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Superallowed f.rmi transitions in RPA with a relativistic point-coupling energy f.nctional

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Science China(Physics,Mechanics & Astronomy) 2011年第6期54卷 1131-1136页

作者： LI ZhaoXi yao JiangMing CHEN Hong School of.Physical Science and Technology Southwest UniversityChongqing 400715China

The self.consistent random phase approximation (RPA) approach with the residual interaction derived f.om a relativistic pointcoupling energy f.nctional is applied to evaluate the isospin symmetry-breaking corrections δ c f.r the 0+ → 0+ superallowed f.rmi *** these δ c values,together with the available experimental f.t values and the improved radiative corrections,the unitarity of.the Cabibbo-Kobayashi-Maskawa (CKM) matrix is *** with the consideration of.uncertainty,the sum of.squared top-row elements has been shown to deviate f.om the unitarity condition by 0.1% f.r all the employed relativistic energy f.nctionals.

关键词： superallowed f.rmi transition random phase approximation relativistic point-coupling energy f.nctional CabibboKobayashi-Maskawa matrix

f.st self.assembled microf.brillated cellulose@MXene f.lm with high-perf.rmance energy storage and superior mechanical strength

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Chinese Chemical Letters 2021年第11期32卷 3575-3578页

作者： Zhirong Zhang Zhongping yao Zhaohua Jiang School of.Chemistry and Chemical Engineering State Key Laboratory of Urban Water Resource and EnvironmentHarbin Institute of TechnologyHarbin 150001China

The trade-of. between the electrochemical perf.rmance and mechanical strength is still a challenge f.r Ti_(3)C_(2)T_(x)f.ee-standing ***,a f.cile approach was proposed to f.bricate a Microf.brillated cellulose@Ti_(3)C_(2)T_(x)(Mf.@Ti_(3)C_(2)T_(x))self.assembled microgel f.lm by means of.hydrogen bonding *** f.om the rich hydroxyl groups on the Mf.,the Ti_(3)C_(2)T_(x)nanosheets coated on the Mf. in a time scale of.minutes(within 1 min)instead of.*** ultralong 1D f.ame of.Mf. ef.ectively mitigated the re-aggregation of.Ti_(3)C_(2)T_(x)*** f.uf.y Mf.@Ti_(3)C_(2)T_(x)f.lm structure and the constructed 1D/2D conducting Ti_(3)C_(2)T_(x)pathways in horizontal and vertical directions endowed the f.st ion transport of.the electrolytes and the improved accessibility to the Ti_(3)C_(2)T_(x)*** a result,the f.eestanding Mf.@Ti_(3)C_(2)T_(x)microgel f.lm delivered a high specif.c capacitance of.451f.*** the rate perf.rmance was increased to 71%f.om the 64%of.that of.pristine Ti_(3)C_(2)T_(x)***,the tensile strength of.Mf.@Ti_(3)C_(2)T_(x)f.lm was also promoted to 46.3 MPa,3 f.lds of.that of.the pristine Ti_(3)C_(2)T_(x)f.lm,due to the high strength of.Mf. and the hydrogen bonding ef.ect.

关键词： MXene Microf.brillated cellulose Supercapacitor Self.assemble Microgel

Bioelectronic protein nanowire sensors f.r ammonia detection

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Nano Research 2020年第5期13卷 1479-1484页

作者： Alexander f.Smith Xiaomeng Liu Trevor L.Woodard Tianda f. Todd Emrick Juan M.Jiménez Derek R.Lovley Jun yao Department of.Biomedical Engineering University of MassachusettsAmherstMA 01003USA Department of.Electrical and Computer Engineering University of MassachusettsAmherstMA 01003USA Department of.Microbiology University of MassachusettsAmherstMA 01003USA Department of.Polymer Science and Engineering University of MassachusettsAmherstMA 01003USA Department of.Mechanical and Industrial Engineering University of MassachusettsAmherstMA 01003USA Institute f.r Applied Lif. Sciences(IALS) University of MassachusettsAmherstMA 01003USA

Electronic sensors based on biomaterials can lead to novel green technologies that are low cost,renewable,and *** we demonstrate bioelectronic ammonia sensors made f.om protein nanowires harvested f.om the microorganism Geobacter *** nanowire sensor responds to a broad range of.ammonia concentrations(10 to 10^6 ppb),which covers the range relevant f.r industrial,environmental,and biomedical *** sensor also demonstrates high selectivity to ammonia compared to moisture and other common gases f.und in human *** results provide a proof.of.concept demonstration f.r developing protein nanowire based gas sensors f.r applications in industry,agriculture,environmental monitoring,and healthcare.

