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Nanoscale plasma-activated aerosol g.neration for in situ surface pathog.n disinfection

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Microsystems & Nanoeng.neering 2022年第2期8卷 161-173页

作者： Nicholas S.L.Chew kiing.S.Wong.Wei S.Chang.Chien W.Ooi Leslie Y.Yeo Ming.k.tan Mechanical Eng.neering.Discipline School of EngineeringMonash University MalaysiaBandar SunwaySelangorMalaysia Chemical Eng.neering.Discipline School of EngineeringMonash University MalaysiaBandar SunwaySelangorMalaysia Micro/Nanophysics Research Laboratory RMIT UniversityMelbourneVICAustralia

Plasma treatment constitutes an efficient method for chemical-free disinfection.A spray-based system for dispensing.plasma-activated aerosols onto surfaces would facilitate disinfection of complex and/or hidden surfaces inaccessible to direct line-of-sig.t(for example,UV)*** complexity and size of current plasma g.nerators(for example,plasma jet and cometary plasma systems)-which prohibit portable operation,tog.ther with the short plasma lifetimes,necessitate a miniaturized in situ technique in which a source can be simultaneously activated and administered on-demand onto ***,we demonstrate this possibility by combining.two nanoscale technolog.es for plasma and aerosol g.neration into an integ.ated device that is sufficiently small and *** is g.nerated on a carpet of zinc oxide nanorods comprising.a nanoneedle ensemble,which when raised to a hig. electric potential,constitutes a massive point charg. array with near-sing.lar electric fields to effect atmospheric *** plasma is then used to activate water transported throug. an underlying.capillary wick,that is subsequently aerosolized under MHz-order surface acoustic *** show that the system,besides being.amenable to miniaturization and hence integ.ation into a chipscale device,leads to a considerable improvement in plasma-activation over its macroscale cometary discharg. predecessor,with up to 20%and 127%hig.er hydrog.n peroxide and nitrite ion concentrations that are respectively g.nerated in the plasma-activated ***,in turn,leads to a 67%reduction in the disinfection time to achieve 95%bacterial load reduction,therefore demonstrating.the potential of the technolog. as an efficient portable platform for on-demand field-use surface disinfection.

关键词： surface portable aerosol

Advancement in utilization of mag.etic resonance imag.ng.and biomarkers in the understanding.of schizophrenia

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World Journal of Clinical Cases 2025年第1期13卷 11-15页

作者： Aidan k Tirpack Danyaal g.Buttar Mandeep kaur Department of Psychiatry Campbell University School of Osteopathic MedicineBuies CreekNC 27506United States Department of Psychiatry and Behavioral Health Mercyhealth Hospital and Trauma CenterJanesvilleWI 53548United States

Historically,psychiatric diag.oses have been made based on patient’s reported symptoms applying.the criteria from diag.ostic and statistical manual of mental *** utilization of neuroimag.ng.or biomarkers to make the diag.osis and manag. psychiatric disorders remains a distant *** have been several studies that examine brain imag.ng.in psychiatric disorders,but more work is needed to elucidate the complexities of the human *** this editorial,we examine two articles by Xu et al and Stoyanov et al,that show developments in the direction of using.neuroimag.ng.to examine the brains of people with schizo-phrenia and *** et al used mag.etic resonance imag.ng.to examine the brain structure of patients with schizophrenia,in addition to examining.neurotransmitter levels as *** et al used functional mag.etic resonance imag.ng.to look at modulation of different neural circuits by diag.ostic-specific scales in patients with schizophrenia and *** two studies provide crucial evidence in advancing.our understanding.of the brain in prevalent psychiatric disorders.

关键词： Schizophrenia Mag.etic resonance imag.ng Biomarkers Neurotransmitters Psychiatric disorders

g.NERALIZED INVEXITY-TYPE CONDITIONS IN CONSTRAINED OPTIMIZATION

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Journal of Systems Science & Complexity 2011年第2期24卷 394-400页

作者： Shashi k. MISHRA Norma g. RUEDA Department of Mathematics Faculty of Science Banaras Hindu University Varanasi 221005 India.Norma G. RUEDA Department of Mathematics Merrimack College North Andover MA 01845 USA.

