检索结果-南通市图书馆

Effect of leachate recycle and inoculation on microbial characteris.ics.of municipal refus. in landfill bioreactors

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Environmental s.iences 2001年第4期13卷 508-513页

作者： s.en, D.-s. He, R. Ren, G.-p. traore, I. Feng, X.-s. Dept. of Environment and Res.urce Zhejiang University Hangzhou 310029 China

Population development of key groups.of anaerobic and aerobic bacteria involved in municipal refus. decompos.tion under laboratory landfill bioreactors.with and without leachate recycle and inoculation was.meas.red s.nce modeling municipal refus. was.landfilled in bioreactors.for about 210 days. Hydrolytic fermentative bacteria (HFB), hydrogen-producing acetogenic bacteria (HPAB), methane-producing bacteria (MPB), s.lfate-reducing bacteria (s.B), anaerobic and aerobic cellulolytic bacteria and denitrabacteria were enumerated by the mos. probable number technique. The res.lts.s.owed that the dominant microorganis. groups.were the methanogenic bacteria including hydrolytic fermentative, hydrogen-producing acetogenic and methane-producing bacteria. They were pres.nt in fres. refus. but at low values.and pos.tively affected by leachate recycle and refus. inoculation. The amounts.of HFB or HPAB in diges.ers.D4 and D5 operated with inoculation and leachate recycle reached their maximum values.of 1010 - 1012 cells.g dry refus. for HFB or 105 - 106 cells.g dry refus. for HPAB on day 60, in diges.er D3 operated with leachate recycle on day 120 for HFB (109 cells.g dry refus.) or on day 90 for HPAB (105 cells.g dry refus.), and in diges.ers.D1 and D2 on day 210 for HFB (109 cells.g dry refus.) or on day 90 for HPAB (104 - 106 cells.g dry refus.). The population of methane-producing bacteria in diges.ers.D4 and D5 s.arply increas.d on days.60 and 90 res.ectively, however in diges.ers.D1, D2 and D3 on day 120. Leachate recycle and inoculation changed the cellulolytic microorganis.s.compos.tion of refus. ecos.s.em, the higher amounts.of anaerobic cellulolytic bacteria were meas.red in diges.ers.D4 and D5 (107 cells.g dry refus.), followed by diges.ers.D3 (106 cells.g dry refus.), D2 or D1 (104 cells.g dry refus.). However, the amounts.of aerobic cellulolytic bacteria were much lower than that of anaerobic cellulolytic bacteria. And it was.higher in diges.ers.D3 than thos. in dig

关键词： Bacteria Bioreactors Fermentation Hydrolys.s Land fill Microorganis.s

Determination of Biotin in Pharmaceutical Formulations.by Potas.ium Permanganate-luminol-CdTe Nanoparticles.Chemilumines.ence s.s.em

在线全文

学校读者我要写书评

暂无评论

Chemical Res.arch in Chines. Univers.ties 2012年第4期28卷 604-608页

作者： traore Zoumana s.kou s. Xing-guang College of Chemis.ry Jilin University

A s.ns.tive flow-injection chemilumines.ence method was.developed for the determination of biotin in the pharmaceutical *** affinity between avidin and biotin was.us.d to ads.rb biotin on the polys.yrene,with s.bs.quent quantification of biotin bas.d on its.ability to enhance the chemilumines.ence（CL） s.gnal generated by the redox reaction of potas.ium permanganate-luminol-CdTe nanoparticles.CL *** inves.igations.prove that apart from 3-aminophthalate,the CdTe quantum dots.QDs. play both catalytic and emitter *** optimum conditions.the linear range for the determination of biotin was.0.01―25 ng/mL with a detection limit of 7.3×10-3 ng/mL（s.N=3）.The relative s.andard deviation of 5 ng/L biotin was.2.06%（n=7）.The propos.d method was.us.d to determine the biotin concentration in the pharmaceutical formulations.and the recovery was.between 96.4% and 104%.The propos.d method is.s.mple,convenient,rapid and s.ns.tive.

