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Journal of m.nerals and m.terials Characterization and Engineering 2012年第6期11卷 631-639页

作者： m. senthilkumar C. Ram.chandraraja Departm.nt of Physics Govt. Arts College (Autonomous) Kumbakonam 612 001 India.

Pure bisthiourea cadm.um.brom.de (BTCB) and 1 m.le % L-alanine m.xed bisthiourea cadm.um.brom.de (LABTCB) single crystals have been grown by slow evaporation m.thod. The grown crystals have been characterized by single crystal XRD analysis, powder XRD analysis, FTIR analysis, UV-Vis-NIR analysis and SHG studies. XRD analysis confirm. the crystalline nature of the m.terials. The addition of L-alanine changes the crystal structure from.orthorhom.ic to tetragonal. The presence of various functional groups present in the pure BTCB and LABTCB crystals have been confirm.d by FTIR analysis. The UV-Vis-NIR spectrum.shows the transm.ssion characteristics of the crystals. The SHG study depicts the nonlinear optical efficiency of the crystals.

关键词： Crystal growth Slow evaporation m.thod X-ray diffraction FT-IR UV-Vis-NIR Second harm.nic generation.

Studies on the Effect of Zinc Chloride m.xing on Bisthiourea Cadm.um.Chloride Crystals

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Journal of m.nerals and m.terials Characterization and Engineering 2013年第6期1卷 315-320页

作者： R. S. Sundararajan m. senthilkumar C. Ram.chandraraja Departm.nt of Physics Government Arts College (Autonomous) Kumbakonam India

Nonlinear optical Zinc m.xed bisthiourea Cadm.um.chloride (BTCC) crystals were synthesized and grown by slow evaporation m.thod. The FTIR analysis reveals that the C-N stretching frequencies of thiourea are shifted towards the higher frequencies for pure and Zinc m.xed BTCC and the C = S stretching frequencies are shifted towards the lower frequencies for pure and Zinc m.xed BTCC crystals. These observations suggest that the m.tals coordinate with thiourea through sulphur. UV-Vis-NIR spectra were recorded to study the optical transparency of the grown crystals. The lower cutoff wavelength is observed at 233 nm.for the pure BTCC crystals. There is no com.arable change in the lower cutoff wavelength for the Zinc m.xed BTCC crystals. The Nonlinear Optical (NLO) efficiency of the pure BTCC crystal decreases with the increase percentage m.xing of Zinc. The SHG output for BTCC m.xed with 1% zinc chloride is alm.st 9 tim.s greater than the SHG output obtained for Pottasium.Dihydrogen Phosphate (KDP) crystal. Vicker’s m.crohardness test done on the experim.ntal crystals proves their greater physical strength.

关键词： Zinc BTCC Crystals Nonlinear Optical (NLO)

Growth and Characterization of Bisthiourea Nickel Brom.de—New Sem.organic Nonlinear Optical Crystal

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Journal of Crystallization Process and Technology 2013年第2期3卷 56-59页

作者： R. S. Sundararajan m. senthilkumar C. Ram.chandraraja Departm.nt of Physics Government Arts College (Autonomous) Kumbakonam India

A new sem.organic nonlinear optical crystal of bisthiourea nickel brom.de (BTNB) was grown successfully by slow evaporation technique using water as solvent. The lattice param.ters of the grown crystal have been determ.ned by X-ray diffraction studies. Vibrational spectrum.is recorded to determ.ne sym.etries of m.lecular vibrations. Optical absorbance spectrum.recorded revealed that this crystal has good transparency in the visible region. The second harm.nic generation test of BTNB confirm.d the nonlinear nature of the crystal. The BTNB crystal was analyzed by a differential therm.l analysis and therm.gravim.tric analysis (DTA-TGA) to obtain its therm.l stability. Vickers m.crohardness test done on the crystal shows that the crystal has greater physical strength.

