检索结果-南通市图书馆

Chinese Journal of Chemical Eng.neering 2018年第3期26卷 445-454页

作者： R. Kamatchi g. kumaresan School of Mechanical Eng.neering VIT University Vellore Institute of Technology 632014 Tamil Nadu India Department of Mechanical Eng.neering.Bannari Amman Institute of Technolog. Sathyamangalam 638401 Tamil Nadu India

In the present work, the pool boiling.critical heat flux, transient heat transfer characteristics, and bonding.streng.h of thin Ni-Cr wire with aqua based reduced g.aphene oxide(r g.) nanofluids are experimentally studied. Results indicate:(i) the critical heat flux(CHF) of 0.01, 0.05, 0.1, 0.2, and 0.3 g.L^(-1) concentrations of r g.-water nanofluids varies from 1.42 to 2.40 MW·m^(-2);(ii) the CHF remains same for the tested samples during.transient heat transfer studies and(iii) a constant value of CHF upto 10 tests when the nanocoated Ni-Cr wire is tested with DI water and deterioration occurs beyond this which implies a chance of peel off of r g. layer below the critical coating.thickness.

关键词： Reduced g.aphene oxide Pool boiling.Nanoparticle deposition Transient characteristics

Advances in alimentary tract imag.ng

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

World Journal of g.stroenterolog. 2006年第20期12卷 3139-3145页

作者： Dean DT Mag.inte kumaresan Sandraseg.ran Mark Tann Department of Radiolog. Indiana University School of Medicine IndianapolisUnited States

in imag.ng.techniques are chang.ng.the way radiolog.sts undertake imag.ng.of the g.strointestinal tract and their ability to answer questions posed by surg.ons. In this paper we discuss the technolog.cal improvements of imag.ng.studies that have occurred in the last few years and how these help to better diag.osing.alimentary tract disease.

关键词： Imag.ng Alimentary tract

Studies on bioprospecting.potential of a g.stropod mollusc Cantharus tranquebaricus(g.elin,1791)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Biomedicine 2012年第10期2卷 759-764页

作者： g.Sarumathi M Arumug.m S kumaresan T Balasubramanian Annamalai University Faculty of Marine SciencesCentre of Advanced Study in Marine Biology

Objective:To study the biolog.cal activities of the tissue extract of Cantharus tranquebaricus(***).Methods:Crude extract of g.stropod was tested for inhibition of bacterial *** assay was carried out by disc diffusion method and the activity was measured according.y based on the inhibition zone around the disc impreg.ated with g.stropod *** weig.t of the extract was determined by using.*** coag.lation,Fibrin plate assay and substrate SDS-PAg. were used to determine the effect of sample on plasma coag.lation,fibrin(og.n)olytic and proteolytic;***:The maximum inhibition zone(10 mm)was observed ag.inst Vibrio cholera(***)and minimum inhibition zone(2 mm)was noticed ag.inst Proteus mirablis(***).The molecular weig.t was determined as *** tissue extract shows proteolytic activity above 48 ***-PAg. analysis of fibrinog.n after incubation with the tissue extract showed fibrinog.nolytic *** plasma coag.lation assay *** tissue extract showed procoag.lant property and it coag.lated chicken plasma within 150 s,while control took 5 min to *** 9 HU hemolytic units were found ag.inst chicken blood and also exhibit hig. level of brine shrimp ***:This study sug.ests that *** could be used as potential source for isolating.bioactive compounds,since it is explored first time and found with promising.results.

关键词： Antimicrobial Proteolytic Fibrinolytic Hemolytic Brine shrimp lethality Cantharus tranquebaricus Plasma coag.lation

Preliminary studies for a new antibiotic from the marine mollusk Melo melo(Lig.tfoot,1786)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Medicine 2011年第4期4卷 310-314页

作者： Kanag.sabapathy Sivasubramanian Samuthirapandian Ravichandran kumaresan M Centre of Advanced Study in Marine Biolog. Annamalai University

Objective:To search for new bioactive compounds from marine mollusks Melo melo(***). Methods:Preliminary work for bioactive compound was identified by using.disc diffusion methods ag.inst human *** analyses of compound were done by using.TLC, *** also estimate the amount of protein in the samples by following.Biuret ***:In antibacterial activity the maximum diameter of 24 mm zone of inhibition was recorded ag.inst Klebsiella pneumoniae(***) strain of the mucus extract and minimum zone of inhibition of 11 mm was observed in Salmonella typhi(***) strain of body tissue *** antifung.l activity of the extraction shows maximum activity ag.inst Trichophyton mentag.rophytes(***)(14 mm) and minimum activity was recorded in Asperg.llus flavus(***)(11 mm).The extract of mucus,nerve tissue,body tissue and kidney that showed antimicrobial activity was subjected to TLC to determine the presence of the peptides and amide g.oups,and also subjected to SDS-PACE to estimate the molecular weig.t of proteins in a clear band were detected in the g.l that represented kidney,body tissue,brain and mucus represent 14,17,22,45 ***:The extracts from marine mollusks *** is the potential source of producing.bioactive compounds ag.inst human pathog.ns and can be used for synthesis of new drug..

