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Interleukin-12 and interferon-γacting on damp-heat of spleen-stomach syndrome triggered by helicobacter pylori

Journal of Traditional Chinese Medicine 2017年第6期37卷 827-834页

作者： Chen Wanqun Hu Ling Li Heyuan Luo qi Fan Dongmei zhang Yunzhan Institute of Gastroenterology Guangzhou University of Chinese MedicineGuangzhou 510405China Department of Gastroenterology Chongqing Hospital of Traditional Chinese MedicineChongqing 400037China Institute of Gastroenterology Guangzhou University of Chinese MedicineGuangzhou 510405China Institute of Gastroenterology GuangzhouUniversity of Chinese MedicineGuangzhou 510405ChinaDigestive Departmentthe First Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhou 510405China

OBJECTIVE: To investigate the expression of and interleukin-12(IL-12) and interferon-γ(IFN-γ) in relation to the pathology of damp-heat of spleen-stomach syndrome(DHSS) induced by Helicobacter pylori(H. pylori) ***: In total, 114 individual gastric mucosal specimens including 83 DHSS, 19 spleen-qi deficiency syndrome(SQD) and 12 from healthy volunteers(CON) were collected by gastroscopy. To explore the relationship between the two syndromes and H. pylori infection, individual samples were tested using rapid urease and methylene blue tests. Hematoxylin and eosin stained sections were examined to grade for the degree of inflammation and inflammatory activity, and expression of IL-12 and IFN-γ was investigated by ***: Statistically significant differences in the degree of inflammation and inflammatory activity were observed between the groups of specimens:DHSS, SQD and CON(P 0.05) groups. Intriguingly, in gastric specimens exhibiting IM and dysplasia, IL-12 translocated from the nucleus into the ***: Our findings suggest that IL-12 and IFN-γ are involved in DHSS pathology, but not in SQD, acting as healthy-qi. DHSS is not just the consequence of those two cytokines but results from the cross-talk between a number of cytokines and/or other proteins, which may warrant further investigation in DHSS patients infected with H. pylori.

关键词： Helicobacter pylori Interleukin-12 Interferon-gamma Spleen stomach dampness heat Spleen qi deficiency

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Symmetry Reduction of Initial-Value Problems for a Class of Third-order Evolution Equations

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Communications in Theoretical Physics 2009年第7期52卷 55-59页

作者： LI Ji-Na FENG Wei qi Xin-Lei zhang Shun-Li Center for Nonlinear Studies Department of Mathematics Northwest University Xi＇an 710069 China Center of Nonlinear Science Ningbo University Ningbo 315211 China

Symmetry reduction of a class of third-order evolution equations that admit certain generalized conditionalsymmetries (GCSs) is *** reducibility of the initial-value problem for an evolution equation to a Cauchyproblem for a system of ordinary differential equations (ODEs) is characterized via the GCS and its Lie *** classification theorems are obtained and some examples are taken to show the main reduction procedure.

关键词： symmetry reduction third-order evolution equation Cauchy problem

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Effect of water on extractive desulfurization of fuel oils using ionic liquids： A COSMO-RS and experimental study

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Chinese Journal of Chemical Engineering 2017年第2期25卷 159-165页

作者： Zhen Song Dian Yu qian Zeng Jingjing zhang Hongye Cheng Lifang Chen Zhiwen qi Max Planck Partner Group at the State Key Laboratory of Chemical Engineering School of Chemical Engineering East Chino University of Sdence and Technology Shanghai 200237 China

When evaluating ionic liquids （ILs） for extractive desulfurization （EDS） of fuel oils, the inevitable presence of water in the system may have a significant and in many cases strongly negative effect. However, few studies have considered this particular issue and a promoted water effect on EDS is scarcely reported. In this work, COSMO-RS was firstly employed to calculate the capacity and selectivity for EDS of various IL/H20 mixtures, which cover different IL characters and a wide water concentration range. Experiments were then conducted with a representative IL [C4MIM]IH2P04], whose stable and even promoted extraction performance with a small amount of water was suggested by COSMO-RS. Through analyses of the desulfurization ratio, the cross- solubility and the water content in the desulfurized fuel, the promoted effect of water within a certain range （〈 10 wt%） was experimentally demonstrated. Moreover, such effect of water was explained combining the viscosity, the solvent-solute interactions and the COSMO-RS based analysis.

