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Con.rolled Syn.hesis an. Growth of Perfect Platin.m n.n.cubes Usin. a Pair of Low-Resistivity Fasten.d Silicon.Wafers an. Their Electrocatalytic Properties

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n.n. Research 2011年第6期4卷 541-549页

作者： Jiten.ra n. tiwari rajan.sh n. tiwari Kun.in.Lin Departmen. of Materials Scien.e an. En.in.erin. National Chiao Tung University 1001 Ta Hsueh Road Hsinchu Taiwan 30050China Cen.er for Superfun.tion.l Materials Department of Chemistry Pohang University of Science and Technology San 31 Hyojadong NamguPohang 790-784 South Korea n.tion.l n.n. Device Laboratories No. 26 Prosperity Road I Science-Based Industrial Park Hsinchu Taiwan 30078 China

Perfect platin.m （Pt） n.n.cubes with high den.ity have been.syn.hesized by con.rolled reduction.of hexachloroplatin.c acid in.the presen.e of H2SO4 an. HCl, employin. a pair of low-resistivity fasten.d silicon.（FS） wafers at room temperature. The presen.e of the additive charges （in.uced by prior etchin. of the silicon.surface with HF to remove an. SiO2 layer） between.the in.erfaces of the FS surface results in.a high charge den.ity an. facilitates fast deposition.of Pt n.n.particles via electroless platin.. The charge den.ity, stirrin. time, an. homogen.ity of the aqueous solution.in.luen.ed the geometrical shapes of the Pt n.n.particles. The parameters were fin.ly tun.d in.order to con.rol the n.cleation.an. growth rates an. obtain.perfect Pt n.n.cubes. The perfect Pt n.n.cubes were sin.le crystallin. with exposed {100} facets. Per equivalen. Pt surface areas, the perfect Pt n.n.cubes showed en.an.ed catalytic activity relative to trun.ated Pt n.n.cubes or spherical Pt n.n.particles for the electrooxidation.of liquid feed fuels such as methan.l an. ethan.l. Moreover, there a stron. correlation.was observed between.the optical, electrical, thermal, magn.tic, an. catalytic properties of the perfect Pt n.n.cubes which should lead to a variety of techn.logical application. of these materials.

关键词： Fasten.d silicon.wafers charge den.ity Pt n.n.cubes catalytic activity liquid feed fuel cells

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Secon.ary X-Ray En.iron.en. in.the Lower Atmosphere of the Earth durin. Mon.oon.Season.over Udaipur City （In.ia） in.July-September 2006

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Chin.se Physics Letters 2009年第8期26卷 381-384页

作者： S. n. A. Jaaffrey shubhra tiwari Laboratory of Astron.my an. Astrophysics Department of Physics University College of Science M. L. Sukhadia University UDAIPUR (Raj.)-313001 India

We presen. a study on.the secon.ary x-rays of en.rgy ban. 2-100 keV emitted by the in.ruded prin.ipal pollutan. compon.n.s （gases an. min.rals） brought up in.the lower atmosphere by dust storms, mon.oon.drift an. the gravitation.l pull on.meteoritic showers. On.the groun. we employed a 1.5 × 1 in.h^2 n.I crystal in.a scin.illation.detector, suitable for the en.rgy ran.e 2-100 keV of secon.ary x-rays, providin. better en.rgy resolution.than.a larger sized crystal. In.order to elimin.te the radioactive backgroun. of the Earth, the detector was well shielded on.all sides with the help of the lead （Pb） con.ain.r, except with *** open.win.ow at the top to permit on.y vertically in.iden. secon.ary radiation. The results from the data an.lysis obtain.d durin. the mon.oon.over Udaipur city （In.ia） durin. the period from July to September （2006） have revealed a lin.ar correlation.between.dust storm cure mon.oon.clouds an. observed lumin.sities of secon.ary x-ray radiation.from in.ruded pollutan.s. We foun. in.en.e flux of secon.ary x-rays from the in.ruded pollutan.s when.heavy dust an. mon.oon.clouds were brought up by dust storms an. mon.oon.drift in.the lower atmosphere over Udaipur city as compared to n.rmal days. Thus, secon.ary x-rays in.the en.iron.en. provide a tool for in.estigation.of local in.rusive pollutan. compon.n.s in.the lower atmosphere.

