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Hydrothermal Synthesis,Crystal Structure and Spectral Characterization of a New Copper Isopolytungstate: [Cu(phen)_3][W_6O_(19)]

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Chinese Journal of Structural Chemistry 2006年第7期25卷 837-843页

作者： MENG fan-Xia LIU Kun CHEN Ya-guang Institute of Polyoxometalate Chemistry Faculty of Chemistry Northeast Normal University Changchun 130024 China

An unusual inorganic-organic hybrid hexatungstate complex [Cu（phen）3][W6O19] 1 （C36H24 CuN6O19W6, Mr= 2011.20） was hydrothermally synthesized and characterized by singlecrystal X-ray diffraction, IR spectrum, UV-VIS spectrum and elemental analyses. This compound crystallizes in the monoclinic system, space group C2/c with a = 19.1005（11）, b = 11.2585（11）, c = 20.2867（15） A, β= 102.177（2）°, V= 4264.4 A^ 3, μ（MoKa） = 16.691 mm^-1, Dc = 3.133 g/cm^3, Z = 4, F（000） = 3628, the final R = 0.0338 and wR = 0.0798 for 4090 observed reflections with I 〉 2σ（I）. The result of structure determination shows that the crystal structure is constructed from [W6O19]^2- cluster anions and [Cu（phen）3]^2＋ complex fragments, which are held together into a three-dimensional network through hydrogen-bonding interactions.

关键词： hydrothermal synthesis tungstates polyoxometalates copper coordination complexes

Microglia lactylation in relation to central nervous system diseases

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Neural Regeneration Research 2025年第1期20卷 29-40页

作者： Hui Yang Nan Mo Le Tong Jianhong Dong Ziwei fan Mengxian Jia Juanqing Yue Ying Wang School of Pharmacy Hangzhou Normal UniversityHangzhouZhejiang ProvinceChina Department of Clinical Laboratory The Fourth Clinical Medical College of Zhejiang University of Traditional Chinese Medicine(Hangzhou First People’s Hospital)HangzhouZhejiang ProvinceChina College of Medical Veterinary and Life SciencesUniversity of GlasgowGlasgowUK Department of Orthopedics(Spine Surgery) the First Affiliated Hospital of Wenzhou Medical UniversityWenzhouZhejiang ProvinceChina Department of Pathology Affiliated Hangzhou First People’s HospitalWestlake University School of MedicineHangzhouZhejiang ProvinceChina Department of Clinical Research Center Affiliated Hangzhou First People’s HospitalWestlake University School of MedicineHangzhouZhejiang ProvinceChina

The development of neurodegenerative diseases is closely related to the disruption of central nervous system ***,as innate immune cells,play important roles in the maintenance of central nervous system homeostasis,injury response,and neurodegenerative *** has been considered a metabolic waste product,but recent studies are revealing ever more of the physiological functions of *** is an important pathway in lactate function and is involved in glycolysis-related functions,macrophage polarization,neuromodulation,and angiogenesis and has also been implicated in the development of various *** review provides an overview of the lactate metabolic and homeostatic regulatory processes involved in microglia lactylation,histone versus non-histone lactylation,and therapeutic approaches targeting ***,we summarize the current research on microglia lactylation in central nervous system diseases.A deeper understanding of the metabolic regulatory mechanisms of microglia lactylation will provide more options for the treatment of central nervous system diseases.

关键词： brain central nervous system glycolysis immune response inflammation lactate metabolism lactate lactylation microglia neurodegenerative diseases

Remarks on Component Factors

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Journal of the Operations Research Society of China 2023年第3期11卷 657-666页

作者： wei Gao wei-fan Wang School of Information Science and Technology Yunnan Normal UniversityKunming650500YunnanChina Department of Mathematics Zhejiang Normal UniversityJinhua321004ZhejiangChina

In this remark,we first simply survey the important results on component factors in ***,we focus on the binding number condition of component factors in some special *** main contributions in this remark are two folded:(1)we reveal that the existence of some special component factors is equal to some specific binding number conditions;(2)the parameter conditions for a graph G with a P≥3-factor are determined.

