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Efect of Varying Dzyaloshinskii–moriya Interaction on the Bistable Nano-Scale Soliton Switching

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Communications in Theoretical Physics 2013年第12期60卷 658-662页

作者： L.Kavitha m.saravanan V.Senthilkumar D.Gopi Department of Physics Periyar University The Abdus Salam International Centre for Theoretical Physics Center for Nanoscience and Nanotechnology Periyar University Department of Chemistry Periyar University

The effect of Dzyaloshinskii-moriya （D-m） interaction on the bistable nano-scale soliton switching offers the possiblity of developing a new innovative approach for data storage technology. The dynamics of Heisenberg ferromagnetic spin system is expressed in terms of generalized inhomogeneous higher order nonlinear Schr6dinger （NLS） equation. The bistable soliton switching in the ferromagnetic medium is established by solving the associated coupled evolution equations for amplitude and velocity of the soliton using the fourth order Runge-Kutta method numerically.

关键词： solitons magnetization reversal mechanisms perturbation theory exchange interactions

Intelligent Satin Bowerbird Optimizer Based Compression Technique for Remote Sensing Images

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Computers, materials & Continua 2022年第8期72卷 2683-2696页

作者： m.saravanan J.Jayanthi U.Sakthi R.Rajkumar Gyanendra Prasad Joshi L.minh Dang Hyeonjoon moon Department of Networking and Communications School of ComputingSRM Institute of Science and TechnologyKattankulathur603203India Department of Computer Science and Engineering Sona College of TechnologySalem636005India Department of Computer Science and Engineering Saveetha School of EngineeringSIMATSChennai602105India Department of Electronics and Instrumentation Engineering Kongu Engineering CollegePerundurai638060India Department of Computer Science and Engineering Sejong UniversitySeoul05006Korea

Due to latest advancements in the field of remote sensing,it becomes easier to acquire high quality images by the use of various satellites along with the sensing *** the massive quantity of data poses a challenging issue to store and effectively transmit the remote sensing ***,image compression techniques can be utilized to process remote sensing *** this aspect,vector quantization(VQ)can be employed for image compression and the widely applied VQ approach is Linde–Buzo–Gray(LBG)which creates a local optimum codebook for image *** process of constructing the codebook can be treated as the optimization issue and the metaheuristic algorithms can be utilized for resolving *** this motivation,this article presents an intelligent satin bowerbird optimizer based compression technique(ISBO-CT)for remote sensing *** goal of the ISBO-CT technique is to proficiently compress the remote sensing images by the effective design of ***,the ISBO-CT technique makes use of satin bowerbird optimizer(SBO)with LBG approach is *** design of SBO algorithm for remote sensing image compression depicts the novelty of the *** showcase the enhanced efficiency of ISBO-CT approach,an extensive range of simulations were applied and the outcomes reported the optimum performance of ISBO-CT technique related to the recent state of art image compression approaches.

关键词： Remote sensing images image compression vector quantization sand bowerbird optimizer metaheuristics space savings

Preparation and optimization of tocotrienol rich fraction(TRF)-loaded niosomes

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Asian Journal of Pharmaceutical Sciences 2016年第1期11卷 56-57页

作者： L.H.Chuah L.De Silva m.saravanan J.Y.Fu School of Pharmacy Monash University MalaysiaBandar Sunway47500 SelangorMalaysia malaysian Palm Oil Board Bandar Baru Bangi43000 SelangorMalaysia

Vesicular delivery systems have gainedmuch attention as pharmaceutical entities since their *** occupy the general structure of bilayer vesicles,having a hydrophilic core shielded from one or multiple hydrophobic lipid *** unique structure enables them to both accommodate oilsoluble compounds as well as to encapsulate water-soluble drugs[1].The anticancer effects of tocotrienol were first discovered in the early 1990s when Nesaretnam et *** that palm oil stripped of vitamin E-promoted tumorigenesis in rats[2].

