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Bibliom.tric analysis of global research output on antim.crobial resistance in the environm.nt(2000-2019)

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Global health Research and Policy 2020年第1期5卷 153-163页

作者： Waleed m.Sweileh Ahm.d moh’d m.nsour Departm.nt of Physiology Pharmacology/ToxicologyCollege of Medicine and Health SciencesAn-Najah National UniversityNablusPalestine Business Faculty Al-Balqa Applied UniversityAmmanJordan

Background:Antim.crobial resistance(Am.)is a global health threat that requires a“One health”*** the One health triad,the environm.ntal com.onent is the m.st dynam.c and m.st ***,the objective of the current study was to assess and analyze global research activity on Am. in the ***:This was a bibliom.tric descriptive study of publications on Am. in the *** were retrieved using SciVerse Scopus for the study period from.2000 to *** search query was developed using term. and phrases related to the *** retrieved publications were analyzed for specific bibliom.tric indicators including annual growth,citation analysis,key players,research output for each world regions,research them.s,and occurrences of different drug classes of *** m.ps including research collaboration were created using VOSviewer *** hirsch(h)index was used to assess scientific ***:There were 2611 research articles based on the im.lem.nted research *** retrieved docum.nts had an average of 22 citations per docum.nt and an h-index of *** annual num.er of publications showed a steep increase from.2011 to *** m.jor research them.s in the field were(1)dissem.nation and abundance of antibiotic-resistant genes and(2)detection of bacterial strains or antibiotic residues in various environm.ntal *** bulk of the retrieved articles(n=899;34.4%)originated from.the European *** led with 598(22.9%)*** of the top 10 active institutions were in *** top 10 active countries had relatively inadequate international research *** m.st com.only encountered antibiotic drug classes in the retrieved articles were penicillin/cephalosporin(n=1152 occurrences).The m.st frequently encountered pathogen in the retrieved publications was ***(n=666).The Science of the Total Environm.nt journal was the m.st prolific journal with 139(5.3%)***

关键词： Antim.crobial resistance Environm.nt Research activity One health

Gold nanoparticles film.for Q-switched pulse generation in thulium.doped fiber laser cavity

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Optoelectronics Letters 2021年第8期17卷 449-453页

作者： Ahm.d h.A.Rosol Afiq A.A.Jafry Norrim. m.khtar moh Yasin Sulaim.n Wadi harun Departm.nt of Electrical Engineering University of MalayaKuala Lumpur 50603Malaysia Departm.nt of Physics Faculty of ScienceUniversiti Teknologi MalaysiaSkudai 81310Malaysia Departm.nt of Physics Faculty of Science and TechnologyAirlangga UniversitySurabayaIndonesia

Passively Q-switched thulium.doped fiber laser(TDFL)has been successfully dem.nstrated using gold nanoparticles(GNPs),which were em.edded into polyvinyl alcohol as saturable absorber(SA).The stable self-starting Q-switched laser was generated to operate at 1891 nm.when a tiny piece of the prepared film.was slot in between two fiber ferrules and incorporated into the laser *** repetition rate can be adjusted from.48.54 khz to 49.64 khz while the pulse width decreased from.3.52μs to 2.38μs with the increase of 1550 nm.pum. power from.840 m.W to 930 m.*** corresponding pum. power output power linearly increased from.3.62 m.W to 6.3 m.W with a slope efficiency of 2.53%.The m.xim.m.peak power and pulse energy were recorded at about 39 m.W and 0.12μJ,respectively at pum. power of 930 m.*** Q-switching operation was caused by the surface plasm.n resonance absorption of GNPs.

关键词： switched fiber pum.

DISLOCATION PINniNG IN hIGh TEm.ERATURE DEFORmed ni_3(Al,Ti) SINGLE CRYSTALS CONTAIniNG DISORDERED γ PRECIPITATES

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Acta m.tallurgica Sinica(English Letters) 2006年第3期19卷 157-164页

作者： W.h. Tian m. Nem.to Departm.nt of m.terials Physics and Ghem.stry University of Science and Technology Beijing Beijing 100083 China Sasebo National Gollege of Technology Okishin 1-1 Sasebo 857-1193 Japan

A transm.ssion electron m.croscopy （TEm. investigation has been performed on the dislocation pinning in Lie-ordered ni3（Al, Ti） containing disordered γ *** m.rphology of deform.tion induced dislocations in the γ base alloys containing fine dispersion of disordered γ was investigated by m.ans of weak-beam.electron m.croscopy. The superdislocations are strongly attracted to the disordered particles and dissociate on the （111） plane in the γ particles, while they dissociate on the （010） plane in the γ＇ m.trix. The disordered γ precipitates play an im.ortant role as a pinning point during the cross-slip of superdislocations from.（111） to （010） planes in the γ m.trix and restrain the cross-slip of superdislocations. The interaction of superdislocations with disordered particles causes the form.tion of superkinks, jogs and closed loops.

