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Science China(Life Sciences) 2023年第6期66卷 1340-1357页

作者： Weiwei Zheng xing Lv Shiying xin Yuena Sun Tianjun xu Laboratory of Fish Molecular Immunology College of Fisheries and Life ScienceShanghai Ocean UniversityShanghai201306China Laboratory of Marine Biology and Biotechnology Qingdao National Laboratory for Marine Science and TechnologyQingdao266237China Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources Shanghai Ocean UniversityMinistry of EducationShanghai201306China National Pathogen Collection Center for Aquatic Animals Shanghai Ocean UniversityShanghai201306China

Noncoding RNA(ncRNA)is an important regulatory factor that plays a major role in innate ***,most studies on ncRNA have focused on mammals,resulting in a knowledge gap on nc RNA in lower vertebrates such as teleost *** this study,we identified a new long noncoding RNA(lncRNA),termed TAK1-related lnc RNA(TARL),which can play a positive role in the antibacterial immunity of Miichthys miiuy to Vibrio anguillarum and *** also found a novel micro RNA miR-2188-3p that could target TAK1 and inhibit the host antibacterial response and promote bacterial *** further found that the antibacterial effect inhibited by miR-2188-3p could be reversed with ***,*** and *** are the two most susceptible Gram-negative pathogens of aquaculture fish,and the economic losses caused by these two bacteria are immeasurable every *** study is the first to report on the ability of lnc RNA to prevent the escape of *** and *** in fish through the competing endogenous RNA(ceRNA)*** results not only elucidate the ce RNA mechanism of the lncRNA in antibacterial immune responses but also provide new insights into the impact of lnc RNA on host immunity and bacterial escape.

关键词： lncRNA microRNA ceRNA innate immunity antibacterial

Enhanced Flexoelectricity in Barium Titanate-Cellulose Composite Thin Films

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Acta Mechanica Solida Sinica 2024年第4期37卷 521-527页

作者： Wensi xing Hongyu Cao xin Zhang xu Liang Jianwei Song Shengping Shen Chemomechanics and Intelligent Media Laboratory State Key Laboratory for Strength and Vibration of Mechanical StructuresSchool of Aerospace EngineeringXi’an Jiaotong UniversityXi’an710049China

Biopolymers,the potential flexoelectric materials,are environment-friendly,degradable,lightweight,cost-effective,and possess remarkable processing properties catering to the requirements of advanced ***,the flexoelectric coefficient of biopolymers is normally much weaker than that of ceramic materials,limiting their potential applications for designing high-performance green electromechanical coupling *** improve the flexoelectric response in biopolymers,we composited barium titanate(BTO)with 2,2,6,6-tetramethylpiperidine-1-oxyl-oxidized cellulose nanofibrils(TOCNF)to enhance the flexoelectric response of *** to the high permittivity and flexoelectric effect of BTO,the relative dielectric constant and flexoelectric coefficient of 33.3 wt%BTO-TOCNF films reached 30.94@1 kHz and 50.05±1.88 nC/m@1 Hz,which were almost 172 times and 27 times higher than those of TOCNF,*** composite thin film contains high dielectric constant and flexoelectric coefficient,as well as excellent *** study provided a straightforward and efficient method for improving the flexoelectric effect of biopolymers,and demonstrated its great potential applications in flexoelectric-based devices.

关键词： Flexoelectricity Cellulose BaTiO_(3) Composite Thin films

Machine learning-based performance predictions for steels considering manufacturing process parameters:a review

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Journal of Iron and Steel Research International 2024年第7期31卷 1555-1581页

作者： Wei Fang Jia-xin Huang Tie-xu Peng Yang Long Fu-xing Yin Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology School of Materials Science and EngineeringHebei University of TechnologyTianjin 300132China Institute of New Materials Guangdong Academy of ScienceGuangzhou 510651GuangdongChina

Steels are widely used as structural materials,making them essential for supporting our lives and ***,further improving the comprehensive properties of steel through traditional trial-and-error methods becomes challenging due to the continuous development and numerous processing parameters involved in steel *** address this challenge,the application of machine learning methods becomes crucial in establishing complex relationships between manufacturing processes and steel *** review begins with a general overview of machine learning methods and subsequently introduces various performance predictions in steel *** classification of performance pre-diction was used to assess the current application of machine learning model-assisted *** important issues,such as data source and characteristics,intermediate features,algorithm optimization,key feature analysis,and the role of environmental factors,were summarized and *** insights will be beneficial and enlightening to future research endeavors in this field.

