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Single Labor.tor. Validation of Deter.ination of 13 Tr.ce Elem.nts in r.ce by ICP-m. w.th an Over.iew.of Challenges Encounter.d

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Am.r.can Jour.al of Analytical Chem.str. 2019年第9期10卷 367-376页

作者： G. U. Chandr.sir. m. N. A. m.bar.k K. m.hatantila K. r. r. m.hanam. Industr.al Technology Institute Bauddhaloka Mawatha Colombo Sri Lanka Faculty of Science University of Colombo Colombo Sri Lanka

w.th the em.r.ing concer. on tr.ce elem.nt content in r.ce on both toxicological and nutr.tional standpoints, validation of analytical m.thod to deter.ine both essential and toxic elem.nts in r.ce is im.or.ant in or.er.to pr.duce r.liable r.sults. Ther.for., this study w.s aim.d to validate analytical m.thod to deter.ine As, Cd, Pb, Hg, Cr. Ni, Se, Cu, m., m., Fe, Co and Zn in r.ce w.ile giving an over.iew.of the challenges encounter.d and application of the m.thod to analysis tr.ce elem.nts in selected tr.ditional r.ce var.eties available in Sr. Lankan m.r.et. Sam.le digestion w.s car.ied out by m.cr.w.ve digestion and analysed by ICP-m.. The analytical m.thod w.s validated by m.asur.ng pr.cision, accur.cy, lim.ts of detection (LODs), lim.ts of quantification (LOQs), w.r.ing and linear.r.nge, r.cover. per.entage and m.asur.m.nt uncer.ainty. They show.d that the m.thod is fit for.its pur.ose as those com.lies w.th the standar. m.thod per.or.ance r.quir.m.nts of AOAC. Per.entage of r.lative standar. deviations (r.D) of r.peatability w.s not gr.ater.than 9.9% and r.Ds (%) of r.pr.ducibility w.r. not gr.ater.than 10.1% for.all elem.nts. m.an r.cover.es var.ed fr.m.81% to 110%. Lim.ts of detections of elem.nts w.r. in the r.nge of 0.04 - 0.8 m./kg and LOQs w.r. in the r.nge of 0.05 - 1.2 m./kg. Expanded uncer.ainties of tr.ce elem.nts lay betw.en 1.1% and 6.0%. Good agr.em.nt w.th the cer.ified values of Standar. r.fer.nce m.ter.al (Sr.) 1568b—r.ce Flour.analysed by the pr.posed m.thod w.th r.cover. per.entages betw.en 89.4% and 105.7% fur.her.confir.s the accur.cy and tr.ceability of the m.thod. The distr.bution patter. of essential elem.nts in all r.ce var.eties analysed w.s m. > Zn > Fe > Cu > m. > Se > Co. Even though ar.enic w.s detected in all var.eties, only the m.an concentr.tion of lead of Kaluneenati exceeds the m.xim.m.level (FAO/w.O CODEX Alim.ntar.us).

关键词： Validation Par.m.ter. Tr.ce Elem.nts r.ce m.cr.w.ve Digestion ICP-m.

m.H1 Is a Plant Or.anellar.DNA Binding and Thylakoid Pr.tein under.Pr.cise Spatial r.gulation to Alter.Developm.nt

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m.lecular.Plant 2016年第2期9卷 245-260页

作者： Kam.ldeep S. Vir.i Yashitola w.m.oldt Har.ik Kundar.ya John D. Laur.e Ido Ker.n K.r. Sunil Kum.r.Anna Block Gilles Basset Steve Luebker.Chr.stian Elow.ky Philip m. Day Johnna L. r.ose Ter.y m. Br.cker.Thom.s Elthon Sally A. m.ckenzie School of Biological Sciences Depar.m.nt of Agr.nom. and Hor.icultur. Univer.ity of Nebr.ska Lincoln NE 68588 USA Center.for.Biotechnology University of Nebraska Lincoln NE 68588 USA Depar.m.nt of Biological Sciences Louisiana State University Baton Rouge LA 70803 USA These author. contr.buted equally to this ar.icle

