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Evaluation of the diagnostic performance of a commercial molecular assay for the screening of suspected monkeypox cases in Sri lanka

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Infectious Medicine

Infectious Medicine 2023年第2期2卷 136-142页

作者： H.B.C.Harshani g.A.liyanage D.V.r.g.ruwan u.K.I.u.Samaraweera J.I.Abeynayake Medical research Institute Colombo 08Sri Lanka

Background:The main objective of the present study was to compare the diagnostic performance of the commercial lightMix Modular Monkeypox Virus(MPXV)qPCr(TIB Molbiol,germany)assay with the in-house non-variola orthopox/monkeypox generic real-time PCr assay(ICMr-NIV,Pune)for the screening of(MPXV)cases at Medical research Institute(MrI)in Sri ***,clinical and sociodemographic data of suspected/confirmed cases received at MrI for the MPXV screening were also ***:The diagnostic performance of the commercial lightMix Modular MPXV qPCr assay with the in-house nonvariola orthopox/monkeypox generic real-time PCr assay for the screening of suspected MXPV cases was evaluated using standard methods with minor ***-demographic and clinical profiles of suspected and confirmed MPXV cases were also ***:The commercial lightMix Modular MPXV assay was able to detect MPXV with 100%sensitivity and specificity with non-variola orthopox/monkeypox generic rtPCr *** the period of study,from the total of 25 samples tested,only 2 were MPXV-positive(males).The most common symptoms of suspected MPXV cases were lesions or rashes(92%).Conclusions:With the continually increasing number of cases,access to MPXV testing should be made more widely *** commercial lightMix Modular MPXV(TIB Molbiol)qPCr assay offers comparable performance to the non-variola orthopox/monkeypox generic real time PCr assay for MPXV detection during the present outbreak.

关键词： Orthopoxvirus Monkeypox virus real-time PCr assays Patient screening

Effect of coke properties and its blending recipe on performances of carbon anode for aluminium electrolysis

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Journal of Central South university of Technology 2006年第6期13卷 647-652页

作者：刘凤琴刘业翔 Mannweiler u Perruchoud r School of Metallurgical Science and Engineering Central South University Mannweiler Consulting Hadlaubstrasse 71 CH-8006 Zuerich Switzerland r & D Carbon ltd. P.O. Box 362 CH-3960 Sierre Switzerland

The properties and blending recipe of petroleum cokes used to make high quality carbon anodes for aluminium electrolysis were studied. Three kinds of green cokes were selected for bench scale study to illustrate the effects of cokes properties and its blending recipe on anode performances. The results show that impurities derived mainly fi＇om cokes remarkably affect the CO2 reactivity and air reactivity of carbon anodes. Ca, Na and V can increase CO2 reactivity of calcined cokes but S has the contrary effect, and the cokes of high V level generally present high air reactivity. The anodes with good quality can be made by properly selecting and scientifically blending of cokes, some poor quality cokes can also be used to produce high quality anodes with a reasonable blending recipe. Na contaminated anodes have high CO2 reactivity and air reactivity, so the recycled anode butts should be well cleaned to reduce Na content before being introduced into anode production, which is especially important to the low S cokes.

关键词： petroleum coke blending recipe quality carbon anode, aluminium electrolysis

Magnetohydrodynamics with Implicit Plasma Simulation

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Communications in Computational Physics 2008年第8期4卷 433-456页

作者： J.u.Brackbill g.lapenta los Alamos National laboratory(retired) Los AlamosNM 87544USA Centrum voor Plasma-Astrofysica DepartementWiskundeKatholieke Universiteit LeuvenCelestijnenlaan 200B3001 LeuvenBelgium

We considerwhether implicit simulation techniques can be extended in time and space scales to magnetohydrodynamics without any change but the addition of *** goal is to couple fluid and kinetic models together for application to multi-scale *** a simulation framework,transition from one model to the other would occur not by a change of algorithm,but by a change of *** would greatly simplify the *** the way,we have found new ways to impose consistent boundary conditions for the field solver that result in charge and energy conservation,and establish that numerically-generated stochastic heating is the problem to *** an MHD-like problem,collisions are clearly necessary to reduce the stochastic *** collisions,the heating rate is *** collisions,the heating rate is significantly reduced.