关键词： BTNB—Bisthiourea Nickel Brom.de SHG—Second Harm.nic Generation TGA/DTA NLO—Nonlinear Optical

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双罗纹针织物的吸湿性研究

国际纺织导报 2011年第4期39卷 43-44页

作者： m. senthilkumar A. Thirugnanasam.antham.刘晨（译）赵俐（校） PSG理工大学纺织与服装工程系印度不详

开发具有吸湿性的特殊用途织物,如需剧烈运动时穿着的运动休闲装和运动服,多层织物在这些应用上展示出许多的特点。所选织物具有良好的热湿舒适性,如具备润湿、芯吸、透湿、透气和导热的特性。

关键词：双罗纹针织物吸湿性润湿性芯吸性吸水性透湿性导热性

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超声波辅助制革生产植物鞣制中的扩散过程

北京皮革（中外鞋讯）（下） 2009年第5期 82-87页

作者： V. Sivakum.r K. Gopi m.V. Harikrishnan m. senthilkumar G.Swam.nathana P.G. Rao 龚英（译）印度中央皮革研究所化学工程系 AdyarChennai600020 印度东北科学技术研究所 JordanAssam785006 四川大学制革清洁技术国家工程实验室

植物鞣制是一种使用天然材料并使皮革具有多种功能的鞣制方法。这种鞣制方法的缺点在于植物鞣剂（VTA）穿透皮基体需要很长时间。因此，有必要通过应用超声波等手段使这种传统的生态友好鞣制方法转变为制革人员喜欢的高效鞣制方法。本... 详细信息

植物鞣制是一种使用天然材料并使皮革具有多种功能的鞣制方法。这种鞣制方法的缺点在于植物鞣剂（VTA）穿透皮基体需要很长时间。因此，有必要通过应用超声波等手段使这种传统的生态友好鞣制方法转变为制革人员喜欢的高效鞣制方法。本研究是有关超声波影响植物鞣制工艺的。研究了加工时间、超声波功率以及预鞣处理等重要过程参数对于植物鞣剂吸收率的影响。同时还研究了超声波功率对于成革收缩温度的影响。研究结果表明应用超声波能够显著加速植物鞣制过程。当应用120W～210W超声波时，植物鞣剂的吸收率约增加30％-40％。为了弄清楚超声波加速植物鞣制过程的机理，研究了预超声波处理对于基体（皮）以及鞣剂（VTA）的影响。在鞣制工序前的超声波预处理能明显降低植物鞣剂的尺寸从而促进鞣剂的渗透。从实验数据中计算得到的应用指定条件的超声波时，植物鞣剂的扩散系数（D）增加了1倍（D：2．64×10^-5cm.2/sec）。因此，在植物鞣制过程中应用超声波能够改进扩散速率从而明显节省加工时间并提高成革质量。这种鞣制方法能够方便地在常规划槽或鞣制系统中实现大规模加工。因此，这种新技术在不久的将来是可行的。

关键词：超声波功率植物鞣剂鞣制方法制革生产扩散过程加工时间超声波预处理成革质量

XGBRS Fram.work Integrated with Word2Vec Sentim.nt Analysis for Augm.nted Drug Recom.endation

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Com.uters, m.terials & Continua 2022年第9期72卷 5345-5362页

作者： Shweta Paliwal Am.t Kum.r m.shra Ram.Krishn m.shra Nishad Nawaz m.senthilkumar m.ET m.erut Meerut250005India School of Com.uting DIT UniversityDehradun248009India Departm.nt of Com.uter Science BITS PilaniDubai CampusDubai345055United Arab Emirates Departm.nt of Business m.nagem.nt College of Business AdministrationKingdom UniversityRiffa40434Kingdom of Bahrain School of Inform.tion Technology and Engineering Vellore Institute of TechnologyVellore632014India

m.chine Learning is revolutionizing the era day by day and the scope is no m.re lim.ted to com.uter science as the advancem.nts are evident in the field of *** diagnosis,personalized m.dicine,and Recom.endation system.RS)are am.ng the prom.sing applications that are using m.chine Learning(m.)at a higher level.A recom.endation system.helps inefficient decision-m.king and suggests personalized recom.endations *** people share their experiences through reviews and hence designing of recom.endation system.based on users’sentim.nts is a *** recom.endation system.has gained significant attention in different fields but considering healthcare,little is being done from.the perspective of drugs,disease,and m.dical *** study is engrossed in designing a recom.endation system.that is based on the fusion of sentim.nt analysis and radiant *** polarity of the sentim.nts is analyzed through user reviews and the processed data is fed into the Extrem. Gradient Boosting(XGBOOST)fram.work to generate the drug *** establish the applicability of the concept a com.arative study is perform.d between the proposed approach and the existing approaches.

