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Journal of Iron and Steel Research International 2016年第10期23卷 1020-1027页

作者： dian-tao ZHANG Zhen LI Yun-xiang TONG Yu-feng ZHENG Li LI Key Laboratory of Superlight Material and Surface Technology(Ministry of Education) Harbin Engineering University Center for Biomedical Materials and Engineering Harbin Engineering University Department of Materials Science and Engineering College of EngineeringPeking University

The influences of die parameters on shear strain were investigated by using two-dimensional finite element *** formulas of shear strain were *** to the results of formulas,the shear strain showed a linear dependence on the difference between internal and external fillet radius and the slope was determined by the intersection *** simulation results indicated that the velocities of the points from different zones were different in the specimen and the motion trajectories of different points did not follow geometrical *** influences of the average velocity and the motion trajectory on shear strain were incorporated in the formula to calculate the shear strain produced during equalchannel angular pressing *** reliability of simulation results has been partially validated by experiments.

关键词： equal channel angular pressing finite element method shear strain velocity motion trajectory

Prospects of elafibranor in treating alcohol-associated liver diseases

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World Journal of Gastroenterology 2025年第2期31卷 132-137页

作者： Wei-Tong Cui Hua-Ru Xue dian-Fang Wei Xiao-Yu feng Kai Wang School of Basic Medicine Qilu Medical UniversityZibo 255300Shandong ProvinceChina School of Medical Imaging Qilu Medical UniversityZibo 255300Shandong ProvinceChina

Alcohol-related liver disease(ALD),which is induced by excessive alcohol con-sumption,is a leading cause of liver-related morbidity and *** pa-tients exhibit a spectrum of liver injuries,including hepatic steatosis,inflam-mation,and fibrosis,similar to symptoms of nonalcohol-associated liver diseases such as primary biliary cholangitis,metabolic dysfunction-associated steatotic liver disease,and nonalcoholic *** has been approved for the treatment of primary biliary cholangitis and has been shown to improve symptoms in both animal models and in vitro cell models of metabolic dysfunc-tion-associated steatotic liver disease and nonalcoholic ***,the efficacy of elafibranor in treating ALD remains *** this article,we comment on the recent publication by Koizumi et al that evaluated the effects of elafibranor on liver fibrosis and gut barrier function in an ALD mouse *** findings indicate the potential of elafibranor for ALD treatment,but further experimental investigations and clinical trials are warranted.

关键词： Elafibranor Alcohol-associated liver diseases Peroxisome proliferator-activated receptor Lipid Apoptosis Steatosis Inflammation Fibrosis

MDA-Based 3G Service Creation Approach and Telecom Service Domain Meta-Model

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The Journal of China Universities of Posts and Telecommunications 2006年第2期13卷 54-60页

作者： qiao Xiu-quan LI Xiao-feng LI Yan State Key Laboratory of Networking and Switching Beijing University of Posts and Telecommunications Beijing 100876 P. R. China

This paper presents a model-driven 3G service creation approach based on model driven architecture technology. The focus of the paper is the methodology of designing telecommunication service-related meta-model and its profile implementation mechanism. This approach enhances the reusability of applications through separation of service logic models from concrete open application programming interface technologies and implementation technologies.

关键词： 3G service creation environment MDA meta-model UML profile

Gluon-pair-creation production model of strong interaction vertices

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Chinese Physics C 2020年第9期44卷 53-61页

作者： Bing-Dong Wan Cong-feng qiao School of Physics University of Chinese Academy of ScienceYuquan Road 19ABeijing 10049China CAS Center for Excellence in Particle Physics Beijing 10049China

By studying theηc exclusive decay to double glueballs,we introduce a model to phenomenologically mimic the gluon-pair-vacuum interaction vertices,namely the 0^++*** on this model,we study glueball production in pseudoscalar quarkonium decays,explicitlyηc→f0(1500)η(1405),ηb→f0(1500)η(1405),andηb→f0(1710)η(1405)*** them f0(1500)and f0(1710)are well-known scalars possessing large glue components,whileη(1405)is a potential candidate for a pseudoscalar *** preliminary calculation results indicate that these processes are marginally accessible in the presently running experiments BES III,BELLE II,and LHCb.

