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computer Modeling in Engineering & sciences 2021年第2期126卷 599-616页

作者： T.k.Sreelakshmi Abraham Annamma A.S.chethan M.krishna Murthy c.S.k.Raju Department of Mathematics BMS Institute of Technology and ManagementBengaluru560064India Department of Mathematics School of Applied SciencesREVA UniversityBengaluru560064India Department of Mathematics GITAM School of ScienceGITAM Deemed to be UniversityBengaluru562163India

The current article discusses the heat transfer characteristics of ferromagnetic liquid over an elastic surface with the thermal radiation and non-Fourier heat *** most of the existing studies,the heat flux is considered as constant,but whereas we incorporated the non-Fourier flux to get the exact performance of the ***,we excluded the PWT and PHF cases to control the boundary layer of the *** governing equations related to our contemplate are changed into non-linear ordinary differential equations(ODE’s)by utilizing appropriate similarity changes,which are at the point enlightened by Runge–kutta based shooting *** equations are broken down concerning boundary conditions and to be explained prescribed wall temperature(PWT)and prescribed heat flux(PHF)*** impacts of diverse non-dimensional physical parameters on velocity and temperature profiles are laid out ***,the assortment of skin friction and local Nusselt number for both PWT and PHF cases for various assessments of non-dimensional parameters have been sorted *** the wrap-up of the examination,we suspect that the friction factor coefficient is higher in the PWT case compared to the PHF *** result helps to conclude that the flux conditions are useful for cooling applications.

关键词： Ferromagnetic liquid nonlinear thermal buoyancy non-Fourier heat flux radiated elastic surface

Mass spectra and Regge trajectories of Λ_c^+,∑_c^0,Ξ_c^0 and Ω_c^0 baryons

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chinese Physics c 2016年第12期40卷 10-21页

作者： Zalak Shah kaushal Thakkar Ajay kumar Rai P. c. Vinodkumar Department of applied Physics Sardar Vallabhbhai National Institute of Technology Surat Gujarat 395007 India Department of applied sciences &: Humanities GIDC Degree Engineering college Abrama Navsari 396406 India Department of physics Sardar Patel University V.V. Nagar Anand 388120 India

We calculate the mass spectra of the singly charmed baryons （∧＋ c, ∑0 c,[I]0c and Ω0 c） using the hypercentral constituent quark model （hcQM）. The hyper color coulomb plus linear potential is used to calculate the masses ofpositive （up to JP = 7＋/2 ）9 and negative （up to JP = 9-/2）parity excited states. The spin-spin, spin-orbital and tensorinteraction terms are-also incorporated for mass spectra. We have compared our results with other theoretical and lattice QcD predictions for each baryon. Moreover, the known experimental results are also reasonably close to our predicted masses. By using the radial and orbital excitation, we construct Regge trajectories for the baryons in the （n,M2） plane and find their slopes and intercepts. Other properties of these baryons, like magnetic moments, radiative transitions and radiative decay widths, are also calculated successfully.

关键词： baryons potential model Regge trajectories

Recent progress in single-molecule fluorescence technology in nanocatalysis

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Nano Research 2022年第12期15卷 10316-10327页

作者： Jing cao Dezheng Zhang Weilin Xu State key Laboratory of Electroanalytical chemistry and Jilin Province key Laboratory of Low carbon chemical Power Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022China university of Science and technology of china Hefei230026China

Nanoparticles(NPs)play a vital role in the energy catalysis process,so understanding the heterogeneous catalytic properties of nanocatalysts is of great significance for rationally guiding the design of ***,the traditional method obtains the average information based on the whole and cannot study the catalytic activity of a single *** is critical to investigate the catalytic activity of individual nanoparticles using in situ *** review summarizes some of ***'s recent accomplishments in studying the catalytic behavior of nanoparticles at the single-particle level using single-molecule fluorescence microscopy(SMFM).These achievements include revealing the effect of size,shape,and surface atoms of Pd nanoparticles on catalytic.k.netics and dynamics as well as obtaining the activation energy of single Au nanoparticles for catalytic reactions by single-molecule *** is the first time to study the kinetics and dynamics of single-atom Pt ***,the method was extended to study the Pt deactivation process for hydrogen oxidation reactions as well as the catalytic.k.netics of two-electron oxygen reduction reactions of individual Fe3O4 nanoparticles in ***,single-molecule super-resolution techniques were used to observe the evolution of the activity of single Sb doped TiO2 nanorod *** studies are of guiding significance for in-depth understanding and realization of rational design of optimal catalysts.