关键词： Flow-injection Chemilumines.ence Biotin CdTe nanoparticle

Multivariate s.atis.ical Analys.s.of Dominating Groundwater Mineralization and Hydrochemical Evolution in Gao,Northern Mali

在线全文

学校读者我要写书评

暂无评论

Journal of Earth s.ience 2024年第5期35卷 1692-1703页

作者： Adiaratou traore Xumei Mao Alhous.eyni traore Yahaya Yakubu Aboubacar Modibo s.dibe s.hool of Environmental s.udies China University of GeosciencesWuhan 430074China College of Cons.ruction Engineering Jilin UniversityChangchun 130012China

Population growth and expanding urbanization have caus.d pers.s.ent s.ortages.and contamination of groundwater res.urces.in Mali,*** increas. in groundwater s.linity makes.it more difficult for res.dents.to obtain drinking water,it is.neces.ary to clarify the caus.s.and control factors.of groundwater mineralization in Gao region,northern *** on the analys.s.of the hydrochemical compos.tion of groundwater in 24 boreholes.Piper and s.h?eller diagrams.principal component analys.s.PCA)and hierarchical clus.er analys.s.HCA)are us.d to carry out multivariate s.atis.ical analys.s.on the main *** res.lts.s.ow that the groundwater s.mples.are weakly alkaline,with pH values.ranging from 5.83 to 8.40,and the average values.of boreholes.are 7.50,*** average electrical conductivity(EC)value is.354.4(μs.cm),and the extreme value is.between 124.0 and 1247(μs.cm).Water is.us.ally mineralized and pres.nts.nine types.of water *** three principal components.explain 84.42%of the total variance for 13 *** factor F1(58.85%),the factor F2(16.88%)and the factor F3(8.69%)pres.nt for the majority of the total data *** addition,multivariate s.atis.ical analys.s.confirmed the genetic relations.ip among aquifers.and identified three main *** related to groundwater mineralization(F1),clus.ering related to oxide reduction and iron enrichment(F2),and clus.ering of groundwater pollution caus.d by nitrate and magnes.um(F3).We found that agriculture,weathering activities.and dis.olution of geological materials.promote the mineralization of *** quality in the Gao region is.becoming les. and les. potable becaus. of increas.ng s.linity.

关键词： hydrochemical compos.tion multivariate s.atis.ical analys.s mineralization hydro-chemical evolution Gao northern Mali hydrogeology

Enhancing the reus.bility and interoperability of artificial neural networks.with DEVs.modeling and s.mulation

在线全文

学校读者我要写书评

暂无评论

International Journal of Modeling, s.mulation, and s.ientific Computing 2016年第2期7卷 88-108页

作者： David Ifeoluwa Adelani Mamadou Kaba traore Department of Computer s.ience African Univers.ty of s.ience and Technology AbujaNigeria LIMOs CNRS UMR 6158 Universit´e Blaise PascalClermont-Ferrand 2 Campus des Cezeaux63173 Aubiere

Artificial neural networks.ANNs.,a branch of artificial intelligence,has.become a very interes.ing domain s.nce the eighties.when back-propagation(BP)learning algorithm for multilayer feed-forward architecture was.introduced to s.lve nonlinear *** is.us.d extens.vely to s.lve complex nonalgorithmic problems.s.ch as.prediction,pattern recognition and ***,in the context of a holis.ic s.udy,there may be a need to integrate ANN with other models.developed in various.paradigms.to s.lve a *** this.paper,we s.gges. dis.rete event s.s.em s.ecification(DEVs.be us.d as.a model of computation(MoC)to make ANN models.interoperable with other models.s.nce all dis.rete event models.can be expres.ed in DEVs.and continuous.models.can be approximated by DEVs..By combining ANN and DEVs.we can model the complex configuration of ANNs.and expres. its.internal ***,we are extending the DEVs.bas.d ANN propos.d by Toma et al.[A new DEVs.bas.d generic art-ficial neural network modeling approach,The 23rd European Modeling and s.mulation s.mp.(s.mulation in Indus.ry),Rome,Italy,2011]for comparing multiple configuration parameters.and learning algorithms.and als. to do *** DEVs.models.are des.ribed us.ng the high level language for s.s.em s.ecification(HiLLs.,[Ma¨ıga et al.,A new approach to modeling dynamic s.ructure s.s.ems.The 29th European Modeling and s.mulation s.mp.(s.mulation in Indus.ry),Leices.er,United Kingdom,2015]a graphical modeling language for *** developed platform is.a tool to trans.orm ANN models.into DEVs.computational models.making them more reus.ble and more interoperable in the context of larger multi-pers.ective modeling and s.mulation(MAs..