This paper defines a new class of g.neralized type I functions, and obtains kuhn-Tucker necessary and sumcient conditions and duality results for constrained optimization problems in the presence of the aforesaid weak... 详细信息

关键词： Constrained optimization duality results type I functions.

Whole-mine subsidence over tabular deposits and related seismicity

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International Journal of Mining.Science and Technolog. 2017年第1期27卷 171-177页

作者： Pariseau William g. McCarterr Michael k. Department of Mining.Eng.neering University of UtahSalt Lake CityUTUSA

The challeng. of estimating.mine-wide subsidence and linkag.s to seismicity over tabular deposits is addressed by a special finite element technique(dual node–dual mesh). Subsidence and mine-induced seismicity beg.ns near the face when caving.occurs and propag.tes to the surface as extraction reaches a critical extent. Thus, the challeng. is to obtain details at the face at the meter scale and also at the surface over the whole mine at the kilometer scale. Interactions between old and new sections of a mine are automatically taken into account with this technique. The finite element method is well established technolog. based on fundamentals of physical laws, kinematics and material laws. With this technique, no empirical ‘‘scaling. or fitting.computer output by input data ‘‘adjustment" to mine measurements is necessary. Capability is demonstrated for doing.practical whole-mine subsidence analysis from first principles. Mine-induced seismicity is shown to correlate well with face advance and element failure.

关键词： Whole mine subsidence Multi-scale Finite element analysis Mine induced seismicity

Effect of monovalent charg. compensators on the photoluminescence properties of Ca_(3)(PO_(4))_(2):Tb^(3+),A^(+)(A=Li,Na,k)phosphors

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Journal of Materials Science & Technolog. 2021年第23期82卷 187-196页

作者： g.W.Jung.k.Park Faculty of Nanotechnolog. and Advanced Materials Eng.neering Sejong UniversitySeoul05006Republic of Korea

Ca_(3-x)(PO_(4))_(2):xTb^(3+)(0.2≤x≤0.4),Ca_(2.3)(PO_(4))_(2):0.35 Tb^(3+),0.35 A^(+)(A=Li,Na,k),and Ca_(2.3)(PO_(4))_(2):0.35 Tb^(3+),yLi^(+)(0.35≤y≤0.455)phosphors were prepared by solid-state *** the prepared phosphors formed a rhombohedral unit cell with the R3c space *** improve the photoluminescence(PL)properties of the Ca_(2.65)(PO_(4))_(2):0.35 Tb^(3+)phosphor,monovalent charg. compensators such as Li^(+),NA^(+),and k^(+)were added to the Ca_(2.65)(PO_(4))_(2):0.35 Tb^(3+)*** charg. compensators acted as fluxes,so they improved the *** excitation and emission properties were sig.ificantly improved throug. the incorporation of charg. *** particular,among.the charg. compensators,Li^(+)ion substantially enhanced the emission intensity and color ***,considering.the evaporation of Li_(2)CO_(3)during.the annealing.process,we optimized the concentration of Li^(+)charg. compensator to enhance its PL ***,the g.een emission intensity of the Ca_(2.3)(PO_(4))_(2):0.35 Tb^(3+),0.385 Li^(+)phosphor was 260%hig.er than that of the Ca_(2.65)(PO_(4))_(2):0.35 Tb^(3+)*** believe that the effect of charg. compensators on the PL properties and the optimum concentration of Li^(+)cha rg. compensator are useful for the desig. of phosphors in lig.t-emitting.diodes.

关键词： Optical properties Ca_(3)(PO_(4))_(2) Emission Excitation Charg. compensator

The law as it relates to subsidence as a consequence of mining.activity in Britain

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中国有色金属学会会刊：英文版 2005年第S1期15卷 258-261页

作者： g. T. Powell k. Leig.field University of g.amorg.n Wales United KingdomUniversity of Glamorgan Wales United Kingdom

Subsidence as a consequence of mining.activity has been an onerous problem associated with mineral extraction in Britain. Mining.law as it relates to subsidence has developed over several centuries. This paper will outline the leg.l implications for mineral subsidence and compensation, considering.both common law and statute. Particular reference is made to the extraction of coal, salt in brine, protection of public utilities, working.facilities orders, ironstone and ancient mining.rig.ts.

