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Siliceous mesocellular foam supported Cu catalysts for promoting non-thermal plasma activated CO_(2. hydrogenation toward methanol synthesis

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Frontiers of Chemical Science and Engineering 2024年第7期18卷 55-65页

作者： Yi Chen Shaowei Chen Yan Shao Cui Quan ningbo Gao Xiaolei Fan Huanhao Chen State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical EngineeringNanjing Tech UniversityNanjing 211816China School of Environmental Science and Engineering Nanjing Tech UniversityNanjing 211816China School of Energy and Power Engineering Xi’an Jiaotong UniversityXi’an 710049China department of Chemical Engineering School of EngineeringThe University of ManchesterManchester M139PLUK Nottingham ningbo China Beacons of Excellence Research and Innovation Institute University of Nottingham Ningbo ChinaNingbo 315048China Institute of Wenzhou Zhejiang UniversityWenzhou 325006China

Electrified non-thermal plasma (NTP) catalytic hydrogenation is the promising alternative to the thermal counterparts, being able to be operated under mild conditions and compatible with green electricity/hydrogen. Rational design of the catalysts for such NTP-catalytic systems is one of the keys to improve the process efficiency. Here, we present the development of siliceous mesocellular foam (MCF) supported Cu catalysts for NTP-catalytic CO_(2. hydrogenation to methanol. The findings show that the pristine MCF support with high specific surface area and large mesopore of 784 m2.g−1 and ~8.5 nm could promote the plasma discharging and the diffusion of species through its framework, outperforming other control porous materials (viz., silicalite-1, SiO_(2., and SBA-15). Compared to the NTP system employing the bare MCF, the inclusion of Cu and Zn in MCF (i.e., Cu1Zn1/MCF) promoted the methanol formation of the NTP-catalytic system with a higher space-time yield of methanol at ~2.5 μmol·g_(cat)^(−1)·h^(−1) and a lower energy consumption of 2..4 kJ^(−1)·mmol_(CH_(3)OH)^(-1) (conversely, ~2.5 μmol·g_(cat)^(−1)·h^(−1) and ~71 kJ^(−1)·mmol_(CH_(3)OH)^(-1), respectively, for the bare MCF system at 10.1 kV). The findings suggest that inclusion of active metal sites (especially Zn species) could stabilize the CO_(2./CO-related intermediates to facilitate the surface reaction toward methanol formation.

关键词： non-thermal plasma(NTP)catalysis Cu catalyst CO_(2.hydrogenation methanol siliceous mesocellular foam(MCF)

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Anti-biofilm and anti-virulence potential of cell free supernatant of Akkermansia muciniphila against Salmonella

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Food Science and Human Wellness 2024年第5期13卷 2677-2689页

作者： Jiaxiu Liu Wenxiu Zhu Huanhuan Liu Xiaomeng Ren ningbo Qin Xiaodong Xia National Engineering Research Center of Seafood School of Food Science and TechnologyDalian Polytechnic UniversityDalian 116034China

Akkermansia muciniphila is one of the commensals residing within the mammalian gut and co-evolving with the *** studies have demonstrated the benefits of *** in ameliorating metabolic disorders,while little is known about the antimicrobial potential of *** against ***,we examined the antimicrobial and anti-virulence properties of cell free supernatant(CFS)of *** against Salmonella *** retarded bacterial growth and inhibited the motility of *** SL1344 and *** *** dose-dependently reduced cell hydrophobicity and auto-aggregation of both ***,CFS from *** significantly attenuated biofilm *** with untreated bacteria,CFS-treated bacteria significantly decreased adhesion and invasion to Caco-2.cells,and reduced intracellular survival in *** maintained antimicrobial properties after treatment with high temperatures and various proteases,while it lost its antimicrobial activity after pH *** chromatography-mass spectrometry(GC-MS)confirmed that *** produced a certain amount of acetate and propionate,and ultra-high-performance liquid chromatography-mass spectrometry(UHPLCMS)identified other organic acids and metabolites in *** summary,CFS from *** exhibited anti-biofilm and anti-virulence properties against Salmonella and could be potentially utilized in the food industry for controlling Salmonella contamination and reducing infection.