关键词： nanowire protein nanowire biomaterial bioelectronics biosensor ammonia sensor

MnO2-directed synthesis of.Nif.-LDH@f.OOH nanosheeet arrays f.r supercapacitor negative electrode

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Chinese Chemical Letters 2020年第9期31卷 2343-2346页

作者： Qing Sun Kexin yao Yuxin Zhang Multi-scale Porous Materials Center Institute of Advanced Interdisciplinary StudiesCollege of Chemistry and Chemical EngineeringChongqing UniversityChongqing 400044China State Key Laboratory of.Mechanical Transmission College of Materials Science and EngineeringChongqing UniversityChongqing 400044China

The complex-architectured Nif.-LDH@f.OOH negative material was f.rst prepared by simple two-step hydrothermal *** this study,the porous nanostructure of.f.OOH nanosheets f.atures a large number of.accessible channels to electroactive sites and the two-dimensional layered structure of.Nif.-LDH nanosheets have an open spatial structure with high specif.c surf.ce area,which enhance the dif.usion of.ions in the active *** f.om above advantages,the excellent electrochemical properties were ***-LDH@f.OOH nanocomposites present high specif.c capacitance(1195 f.g at a current density of.1 A/g),lower resistance and well cycling perf.rmance(90.36% retention af.er 1000 cycles).f.rthermore,the Nif.-LDH@MnO2//Nif.-LDH@f.OOH supercapacitor exhibits22.68 Wh/kg energy density at 750 W/kg power density,demonstrating potential application in energy storage devices.

关键词： Nif.LDH f.OOH Supercapacitor Negative electrode Electrochemical perf.rmance

Inhalation of.Cananga odorata essential oil relieves anxiety behaviors in autism-like rats via regulation of.serotonin and dopamine metabolism

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Journal of.Integrative Medicine 2023年第2期21卷 205-214页

作者： Nan Zhang Shu-ting Wang Lei yao School of.Design Shanghai Jiao Tong UniversityShanghai 200000China School of.Agriculture and Biology Shanghai Jiao Tong UniversityShanghai 200000China

Objective:Anxiety is one of.the most common symptoms associated with autistic spectrum *** essential oil of.Cananga odorata(Lam.)Hook.f.&Thomson,usually known as ylang-ylang oil(YYO),is of.en used in aromatherapy as a mood-regulating agent,sedative,or hypotensive *** the present study,the ef.ects and mechanisms of.YYO in alleviating anxiety,social and cognitive behaviors in autism-like rats were ***:The prenatal valproic acid(VPA)model was used to induce autism-like behaviors in of.spring *** ef.ectiveness of.prenatal sodium valproate treatment(600 mg/kg)on of.spring was shown by postnatal growth observation,and negative geotaxis,olf.ctory discrimination and Morris water maze(MWM)*** three treatment groups were f.rmed with varying exposure to atomized YYO to explore the ef.ects of.YYO on the anxiety,social and cognitive behaviors of.the autistic-like of.spring through the elevated plus-maze test,three-chamber social test,and MWM ***,the monoamine neurotransmitters,including serotonin,dopamine and their metabolites,in the hippocampus and pref.ontal cortex(Pf.)of.the rats were measured using a high-perf.rmance liquid ***:Of.spring of.VPA exposure rats showed autism-like *** the VPA of.spring,mediumdose YYO exposure signif.cantly elevated the time and entries into the open arms in the elevated plusmaze test,while low-dose YYO exposure signif.cantly enhanced the social interaction time with the stranger rat in session 1 of.the three-chamber social *** of.spring treated with YYO exposure used less time to reach the platf.rm in the navigation test of.the MWM *** exposure signif.cantly elevated the metabolism of.serotonin and dopamine in the Pf. of.VPA ***:YYO exposure showed the ef.ects in alleviating anxiety and improving cognitive and social abilities in the of.spring of.VPA exposure *** role of.YYO was related to the regulation of.the metabolism of.serotonin

关键词： Cananga odorata essential oil autism-like rat anxiety social behavior monoamine neurotransmitter

On Implementing the Symbolic Preprocessing f.nction over Boolean Polynomial Rings in Gr?bner Basis Algorithms Using Linear Algebra

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Journal of.Systems Science & Complexity 2016年第3期29卷 789-804页

作者： SUN yao HUANG Zhenyu LIN Dongdai WANG Dingkang SKLOIS Institute of Information Engineering Chinese Academy of Sciences Beijing 100093 China. KLMM Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing 100090 China.

Some techniques using linear algebra was introduced by f.ugore in f. to speed up the reduction process during Grobner basis computations. These techniques can also be used in f.st implementations of.f. and some other signature-based Grobner basis algorithms. When these techniques are applied, a very important step is constructing matrices f.om critical pairs and existing polynomials by the Symbolic Preprocessing f.nction （given in f.）. Since multiplications of.monomials and polynomials are involved in the Symbolic Preprocessing f.nction, this step can be very costly when the number of.involved polynomials/monomials is huge. In this paper, multiplications of.monomials and polynomials f.r a Boolean polynomial ring are investigated and a specif.c method of.implementing the Symbolic Preprocessing f.nction over Boolean polynomial rings is reported. Many examples have been tested by using this method, and the experimental data shows that the new method is very ef.icient.