关键词： single-molecule fluorescence microscopy nanocatalysis kinetics and dynamics activation energy electrocatalysis super-resolution imaging

Fine-tune chiroptical activity in discrete chiral Au nanorods

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Nano Research 2022年第7期15卷 6574-6581页

作者： Guangchao Zheng Sulin Jiao Wei Zhang Shenli Wang Qinghua Zhang Lin Gu Weixiang Ye Junjun Li Xiaochen Ren Zhicheng Zhang kwok-yin Wong School of Physics and Microelectronics Zhengzhou UniversityZhengzhou 450001China State key Laboratory of chemical Biology and Drug Discovery Department of Applied Biology and Chemical TechnologyThe Hong Kong Polytechnic UniversityKowloonHong KongChina Institute of applied Physics and computational Mathematics Beijing 100088China School of Food Science and Engineering Henan University of TechnologyZhengzhou 450001China Beijing National Laboratory for condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China Department of applied Physics School of ScienceHainan UniversityHaikou 570228China Tianjin key Laboratory of Molecular Optoelectronic sciences Department of ChemistrySchool of ScienceTianjin University&Collaborative Innovation Center of Chemical Science and EngineeringTianjin 300072China

Accurate researches on the surface plasmon resonance(SPR)-based applications of chiral plasmonic metal nanoparticles(NPs)still remain a great ***,a series of chiral plasmonic metal NPs,e.g.,chiral Au nanorods(c-Au NRs),c-Au@Ag core–shell,and c-Au@TiO_(2) core–shell NRs,with different chiroptical activities have been *** circular dichroism(PcD)bands of c-Au NRs can be precisely tailored by tuning the longitudinal SPR(LSPR)and amount of Au NRs as ***,a shift of PcD bands within ultraviolet–visible–near infrared ray(UV–vis–NIR)region can also be achieved through the functionalization of a shell of another metal or ***,chirality transfer from c-Au core to Ag shell leads to new PcD bands at the near-UV *** tuning of PcD bands and chirality transfer are confirmed by our developed theoretical *** chiral Au NRs-based chiral plasmonic nanomaterials with tunable chiroptical activities will be helpful to understand the structure-direct PcD and to extend circularly polarized-based applications.

关键词： chiral Au nanorods(c-Au NRs) surface plasmon resonance optical activity chirality transfer

Thermopressure coupling Effect Mimicking Natural Graphite Formation to Enhance the Storage k-Ion Performance of carbonaceous Heterostructures

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Research 2023年第4期2023卷 379-389页

作者： Tianyi Ji Xiaoxu Liu Hui Wang Yunli Shi Yang Li Man Zhang Junqi Li Hui Liu Ze Xiang Shen Shaanxi key Laboratory of Green Preparation and Functionalization for Inorganic Materials School of Material Science and EngineeringShaanxi University of Science and TechnologyXi’an 710021ShaanxiChina Division of Physics and applied Physics School of Physical and Mathematical SciencesNanyang Technological UniversitySingapore 637371Singapore

Borrowing from natural mechanisms for material design can lead to functional mimicry and *** by graphite formation,a thermopressure coupling strategy under micropressure(<400 Pa)is applied to prepare carbon anodes.A t... 详细信息

Borrowing from natural mechanisms for material design can lead to functional mimicry and *** by graphite formation,a thermopressure coupling strategy under micropressure(applied to prepare carbon anodes.A thermopressure response is discovered based on the cellulose ***,homologous graphene quantum dot/hard carbon(GQD/Hc)heterostructures are *** 181.4 Pa and 1,200°c,the product shows a capacity of 310 mAh g^(−1),while the capacity of the direct carbonization product is only 120 mAh g^(−1).Prominently,the GQD/Hc heterostructure displays marked mechanical strength and *** experimental and theoretical results illustrate the ion and electron transfer,coordination environment,and electronic states in the GQD/Hc heterostructure and elaborate on the origin of the enhanced *** thermopressure coupling under micropressure mimics graphite formation,but the heterostructure has better properties than traditional carbon ***,micropressure injects new vitality into material research.

关键词： coupling coupling carbon

comprehensive characterization of indoor airborne bacterial profile

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Journal of Environmental sciences 2009年第8期21卷 1148-1152页

作者： P. L. chan P. H. F. Yu Y. W. cheng c. Y. chan P. k. Wong Department of Biology The Chinese University of Hong Kong Department of applied Biology and chemical technology The Hong Kong Polytechnic University Department of Microbiology The Chinese University of Hong Kong

This is the first detailed characterization of the airborne bacterial profiles in indoor environments. Two restaurants were selected for this study. Fifteen genera of bacteria were isolated from each restaurant and identified by three different bacterial identification systems including MIDI, Biolog and Riboprinter. The dominant bacteria of both restaurants were Gram-positive bacteria in which Micrococcus and Bacillus species were the most abundant. Most bacteria identified were representative species of skin and respiratory tract of human, and soil. Although the bacterial levels in these two restaurants were below the limit of the Hong kong Indoor Air Quality Objective （HkIAQO） Level 1 standard （i.e., 〈 500 cfu/m^3）, the majority of these bacteria were opportunistic pathogens. These results suggested that the identity of airborne bacteria should also be included in the IAQ to ensure there is a safety guideline for the public.