关键词： Steel Manufacturing process Machine learning Performance prediction Algorithm

Hydrodynamic Response of A Fully Coupled TLP Hull-TTR System with Detailed Modeling of A Hydraulic Pneumatic Tensioner and Riser Joints

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China Ocean Engineering 2022年第3期36卷 451-463页

作者： HAO Shuai YU Yang YU Jian-xing YUAN Zhi-ming xu Li-xin Maritime College Tianjin University of TechnologyTianjin 300384China State Key Laboratory of Hydraulic Engineering Simulation and Safety Tianjin UniversityTianjin 300072China Tianjin Key Laboratory of Port and Ocean Engineering Tianjin UniversityTianjin 300072China Department of Naval Architecture Ocean&Marine EngineeringUniversity of StrathclydeGlasgow G40LZUK

Tension Leg Platform(TLP)in deepwater oil and gas field development usually consists of a hull,tendons,and top tension risers(TTRs).To maintain its top tension,each TTR is connected with a tensioner system to the *** to the complicated configuration of the tensioners,the hull and TTRs form a strong coupled ***,some simplified tensioner models are applied to analyze the TLP *** is a large discrepancy between their analysis results and the actual mechanism behaviors of a *** is very necessary to develop a more detailed tensioner model to consider the coupling effects between TLP and *** the present study,a fully coupled TLP hull-TTR system for hydrodynamic numerical simulation is established.A specific hydraulic pneumatic tensioner is modeled by considering 4 *** production TTR model is stacked up by specific riser *** simulation is also extended to analyze an array of *** regular and irregular waves are *** behaviors of different cylinders are *** results show that it is important to consider the specific configurations of the tensioner and TTRs,which may lead to obviously different response behaviors,compared with those from a simplified model.

关键词： top tension riser(TTR) fully coupled hull-tendon-TTR-tensioner model hydraulic pneumatic tensioner hydrodynamic response 3D potential flow theory

Synthesis and Crystal Structure of a New Mononuclear Cadmium(Ⅱ) Cryptate Derived from the Condensation of Tri(2-aminoethyl)amine with Glyoxal

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Chinese Journal of Structural Chemistry 2005年第11期24卷 1276-1280页

作者： CHEN Hua xu xing-You GAO Jian YANG xu-Jie LU Lu-De WANG xin Materials Chemistry Laboratory Nanjing Universityof Science and Technology Nanjing 210094 China Department of Chemical Engineering Huahai Institute of Technology Lianyungang 222005 China

A new mononuclear cadmium（Ⅱ） cryptate has been synthesized by [2＋3] Schiff base condensation of tri（2-aminoethyl）amine with glyoxal in the presence of Cd（ClO4）2·6H2O. The crystal structure, spectral characterization and molar conductivity show that cadmium（Ⅱ） is sixcoordinated （N6） into a distorted octahedral geometry.

关键词： mononuclear cadmium cryptate synthesis crystal structure

Optimized energy thresholds in a spectral computed tomography scan for contrast agent imaging

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Nuclear Science and Techniques 2019年第3期30卷 15-27页

作者： Kai-xin Huang Zhi Deng Xiao-Fei xu Yu-Xiang xing Department of Engineering Physics Tsinghua University Key Laboratory of Particle and Radiation Imaging Ministry of Education Tsinghua University

Spectral computed tomography(CT) based on photon counting detectors(PCDs) is a well-researched topic in the field of X-ray imaging. When PCD is applied in a spectral CT system, the PCD energy thresholds must be carefully selected, especially for K-edge imaging, which is an important spectral CT application. This paper presents a threshold selection method that yields better-quality images in K-edge imaging. The main idea is to optimize the energy thresholds ray-by-ray according to the targeted component coefficients, followed by obtaining an overall optimal energy threshold by frequency voting. A low-dose pre-scan is used in practical implementations to estimate the line integrals of the component coefficients for the basis functions. The variance of the decomposed component coefficients is then minimized using the Cramer–Rao lower bound method with respect to the energy thresholds. The optimal energy thresholds are then used to take a full scan and gain better image reconstruction with less noise than would be given by a full scan using the non-optimal energy thresholds. Simulations and practical experiments on imaging iodine and gadolinium solutions, which are commonly used as contrast agents in medical applications, were used to validate the method. The noise was significantly reduced with the same dose relative to the non-optimal energy thresholds in both simulations and in practical experiments.