关键词： sea surface n.n.iear in.eraction n.merical method

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Un.catalyzed tan.em Kn.even.gel-Michael reaction.for the syn.hesis of 4,4'-(arylmethylen.)bis(1H-pyrazol-5-ols)in.aqueous medium

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Chin.se Chemical Letters 2011年第12期22卷 1415-1418页

作者： n.lesh P.Tale Girdharilal B.tiwari n.n.kishor n.Karade Departmen. of Chemistry Rashtrasant Tukadoji Maharaj Nagpur UniversityNagpurMaharashtra 440 033India

An.en.iron.en.ally ben.gn.un.catalyzed on.-pot syn.hesis of 4,4＇-（arylmethylen.）bis（1H-pyrazol-5-ols） has been.reported via tan.em Kn.even.gel-Michael reaction.of aldehydes with two equivalen.s of 3-methyl-1-phen...

关键词： Kn.even.gel reaction Michael addition Aldehydes 3-Methyl-1-phen.l-1H-pyrazol-5(4H)-on. Aqueous medium

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Utilization.an. Felt n.ed of Oral Health Care Services amon. Women.in.Chen.ai-Descriptive Cross-Section.l Study

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Journ.l of Health Scien.e 2018年第4期6卷 278-287页

作者： n. Ven.ata Abin.ya rajan Patil Bagvan.as SRM In.titute of Scien.e an. Techn.logy Kancheepuram 603203 India

In.roduction. Oral health is win.ow to overall health. There is a greatest burden.of oral diseases on.the un.erprivileged group. In.developin. coun.ries like In.ia the affordability to oral health care services is very limited thereby leadin. to poor oral welln.ss ＆ million. suffer in.ractable toothache an. poor quality of livin. an. en. up with few den.ition. Objective： To assess the utilization.level of oral health services amon. women.in.Chen.ai. Material an. methods： A cross-section.l question.aire survey was con.ucted amon. 200 women.in.Teyn.mpet Zon. in.Chen.ai District, Tamil n.du. The women.were chosen.by simple ran.om samplin. an. were in.erviewed usin. the semi-stzuctured question.aire to assess their utilization.level durin. the period of Jun. to July 2016. The data were an.lyzed by SPSS Version.22. Result： Descriptive statistics an. multivariate an.lysis--MAn.VA were used to an.lyze the utilization.level. Majority of the respon.en.s were in.the age group of 30-35years, most of the respon.en.s had oral problem an. almost everyon. had visited den.ist at least on.e within.3 years. Multivariate an.lysis--MAn.VA also showed that the utilization.levels were directly in.luen.ed by accessibility, availability an. affordability an. showed statistical sign.fican.e （p value 〈 0.05） an. also from MAn.VA an.lysis it showed that the respon.en.s who had poor oral hygien. did n.t utilize oral health care services as the affordability was a problem although accessibility an. availability was adequate. Con.lusion. Our fmdin.s suggest that people who had oral problem had visited den.ist in.previous 3 years an. most of the people who visited den.ist had a good oral hygien.. Cost of the treatmen. affected the den.al visits. They believed that visitin. the den.ist is n.cessary on.y for pain.relief.

关键词： Chen.ai oral health oral health problems utilization.of oral health care services women.oral healfll.

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Tun.el Diode Loaded Microstrip An.en.a with Parasitic Elemen.s

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Journ.l of Electromagn.tic An.lysis an. Application. 2012年第4期4卷 177-181页

作者： Rakesh n. tiwari Prabhakar Sin.h Departmen. of Electron.cs an. Commun.cation.En.in.erin. Raffles University Neemrana India

The presen. work describes the circuit model based an.lysis of symmetrically tun.el diode loaded microstrip an.en.a with parasitic elemen.s. To optimize the an.en.a characteristics, a systematic study has been.carried out as a fun.tion.of tun.el diode bias voltage, space between.parasitic patch an. fed patch. The results obtain.d from an.en.a radiation.pattern.depict that an.improvemen. of 5.8 MHz in.ban.width can.be achieved if the symmetrically tun.el diode is loaded with patch alon. with parasitic elemen.s of gap (s) = 3.6 cm. It has also been.n.ted that at this state the radiation. are more powerful i.e. 0.5647 dB as compared to sin.le patch design.

关键词： Microstrip An.en.a Symmetrically Tun.el Diode Loaded Patch an. Parasitic Patch

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In.Situ Domestic Load Harmon.c Detection.an. Reduction.Based on.GLRM Algorithm for Optimum Filter Excerpt

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Circuits an. Systems 2016年第9期7卷 2095-2108页

作者： Deepthi Joseph n. Kalaiarasi K. rajan Departmen. of Electrical an. Electron.cs En.in.erin. Vel Tech Engineering College Anna University Chennai India Departmen. of Electrical an. Electron.cs Engineering R. M. K. C. E. T Anna University Chennai India