关键词： Extractive desulfudzationIonic liquidsCOSMO-RSWater content effect

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Review of recent developments in cement composites reinforced with fibers and nanomaterials

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Frontiers of Structural and Civil Engineering 2021年第1期15卷 1-19页

作者： Jianzhuang XIAO Nv HAN yan LI Zhongsen zhang Surendra P.SHAH College of Civil Engineering Tongji UniversityShanghai 200092China School of Aerospace Engineering and Applied Mechanics Tongji UniversityShanghai 200092China Center for Advanced Cement-Based Materials Northwestern UniversityEvanstonIL 60208USA

The quest for high-performance construction materials is led by the development and application of new reinforcement materials for cement *** reinforcement with fibers has a long ***,many new fibers associated with high performance and possessing eco-environmental characteristics,such as basalt fibers and plant fibers,have received much attention from *** addition,nanomaterials are considered as a core material in the modification of cement composites,specifically in the enhancement of the strength and durability of *** paper provides an overview of the recent research progress on cement composites reinforced with fibers and *** influences of fibers and nanomaterials on the fresh and hardened properties of cement composites are ***,future trends in the application of these fibers or of nanomaterial-reinforced cement composites are proposed.

关键词： cement composites fiber nanomaterial mechanical property durability

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An advanced 2D/3D g-C_(3)N_(4)/TiO_(2)@MnO_(2) multifunctional membrane for sunlight-driven sustainable water purification

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Nano Research 2024年第4期17卷 2368-2380页

作者： Fan Yu Chunjia Luo Xiaohan Niu Min Chao Pengfei zhang Luke yan Polymer Materials&Engineering Department School of Materials Science&EngineeringChang’an UniversityXi’an 710064China Key Laboratory of Road Construction Technology and Equipment MOEChang’an UniversityXi’an 710064China School of Textile Science and Engineering Xi’an Polytechnic UniversityXi’an 710064China

Graphitic carbon nitride(g-C_(3)N_(4))nanosheets have attracted widespread interest in the construction of advanced separation ***,dense stacking and a single functionality have limited the membrane ***,an advanced two-/three-dimensional(2D/3D)g-C_(3)N_(4)/TiO_(2)@MnO_(2) membrane is constructed by intercalating 3D TiO_(2)@MnO_(2) nanostructures into g-C_(3)N_(4) *** 3D flower-like nanostructures broaden the transport channels of the composite *** membrane can effectively separate five oil-in-water(O/W)emulsions,with a maximum flux of 3265.67±15.01 L·m^(-2)·h^(-1)·bar^(-1) and a maximum efficiency of 99.69%±0.45%for toluene-in-water emulsion(T/W).Meanwhile,the TiO_(2)@MnO_(2) acts as an excellent electron acceptor and provides positive spatial separation of electrons–holes(e^(-)–h^(+)).The formation of 2D/3D heterojunctions allows the material with wider light absorption and smaller bandgap(2.10 eV).These photoelectric properties give the membrane good degradation of three different pollutants,with about 100%degradation for methylene blue(MB)and malachite green(MG).The photocatalytic antibacterial efficiency of the membrane is also about 100%.After cyclic experiment,the membrane maintains its original separation and photocatalytic *** remarkable multifunctional and self-cleaning properties of the g-C_(3)N_(4) based membrane represent its potential value for complex wastewater treatment.