关键词： Spectral CT Contrast agent imaging Cramer-Rao lower bound Thresholds optimization Kedge

Characterization of Fe5(AsO3)3Cl2(OH)4·5H2O,a new ferric arsenite hydroxychloride precipitated from FeCl3-As2O3-HCl solutions relevant to arsenic immobilization

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Journal of Environmental Sciences 2020年第4期32卷 205-215页

作者： Zidan Yuan xu Ma xing Wu Guoqing Zhang xin Wang Shaofeng Wang Yongfeng Jia Key Laboratory of Pollution Ecology and Environmental Engineering Institute of Applied EcologyChinese Academy of SciencesShenyang 110016China University of Chinese Academy of Sciences Beijing 100049China

Tooeleite(Fe6(As03)4 SO4(OH)4·4 H2 O)is widely precipitated for direct As(III)removal from sulfate-rich industrial ***,whether or not Fe(III)-As(III)-Cl(-I)precipitate is produced in chloridizing leaching media for As immobilization is almost *** work founded the existence of ferric arsenite(hydroxy)chloride as a new mineral for As(III)*** chemical composition and solid characterization were subsequently studied by using scanning electron microscope with an energy dispersive spectrometer(SEM-EDS),X-ray diffraction(XRD),infrared(FT-IR),Raman spectroscopy and thermogravimetric(TG)*** results showed the formation of a yellow precipitate after 3-days reaction of Fe(III)/As(III)with molar ratio≈1.7 in chloride solution at pH 2.3 neutralized with *** with tooeleite,chemical analysis and solid characterization indicated that Cl(-I)replaces S04(-II)producing ferric arsenite hydroxychloride with formula Fe5(As03)3-Cl2(OH)4·5 H2 *** new plate shaped solid showed better crytallinity than tooeleite,although it has similar morphology and characteristic bands to *** FT-IR bands at 628,964 cm-1 and the Raman bands at 448,610,961 cm-1 were assigned to Fe-O or As(Ⅲ)-O-Fe or As(Ⅲ)-O bending/stretching vibration,indicating that both arsenite and chloride substituted for the position of sulfate for ferric arsenite hydro xychloride produced due to the lack of the ***-(I)also contributed to increase As removal efficiency in aqueous sulfate media under acidic pH conditions via the probable formation of sulfatechloride ferric arsenite.

关键词： Chloride ion Acidic pH Ferric arsenite hydroxychloride Characterization Immobilization

Re-Imagining drinking water safety based on 21st century science: Microbial pathogens, emerging contaminants, byproducts, and health risks:Preface

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Journal of Environmental Sciences 2022年第7期34卷 1-2页

作者： Carsten Prasse xin Yang Chao Chen Bin xu xing-Fang Li Department of Environmental Health and Engineering Johns Hopkins UniversityUSA School of Environmental Science and Engineering Sun Yat-sen UniversityChina School of Environment Tsinghua UniversityChina School of Environmental Science and Engineering Tongji UniversityChina Department of Laboratory Medicine and Pathology University of AlbertaCanada

Regulatory and technological solutions to ensure safe drinking water are not keeping up with the scope and severity of drinking water quality problems. Drinking water resources are degrading as a result of agricultura... 详细信息

关键词： wastewater runoff drinking

Inspires effective alternatives to backpropagation:predictive coding helps understand and build learning

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Neural Regeneration Research 2025年第11期20卷 3215-3216页

作者： Zhenghua xu Miao Yu Yuhang Song School of Health Sciences and Biomedical Engineering Hebei University of TechnologyTianjinChina Department of Computer Science University of OxfordOxfordUK

Artificial neural networks are capable of machine learning by simulating the hiera rchical structure of the human *** enable learning by brain and machine,it is essential to accurately identify and correct the prediction errors,referred to as credit assignment(Lillicrap et al.,2020).It is critical to develop artificial intelligence by understanding how the brain deals with credit assignment in neuroscience.

关键词： assignment learning enable

Copper-catalyzed C–H bond functionalization enabled by programmed alternating current

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Science China Chemistry 2025年第01期 10-11页

作者： Zhoumei Tan Kun xu Chengchu Zeng Beijing Key Laboratory of Environmental and Viral Oncology College of Chemistry and Life Science Beijing University of Technology

Synthetic electrochemistry has been selected as one of the Top Ten Emerging Technologies in Chemistry in 2023 by International Union of Pure and Applied Chemistry (IUPAC)[1]. It has emerged as a sustainable platform for organic synthesis and has exhibited a wide range of applications from academia to industry [2]. However, electrosynthesis has been predominantly performed by using direct current (DC).

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