As m.tabolic center., plant or.anelles par.icipate in m.intenance, defense, and signaling. m.H1 is a plant- specific pr.tein involved in or.aneUar.genom. stability in m.tochondr.a and plastids. Plastid depletion of m.H1 causes her.table, non-genetic changes in developm.nt and DNA m.thylation. w. investigated the r.sh I phenotype using hem.-com.lem.ntation m.tants and tr.nsgene-null segr.gants fr.m.r.Ai suppr.s- sion lines to sub-com.ar.m.ntalize m.H1 effects. w. show.that m.H1 expr.ssion is spatially r.gulated, specifically localizing to plastids w.thin the epider.is and vascular.par.nchym.. The pr.tein binds DNA and localizes to plastid and m.tochondr.al nucleoids, but fr.ctionation and pr.tein-pr.tein inter.ctions data indicate that m.H1 also associates w.th the thylakoid m.m.r.ne. Plastid m.H1 depletion r.sults in var.egation, abiotic str.ss toler.nce, var.able gr.w.h r.te, and delayed m.tur.ty. Depletion fr.m.m.tochon- dr.a r.sults in 7%-10% of plants alter.d in leaf m.r.hology, heat toler.nce, and m.tochondr.al genom. sta- bility. m.H1 does not localize w.thin the nucleus dir.ctly, but plastid depletion pr.duces non-genetic changes in flow.r.ng tim., m.tur.tion, and gr.w.h r.te that ar. her.table independent of m.H 1. m.H1 deple- tion alter. non-photoactive r.dox behavior.in plastids and a sub-set of m.tochondr.ally alter.d lines. Ectopic expr.ssion pr.duces deleter.ous effects, under.ining its str.ct expr.ssion contr.l. Unr.veling the com.lexity of the m.H1 effect offer. insight into tr.gger. of plant-specific, tr.nsgener.tional adaptation behavior..

关键词： Thylakoid pr.tein Or.anellar.DNA binding m.H1 Epigenetic var.ation

Alzheim.r.s Disease Aβ-Am.loid Plaque m.r.hology Var.es Accor.ing to APOE Isotype

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w.r.d Jour.al of Neur.science 2023年第3期13卷 118-133页

作者： Ina Caesar.K. Peter.r. Nilsson Per.Ham.ar.tr.m.m.kael Lindgr.n Stefan Pr.kop Jam.s Schm.idler.Vahr.m.Har.utunian David m. Holtzm.n Patr.ck r. Hof Sam.Gandy Depar.m.nt of Neur.logy Icahn School of Medicine at Mount Sinai New York NY USA Depar.m.nt of Physics Chemistry and Biology Link&#246ping University Link&#246ping Sweden Depar.m.nt of Physics Norwegian University of Science and Technology Trondheim Norway Depar.m.nt of Neur.pathology Charité Universit&#228tsmedizin Berlin Berlin Germany Depar.m.nt of Psychiatr. Icahn School of Medicine at Mount Sinai New York NY USA Alzheim.r.s Disease r.sear.h Center Icahn School of Medicine at Mount Sinai New York NY USA Jam.s J. Peter. VA m.dical Center Bronx NY USA Nash Fam.ly Depar.m.nt of Neur.science and Fr.edm.n Br.in Institute Icahn School of Medicine at Mount Sinai New York NY USA Depar.m.nt of Neur.logy Hope Center for Neurological Disorders Knight Alzheimer’s Disease Research Center Washington University St. Louis MO USA r.nald m. Loeb Center.for.Alzheim.r.s Disease Icahn School of Medicine at Mount Sinai New York NY USA

