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Journal of magnesium and Alloys 2022年第7期10卷 1915-1929页

作者： S.Fatimah m.P.Kamil d.i.Han w.Al-Zoubi Y.G.Ko materials Electrochemistry Group School of Materials Science and EngineeringYeungnam UniversityGyeongsan 38541Republic of Korea

Plasma electrolytic oxidation(PEO)is a promising surface treatment to generate adherent and thick anti-corrosive coating on light-weight metals(Al,mg,Ti,etc.)using an eco-friendly alkaline *** energy plasma,however,inevitably generates porous structures that limit their practical *** present study proposes a straight-forward simple method by utilizing sub-zero electrolyte(268 K)to alter the plasma characteristics during formation of the protective coating on AZ31 mg alloy via PEO with a comparison to the electrolyte at room temperature(298 K).in refrigerated electrolyte,the formation of micro-defects is suppressed relatively at the expense of low coating growth,which is measured to be twice lower than that at 298 K due to the temperature-dependent soft plasma discharges contributing to the development of the present *** a consequence,corrosion resistance of the sample processed at 268 K is superior to that of 298K,implying that the effect of coating thickness is less dominant than that of *** phenomenon is interpreted in relation to the ionic movement and oxide solidification controlled by soft plasma discharges arising from the temperature gradient between electrolyte and surface of the substrate during PEO.

关键词： AZ31 mg alloy Plasma electrolytic oxidation Sub-zero electrolyte Anti-corrosive coating Corrosion

miniSCidOm: a scintillator-based tomograph for volumetric dose reconstruction of single laser-driven proton bunches

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High Power Laser Science and Engineering 2024年第2期12卷 41-50页

作者： A.Corvino m.Reimold E.Beyreuther F.-E.Brack F.Kroll J.Pawelke J.d.Schilz m.Schneider U.Schramm m.E.P.Umlandt K.Zeil T.Ziegler J.metzkes-Ng Helmholtz-Zentrum dresden–Rossendorf DresdenGermany Technische Universität dresden DresdenGermany OncoRay–National Center for Radiation Research in Oncology Faculty of Medicine and University Hospital Carl Gustav CarusTUD Dresden University of TechnologyHelmholtz-Zentrum Dresden–RossendorfDresdenGermany Current affiliation:institut Curie UniversitéPSLCNRS UMR3347OrsayFrance Current affiliation:Universitätsklinikum Freiburg FreiburgGermany

Laser plasma accelerators(LPAs)enable the generation of intense and short proton bunches on a micrometre scale,thus offering new experimental capabilities to research fields such as ultra-high dose rate radiobiology or material *** spectrally broadband,laser-accelerated proton bunches allow for tailored volumetric dose deposition in a sample via single bunches to excite or probe specific sample *** rising number of such experiments indicates a need for diagnostics providing spatially resolved characterization of dose distributions with volumes of approximately 1 cm^(3) for single proton bunches to allow for fast online *** we present the scintillator-based miniSCidOm detector for online single-bunch tomographic reconstruction of dose distributions in volumes of up to approximately 1 cm^(3).The detector achieves a spatial resolution below 500μm and a sensitivity of 100 *** detector performance is tested at a proton therapy cyclotron and an LPA proton *** experiments’primary focus is the characterization of the scintillator’s ionization quenching behaviour.

关键词： beam monitoring detectors laser-driven proton beams scintillator-based diagnostics ultra-high dose rate

Acceptance of COVid-19 vaccine and its related determinants in Nigeria:An online survey

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world Journal of Virology 2024年第4期13卷 89-110页