关键词： Niosomes Tocotrienol Drug delivery Breast cancer

肝淋巴解剖结构及其在系统性淋巴疾病中的作用

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国际医学放射学杂志 2022年第2期 240-240页

作者： C.L.Smith m.Liu m.saravanan A.G.Dewitt D.m.Biko E.m.Pinto 汤双燕

摘要目的通过肝内淋巴管造影方法，对罹患系统性淋巴疾病的病人由肝脏到全身淋巴系统的连接特征进行阐述，并比较淋巴干预后的结果。方法本回顾性研究纳入了2014

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macular microvascular and structural changes on optical coherence tomography angiography in atypical optic neuritis

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World Journal of methodology 2025年第1期15卷 88-94页

作者： Chinmay mahatme madhurima Kaushik Veerappan Rathinasabapathy saravanan Karthik Kumar Virna m Shah Department of General Ophthalmology Aravind Eye HospitalCoimbatore 641014Tamil NāduIndia Department of Neuro-ophthalmology Aravind Eye HospitalCoimbatore 641014Tamil NāduIndia Department of Vitreoretina Aravind Eye HospitalCoimbatore 641014Tamil NāduIndia

BACKGROUND Atypical optic neuritis,consisting of neuromyelitis optica spectrum disorders(NmOSD)or myelin oligodendrocyte glycoprotein antibody disease(mOGAD),has a very similar presentation but different prognostic implications and longterm management *** and metabolic factors are being thought to play a role in such autoimmune neuro-inflammatory disorders,apart from the obvious immune mediated *** the advent of optical coherence tomography angiography(OCTA),it is easy to pick up on these subclinical macular microvascular and structural *** To study the macular microvascular and structural changes on OCTA in atypical optic *** This observational cross-sectional study involved 8 NmOSD and 17 mOGAD patients,diagnosed serologically,as well as 10 healthy *** vascular density(mVD)and ganglion cell+inner plexiform layer thickness(GCIPL)were studied using *** There was a significant reduction in mVD in NmOSD and mOGAD affected as well as unaffected eyes when compared with healthy *** and mOGAD affected eyes had significant GCIPL thinning compared with healthy *** unaffected eyes did not show significant GCIPL thinning compared to healthy controls in contrast to mOGAD unaffected *** comparing NmOSD with mOGAD,there was no significant difference in terms of mVD or GCIPL in the affected or unaffected *** Although significant microvascular and structural changes are present on OCTA between atypical optic neuritis and normal patients,they could not help in differentiating between NmOSD and mOGAD cases.

关键词： Optical coherence tomography angiography Atypical optic neuritis macular microvascular changes Neuromyelitis optica spectrum disorders myelin oligodendrocyte glycoprotein antibody disorder

Nanoindentation and Wear Characteristics of Al 5083/SiC_p Nanocomposites Synthesized by High Energy Ball milling and Spark Plasma Sintering

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Journal of materials Science & Technology 2012年第11期28卷 969-975页

作者： Sivaiah Bathula saravanan m Ajay Dhar metals and Alloys Group Materials Physics and Engineering Division CSIR-National Physical Laboratory

AI 5083//10 wt% SiCp nano composites have been synthesized by means of high energy ball milling followed by spark plasma sintering （SPS）. Nano composites produced via this method exhibited near-theoretical density while retaining the nano-grained features. X-ray diffraction （XRD） analysis indicated that the crystalline size of the ball milled AI 5083 matrix was observed to be～25 nm and it was coarsened up to～30 nm after SPS. Nano indentation results of nano composites demonstrated a high hardness of～280 HV with an elastic modulus of 126 GPa. Wear and friction characteristics with addition of SiCp reinforcement exhibited significant improvement in terms of coefficient of friction and specific wear rate to that of nano structured AI 5083 alloy. The reduction in specific wear rate in the nanocomposite was mainly due to the change of wear mechanism from adhesive to abrasive wear with the addition of SiCp which resulted in high hardness associated with nano-grained microstructure.

