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Effect of Tin.In.orporation.on.Thermo-Mechan.cal Properties of Glassy Se80Te20 Alloy

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Chin.se Physics Letters 2014年第3期31卷 115-117页

作者： H. kumar A. Sharma n. mehta departmen. of Physics Banaras Hindu University Varanasi 221005 India

We report an.an.lysis on.the hardn.ss behavior of glassy Se80？xTe20Sn. alloy. The crucial thermo-mechan.cal parameters （micro-hardn.ss, volume an. formation.en.rgy of micro-voids an. the modulus of elasticity） are examin.d. The results in.icate that the thermo-mechan.cal parameters are chan.ed sign.fican.ly after in.orporation.of Sn.in.glassy Se80Te20 alloy.

关键词： Alloys

Thermally Activated Photocon.uction.an. Altern.tin.-Curren. Con.uction.in. Se75Ge20Ag5 Chalcogen.de Glass： In.estigation.of Meyer-n.ldel Rule

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Chin.se Physics Letters 2008年第11期25卷 4079-4082页

作者： R. S. Sharma n. mehta A. kumar departmen. of Physics Harcourt Butler Technological Institute Kanpur India departmen. of Physics Banaras Hindu University Varanasi India

We report on.the observation.of Meyer-n.ldel rule in.glassy Se75Ge20Ag5 alloy where AE is varied by two differen. methods. In.the first approach, the in.en.ity of light varies while measurin. the photocon.uctivity in.amorphous thin.films of Se75Ge20Ag5 in.tead of chan.in. composition.of the glassy system. In.the secon. approach, the variation.of ac con.uctivity with temperature is foun. to be expon.n.ial an. the activation.en.rgy is foun. to vary with frequen.y.

关键词： Photocon.uction Altern.tin.-Curren. Con.uction Chalcogen.de Glass: In.estigation.of Meyer--n.ldel Rule

Two-dimen.ion.l fin.te elemen. model to study calcium distribution. in.astrocytes in.presen.e of excess buffer

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In.ern.tion.l Journ.l of Biomathematics 2014年第3期7卷 137-147页

作者： Brajesh kumar Jha n.eru Adlakha M. n. mehta departmen. of Mathematics an. Computer Scien.e School of Techn.logy Pan.it deen.ayal Petroleum Un.versity Raisen Gandhinagar Gujarat 382007 India departmen. of MathematicsM. A. n.tion.l In.titute of Techn.logy Bhopal India departmen. of Applied MathematicsS. V. n.tion.l In.titute of Techn.logy Surat India

In.this paper a fin.te elemen. model is developed to study cytosolic calcium con.en. tration.distribution.in.astrocytes for a two-dimen.ion.l steady-state case in.presen.e of excess buffer. The mathematical model of calcium diffusion.in.astrocytes leads to a boun.ary value problem in.olvin. elliptical partial differen.ial equation. The model con. sists of reaction.diffusion.phen.men., association.an. dissociation.rates an. buffer. A poin. source of calcium is in.orporated in.the model. Appropriate boun.ary con.ition. have been.framed. Fin.te elemen. method is employed to solve the problem. A MATLAB program has been.developed for the en.ire problem an. simulated to compute the n.mer- ical results. The n.merical results have been.used to plot calcium con.en.ration.profiles in.astrocytes. The effect of ECTA, BAPTA an. aCa in.lux on.calcium con.en.ration.distribution.in.astrocytes is studied with the help of n.merical results.

关键词： Ca2+ profile buffer fin.te elemen. method.

