检索结果-南通市图书馆

a.pl.ca.ion of a.ga. pl.0}t extra.t a. green corrosion inhibitor for steel.in 1 mol.l.HCl

在线全文

学校读者我要写书评

暂无评论

a.ta.Meta.l.rgica.Sinica.Engl.sh l.tters) 2012年第1期25卷 10-18页

作者： l. a.ia.R. Sa.ghi l. Ba.mou l.. Ba.zi B. Ha.mouti l. Ba.zi l.0}ora.ory of Environmenta. Engineering a.d Biotechnol.gy ENSA University Ibn Zohr PO Box 1136 80000 Agadir Morocco l.0}ora.ory of Esta.l.shment of a.tonomous Control.a.d Coordina.ion of Export 80000 Agadir Morocco l.a.-URa. 18 Faculty of Science University of Mohammed Premier PO Box 717 60000 Oujda Morocco l.0}ora.ory of Ma.eria.s & Environment Faculty of Science University Ibn Zohr BP 8106 80000 Agadir Morocco

The effect of a.ga. pl.0}t extra.t （a.E） on the corrosion of the steel.in hydrochl.ric a.id medium wa. studied using gra.imetric, el.ctrochemica. pol.0}iza.ion a.d impeda.ce spectroscopy （EIS） mea.urements. Inhibition efficiency increa.es with a.E concentra.ion to a.ta.n 95% a. 2.5 g/l. We note good a.reement between gra.imetric a.d el.ctrochemica. methods （potentiodyna.ic pol.0}iza.ion a.d EIS）. Effect of tempera.ure is a.so ma.e in the 298-328 K ra.ge. Pol.0}iza.ion mea.urements show a.so tha. a.E a.t a. a.mixed inhibitor. The thermodyna.ic da.a.of a.tiva.ion a.d a.sorption a.e determined a.d discussed.

关键词： Corrosion Steel Inhibition a.ga. pl.0}t extra.t a.sorption Kinetic pa.a.eter

Recent cha.ges in underground tra.ersing techniques in Western a.stra.ia

在线全文

学校读者我要写书评

暂无评论

中国有色金属学会会刊：英文版 2005年第S1期15卷 284-288页

作者： a. Ja.osz l. Shepherd Western a.stra.ia. School.of Mines Mine Surveying Program Curtin University of Technology Kalgoorlie WA 6433 AustraliaWestern Australian School of Mines Mine Surveying Program Curtin University of Technology Kalgoorlie WA 6433 Australia

The survey configura.ion, instrumenta.ion a.d error propa.a.ion in the control.survey technique known a. “wa.l.sta.ion tra.ersing” were a.a.yzed. Wa.l.mounted survey points wa. util.zed a. a. a.terna.ive to roof (ba.ks) mounted points. Recentl., this technique ha. ga.ned widesprea. a.cepta.ce in underground meta.l.ferous mines in Western a.stra.ia. The error propa.a.ion of the “wa.l.sta.ions” technique in rel.0}ion to cl.0}sica. tra.ersing wa. a.a.yzed a.d compa.ed, a.d a. optima. survey procedure a.d configura.ion for this technique wa. derived.

关键词： mine surveying survey control tra.ersing

Use of High-Yiel.ing Bioenergy Pl.0}t Ca.tor Bea.(Ricinus communis l.) a. a.Potentia. Phytoremedia.or for Copper-Conta.ina.ed Soil.

在线全文

学校读者我要写书评

暂无评论

Pedosphere 2013年第5期23卷 651-661页

作者： R. a.DREa.Za.l. BORTOl.N S. PIENIZ F. a. O. Ca.a.GO Depa.tment of Soil Federal University of Rio Grande do Sul Laboratory of Soil Microbiology Center of Engineer Federal University of Pelotas EMBRa.a.- Bra.il.a. a.ricul.ura. Resea.ch Corpora.ion National Research Center of Fisheries Aquaculture and Agricultural Systems Depa.tment of Technol.gy a.d Food Microbiol.gy Federal University of Rio Grande do Sul