关键词： Antibacterial Antifung.l TLC SDS-PAg. Melo melo

An Efficient Stacked-LSTM Based User Clustering.for 5g.NOMA Systems

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2022年第9期72卷 6119-6140页

作者： S.Prabha kumaresan Chee Keong.Tan Yin Hoe Ng Faculty of Eng.neering Multimedia UniversityCyberjaya63100Malaysia School of Information Technolog. Monash UniversitySubang Jaya47500Malaysia

Non-orthog.nal multiple access(NOMA)has been a key enabling.technolog. for the fifth g.neration(5g.cellular *** on the NOMA principle,a traditional neural network has been implemented for user clustering.UC)to maximize the NOMA system’s throug.put performance by considering.that each sample is independent of the prior and the subsequent ***,the prediction of UC for the future ones is based on the current clustering.information,which is never used ag.in due to the lack of memory of the ***,to relate the input features of NOMA users and capture the dependency in the clustering.information,time-series methods can assist us in g.ining.a helpful insig.t into the *** its mathematical complexity,the essence of time series comes down to examining.past behavior and extending.that information into the ***,in this paper,we propose a novel and effective stacked long.short term memory(S-LSTM)to predict the UC formation of NOMA users to enhance the throug.put performance of the 5g.based NOMA *** the proposed strateg.,the S-LSTM is modelled to handle the time-series input data to improve the predicting.accuracy of UC of the NOMA users by implementing.multiple LSTM layers with hidden *** implemented LSTM layers have feedback connections that help to capture the dependency in the clustering.information as it propag.tes between the ***,we develop,train,validate and test the proposed model to predict the UC formation for the futures ones by capturing.the dependency in the clustering.information based on the time-series *** results demonstrate that the proposed scheme effectively predicts UC and thereby attaining.near-optimal throug.put performance of 98.94%compared to the exhaustive search method.

关键词： Non-orthog.nal multiple access(NOMA) deep neural network(DNN) long.short term memory(LSTM) temporal channel user clustering

Beneficial effects of anthocyanins ag.inst diabetes mellitus associated consequences——A mini review

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Biomedicine 2018年第10期8卷 471-477页

作者： Bhag.vathi Sundaram Sivamaruthi Periyanaina Kesika kumaresan Subasankari Chaiyavat Chaiyasut Innovation Center for Holistic Health Nutraceuticalsand CosmeceuticalsFaculty of PharmacyChiang Mai University Centre of Advanced Study in Marine Biolog. Annamalai University

Anthocyanins(ACN) are water-soluble pig.ents, belong.ng.to flavonoids, and are present in almost all fruits, and veg.tables at varying.concentration. About 635 ACN were disting.ished based on the position and number of methoxyl and hydroxyl moieties in the basic structure of ACN. Pelarg.nidin, cyanidin, delphinidin, malvidin, peonidin, and petunidin are extensively studied anthocyanidins. The absorption, bioavailability, metabolism, pharmacokinetics, molecular mechanism, and analytical techniques of several phytochemicals were described. The biolog.cal benefits(antidiabetic, anti-neuro-disorder, anti-cardiovascular diseases, antig.strointestinal diseases, and disorders) of flavonoids and ACN have been reported. Several in vitro, and in vivo reports demonstrated that ACN-rich plant extracts ameliorate the diabetesassociated consequences by reducing.the g.ucose absorption, ROS production, oxidative stress, g.omerular ang.og.nesis, lipid synthesis, and FoxO1 and adipose trig.yceride lipase expressions, and improve the insulin secretion, insulin sensitivity, g.ucose tolerance, g.ucose uptake, g.ucose consumption, antioxidant activity. The literature search was made in Scopus, g.og.e Scholar, PubMed using.the keywords "anthocyanin" and "diabetes". The documents were carefully checked for the relevance to the current manuscript and the selection was made without any chronolog.cal restriction. The present manuscript summarizes the updated reports on antihyperg.ycemic properties of ACN.

关键词： Anthocyanins Flavonoids Diabetes Cyanidin 3-O-β-D-g.ucoside Insulin sensitivity

Laser irradiation effects and its possible mechanisms of action on spermatozoa functions in domestic animals

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian pacific Journal of Reproduction 2017年第3期6卷 97-103页

作者： Lone SA Mohanty TK kumaresan A Bhakat M Artificial Breeding.Research Centre ICAR-National Dairy Research InstituteKarnal132001HaryanaIndia Livestock Research Centre ICAR-National Dairy Research InstituteKarnal132001HaryanaIndia

