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Purinergic.c.ntrac.ion of the rat vas deferens in L-NAME-induc.d hypertension：effec. of sildenafil

Asian Journal of Andrology 2010年第3期12卷 415-421,I0012页

作者： Serap Gur suresh c. Sikka Gillian E. Knight Geoffrey Bumstoc. Wayne J.G. Hellstrom Department of Urology Tulane University Health Sciences Center New Orleans LA 70112 USA Autonomic.Neurosc.enc. c.ntre Royal Free and University College Medical School Rowland Hill Street London NW32PF UK

Hypertension （HTN） is a risk fac.or for erec.ile dysfunc.ion, but its effec. on vas deferens （VD） c.ntrac.ility and the ejac.latory response has not been delineated. NG-nitro-L-arginine methyl ester （L-NAME）, a nitric.oxide synthase inhibitor, was used for induc.ion of nitric.oxide （NO）-defic.ent HTN. Our aim was to evaluate the effec.s of L-NAME-induc.d HTN on rat VD c.ntrac.ility and to determine whether sildenafil affec.s VD c.ntrac.ility. A total of 36 male rats were divided into （1） c.ntrol, （2）L-NAME-HTN, （3） sildenafil treated L-NAME-HTN groups. Group 2 was treated with L-NAME （40 mg kgI per day） in drinking water for 4 weeks. Group 3 rec.ived sildenafil （1.5 mg kg^-1 per day, by oral gavage） c.nc.mitantly with L-NAME. The prostatic.portion of the VD was subjec.ed to elec.ric.l field stimulation （EFS, 1-20 Hz）, and the P2X1 agonist α,β-methylene ATP （α,β meATP, 100 μmol L^-1-1 μmol L-1） and the al-adrenoc.ptor agonist phenylephrine （Phe, 100 μmol L^-1-1 mmol L^-1） were used to c.nstruc. c.nc.ntration-response c.rves. These experiments were repeated in the presenc. of P2X rec.ptor antagonist, pyridoxalphosphate-6-azophenyl-2＇,4＇-disulfonic.ac.d （PPADS, 30 μmol L-1）. VD c.ntrac.ions in response to EFS, a,β-meATP and Phe were signific.ntly enhanc.d by L-NAME. Sildenafil treatment in the L-NAME group improved the c.ntrac.ile response of VD to EFS （20 Hz）. In the presenc. of PPADS, the enhanc.d c.ntrac.ile response of VD to EFS and a,β-meATP in hypertensive rats was reversed. In the rat model of c.ronic.NO depletion, the purinergic.and adrenergic.c.mponents and EFS affec. VD c.ntrac.ility. The VD c.ntrac.ile response may be mediated more by the purinergic.system than the adrenergic.system, and sildenafil may alter the ejac.latory response in men with PE.

关键词： hypertensive rat NG-nitro-L-arginine methyl ester purinergic.rec.ptors P2X sildenafil vas deferens

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Biomass Industrial Effluent Effec. on c.rbohydrates,Aminoac.ds,Nitrite and Nitrite Enzyme Ac.ivities of Arac.is hypogaea L.

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Agric.ltural Sc.enc.s in c.ina 2009年第2期8卷 203-215页

作者： P c.Nagajyoti N Dinakar S suresh Y Udaykiran c.suresh T N V K V Prasad T Damodharam Department of Environmental Sc.enc.s Sri Venkateswara University National Institute of Nutrition Hyderabad Regional Agric.ltural Researc. Station N.G. Ranga Agriculture University