Copper （Cu） conta.ina.ion in the environment ha. been increa.ed during the yea.s with a.ricul.ura. a.d industria. a.tivities. Biotechnol.gica. a.proa.hes a.e needed for bioremedia.ion in these a.ea.. The a.ms of this study were i） to eva.ua.e the phytoreme- dia.ion ca.a.ity of the high-yiel.ing bioenergy pl.0}t ca.tor bea. （Ricinus communis l.） in vineya.d soil. （Inceptisol.a.d Mol.isol. conta.ina.ed with Cu a.d a.Cu mining wa.te; ii） to cha.a.terize the ca.tor bea. a. a.Cu phytoremedia.ion pl.0}t; a.d iii） to eva.ua.e the nutrient upta.e by ca.tor bea.. Ca.tor bea. pl.0}ts cul.iva.ed in soil.with toxic l.vel. of Cu for 57 d exhibited high phytoma.s production, a.high tol.ra.ce index of roots＇ fresh ma.s a.d shoots＇ dry ma.s, a.high l.vel.of Cu phytoa.cumul.0}ion in the roots a.d a.so, a.robust ca.a.ity for Cu phytosta.il.za.ion. Furthermore, ca.tor bea. pl.0}ts did not significa.tl. depl.te soil.nutrients （such a. N, P, a.d Mg） during cul.iva.ion. Pl.0}ts cul.iva.ed in Inceptisol. Mol.isol.a.d Cu mining wa.te exhibited a.strong potentia. for Cu phytoa.cumul.0}ion, with va.ues of 5900, 3 052 a.d 2805 g ha.1, respectivel.. In a.dition, the ca.tor bea.＇s el.va.ed phytoma.s production a.d strong growth in Cu-conta.ina.ed soil. indica.ed a.high l.vel.of Cu phytoa.cumul.0}ion a.d a.potentia. a.pl.ca.ion in biofuel.. These findings indica.e tha. the ca.tor bea. is a.efficient hypera.cumul.0}or of Cu a.d a.potentia. ca.dida.e pl.0}t for the phytoremedia.ion of Cu-conta.ina.ed soil.

关键词： biofuel. phytoa.cumul.0}ion phytoremedia.ion phytosta.il.za.ion

a.ti-commuta.ive Grbner-Shirshov ba.is of a.free l.e a.gebra

在线全文

学校读者我要写书评

暂无评论

Science China.Ma.hema.ics 2009年第2期52卷 244-253页

作者： BOKUT l. a. School.of Ma.hema.ica. Sciences South China Normal University Sobol.v Institute of Ma.hema.ics Russian Academy of Sciences Siberian BranchNovosibirsk 630090 Russia

The concept of Ha.l.words wa. first introduced by P. Ha.l.in 1933 in his investiga.ion on groups of prime power order. Then M. Ha.l.in 1950 showed tha. the Ha.l.words form a.ba.is of a.free l.e a.gebra.by using direct construction, tha. is, first he sta.ted with a.l.nea. spa.e spa.ned by Ha.l.words, then defined the l.e product of Ha.l.words a.d fina.l. checked tha. the product yiel.s the l.e identities. In this pa.er, we give a.Grbner-Shirshov ba.is for a.free l.e a.gebra. a. a. a.pl.ca.ion, by using the Composition-Dia.ond l.mma.esta.l.shed by Shirshov in 1962 for free a.ti-commuta.ive (non-a.socia.ive) a.gebra., we provide a.other method different from tha. of M. Ha.l.to construct a.ba.is of a.free l.e a.gebra.

关键词： l.e a.gebra a.ti-commuta.ive a.gebra Ha.l words Grbner-Shirshov ba.is

Copper smel.er sl.0} trea.ment by a.monia.sol.tion:l.a.hing process optimiza.ion

在线全文

学校读者我要写书评

暂无评论

Journa. of Centra. South University 2017年第12期24卷 2799-2804页

作者： R. Na.irov l. Syzdykova.a. Zhussupova Depa.tment of Genera. a.d Inorga.ic Chemistry al-Farabi Kazakh National University Almaty 050040 Kazakhstan Depa.tment of Physica. Chemistry Catalysis and Petrochemistry al-Farabi Kazakh National UniversityAlmaty 050040 Kazakhstan

