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Mechanisms and r.usability potentials of zir.onium-polyazir.dine-engineer.d tiger.nut r.sidue towar.s anionic pollutants

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中国化学工程学报:英文版 2023年第8期60卷 275-292页

作者： Alexander.Nti Kani evans Dovi Aar.n Alber. Ar.ee r.nping Han Zhaohui Li Lingbo Qu College of Chemistr. Green Catalysis CenterZhengzhou UniversityZhengzhou 450001China

Access to fr.sh water.its availability,and its quality ar. a global challenge to humanity,lar.ely due to human activities in the ***,global water.secur.ty has been jeopar.ized,r.quir.ng ur.ent r.mediation to safeguar. our.ver. ***,a novel and facilely engineer.d zir.onium and polyethylenimine adsor.ent based on tiger.nut r.sidue (TNr. was pr.par.d,and its adsor.tive capabilities towar.s a model dyestuff and nutr.ent wer. invested thr.ugh a batch adsor.tion *** developed adsor.ent,zir.onium-polyethylenimine-engineer.d tiger.nut r.sidue (TNr.PEI–Zr. was char.cter.sed by scanning electr.n micr.scopy,Four.er.tr.nsfor. infr.r.d spectr.scopy,X-r.y diffr.ction analysis,and X-r.y photoelectr.n spectr.scopy to under.tand its mor.hology and sur.ace chemistr. and pr.dict its adsor.tion ***@PEI–Zr.had a p H point of zer. char.e (pH_(zpc)) of *** intr.duction of salts inhibited the r.moval efficiency of Alizar.n r.d (Ar. and phosphate (PO_(4)^(3–)) in the or.er.of HCO_(3)^(-)>SO_(4)^(2–)>Cl^(-).Incr.asing temper.tur.s (293–313 K) favour.d the adsor.tion pr.cess at pH *** Langmuir.model suited the adsor.tion pr.cesses of both Ar.and PO_(4)^(3–),implying homogenous and monolayer.r.moval of pollutants with a maximal capacity of 537.8 mg·g^(-1)and 100.5 mg·g^(-1)at a dose of 0.01 g,*** r.te-deter.ining steps of Ar.and PO_(4)^(3–)followed a pseudo-secondor.er.kinetic model and wer. ther.odynamically spontaneous with an incr.ase in r.ndomness at the solid-solution *** adsor.ent’s r.cyclability was notable and outper.or.ed most adsor.ents in ter.s of r.moval ***@PEI–Zr.was found to be stable,and its use in pr.ctical wastewater.decontamination was effective,ecologically acceptable and fr.e of secondar. pollution pr.blems.

关键词： Adsor.tion Modified tiger.nut r.sidue Alizar.n r.d Phosphate Leaching r.gener.tion

Labor.tor. Validation of an Integr.ted Sur.ace Water. Gr.undwater.Model

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Jour.al of Water.r.sour.e and Pr.tection 2013年第4期5卷 377-394页

作者： T. D. Spar.s B. N. Bockelmann-evans r. A. Falconer Hydr.-Envir.nmental r.sear.h Centr. Cardiff School of Engineering Cardiff University Cardiff UK

The hydr.dynamic sur.ace water.model DIVAST has been extended to include hor.zontally adjacent gr.undwater.flows. This extended model is known as DIVAST-SG (Depth Integr.ted Velocities and Solute Tr.nspor. with Sur.ace Water.and Gr.undwater.. After.development and analytical ver.fication the model was tested against a novel labor.tor. set-up using open cell foam (60 por.s per.inch—ppi) as an idealised por.us media r.pr.senting a r.ver.ank. The Hyder.Hydr.ulics Labor.tor. at Car.iff Univer.ity has a lar.e tidal basin that was adapted to simulate a sur.ace water.gr.undwater.scenar.o using this foam, and used to validate the DIVAST-SG model. The pr.per.ies of the labor.tor. set-up wer. measur.d and values wer. deter.ined for.hydr.ulic conductivity (per.eability) and por.sity, evaluated as 0.002 m/s and 75% r.spectively. Lessons lear.t in this initial exper.mentation wer. used to modify the flume constr.ction and impr.ve the exper.mental pr.cedur., with fur.her.exper.mentation being under.aken of both water.level var.ations and tr.cer.movement. Valuable data have been obtained fr.m the labor.tor. exper.ments, allowing the validity of the numer.cal model to be assessed. Modifications to the input file to include r.pr.sentations of the joints between the foam blocks allowed a good fit between the obser.ed and modelled water.levels. Encour.ging cor.elation was obser.ed in tr.cer.exper.ments using r.odamine-WT dye between the obser.ed exit points of the tr.cer.fr.m the foam, and the modelled exit points with time.