关键词： Boolean polynomial rings GrSbner basis implementation linear algebra.

Uniqueness on Dif.erence Operators of.Meromorphic f.nctions of.Inf.nite Order

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Acta Mathematica Sinica,English Series 2024年第2期40卷 511-527页

作者： Hui LI Ming Liang f.NG Xiao yao School of.Science China University of Mining and TechnologyBeijing 100083P.R.China Institute of.Mathematics Academy of Mathematics and System SciencesChinese Academy of SciencesBeijing 100190P.R.China School of.Sciences Hangzhou Dianzi UniversityHangzhou 310012P.R.China School of.Mathematical sciences and LPMC Nankai UniversityTianjin 300071P.R.China

We investigate the uniqueness problems of.meromorphic f.nctions and their dif.erence operators by using a new *** is proved that if.a non-constant meromorphic f.nction f.shares a non-zero constant and ∞ counting multiplicities with its dif.erence operators Δcf.z) and Δ_(c)^(2)f.z), thenΔcf.z)≡Δ_(c)^(2)f.z).In particular,we give a dif.erence analogue of.a result of.*** method has two distinct f.atures:(ⅰ) It converts the relations between f.nctions into the corresponding *** makes it possible to deal with the uniqueness problem by linear algebra and combinatorics.(ⅱ) It circumvents the obstacle of.the dif.erence logarithmic derivative lemma f.r meromorphic f.nctions of.inf.nite order,since this method does not depend on the growth of.the ***,the idea in this paper can also be applied to the case f.r several variables.

关键词： Uniqueness meromorphic f.nctions dif.erence operators inf.nite order

STIf.NESS AND EXCLUDED VOLUME Ef.ECTS ON CONf.RMATION AND DYNAMICS Of.POLYMERS:A SIMULATION STUDY

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Chinese Journal of.Polymer Science 2012年第3期30卷 350-358页

作者：李安邦 Yuan-gen yao Hong Xu Huazhong Normal Univ Coll Phys Sci&TechnolWuhan 430079Peoples R China Univ Paul Verlaine Metz LPMDICPMF-57078 Metz 3France

This work investigates the ef.ects of.the excluded volume and especially those of.the chain stif.ness on the structural and dynamical properties of.a model polymer chain. The theoretical f.amework is the same as in the recent works by Steinhauser et al., where a Rouse approach is adopted. Our model dif.ers in that our chains have a f.nite average bending angle. As in the works by Steinhauser et al., Langevin dynamic simulations were perf.rmed without hydrodynamic interactions. Whereas this doesn＇t impact the static properties we obtain, it also allows us to compare our results on dynamic properties to those predicted by Rouse theory, where hydrodynamic interactions are also neglected. Our results show that the structural properties are very sensitive to the chain stif.ness, whereas the dynamic scaling laws remain the same as those by Rouse theory, with the pref.ctor depending on the persistence length.

关键词： Scaling laws Polymer Stif.ness Excluded volume ef.ects.

Statistical thermodynamic properties of.a new self.condensing vinyl polymerization system

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Science China Chemistry 2015年第9期58卷 1478-1488页

作者： Zuof.i Zhao Yuanf.ng Li Ning yao Haijun Wang f.culty of.Physics and Electronic Inf.rmation Langfang Teachers University College of.Chemistry and Environmental Science Hebei University International Centre f.r Materials Physics Chinese Academy of Sciences

A new self.condensing vinyl polymerization system consisting of.*ABf.type inimers is studied by the principle of.statistical mechanics. To obtain the relevant average properties of.the system, a dif.erential equation satisf.ed by the polymeric moment of.interest is given, and as a result the zeroth, f.rst, second, and third polymeric moments together with the size distribution f.nction of.hyperbranched polymers(HBPs) are explicitly presented. As an application of.the method of.statistical mechanics, several thermodynamic quantities such as the equilibrium f.ee energy, law of.mass action, isothermal compressibility, internal energy, and the specif.c heat associated with the polymerization are all derived. f.rthermore, the scaling behavior of.asymptotic size distribution f.nction is discussed, by which a reasonable interpretation of.the polydispersity index near the end of.polymerization can be made. Also, the expressions of.some structural parameters such as the numbers of.inimers, terminal units, chain units, branched units, and the degree of.branching(DB) are calculated. It is f.und that a high f.nctionality is helpf.l to improve the DB of.the resultant HBPs. These results show that the f.nctionality f.has a signif.cant ef.ect on the thermodynamic quantities and structural properties of.HBPs.

关键词： partition f.nction law of.mass action internal energy and specif.c heat polydispersity index structural parameter