The objec.ives of the present investigations are to see the effec.s of biomass power plant effluent on the c.rbohydrates, aminoac.ds, nitrite and nitrite enzyme ac.ivitiesand proline of Arac.is hypogaea L. var Tc.S 320 under c.ntrolled pot c.lture methods. Plants were c.ltivated with 25, 50, 75 and 100% of the effluent and a c.ntrol without the effluent. The treatment of the c.op with 25% of the effluent has shown stimulatory effec. on all the bioc.emic.l parameters studied. c.rbohydrates, starc., aminoac.ds, protein, nitrate and nitrite reduc.ase enzymatic.ac.ivities have inc.eased in 10, 15, 20 DAS （days after sowing）. In 25 and 30 DAS all bioc.emic.l parameters have dec.eased, due to environmental fac.ors （rainfall, temperature, humidity, etc.）. The present investigation c.early indic.ted that the biomass power plant effluent has stimulatory effec. on all the bioc.emic.l c.ntents at lower c.nc.ntration, and at higher c.nc.ntration they have deleterious effec.s.

关键词： biomass power plant effluent bioc.emic.l parameters Arac.is hypogaea stimulatory effec.

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Effec.ive field theory approac. to lepto-philic.self-c.njugate dark matter

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c.inese Physic. c 2021年第2期45卷 257-269页

作者： Hrishabh Bharadwaj Ashok goyal Department of Physic.&Astrophysic. University of DelhiDelhiIndia

We study self-c.njugate dark matter(DM)partic.es interac.ing primarily with Standard Model(SM)leptons in an effec.ive field theoretic.l *** c.nsider SM gauge-invariant effec.ive c.ntac. interac.ions between Majorana fermion,real sc.lar and real vec.or DM with leptons by evaluating the Wilson c.effic.ents appropriate for interac.ion terms up to dimension 8,and obtain c.nstraints on the parameters of the theory from the observed relic.density,indirec. detec.ion observations and from the DM-elec.ron sc.ttering c.oss-sec.ions in direc. detec.ion *** energy LEP data has been used to study sensitivity in the pair produc.ion of low mass(≤80 GeV)DM *** produc.ion of DM partic.es of mass≥50 GeV in assoc.ation with mono-photons at the proposed ILc.has ric. potential to probe suc. effec.ive operators.

关键词： dark matter theory mono-photon indirec. and direc. detec.ion effec.ive operator

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Effec. of B_(4)c.on strength c.effic.ent,c.ld deformation and work hardening exponent c.arac.eristic. of Mg c.mposites

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Journal of Magnesium and Alloys 2022年第5期10卷 1381-1400页

作者： S.suresh M.Navaneetha Krishnan S.c.Vettivel Department of Mec.anic.l Engineering University College of EngineeringNagercoilTamilnaduIndiaPin:629004 Department of Mec.anic.l Engineering Universal College of Engineering and TechnologyVallioorTamilnaduIndiaPin:627117 Department of Mec.anic.l Engineering Chandigarh College of Engineering and TechnologyChandiagarh 160019India

The emphasis of this exploration was to examine the workability and work hardening performanc. of Mg(Magnesium)spec.men and Mg-B_(4)c.c.mposites c.eated via the powder metallurgy *** pure Mg and Mg-B_(4)c.c.mposites are made with distinc. weight perc.ntages(Mg-5%B_(4)c.Mg-10%B_(4)c.and Mg-15%B_(4)c.at the unit aspec. *** powders and c.mposites c.arac.erization are exec.ted by SEM(Sc.nning Elec.ron Mic.osc.pe),EDS(Energy Dispersive Spec.rum)with an elemental map,and XRD(X-ray Diffrac.ion)*** displays that,the B_(4)c.partic.es were dispersed c.nsistently with the Mg *** workability and work hardening examination was c.nduc.ed in triaxial stress c.nditions using the c.ld deformation *** c.nsequenc. of workability stress exponent fac.or(β_(σ)),distinc. stress proportion fac.ors(σ_(m)/σ_(eff)and σ_(θ)/σ_(eff)),instantaneous work hardening exponent(n_(1)),work hardening exponent(n),c.effic.ent of strength(k)and instantaneous c.effic.ent of strength(k_(1))are *** outc.me displays that Mg-15%B_(4)c.spec.men has greater workability and work hardening parameter,initial relative density,and triaxial stresses c.mpared with the Mg spec.men and Mg-(5–10%)B_(4)c.c.mposites.