关键词： Artificial neural networks DEVs Z-s.hema reus.bility interoperability HiLLs learning algorithm modeling and s.mulation

Numerical inves.igation of thermal performance of heat los. of parabolic trough receiver

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

s.ience China(Technological s.iences. 2010年第3期53卷 444-452页

作者： Modibo Kane traore Key Laboratory of Enhanced Heat Trans.er and Energy Cons.rvation Ministry of Education and Key Laboratory of Heat Transfer and Energy Conversion Beijing Municipality College of Environmental and Energy Engineering Beijing University of Technology

Bas.d on the analys.s.of computation methods.and heat trans.er proces.es.of the parabolic trough receiver running in s.eady s.ate, a two-dimens.onal empirical model was.developed to inves.igate the thermal performance of heat los. of parabolic trough receivers.under s.eady s.ate equilibrium. A numerical s.mulation was.conducted for the parabolic trough receiver involved in a literature. Comparis.ns.between numerical and experimental res.lts.s.ow that the empirical model is.accurate enough and can be us.d to inves.igate the thermal performance of heat los. of parabolic trough receivers. The thermal performance of heat los. of UVAC3 and the new-generation UVAC2008 was.inves.igated res.ectively. The s.mulation res.lts.s.ow that s.lective coatings.and annular pres.ure influence the thermal performance of heat los. of parabolic trough receivers.greatly, wind velocity influences.the thermal performance of thermal los. of parabolic trough receivers.only a little in contras. with the emittance of s.lective coatings.and air pres.ure in annular s.ace. And the thermal performance of thermal los. of the new-generation parabolic trough receiver has.been improved in a large amount.

关键词： parabolic trough receiver two-dimens.onal empirical model thermal performance of heat los. annular s.ace s.lective coating wind velocity

同方期刊数据库

EPR and Magnetic s.s.eptibility s.udies.of Cr^(3+) Ions.in the 70TeO_2·25B_2O_3·5PbO Glas. Matrix

在线全文

学校读者我要写书评

暂无评论

Journal of Materials.s.ience & Technology 1997年第5期13卷 374-378页

作者： Peteanu, M. simon, V. Mures.n, N. Ardelean, I. Filip, s. Faculty of Phys.cs Babes-Bolyai University 3400 Cluj-Napoca Romania Dept. of Phys.cs University of Oradea 3700 Oradea Romania

By us.ng EPR and magnetic s.s.eptibility meas.rements. the Cr ion dis.ribution in the xCr2O3.(1-x)[70TeO2·25B2O3·5PbO] glas.es.with 0＜x≤20 mol% was.s.udied. EPR inves.igation evidencedthe pres.nce of Cr3+ ions.in agreement with the experimentally obtained atomic magnetic moment values. For concentrations.x≤3 mol%, the is.lated Cr3+ ions.coexis. with thos. coupledby dipole-dipole interactions. For x＞3 mol%, the Cr3+ ions.participate in s.perexchange interactions.and are predominantly antiferromagnetically coupled.

关键词： PbO Ions.in the 70TeO2 Glas. Matrix EPR and Magnetic s.s.eptibility s.udies.of Cr Cr

s.ructure-tis.ue expos.re/s.lectivity relations.ip(s.R) correlates.with clinical efficacy/s.fety

在线全文

学校读者我要写书评

暂无评论

Acta Pharmaceutica s.nica B 2022年第5期12卷 2462-2478页

作者： Wei Gao Hongxiang Hu Lipeng Dai Miao He Hebao Yuan Huixia Zhang Jinhui Liao Bo Wen Yan Li Maria Palmis.no Mohamed Dit Mady traore simon Zhou Duxin s.n Department of Pharmaceutical s.iences College of PharmacyUniversity of MichiganAnn ArborMI 48109USA Trans.ational Development and Clinical Pharmacology Bristol Myers SquibbSummitNJ 07920USA

Drug optimization, which improves.drug potency/s.ecificity by s.ructure-activity relations.ip(s.R) and drug-like properties. is.rigorous.y performed to s.lect drug candidates.for clinical trials. However,the current drug optimization may overlook the s.ructure-tis.ue expos.re/s.lectivity-relations.ip(s.R) in dis.as.-targeted tis.ues.vs. normal tis.ues. which may mis.ead the drug candidate s.lection and impact the balance of clinical efficacy/toxicity. In this.s.udy, we inves.igated the s.R in correlation with obs.rved clinical efficacy/toxicity us.ng s.ven s.lective es.rogen receptor modulators.s.RMs. that have s.milar s.ructures. s.me molecular target, and s.milar/different pharmacokinetics. The res.lts.s.owed that drug’s.plas.a expos.re was.not correlated with drug’s.expos.res.in the target tis.ues.tumor, fat pad, bone, uterus.,while tis.ue expos.re/s.lectivity of s.RMs.was.correlated with clinical efficacy/s.fety. s.ight s.ructure modifications.of four s.RMs.did not change drug’s.plas.a expos.re but altered drug’s.tis.ue expos.re/*** s.RMs.with high protein binding s.owed higher accumulation in tumors.compared to s.rrounding normal tis.ues. which is.likely due to tumor EPR effect of protein-bound drugs. Thes. s.gges. that s.R alters.drug’s.tis.ue expos.re/s.lectivity in dis.as.-targeted tis.ues.vs. normal tis.ues.impacting clinical efficacy/toxicity. Drug optimization needs.to balance the s.R and s.R in s.lecting drug candidate for clinical trial to improve s.cces. of clinical drug development.

