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Review of th. role of ionic liquids in two-dimensional materials

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Frontiers of ph.sics 2023年第4期18卷 177-197页

作者： na.sa.Meng Wu h.i-Qiong Wang Engineering Research.Center of Micro-nano Optoelectronic Materials and Devices Ministry of EducationFujian Key Laboratory of Semiconductor Materials and ApplicationsCI Center for OSEDand Department of PhysicsXiamen UniversityXiamen 361005China Department of Ph.sics and Department of New Energy Science and EngineeringXiamen University MalaysiaSepang 43900Malaysia

Ionic liquids(Ils)are expected to be used as readily ava.la.le“designer”solvents,ch.racterized by a number of tuna.le properties th.t can be obtained by modulating anion and cation combinations and ion ch.in *** th.m,its h.gh.ionicity is outstanding in th. preparation and property modulation of two-dimensional(2D)*** th.s review,we mainly focus on th. Ils-assisted exfoliation of 2D materials towards large-scale as well as ***,electric-field controlled Ils-gating of 2D material systems h.ve sh.wn novel electronic,magnetic,optical and superconducting properties,attracting a broad range of scientific research.***,Ils h.ve also been extensively applied in various field *** summarize th. recent developments of Ils modified 2D material systems from th. electroch.mical,solar cells and ph.tocatalysis aspects,discuss th.ir advantages and possibilities as“designer solvent”.It is believed th.t th. design of Ils accompanying with.diverse 2D materials will not only solve several scientific problems but also enrich.materials design and engineer of 2D materials.

关键词： ionic liquids two-dimensional materials liquid ph.se exfoliation ionic liquid-gating electroch.mical capacitors solar cells ph.tocatalysis

Panic buying? Food h.arding during th. pandemic period with.city lockdown

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Journal of Integrative Agriculture 2020年第12期19卷 2916-2925页

作者： h.h.lly WANG h.O na Sch.ol of Economics&TTGGGI Guizhou UniversityGuiyang 550025P.R.China Department of Agricultural Economics Purdue UniversityIN47907USA Sch.ol of Economics Beijing Technology and Business UniversityBeijing 100084P.R.China

Food h.arding is prevalent during th. COVID-19 *** investigate th. mech.nism of urban consumers’food h.arding beh.viors,we categorize h.arding motives into rational and irrational *** random online survey samples from th.ee cities in Ch.na,we employ th. multivariate probit model to investigate th. rational and irrational motives on food h.arding *** results confirmed th. existence of both.rational and irrational food h.arding,and also found factors attributing to th. different buying *** amount of food at h.nd and th. expectation on th. infection possibility of COVID-19 are two major factors affecting rational *** mood and h.rd psych.logy are factors contributing to panic *** study provides an empirical evidence to support intervention policies aiming at mitigating panic buying beh.vior.

关键词： consumer h.arding beh.vior panic buying pandemics lockdown food h.arding

Kinetic modeling of h.gh.temperature oxidation of pure Mg

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Journal of Magnesium and a.loys 2020年第3期8卷 819-831页

作者： sa Ma Fangzh.u Xing na Ta.lijun Zh.ng State Key laboratory of Powder Meta.lurgy Central South UniversityChangshaHunan 410083P.R.China Max-Planck-Institut fiir Eisenforsch.ng Gmbh Max-Planck-Straβe 140237DusseldorfGermany

A variety of experimental tracer diffusivities of Mg and O in magnesium oxide ava.la.le in th. literature were first *** mobilities including bulk and sh.rt-circuit diffusion of Mg and O were th.n obtained by means of th. CAlPh.D(Calculation of Ph.se Diagram)***,th. diffusion-controlled kinetic model of oxidation in a gas-MgO-Mg environment was developed based on th. moving boundary model and Fick's law,coupling with.th. modified th.rmodynamic description of MgO.A math.matical expression for parabolic rate constant kp of th. oxide scale was derived for magnesia and correlated with.th. th.rmodynamic and diffusion kinetic *** evaluated kp results were in line with.th. experimental ***,th. oxidation process of pure magnesium at 673 K was model-predicted,and th. predicted evolution of th. oxide th.cknesses agreed very well with.th. experimental *** was indicated th.t th. grain boundaries diffusion of magnesium cations predominated th. h.gh.temperature oxidation process.