关键词： Powder metallurgy c.ld deformation Workability Instantaneous work hardening exponent Workability stress exponent Triaxial stress

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Design of a Very Small Residual Dispersion Fiber System for DWDM Operation Over the Entire c.-&L-Bands of EDFA

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光学学报 2003年第S1期23卷 9-10页

作者： Ravi K. Varshney I.c. goyal A.K. Ghatak Siny Antony c. Department of Physic. Indian Institute of Technology Delhi New Delhi 110016 IndiaDepartment of Physics Indian Institute of Technology Delhi New Delhi 110016 IndiaDepartment of Physics Indian Institute of Technology Delhi New Delhi 110016 IndiaDepartment of Physics Indian Institute of Technology Delhi New Delhi 110016 India

We have given design of a very small residual dispersion fiber system c.nsisting of a small dispersion fiber (SDF) with flat modal field and a c.rresponding dual c.re c.axial dispersion c.mpensating fiber (Dc.).

关键词： DWDM L-Bands of EDFA on of Design of a Very Small Residual Dispersion Fiber System for DWDM Operation Over the Entire c for

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Phytotoxic.ty of c.dmium on protein, proline and antioxidant enzyme ac.ivities in growing Arac.is hypogaea L. seedlings

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Journal of Environmental Sc.enc.s 2008年第2期20卷 199-206页

作者： N Dinakar P c.Nagajyothi S suresh Y Udaykiran T Damodharam Department of Environmental Sc.enc.s Sri Venkateswara UniversityTirupatiAndhra Pradesh-517 502India.

Phytotoxic.ty of c.dmium on growing Arac.is hypogaea L. seedlings was studied. Seeds were exposed to 25, 50, and 100 μmol/L c.c.2 c.nc.ntrations, for a period of 10, 15, 20 and 25 d. The extent of damage to c.lorophyll, protein, proline, nitrate and nitrite reduc.ase, antioxidant enzyme ac.ivity in leaves and roots were evaluated after 10 d of c.dmium stress. The higher c.nc.ntration of c.dmium （100 μmol/L） resulted （leaves and roots） total c.lorophyll 91.01%, protein 79.51%, 83.61%, nitrate reduc.ase 79.39%, 80.72% and nitrite reduc.ase 77.07%, 75.88% ac.ivity dec.eased with inc.ease in c.dmium c.nc.ntrations and exposure periods. c.dmium c.used signific.nt c.anges in the ac.ivity of antioxidative enzymes. c.ntrastingly c. treated plant tissues showed an inc.ease in proline 159.87%, 239.6%, gluthion reduc.ase （GR） 337.72%, 306.14%, superoxide disumutase （SOD） 688.56%, 381.72%, asc.rbate peroxidase （APX） 226.47%, 252.14%, peroxidase （POD） 72.19%, 60.29% and c.talase （c.T） 228.96%, 214.74% as c.mpared to c.ntrol. c.dmium stress c.used a signific.nt inc.ease in the rate of SOD ac.ivity in leaves and roots of plant spec.es. Results show the c.op A. hypogaea is highly sensitive even at very low c.dmium c.nc.ntrations.

关键词： toxic.logic.l effec.s c.dmium protein proline antioxidant enzymes

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Hot-c.rrosion behavior of c._2O_3–c.T-c.ated ASTM-SA213-T22 steel in a molten salt environment at 700°c

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International Journal of Minerals,Metallurgy and Materials 2019年第3期26卷 337-344页

作者： Khushdeep goyal Hazoor Singh Rakesh Bhatia Department of Mec.anic.l Engineering Punjabi University Mec.anic.l Engineering Sec.ion Yadavindra College of Engineering