关键词： H-factor Component factor Binding number

Causal inference using regression-based statistical control: Confusion in Econometrics

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Journal of Data and Information Science 2023年第1期8卷 21-28页

作者： fan Chao guang Yu School of Management Harbin Institute of TechnologyHarbin 150001China

Regression is a widely used econometric tool in research. In observational studies, based on a number of assumptions, regression-based statistical control methods attempt to analyze the causation between treatment and outcome by adding control variables. However, this approach may not produce reliable estimates of causal effects. In addition to the shortcomings of the method, this lack of confidence is mainly related to ambiguous formulations in econometrics, such as the definition of selection bias, selection of core control variables, and method of testing for robustness. Within the framework of the causal models, we clarify the assumption of causal inference using regression-based statistical controls, as described in econometrics, and discuss how to select core control variables to satisfy this assumption and conduct robustness tests for regression estimates.

关键词： Causal Inference Regression Observational Studies Econometrics Causal Model

Quantifying spectral thermal transport properties in framework of molecular dynamics simulations:a comprehensive review

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Rare Metals 2023年第12期42卷 3914-3944页

作者： Yi-Xin Xu Hong-Zhao fan Yan-guang Zhou Department of Mechanical and Aerospace Engineering The Hong Kong University of Science and TechnologyHong Kong 999077China HKUST Shenzhen-Hong Kong Collaborative Innovation Research Institute Shenzhen 518000China

Over the past few decades,significant progress has been made in micro-and nanoscale heat *** computational methods have been developed to quantitatively characterize the thermal transport in bulk materials and across the interfaces,which benefit the thermal management design in microelectronics and energy conversion in thermoelectrics *** this paper,the methods and studies on quantifying thermal transport properties using molecular dynamics simulations are comprehensively *** classical methods based on molecular dynamics simulations are first introduced,i.e.,equilibrium molecular dynamics and nonequilibrium molecular dynamics,to calculate the thermal transport properties in bulk materials and across the *** spectroscopy methods are then reviewed,which are developed in the framework of equilibrium molecular dynamics(i.e.,time domain normal mode analysis,spectral energy density,Green-Kubo modal analysis) and methods proposed based on the nonequilibrium molecular dynamics(i.e.,time domain direct decompose method,frequency domain direct decompose method and spectral heat flux method).In the subsequent section,the calculations of spectral thermal conductivities using these computational methods in various systems are presented,including simple crystals,low-dimensional materials,complex materials and *** that,spectral thermal transport across the interfacial systems is discussed,which includes solid/solid interfaces,solid/solid interfaces with interfacial engineering and solid/liquid *** fundamental challenges in molecular dynamics simulations,such as including quantum effects and quantifying the anharmonic contributions,are discussed as ***,some open problems on spectroscopy thermal transport properties in the framework of molecular dynamics simulations are given in the summary.

关键词： Thermal transport Spectral decomposition Molecular dynamics simulations Interfacial thermal transport Complex system

A surface engineering strategy for the stabilization of zinc metal anodes with montmorillonite layers toward long-life rechargeable aqueous zinc ion batteries

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Journal of Energy Chemistry 2025年第1期100卷 94-105页

作者： Wenbo Wang Ruifeng Xu Xu Zhang Peiyu Wang Bao Yang Bingjun Yang Juan Yang Kailimai Su Pengjun Ma Yanan Deng Xianfeng fan Wanjun Chen Key Laboratory for Electronic Materials College of Electrical Engineering Northwest Minzu University Resource Chemistry and Energy Materials Research Center State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences University of Chinese Academy of Sciences Institute for Materials and Processes School of Engineering University of Edinburgh

Rechargeable aqueous zinc-ion batteries （AZIBs） exhibit appreciable potential in the domain of electrochemical energy ***,there are serious challenges for AZIBs,for instance zinc dendrite growth,hydrogen evolution reaction （HER）,and corrosion side ***,we propose a surface engineering modification strategy for coating the montmorillonite （MMT） layer onto the surface of the Zn anode to tackle these issues,thereby achieving high cycling stability for rechargeable *** results reveal that the MMT layer on the surface of the Zn anode is able to provide ordered zincophilic channels for zinc ions migration,facilitating the reaction kinetics of zinc *** functional theory（DFT） calculations and water contact angle （CA） tests prove that MMT@Zn anode exhibits superior adsorption capacity for Zn2+and better hydrophobicity than the bare Zn anode,thereby achieving excellent cycling ***,the MMT@Zn||MMT@Zn symmetric cell holds the stable cycling over 5600 h at 0.5 mA cm-2and 0.125 m A h cm-2,even exceeding 1800 h long cycling under harsh conditions of 5 m A cm-2and 1.25 m A h *** MMT@Zn||V2O5full cell reaches over 3000 cycles at 2 A g-1with excellent rate ***,this surface engineering modification strategy for enhancing the electrochemical performance of AZIBs represents a promising application.