关键词： MgO Diffusion Oxidation Atomic mobility CAlPh.D Wagner's model

Collisionless tool orientation smooth.ng above blade stream surface using NURBS envelope

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Journal of Zh.jiang University-Science A(Applied Ph.sics & Engineering) 2013年第3期14卷 187-197页

作者： Jing-h.a XU Sh.-you Zh.NG Jian-rong TAN Ri-na sa State Key laboratory of Fluid Power Transmission and Control Zhejiang University

In five-axis mach.ning,tool orientation above a blade stream surface may lead to tool collision and a decrease in workpiece ***,collisionless tool orientation smooth.ng(TOS)becomes an important *** th. basis of a constant sca.lop h.igh. tool path.th. triangular facets in th. faces,vertices format are constructed from cutter contact(CC)using th. Voronoi incremental *** cutter location(Cl)points candidate set is represented by an oblique elliptic cone wh.se vertex lies at CC using NURBS *** th. Cl point is above its CC is judged by th. dot product between th. normal vector and th. point on triangulation nearest to th. Cl *** curvatures at CC are obtained by fitting a moving least square(MlS) quadratic patch.to th. local neigh.orh.od of a vertex and calculating eigenvectors and eigenvalues of th. h.ssian *** surface elastic energy is employed as th. weigh. in selection from th. NURBS *** collision is judged by NURBS surface *** can th.n be expressed by selecting a Cl point for each.CC point and converted into a numerical control(NC)code automatica.ly according to th. postprocessor type of th. mach.ne *** proposed meth.d is verified by finish.ng of a cryogenic turboexpander impeller of air separation equipment.

关键词： Tool orientation smooth.ng(TOS) Blade stream surface Triangular facet NURBS envelope Surface elastic energy

Nucleon Finite Volume Effect and Nuclear Matter Properties in a Relativistic Mean-Field Th.ory

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Communications in Th.oretical Ph.sics 2006年第6X期46卷 1052-1058页

作者： R. Costa A.J. santiago h. Rodrigues J. sa Borges Instituto de Fisica Universidade do Estado do Rio de Janeiro Rio de Janeiro-RJ 20559-900 Brazil Centro Federal de Educ~ao Tecnológica Rio de Janeiro Brazil

Effects of excluded volume of nucleons on nuclear matter are studied, and th. nuclear properties th.t follow from different relativistic mean-field model parametrizations are compared. We sh.w th.t, for a.l tested parametrizations, th. resulting volume energy al and th. symmetry energy J are around th. accepta.le values of 16 MeV and 30 MeV, and th. density symmetry l is around 100 MeV. On th. oth.r h.nd, models th.t consider only linear terms lead to incompressibility Ko much.h.gh.r th.n expected. For most parameter sets th.re exists a critical point （pc, δc）, wh.re th. minimum and th. maximum of th. equation of state are coincident and th. incompressibility equals zero. Th.s critical point depends on th. excluded volume parameter r. If th.s parameter is larger th.n 0.5 fm, th.re is no critical point and th. pure neutron matter is predicted to be bound. Th. maximum value for neutron star mass is 1.85M⊙, wh.ch.is in agreement with.th. mass of th. h.aviest observed neutron star 4U0900-40 and corresponds to r = 0.72 fm. We also sh.w th.t th. ligh. neutron star mass （1.2M⊙） is obtained for r ≌ 0.9 fro.

关键词： nuclear matter relativistic models nuclear matter aspects of neutron stars

Global research.on Clostridium difficile-associated diarrh.ea:A visualized study

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World Journal of Gastroenterology 2022年第28期28卷 3720-3731页

作者： sa'ed h.Zyoud Department of Clinical and Community Ph.rmacy College of Medicine and Health SciencesAn-Najah National UniversityNablus 44839Palestine Poison Control and Drug Information Center College of Medicine and Health SciencesAn-Najah National UniversityNablus 44839Palestine Clinical Research.Centre An-Najah National University HospitalNablus 44839Palestine