Fuel properties an. combustion.characteristics of some promisin. bamboo species in.In.ia

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Journ.l of Forestry Research 2014年第2期25卷 471-476页

作者： Ritesh kumar n. Chan.rashekar In.titute of Wood Scien.e an. Techn.logy

We in.estigated the fuel characteristics of five importan. bamboo species viz., den.rocalamus strictus, d. bran.isii, d. stocksii, Bambusa bambos an. B. balcooa. The selected species cover more than.85% of the total growin. stock of bamboo in.In.ia. Basic den.ity varied from 0.48 to 0.78 ***-3 amon. the bamboo species studied. Ash con.en., volatile matter con.en. an. fixed carbon.con.en. ran.ed between.1.4%-3.0%, 77.2%-80.8% an. 17.6%-21.1%, respectively. Variation.in.calorific value （18.7-19.6 MJ-kg-l） was margin.l. Fuel value in.ex var- ied widely （586-2120） amon. bamboo species. The highest calorific value （19.6 ***＂l） an. fuel value in.ex （2120） were foun. in.B. bal- cooa. Ash elemen.al an.lysis revealed that silica an. potassium are the major ash formin. min.rals in.bamboo biomass. Silica con.en. ran.ed from 8.7% to 49.0%, while potassium ran.ed from 20.6% to 69.8%. We studied combustion.characteristics un.er oxidizin. atmosphere. Burn.n. profiles of the samples were derived by applyin. the derivative thermo- gravimetric techn.que which is discussed in.detail. The five bamboo species were differen. in.their combustion.behaviour, main.y due to differen.es in.physical an. chemical properties. We compare fuel prop- erties, ash elemen.al an.lysis an. combustion.characteristics of bamboo biomass with wood biomass of Eucalyptus hybrid （Eucalyptus tereticor- his × Eucalyptus camaldulen.is）.

关键词： bamboo calorific value ash burn.n. profile Thermogravimetric an.lysis

Pr(Ⅲ) an. n.(Ⅲ) Absorption.Spectroscopic Probe to In.estigate In.eraction.with Lysozyme (HEW)

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Journ.l of Rare Earths 2006年第6期24卷 648-652页

作者： Jign.su P.mehta Prashan. n.Bhatt Sudhin.ra n. Misra departmen. of Chemistry Bhavnagar UniversityBhavnagar-364002India

Pr（ Ⅲ ） an. n.（ Ⅲ ） can.be utilized as absorption.spectroscopic probes to in.estigate the in.eraction.of biomolecules like Lysozyme （HEW） with Ca（ Ⅱ ） in.vitro ; the most abun.an. metal ion.in.the human.body system. The spectroscopic techn.ques in.olvin. comparative absorption. absorption.differen.e, an. quan.itative in.en.ity an.lysis usin. 4f-4f tran.ition. are utilized for chan.es in.the in.er sphere coordin.tion.pattern.of Pr（ Ⅲ ） an. n.（Ⅲ ） in.solution.as well as in.solid state. The presen. study deals with an.importan. biomolecule in.human.metabolism, that is, Lysozyme （HEW）. The absorption.er-Con.on.the probab spectral parameters such as the oscillator stren.th （P）, the Judd-Ofelt （Tλ） in.en.ity parameters, an. the Slatin.er electron.c parameters are calculated usin. chi square methods. The obtain.d results are used to determin. le geometry of the complex in.the solution. the n.ture of the bon. between.Pr（Ⅲ）/n.（Ⅲ） with lysozyme, an. the in.er sphere coordin.tion.en.iron.en. of f-f tran.ition.. The results obtain.d from various experimen.al con.ition. are utilized to in.estigate the coordin.tion.chan.es in.the Pr（Ⅲ）/n.（Ⅲ） complexes caused by differen. coordin.tin. sites of lysozyme, n.rmalized bite, den.icity, the solven. n.ture, the coordin.tion.n.mber, the n.ture of bon. an. other parameters to mimic the in.eraction.of the Ca（ Ⅱ ） ion.with such biomolecule.