关键词： graphitic carbon nitride(g-C_(3)N_(4))based membrane three-dimensional(3D)nanostructures self-cleaning multifunction

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Modeling of High-frequency Electromagnetic Oscillation for DC Fault in MMC-HVDC Systems

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CSEE Journal of Power and Energy Systems 2023年第3期9卷 1151-1160页

作者： Hong Shen Zhonghao Dongye Lei qi Muxue Wang Xiangyu zhang Peng qiu Xiaoguang Wei State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power UniversityBeijing 102206China Electric Power Research Institute State Grid Zhejiang Electric Power CompanyHangzhou 310014China State Key Laboratory of Advanced Power Transmission Technology Global Energy Interconnection Research Institute Co.Ltd.Beijing 102209China

DC short-circuit faults pose a hazard to the operation of a modular multilevel converter(MMC)-based high voltage direct current(HVDC)system,necessitating reliable fault clearing solutions with rapid ***,because the parasitic capacitances of the main equipment oscillate with the lumped inductances of the HVDC system,strong electromagnetic oscillations with multiple frequencies occur during clearance *** oscillations will disturb the HVDC system’s protection and control ***,this paper focuses on the modeling of these ***,an equivalent circuit for the MMC-based HVDC system is proposed,taking into account the parasitic capacitances of the system’s major components,such as DC reactors,connecting cables,and DC circuit breakers(DCCBs).Second,four distinct oscillation stages are postulated based on action coordination of MMCs and DCCBs,and the associated analytical equations for the oscillation frequencies are ***,a 200 kV MMC-based DC converter station is subjected to an 6ms/6kA pole-to-pole(PTP)short-circuit *** oscillations have a frequency range of several kHz to several hundreds of *** measured waveforms correspond well with simulated results,including the parasitic ***,the relative errors between the simulated and measured frequencies are less than 5%.

关键词： DC short-circuit fault electromagnetic oscillation MMC-HVDC parasitic parameter wide-band model

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A fast calculation strategy of density function in ISAF reconstruction algorithm

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Science China(Information Sciences) 2013年第9期56卷 182-193页

作者： WANG GongMing zhang Fa CHU qi FAN LiYa SUN Fei LIU ZhiYong Institute of Computing Technology Chinese Academy of Sciences Graduate University of Chinese Academy of Sciences IBM China Research Lab Institute of Biophysics Chinese Academy of Sciences

The ISAF reconstruction algorithm is a new method for reconstructing icosahedral molecules from their projections. This algorithm works in spherical coordinate system and can achieve higher resolution than the traditional Fourier-Bessel algorithm in cylindrical coordinate system; however this method needs huge computations, which limits its application in reality. The main bottleneck lies in the calculation of density function as it occupies 90% running time of the whole algorithm. A fast calculation strategy of density function is proposed to solve this problem. This strategy is composed of three components: the fast calculation method of density function of mesh point in spherical coordinate system, the transformation method of density function of mesh point from spherical coordinate system to Cartesian coordinate system and the fast two-phase mapping method. The time complexity of calculating density function is decreased from O[(LM)8] to O[(LM)7] in our strategy. The experimental results on Psv-F simulated data indicate that the speed of calculating density function is increased almost two orders of magnitude and the speedup of the whole algorithm could reach 30 times. In addition, the speedup could go up with the increase in the number of images and the requirement of accuracy.

关键词： ISAF 3D reconstruction density function spherical coordinate system quaternion interpolation

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Dead lithium formation in lithium metal batteries:A phase field model

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Journal of Energy Chemistry 2022年第8期31卷 29-35,I0002页

作者： Rui zhang Xin Shen Yu-Tong zhang Xia-Lin Zhong Hao-Tian Ju Tian-Xiao Huang Xiang Chen Jun-Dong zhang Jia-qi Huang Advanced Research Institute of Multidisciplinary Science Beijing Institute of TechnologyBeijing 100081China School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical EngineeringTsinghua UniversityBeijing 100084China

Lithium metal batteries are the most promising choices for next-generation high-energy–density batteries. However, there is little mechanism understanding on lithium dendrite growth during lithium plating and the dead lithium(the main component of inactive lithium) formation during lithium stripping. This work proposed a phase field model to describe the lithium stripping process with dead lithium *** coupling of galvanostatic conditions enables the phase field method to accurately match experimental results. The factors influencing the dead lithium formation on the increasing discharge polarization are revealed. Besides, the simulation of the battery polarization curve, the capacity loss peak, and the Coulomb efficiency is realized. This contribution affords an insightful understanding on dead lithium formation with phase field methods, which can contribute general principles on rational design of lithium metal batteries.

