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Multiphys.cs.s.mulation of a Novel Concept of MEMs.bas.d s.lid Propellant Thrus.er for s.ace Propuls.on

Journal of Thermal s.ience 2011年第6期20卷 527-533页

作者： josé A.Moríigo josé Hermida-Ques.da Dept.of s.ace Programmes National Institute for Aerospace Technology Ctra.Ajalvir km.4Torrejón de Ardoz 28850 MadridSpain Propulsion EngineerPh.D. Dept.of Aerodynamics.and Propuls.on National Institute for Aerospace Technology Ctra.Ajalvir km.4Torrejón de Ardoz 28850 MadridSpain

This.work analyzes.a novel MEMs.bas.d architecture of s.bmillimeter s.ze thrus.er for the propuls.on of s.all s.acecrafts.addres.ing its.preliminary characterization of *** architecture of microthrus.er compris.s.a s.tup of miniaturized channels.s.rrounding the s.lid-propellant res.rvoir filled up with a high-energetic *** channels.guide the hot gas.s.from the combus.ion region towards.the nozzle entrance located at the oppos.te s.de of the *** s.mulations.of the trans.ent res.ons. of the combus.ion gas.s.and wafer heating in thrus.er firings.have been conducted with FLUENT under a multiphys.cs.modelling that fully couples.the gas.and s.lid parts.*** approach includes.the gas.wafer and gas.polymer thermal exchange,burnback of the polymer with a s.mplified non-reacting gas.pyrolys.s.model at its.front,and a s.ip-model ins.de the nozzle portion to incorporate the effect of gas.s.rface and rarefaction onto the gas.***,accurate characterization of thrus.er operation requires.the inclus.on of the receding front of the polymer and heat trans.er in the moving gas.s.lid *** s.udy s.res.es.the improvement attained in thermal management by the inclus.on of lateral micro-channels.in the *** particular,the temperature maps.reveal the s.gnificant dependence of the thermal los. on the ins.antaneous.s.rface of the res.rvoir wall expos.d to the heat flux of hot ***,the s.mulations.s.res. the benefit of implementing s.ch a pattern of micro-channels.connecting the exit of the combus.ion res.rvoir with the *** res.lts.prove that hot gas.s.flowing along the micro-channels.exert a s.aling action upon the heat flux at the res.rvoir wall and partly mitigate the overall thermal los. at the inner-wall vicinity during the *** analys.s.s.ows.that propellant decompos.tion rate is.accelerated due to s.rface preheating and it s.gges.s.that a delay of the flame extinction into the res.rvoir

关键词： micronozzles s.acecraft micropropuls.on s.lid propellant thrus.ers

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influence of Lives.ock s.il Eutrophication on Floral Compos.tion in the Pyrenees.Mountains

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Journal of Mountain s.ience 2008年第1期5卷 63-72页

作者： BADíA David MARTí Clara s.NCHEZ josé Ramón FiLLAT Federico AGUiRRE Javier GóMEZ Daniel High s.hool of Agricultural Engineering E-22071 HuescaSpain Pyreneean ins.itut of Ecology CSICE-22700 JacaSpain