关键词： glueball production nonperturbative methods quarkonium decays

Excess properties and spectroscopic studies for binary system polyethylene glycol 600 + dimethyl sulfoxide at T =(298.15, 303.15,308.15, 313.15, and 318.15) K

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Chinese Journal of Chemical Engineering 2017年第9期25卷 1249-1255页

作者： Liang Ma feng Sha Xianshu qiao Qiang Li Jianbin Zhang College of Chemical Engineering Inner Mongolia University of Technology

The work presents density(ρ) and viscosity(η) data of binary system polyethylene glycol 600(PEG) + dimethyl sulfoxide(DMSO) over the entire concentration range at T =(298.15, 303.15, 308.15, 313.15 and 318.15) K and atmospheric pressure. On the basis of density and viscosity values, the excess properties of PEG(1) + DMSO(2) mixtures, including excess molar volume(V_m^E), viscosity deviation(Δη), excess free energies of activation(ΔG^(*E)), and isobaric thermal expansion coefficient(αp), were calculated. At the same time, in order to conjecture the density viscosity under different conditions, the density and viscosity data were fitted with the corresponding formula. The calculated results of V_m^E, Δη, and ΔG^(*E) were fitted with the Redlich–Kister equation to derive coefficients and estimate the standard deviations(σ) between the experimental and calculated values. Moreover, the intermolecular interaction of PEG with DMSO was discussed on the basis of FTIR and UV–Vis spectral results of PEG(1) + DMSO(2) mixtures. The results indicated that there were the hydrogen bonding and interactions of hydroxyl hydrogen atoms in PEG with oxygen atoms in DMSO.

关键词： Density Viscosity Excess property PEG600 Dimethyl sulfoxide

De novo design of transmembrane nanopores

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Science China Chemistry 2022年第11期65卷 2122-2143页

作者： Dan qiao Yuang Chen Haojing Tan Ruhong Zhou Jiandong feng Laboratory of Experimental Physical Biology Department of ChemistryZhejiang UniversityHangzhou 310027China Institute of Quantitative Biology College of Life SciencesZhejiang UniversityHangzhou 310058China Zhejiang Lab Hangzhou 31000China

Transmembrane nanopores are structurally stable and biocompatible, and have various applications in molecular sensing and selective transport. The relationship between the function and structure is crucial for transmembrane nanopores, but it is still challenging to design and precisely tune the structure of conventional protein nanopores from scratch, albeit of abundant previous work on natural and bioengineered transmembrane protein nanopores. Therefore, numerous types of artificial transmembrane nanopores that can be de novo designed are rapidly under development, such as molecular nanopores, peptide nanopores, and DNA origami nanopores. In this review, we compare different building blocks of “bottom-up” built nanopores in terms of construction methods, structures and applications, and also describe important advances in de novo designed proteins from the perspective of theoretical simulations as well as an outlook for artificial intelligence-assisted nanopore design.

关键词： nanopores de novo design macrocycle DNA origami protein design

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Torsion Instability of Anisotropic Cylindrical Tissues with Growth

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Acta Mechanica Solida Sinica 2019年第5期32卷 621-632页

作者： Sang Ye Si-Fan Yin Bo Li Xi-qiao feng Institute of Biomechanics and Medical Engineering AMLDepartment of Engineering MechanicsTsinghua UniversityBeijing 100084China

Growth shapes soft tissues not only through mass addition or volume expansion but also through deformation instabilities and consequent morphological *** this paper,we probe the torsion instability of an anisotropically growing tube with fiber reinforcement,which mimics many tubular organs in animals or *** derive the Stroh formulation for the incremental boundary value problem and numerically solve it using the surface impedance method.A linear st ability analysis is conducted to investigate the critical condition for the onset of *** thresholds of helical wrinkling are calculated in terms of growth ratio and external *** effect of fibers on the critical state under axial stretching is *** is found that the tangential growth tends to enhance the critical torsion angle but has a weak influence on the critical longitudinal mode of wrinkling,which,however,can be remarkably affected by the axial *** study can help understand the formation of helical morphologies in biological mat erials and provide cues for engineering desired st ruc tu res or devices.