作者： Eyiuche d Ezigbo Seyi S Enitan Esther N Adejumo Abiodun E durosinmi Richard Y Akele michael O dada Grace E itodo Abah m idoko Okeoghene m Edafetanure-ibeh Edwin N Okafor Adedeji A Abdulsalam Oyekan i Oyedoyin Polit U Yelpoji Ogunwola O Opeyemi Ogbuji S Nmesomachi Adesola O Oyekale Chisom B Onyeji Haemostasis and Thrombosis Unit Department of Medical Laboratory SciencesUniversity of NigeriaEnugu CampusEnuguEN 400241Nigeria department of medical Laboratory Science School of Public and Allied HealthBabcock UniversityIlishan-RemoOG 121109Nigeria department of medical Laboratory Science State HospitalIjebu-OdeOG 120221Nigeria department of Biomedical Science School of Applied ScienceUniversity of BrightonBrightonES BN24ATUnited Kingdom department of microbiology Federal Teaching Hospital LokojaLokojaKO 260006Nigeria department of Hematology and Blood Group Serology Federal College of Veterinary and Medical Laboratory TechnologyVomPL 930101Nigeria department of Environmental and Occupational Health Texas A and M University School of Public HealthGarlandTX 75049United States division of Chemical Pathology Department of Medical Laboratory SciencesUniversity of NigeriaEnugu CampusEnuguEN 400102Nigeria School of molecular Bioscience Sciences College of MedicalVeterinary and Life SciencesUniversity of GlasgowGlasgowSCO G128QQUnited Kingdom department of medical Laboratory Science State Hospital Ijebu-OdeIjebu-OdeOG 360101Nigeria department of medical Laboratory Science Faculty of Health Sciences and TechnologyUniversity of JosJosPL 930103Nigeria department of medical Laboratory Science Bola Tinubu Health and Diagnostic CenterLagosLA 100102Nigeria department of Pathology 68 Nigerian Army Reference HospitalYabaLA 1211001Nigeria department of medical Laboratory Science Ladoke Akintola University of TechnologyOgbomosoOS 2111105Nigeria

BACKGROUNd Vaccine hesitancy is a major challenge in the fight against the coronavirus disease 2019(COVid-19)*** the sociodemographic factors associated with vaccine acceptance among Nigerians is crucial for improving vaccine *** To assess the acceptance rate of COVid-19 vaccine and its related determinants among *** An online cross-sectional survey(observational study)was conducted between February 2021 and may 2021,using a questionnaire hosted on *** invitation to take part in the poll was sent out to participants through social networking platforms.A logistic regression was used to determine which sociodemographic factors were associated with vaccine acceptance *** A total of 1800 persons responded to the survey,a larger proportion of whom were males(53.9%)and within the age group of 21-30 years(29.4%)and earned an average income of less than$500 per month(43.3%).Only 0.56%of participants had a high perceived risk of COVid-19 infection,while only 1.11%had a perceived risk of dying from *** perception rate of the COVid-19 vaccine among participants was 51.1%,while the acceptance rate was 63.9%.There was no significant association between the COVid-19 vaccine acceptance rate and related determinants assessed,particularly age(χ²=3.049,P=0.550),sex(χ²=0.102,P=0.749),average income(χ²=3.802,P=0.875),and religion(χ²=2.819,P=0.420).Participants with chronic conditions demonstrated a higher acceptance rate compared to the general *** despite the positive perception observed and substantial vaccine acceptance rate among the study participants,more public health interventions are still needed to enhance vaccine acceptability in Nigeria.

关键词： Acceptance COVid-19 determinants Hesitancy Nigerians Online survey Vaccine

design of a large-scale model for wind tunnel test of a multiadaptive flap concept

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Chinese Journal of Aeronautics 2024年第2期37卷 58-80页

作者： mürüvvet Sinem SiCim dEmiRCi Rosario PECORA metin Orhan KAYA Aeronautical Engineering department Istanbul Technical UniversityIstanbulTurkey industrial Engineering department University of Naples Federico IINapoliItaly

The design and application of morphing systems are ongoing issues compelling the aviation *** Clean Sky-program represents the most significant aeronautical research ever launched in Europe on advanced technologies for greening next-generation *** primary purpose of the program is to develop new concepts aimed at decreasing the effects of aviation on the environment,increasing reliability,and promoting eco-friendly *** ambitions are pursued through research on enabling technologies fostering noise and gas emissions reduction,mainly by improving aircraft aerodynamic *** the Clean Sky framework,a multimodal morphing flap device was designed based on tight industrial requirements and tailored for large civil aircraft *** flap is deployed in one unique setting,and its cross section is morphed differently in take-off and landing to get the necessary extra lift for the specific flight ***,during the cruise,the tip of the flap is deflected for load control and induced drag *** manufacturing the first flap prototype,a high-speed(ma=0.3),large-scale test campaign(geometric scale factor 1:3)was deemed necessary to validate the performance improvements brought by this novel system at the aircraft *** the other hand,the geometrical scaling of the flap prototype was considered impracticable due to the unscalability of the embedded mechanisms and actuators for shape ***,a new architecture was conceived for the flap model to comply with the scaled dimensions requirements,withstand the relevant loads expected during the wind tunnel tests and emulate the shape transition capabilities of the true-scale *** strategies were developed to effectively morph the model during wind tunnel tests while ensuring the robustness of each morphed configuration and maintaining adequate stiffness levels to prevent undesirable deviations from the intended aerodynamic ***,