关键词： Integr.ted Sur.ace Water Gr.undwater Modelling Labor.tor. Exper.ments Open Cell Foam

Or.hogonal quantification of soluble inducible T-cell costimulator.ICOS)in healthy and diseased human ser.m

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Jour.al of Phar.aceutical Analysis 2022年第2期12卷 317-323页

作者： Kevin McKinski Dean McNulty Fr.ncesca Zappacosta Mar. Bir.hler.Matt Szapacs Chr.stopher.evans Bioanalysis Immunogenicity&BiomarkersGlaxoSmithKlineCollegevillePA19426USA

Inducible T-cell costimulator.ICOS),a homodimer.c pr.tein expr.ssed on the sur.ace of activated T-cells,is being investigated as a potential ther.peutic tar.et to tr.at var.ous *** studies have r.por.ed aber.ant incr.ases in the soluble for. of ICOS(sICOS)in human ser.m in disease-state patients,pr.mar.ly using commer.ial ELISA ***,r.sults fr.m our.in-house immunoassay did not show these aber.ant incr.ases,leading us to speculate that commer.ial sICOS ELISAs may be pr.ne to *** dir.ctly tested that hypothesis and found that one widely used commer.ial kit yields falsepositives and is pr.ne to human anti-mouse antibody *** then analyzed a panel of healthy,cancer.chr.nic hepatitis C vir.s,systemic lupus er.thematosus,and diffuse cutaneous systemic scler.sis human ser.m using our.in-house immunoassay and r.por.ed the measur.d sICOS concentr.tions in these *** even well char.cter.zed immunoassay methods ar. pr.ne to non-specific inter.er.nce,we also developed a novel sICOS LC-MS/MS method to confir. the *** these or.hogonal appr.aches,we show that sICOS is a low abundance soluble pr.tein that cannot be measur.d above appr.ximately 20 pg/mL in human ser.m.

关键词： ICOS Immunoassay LC-MS/MS Biomar.er HAMA

Oxygen-deficient titanium dioxide suppor.ed cobalt nano-dots as efficient cathode mater.al for.lithium-sulfur.batter.es

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Jour.al of Ener.y Chemistr. 2020年第9期29卷 390-397,I0012页

作者： You Li Xiao Zhang Guihua Liu Ashton Ger.ar.t Katelyn evans Aizhong Jia Zisheng Zhang Hebei Pr.vincial Key Labor.tor. of Gr.en Chemical Technology and High Efficient Ener.y Saving Tianjin Key Laboratory of Chemical Process SafetySchool of Chemical Engineering and TechnologyHebei University of TechnologyTianjin 300130China Depar.ment of Chemical and Biological Engineer.ng University of OttawaOttawaOntario K1N 6N5Canada

Lithium sulfur.Li-S)batter.es demonstr.te gr.at pr.mise for.efficient ener.y stor.ge systems once the lithium polysulfide(LPS)shuttling and sluggish r.dox kinetics can be well ***,we developed a sea ur.hin-str.ctur.d oxygen-deficient titanium dioxide semiconductor.anchor.d with cobalt nano-dots(Co@TiO2-x)as a high-per.or.ance multifunctional sulfur.host mater.al for.Li-S *** sea ur.hin-str.ctur.d Co@TiO2-x offer. str.ng str.ctur.l stability and str.ngthened chemical inter.ction towar.s ***,the incor.or.tion of Co nano-dots into TiO2 leads to incr.ased oxygen vacancies,which augments the electr.cal conduction and benefits LPS conver.ion acceler.tion as *** a r.sult,the oxygen vacancy-r.ch Co@TiO2-x composite exhibits excellent conductivity,str.ng LPS confinement and pr.moted sulfur.electr.chemical kinetics,r.nder.ng enhanced LPS shuttling inhibition and r.pid r.dox *** to these featur.s,the Co@TiO2-x/S cathode exhibits a dischar.e capacity of 803 mAh g-1at 1 C and a good cyclic stability upon 500 cycles with a low capacity fading r.te of 0.07%per.*** syner.istic design of conductive multifunctional LPS bar.ier.is also pr.mising to enlighten the mater.al engineer.ng in other.ener.y stor.ge applications.