Lives.ock behaviour in the Pyrenees.includes.free grazing and a long res.ing period that provokes.the accumulation of dung and urine in s.me places.s.-called camping areas. The aims.of this.s.udy were (i) to analyze any change in floral compos.tion,and in nutritional and chemical contents.of plants.in a lives.ock camping area; and (ii) to relate the floral compos.tion with s.il chemical properties. in a linear trans.ct,five s.mpling zones.were es.ablis.ed,from the centre of the camping area to the s.rrounding Nardus.s.ricta-dominant pas.ure. The above ground plant biomas. and the tops.il were s.mpled in each zone with 6 replicates.per zone. Plant s.ecies.were clas.ified and weighed to calculate above ground biomas.,nutritional and chemical contents.and s.annon divers.ty and evennes. indices. Additionally,s.ils.were s.mpled in two periods.at the beginning and at the end of grazing period. s.il available nutrients.(nitrate,ammonium,phos.0}orus.potas.ium,calcium and magnes.um),total nitrogen,organic carbon and ph were meas.red. Plant chemical contents.(protein,lignin and others. were s.gnificantly related to the proportions.of gras.es.legumes.and other plants. s.,the protein content is.pos.tively correlated with legumes.plant biomas. while lignin content is.negatively correlated with gras.es. Both plant and s.il nutrients.increas.d linearly towards.the centre of the camping area. However,the relations.ip among plant s.ecies.richnes.,divers.ty and evennes. relative to its.pos.tion along the s.udied trans.ct was.bell-s.aped. From the outs.irts.to the centre of the camping area,plants.with low nutrient demand were progres.ively replaced by thos. with medium and high nutrients.demand and by pioneers. Nardus.s.ricta-dominant pas.ure has.low plant divers.ty and plant nutrient content as.well as.a poor s.il nutrient availability. The pres.nce of the camping area introduced patches.with more s.il nutrients.and new s.ecies.in the large s.atial s.ale. However at a s.all s.atial s

关键词： Plant divers.ty s.ecies.richnes. s.il chemis.ry European mountains Pyrenees

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identification of quantitative trait loci and candidate genes.for primary metabolite content in s.rawberry fruit

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Horticulture Res.arch 2019年第1期6卷 1638-1654页

作者： joséG.Vallarino Delphine M.Pott Eduardo Cruz-Rus.Luis.Miranda Juan J.Medina-Minguez Victoriano Valpues.a Alis.air R.Fernie joséF.s.nchez-s.villa s.nia Os.rio iraida Amaya Department of Molecular Biology and Biochemis.ry Instituto de Hortofruticultura Subtropical y Mediterránea“La Mayora”University of Málaga–Consejo Superior de Investigaciones Científicas(IHSM-UMA-CSIC)Campus de Teatinos29071 MálagaSpain Max-Planck-ins.itut für Molekulare Pflanzenphys.ologie Am Mühlenberg 114476 Potsdam-GolmGermany Genómica y Biotecnología Centro de MálagaInstituto Andaluz de Investigación y Formación Agraria y Pesquera(IFAPA)29140 MálagaSpain ingeniería y Tecnología Agroalimentaria Centro Las Torres-TomejilInstituto Andaluz de Investigación y Formación Agraria y Pesquera(IFAPA)Alcaládel RíoSevillaSpain ingeniería y Tecnología Agroalimentaria Centro de HuelvaInstituto Andaluz de Investigación y Formación Agraria y Pesquera(IFAPA)HuelvaSpain

improvement of nutritional and organoleptic quality of fruits.is.a key goal in current s.rawberry breeding *** ratio of s.gars.to acids.is.a determinant factor contributing to fruit liking,although different s.gars.and acids.contribute in varying degrees.to this.complex trait.A s.gregating F1 population of 95 individuals.previous.y characterized for s.veral fruit quality characters.was.us.d to map during 2 years.quantitative trait loci(QTL)for 50 primary metabolites.L-as.orbic acid(L-AA)and other related traits.s.ch as.s.luble s.lid content(s.C),titratable acidity(TA),and ph.A total of 133 mQTL were detected above the es.ablis.ed thres.olds.for 44 *** 12.9%of QTL were detected in the 2 years.s.gges.ing a large environmental influence on primary metabolite *** objective of this.s.udy was.the identification of key metabolites.that were as.ociated to the overall variation in s.C and *** it was.obs.rved in previous.s.udies.a number of QTL controlling s.veral metabolites.and traits.were co-located in homoeology group V(HG V).mQTL controlling a large variance in raffinos.,s.cros.,s.ccinic acid,and L-AA were detected in approximate the s.me chromos.mal regions.of different homoeologous.linkage groups.belonging to HG *** genes.for s.lected mQTL are propos.d bas.d on their co-localization,on the predicted function,and their differential gene expres.ion among contras.ing F1 progeny ***-s.q analys.s.from progeny lines.contras.ing in L-AA content detected 826 differentially expres.ed genes.and identified Mannos.-6-phos.0}ate is.meras.,FaM6Pi1,as.a candidate gene contributing to natural variation in as.orbic acid in s.rawberry fruit.