关键词： Akkermansia muciniphila Salmonella Biofilm Motility Short-chain fatty acid Adhesion Invasion

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Embedding Perovskite in Polymer Matrix Achieved Positive Temperature Response with Inversed Temperature Crystallization

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Energy & Environmental Materials 2024年第5期7卷 361-371页

作者： Meiting Peng Xue Guan Yingzhu Wu Nan Zhang Qi Feng Liyong Tian Yancheng Wu Yangfan Zhang Feng Gan Fuqin Deng Meilin Huang Guichuan Xing ningbo Yi College of Textile Science and Engineering Wuyi University Institute of Applied physics and Materials Engineering University of Macau School of Applied physics and Materials Wuyi University Faculty of Intelligent Manufacturing Wuyi University

Organic perovskites are promising semiconductor materials for advanced photoelectric applications. Their fluorescence typically shows a negative temperature coefficient due to bandgap change and structural instability. In this study, a novel perovskite-based composite with positive sensitivity to temperature was designed and obtained based on its inverse temperature crystallization, demonstrating good flexibility and solution processability. The supercritical drying method was used to address the limitations of annealing drying in preparing high-performance perovskite. Optimizing the precursor composition proved to be an effective approach for achieving high fluorescence and structural integrity in the perovskite material. This perovskite-based composite exhibited a positive temperature sensitivity of2..563%℃-1for intensity change and excellent temperature cycling reversibility in the range of 2.–40℃in an ambient environment. This made it suitable for use as a smart window with rapid response. Furthermore, the perovskite composite was found to offer temperature-sensing photoluminescence and flexible processability due to its components of perovskite-based compounds and polyethylene oxide. The organic precursor solvent could be a promising candidate for use as ink to print or write on various substrates for optoelectronic devices responding to temperature.

关键词： flexibility inversed temperature crystallization perovskite positive temperature response

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Coordinate-Dependent One- and Two-Mode Squeezing Transformation and the Corresponding Squeezed States

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Communications in Theoretical physics 2007年第12期48卷 1093-1098页

作者： REN Gang SONG Tong-Qiang department of physics,{2. university,{2. 3.52.1,China department of physics Ningbo University Ningbo 315211 China

We introduce the coordinate-dependent one-and two-mode squeezing transformations and discuss theproperties of the corresponding one-and two-mode squeezed *** show that the coordinate-dependent one-and two-mode squeezing transformations can be constructed by the combination of two transformations,a coordinate-dependentdisplacement followed by the standard squeezed *** a decomposition turns a nonlinear problem intoa linear one because all the calculations involving the nonlinear one- and two-mode squeezed transformation have beenshown to be able to reduce to those only concerning the standard one- and two-mode squeezed states.

关键词： one-and two-mode squeezed states nonlinear Bogoliubov transformations

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Hysteresis behavior and nonequilibrium phase transition in a one-dimensional evolutionary game model

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Chinese physics B 2013年第4期22卷 213-217页

作者：华达银 physics department Ningbo University

We investigate a simple evolutionary game model in one dimension. It is found that the system exhibits a discontinuous phase transition from a defection state to a cooperation state when the b payoff of a defector exploiting a cooperator is small. Furthermore, if b is large enough, then the system exhibits two continuous phase transitions between two absorbing states and a coexistence state of cooperation and defection, respectively. The tri-critical point is roughly estimated. Moreover, it is found that the critical behavior of the continuous phase transition with an absorbing state is in the directed percolation universality class.

关键词： evolutionary game model nonequilibrium phase transition with absorbing state cooperation phenomenon hysteresis behavior

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Pairwise entanglement and local polarization of Heisenberg model

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Science China(physics,Mechanics & Astronomy) 2008年第10期51卷 1515-1522页

作者： XI XiaoQiang1,2. ZHANG Tao3, YUE RuiHong3,4 & LIU WuMing2.1 department of Applied Mathematics and physics, Xi’an Institute of Post and Telecommunications, Xi’an 710061, China 2.Beijing National Laboratory for Condensed Matter physics, Institute of physics, Chinese Academy of Sciences, Beijing 100080, China 3 Institute of Modern physics, Northwest university, Xi’an 710069, China 4 department of physics, ningbo university, ningbo 3.52.1, China department of Applied Mathematics and physics Xi’an Institute of Post and Telecommunications Xi’an China Beijing National Laboratory for Condensed Matter physics Institute of Physics Chinese Academy of Sciences Beijing China Institute of Modern physics Northwest University Xi’an China department of physics Ningbo University Ningbo China

The characteristics of pairwise entanglement and local polarization (LP) are dis-cussed by studying the ground state (states) of the Heisenberg XX model. The re-sults show that: the ground state (states) is (are) composed of the micro states with the minimal polarization (0 for even qubit and 1/2.for odd qubit); LP and the prob-ability of the micro state have an intimate relation, i.e. the stronger the LP, the smaller the probability, and the same LP corresponds to the same probability; the pairwise entanglement of the ground state is the biggest in all eigenvectors. It is found that the pairwise entanglement is decreased by the state degeneracy and the system size. The concurrence approaches a fixed value of about 0.3412.(for odd-qubit chain) or 0.3491 (for even-qubit chain) if the qubit number is large enough.