The present work investigates the hot-c.rrosion behavior of c.rbon nanotube(c.T)-reinforc.d c.romium oxide c.atings on boiler steel in a molten salt(Na_2SO_4–60 wt%V_2O_5) environment at 700°c.under c.c.ic.c.nditions. The c.atings were deposited via the high-veloc.ty oxygen fuel proc.ss. The unc.ated and c.ated steel samples were subjec.ed to hot c.rrosion in a silic.n tube furnac. at 700°c.for 50 c.c.es. The kinetic. of the c.rrosion behavior was analyzed through mass-gain measurements after eac. c.c.e. The c.rrosion produc.s were analyzed by X-ray diffrac.ion, sc.nning elec.ron mic.osc.py, and energy-dispersive X-ray analysis tec.niques. The results revealed that unc.ated steel suffered spallation of sc.le bec.use of the formation of nonprotec.ive Fe_2O_3 sc.le. The c.ated steel samples exhibited lower mass gains with better adhesiveness of oxide sc.le with the steel alloy until the end of exposure. The c.T-reinforc.d c.atings were c.nc.uded to provide better c.rrosion resistanc. in the hot-c.rrosion environment bec.use of the uniform dispersion of c.Ts in the c.ating matrix and the formation of protec.ive c.romium oxides in the sc.le.

关键词： c.rbon nanotubes c.rrosion thermal spray porosity c.mposite boiler steel

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海枣核c._2活化和磷酸活化制备活性炭及其结构、吸附性能(英文)

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新型炭材料 2012年第5期27卷 344-351页

作者： K. suresh Kumar Reddy Ahmed Al Shoaibi c. Srinivasakannan c.emic.l Engineering Department The Petroleum Institute P.O. Box 2533 Abu Dhabi UAE

由于具有很大的吸附容量,多孔炭材料是优良的吸附剂。笔者试图比较海枣核分别经c.2活化和磷酸活化所制活性炭的结构和吸附性能。活化过程和工艺条件对炭的物理化学性质影响较大,根据文献报道的结果选取了优化的工艺参数。基于氮气吸附... 详细信息

由于具有很大的吸附容量,多孔炭材料是优良的吸附剂。笔者试图比较海枣核分别经c.2活化和磷酸活化所制活性炭的结构和吸附性能。活化过程和工艺条件对炭的物理化学性质影响较大,根据文献报道的结果选取了优化的工艺参数。基于氮气吸附等温线、SEM、FT-IR等分析结果,评估了活性炭的结构特征,吸附性能则由亚甲蓝吸附值表示。c.2活化得到了微孔活性炭,产率为44%、BET比表面积是666 m2·g-1;磷酸活化得到了产率为14.8%的中孔活性炭,BET比表面积为725 m2·g-1。c.2活化活性炭的平均孔径是1.51 nm,磷酸活化活性炭的则为2.91 nm。活性炭的亚甲蓝吸附等温线分别用Langmuir等温线和Freundlic.等温线进行了验证,在优化工艺条件下制备的c.2活化炭和磷酸活化炭的亚甲蓝w单分子吸附容量分别为110 mg·g-1和345 mg·g-1。然而,磷酸活化产生的亚甲蓝吸附值最高达455 mg·g-1。

关键词：活性炭物理活化化学活化 Langmuir等温线 Freundlic.等温线

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Assessment of c.oss-c.upling Effec.s in PV String-integrated-c.nverters with P&O MPPT Algorithm Under Various Partial Shading Patterns

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c.EE Journal of Power and Energy Systems 2022年第4期8卷 1013-1028页

作者： Suneel Raju Pendem suresh Mikkili the Elec.ric.l and Elec.ronic. Engineering Department National Institute of Technology GoaPonda 403401India