关键词： airborne bacterial profile bacterial identification indoor air quality

The Influence of chitin Nanocrystals on Structural Evolution of Ultra-high Molecular Weight Polyethylene/chitin Nanocrystal Fibers in Hot-drawing Process

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chinese Journal of Polymer Science 2016年第11期34卷 1373-1385页

作者： Min-fang An Hao-jun Xu You Lv Li Zhang Qun Gu Feng Tian 王宗宝 Ningbo key Laboratory of Specialty Polymers Faculty of Materials Science and Chemical Engineering Ningbo University Ningbo 315211 China college of Material Engineering Ningbo University of Technology Ningbo 3151006 China Shanghai Institute of applied Physics Chinese Academy of Sciences Shanghai 201204 China

Ultra-high molecular weight polyethylene（UHMWPE）/chitin nanocrystal（cNc） fibers were prepared. compared with the pure UHMWPE fibers, the ultimate tensile strength and Young＇s modulus of UHMWPE/cNc fibers are improved by 15.7% and 49.6%, respectively, with the addition of chitin nanocrystals（cNcs） of 1 wt%. The melting temperature（Tm） of UHMWPE/cNc fibers was higher than that of pure UHMWPE fibers. Pure UHMWPE fibers and UHMWPE/cNc fibers were characterized with respect to crystallinity, orientation and kebab structure by wide-angle X-ray diffraction（WAXD）, small-angle X-ray scattering（SAXS） and scanning electron microscopy（SEM）. It is found that the cNcs act as the shish structure in UHMWPE/cNc fibers and the kebab crystals are grown around the cNcs. There was almost no difference between pure UHMWPE fibers and UHMWPE/cNc fibers in orientation. But the degree of crystallinity of various stages of UHMWPE/cNc fibers was respectively higher than the corresponding stage of pure UHMWPE fibers. Moreover, the addition of 1 wt% cNcs improved the thickness of kebab crystals and accelerated the transformation of kebab to shish.

关键词： UHMWPE shish crystallinity modulus SAXS WAXD drawing melting chitin ultimate

Stoichiometric evolutions of PH3 under high pressure:implication for high-Tc superconducting hydrides

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National Science Review 2019年第3期6卷 524-531页

作者： Ye Yuan Yinwei Li Guoyong Fang Guangtao Liu cuiying Pei Xin Li Haiyan Zheng ke Yang Lin Wang center for High Pressure Science and technology Advanced Research School of Physics and Electronic Engineering Jiangsu Normal University key Laboratory of carbon Materials of Zhejiang Province College of Chemistry and Materials Engineering Wenzhou University Department of Physics Fudan University Shanghai Institute of applied Physics Chinese Academy of Sciences

The superconductivity of hydrides under high pressure has attracted a great deal of attention since the recent observation of the superconducting transition at 203 k in strongly compressed *** has been realized that the stoichiometry of hydrides might change under high pressure,which is crucial in understanding the superconducting *** this study,PH3was studied to understand its superconducting transition and stoichiometry under high pressure using Raman,IR and X-ray diffraction measurements,as well as theoretical ***3is stable below 11.7 GPa and then it starts to dehydrogenate through two dimerization processes at room temperature and pressures up to 25 *** resulting phosphorus hydrides,P2H4and P4H6,were verified experimentally and can be recovered to ambient *** further compression above 35 GPa,the P4H6directly decomposed into elemental *** temperature can greatly hinder polymerization/decomposition under high pressure and retains P4H6up to at least 205 *** superconductivity transition temperature of P4H6is predicted to be 67 k at 200 GPa,which agrees with the reported result,suggesting that it might be responsible for superconductivity at higher *** results clearly show that P2H4and P4H6are the only stable P–H compounds between PH3and elemental phosphorus,which is helpful for shedding light on the superconducting mechanism.

关键词： high pressure hydrides superconductivity stoichiometric evolution

Arabidopsis thaliana REcEPTOR DEAD kINASE1 Functions as a Positive Regulator in Plant Responses to ABA

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Molecular Plant 2017年第2期10卷 223-243页

作者： Dhinesh kumar Ritesh kumar Dongwon Baek Tae-kyung Hyun Woo Sik chung Dae-Jin Yun Jae-Yean kim Division of applied Life sciences Plant Molecular Biology and Biotechnology Research Center Gyeongsang National University Jinju 660-701 Korea Department of Industrial Plant Science and technology Conege of Agricultural Life and Environmental Sciences Chungbuk National University Cheongju 28644Korea These authors contributed equally to this article.

