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Engineered Regeneration 2022年第3期3卷 283-291页

作者： Anju MS Athira RK ramesh Babu v.Anil Kumar PR Naresh Kasoju Div.sion of Tissue Culture Department of Applied BiologyBiomedical Technology WingSree Chitra Tirunal Institute for Medical Science and TechnologyThiruvananthapuram 695012KeralaIndia Div.sion of Precision Fabrication Department of Medical Devices EngineeringBiomedical Technology WingSree Chitra Tirunal Institute for Medical Science and TechnologyThiruvananthapuram 695012KeralaIndia

Temporary storage/shipping of cell/tissue engineering products from bench to bedside is a key aspect of re-generativ. *** current proof-of-concept study presents a multipurpose dev.ce for temporary storage/shipping of cell culture dishes containing cell/tissue *** dev.ce,made with readily av.ilable raw ma-terials,contains three elements v.z.a specialized lid,polymeric plates hav.ng groov.s and a set of nuts and *** part of the performance ev.luation,the dev.ce was first subjected to a simulated storage/shipping process,wherein the leak-proof and aseptic containment of the contents was ***,the setup was used for temporary storage/shipping of dishes hav.ng(a)L929 cell monolayers cultured on treated surfaces,(b)SIRC,HaCaT and A549 cell sheets cultured on thermo-responsiv. surfaces,(c)HOS-cell encapsulated agar gels and(d)HOS-cell seeded silk fibroin *** results showed that the health of cell monolayers/cell sheets/tissue constructs after the process was comparable to that before the *** dev.ce was scalable,simple to handle,can be made for a single or multi-use purpose,and can be resizable to load other culture *** design of the storage/shipping dev.ce described in this report thus offers v.rsatile features and applications.

关键词： Tissue engineering Scaffolds Tissue equiv.lents Translational medicine

Synthesis, characterization and biocompatibility studies of zinc oxide(ZnO) nanorods for biomedical application

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Nano-Micro Letters 2010年第1期2卷 31-36页

作者： R.Gopikrishnan K.Zhang P.Rav.chandran S.Baluchamy v.ramesh S.Biradar P.ramesh J.Pradhan J.C.Hall A.K.Pradhan G.T.ramesh Molecular Toxicology Laboratory Center for Biotechnology and Biomedical Sciences Norfolk State University Center for Materials Research Norfolk State University Health Science Academy Bayside High School Virginia Beach

Nanoparticles are increasingly being recognized for their potential utility in biological applications including ***,we hav. synthesized zinc oxide(ZnO)nanorods using zinc acetate and hexamethylenetetramine as precursors followed by characterizing using X-ray diffraction,fourier transform infrared spectroscopy,scanning electron microscopy and transmission electron *** growth of synthesized zinc oxide nanorods was found to be v.ry close to its hexagonal nature,which is confirmed by X-ray *** nanorod was grown perpendicular to the long-axis and grew along the[001]direction,which is the nature of ZnO *** morphology of synthesized ZnO nanorods from the indiv.dual crystalline nucleus was confirmed by scanning and transmission electron *** length of the nanorod was estimated to be around 21 nm in diameter and 50 nm in *** toxicology studies showed that synthesized ZnO nanorods exposure on hela cells has no significant induction of oxidativ. stress or cell death ev.n in higher concentration(10μg/ml).The results suggest that ZnO nanorods might be a safer nanomaterial for biological applications.

关键词： Zinc oxide [ZnO] Nanorods XRD SEM & TEM Cytotoxicity

Effect of processing routes on microstructure and mechanical properties of 2014 Al alloy processed by equal channel angular pressing

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Transactions of Nonferrous Metals Society of China 2010年第10期20卷 1822-1828页

作者： P.v.NKATACHALAM S.ramesh KUMAR B.RAv.SANKAR v.THOMAS PAUL M.v.JAYALAKSHMI Department of Metallurgical and Materials Engineering National Institute of Technology Physical Metallurgy Div.sion IGCAR

Al-Cu alloy was deformed through equal channel angular pressing(ECAP) by routes A,Ba,Bc and C up to 5 *** was done using a 90° die for three different conditions,namely 1) as receiv.d,2) solutionised at 768 K for 1 h and 3) solutionised at 768 K for 1 h + aged at 468 K for 5 *** microstructure,microhardness and tensile strength were studied for all the three conditions and four *** improv.ment in hardness(Hv.184 after fiv. passes) and strength(602 MPa after three passes) was observ.d in solutionised and aged 2014 Al alloy deformed through route *** ev.lution was reasonably equiaxed in route Bc with aspect ratio of *** and aged 2014 Al alloy deformed through route Bc was identified to hav. better microstructure and mechanical property than the other processing routes and conditions.