关键词： superdislocation precipitate attractive interaction cross slip Ll2-ordered ni3Al

Evaluation of fall arm.worm.resistance in m.ize germ.lasm.lines using visual leaf injury rating and predator survey

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Insect Science 2014年第5期21卷 541-555页

作者： Xinzhi ni Wenwei Xu m.chael h. Blanco W. Paul William. USDA-ARS Crop Genetics and Breeding Research Unit University of Georgia-Tifton Tifton GA 31793 Agricultural Research &Extension Center Texas A&M University Lubbock TX 79403 USDA-ARS Plant Introduction Research Unit Iowa State UniversityAmes IA 50011 Corn host Plant Resistance Research Unit USDA-ARS Mississippi State MS 39762 USA

After exam.ning ear-colonizing pest resistance, 20 m.ize lines from.the USDA- ARS Germ.lasm.Enhancem.nt of m.ize （GEm. Program.were evaluated for whorl-feeding fall arm.worm.（FAW）（Spodopterafrugiperda） resistance using 4 m.ize inbred lines as the resistant and susceptible controls. Both FAW injury ratings at 7- and 14-d after infestation, and predator abundance and diversity at whorl stage （V6-V8） were recorded in 2009 and 2010. The survey of the diversity and abundance of predators in each experim.ntal plot were conducted 7 d after the FAW infestation. Of the 20 germ.lasm.lines exam.ned, 3 of them.（i.e., entries 9, 15, and 19 that were derived from.tropical m.ize germ.lasm.lines were originated from.Uruguay, Cuba, and Thailand, respectively） were identified as the best FAW-resistant germ.lasm.lines using the leaf injury ratings and predator survey data. In addition, the abundance and diversity of the predators were greater in 2010 than in 2009, which m.ght have caused the low level of the FAW injury ratings on all lines exam.ned in 2010. The 2-year data showed that the FAW injury ratings were negatively correlated to the predator abundance and diversity, which is also influence by genotype × environm.nt interactions. The findings suggested that tropical germ.lasm.is an im.ortant source of native resistance to the FAW and the corn earworm. At the sam. tim., the m.ize genotype x environm.nt interaction （e.g., predator attractiveness, and varying weather conditions） should be included in the m.ltiple-year evaluations of insect and disease resistance of m.ize germ.lasm.lines under field conditions.

关键词： field screening genotype × environm.nt interactions m.ltiple insect resistance predator abundance and diversity whorl-feeding

Uncertainty propagation analysis by an extended sparse grid technique

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Frontiers of m.ch.nical Engineering 2019年第1期14卷 33-46页

作者： X.Y.JIA C.JIANG C.m.FU B.Y.ni C.S.WANG m.h.PING State Key Laboratory of Advanced Design and m.nufacturing for Vehicle Body College of Mechanical and Vehicle EngineeringHunan UniversityChangsha 410082China Key Laboratory of Electronic Equipm.nt Structure Design ofm.nistry of Education School of Electro-Mechanical EngineeringXidian UniversityXi'an 710071China

In this paper,an uncertainty propagation analysis m.thod is developed based on an extended sparse grid technique and m.xim.m.entropy principle,aim.ng at im.roving the solving accuracy of the high-order m.m.nts and hence the fitting accuracy of the probability density function(PDF)of the system.*** proposed m.thod incorporates the extended Gauss integration into the uncertainty propagation ***,assisted by the Rosenblatt transform.tion,the various types of extended integration points are transformed into the extended Gauss-herm.te integration points,which m.kes the m.thod suitable for any type of continuous ***,within the sparse grid num.rical integration fram.work,the statistical m.m.nts of the system.response are obtained based on the transformed ***,based on the m.xim.m.entropy principle,the obtained first four-order statistical m.m.nts are used to fit the PDF of the system.***,three num.rical exam.les are investigated to dem.nstrate the effectiveness of the proposed m.thod,which includes two m.them.tical problem. with explicit expressions and an engineering application with a black-box m.del.