关键词： morphing structures Smart aircraft morphing flap Adaptive systems Finger-like ribs wind tunnel tests Large-scale morphing archi-tectures Variable camber airfoil

Handgrip strength in type 2 diabetics and nondiabetics:A comparative cross-sectional study among adults in rural mysore

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Journal of integrative Nursing 2024年第3期6卷 150-154页

作者： deepak ANiL m.RAKESH Shabeena AKBAR Vijaylakshmi Rao VAdAGA d.Sunil KUmAR department of Community medicine JSS Medical CollegeJSS Academy of Higher Education and ResearchMysoreKarnatakaIndia

Objectives:The objective of this study is to assess the handgrip strength(HGS)in patients with type 2 diabetes,compare it with nondiabetes age-matched individuals,and assess the correlation between diabetic status and HGS among diabetic *** and methods:A community-based cross-sectional study was conducted in rural mysore,india,for 4 ***-eight clinically diagnosed type 2 diabetics and 58 nondiabetics participated in the *** handheld dynamometer was used to test the HGS of all subjects in their dominant *** t-test was used to analyze the differences in HGS between patients with and without ***:The mean dynamometer reading among diabetics was 19.08±7.51,whereas that in nondiabetics was 27.474±*** was a significant difference in HGSs between diabetics and nondiabetics(Pion:decreased muscle strength and quality in the upper extremities are associated with type 2 diabetes and can lead to functional and physical *** patients’HGS should be evaluated promptly to identify any disabilities and plan for appropriate therapy.

关键词： diabetics dynamometer handgrip muscle strength

The extended cubic B-spline algorithm for a modified regularized long wave equation

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Chinese Physics B 2013年第4期22卷 75-80页

作者： i.dag d.irk m.Sari Faculty of Science and Arts Department of Mathematics and Computer Sciences Eskis ehir Osmangazi niversitesi Eskis ehir Turkey Faculty of Science and Arts Department of Mathematics Pamukkale niversitesi Denizli Turkey

A collocation method based on an extended cubic B-spline function is introduced for the numerical solution of the modified regularized long wave equation. The accuracy of the method is illustrated by studying the single solitary wave propagation and the interaction of two solitary waves of the modified regularized long wave equation.

关键词： collocation methods solitary waves

Effect of Al addition and heat treatment on the microstructures and corrosion resistance of mg-Cu alloys

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Journal of materials Science & Technology 2022年第3期98卷 219-232页

作者： X.w.wang w.wang w.Chen d.m.Chen Shi-changxu innovation Center for Advanced materials Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China College of material Science and Engineering University of Science and Technology of ChinaShenyang 110016China

The effects of Al content and annealing condition on the microstructures and corrosion performances of mg-3 wt.%Cu-xAl(x=0,4 wt.%,8 wt.%)alloys were *** mg-3 wt.%Cu alloy contains mg_(2)Cu phase,but Al-bearing alloys contain mgAlCu and mg_(17)Al_(12) *** mg_(2)Cu and mgAlCu phases exhibit much higher Volta potential compared to mg_(17)Al_(12) and α-mg,and their volume fractions are related to Al content of alloys and annealing *** weight loss measurement and electrochemical tests are conducted to explore the corrosion performances of *** close relationship between weight loss rate of alloys and volume fraction of Cu-bearing phases indicates that the corrosion performances of alloys can be controlled by adjusting Al content of alloys and annealing conditions.