The fea.ibil.ty of copper smel.er sl.0} processing by a.monia.sol.tion trea.ment wa. investiga.ed. The centra. composite rota.a.l. design(CCRD) a.d a.proxima.ion method were used to determine the optimum conditions of zinc a.d copper recovery to a.sol.tion. The experimenta. design wa. done a. five l.vel. of the four opera.ing pa.a.eters which were the initia. concentra.ion of NH–3, the initia. Cl.ions concentra.ion, l.a.hing time a.d sol.d/l.quid ra.io. Two ma.hema.ica. model. describing dependence of meta. recovery on the opera.ing pa.a.eters were obta.ned. The model. a.e successful.in predicting the responses. It wa. found tha. optima. pa.a.eters for zinc a.d copper recovery a.e a. fol.ows(va.ues for copper a.e given in bra.kets): initia. CNH3 17.1%(19.9%), initia. CCl. 160 g/l.160 g/l., l.a.hing process dura.ion 4.56 h(4.13 h), sol.d/l.quid ra.io 0.39(0.53). The ma.imum Zn a.d Cu recoveries to sol.tion, obta.ned experimenta.l. under the conditions, a.e 81.16% a.d 56.48%, respectivel..

关键词： copper sl.0} a.monia sol.tion meta. recovery centra. composite design optimiza.ion

Does host pl.0}t qua.ity a.fect the oviposition decisions of a. omnivore？

在线全文

学校读者我要写书评

暂无评论

Insect Science 2017年第3期24卷 491-502页

作者： Megha. a. Va.kosky Shera. l. Va.l.0}rhoven Depa.tment of Biol.gica. Sciences University of Windsor 401 Sunset Avenue Windsor Ontario NgB 3P4 Canada

Optima. oviposition theory predicts a.positive rel.0}ionship between fema.e pref- erence for oviposition hosts a.d offspring performa.ce. Interspecies effects on oviposition preference ha.e been widel. investiga.ed, especia.l. for herbivores. However, intra.pecies va.ia.ion, such a. nitrogen content, might a.so infl.ence fema.e preference for oviposition hosts a.d subsequent offspring performa.ce. To eva.ua.e this possibil.ty, we investiga.ed the oviposition preference of a.zoophytopha.ous omnivore a.d the devel.pment a.d sur- viva. of its nymphs on a.singl. species of host pl.0}t tha. va.ied in nitrogen content. In choice a.d no-choice experiments without prey, fema.e omnivores were a.l.wed to oviposit on pl.0}ts tha. ha. been fertil.zed using 4 ra.es of nitrogen fertil.zer （39, 78, 156, a.d 311 mg/l.nitrogen） for 72 h. a.ter 72 h, the most fema.es were found on toma.o pl.0}ts receiving high concentra.ions of nitrogen fertil.zer a.d more eggs were l.0}d on those pl.0}ts. First insta. nymphs devel.ped more ra.idl. on high-nitrogen pl.0}ts a.d third insta. nymphs devel.ped fa.ter on l.w-nitrogen pl.0}ts. Pl.0}t nitrogen did not a.fect nymph surviva. to the a.ul. sta.e, or the proba.il.ty of surviva. over time. a.though fema.e omnivores did discrimina.e between potentia. oviposition hosts ba.ed on pl.0}t nitrogen, their choices did not significa.tl. impa.t nymph devel.pment or surviva.. This is the first study to show tha. intra.pecies va.ia.ion in nitrogen content between pl.0}ts a.fects the oviposition preference of fema.e omnivores, but not offspring performa.ce.

关键词： biol.gica. control Dicyphus hesperus Hemiptera nitrogen omnivore optima. oviposition

Non-surgica. thera.y of Peyronie＇s disea.e

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

a.ia. Journa. of a.drol.gy 2008年第1期10卷 79-87页

作者： Frederick l. Ta.l.r l.0}rence a. l.vine Depa.tment of Urol.gy Rush University Medical Center Chicago 60612 USA

The present pa.er provides a.review of the a.a.l.0}l. non-surgica. trea.ments for Peyronie＇s disea.e （PD）. a.review of publ.shed l.tera.ure on ora., intra.esiona., externa. energy a.d iontophoresis thera.ies for PD wa. performed, a.d the publ.shed resul.s of a.a.l.0}l. trea.ment options reviewed. The a.thors＇ recommenda.ions for a.propria.e non-surgica. ma.a.ement of PD a.e provided. a.though there a.e ma.y publ.shed reports tha. show the effica.y of non-surgica. thera.ies for PD, there is a.l.0}k of l.0}ge sca.e, mul.icenter control.ed cl.nica. tria.s, which ma.es trea.ment recommenda.ions difficul.. Ca.eful.review of the l.tera.ure does suggest tha. there a.e trea.ment options tha. ma.e scientific sense a.d a.pea. to sta.il.ze the disea.e process, reduce deformity, a.d improve function. Offering no trea.ment a. a.l.wil. encoura.e our pa.ients to pursue a.terna.ive trea.ments, which might do ha.m, a.d misses the opportunity to do some good. Cl.a.l. further work is necessa.y to devel.p sa.e a.d effective non-surgica. trea.ments for PD.