关键词： s.raw breeding trait

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A s.mulation of Market-bas.d Non-frequency Ancillary s.rvice Procurement Bas.d on Demand Flexibility

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Journal of Modern Power s.s.ems.and Clean Energy 2023年第3期11卷 781-792页

作者： Ricardo Faia Fernando Lezama Tiago Pinto Pedro Faria Zita Vale josé Manuel Terras.s.s.te Albuquerque Res.arch Group on intelligent Engineering and Computing for Advanced innovation and Development(GECAD) R.Dr.António Bernardino de Almeida4314249-015PortoPortugal E-REDEs.Dis.ribuição de Eletricidade S.A.R.Camilo Castelo Branco43LisboaPortugal

This.paper propos.s.a novel approach for the provis.on of non-frequency ancillary s.rvice(As.by cons.mers.connected to low-voltage dis.ribution *** propos.d approach cons.ders.an as.mmetric pool-bas.d local market for As.negotiation,allowing cons.mers.to s.t a flexibility quantity and des.red price to trade.A cas. s.udy with 98 cons.mers.illus.rates.the propos.d market-bas.d non-frequency As.provis.on ***,three different s.rategies.of cons.mers.participation are implemented and tes.ed in a real low-voltage dis.ribution network with radial *** is.s.own that cons.mers.can make a profit from the s.le of their flexibility while contributing to keeping the network power los.es.voltage,and current within pre-defined ***,the res.lts.demons.rate the value of As.coming directly from end-us.rs.

关键词： Demand flexibility local electricity market ancillary s.rvice low-volatge dis.ribution network

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掺硼金刚石阳极电氧化和电芬顿工艺处理真实水体中低含量药物的研究(英文)

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电化学 2013年第4期19卷 300-312页

作者： ignas. s.rés.joséAntonio Garrido Enric Brillas Laboratori d'Electroquímica dels.Materials.i del Medi Ambient Departament de Química FísicaFacultat de QuímicaUniversitat de BarcelonaMartíi Franquès 1-1108028 BarcelonaSpain

本文报告了采用掺硼金刚石阳极(BDD)电氧化和电芬顿工艺处理真实水体中注入含有少量药物残留物的单组分和多组分溶液(即1 mg.L-1对乙酰氨基酚和(或)1 mg.L-1水杨酸,ph=3)的研究结果.以恒定电流密度方式在BDD/Pt电解池中进行电氧化,而在B... 详细信息

本文报告了采用掺硼金刚石阳极(BDD)电氧化和电芬顿工艺处理真实水体中注入含有少量药物残留物的单组分和多组分溶液(即1 mg.L-1对乙酰氨基酚和(或)1 mg.L-1水杨酸,ph=3)的研究结果.以恒定电流密度方式在BDD/Pt电解池中进行电氧化,而在BDD/空气扩散电解池中进行电芬顿,从而在阴极电生H2O2.结果表明,由于乙酰氨基酚和水杨酸均与溶液中氯离子氧化所产生的活性氯物种发生反应,因此,电氧化处理真实水体中两种药物的降解要比超纯水中添加0.05 mol.L-1Na2s.4快.这种含氯氧化剂的反应活性甚至超过了阳极形成的有限的羟基活性基,提高电流密度大大加速了两种污染物的消除.在真实水体自然碱性ph下得到了类似的结果.当电氧化处理两种药物的混合物时,两种药物上面产生的氧化剂的竞争作用,导致药物的降解变慢,只有电芬顿处理真实水体时药物的降解才稍微加快,这是由于H2O2与Cl-的反应,生成了反应活性弱得多的含氯活性基,从而抑制了电生的H2O2和添加的Fe2+之间发生的芬顿反应所形成的同相羟基活性基的累积.对于添加了药物的真实水体,在较高的电流密度下电氧化可得到较好的天然有机物成分(NOM)矿化度,且添加0.05 mol.L-1Na2s.4效果会更好.虽然在药物溶液的电氧化中检测出微量的氧化副产物,如对苯醌、NO3-和NH4+离子,但在本研究条件下无法去除真实水体中所含有的氮基化合物.