关键词： Plasma simulation MHD particle-in-cell implicit methods

HIl testing of wheel slide protection systems:criteria for continuous updating and validation

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railway Engineering Science 2023年第2期31卷 108-121页

作者： l.Pugi g.Paolieri M.giorgetti l.Berzi r.Viviani l.Cabrucci l.Bocciolini Department of Industrial Engineering University of FlorenceVia di Santa Marta 350139 FlorenceItaly Italcertifer SPA(TEST CENTEr) Via Curzio Malaparte850145 FlorenceItaly

Assessment of railway wheel slide protection(WSP) systems involves the execution of complex experimental activities that are quite expensive and time-consuming, since they involve the physical reproduction of degraded adhesion conditions on a real railway line. WSP is devoted to regulating applied braking forces to avoid excessive wheel sliding in case of degraded adhesion conditions between wheel and rail. WSP must be also compliant to safety specifications related to assured braking performances and consumed air. Hardware in the loop(HIl) testing offers an affordable and sustainable way to accelerate these activities optimizing cost, duration and safety of experimental activities performed online. HIl test rigs are subjected to continuous updates, customization and natural ageing of their components. This work investigates the criteria that can be adopted to assure a continuous monitoring and validation of a real WSP test rig, the Italian test rig of Firenze Osmannoro.

关键词： Hardware in the loop(HIl) Wheel slide protection(WSP) Degraded adhesion conditions Train brake

Assessment of SArS-CoV-2 airborne infection transmission risk in public buses

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geoscience Frontiers 2022年第6期13卷 224-235页

作者： M.Bertone A.Mikszewski l.Stabile g.riccio g.Cortellessa F.r.d'Ambrosio V.Papa l.Morawska g.Buonanno Department of Civil and Mechanical Engineering University of Cassino and Southern LazioCassinoFRItaly CIuS Building Performance lab The City University of New YorkNew YorkNYUSA International laboratory for Air Quality and Health Queensland University of TechnologyBrisbaneQueenslandAustralia Department of Industrial Engineering University of Naples“Federico II”Italy Department of Industrial Engineering University of SalernoItaly Department of Motor Sciences and Wellness University of Naples“Parthenope”Italy

Public transport environments are thought to play a key role in the spread of SArS-CoV-2 ***,high crowding indexes(*** numbers of people relative to the vehicle size),inadequate clean air supply,and frequent extended exposure durations make transport environments potential hotspots for transmission of respiratory *** the COVID-19 pandemic,generic mitigation measures(*** distancing)have been applied without also considering the airborne transmission *** is due to the lack of quantified data about airborne contagion risk in transport *** this study,we apply a novel combination of close proximity and room-scale risk assessment approaches for people sharing public transport environments to predict their contagion risk due to SArS-CoV-2 respiratory *** particular,the individual infection risk of susceptible subjects and the transmissibility of SArS-CoV-2(expressed through the reproduction number)are evaluated for two types of buses,differing in terms of exposure time and crowding index:urban and long-distance *** risk and reproduction number are calculated for different scenarios as a function of the ventilation rates(both measured and estimated according to standards),crowding indexes,and travel *** results show that for urban buses,the close proximity contribution significantly affects the maximum occupancy to maintain a reproductive number ofrticular,full occupancy of the bus would be permitted only for an infected subject breathing,whereas for an infected subject speaking,masking would be *** long-distance buses,full occupancy of the bus can be maintained only if specific mitigation solutions are simultaneously *** example,for an infected person speaking for 1 h,appropriate filtration of the recirculated air and simultaneous use of FFP2 masks would permit full occupancy of the bus for a period of almost 8 ***,a high percentage of immunized persons(>

关键词： SArS-CoV-2 Airborne transmission Bus Transport microenvironment Maximum occupancy Air exchange rate

Importance of heavy quark longitudinal structure function measurements at future circular collider energies

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Chinese Physics C 2021年第6期45卷 56-65页

作者： g.r.Boroun Physics Department Razi UniversityKermanshah 67149Ira

In this article,we consider the ratio of structure functions for heavy quark pair production at low values *** importance of this ratio for charm and beauty pair production is examined according to the Hadron Electron ring Accelerator(HErA)*** behavior of these ratios is considered due to the hard pomeron behavior of the gluon distribution *** results are in good agreement with the HErA *** this data to the range of new energies underscores the importance of these measurements for heavy *** ratio of charm and beauty structure functions at the proposed large Hadron electron Collider(lHeC)is considered as a function of invariant center-of-mass *** top pair production this ratio is extracted with known kinematics of the lHeC and Future Circular Collider electron-hadron(FCC-eh)*** of the results obtained for the ratio of top structure functions in lHeC and FCC-eh are proportional to the specified inelasticity range.