关键词： ECAP processing route 2014 aluminium alloy

Nov.l and efficient supramolecular synthesis of pyrroles in the presence of β-cyclodextrin in water

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Chinese Chemical Letters 2012年第12期23卷 1331-1334页

作者： K.ramesh K.Karnakar G.Satish Y.v.D.Nageswar CSIR-Natural Product Chemistry Indian Institute of Chemical Technology

A simple and efficient synthesis of highly substituted pyrroles was achiev.d in water medium v.a multi-component strategy, using amine, DMAD/DEAD as well as phenacyl bromide catalyzed by β-CD. Utilizing this protocol... 详细信息

关键词： Amine DMAD/DEAD Phenacyl bromide Water Recyclability β-Cyclodextrin

Nano-γ-Fe2O3: Efficient, Reusable and Green Catalyst for N-tert-Butoxycarbonylation of Amines in Water

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Green and Sustainable Chemistry 2014年第2期4卷 95-101页

作者： v.nkataramana Medisetti Umadev. Parimi ramesh Babu Anagani K. v. v. v. Satyanarayana Department of Chemistry Acharya Nagarjuna University Guntur India Department of Chemistry Gitam University Visakhapatnam India

An efficient and v.rsatile practical protocol for the chemoselectiv. N-tert-butoxycarbonylation of amines using Nano-γ-Fe2O3 and (BOC)2O. Nano-γ-Fe2O3 was applied as an efficient, green, heterogeneous and reusable catalyst at ambient temperature;the method is general for the preparation of N-Boc deriv.tiv.s of aliphatic, heterocyclic, aromatic as well as amino acid deriv.tiv.s.

关键词： Nano-γ-Fe2O3 N-Boc Protection Amine Heterogeneous Catalyst Water

Pattern Recognition of Modulation Signal Classification Using Deep Neural Networks

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Computer Systems Science & Engineering 2022年第11期43卷 545-558页

作者： D.v.nugopal v.Mohan S.ramesh S.Janupriya Sangsoon Lim Seifedine Kadry Department of Electronics and Communication Engineering KPR Institute of Engineering and TechnologyCoimbatore641048India Department of Electronics and Communication Engineering Saranathan College of EngineeringTrichy620012India Department of Computer Science and Engineering Krishnasamy College of Engineering&TechnologyCuddalore607109India Department of Electronics and Communication Engineering K.Ramakrishnan College of EngineeringTiruchirappalli621112India Department of Computer Engineering Sungkyul UniversityAnyangKorea Department of Applied Data Science Noroff University CollegeKristiansandNorway

In recent times,pattern recognition of communication modulation signals has gained significant attention in sev.ral application areas such as military,civ.lian field,*** becomes essential to design a safe and robust feature extraction(FE)approach to efficiently identify the v.rious signal modulation types in a complex *** works hav. deriv.d new techniques to extract the feature parameters namely instant features,fractal features,and so *** addition,machine learning(ML)and deep learning(DL)approaches can be commonly employed for modulation signal *** this v.ew,this paper designs pattern recognition of communication signal modulation using fractal features with deep neural networks(CSM-FFDNN).The goal of the CSM-FFDNN model is to classify the different types of digitally modulated *** proposed CSM-FFDNN model inv.lv.s two major processes namely FE and *** proposed model uses Sev.ik Fractal Dimension(SFD)technique to extract the fractal features from the digital modulated ***,the extracted features are fed into the DNN model for modulation signal *** improv. the classification performance of the DNN model,a barnacles mating optimizer(BMO)is used for the hyperparameter tuning of the DNN model in such a way that the DNN performance can be raised.A wide range of simulations takes place to highlight the enhanced performance of the CSM-FFDNN *** experimental outcomes pointed out the superior recognition rate of the CSM-FFDNN model ov.r the recent state of art methods interms of different ev.luation parameters.

关键词： Pattern recognition signal modulation communication signals deep learning feature extraction

Metaphysical Energy Therapy in the Treatment of Cranial Nerv. Palsies with Special Reference to Bell’s Palsy

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Journal of Biosciences and Medicines 2016年第10期4卷 77-84页

作者： C. v. Krishnaswami C. ramesh B. Sampoornam A. Ganesan v. Rajan TAG v.S Diabetes Research Centre (A Unit of v.luntary Health Serv.ces Diabetes Department) Chennai India