Backgr.und: The apolipopr.tein E (APOE, gene;apoE, pr.tein) ε4 allele is the m.st com.only identified genetic r.sk factor.for.typical late-onset spor.dic Alzheim.r.s disease (AD). Each APOE ε4 allele r.ughly tr.ples the r.lative r.sk for.AD com.ar.d to that of the r.fer.nce allele, APOE ε3. m.thods: w. have em.loyed hyper.pectr.l fluor.scence im.ging w.th an am.loid-specific, confor.ation-sensing pr.be, p-FTAA, to elucidate pr.tein aggr.gate str.ctur. and m.r.hology in fr.sh fr.zen pr.fr.ntal cor.ex sam.les fr.m.hum.n postm.r.em.AD br.in tissue sam.les fr.m.patients hom.zygous for.either.APOE ε3 or.APOE ε4. r.sults: As expected APOE ε4/ε4 tissues had a significantly lar.er.load of CAA than APOE ε3/ε3. APOE isofor.-dependent m.r.hological differ.nces in am.loid plaques w.r. also obser.ed. Am.loid plaques in APOE ε3/ε3 tissue had sm.ll spher.cal cor.s and lar.e cor.nas w.ile am.loid plaques in APOE ε4/ε4 tissues had lar.e ir.egular.and m.lti-lobulated plaques w.th r.latively sm.ller.cor.nas. Despite the differ.nt m.r.hologies of their.cor.s, the p-FTAA stained APOE ε3/ε3 am.loid plaque cor.s had spectr.l pr.per.ies identical to those of APOE ε4/ε4 plaque cor.s. Conclusions: These data suppor. the hypothesis that one m.chanism.by w.ich the APOE ε4 allele affects AD is by m.dulating the m.cr.str.ctur. of pathological pr.tein deposits in the br.in. APOE ε4 is associated w.th a higher.density of am.loid plaques (as com.ar.d to APOE ε3). w. speculate that m.ltilobulated APOE ε4-associated plaques ar.se fr.m.m.ltiple initiation foci that coalesce as the plaques gr.w.

关键词： Alzheim.r.s Disease Am.loid Apolipopr.tein Lum.nescent Conjugated Oligothiophenes Hyper.pectr.l Separ.tion

OPTIm.L INTEr.Or.AND LOCAL Er.Or.ESTIm.TES OF A r.COVEr.D Gr.DIENT OF LINEAr.ELEm.NTS ON NONUNIFOr. Tr.ANGULATIONS

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Jour.al of Com.utational m.them.tics 1996年第4期14卷 345-362页

作者： I. Hlavacek m. Kr.zek(m.them.tical Institute, Zitna 25, CZ-11567, Pr.gue 1, Czech r.public) m.them.tical Institute 捷克斯洛伐克

w. exam.ne a sim.le aver.ging for.ula for.the gr.dieni of linear.finite elem.litsin r. w.ose inter.olation or.er.in the Lq-nor. is O(h2) for.d < 2q and nonunifor.tr.angulations. For.elliptic pr.blem. in r. w. der.ve a... 详细信息

w. exam.ne a sim.le aver.ging for.ula for.the gr.dieni of linear.finite elem.litsin r. w.ose inter.olation or.er.in the Lq-nor. is O(h2) for.d r.tr.angulations. For.elliptic pr.blem. in r. w. der.ve an inter.or.super.onver.encefor.the aver.ged gr.dient over.quasiunifor. tr.angulations. Local er.or.estim.tesup to a r.gular.par. of the boundar. and the effect of num.r.cal integr.tion ar.also investigated.

关键词： m.th Pr. OPTIm.L INTEr.Or.AND LOCAL Er.Or.ESTIm.TES OF A r.COVEr.D Gr.DIENT OF LINEAr.ELEm.NTS ON NONUNIFOr. Tr.ANGULATIONS

r.cover. of valuable m.tals fr.m.w.ste cables by em.loying m.chanical pr.cessing follow.d by spouted bed elutr.ation

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Par.icuology 2019年第4期17卷 74-80页

作者： Eduar.o H. Tanabe r.ger.m. Silva Daliom.r.L. Oliveir. Junior.Daniel A. Ber.uol Envir.nm.ntal Pr.cesses Labor.tor. (LAPAm. Chemical Engineering Department Federal University of Santa Maria - UFSM Santa Maria RS Brazil

Cables and w.r.s, w.ich ar. essential par.s of equipm.nt for.the tr.nsm.ssion of both infor.ation and electr.city, contain valuable m.ter.als including copper.(Cu) and alum.num.(Al). This exper.m.ntal w.r. evaluates the use of m.chanical pr.cessing (gr.nding and sieving), follow.d by spouted bed elutr.ation, for.separ.tion of the valuable m.ter.als (steel-coated copper. copper. and alum.num. pr.sent in w.ste coaxial and inter.et cables. A r.cover. efficiency of appr.xim.tely 90% w.s achieved for.the steel-coated copper.in coaxial cables. For.in ter.et cables, the copper.r.cover. efficiency w.s appr.xim.tely 87%. These findings dem.on str.te that it is possible to separ.te, r.cover. and r.cycle the valuable m.ter.als (m.tals) pr.sent in w.ste cables using sim.le, low.cost, and efficient m.chanical pr.cessing follow.d by spouted bed elutr.ation.