关键词： magnesium intermetallics weight loss EiS(electrochemical impedance spectroscopy)

A multi-shot target wheel assembly for high-repetition-rate, laser-driven proton acceleration

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High Power Laser Science and Engineering 2024年第02期 91-98页

作者： J.Pe?as A.Bembibre d.Cortina-Gil L.martín A.Reija C.Ruiz m.Seimetz A.Alejo J.Benlliure instituto Galego de Física de Altas Enerxías Universidade de Santiago de Compostela Laboratorio Láser de Aceleración y Aplicaciones RIAIDT Universidade de Santiago de Compostela instituto Universitario de Física Fundamental y matemáticas y dpto.de didáctica de la matemática y de las Ciencias Experimentales Universidad de Salamanca instituto de instrumentación para imagen molecular (i3m) CSIC-Universitat Politècnica de València

A multi-shot target assembly and automatic alignment procedure for laser–plasma proton acceleration at high repetition rate are introduced. The assembly is based on a multi-target rotating wheel capable of hosting more than 5000 targets,mounted on a 3d motorized stage to allow rapid replenishment and alignment of the target material between laser irradiations. The automatic alignment procedure consists of a detailed mapping of the impact positions at the target surface prior to the irradiation that ensures stable operation of the target, which alongside the purpose-built design of the target wheel, enables operation at rates up to 10 Hz. Stable and continuous laser-driven proton acceleration at 10 Hz is demonstrated, with observed cut-off energy stability about 15%.

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A multi-shot target wheel assembly for high-repetition-rate, laser-driven proton acceleration

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High Power Laser Science and Engineering 2024年第2期12卷 87-94页

作者： J.Penas A.Bembibre d.Cortina-Gil L.martin A.Reija C.Ruiz m.Seimetz A.Alejo J.Benlliure instituto Galego de Fisica de Altas Enerxias Universidade de Santiago de CompostelaSantiago de CompostelaSpain Laboratorio Laser de Aceleracion y Aplicaciones RIAIDTUniversidade de Santiago de CompostelaSantiago de CompostelaSpain instituto Universitario de Física Fundamental y matematicas y dpto.de didactica de la matematica y de las Ciencias Experimentales Universidad de SalamancaSalamancaSpain instituto de instrumentación para imagen molecular(i3m) CSIC-Universitat Politecnica de ValenciaValenciaSpain

A multi-shot target assembly and automatic alignment procedure for laser–plasma proton acceleration at high repetition rate are *** assembly is based on a multi-target rotating wheel capable of hosting more than 5000 targets,mounted on a 3d motorized stage to allow rapid replenishment and alignment of the target material between laser *** automatic alignment procedure consists of a detailed mapping of the impact positions at the target surface prior to the irradiation that ensures stable operation of the target,which alongside the purpose-built design of the target wheel,enables operation at rates up to 10 *** and continuous laser-driven proton acceleration at 10 Hz is demonstrated,with observed cut-off energy stability about 15%.

关键词： high repetition rate laser-plasma acceleration multi-shot operation proton source target assembly

Core needle biopsy for thyroid nodules assessment-a new horizon?

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world Journal of Clinical Oncology 2024年第5期15卷 580-586页

作者： david d dolidze Serghei Covantsev Grigorii m Chechenin Natalia V Pichugina Anastasia V Bedina Anna Bumbu department of Clinical Research and development Botkin HospitalMoscow 125284Russia department of Surgery Russian Medical Academy of Continuous Professional EducationMoscow 125445Russia Emergency Surgery No.76 Botkin HospitalMoscow 125284Russia department of Surgery Botkin HospitalMoscow 125284Russia department of medical Ultrasonography Botkin HospitalMoscow 125284Russia medicine Moscow State Medical University I.M.SechenovMoscow 119048Russia department of Oncology Botkin HospitalMoscow 125284Russia

Ultrasound-guided fine-needle aspiration is the standard for evaluating thyroid nodules with a high safety profile and a relatively low number of non-diagnostic cytological ***,this diagnostic method traditionally has its weak *** diagnostic categories such as BethesdaⅠ,ⅢandⅣare not reliable for thyroid carcinoma risk *** advancements in a core needle biopsy made it possible to use this tool as a new method for thyroid nodules *** main feature of this method is the use of thin needles(18-21G)and guns with an automatic trigger *** histological material collected with the use of a core needle biopsy is usually superior to ***,the core needle biopsy can be used as a complementary technique to a standard fine needle aspiration in difficult and dubious cases of thyroid neoplasia with uncertain malignant potential.

关键词： Core-needle biopsy Thyroid Follicular tumor Fine-needle aspiration Thyroid cancer