Abscisic acid （ABA） is a major phytohormone involved in important stress-related and developmental plant processes. Membrane-delimited ABA signal transduction plays an important role in early ABA signaling, but the molecular mechanisms connecting core signaling components to the plasma membrane remain un- clear. Plants have evolved a large number of receptor-like kinases （RLks） to modulate diverse biological processes by perceiving extracellular stimuli and activating downstream signaling responses. In this study, a putative leucine-rich repeat-RLk gene named REcEPTOR DEAD kINASE1 （AtRDk1） was identified and characterized in Arabidopsis thaliana. RDk1 promoter-GUS analysis revealed that RDk1 is expressed ubiq- uitously in the various tissues in Arabidopsis, and its expression is mainly induced by ABA. In the presence of ABA, RDkl-deficient rdkl-1 and rdkl-2 lines showed significant resistance in cotyledon greening and root growth, whereas RDkl-overexpressing lines showed enhanced sensitivity. consistently, the expres- sion of ABA-responsive genes was significantly downregulated in rdkl mutant seedlings, which were also hypersensitive to drought stress with increased water loss. Interestingly, RDk1 was found to be an atypical kinase localized to the plasma membrane and did not require its kinase activity during ABA-mediated inhi- bition of seedling development. Accordingly, RDk1 interacted in the plasma membrane with type 2c protein phosphatase ABSclSIc AcID INSENSITIVE1 （ABI1）; this interaction was further enhanced by exogenous application of ABA, suggesting that RDkl-mediated recruitment of ABI1 onto the plasma membrane is important for ABA signaling. Taken together, these results reveal an important role for RDk1 in plant responses to abiotic stress conditions in an ABA-dependent manner.

关键词： ABA abiotic stress Arabidopsis atypical kinases protein phosphatases receptor-like kinases

canadian Agility and Movement Skill Assessment(cAMSA):Validity, objectivity, and reliability evidence for children 8–12 years of age

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Journal of Sport and Health Science 2017年第2期6卷 231-240页

作者： Patricia E.Longmuir charles Boyer Meghann Lloyd Michael M.Borghese Emily knight Travis J.Saunders Elena Boiarskaia Weimo Zhu Mark S.Tremblay Healthy Active Living and Obesity Research Group Children's Hospital of Eastern Ontario Research Institute Ottawa Ontario K1H 8L1 Canada Department of Pediatrics Faculty of Medicine and School of Human Kinetics University of Ottawa Ottawa K1H 8M5 Canada Faculty of Health sciences University of Ontario Institute of Technology Oshawa L1H 7K4 Canada School of kinesiology and Health Studies Queen 's University Kingston Ontario K7L 3N6 Canada Department of applied Human sciences University of Prince Edward Island Charlottetown Prince Edward Island C1A 4P3 Canada Department of kinesiology and community Health University of Illinois at Urbana-Champaign Urbana IL 61801 USA

Purpose: The primary aim of this study was to develop an assessment of the fundamental, combined, and complex movement skills required to support childhood physical literacy. The secondary aim was to establish the feasibility, objectivity, and reliability evidence for the ***: An expert advisory group recommended a course format for the assessment that would require children to complete a series of dynamic movement skills. criterion-referenced skill performance and completion time were the recommended forms of evaluation. children, 8–12 years of age, self-reported their age and gender and then completed the study assessments while attending local schools or day camps. Face validity was previously established through a Delphi expert(n = 19, 21% female) review process. convergent validity was evaluated by age and gender associations with assessment performance. Inter-and intra-rater(n = 53, 34% female) objectivity and test–retest(n = 60, 47% female) reliability were assessed through repeated test ***: Median total score was 21 of 28 points(range 5–28). Median completion time was 17 s. Total scores were feasible for all 995 children who self-reported age and gender. Total score did not differ between inside and outside environments(95% confidence interval(cI) of difference:-0.7 to 0.6;p = 0.91) or with/without footwear(95%cI of difference:-2.5 to 1.9; p = 0.77). Older age(p ciated with a higher total score. Inter-rater objectivity evidence was excellent(intraclass correlation coefficient(Icc) = 0.99) for completion time and substantial for skill score(Icc = 0.69) for 104 attempts by 53 children(34% female). Intra-rater objectivity was moderate(Icc = 0.52) for skill score and excellent for completion time(Icc = 0.99). Reliability was excellent for completion time over a short(2–4 days; Icc = 0.84) or long(8–14days; Icc = 0.82) interval. Skill score reliability was moderate(

关键词： Agility course children Dynamic motor skill Locomotor skill Object manipulation Population assessment