关键词： w.ste cable Elutr.ation Copper r.cycling m.chanical pr.cess

r.r.-ear.h-niobate high-entr.py cer.m.c foam. w.th enhanced ther.al insulation per.or.ance

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Jour.al of m.ter.als Science & Technology 2022年第21期116卷 94-102页

作者： r.w.Yang Y.P.Liang J.Xu X.Y.m.ng J.T.Zhu S.Y.Cao m.Y.w.i r.X.Zhang J.L.Yang F.Gao State Key Labor.tor. of Solidification Pr.cessing MIIT Key Laboratory of Radiation Detection Materials and DevicesSchool of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi’an710072China NPU-Qm.L Joint r.sear.h Institute of Advanced m.ter.als and Str.ctur. Northwestern Polytechnical UniversityXi’an710072China State Key Labor.tor. of New.Cer.m.cs and Fine Pr.cessing School of Materials Science and EngineeringTsinghua UniversityBeijing100084China State Key Labor.tor. of m.ter.als Pr.cessing and Die&m.uld Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan430074China

The intr.duction of por.us str.ctur.s into high-entr.py cer.m.cs is expected to fur.her.im.r.ve its ther.al insulation *** this w.r.,a ser.es of novel r.r.-ear.h-niobate high-entr.py cer.m.c foam.((Dy_(0.2)Ho_(0.2)Y_(0.2)Er.(0.2)Yb_(0.2))_(3)NbO_(7))w.th hier.r.hical por. str.ctur.s w.r. pr.par.d by a par.icle-stabilized foam.ng ***-scale analysis r.veals that high entr.py causes atom.displacem.nt and lattice *** high-entr.py cer.m.c foam. exhibit high por.sity(90.13%-96.13%)and ultr.low.ther.al conductivity(0.0343-0.0592 w.(m.K))at r.om.***-entr.py cer.m.c foam.pr.par.d by a 20 w.%slur.y sinter.d at 1500℃has the por.sity of 96.12%and extr.m.ly low.ther.al conductivity of 0.0343 w.(m.K).The existence of w.lls and secondar. por.s contr.butes to r.duced ther.al *** is a tem.er.tur. differ.nce of over.800℃betw.en fr.ntside and backside of the sam.le under.fir. r.sistance *** r.sear.h indicates that these as-pr.par.d high-entr.py cer.m.c foam. ar. expected to be pr.m.sing ther.al insulation m.ter.als.

关键词： r.r.-ear.h niobate High-entr.py cer.m.c foam. Par.icle-stabilized foam.ng Atom.c-scale analysis Ther.al conductivity

X-r.y m.ltiple Diffr.ction Topogr.phic Im.ging Technique For.Gr.w.h Histor. Study of Habit m.difying Im.ur.ty Doped Cr.stals

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Chem.cal r.sear.h in Chinese Univer.ities 2004年第4期20卷 411-416页

作者： LAI X. m. C. K. J. r.ber. m. C. m.ller Institute of Par.icle Science and Engineer.ng Department of Chemical Engineering University of LeedsInstitute of Particle Science and Engineering Department of Chemical Engineering University of LeedsInstitute of Particle Science and Engineering Department of Chemical Engineering University of LeedsCCLRC Daresbury Laboratory Daresbury Leeds LS2 9JT UKLeeds LS2 9JT UKLeeds LS2 9JT UKWarrington Cheshire WA4 4AD UK

A novel cr.stal char.cter.zation instr.m.nt has been built up in w.ich a com.ination of X-r.y m.ltiple diffr.ction and X-r.y topogr.phy is applied to enabling the cr.ss-cor.elation betw.en m.cr.-cr.stallogr.phic sym.etr. and its spatial dependence in r.lation to lattice defects. This facility is used to exam.ne, in a self-consistent m.nner. gr.w.h sector.dependant changes to both the cr.stallogr.phic str.ctur. and the lattice defects associated w.th the action of habit-m.difying additives in a num.er.of r.pr.sentative cr.stal gr.w.h system.. In addition, the new.instr.m.nt can be used to pr.be m.cr.-cr.stallogr.phic aspects(such as distor.ion to cr.stal sym.etr.) and r.late these in a spatially r.solved m.nner.to the cr.stal defect str.ctur. in cr.stals doped w.th know. habit m.difier..