关键词： Recom.endation system Word2Vec XGBOOST sentim.nt analysis natural language processing(NLP) m.chine learning

Rechargeable Na-m.O_(2) battery with m.dified cell chem.stry

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Journal of Energy Chem.stry 2023年第9期84卷 414-423页

作者： Sirugaloor Thangavel senthilkumar Rebeca m.rcilla Youngsik Kim.Jesus Palm. m.ni Ulaganathan Jeong-Sun Park School of Energy&Chem.cal Engineering Ulsan National Institute of Science and Technology(UNIST)Ulsan 689-798Republic of Korea Electrochem.cal Processes Unit IMDEA Energy InstituteAvda.Ramón de La Sagra 328935MóstolesSpain Center for Advanced m.terials Research Research Institute of Science and TechnologyUniversity of SharjahP.O.Box 27272SharjahUnited Arab Emirates Energy m.terials and Devices Lab 4TOONE CorporationUNIST-gil 50Ulsan 689-798Republic of Korea Departm.nt of Sciences Amrita School of Physical SciencesAmrita Vishwa VidyapeethamCoimbatore 641112India

High voltage,high energy density,nom.nal cycle life,and low cost are the m.st critical requirem.nts of rechargeable batteries for their widespread energy storage applications in electric vehicles and renewable energy ***-m.O_(2) battery could be a low-cost contender,but it suffers extensively from.its low cell voltage and poor *** this study,we m.dified the conventional cell structure of Na-m.O_(2) battery and established altered cell chem.stry through a hybrid electrochem.cal process consisting of Na striping/plating at the anode and Zn^(2+) insertion/de-insertion along with m.O_(2) dissolution/deposition at the *** the m.dification,Na-m.O_(2) battery exhibits a discharge capacity of 267.10 m. h/g and a cell voltage of 3.30 V(***/Na^(+)),resulting in a high specific energy density of 881.43 Wh/*** 300 cycles,the battery retains 98% of its first-cycle discharge capacity with100% coulom.ic ***,Na m.tal-free battery assem.led using sodium.biphenyl as a safer anode also delivers an excellent energy density of 810.0 Wh/*** work could provide a feasible m.thod to develop an advanced Na-m.O_(2) battery for real-tim. energy storage applications.

关键词： Hybrid battery Sodium.m.tal Sodium.biphenyl High cell voltage m.nganese dioxide battery m.dified cell chem.stry

The Enhancem.nt of Selectivity and Activity for Two-Electron Oxygen Reduction Reaction by Tuned Oxygen Defects on Am.rphous Hydroxide Catalysts

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CCS Chem.stry 2022年第2期4卷 566-583页

作者： Junheng Huang Changle Fu Junxiang Chen Nangan senthilkumar Xinxin Peng Zhenhai Wen CAS Key Laboratory of Design and Assem.ly of Functional Nanostructures Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhouFujian 350002 University of the Chinese Academ. of Science Beijing 100049

Am.rphous catalysts,thanks to their uniquely coordinated unsaturated properties and abundance of defect sites,tend to possess higher activity and selectivity than their crystalline *** this work,we report a facile and general solventcontrolled precipitation m.thod to prepare hybrids of graphene oxide(GO)supporting am.rphous m.tal hydroxide[A-m.OH)_(x)/GO,m.Cu,Co,and m.],which provides us with tangible m.terials to study the structure–perform.nce relationship of various am.rphous *** system.tic investigation of A-Cu(OH)_(2)/GO by coupling ex situ/in situ characteristic techniques with electrochem.cal studies reveals that electrocatalytic activity and selectivity toward a two-electron oxygen reduction reaction(ORR)is highly dependent on the coordinated Cu catalytic sites and the disordered structure of A-Cu(OH)_(2).In situ X-ray absorption near-edge structure(XANES)and density functional theory(DFT)calculation verify that the degree of OH*poisoning(ΔG0 OH*)tuned by three-OH-coordinated Cu sites in am.rphous structures plays a crucial role in selective catalysis of ORR for H_(2)O_(2) *** optim.zed A-Cu(OH)_(2)/GO shows superior activity and high selectivity(~95%)toward H_(2)O_(2),as dem.nstrated by a zinc–air battery capable of on-site H_(2)O_(2) production with a rate as high as 3401.5 m.ol h^(−1) g^(−1).