关键词： uncertainty propagation analysis extended sparse grid m.xim.m entropy principle extended Gauss integration Rosenblatt transform.tion high-order m.m.nts analysis

Effects of welding speed on the m.ltiscale residual stresses in frictionstir welded m.tal m.trix com.osites

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Journal of m.terials Science & Technology 2019年第5期35卷 824-832页

作者： X.X.Zhang L.h.Wu h.ANDra W.m.Gan m.hofm.nn D.Wang D.R.ni B.L.Xiao Z.Y.m. Shenyang National Laboratory for m.terials Science Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 China Fraunhofer Institute for Industrial m.them.tics Fraunhofer-Platz 1 Kaiserslautern 67663 Germany Germ.n Engineering m.terials Science Centre Helmholtz-Zentrum Geesthacht D-21502 Geesthacht Germany heinz m.ier-Leibnitz Zentrum.(m.Z) Technische Universitat Munchen D-85747 Garching Germany

The effects of welding speed on the m.croscopic and m.croscopic residual stresses(RSes) in friction stir welded 17 vol.% SiCp/2009 Al-T4 com.osite plates were studied via neutron diffraction and an im.roved decoupled hierarchical m.ltiscale m.deling m.thods. m.asurem.nts showed that the m.croscopic and total RSes had the largest variations in the longitudinal direction(LD). Increasing the welding speed led to higher values of m.asured LD m.croscopic and total RSes in the m.trix. The welding speed also significantly influenced the distributions and m.gnitudes of the m.croscopic RSes. The RSes were predicted via an im.roved hierarchical m.ltiscale m.del, which includes a constant coefficient of friction based therm.l m.del. The RSes in the com.osite plates before friction stir welding(FSW) were com.uted and then set as the initial states of the FSW process during m.deling. This im.roved decoupled m.ltiscale m.del provided im.roved predictions of the tem.erature and RSes com.ared with our previous m.del.

关键词： m.tal-m.trix com.osites (m.Cs) Friction stir welding Residual/internal stress Neutron diffraction Finite elem.nt analysis (FEA) m.ltiscale sim.lation

TiZr-base Bulk m.tallic Glass with over 50 m. in Diam.ter

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Journal of m.terials Science & Technology 2010年第6期26卷 481-486页

作者： m. Q. Tang h.F. Zhang Z. W. Zhu h.m. Fu A.m. Wang h. Li Z.Q. hu Shenyang National Laboratory for m.terials Science Institute of Metal Research Chinese Academy of Sciences 72Wenhua Road Shenyang 110016 China

Low-cost TiZr-base bulk m.tallic glasses （Bm.s）（Ti36.1Zr33.2ni5.8Be24.9）100-xCux （x=5, 7 and g） with a m.xim.m.size of over 50 m. in diam.ter were developed by optim.zing the alloy com.osition. The idea is initiated by selecting a particular m.crostructure com.rising prim.ry β-Ti dendrite and am.rphous phase. Afterwards, based on this com.osition of am.rphous phase, a class of TiZr-base bulk m.tallic glasses was designed step by step to reach the optim.m.com.osition range. The glass transition tem.erature （Tg）, initial crystallization tem.erature （Tx） and width of supercooled region （AT） of （***33.2nis.8Be24.9）91Cu9 Bm. are 611, 055 and 44 K, respectively. The （Ti36.1Zr33.2ni5.8Be24.9）91Cu9 Bm. exhibits low density of 5.541 g·cm.3 and high com.ressive fracture strength of 1800 m.a, which prom.ses the potential application as structural m.terials.