关键词： Lithium metal batteries Lithium metal anodes Lithium dendrites Dead lithium Lithium stripping Phase field methods Finite element methods

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Distribution regularity of downwash airflow under rotors of agricultural UAV for plant protection

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International Journal of Agricultural and Biological Engineering 2021年第3期14卷 46-57页

作者： Xin Liu Wei zhang Haiba Fu Xiaoming Fu Liqiang qi College of Engineering Heilongjiang Bayi Agricultural UniversityDaqing 163319China College of Information Technology Heilongjiang Bayi Agricultural UniversityDaqing 163319China

In the plant protection spray operation of UAVs,the process of droplet from formation to sedimentation target is affected by airflow,easy to form uneven *** description of rotor downwash flow field,clarification of velocity vector distribution at different heights of the UAV rotor flow field,simulation of the flow field with high precision,which are the prerequisites for accurately analyzing the droplet deposition distribution in rotor downwash flow *** on CFD method,the detail of rotor flow field was numerically *** LTH-100 single-rotor agricultural UAV as the research object,the three-dimensional solid model of UAV was established,the Reynolds average N-S equation was used as the control equation and the RNGκ-εas the turbulence model to simulate the flow field of UAV in hover and lateral wind conditions,the wind velocity distribution at different altitudes of rotor downwash flow field was *** simulation results of the hover state showed that:In the flow field,the peak velocity appears in a circular distribution below the distal axis of the *** the decrease of height,the peak velocity distribution area showed a tendency to expand gradually after small shrinkage;When the distance from the rotor was not more than 1.5 m,the downwash flow field presented an axisymmetric distribution based on the rotor axis,and the variation rate of velocity in the peak velocity was basically the same,turbulence in downwash flow field made the flow field more complex when the distance from rotor was larger than 2.0 *** this basis,the optimal flight altitude of UAV is 1.5 *** velocity test of the flow field was carried out on a rotor test bench,wind velocities at four altitudes of 0.5 m,1.0 m,1.5 m and 2.0 m were measured to verify the coincidence between the simulated and measured *** test results showed that:the relative error between the measured and simulated values at four measurement heights were between 0.382-0.524,

关键词： aviation plant protection downwash flow field distribution regularity numerical simulation single-rotor UAV

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Cloning and identification of measles virus receptor gene from marmoset cells

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Chinese Science Bulletin 2002年第20期47卷 1679-1687页

作者： Lingyun Li Xin Liu Peng zhang Yipeng qi Ming Cheng Wuhan Univ Inst Virol Wuhan 430072 Peoples R China

The measles virus (MV) strains with mutated hemagglutinin gene (ha) lost the capacity to infect its sensitive host cells (Vero cells), but it may infect the marmoset B-lymphoblastoid cell line B95a. From above, we can presume that there is a novel cellular receptor for those measles virus strains on B95a cells. Using the yeast two-hybrid system, we screened and cloned a novel gene-bip (B-lymphoblastoid interaction protein of marmoset) from B95a cell cDNA library, which encoded a protein interacting with measles virus hemagglutinin protein (Ha). The bip cDNA was 1540 base pairs in length and contained a unique open reading frame (ORF) of 1011 base pairs encoding a transmembrane protein of 337 amino acid residues. The primary structure of amino acids residue is predicted that the Bip comprised a hydrophobic transmembrane domain and a hydrophobic leader region. The researches about the deletion mutants showed that the deletion of transmembrane domain in Bip did not affect the interaction between Bip and

关键词： B95a-derived measles virus isolates hemagglutinin pro-tein (Ha) yeast two-hybrid system hip slam.

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