关键词： Peyronie's disea.e penil. indura.ion huma.s injections intra.esiona. vita.in E pentoxifyl.ine a.ino a.ids

Biochemica. regul.0}ion of pigment motil.ty in vertebra.e chroma.ophores： a.review of physiol.gica. col.r cha.ge mecha.isms

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Current Zool.gy 2016年第3期62卷 237-252页

作者： Russel. a. l.GON Kristen l. MCCa.TNEY School.of l.fe Sciences Life Sciences C-wing Rm. 522 Arizona State University Tempe AZ 85287-4501 USA

The funda.enta. unit of ra.id, physiol.gica. col.r cha.ge in vertebra.es is the derma. chroma.o- phore unit. This unit, comprised of cel.ul.0} a.socia.ions between different chroma.ophore types, is rel.0}ivel. conserved a.ross the fish, a.phibia., a.d reptil.a. species ca.a.l. of physiol.gica. col.r cha.ge a.d numerous a.tempts ha.e been ma.e to understa.d the na.ure of the four ma.or chro- ma.ophore types （mel.0}ophores, erythrophores, xa.thophores, a.d iridophores） a.d their bio- chemica. regul.0}ion. In this review, we a.tempt to describe the current sta.e of knowl.dge rega.d- ing wha. cl.0}sifies a.pigment cel. a. a.dyna.ic chroma.ophore, the unique cha.a.teristics of ea.h chroma.ophore type, a.d how different hormones, neurotra.smitters, or other signa.s direct pig- ment reorga.iza.ion in a.va.iety of vertebra.e ta.a.

关键词： chroma.ophore hormone neurotra.smitter physiol.gica. col.r cha.ge pigment vertebra.e.

Fiel. sca.e mea.urement of greenhouse ga. emissions from l.0}d a.pl.ed swine ma.ure

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 of Environmenta. Science & Engineering 2017年第3期11卷 19-33页

作者： Devin l. Ma.rer Ja.ek a. Koziel.Kel.ey Bruning Depa.tment of a.ricul.ura. a.d Biosystems Engineering Iowa State University Ames IA 50011 USA

Greenhouse ga. emissions （GHGs） from swine production systems a.e rel.0}ivel. wel. resea.ched with the exception of emissions from l.0}d a.pl.ca.ion of ma.ure. GttGs inventories a.e needed for process- ba.ed model.ng a.d science-ba.ed regul.0}ions. Thus, the objective of this observa.iona. study wa. to mea.ure GHG fl.xes from l.0}d a.pl.ca.ion of swine ma.ure on a.typica. corn fiel.. a.sessment of GHG emissions from deep injected l.0}d-a.pl.ed swine ma.ure, Phil.a.d rea.pl.ca.ion in the spring, on a.typica. US Midwestern corn-on-corn fa.m wa. compl.ted. Sta.ic cha.bers were used Ibr fl.x mea.urement a.ong with ga. a.a.ysis on a.GC-FID-ECD＋ Mea.ured ga. concentra.ions were used to estima.e GHGs fl.x using four different model.： l.nea. regression, nonl.nea. regression, first order l.nea. regression a.d the revised Hutchinson a.d Mosier （HMR） model. respectivel. for *** fl.x esmna.es a.ter ma.ure a.phca.mn of 5.85×10 g·ha.-1（1 ha.= 0.01 km） of CO2 6.60×10^1g·ha.-1 of CH4 a.d3.48 ×10^3g·ha.-1 N2O for the fa.l.tria. a.d 3.11×10^6g·ha.-1 of CO2,2.95×10^3g·ha.-1 of OH4, a.d 1.47×10^4g·ha.-1 N2O a.ter the spnng rea.phca.ion tria. were observed. The N2O net cumul.0}ive fl.x represents 0.595% of nitrogen a.pl.ed in swine ma.ure for the fa.l.tria..

关键词： Cl.ma.e cha.ge Emissions Greenhouse ga.es l.0}d a.pl.ca.ion Swine ma.ure