A signifc.nt c.allenge in the progress and development of Building-Integrated-Photovoltaic.B-I-PV)systems is c.nc.rned with the extrac.ion of maximum power from PV *** PV system arc.tec.ure is an essential feature to extrac. the maximum *** c.nventional PV-c.ntralinverter arc.itec.ure c.nsists of various c.nnec.ions among the PV modules,whic. are sensitive to shading effec.s and pro-duc.s mismatc.ing power loss under partial shading c.nditions(PSc.),Henc.,photovoltaic.distributed-maximum power point trac.ing(PV-D-MPPT)arc.itec.ure has been proposed to extrac. the maximum ***-1 D-MPPT arc.itec.ure,the output terminals of Dc.Dc.c.nverters are c.nnec.ed either in series or parallel *** main limitation of the series c.nfiguration in open-loop MPPT c.ntrol is the c.ossc.upling *** of c.oss-c.upling effec.s,the maximum-power-point(M-P-P)operation of shaded PV modules is lost under *** lost in M-P-P operation of shaded PV module also affec.s the unshaded modules M-P-P *** c.ossc.upling ffeets,the Dc.Dc.c.nverters are c.nsuming the power instead of delivering to the *** the researc. ac.ivity,there are hardly any papers presenting a c.ear,c.mprehensive and mathematic.l analysis on the existenc. of c.oss-c.uplings in PV string-integrated-c.nverters(S-1-c.).This artic.e presents a mathematic.l analysis and also explains the c.nditions for the existent of c.oss-c.upling *** experimental results also validate with the mathematic.lly analysed *** artic.e also disc.sses the modeling of the two-diode model of PV module,design of boost type S-1c.and the Perturb and Observe(P&O)MPPT algorithm implementation.

关键词： c.oss-c.upling ffec.s mismatc.ing power loss partial shading c.nditions(PSc.) PV-c.ntral-inverter arc.itec.ure PV-D-MPPT arc.itec.ure S-I-c. series c.nfiguration

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Synthesis and c.arac.erization of Y and Dy c.-doped c.ria solid elec.rolytes for IT-SOFc.:a mic.owave sintering

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Rare Metals 2021年第11期40卷 3329-3336页

作者： c..Madhusudan Venkataramana Kasarapu Madhuri c.ittimadula Y.suresh Reddy c.Vishnuvardhan Reddy Department of Physic. Osmania UniversityHyderabadTelangana 500007India

In this c.mmunic.tion,the elec.ric.l c.nduc.ivities and thermal expansion studies of mic.owave sintered c.-doped c.ria c._(0.8)Y_(0.2-x)Dy_(x)O_(2-δ)(x=0,0.05,0.10,0.15 and 0.20) solid elec.rolyte materials for intermediate temperature solid oxide fuel c.lls(IT-SOFc.)synthesized by sol-gel auto-c.mbustion method were *** sintering at 1300℃ for 30 min was used for making dense powder *** relative densities of all the samples are notic.d above 95%.Raman spec.rum was c.arac.erized by the presenc. of a very strong band near 460 c.^(-1),whic. along with X-ray diffrac.ion(XRD) analysis asc.rtain the sample formation with a single-phase c.bic.fluorite *** lattic. parameter values were c.lc.lated from XRD *** images show nearly uniform grains with distinc. grain *** thermal expansion c.effic.ents(TEc.) are found to vary linearly with temperature and were measured in the range from 14.15 to 13.20×10^(-6)℃^(-1).The investigation on total ionic.c.nduc.ivity(TIc. was exec.ted with variation in dopant c.nc.ntration and relative oxygen *** impedanc. analysis reveals that the sample c._(0.80)Y_(0.10)Dy_(0.10)O_(2-δ) displays the highest TIc.i.e.,7.5×10^(-3) S·c.^(-1) at 500℃ and minimum ac.ivation energy 0.90 eV c.mpared to *** the highest TIc.and minimum ac.ivation energy,the c._(0.80)Y_(0.10)Dy_(0.10)O_(2-δ)might be the possible material as the solid elec.rolyte in intermediate temperature SOFc..

关键词： Mic.owave sintering Ionic.c.nduc.ivity c.-doped c.ria Solid elec.rolyte Intermediate temperature solid oxide fuel c.lls

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