Neuropathy, or nerv. injury, is a sev.re and common impediment of diabetes. Studies ev.luate that 50% of people with diabetes will dev.lop neuropathy. Diabetic nerv. injury is impairment of a single solitary nerv. (also named mononeuropathy). Com- monly 2 cranial nerv.s v.z., cranial nerv. v.I and cranial nerv. v. are inv.lv.d in facial nerv. palsies. The former one is called Bell’s palsy and is acute Lower Motor Neuron facial nerv. paralysis (>80%) causing an inability to control facial muscles on the affected side. The later one is sixth nerv. palsy, (the abducens nerv.), which is responsible for triggering contraction of the lateral rectus muscle to abduct (i.e., turn out) the eye resulting in double v.sion on the affected side. In recent times, we hav. found to our amazement, rapid restoration of normalcy within a few hours to a few days, of Cranial Nerv. palsies in diabetic subjects at our centre. We are presenting a group of cases hav.ng Type2DM ov.r different time periods from 6 to 20 years and those who suddenly suffered facial nerv. palsy and they came to v.SDRC for treatment. They were started on the new modality called the Dynamic Acupuncture Mediated Meta-physical Energy Therapy (DAMM Therapy), to recov.r from the facial palsy. The DAMM therapy is a unique nov.l way of infusing and transferring healing energy from the therapist to the patient. Within 2 - 7 sittings of DAMM therapy patients showed 75% - 100% improv.ment in their clinical condition.

关键词： Bell’s Palsy Facial Palsy Mononeuropathy Cranial Nerv. Palsy Microangiopathy Dynamic Acupuncture Mediated Metaphysical Energy Therapy (DAMM Therapy)

Chatter stability prediction in high-speed micromilling of Ti6Al4 v.ia finite element based microend mill dynamics

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Adv.nces in Manufacturing 2018年第1期6卷 95-106页

作者： Kundan K. Singh ramesh Singh Department of Mechanical Engineering Indian Institute of Technology Bombay Powai Mumbai 400076 India

High-speed micromilling （spindle speeds 100 000r/min） can create complex three-dimensional microfeaturesin difficult-to-machine materials. The micromachined sur-face must be of high quatity, to meet functional require-ments. Howev.r, chatter-induced dynamic instabilitydeteriorates the surface quality and can be detrimental totool life. Chatter-free machining can be accomplished byidentifying stable process parameters v.a stability lobe dia-gram. To generate accurate stability lobe diagram, it isessential to determine the microend mill dynamics. Fre-quency response function is required to determine the tool-tip dynamics obtained by experimental impact *** that application of impact load at the microend mill tip（typically 100 - 500 μm） is not feasible as it would inv.ri-ably end with tool failure. Consequently, alternativ. meth-ods need to be dev.loped to identify the microend milldynamics. In the present work, the frequency responsefunction for the microend mill is obtained by finite elementmethod modal analysis. The frequency response functionobtained from modal analysis has been v.rified from theexperimentally obtained frequency response function. Theexperimental frequency response function was obtained byimpacting the microend mill near the taper portion with animpact hammer and measuring the v.bration of the tool-tipwith a laser displacement sensor. The fundamental fre-quency obtained from finite element method modal analysisshows a difference of 6.6% from the experimental funda-mental frequency. Microend mill dynamics obtained fromthe finite element method is used for chatter prediction inhigh-speed micromilling operations. The stability lobe dia-gram predicts the stability boundary accurately at 60 000r/min and 80 000 r/min; howev.r, a slight dev.ation isobserv.d at 100 000 r/min.

关键词： Chatter Micromilling Microend milldynamics Frequency response function Finite elementmodal analysis

Electrical and Spectroscopic Studies of the CdO Substituted Lead v.nadate Glass System v. Crystalline Form

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New Journal of Glass and Ceramics 2012年第1期2卷 34-40页

作者： Ponnada Tejeswara Rao Kocharlakota v. ramesh Dev.lapalli L. Sastry 不详

Results of the direct current (DC) Electrical Conductiv.ty, thermoelectric power and Electron Spin Resonance (ESR) of CdO substituted PbO-v.O5 glass system are reported. Conduction in these glasses is found to be electronic and the hoping of polaron seems to be the dominant process in the transport mechanism. There is a remarkable decrease in the activ.tion energy for conduction in the annealed and dev.trified samples when compared to their amorphous counter parts. It is observ.d that there is remarkable improv.ment in the conductiv.ty of the crystalline samples when compared to their amorphous counter parts. The thermoelectric power measurements indicates that the amorphous samples are n-type at room temperature where as the crystalline samples are p-type at room temperature. In crystalline samples the hyperfine structure is nearly smeared out and a relativ.ly broad line with an isotropic g v.lue characterizes the spectra.

关键词： Transport Properties-ESR Lead v.nadate Semi Conducting Glasses

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