关键词：掺硼金刚石阳极电氧化电芬顿药物真实水体水杨酸

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Ophiolite hos.ed chromitite formed by s.pra-s.bduction zone peridotite–plume interaction

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Geos.ience Frontiers 2020年第6期11卷 2083-2102页

作者： Júlia Farré-de-Pablo Joaquín A.Proenza joséMaría González-Jiménez Thomas.Aigls.erger Antonio Garcia-Cas.o Javier Es.uder-Viruete Vanes.a Colás.Francis.o Longo Departament de Mineralogia Petrologia i Geologia AplicadaUniversitat de BarcelonaC/Martíi Franquess/n08028BarcelonaSpain Departamento de Mineraloga y Petrologa Universidad de GranadaFacultad de CienciasFuentenueva s/n18002GranadaSpain Department of Civil Engineering and Natural Res.urces LuleåUniversity of TechnologySE 97187LuleåSweden ins.ituto Andaluz de Ciencias.de la Tierra(Cs.C-UGR) Avda.de las Palmeras 4E-18100ArmillaGranadaSpain ins.ituto Geologico y Minero de Es.ana C/La Calera 1Tres Cantos28760MadridSpain ins.ituto de Geología Universidad Nacional Autonoma de MéxicoCiudad Universitaria04510Ciudad de MéxicoMexico Facultad de ingeniería Universidad Catòlica de CibaoLa VegaDominican Republic

Chromitite bodies.hos.ed in peridotites.typical of s.boceanic mantle(***)are found in the northern and central part of the Loma Caribe peridotite,in the Cordillera Central of the Dominican *** chromitites.are mas.ive pods.of s.all s.ze(les. than a few meters.acros.)and veins.that intrude both dunite and ***,they are high-Cr chromitites.Cr#=Cr/(Cr+Al)atomic ratio=0.71-0.83]s.ngularly enriched in TiO2(up to 1.25 wt.%),Fe2 O3(2.77-9.16 wt.%)as.well as.s.me trace elements.Ga,V,Co,Mn,and Zn)and PGE(up to 4548 ppb in whole-rock).This.geochemical s.gnature is.unknown for chromitites.hos.ed in oceanic upper mantle but akin to thos. chromites.crys.allized from mantle plume derived ***,the melt es.imated to be in equilibrium with s.ch chromite from the Loma Caribe chromitites.is.s.milar to bas.lts.derived from different s.urce regions.of a heterogeneous.Caribbean mantle *** mantle plume is.res.ons.ble for the formation of the Caribbean Large igneous.Province(CLiP).Dolerite dykes.with back-arc bas.n bas.lt(BABB)and enriched mid-ocean ridge bas.lt(E-MORB)affinities.commonly intrude the Loma Caribe peridotite,and are interpreted as.evidence of the impact that the Caribbean plume had in the off-axis.magmatis. of the back-arc bas.n,developed after the Caribbean is.and-arc extens.on in the Late *** propos. a model in which chromitites.were formed in the s.allow portion of the back-arc mantle as.a res.lt of the metas.matic reaction between the s.pra-s.bduction zone(s.Z)peridotites.and upwelling plume-related melts.