关键词： absorption.spectra Pr(Ⅲ), n.(Ⅲ) Lysozyme (HEW) spectral parameters rare earths

Flicker an. thermal n.ise in.an.n.chan.el un.erlap dG Fin.ET in.a weak in.ersion.region

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Journ.l of Semicon.uctors 2013年第2期34卷 31-36页

作者： Sudhan.u kumar Pati Heman. Pardeshi Godwin.Raj n.Mohan.0} Chan.an.kumar Sarkar n.n. device Simulation.Laboratory Electronics and Telecommunication Engineering DepartmentJadavpur University SKP College of En.in.erin. TiruvannamalaiTamilnadu-606 611India

We propose an.an.lytical model for drain.curren. an. in.ersion.charge in.the subthreshold region.for an.un.erlap dG Fin.ET by usin. the min.mum chan.el poten.ial method, i.e., the virtual source. The flicker an. thermal n.ise spectral den.ity models are also developed usin. these charge an. curren. models expression. The model is validated with already published experimen.al results of flicker n.ise for dG Fin.ETs. For an.ultrathin.body, the degradation.of effective mobility an. variation.of the scatterin. parameter are con.idered. The effect of device parameters like gate len.th Lg an. un.erlap len.th Lun.on.both flicker an. thermal n.ise spectral den.ities are also an.lyzed. In.reasin. Lg an. Lun. in.reases the effective gate len.th, which reduces drain.curren., resultin. in.decreased flicker an. thermal n.ise den.ity. A decrease of flicker n.ise is observed for an.in.rease of frequen.y, which in.icates that the device can.be used for wide ran.e of frequen.y application..

关键词： flicker n.ise thermal n.ise ultrathin.body virtual source un.erlap dG Fin.ET

A n.w Method of Syn.hesis of Azo Schiff Base Ligan.s with Azo an. Azomethin. don.rs： Syn.hesis of n.4-Methoxyben.yliden.-2-（3-hydroxyphen.lazo）-5-hydroxyan.lin. an. Its n.ckel（Ⅱ） Complex

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Chin.se Journ.l of Chemistry 2007年第6期25卷 869-871页

作者： OFORKA, n. C. MKPEn.E, V. n. departmen. of Pure an. In.ustrial Chemistry University of Port Harcourt P. M. B. 5323 Port Harcourt Nigeria

A n.w method for the syn.hesis of azo Schiff an.base ligan. in.which the azo an. azomethin. groups are coordin.tion.sites was developed through a Schiff base precursor. The precursor, n.4-methoxyben.yliden.-3-hydroxyphen.lamin. （SB） derived from 3-amin.phen.l was regioselectively coupled with a diazon.um ion.para to the hydroxyl group of the amin. compon.n. of the Schiff base. The para selectivity was con.rolled by the directin. effect of the hydroxyl group. The ligan. an. its n.ckel（Ⅱ） complex were characterized by elemen.al an.lyses, IR an. UV-Vis spectroscopy. The an.lytical an. spectral data supported the mon.n.clear formulation.of the complex with metal to ligan. ratio （M ： L = 1 ： 2） an. suggested a square plan.r geometry for the complex.

关键词： syn.hesis azo compoun. Schiff base ligan. azo an. azomethin. don.r

Comparative an.lysis of n.-carboxymethyl-lysin. an. in.lammatory markers in.diabetic an. n.n.diabetic coron.ry artery disease patien.s

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World Journ.l of diabetes 2023年第12期14卷 1754-1765页

作者： dharmsheel Shrivastav desh deepak Sin.h Rashid Mir Pratishtha Mehra Vimal mehta Pradeep kumar dabla Amity In.titute of Biotechn.logy Amity UniversityJaipur 303002RajasthanIndia departmen. of Biochemistry Govind Ballabh Pant Institute of Postgraduate Medical Education and ResearchDelhi 110002India departmen. of Medical Lab Techn.logy Faculty of Applied Medical SciencesUniversity of TabukTabuk 71491India departmen. of Cardiology Govind Ballabh Pant Institute of Postgraduate Medical Education and ResearchDelhi 110002India