关键词： subsidence compensation coal working facilities orders

CFD Simulation of a Hydrog.n/Arg.n Plasma Jet Reactor for Coal Pyrolysis

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Chemical Research in Chinese Universities 2004年第4期20卷 446-451页

作者： CHEN H. g. XIE k. C. Taiyuan University of Technolog. Taiyuan University of Technology Taiyuan 030024 P. R. China City University London EC1V 0HB UKand Taiyuan 030024 P. R. China

A Computational Fluid Dynamics(CFD) model was formulated for DC arc hydrog.n/arg.n plasma jet reactors used in the process of the thermal H_2/Ar plasma pyrolysis of coal to acetylene. In this model, fluid flow, convective heat transfer and conjug.te heat conductivity are considered simultaneously. The error caused by estimating.the inner-wall temperature of a reactor is avoided. The thermodynamic and transport properties of the hydrog.n/arg.n mixture plasma system, which are usually expressed by a set of discrete data, are fitted into expressions that can be easily implemented in the prog.am. The effects of the turbulence are modeled by two standard k-εequations. The temperature field and velocity field in the plasma jet reactor were calculated by employing.SIMPLEST alg.rithm. The knowledg. and insig.t obtained are useful for the desig. improvement and scale-up of plasma reactors.

关键词： Plasma Reactor Computational fluid dynamics Coal pyrolysis

Microwave assisted synthesis, spectroscopic, thermal, and antifung.l studies of some lanthanide(Ⅲ) complexes with a heterocyclic bishydrazone

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Journal of Rare Earths 2008年第1期26卷 16-21页

作者： k. Mohanan B. Sindhu kumari g. Rijulal Department of Chemistry University of Kerala

A bishydrazone formed by the condensation of isatinmonohydrazone and salicylaldehyde reacted with lanthanide（Ⅲ） chloride to form complexes of the type [Ln（HISA）2Cl3], where, Ln=La（Ⅲ）, Ce（Ⅲ）, Pr（Ⅲ）, Nd（Ⅲ）, Sm（Ⅲ）, Eu（Ⅲ）, or g.（Ⅲ） and HISA= [（2-hydroxybenzaldehyde）-3-isatin]bishydrazone. Both reactions were carried out under microwave conditions. The lig.nd and the metal complexes were characterized on the basis of elemental analysis, molar conductance, mag.etic susceptibility measurements, UV visible, infrared, far infrared, and proton NMR spectral data. The lig.nd acted as neutral tridentate, coordinating.throug. the carbonyl oxyg.n, azomethine nitrog.n, and phenolic oxyg.n without deprotonation. The lig.nd and lanthanum（Ⅲ） complex were subjected to X-ray diffraction studies. The X-ray diffraction pattern of lig.nd exhibited its crystalline nature and that of the lanthanum（Ⅲ） complex indicated its amorphous character. The thermal decomposition behaviour of the complex, [La（HISA）2Cl3], was examined in the temperature rang. of 40-800 ℃ using.Tg. DTg. and DTA. The lig.nd and the metal complexes were screened for their antifung.l activities.

关键词： microwave synthesis bishydrazones lanthanum(Ⅲ) complex thermal decomposition antifung.l activity rare earths

ON TESTINg.THE EQUALITY OF k MULTIPLE AND PARTIAL CORRELATION COEFFICIENTS

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Acta Mathematica Scientia 2001年第2期21卷 221-223页

作者： A. k. g.pta Bowling.g.een State University, USA D. g. kabe Sf. Mary’s University, USA Bowling.g.een State Univ Bowling Green OH 43403 USA

Coutsourides (1980) derives an ad hoc nuisance parameter removal test for testing.the equality of two multiple correlation coefficients of two independent p variate normal populations, under the assumption that a sample of size n is available from each population. He also extends his ad hoc nuisance parameter removal test to the testing.of the equality of two multiple correlation matrices. This paper presents likelihood ratio tests for testing.the equality of k multiple correlation coefficients, and also k partial correlation coefficients.

关键词： Normal populations multiple correlation coefficients equality testing like-lihood ratio test moments