Power Quality measures the reliable operation.between.the system an. to the con.ected loads of same system. A poor power quality causes physical damage to the equipmen. an. also results in.lower productivity with in.rease in.en.rgy costs. Power disturban.es ran.e from micro secon.s to hours an. the prolon.ed disturban.es in.hours would damage the equipmen.s. The power quality decreases due to growth of n.n.in.ar loads in.domestic applian.es, such as home Un.n.errupted Power Supplies (UPS), In.uction.stove, Television.etc. n.wadays Domestic loads are con.rolled or powered with power electron.c devices. The power electron.c devices with Direct Curren. (DC) compon.n.s gen.rate high frequen.y sign.l for DC-Altern.tin. Curren. (AC) con.ersion. The con.ersion.in.roduces multiple frequen.ies in.the AC power supply. The multiple frequen.ies in.AC power supply are called as harmon.cs. The harmon.cs in.AC supply affects the lifetime of home applian.es, con.umes more electric curren., affects the power factor, tran.former efficien.y, an. other electricity supply systems. Till n.w, to avoid harmon.cs, the filters are erected on.y in.in.ustrial loads or in.the substation.. In.this paper a n.vel method to detect an. con.rol harmon.cs in.domestic applian.es is proposed. Harmon.c con.rol with various filters in.the filter ban., based on.detection.of harmon.c voltage let out from the domestic applian.es for power savin.. To select the appropriate filter to improve power quality, we apply a n.vel Gen.tic Algorithm based Lin.ar Regression.Method (GLRM) algorithm for optimum Filter Selection. From the results we were able to reduce the total harmon.c distortion.level to 3.68%.The curren. con.umption.of each household applian.e is reduced con.iderably an. fin.lly the electricity bill is reduced to 15% an. overall system efficien.y improves to 85%.

关键词： Power Quality Domestic Applian.es Harmon.c Detection Harmon.c Con.rol Filter GLRM Algorithm

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Secure an. En.rgy Efficien. Design.of Multi-Modular Expon.n.ial Techn.ques for Public-Key Cryptosystem

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Journ.l of Commun.cation. an. In.ormation.n.tworks 2022年第3期7卷 309-323页

作者： Utkarsh tiwari Satyan.rayan. Vollala n.Ramasubraman.an.B.Sameedha Begum G.Lakshmin.rayan.n Departmen. of Computer Scien.e an. En.in.erin. IIIT Naya RaipurChhattisgarh 493661India n.tion.l In.titute of Techn.logy Trichy Tamilnadu 620015India

The presen. paper proposes a secure design.of the en.rgy-efficien. multi-modular expon.n.ial techn.ques that use store an. reward method an. store an. forward *** of the multi-modular expon.n.iation.can.be performed by three n.vel algorithms:store an. reward,store an. forward 1-bit(SFW1),an. store an. forward 2-bit(SFW2).Hardware realization. of the proposed algorithms are an.lyzed in.terms of throughput an. *** experimen.al results show the proposed algorithms SFW1 an. SFW2 in.rease the throughput by orders of 3.98% an. 4.82%,reducin. the power by 5.32% an. 6.15% an. savin. the en.rgy in.the order of 3.95% an. 4.75%,*** proposed techn.ques can.preven. possible side-chan.el attacks an. timin. attacks as a con.equen.e of an.in.uilt con.usion.*** Vivado-21 on.Virtex-7 evaluation.board an. in.egrated computer application.for recogn.zin. user services(ICARUS)Verilog simulation.an. syn.hesis tools are used for field programmable gate array(FPGA)for hardware *** hardware compatibility of proposed algorithms has also been.checked usin. Caden.e for application.specific in.egrated circuit(ASIC).

关键词： public-key cryptography RSA multimodular expon.n.iation modular multiplication Mon.gomery multiplication

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Capitalizin. on.multi-elemen. in.eraction. through bal-an.ed n.trition.—A pathway to improve n.trogen.use efficien.y in.Chin.,In.ia an. n.rth America

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Scien.e Chin.(Life Scien.es) 2005年第Z2期48卷 780-790页

作者： Paul E.Fixen.K.n.tiwari Mark D.Stauffer Potash & Phosphate In.titute Brookin.s SD 57006USA Potash & Phosphate In.titute of Can.da Midtown.Plaza SK S7K 1J5Canada

A viable option.for in.reasin. n.trogen.(n. use efficien.y an. mitigation.of n.gative impacts of n.on.the en.iron.en. is to capitalize on.multi-elemen. in.eraction. through implemen.ation.of n.trien. man.gemen. programs that provide balan.ed n.trition. n.merous studies have demon.trated the immediate efficacy of this approach in.the developin. region. like Chin. an. In.ia as well as developed coun.ries in.n.rth America. Based on.241 site-years of experimen.s in.these coun.ries, the first-year n.recovery efficien.y (RE) for the con.en.ion.l or check treatmen.s averaged 21% while the balan.ed treatmen.s averaged 54% RE, for an.average in.rease of 33% in.RE due to balan.ed n.trition. Effective policies to promote adoption.are most likely those that en.ble site-specific approaches to n.trien. man.gemen. decision. rather than.sweepin., n.tion.wide in.en.ives supportin. on. n.trien. over an.ther. Local farmers, advisers an. officials n.ed to be empowered with tools an. in.ormation.to help them defin. n.cessary chan.es in.practices to create more balan.ed n.trien. man.gemen..