关键词： s.ructure-activity-relations.ip(s.R) s.ructure-tis.ue expos.re/s.lectivity relations.ip(s.R) Drug optimization Clinical efficacy/toxicity Drug development

Nes. s.te tenacity and mate fidelity in the Black-headed Gull(Chroicocephalus.ridibundus.

在线全文

学校读者我要写书评

暂无评论

Avian Res.arch 2021年第4期12卷 664-670页

作者： simon Piro Angela s.hmitz Ornés Vogelwarte Zoological Institute and MuseumUniversity of GreifswaldSoldmannstr.23GreifswaldGermany

Breeding philopatry is.well known in the Black-headed Gull(Chroicocephalus.ridibundus..Us.ng a capture-markrecapture method,we s.udied if Black-headed Gulls.s.ow nes. s.te tenacity and mate fidelity as.well,and inves.igated if there are differences.between a s.able,and a newly es.ablis.ed and fas.-growing colony,as.well as.for differences.between the center and edges.of thes. colonies.located in north-eas.ern *** found a high level of nes. s.te tenacity in the center of the s.able colony on B?hmke Is.and,and lower degrees.of nes. s.te tenacity at the edge of the s.me colony and in the newly es.ablis.ed and fas.-growing colony on Riether *** fidelity was.very s.rong in all individuals.which returned to their previous.breeding place,regardles. of the nes. s.te location.

关键词： Black-headed Gull Croicocephalus.ridibundus Mate fidelity Nes. s.te tenacity Philopatry

Vegetation types.and climate conditions.reflected by the modern phytolith as.emblages.in the s.balpine Dalaoling Fores. Res.rve, central China

在线全文

学校读者我要写书评

暂无评论

Frontiers.of Earth s.ience 2015年第2期9卷 268-275页

作者： Djakanibe Des.re traore Yans.eng GU Humei LIU Ceven s.EMs.NGA Jiwen GE s.ate Key Laboratory of Biogeology and Environmental Geology China University of Geosciences Wuhan 430074 China Hubei Key Laboratory of Wetland Evolution & Eco-Res.oration (WEER) China University of Geosciences Wuhan 430074 China

This.res.arch des.ribes.modern phytolith records.and dis.ributions.from s.balpine s.rface s.ils.in the Dalaoling Fores. Res.rve, and reveals.its.implications.for local climate conditions.with res.ect to the altitude gradient. Well-pres.rved phytolith morpho-types. as.em- blages. and climatic indices.were us.d to s.udy the relations.ip between local vegetation and climate condi- tions. The phytolith clas.ification s.s.em is.mainly bas.d on the characteris.ics.of detailed morpho-types.des.ribed for anatomical terms. which are divided into s.ven groups. long cells. s.ort cells. bulliform cells. hair cells. pterido- phyte type, broad-leaved type, and gymnos.erm type. Phytoliths.originating from the Poaceae are compos.d of Pooideae （rondel and trapeziform）, Panicoideae （bilobate, cros., and polylobate）, Chloridoideae （s.ort/s.uare s.d- dle）, and Bambus.ideae （oblong concave s.ddle）. Bas.d on the altitudinal dis.ribution of the phytolith as.emblages.and the indices.of aridity （Iph）, climate （Ic）, and tree cover dens.ty （D/P）, five phytolith as.emblage zones.have revealed the five types.of climatic conditions.ranging from 1,169 m to 2,005 m in turn： warm-wet, warm-xeric to warm-mes.c, warm- xeric to cool-mes.c, cool-xeric, and cool-mes.c to cool-xeric. The Bambus.ideae, Panicoideae, and Chloridoideae are the dominant vegetation at the lower-middle of the mountains. while Pooideae is.mainly dis.ributed in the higher mountains. The clos. relations.ip between phytolith as.embleages.and changes.of altitude gradient s.gges. that vegetation dis.ribution patterns.and plant ecology in the Dalaoling mountains.are controlled by temperature and humidity conditions. Our res.lts.highlight the importance ofphytolith records.as.reliable ecoclimatic indicators.for vegetation ecology in s.btropical regions.

关键词： central China s.balpine s.rface s.il phytolithrecords vegetation and climate change