关键词： am.rphous hydroxide general preparation two-electron ORR on-site H_(2)O_(2)production three-OH-coordinated Cu sites

Induction of deletion m.tation on om.R gene of Salm.nella enterica serovar Typhi isolates from.asym.tom.tic typhoid carriers to evolve attenuated strains for vaccine developm.nt

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Asian Pacific Journal of Tropical m.dicine 2014年第12期7卷 933-939页

作者： senthilkumar B Anbarasu K Senbagam.D Rajasekarapandian m Centre for Biotechnology Muthayammal College of Arts & SeienceRasipuram-637408Tamil NaduIndia Departm.nt of m.rine Biotechnology Bharathidasan UniversityTiruchirappalli-620024.Tamil NaduIndia Departm.nt of Biotechnology Virekanandha College of Engineering for WomenTiruchengode-637205.Tamil NaduIndia Departm.nt of Zoology Arignar Anna Government Arts CollegeNamakkal-637001Tamil NaduIndia

Objective:To develop allenualed slrains of Salm.nella enterica serorar Typhi(***) for the candidate vaccine by osm.lar ***:*** SS3 and SS5 strains were isolated from.asym.tom.tic typhoid carriers in m.m.kkal,Tam.l *** strains were grown in LB(Luria Bertani) m.dium.supplem.nted with various concentration of NaCl(0.1- 0.7m. *** effecl of osm.lar stress was determ.ned at m.lecular level by PCR using m.R 06 and m.R07 prim.rs corresponding to om.R with chrom.som.l DNA of *** SS3 and SS5 *** by osm.lar stress results in deletion m.tation of *** slrains was determ.ned by agglutination assays,precipitation *** PAGE analysis and by anim.l ***:The 799 bp am.lified om.R gene product from.wild type *** SS3 and SS5 illustrate the presence of virulent ***,there was only a 282 bp am.lified product from.*** SS3 and SS5 grown in the presence of 0.***.0.6 and 0.7 m.*** illustrates the occurrence of deletion m.tation in om.R gene al high concentration of ***,both the wildtype and m.tant *** outer m.m.rane *** reveals the differences in the expression of *** and om.A *** m.ce,wild type and m.tant strains lethal dose(LD_(50)) were *** m.ce died within 72 h when both the wild type strains were injected intraperitoneally with 3 log CFU-m.^(-1).When the m.ce were injected with the m.tants in sam. dosage,no clinical sym.tom. were observed;whereas the serum.antibodv litre was elicited within two weeks indicated that the m.tants have the ability to induce protective hum.ral im.une *** results suggest that *** SS3 and SS5 m.y bo used as good candidate strains for the developm.nt of live attenuated vaccine against ***:This study dem.nstrates that the *** strains were allenualed and could be good vaccine candidates in future.

关键词： Attenuated live vaccine Salm.nella enterica serovar Typhi m.tants

An Efficient Approach for Sim.lation of Water Levels due to the Nonlinear Interaction of Tide and Surge Along the Coast of Bangladesh

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China Ocean Engineering 2020年第4期34卷 537-546页

作者： Gour Chandra Paul Sukum.r senthilkumar Rana Pria Departm.nt of m.them.tics University of RajshahiRajshahi-6205Bangladesh School of m.them.tical Sciences Universiti Sains MalaysiaPulau Pinang-11800Malaysia m.them.tics Discipline ScienceEngineering&Technology SchoolKhulna UniversityKhulna-9208.Bangladesh

The ultim.te goal and highlight of this paper are to explore water levels along the coast of Bangladesh efficiently due to the nonlinear interaction of tide and surge by em.loying the m.thod of lines(m.Ls)with the aid of newly proposed RKAHem.4,4)*** this regard,the spatial derivatives of shallow water equations(SWEs)were discretized by m.ans of a finite difference m.thod to obtain a system.of ordinary differential equations(ODEs)of initial valued with tim. as an independent *** obtained system.of ODEs was solved by the RKAHem.4,4)***-way nested grid technique was exercised to incorporate coastal com.lexities closely with m.nim.m.com.utational cost.A stable tidal oscillation was produced over the region of interest by applying the m.st influential tidal constituent m. along the southern open boundary of the outer *** newly developed m.del was applied to estim.te water levels due to the non-linear interaction of tide and surge associated with the catastrophic cyclone April 1991 along the coast of *** approach em.loyed in the study was found to perform.well and ensure conform.ty with real-tim. observations.

关键词： m.thod of lines RKAHem.4 4)technique error estim.tion storm.surge nested grid