关键词： future circular colliders heavy quarks longitudinal structure function

Transient Non-Thermal Mobility of CO for CO-NO Catalytic reaction on Square lattice： Monte Carlo Simulation

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Chinese Physics letters 2008年第4期25卷 1482-1485页

作者： M. Khalid A. u. Qaisrani M. g. ullah Department of Physics Gomal University Dera Ismail Khan Pakistan

We study a model based on precursor mechanism for CO-NO catalytic reaction on square lattice with Monte Carlo simulation. The precursor mechanism clearly demonstrates its impact on the phase diagram. The steady reactive state （SrS） gets established. The width of reactive region increases by increasing the range of precursor mobility. When the precursor mobility is increased to third-nearest neighbourhood, the second-order transition disappears.

关键词： ElEY-rIDEAl PrOCESS PHASE-DIAgrAM HETErOgENEOuS CATAlYSIS PrECurSOr MECHANISM HEXAgONAl SurFACES CuBIC STruCTurE SuBSurFACE MODEl CHEMISOrPTION TrANSITIONS

Viscoelastic and Thermal Properties of Polyurethane Foams Obtained from renewable and recyclable Components

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Journal of renewable Materials 2018年第7期6卷 755-763页

作者： S.gaidukovs g.gaidukova A.Ivdre u.Cabulis Faculty of Material Science and Applied Chemistry Institute of Polymer MaterialsRiga Technical University3/7 Paula Valdena St.LV 1048RigaLatvia Faculty of Material Science and Applied Chemistry Institute of Applied ChemistryRiga Technical University3/7 Paula Valdena St.LV 1048RigaLatvia latvian State Institute of Wood Chemistry 27 Dzerbenes St.LV-1006RigaLatvia

This article deals with the study of the viscoelastic and thermal properties of polyurethane (Pu) rigid foamsfrom biobased and recycled components. rapeseed oil (rO) and recycled poly(ethylene terephthalate)(PET) were used to synthesize Pu polyols. Addition of adipic acid (ADA) to polyol resulted in improvedthermal and viscoelastic properties of foam materials. ADA content was varied from 1 to 6 wt%. results ofthe dynamic mechanical spectra indicate an increase of the storage modulus E′ and the loss modulus E″ inthe whole temperature range for specimens with higher loading of ADA. In addition, damping factor shiftedto higher temperatures, but damping intensity remained almost unaffected by the compositions. Scanningelectron microscopy of the foams’ cross sections testified that the average cells’ size of 110 mm was unaffectedby the ADA content in polyol.

关键词： Polyurethane rigid foam rapeseed oil recycled poly(ethylene terephthalate) viscoelastic properties thermalproperties

Acoustic Measurements for Determination of the Materials Damping using A Sound Source localisation System

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Acta Metallurgica Sinica(English letters) 2013年第2期26卷 113-121页

作者： J. gken J. Swiostek H. Hurdelbrink u. Keil Faculty of Maritime Studies University of Applied Sciences Emden/Leer Bergmannstr. 36 26789 LeerGermany Stalomax TM Company of High-Precision Mechanics ul. Parkingowa 45 37450 Stalowa WolaPoland

Noise measurements are especially a problem when the object under investigation is largely dimensioned and can only be measured from the distance. To obtain information about the location of noise generation, a measurement technique which makes sound visible in order to introduce further specific technical measures is advantageous. The question is if the time dependence of the signal got from such a non touching and non destructive acoustic method has the potential to calculate the materials damping from. using a small sound source localization system （Microflown^TM probe）, specimens of magnesium alloys with different grain sizes obtained by hydrostatic extrusion were investigated. It has been demonstrated that the fine grained microstructure led to a lower damping and its dependence on the strain was reduced. In this context, acoustic measurements by a sound source localisation system which makes materials characterization possible could be used as a quality tool to detect changes in highly stressed components. This approach allows to promote a selective substitution of conventional materials by more innovative ones. The offshore sector is considered to be a field of application： Wind turbines produce noise emission which stems mainly from turbulences at the tips of the rotor blades and vibrations of components inside the nacelle （e.9. gearbox, generator, ...）. If the vibration amplitudes are too high, microcracks of components can lead to failure over the long term. The monitoring of microstructural changes using a larger type of a sound source localisation system is considered as an innovative technical approach with respect to maintenance activities.

关键词： Magnesium Noise measurements MicroflownTM Damping