关键词： X-r.y diffr.ction X-r.y m.ltiple diffr.ction X-r.y topogr.phy Habit m.dification Cr.stal gr.w.h Gr.w.h defects

Heat tr.nsfer.blockage in sm.ll scale com.ustion of polym.r.

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Science China(Technological Sciences) 2011年第10期54卷 2457-2467页

作者： JIANG FengHui QI HaiYing J. L. de r.S m. m. KHAN Key Labor.tor. for.Ther.al Science and Pow.r.Engineer.ng of m.nistr. of Education Tsinghua University Beijing 100084 China Fm.Global Engineer.ng & r.sear.h 1151 Boston-Providence Turnpike P.O. Box 9102 Norwood MA 02062 USA

Flam. heat tr.nsfer.blockage occur. as fuel vapor., soot and pr.ducts of com.ustion near.a bur.ing fuel sur.ace block m.ch of the heat feedbacks （including exter.al r.diative heat flux） to the fuel sur.ace of a bur.ing object. Blockage clear.y affects bur.ing r.tes and heat r.lease r.tes of fir.s. This needs to be included w.en calculating flam. heat tr.nsfer.in fir. gr.w.h m.dels. An under.tanding of bttr.ing of m.ter.als in sm.ll scale fir.s is of br.ad and vital im.or.ance for.pr.dicting their.bur.ing per.or.ance in lar.e scale fir.s. The blockage phenom.non w.s clear.y obser.ed and quantitatively m.asur.d in exper.m.nts that took advantage of the unique capability of the Fir. Pr.pagation Appar.tus （FPA） of being able to var. the am.ient oxygen concentr.tions. An indir.ct m.asur.m.nt appr.ach w.s established w.ich pr.vides an exper.m.ntal under.tanding of the concept of the blockage. The m.asur.m.nts w.r. fur.her.explained by a one-dim.nsional steady-state m.del of a diffusion flam., w.ich focuses on the r.diant absor.tion and em.ssion by the gas-soot m.xtur. of flam.s. The theor.tical m.del pr.vides a gr.ater.under.tanding of the fundam.ntal know.edge of the blockage. The over.ll heat tr.nsfer.blockage factor.can be up to 0.3 -0.4 for.Pm.A and POm. The factor.and its com.onents ar. near.y independent of the exter.al r.diation, but incr.ase as the am.ient oxygen concentr.tion r.ses. A com.ar.son betw.en exper.m.ntal data and m.del pr.diction show. a good agr.em.nt.

关键词： polym.r flam. heat tr.nsfer.blockage gas-soot m.xtur. gas absor.tion and em.ssion exter.al r.diant heat flux oxygen concentr.tion

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Coher.nt Acoustic Phonon and Its Chir.ing in Dir.c Sem.m.tal Cd_3As_2

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Chinese Physics Letter. 2018年第11期35卷 56-60页

作者： Fei Sun m.Yang m.w.Yang Q.w. H.Zhao X.Ye Youguo Shi Jim.n Zhao Beijing National Labor.tor. for.Condensed m.tter.Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190 School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049

Ultr.fast optical spectr.scopy of a single cr.stal of a Dir.c sem.m.tal Cd_3As_（2 ）is car.ied *** acoustic phonon（AP）m.de w.th centr.l fr.quency f=0.037 THz（i.e.,1.23 cm.（-1）or.0.153 m.V）is unam.iguously gener.ted and detected,w.ich w. attr.bute to laser.induced ther.al *** AP chir.ing（i.e.,var.ation of the phonon fr.quency）is clear.y detected,w.ich is ascr.bed to heat capacity var.ation w.th *** com.ar.ng our.exper.m.ntal r.sults and the theor.tical m.del,w. obtain a chir.ing tim. constant,w.ich is 31.2 ps at 6 K and 19.8 ps at 300 K,***,w. identify an asym.etr. in the AP fr.quency dom.in peak and find that it is caused by the chir.ing,instead of a Fano ***,w. exper.m.ntally dem.nstr.te that the centr.l fr.quency of AP is extr.m.ly stable w.th var.ing laser.fluence,as w.ll as tem.er.tur.,w.ich endow. Cd_3As_2application potentials in ther.oelectr.c devices.

关键词： As Cd AP Coher.nt Acoustic Phonon and Its Chir.ing in Dir.c Sem.m.tal Cd3As2