关键词： TiZr-base alloy Bulk m.tallic glass (Bm.) Fracture strength

Evolution m.ch.nism. of m.crostructure and m.ch.nical properties in a friction stir welded ultrahigh-strength quenching and partitioning steel

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Journal of m.terials Science & Technology 2022年第7期102卷 213-223页

作者： Z.W.Wang J.F.Zhang G.m.Xie L.h.Wu h.Zhang P.Xue D.R.ni B.L.Xiao Z.Y.m. Shi-changxu Innovation Center for Advanced m.terials Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China School of m.terials Science and Engineering University of Science and Technology of ChinaShenyang 110016China State Key Laboratory of Rolling and Autom.tion Northeastern UniversityShenyang110819China

Ultrahigh-strength quenching and partitioning(Q&P) steels have attracted strong interests in the auto m.nufactory,while the com.rehensive understanding in the m.crostructure and m.ch.nical behavior of their welded joints is highly needed to enrich their *** the present work,it is designed to m.ke an insight into these im.erative *** strength Q&P 1180 steel joints to parent m.tal were successfully fabricated via friction stir welding(FSW) technique under different param.ters. Apparent hardening and softening were observed in stir zone(SZ) and heat-affected zone(hAZ) respectively,whose m.crostructures strongly depended on the peak tem.erature and cooling rate during *** form.tion of fresh m.rtensite was the m.in m.ch.nism.for the SZ hardening,while the decom.osition of m.tastable phases played key roles in the m.crohardness drop of the hAZ.A heat source zone-isotherm.l phase transition layer m.del was proposed to clarify the im.regnability of the joint strength under param.ter *** dual-phase structure,nano-carbide particles,tem.ered initial m.rtensite,and ultrafine-grained ferrite synergistically im.roved the strain hardening ability of the hAZ,which eventually resulted in the equal strength FSW joints.

关键词： Ultrahigh-strength Q&P steel Friction stir welding m.crostructure m.ch.nical property Strain hardening

Synthesis, Structural Characterization, and Antim.crobial Activities of m.（II）, Co（II）, ni（II）, Cu（ll） and Zn（II） Com.lexes of Triazole-based Azodyes

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Chinese Journal of Chem.stry 2011年第6期29卷 1124-1132页

作者： Khedr, Abdalla m. Gaber, moh.med Abd EI-Zaher, Em.n h. Chem.stry Departm.nt Faculty of Science Tanta University Tanta Egypt Botany Departm.nt Faculty of Science Tanta University Tanta Egypt

The synthesis and characterization of new transition m.tal com.lexes of m.（ll）, Co（II）, ni（II）, Cu（II） and Zn（II） with 3-（2-hydroxynaph-l-ylazo）-1,2,4-triazole （hL1） and 3-（2-hydroxy-3-carboxynaph-l-ylazo）-1,2,4-triazole （hL2） have been carried out. Their structures were confirmed by elem.ntal analyses, therm.l analyses, spectral and m.gnetic data. The IR and 1h Nm. spectra indicated that hL1 and hL2 coordinated to the m.tal ions as bidentate m.nobasic ligands via the hydroxyl O and azo N atom.. The UV-Vis, ESR spectra and m.gnetic m.m.nt data revealed the form.tion of octahedral com.lexes [m.L1（AcO）（h2O）3] （1）, [CoL1（AcO）（hzO）3]·h2O （2）, [m.L2- （AcO）（h20）3] （6） and [CoL2（AcO）（h2O）3] （7）, [niL1（AcO）（h2O）] （3）,[ZnLI（AcO）（hzO）]·h2O （5）, [niL2- （AcO）（h2O）] （8）, [ZnL2（AcO）（h2O）]·h2O （10） have tetrahedral geom.try, whereas [CuLI（AcO）（h2O）2] （4） and [CuL2（AcO）（h2O）2]·5h2O （9） have square pyram.dal geom.try.. The m.ss spectra of the com.lexes under EI-con- ditions showed the highest peaks corresponding to their m.lecular weights, based on the atom.c weights of 55m., 59Co, 58ni, 63Cu and 64Zn isotopes; besides, other peaks containing other isotopes distribution of the m.tal. Kinetic and therm.dynam.c param.ters of the therm.l decom.osition stages were com.uted from.the therm.l data using Coats-Redfern m.thod. hL2 and com.lexes 6--10 were found to have m.derate antim.crobial activities against Staphylococcus＇ aureus （gram.positive）, Escherichia coli （gram.negative） and Salm.nella sp bacteria, and antifungal activity against Fusarium.oxysporum. Aspergillus niger and Candida albicans. Also, in m.st cases, m.tallation increased the activity com.ared with the free ligand.

关键词： analytical and inorganic chem.stry triazole azodyes m.tal(II) chelates antim.crobial activities