关键词： metal matrix nano composites Friction/wear mechanical properties Highresolution transmission electron microscopy Spark plasma sintering Nanoindentation

Effect of Ichnocarpus frutescens (L.) *** extract on preadipocytes viability and lipid accumulation in 3T3-L1 cells

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Asian Pacific Journal of Tropical medicine 2013年第5期6卷 360-365页

作者： m.saravanan Savarimuthu Ignacimuthu Division of Ethnopharmacology Entomology Research InstituteLoyola CollegeChennaiTamilnadu 600 034India Entomology Research Institute Loyola CollegeChennaiTamilnadu 600 034India

Objective:To investigate the crude extracts of Ichnacarpus frutescens(***) for antiobesity ***:Leaves of *** were sequentially extracted with hexane,ethyl acetate, and methanol and their effect on viability of 3T3-L1 preadipocytes were *** on this the apoptosis on preadipocytes was confirmed by DmA fragmentation and LDH(Lactate dehydrogenase) leakage ***-adipogenesis was performed by oil red O(ORO) staining and free glycerol release in the medium of differentiated ***:The hexane extract of ***(IFHE) inhibited cell viability in a time- and dose-related *** increased release of *** a marker of membrane integrity,was observed at a dose of 200μg/mL The discontinuous DmA fragments on agarose gel electrophoresis showed the apoptotic effect of the *** observations of cells stained with ORG showed a decrease in cellular lipid content at the concentrations tested compared to the induced control *** the experiment of lipolytic activity,treatment with IFHE enhanced glycerol secretion with the rates of approximately 28%.55%,and 46%at the concentrations of 100,200 and 300μg/mL,***: The observed properties clearly revealed the medicinal property of *** in the treatment of obesity.

关键词： Obesity Adipocytes Apoptosis Adipogenesis

Cross Layer QoS Aware Scheduling based on Loss-Based Proportional Fairness with multihop CRN

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Computer Systems Science & Engineering 2022年第9期42卷 1063-1077页

作者： K.saravanan G.m.Tamilselvan A.Rajendran Department of ECE KPR Institute of Engineering and TechnologyCoimbatoreIndia Department of IT Sri Krishna College of TechnologyCoimbatoreIndia Department of ECE Karpagam College of EngineeringCoimbatoreIndia

As huge users are involved,there is a difficulty in spectrum allocation and scheduling in Cognitive Radio Networks(CRNs).Collision increases when there is no allocation of spectrum and these results in huge drop rate and network performance *** solve these problems and allocate appropriate spectrum,a novel method is introduced termed as Quality of Service(QoS)Improvement Proper Scheduling(QIPS).The major contribution of the work is to design a new cross layer QoS Aware Scheduling based on Loss-based Proportional Fairness with multihop(QoSAS-LBPFm).In medium Access Control(mAC)multi-channel network environment mobile nodes practice concurrent broadcast between several *** the advantage of introduced cross layer design,the real-time channel conditions offered by Cognitive Radio(CR)function allows adaptive sub channel choice for every *** optimize the resources of network,the LBPFm adaptively plans the radio resources for allocating to diverse services without lessening the quality of *** obtained from simulation proved that QoSAS-LBPFm provides enhanced QoS guaranteed performance against other existing QIPS algorithm.

关键词： Network efficiency distributed architecture mobile ad hoc networks Cognitive Radio Networks(CRNs) QoS improvement scheduling

Kinetics of phenol and m-cresol biodegradation by an indigenous mixed microbial culture isolated from a sewage treatment plant

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Journal of Environmental Sciences 2008年第12期20卷 1508-1513页

作者： Pichiah saravanan Kannan Pakshirajan Prabirkumar Saha Department of Chemical Engineering Indian Institute of Technology GuwahatiGuwahati Department of Biotechnology Indian Institute of Technology GuwahatiGuwahati

An acclimatized mixed microbial culture,predominantly Pseudomonas sp.,was enriched from a sewage treatment plant,and its potential to simultaneously degrade mixtures of phenol and m-cresol was investigated during its growth in batch shake flasks.A 22 full factorial design with the two substrates at two different levels and different initial concentration ranges(low and high),was employed to carry out the biodegradation *** substrates phenol and m-cresol were completely utilized within 21 h when ...

关键词： biodegradation factorial design of experiments kinetics m-cresol mixed microbial culture phenol sum kinetics model