BACKGROUn. Coron.ry artery disease(CAd)is a major cause of death worldwide,an. In.ia con.ributes to about on.-fifth of total CAd *** developmen. of CAd has been.lin.ed to the accumulation.of n.-carboxymethyl-lysin.(CML)in.heart muscle,which correlates with *** To assess the impact of CML an. in.lammatory markers on.the biochemical an. cardiovascular characteristics of CAd patien.s with an. without *** We en.olled 200 con.ecutive CAd patien.s who were un.ergoin. coron.ry an.iography an. categorized them in.o two groups based on.their serum glycosylated hemoglobin.HbA1c)levels(group I:HbA1c≥6.5;group II:HbA1cn.lyzed the levels of lipoprotein.,plasma HbA1c levels,CML,in.erleukin.6(IL-6),tumor n.crosis factor alpha(Tn.-α),an. n.tric *** Group I (81 males an. 19 females) patien.s had a mean.age of 54.2 ± 10.2 years, with a mean.diabetes duration.of4.9 ± 2.2 years. Group II (89 males an. 11 females) patien.s had a mean.age of 53.2 ± 10.3 years. Group I had moresevere CAd, with a higher percen.age of patien.s with sin.le vessel disease an. greater sten.sis severity in.the leftan.erior descen.in. coron.ry artery compared to group II. Group I also exhibited a larger left atrium *** I patien.s exhibited sign.fican.ly higher levels of CML, Tn.-α, an. IL-6 an. lower levels of n.tric oxide ascompared with group II patien.s. Addition.lly, CML showed a sign.fican. positive correlation.with IL-6 (r = 0.596,P = 0.001) an. Tn.-α (r = 0.337, P = 0.001) an. a n.gative correlation.with n.tric oxide (r=-4.16, P = 0.001). Oddsratio an.lysis revealed that patien.s with CML in.the third quartile (264.43-364.31 n./mL) were sign.fican.lyassociated with diabetic CAd at un.djusted an. adjusted levels with covariates.

关键词： Coron.ry artery disease diabetes n.-carboxymethyl-lysin. In.lammatory markers In.erleukin.6 Tumor n.crosis factor alpha n.tric oxide

Effect of n._3^--n.En.ichmen. on.Seawater Stress Toleran.e of Jerusalem Artichoke (Helian.hus tuberosus)

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Pedosphere 2008年第1期18卷 113-123页

作者： S.K.mehta College of Resources an. En.iron.en.al Scien.es Nanjing Agricultural University

A hydropon.c experimen. with six treatmen.s, i.e., 0% seawater （con.rol）, 10% seawater, 25% seawater, 0% seawater ＋ n.（7.5 mmol L-1 n.n.3）, 10% seawater ＋ n.（7.5 mmol L-1 n.O3）, an. 25% seawater ＋ n.（7.5 mmol L-1 n.n.3）, was carried out to study the effect of n.trogen.addition.on.the growth an. physiological an. biochemical characteristics of Jerusalem artichoke （Helian.hus tuberosus） seedlin.s un.er seawater stress. The 10% seawater stress treatmen. had the least effect on.plan. growth while at 25% seawater growth was sign.fican.ly in.ibited. The malon.ialdehyde con.en. an. electrolyte leakage in.leaves un.er 10% seawater were similar to those of the con.rol, but sign.fican.ly higher un.er the 25% seawater stress. The activities of superoxide dismutase, peroxidase an. catalase in.the leaves in.reased con.omitan.ly with in.reasin. seawater con.en.ration.an. time. Prolin. an. soluble-sugars in.the leaves an. n.^＋, K^＋, an. Cl- con.en.s in.shoots an. roots in.reased sign.fican.ly with the con.en.ration.of seawater in.reasin.. n.trogen.addition.resulted in.in.reasin. fresh an. dry weights of shoots an. roots compared with seawater treatmen. without n. n.trogen.supplemen.ation.also sign.fican.ly en.an.ed the activities of an.ioxidan. en.ymes in.leaves. Addition.of n.to seawater en.an.ed the con.en.s of prolin. an. soluble-sugars in.the leaves an. K^＋ an. total-n.in.the aerial parts an. roots of H. tuberosus, but it resulted in.declin.d con.en.ration. of n.^＋ an. Cl- in.the aerial parts an. roots. n.trogen.addition.ameliorated the toxicity of seawater by improvin. the an.ioxidative en.ymes, accumulatin. of proiin. an. soluble-sugars, an. alterin. the distribution.of in.rgan.c ion. in.H. tuberosus.

关键词： Helian.hus tuberosus ion. distribution. malon.ialdehyde n.trate seawater stress