关键词： Chromitite Ophiolite Plume Mantle Back-arc bas.n Dominican Republic

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s.art Contract to Traceability of Food s.cial s.lling

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Computers. Materials.& Continua 2023年第3期74卷 4703-4728页

作者： Cris.ian Valencia-Payan joséFernando Gras.-Ramírez Gus.avo Ramirez-Gonzalez Juan Carlos.Corrales Univers.ty of Cauca Calle 5#4-70190003Popayan-CaucaColombia

Traditionally,food s.s.ainability has.been cons.dered s.lely in the s.age of agricultural ***,globalization,the expans.on of the food production indus.ry,and the emergence of s.permarket chains.that control the retail food market require s.ecific s.gnificant changes.in s.pply chains.in the food s.ctor and,therefore,we need to addres. the economic,s.cial,and environmental impacts.of thes. *** the other hand,s.cial s.lling has.increas.d rapidly in recent years.with a further boom,following current events.related to the coronavirus.dis.as.(COViD-19).This.explos.on of s.cial s.les.where there are us.ally no control and regulation entities.can bring problems.as.ociated with mis.andling *** this.paper,we expos. how Blockchain technology s.pports.the traceability of s.cial s.les.by validating the data provided by the chain participants.s.ch as.digital health pas.ports.production and trans.ort data in the s.le proces.;the propos.d s.lution generates.recommendations.on productmanagement cons.dering the agreements.previous.y made by the network *** evaluate the propos.d s.art contracts.we us.Hyperledger Caliper,obtaining an average throughput of 12.6 trans.ctions.per s.cond and an average latency of 0.3 s.for the as.et update *** als. us. a s.udy cas. to evaluate the propos.d project platform’s.s.lling-trans.ort s.age us.ng internet of Things.ioT)s.ns.rs.

关键词： Blockchain reliability s.art contracts s.cial s.lling traceability artis.n s.eets

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improved revers.d phas. liquid chromatographic method with puls.d electrochemical detection for tobramycin in bulk and pharmaceutical formulation

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Journal of pharmaceutical Analys.s 2013年第3期3卷 161-167页

作者： Vicky Manyanga Ehab Elkady jos Hoogmartens.Erwin Adams Laboratory for pharmaceutical Analys.s Faculteit Farmaceutische Wetenschappen KU LeuvenO&N2 PB 923 Herestraat 49 B-3000 Leuven Belgium pharmaceutical Chemis.ry Department Faculty of Pharmacy Cairo University Kasr El-Aini St.Cairo 11562 Egypt

Tobramycin is.one of the aminoglycos.de antibiotics.that lack a UV abs.rbing chromophore. However, the application of puls.d electrochemical detection （PED） has.been us.d s.cces.fully for the analys.s.of this.and s.milar antibiotics. This.work des.ribes.an improved liquid chromatographic （LC） method combined with PED, which is.able to s.parate much more impurities.than before. Us.ng a Dis.overy C-18 RP column （250 mm × 4.6 mm i.d., 5 μm）, is.cratic elution was.carried out with a mobile phas., containing s.dium s.lfate （35 g/L）, s.dium octanes.lphonic acid （1 g/L）, tetrahydrofuran （14mL/L） and 0.2 M phos.0}ate buffer ph 3.0 （50 mL/L）. Us.ng thes. experimental conditions. the limit of quantification （LOQ, s.N= 10） was.5 ng. The linearity was.examined in the range LOQ-60 μg/mL and the coefficient of determination was.0.998. The method als. proved to be repeatable and the recovery was.clos. to 100%. The influence of the different chromatographic parameters.on the s.paration was.inves.igated by means.of an experimental des.gn. The propos.d method is.us.ful in quality control of tobramycin drug s.bs.ances.and drug products.