This article presents a review pertains the laser irradiation effects and its possible mechanisms of action on spermatozoa functions in domestic animals. To improve artificial insemination, laser is sensitive and cost effective technique, when compared to other conventional methods. Laser may have both positive and neg.tive effects on spermatozoa functions. Since the effects of lig.t are mediated by reactive oxyg.n species, and the levels of these reactive oxyg.n species following.irradiating.spermatozoa with laser may be responsible for determining.the effects of laser on sperm. Dose of laser may be reg.rded as of g.eat sig.ificance and this dosag. of laser may be responsible for determining.its effects on spermatozoa. Optimum dosag. of laser for improving.seminal attributes may vary among.various species and this need to be standardized in each of them. The beneficial effects include improving.sperm livability, acrosomal integ.ity, hypo-osmotic swelling.response, mitochondrial function and computer-aided sperm analysis parameters. The increase in cytochrome c oxidase activity, ATP levels and mitochondrial membrane potential, in laser irradiated cells may be responsible for enhanced sperm quality parameters. Improving.fertility with laser irradiated spermatozoa has been reported in few species like boar and need to be elaborated in other species. In conclusion laser may be reg.rded as an easy, cheap and time saving.technolog. for improving.artificial insemination;in addition, laser may have various potential applications in the field of reproductive biotechnolog. as well as in livestock farms and veterinary polyclinics.

关键词： Laser Irradiation Spermatozoa Function Mechanism

An improved delta-star switching.scheme for reactive power saving.in three-phase induction motors

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers in Energ. 2014年第3期8卷 364-370页

作者： R RAJA, N. kumaresan M. SUBBIAH Department of Electrical and Electronics Eng.neering National Institute of Technology Tiruchirappalli Tamil Nadu 620015 India Department of Electrical and Electronics Eng.neering Rajalakshmi Engineering College Chennai 602105 India

It is proposed that a capacitor can be connected permanently across each phase winding.of a three-phase induction motor along.with the conventional delta-star switching. for further saving.in VARh at reduced loads on the motor. The method of choosing.a suitable value for the capacitor and the criteria to be adopted for calculating.the power output at which the star to delta switching.is to be made are also explained. The phase, 4-pole, 415 V, 50 Hz, 3 experimental results on a 3- 3 kW induction motor verify the advantag.s in adding.the capacitor to the phase winding.of the motor. Compared to using.only a sing.e delta connected stator winding.or a delta-star switching. the advantag.s of the proposed addition of a capacitor, are also demonstrated throug. a case study conducted on a 400 V, 250 kW motor. Any further improvement in g.id side power factor can be achieved by employing.a static synchronous compensator （STATCOM） of reduced VAR rating.

关键词： delta-star switching induction motor powerfactor steady-state analysis

Analysis and control of wind-driven self-excited induction g.nerators connected to the g.id throug. power converters

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers in Energ. 2012年第4期6卷 403-412页

作者： S. Senthil KUMAt N. kumaresan N. Ammasai g.UNDEN Namani RAKESH Department of Electrical and Electronics Eng.neering National Instituteof Technology Tiruchirappalli Tamil Nadu 620015 India

The analysis of the wind-driven self-excited induction g.nerators （SEIg.） connected to the g.id throug. power converters has been developed in this paper. For this analysis, a method of representing.the g.id power as equivalent load resistance in the steady-state equivalent circuit of SEIg.has been formulated. The technique of g.netic alg.rithm （g.） has been adopted for making.the analysis of the proposed system simple and straig.tfor- ward. The control of SEIg.is attempted by connecting.an uncontrolled diode bridg. rectifier （DBR） and a line commutated inverter （LCI） between the g.nerator term- inals and three-phase utility g.id. A simple control technique for maximum power point tracking.（MPPT） in wind energ. conversion systems （WECS）, in which the firing.ang.e of the LCI alone needs to be controlled by sensing.the rotor speed of the g.nerator has been proposed. The effectiveness of the proposed method of MPPT and method of analysis of this wind-driven SEIg.converter system connected to the g.id throug. power converters has been demonstrated by experiments and simulation. These experimental and simulated results confirm the usefulness and successful working.of the proposed system and its analysis.

关键词： self-excited induction g.nerator (SEIg.,renewable power g.neration power converters maximumpower point tracking.(MPPT) steady state analysis powerg.neration systems

Irradiation Effect on Second Harmonic g.neration of Dyes Doped KDP Crystals

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Electronic Science and Technolog. of China 2010年第1期8卷 43-45页

作者： P.kumaresan Department of Physics Arignar Anna Government Arts CollegeCheyyar-604 407Tamil NaduIndia.

Most irradiation studies in the hydrog.n bonded ferroelectrics have been concentrated on the transient defects induced by ionising.radiation, such as ultraviolet （UV） lig.t, where the defects are closely related to the optical properties. But heavy ion beam irradiation effects have rarely been studied. The structural, optical, and non-linear optical properties of the doped crystals were analyzed with the characterization studies, such as powder XRD, UV-Visible and second harmonic g.neration （SHg. measurements, respectively. The results for doped KDP crystal were compared with the results of the pure KDP crystals. The experiment results showed that Li^3＋ irradiation leads to the development of a well-defined surface H peak in dye doped KDP crystals. The stability of KDP sing.e crystal was improved by doping.org.nic dyes. The nano-islands of dye in KDP were likely to be dissolved and enhance the non-linear optical properties of these materials.

关键词： Irradiation effect KDP crystals,org.nic dye second harmonic g.neration (SHg..