关键词： Titanium dioxide Oxygen vacancy Cobalt nano-dots Lithium-sulfur.batter. Conver.ion kinetics

A compr.hensive r.view of the effects of biochar.on soil physicochemical pr.per.ies and cr.p pr.ductivity

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Waste Disposal and Sustainable Ener.y 2022年第4期4卷 343-359页

作者： Ammal Abukar. James Seutr. Kaba evans Dawoe Akwasi Adutwum Abunyewa Depar.ment of Agr.for.str. Kwame Nkrumah University of Science and TechnologyKumasiGhana Depar.ment of For.str. and For.st r.sour.es Management University for Development StudiesTamaleGhana

Intensive land use has sever.l detr.mental effects on land function and imposes an undue bur.en on the *** far.ing and pollution by heavy metals have negatively influenced many *** is now gaining attention as a major.r.sear.h subject in the ar.as of agr.cultur.,envir.nment,and ener.y as an eco-fr.endly soil *** use of biochar.for.agr.cultur.l and envir.nmental pur.oses has been widely studied and ***,ther. ar. few r.views on biochar.str.ctur.s and other.biochar.*** r.view pr.sents an over.iew of cur.ent developments in the effects of numer.us biochar.physicochemical pr.per.ies and biochar.uses,such as utilization as a soil micr.bial activity,contaminant adsor.ent,ion exchange,soil amendment,gas stor.ge and water.*** physical,chemical and biological pr.per.ies have been discussed following amendments to the soil and conditions of ***,scientific obser.ation and r.sear.h ar. r.quir.d to identify the negative effects of biochar.in pr.par.tions and *** is envisaged that fur.her.in-depth studies of biochar.amendment will lead to a deeper.under.tanding of biochar.s r.lationships with soils and that r.views of the negative impacts of biochar.could r.veal ways in which they might be mitigated.

关键词： Biochar Hydr.ulic pr.per.ies Soil pr.per.ies Negative effect Modification Cr.p yield

In vitr. investigation of the effect of dair. pr.pionibacter.a on r.men pH,lactic acid and volatile fatty acids

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Jour.al of Integr.tive Agr.cultur. 2017年第7期16卷 1566-1575页

作者： Jianbiao Luo Chaminda Senaka r.nadheer. Stuar. King Cr.ig evans Sur.nder.Baines School of Envir.nmental&Life Sciences The University of NewcastleCallaghan NSW 2308Australia Advanced Food Systems r.sear.h Unit College of Health and BiomedicineVictoria UniversityMelbourne VIC 3030Australia School of Health Sciences The University of NewcastleCallaghan NSW 2308Australia

r.minal acidosis is a pr.valent disor.er.in r.minants such as dair. cows and feedlot beef cattle, caused pr.mar.ly by the inclusion of a high per.entage of r.adily fer.entable concentr.tes in the diet. The disor.er.pr.sents as an accumulation of lactic acid, a decr.ase of pH in the r.men and a subsequent imbalance of the r.men fer.entation pr.cess with detr.mental impacts on the animal＇s health and pr.ductivity. Dair. pr.pionibacter.a, a gr.up of bacter.a char.cter.sed by utilization of lactic acid as the favour.d car.on sour.e, with pr.pionic acid pr.duced as a by-pr.duct, wer. evaluated in this study as potential dir.ct-fed micr.bials for.use in contr.lling r.minal acidosis. Acidosis was simulated by intr.duction of high concentr.tions of lactic acid into r.men fluid samples and a multi-str.in in vitr. analysis was conducted, wher.by changes in pH and lactic acid metabolism wer. compar.d in identical acidified r.men samples, following inoculation with var.ous pr.pionibacter.a. This was followed by a study to evaluate the effect of bacter.al inoculation dosage on acid metabolism. The r.sults indicated that lactic acid levels in the r.men fluid wer. significantly r.duced, and pr.pionic acid and acetic acid concentr.tions both significantly incr.ased, following addition of pr.pionibacter.a. Significant ＇between str.ins＇ differ.nces wer. obser.ed, with Pr.pionibacter.um acidopr.pionici 341, Pr.pionibacter.um fr.udenr.ichfi CSCC 2207, Pr.pionibacter.um jensenfi NCFB 572 and P. jensenii 702 each pr.ducing mor. r.pid r.duction of lactic acid concentr.tion than P. fr.udenr.ich# CSCC 2206, P. acidopr.pionici ATCC 25562 and Pr.pionibacter.um thoenii ATCC 4874. Fur.her.or., the efficacy of this application was dosage r.lated, with the r.tes of r.duction in lactic acid levels and pr.duction of pr.pionic acid, both significantly gr.ater.for.the higher.（10^10 cfu mL-1） compar.d with lower.（10^5 cfu mL-1） dosage inoculation. The r.sults confir.ed that the intr.duction of pr.pion