关键词： Heisenberg XX model local polarization pairwise entanglement

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Entangled Fractional Fourier Transform for the Multipartite Entangled State Representation

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Communications in Theoretical physics 2006年第6期45卷 1097-1101页

作者： QIAN Xiao-Qing SONG Tong-Qiang department of physics,{2. university,{2. 3.52.1,China department of physics Ningbo University Ningbo 315211 China

Abstract We deduce entangled fractional Fourier transformation(EFFT)for the multipartite entangled state rep-resentation,which was newly constructed with two mutually conjugate n-mode entangled states of continuum variablesin n-mode Fock *** establish a formalism of EFFT for quantum mechanical wave functions,which provides us aconvenient way to derive some wave *** find that the eigenmode of EFFT is different from the usual *** also derive the EFFT of the n-mode squeezed state.

关键词： :entangled fractional Fourier transformation(EFFT) multipartite entangled state

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A Series of Soliton-like and Double-like Periodic Solutions of a (2.1)-Dimensional Asymmetric Nizhnik-Novikov-Vesselov Equation

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Communications in Theoretical physics 2004年第11期42卷 655-660页

作者： CHEN Yong,~(1,3,4, WANG Qi~(2.4) LI Biao~(2.4) ~1department of Mathematics,ningbo {2.,ningbo 3.52.1,China ~2.0} of Applied Mathematics,Dalian {2. of Technology,Dalian 11602.,China ~3department of physics,Shanghai Jiao Tong {2.,Shanghai 2.0030,China ~4Key Laboratory of Mathematics Mechanization~ the Chinese Academy of Sciences,Beijing 100080,China department of Mathematics Ningbo University Ningbo 315211 China department of physics Shanghai Jiao Tong University Shanghai 200030 China Key Laboratory of Mathematics Mechanization the Chinese Academy of Sciences Beijing 100080 China department of Applied Mathematics Dalian University of Technology Dalian 116024 China

We generalize the algebraic method presented by Fan [***.A:***.36 (2.03) 7009)] to uniformlyconstruct a series of soliton-like solutions and double-llke periodic solutions for nonlinear partial differential equations(NPDE),As an application of the method,we choose a (2.1)-dimensional asymmetric Nizhnik-Novikov-Vesselov equa-tion and successfully construct new and more general solutions including a series of nontraveling wave and coefficientfunctions’ soliton-like solutions,double-like periodic and trigonometric-like function solutions.

关键词： symbolic computation soliton-like solution Weierstrass and Jacobi elliptic functions periodic solution

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A Classical Toda Family with a Common Virasoro Symmetry Algebra

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Communications in Theoretical physics 2004年第6期41卷 813-815页

作者： QIAN Xian-Min LOU Sen-Yue ~1department of physics,Shanghai Jiao Tong {2.,Shanghai 2.0030,China ~2.0} of physics,Shaoxing College of Arts and Sciences,Shaoxing 312.00,China department of physics,ningbo {2.,ningbo 3.52.1,China department of physics Shanghai Jiao Tong University Shanghai 200030 China department of physics Shaoxing College of Arts and Sciences Shaoxing 312000 China department of physics Ningbo University Ningbo 315211 China

By means of a simple ideal,which is firstly proposed for the continuous system,we present an arbitraryorder classical Toda family invariant under common Virasoro-type symmetry algebra.

关键词： classical Toda family Virasoro symmetry algebra

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高校智库服务决策的模式构建与高质量发展——基于知识生产模式转型的视角

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教育科学 2024年第1期40卷 29-35页

作者：邓志超朱宁波辽宁师范大学教育学部辽宁大连116029

高校智库服务决策本质上是一种知识生产活动。知识生产模式转型背景下,高校智库服务决策的内涵更加丰富,目标情境、参与主体、研究范式、评价方式等不断变化,展现出诸多新特征。本研究通过对高校智库服务决策特征变化的分析,构建了高校... 详细信息

高校智库服务决策本质上是一种知识生产活动。知识生产模式转型背景下,高校智库服务决策的内涵更加丰富,目标情境、参与主体、研究范式、评价方式等不断变化,展现出诸多新特征。本研究通过对高校智库服务决策特征变化的分析,构建了高校智库服务决策的三种模式:学科中心学术情境下“学—政”互动的专家模式、跨学科应用情境下“智—政”互动的平台模式和超学科适应情境下多边互动的开放模式。在这三种模式演进和共生发展情境下,提出高校智库服务决策实现高质量发展的四条进路:树立符合国家需求与公共利益的服务决策理念,创新多边互动的服务决策组织形式,构建多层次的服务决策研究范式,建立开放多元的服务决策评价体系。

关键词：智库高校智库知识生产知识生产模式服务决策

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