关键词： Biological material Tube Growth Instability Stroh formulation

Deformation characteristics of ultra-deep circular shaft in soft soil:A case study

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Underground Space 2024年第3期16卷 239-260页

作者： Yafei qiao feng Xie Zhanwei Bai Jiafeng Lu Wenqi Ding Department of Geotechnical Engineering College of Civil EngineeringTongji UniversityShanghai 200092China Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education Tongji UniversityShanghai 200092China Engineering Project Management Company Shanghai Chengtou Water GroupShanghai 200002China SGIDI Engineering Consulting(Group)Co. Ltd.Shanghai 200093China

A circular shaft is often used to access a working well for deep underground space *** the depth of underground space increases,the excavation depth of the shaft *** this study,the deformation characteristics of a circular shaft with a depth of 56.3 m were presented and *** main monitoring contents included:(1)wall deflection;(2)vertical wall movement;(3)horizontal soil movement;(4)vertical surface movement;and(5)basal ***,the maximum wall deflection was only 7.7 *** with the wall deflection data collected for another 29 circular excavations,the ratio of maximum wall deflection to excavation depth of this shaft was smaller due to a smaller ratio of diameter to excavation *** wall deflection underwent two stages of deformation:the first stage was mainly circumferential compression caused by the mutual extrusion of joints between walls,and the second stage was typical vertical deflection *** horizontal soil movement outside the shaft was greater than the wall deflection and the deep soil caused great horizontal movement because of dewatering at confined water ***,a basal heave of 203.8 mm occurred in the pit centre near the ***,the shaft was uplifted over time and showed 3 stages of vertical *** surface outside the shaft exhibited settlement and uplift deformation at different locations due to different *** basal heave caused by excavation was the dominant factor,driving the vertical movement of the shaft as well as the surrounding *** correlation between the wall deflection and the surface settlement outside the shaft was weak.

关键词： Circular shaft Site monitoring Deflection Vertical deformation Soft soil

In situ tracking anisotropic photocarrier dynamics in two-dimensional ternary Ta_(2)NiSe_(5) via digital micromirror device-based pump-probe microscopy

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Photonics Research 2024年第9期12卷 1918-1926页

作者： BINGXU CHEN JIE qiao FEI HAN FU feng SHIH-CHI CHEN Department of Mechanical and Automation Engineering The Chinese University of Hong KongHong KongChina Zhejiang Lab Research Center for Humanoid SensingHangzhou 311100China

In two-dimensional(2D)material studies,tracking the anisotropic ultrafast carrier dynamics is essential for the development of optoelectronic ***,the anisotropic optical and electronic properties are investigated via either polarization-dependent Raman spectroscopy or field-effect transistors ***,study of the anisotropic transient carrier behaviors is still challenging,due largely to the lack of picosecond-resolved acquisition or programmable scanning capabilities in the current characterization *** this work,we select Ta_(2)NiSe_(5) as a model system to investigate the ultrafast anisotropic transportation properties of photo-excited carriers and transient polarized responses via a digital micromirror device(DMD)-based pumpprobe microscope,where the probe beam scans along the armchair and zigzag directions of a crystal structure via binary holography to obtain distinct carrier diffusion coefficients,*** results reveal the nonlinear diffusion behaviors of Ta_(2)NiSe_(5) in tens of picoseconds,which are attributed to the interplay between excited electrons and *** trend of the measured local polarization-dependent transient reflectivity is consistent with the polarized Raman spectra *** results show that the DMD-based pump-probe microscope is an effective and versatile tool to study the optoelectronic properties of 2D materials.

关键词： anisotropic mirror transient

Review on the Progress and Issues in Liquid Tank Sloshing of Ships

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China Ocean Engineering 2023年第5期37卷 709-724页

作者： ZHANG Zhen TAO Ai-feng WU qiao-rui XIE Yong-he Key Laboratory of Ministry of Education for Coastal Disaster and Protection Hohai UniversityNanjing 210098China College of Harbor Coastal and Offshore EngineeringHohai UniversityNanjing 210098China College of Naval Architecture and Maritime Zhejiang Ocean UniversityZhoushan 316022China

With the development of large liquid cargo ships,liquid tank sloshing has gradually become a hot research topic in the area of shipping and ocean *** tank sloshing,characterized by strong nonlinearity and randomness,not only affects the stability of the ship but also generates a huge impact force on the wall of the *** further investigate liquid tank sloshing,a comprehensive review is given on the research process of the most focused subjects of liquid *** the existing research will help to identify issues in the current field and provide useful *** methods for investigating sloshing,the research progress and the situations worldwide are *** advantages and defects of experiments and numerical simulations are also *** problems which need to be explored in the future are subsequently proposed.

关键词： naval architecture and marine engineering liquid tank sloshing liquid cargo ship large deformation progress review