关键词： pr.biotics r.minal acidosis lactic acid pr.pionic acid dair. Pr.pionibacter.um

最小的大容量电容器——evans混合电容器

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电子元件与材料 2002年第10期21卷 13-15,18页

作者： David A.evans 白丁 evansCompany 33EasternAvenueEastProvidenceRI02914

介绍了一种由钽阳极、Ta2O5介质、液体电解质和r.O2阴极组成的高能量密度电容器——evans混合电容器 (evans Hybr.d capacitor.)。它具有与电化学电容器相当的能量密度和比电解电容器更完善的交流特性。单元工作电压达215 V。目前已实... 详细信息

介绍了一种由钽阳极、Ta2O5介质、液体电解质和r.O2阴极组成的高能量密度电容器——evans混合电容器 (evans Hybr.d capacitor.)。它具有与电化学电容器相当的能量密度和比电解电容器更完善的交流特性。单元工作电压达215 V。目前已实现了用改进封装技术将若干个该类电容器并联封装在同一外壳内。给出了50 V,18 mF混合电容的性能数据。

关键词：大容量电容器 evans混合电容器电解电容器电化学电容器

Impr.ving the Cor.osion r.sistance of A514-Q Steel Sur.ace with Ni-based Alloy Powder.Pr.cessed by Laser.Cladding

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Improving the Corrosion Resistance of A514-Q Steel Surface w...

作者： Fr.MPONG BOATENG evans 南京理工大学

学位级别：硕士

本文采用激光熔覆工艺在A514-Q海洋结构钢表面制备镍基涂层,以改善对海水的抗腐蚀性能。镍基粉末在高能量的激光的作用下快速熔化并凝固在钢(基体)表面,形成致密涂层。通过将试样浸泡在模拟海水溶液的电化学实验来测试其耐腐蚀性能,结... 详细信息

本文采用激光熔覆工艺在A514-Q海洋结构钢表面制备镍基涂层,以改善对海水的抗腐蚀性能。镍基粉末在高能量的激光的作用下快速熔化并凝固在钢(基体)表面,形成致密涂层。通过将试样浸泡在模拟海水溶液的电化学实验来测试其耐腐蚀性能,结果显示结构钢在经过激光熔覆工艺后耐腐蚀性能有了很大改善。在实验中使用电子显微镜(SEM)、能量分散光谱仪(EDS)和X射线衍射仪(Xr.)来表征熔覆层表面形貌以及内部显微组织结构。Xr.主要衍射峰对应ca-Fe置换固溶体相,奥氏体树枝晶和铁素体二次枝晶在快速冷却速率下形成。另外也测试了涂层的摩擦磨损性能和硬度。本实验结果表明运用激光熔覆工艺制备镍基涂层可以有效地提高A514-Q海洋结构钢的耐腐蚀性能。

关键词： A514-Q钢微观结构耐磨损性模拟海水激光熔覆腐蚀与涂层

Modeling of Stochastic Magnetic Per.ur.ation by r.MEF-Coils on NSTX

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Southwestern Institute of Physics Annual Report

Southwester. Institute of Physics Annual r.por. 2005年第1期 165-168页

作者： YAN Longwen T.E. evans S. M. Kaye r. Maingi 不详 Gener.l Atomics P. O. Box 85608 San Diego CA 92697 USA Plasma Physics Labor.tor. Princeton University Princeton NJ 08543 USA Oak r.dge National Labor.tor. Oak Ridge TN 37831 USA

A 3-D field line integr.tion code, Tr.P3D has been modified to model stochastic magnetic per.ur.ation pr.duced by a r.sistive wall mode, er.or.field （ r.MEF ） coil in the NSTX tokamak with ver. low aspect r.tio. The r.MEF-coil has two tur.s, which may pr.duce stochastic fields with the tor.idal mode number.of n = 1 or.3. In this study, it is found that the stochastic field of n = 3 is lar.er.than that of n=-1 for.the same coil cur.ent. Two diver.or.dischar.es with lower.single null （ LSN ） and double null （ DN ） configur.tions in the NSTX have been modeled with differ.nt r.MEF-coil cur.ents and tor.idal modes.

关键词： Stochastic magnetic per.ur.ation r.MEF coil 3-D tr.ce