step discontinuous Galerkin method on moving grids using the arbitrary Lagrangian-Eulerian approach for one-dimensional Euler *** grid is moved with the local fluid velocity modified by some smoothing,which is found to con-siderably reduce the numerical dissipation introduced by Riemann *** scheme preserves constant states for any mesh motion and we also study its positivity preservation *** grid refinement and coarsening are performed to maintain the mesh qual-ity and avoid the appearance of very small or large ***,higher order methods are developed and several test cases are provided to demonstrate the accuracy of the proposed scheme.

关键词： Discontinuous Galerkin method Moving meshes Arbitrary Lagrangian-Eulerian Euler equations