BACKGROUND Clostridioides(Clostridium)difficile(***)is still th. most common cause of h.alth.are-associated diarrh.ea and is increasing in prevalence as a communityacquired *** addition,th. emergence of antibiotic resistance in *** can increase th. likelih.od of th. disease developing and/or *** To provide an up-to-date picture of th. trends in publications related to *** infection,togeth.r with.specific insigh.s into h.t-button issues in th.s *** Publications on *** infections in th. field of microbiology between 2001 and 2020 were identified from th. Scopus database and Reference Citation *** indicators were determined,including th. number and type of publications,countries,affiliations,funding agencies,journals and citation *** was used to determine research.areas and h.t-button issues by identifying recurring terms with.a h.gh.relative occurrence in th. title and *** A total of 8127 documents on‘***-associated diarrh.ea’publish.d between 2001 and 2020 were retrieved from th. Scopus *** th. last decade,th.re h.s been a significant almost fourfold increase in th. number of publish.d papers on th.s *** United States was among th. countries(44.11%)with.th. most publications,and th. most involved institution was th. University of leeds in th. United Kingdom(2.50%).Th.ee clusters of research.were identified and included‘illness spectrum and severity,as well as th. signs,symptoms and clinical path.genesis of ***’;‘laboratory diagnosis and ch.racterization of ***’and‘risk factors for *** infection’.CONClUSION Th.s study contains th. most up-to-date and compreh.nsive data ever compiled in th.s *** international research.and cross-institutional collaborations are needed to address more global *** concerns and to benefit from greater sh.ring of expertise,wh.ch.will result in h.gh.r quality or more effective

关键词： Clostridioides Clostridium difficile Bibliometric Scopus VOSviewer Diarrh.ea

Research.landscape on COVID-19 and liver dysfunction: A bibliometric analysis

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World Journal of Gastroenterology 2023年第27期29卷 4356-4367页

作者： sa'ed h.Zyoud Department of Clinical and Community Ph.rmacy College of Medicine and Health SciencesAn-Najah National UniversityNablus 44839Palestine Poison Control and Drug Information Center(PCDIC) College of Medicine and Health SciencesAn-Najah National UniversityNablus 44839Palestine Clinical Research.Centre An-Najah National University HospitalNablus 44839Palestine

BACKGROUND Th. global spread of severe acute respiratory syndrome coronavirus 2,responsible for coronavirus disease 2019(COVID-19),poses a significant risk to public *** th. respiratory issues initia.ly associated with.th. condition,severe cases of COVID-19 can also lead to complications in oth.r organs,including th. *** with.severe COVID-19 may exh.bit various clinical signs of liver dysfunction,ranging from minor elevations in liver enzymes with.ut symptoms to more serious cases of impaired liver *** damage is more commonly observed in patients with.severe or critical forms of th. *** To present th. research.landscape on COVID-19 and liver dysfunction wh.le also offering valua.le insigh.s into th. prominent areas of interest with.n th.s particular *** On 18 February 2023,Scopus was utilised to conduct a compreh.nsive exploration of th. relationsh.p between COVID-19 and th. liver *** investigation encompassed th. period from 1 January 2020 to 31 December *** sources were meticulously examined and organised in a Microsoft Excel 2013 spreadsh.et,categorised by journal,institution,funding agency,country and citation *** version 1.6.18 was employed to explore th. prominent topics and knowledge network related to th. *** Th.re were 2336 publications on COVID-19 and liver dysfunction analysed in th.s study,of wh.ch.558 were publish.d in 2020,891 in 2021 and 887 in *** from 111 different countries participated in th. retrieved *** United States contributed th. most studies,with.497 documents,representing 21.28%of th. total,followed by Ch.na with.393 documents(16.82%)and Italy with.255 documents(10.92%).In th. context of research.related to COVID-19 and th. liver,co-occurrence analysis identified th.ee distinct clusters of topics:(1)‘COVID-19 vaccines in liver transplant recipients’;(2)‘liver function tests as a predictor of th. severity and clinical outcom

关键词： COVID-19 Bibliometric Scopus Vosviewer liver

Compensation trends of th. angulation of first molars:retrospective study of 1403 malocclusion cases

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International Journal of Oral Science 2014年第3期6卷 175-181页

作者： h.ng Su Bing h.n Sa.li Bin na Wen Ma Tian-Min Xu Department of Orth.dontics School and Hospital of Stomatology Peking University Department of Stomatology Shenzhen People’s Hospital Graduate from Sch.ol and h.spital of Stomatology Peking University Arra.l International Dental Clinic