关键词： Surface engineering strategy Montmorillonite layer Protection mechanism of Zn anode Cycling stability Aqueous zinc ion batteries

Synthesis of ruthenium/reduced graphene oxide composites and application for the selective hydrogenation of halonitroaromatics

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Chinese Chemical Letters 2014年第2期25卷 359-363页

作者： guang-Yin fan Wen-Jun Huang Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province College of Chemistry and Chemical Engineering China West Normal University

Reduced graphene oxide （RGO） supported ruthenium （Ru） catalyst was prepared by an impregnation method using RuCI3 as a precursor and RGO as a support. The catalyst Ru/RGO was used for the selective hydrogenation ofp-chloronitrobenzene （p-CNB） to p-chloroaniline （p-CAN）, showing a selectivity of 96% at complete conversion of p-CNB at 60 ℃ and 3.0 MPa H2. The Ru/RGO catalyst was extremely active for the hydrogenation of a series of nitroarenes, which can be attributed to the small sized and the fine dispersity of the Ru nanoparticles on the RGO sheets characterized by TEM. Moreover, the catalyst also can be recycled five times without the loss of activity.

关键词： p-Chloroanfline Hydrogenation Ruthenium Graphene

Wigner Distribution Function and Husimi Function of a Kind of Squeezed Coherent State

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Communications in Theoretical Physics 2007年第3期47卷 427-430页

作者： fan Hong-Yi LIU Shu-guang Department of Materials Science and Engineering University of Science and Technology of China Hefei 230026 China

We find a new x-parameter squeezed coherent state （p, q）κ representation, which possesses well-behaved features, i.e., its Wigner function＇s marginal distribution in the ＂q-direction＂ and in the ＂p-direction＂ is the Gauss/an form exp（-κ（q＇ - q）2}, and exp{（p＇ - p）2/κ}, respectively. Based on this, the Husimi function of（p, q）κ is also obtained, which is a Gauss/an broaden version of the Wigner function. The （P, q）κ state provides a good representative space for studying various properties ot the Husimi operator.

关键词： Wigner function Husimi function squeezed coherent state IWOP technique

Learning curves of robot-assisted pedicle screw fixations based on the cumulative sum test

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World Journal of Clinical Cases 2021年第33期9卷 10134-10142页

作者： Jie Yu Qi Zhang Ming-Xing fan Xiao-guang Han Bo Liu wei Tian Department of Spine Surgery Beijing Jishuitan HospitalBeijing 100035China

BACKGROUND In robot-assisted(RA)spine surgery,the relationship between the surgical outcome and the learning curve remains to be *** To analyze the learning curve of RA pedicle screw fixation(PSF)through fitting the operation time curve based on the cumulative summation *** RA PSFs that were initially completed by two surgeons at the Beijing Jishuitan Hospital from July 2016 to March 2019 were analyzed *** on the cumulative sum of the operation time,the learning curves of the two surgeons were drawn and fit to polynomial *** learning curve was divided into the early and late stages according to the shape of the fitted *** operation time and screw accuracy were compared between the *** The turning point of the learning curves from Surgeons A and B appeared in the 18th and 17th cases,*** operation time[150(128,188)min vs 120(105,150)min,P=0.002]and the screw accuracy(87.50%vs 96.30%,P=0.026)of RA surgeries performed by Surgeon A were significantly improved after he completed 18 *** the case of Surgeon B,the operation time(177.35±28.18 min vs 150.00±34.64 min,P=0.024)was significantly reduced,and the screw accuracy(91.18%vs 96.15%,P=0.475)was slightly improved after the surgeon completed 17 RA *** After completing 17 to 18 cases of RA PSFs,surgeons can pass the learning phase of RA *** operation time is reduced afterward,and the screw accuracy shows a trend of improvement.

关键词： Robot-assisted spine surgery Pedicle screw fixation Learning curve Accuracy Operation time