关键词： capitalizin., balan.ed n.trition. n.trogen use efficien.y.

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Tree species composition.an. diversity in.mon.an. forests of Garhwal Himalaya in.relation.to en.iron.en.al an. soil properties

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Journ.l of Moun.ain.Scien.e 2020年第12期17卷 3097-3111页

作者： Din.sh Sin.h RAWAT P.tiwari Sudipta Kumar DAS J.K.tiwari Departmen. of Botan.&Microbiology HNB Garhwal UniversitySrinagar(Garhwal)-246174UttarakhandIndia Cen.ral n.tion.l Herbarium Botanical Survey of IndiaHowrah-711103West BengalIndia

The mon.an. forests of Garhwal Himalaya were in.estigated for tree species composition.an. diversity in.relation.to en.iron.en.al an. edaphic variables.A stratified ran.om samplin. approach was adopted to collect the field data from each forest.A total of 39 tree species belon.in. to 31 gen.ra an. 23 families were recorded from the samplin. area(6 forest stan.s ×10 plots in.each).Lauraceae with 5 species was the largest family while Quercus(4 species) emerged as the largest ***-area curve(asymptote) predicted more species than.the observed n.mber of *** an.lysis has shown.that the two Abies pin.row domin.n. forest stan.s had the highest similarity in.tree species *** tree stem den.ity ran.ed from 540-1170 ha-1,basal area 23.01-55.94 m^2 ha-1,shan.on.ien.r diversity in.ex 1.69-2.49,even.ess in.ex0.42-0.74,beta diversity 0.40-0.82 an. similarity in.ex 0.17-0.54 in.the six studied ***-way in.icator species an.lysis(TWIn.PAn. iden.ified four distin.t tree commun.ties in.the study area with Daphn.phyllum himalayen.e,Abies pin.row,Quercus oblon.ata,an. Pin.s roxburghii as in.icator species of correspon.in. *** correspon.en.e an.lysis(CCA) ascertain.d the TWIn.PAn.results an. revealed the relation.of tree species with en.iron.en.al an. edaphic *** phytosociological attributes of tree species varied from on. forest stan. to an.ther;however,the tree species richn.ss,den.ity,an. diversity peaked at in.ermediate elevation.on.the n.rth *** reveal that tree composition.an. diversity in.the mon.an. forests of Garhwal Himalaya are in.luen.ed by both en.iron.en.al(elevation.an. slope aspect)an. soil variables(texture,water holdin. capacity,moisture con.en.,available n.exchan.eable P,an. pH).This study will help in.un.erstan.in. the forest distribution.across the western.Himalaya,guidin. the con.ervation.sts an. policymakers in.carryin. out con.ervation.related man.gemen. activities,design.n. the lon.-

关键词： Diversity Tree species Mon.an. forests Soil properties Western.Himalaya

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Laser-Heated Diamon.-An.il Cell (LHDAC) in.Materials Scien.e Research

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Journ.l of Materials Scien.e & Techn.logy 2003年第6期19卷 518-525页

作者： n.V.Chan.ra shekar P.Ch.Sahu K.Govin.a rajan Materials Scien.e Division Indira Gandhi Centre for Atomic Research Kalpakkam 603 102 Tamil Nadu IndiaMaterials Science Division Indira Gandhi Centre for Atomic Research Kalpakkam 603 102 Tamil Nadu IndiaMaterials Science Division Indira Gandhi Centre for Atomic Research Kalpakkam 603 102 Tamil Nadu India

Laser-heated diamon.-an.il cell (LHDAC) is emergin. as the most suitable, econ.mical an. versatile tool for the measuremen. of a large spectrum of physical properties of materials un.er extreme pressure an. temperature con.ition.. In.this review, the recen. developmen.s in.the in.trumen.ation. pressure an. temperature measuremen. techn.ques, results of experimen.al in.estigation. from the literature were discussed. Also, the future scope of the techn.que in.various aven.es of scien.e was explored.

关键词： Laser heatin. Diamon.-an.il cell High pressure-high temperature Materials syn.hesis,Meltin. phen.men. Phase equilibria

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