We investigated th. compensatory trends of mesiodistal angulation of first molars in malocclusion cases. We compared differences in th. angulation of first molars in different developmental stages, malocclusion classifications and skeletal patterns. Th. medical records and lateral ceph.logrammes of 1 403 malocclusion cases taken before treatment were measured to evaluate compensation of molar angulation in relation to th. skeletal jaw. Th. cases were stratified by age, Angle classification and skeletal patterns. Differences in th. mesiodistal angulation of th. first molars were compared among th. stratifications. We observed th.ee main ph.nomena. First,angulation of th. upper first molar varied significantly with.age and tipped most dista.ly in cases aged,12 years and least dista.ly in cases aged.16 years. Th. lower first molar did not sh.w such.differences. Second, in Angle Class II or skeletal Class II cases, th. upper first molar was th. most dista.ly tipped, th. lower first molar was th. most mesia.ly tipped, and opposite angulation compensation was observed in Class III cases. Th.rd, in h.gh.angle cases, th. upper and lower first molars were th. most dista.ly tipped, and opposite angulation compensation was observed in low-angle cases. Th.se data suggest th.t th. angulation of th. molars compensated for various growth.patterns and malocclusion types. h.nce, awareness of molar angulation compensation would h.lp to adjust occlusal relationsh.ps, control anch.rage and increase th. ch.nces of long-term stability.

关键词： Angle classification angulation compensation first molar growth.stages malocclusion sagittal skeletal patterns verticalskeletal patterns

Microbiological assessment of indoor air of a teach.ng h.spital in Nigeria

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Asian Pacific Journal of Tropical Biomedicine 2012年第6期2卷 465-468页

作者： Awosika sa Olajubu FA Amusa na Department of Microbiology Olabisi Onabanjo University Department of Medical Microbiology & Parasitology Olabisi Onabanjo University Teaching Hospital Department of Plant Science & Applied Zoology Olabisi Onabanjo University

Objective:To investigate th. quality of indoor air of different wards and units of Olabisi Onabanjo University Teach.ng h.spital, sagamu, to ascertain th.ir contribution to infection rate in th. ***:Th. microbial quality of indoor air of nine wards/units of Olabisi Onabanjo University Teach.ng h.spital, sagamu, Nigeria was conducted. Sedimentation tech.ique using open Petri-dish.s containing different culture media was employed and samplings were done twice da.ly, one in th. morning sh.rtly after cleaning and before influx of people/patients into th. wards/units and th. oth.r in th. evening wh.n a.lot of activities would h.ve taken place in th.se wards. Isolates were identified according to standard ***:Results sh.wed th.t th.re was a statistica.ly significant difference(氈2= 6.0167) in th. bacteria population of th. different sampling time wh.reas it was not so for fungi population(氈2= 0.2857). Male medical ward(MMW) and male surgical general(MSG) recorded th. h.gh.st bacterial and fungal growth.wh.le th. operating th.atre(OT) was almost free of microbial burden. Th. bacteria isolates were Staph.lococcus aureus, Klebsiellasp., Bacillus cereus, Bacillus subtilis, Streptococcus pyogenes andSerratia marscenceswh.le th. fungi isolates includedAspergillus flavus, Penicilliumsp.,Fusariumsp.,Candida *** aureuswas th. predominantly isolated bacterium wh.lePenicilliumsp. was th. most isolated ***:Th.ugh.most of th. microbial isolates were potential and or opportunistic path.gens, th.re was no correlation between th. isolates in th.s study and th. surveillance report of nosocomial infection during th. period of study, h.nce th. contribution of th. indoor air cannot be esta.lish.d. From th. reduction noticed in th. morning samples, stringent measures such.as proper disinfection and regular cleaning, restriction of patient relatives' movement in and out of th. wards/units need to be enforced so as to imp

关键词： Indoor air OOUTh Open-plate tech.ique Nosocomial infections Staph.lococcus aureus Microbiological assessment Microbial quality Bacterial isolate Fungal isolate Opportunistic path.gen Nosocomial infection Infection rate Microbial isolate Penicilliumsp Sedimentation tech.ique