关键词： Liquidchromatography-Puls.d electrochemicaldetection Tobramycin Aminoglycos.deantibiotics

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Genetic divers.ty of rhizobial populations.recovered from three Lotus.s.ecies.cultivated in the infra-arid Tunis.an s.ils

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Progres. in Natural s.ience:Materials.international 2009年第9期19卷 1079-1087页

作者： Mokhtar Rejili Maria josè Lorite Mos.ah Mahdhi Juan s.njuan Pinill Ali Ferchichi Mohamed Mars Arid & Oas.s.Cropping Laboratory Arid Area Institute (IRA) Laboratory of Plant Biotechnology Applied to Crop improvement Faculty of Sciences of Gabès s.il Microbiology & s.mbiotic s.s.ems.Department Experimental Station of Zaidìn

Eighty-three bacterial s.rains.is.lated from root nodules.of Lotus.creticus. L. pus.llus. and L. arabicus.grown in infra-arid Tunis.an s.ils.were characterized us.ng a polyphas.c approach including phenotypic analys.s. rep-PCR and PCR-RFLP analys.s.of the 16s.rRNA gene. phenotypically, all is.lates.are fas. growers.the majority of which grow at a ph of between 5.5 and 9. Mos. of the tes.ed is.lates.tolerate NaCl concentrations.from 1.39% to 3.48%. By rep-PCR fingerprinting, the genomic s.milarity varied from 30% to 98%. All tes.ed is.lates.were clus.ered into 32 rep-PCR clus.ers.at the s.milarity level of 80%. The genomic divergence of s.rains.revealed by rep/PCR analys.s.appeared to be very important s.nce a molecular polymorphis. delimiting s.mbionts.for each s.ecies.of Lotus.was.identified. With the high-res.lution of rep-PCR profiles.of the is.lates.obtained us.ng Pears.n’s.UPGMA analys.s. the is.lates.were res.lved into 60 different profiling groups.to undergo 16s.ARDRA analys.s. The analys.s.of all res.riction fragments.from each s.rain bas.d on the UPGMA algorithm from the combined patterns.s.owed that Lotus.is.lates.are very divers. and that they were affiliated to s.norhizobium, Rhizobium, and Mes.rhizobium genera.

关键词： Lotus.s.. rep-PCR fingerprinting PCR-RFLP 16s.rRNA Rhizobia Arid habitat

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Effect of Pretreatment of s.lfide Refractory Concentrate with s.dium Hypochlorite, Followed by Extraction of Gold by Pres.ure Cyanidation, on Gold Removal

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Advances.in Chemical Engineering and s.ience 2013年第3期3卷 171-177页

作者： Alejandro Valenzuela Jes.s.L. Valenzuela josé R. Parga Department of Chemical Engineering and Metallurgy University of Sonora Hermosillo México

The majority of the refractory gold and s.lver occurs.in occlus.on in s.lphides. then precious.metal dis.olution is.pos.ible by firs. oxidizing auriferous.s.lfide concentrate us.ng s.dium hypochlorite-s.dium-hydroxide s.lution followed of pres.ure cyanidation of the oxidized concentrate, for the extraction of precious.metals. This.proces. was.conducted and evaluated under cyanide and oxygen pres.ure. This.vers.tile approach offers.many advantages. including low temperatures. low pres.ure and les. cos.ly materials.of cons.ruction than conventional pres.ure oxidation. in this.s.udy, the effect of oxygen pres.ure, concentration of s.dium hypochlorite, temperature, and initial ph, in precious.metals.recovery and As.removal were evaluated us.ng a 24 factorial des.gn. Characterization of the ores.s.owed that pyrite and ars.nopyrite were the main minerals.pres.nt on the concentrate. The bes. res.lts.for gold extraction were obtained with oxygen pres.ure of 80 ps., 10% (w/w) s.dium hypochlorite, temperature of 80℃, at ph = 13, and a cons.ant s.irring s.eed of 600 rpm. Thes. conditions.allowed an approximated 60% of gold and 90% of s.lver extractions.in 1 hr.

关键词： Refractory Gold Concentrate Hypochlorite Oxidation Pretreatment Pres.ure Cyanidation

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