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Modeling Near-Field Impulsive Waves Generated by Deformable Landslide Using the HBP Model Based on the SPH Method

Journal of Ocean University of China 2024年第2期23卷 328-344页

作者： WANG Wei WEI Weicheng CHAI Bo XIA Hao WANG Yang DU Juan LIU Jizhixian School of Environmental Studies China University of GeosciencesWuhan 430078China Hubei Key Laboratory of Yangtze Catchment Environmental Aquatic Science Wuhan 430078China Faculty of Engineering China University of GeosciencesWuhan 430074China Research center for geohazards Monitoring and Warning in three gorges Reservoir Wanzhou 404000China

Landslide-generated impulsive waves(LGWs)in reservoir areas can seriously threaten waterway safety as well as hu-man life and properties around the two side *** risk reduction and mitigation of such a hazard require the accurate prediction of near-field wave characteristics,such as wave amplitude and ***,near-field LGW involves complicated fluid-solid ***,the wave characteristics are closely related to various aspects,including the geometry and physical features of the slide,river,and body of ***,the empirical or analytical methods used for rough estimation cannot derive accurate results,especially for deformable landslides,due to their significant geometry changes during the sliding *** this study,the near-field waves generated by deformable landslides were simulated by smoothed particle hydrodynamics(SPH)based on multi-phase *** deformable landslides were generalized as a kind of viscous flow by adopting the Herschel-Bulkley-Papanastasiou(HBP)-based nonNewtonian rheology *** HBP model is capable of producing deformable landslide dynamics even though the high-speed sliding process is *** this study,an idealized experiment case originating from Lituya LGW and a practical case of Gongjiafang LGW were reproduced for verification and *** simulation results of both cases show satisfactory consistency with the experiment/investigation data in terms of landslide movement and near-field impulsive wave characteristics,thus indicating the applicability and accuracy of the proposed ***,the effects of the HBP model’s rheological parameters on the landslide dynamics and near-field wave characteristics are discussed,providing a parameter calibration method along with sug-gestions for further applications.

关键词： deformable landslide impulsive waves near-field SPH nonNewtonian fluids

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MOF-based materials facilitate efficient anaerobic digestion of organic wastes:integrating substrate bioavailability and microbial syntrophism

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Frontiers of Environmental Science & Engineering 2024年第8期18卷 153-157页

作者： Haoyu Liu Ying Xu Xiang Chen Xiankai Wang Hang Wang Xiaohu Dai State Key Laboratory of Pollution Control and Resource Reuse School of Environmental Science and EngineeringTongji UniversityShanghai 200092China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China YANGTZE Eco-Environment Engineering Research center China Three Gorges CorporationWuhan 430010China National Engineering Research center of Eco-Environment Protection for Yangtze River Economic Belt Wuhan 430010China

Anaerobic digestion(AD)of organic waste(OW)for methane production is generally *** of AD systems with traditional materials(e.g.,electroconductive materials)is a current focus of research and has been reported to assist methanogenesis by enhancing the productivity of microbial metabolism among syntrophic *** in the AD of organic wastewater,in which microbial cells come into direct contact with the dissolved substrate,in the complex multiphase AD system of OW,low substrate bioavailability is an inevitable obstacle to microbial syntrophism for ***,we propose that improving substrate bioavailability and microbial syntrophism is a powerful strategy for ensuring material-assisted efficient AD of *** on the above considerations,metal-organic frameworks(MOFs),with their exceptionally high porosity,outstanding multi-functionality,and tuneable structures,have excellent potential for application in multiphase anaerobic systems of OW to integrate substrate bioavailability and microbial syntrophism and drive efficient *** addition,MOFs with designable and tuneable natures have great potential for use in identifying suitable materials for anaerobic systems for different types of OW via machine-learning technologies,thereby effectively enhancing methanogenesis from ***,the sustainable application of MOFs in AD and the corresponding environmental risks warrant further investigation.

关键词： Anaerobic digestion Methane production Biodegradability Functional materials Metal-organic frameworks

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Effectiveness of the“online+offline+practice”trinity teaching model on the learning of junior nursing students:an exploratory study

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Nursing Communications 2024年第12期8卷 1-6页

作者： Cai-Xia Liu Ling Wang center of Clinical Nursing Research China Three Gorges UniversityYichang 443100China The First College of Clinical Medical Science China Three Gorges UniversityYichang 443100China Department of Cardiothoracic Surgery Yi chang Central People’s HospitalYichang 443100China

Background:Surgical Nursing is a main course of nursing specialty and a large course lasting 96 credit *** response to the teaching pain points such as the complicated and boring content of the surgical nursing course and the disconnection between classroom theory and clinical practice,surgical nursing is undergoing a teaching ***:The Surgical Nursing course builds trinity teaching model of“online+offline+practice”and implements teaching reforms by combining the Bridge,Objective,Pre-assessment,Participatory learning,Post-assessment,and Summary(BOPPPS)teaching *** constructed a trinity teaching model,and these teaching reform measures included building an online learning platform,offline case teaching and scenario simulation and hospital and community *** 50 students in the junior year of the undergraduate nursing program in the class of 2020 were used as the study subjects,and the students’comprehensive scores were *** questionnaire was also used to assess students’independent learning ability and to evaluate students’satisfaction with the ***:The students’course pass(≥60 points)rate was 100%,and the excellence(≥80 points)rate was 24.00%.Students’independent learning ability improved,and the scores and total scores of cognitive self-management ability,information ability and learning co-operation ability were significantly better than those of the national norm(P<0.01).The satisfaction of students in the BOPPPS group with classroom teaching was also significantly higher than that of the control ***:The“online+offline+practice”trinity teaching mode can effectively integrate the“Rain Classroom”online platform with the BOPPPS teaching *** guides students to actively participate in classroom thinking and discussion,improves students’independent learning ability,and effectively enhances the effect of classroom teaching.

关键词： BOPPPS Rain Classroom Surgical Nursing teaching

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Probing the Galactic Halo with RR Lyrae *** Radial Velocity Curve Templates of RRc Stars

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Research in Astronomy and Astrophysics 2024年第7期24卷 118-134页

作者： Yue Huang Min Fang Gaochao Liu Xianzhong Zheng Sarah Ann Bird Yang Huang Jianrong Shi Jiangtao Wang Huawei Zhang Haijun Tian Haotong Zhang College of Science China Three Gorges UniversityYichang 443002China center for Astronomy and Space Sciences China Three Gorges UniversityYichang 443002China Purple Mountain Observatory Chinese Academy of SciencesNanjing 210023China School of Astronomy and Space Science University of Science and Technology of ChinaHefei 230026China School of Astronomy and Space Science University of Chinese Academy of SciencesBeijing 100049China CAS Key Laboratory of Optical Astronomy National Astronomical ObservatoriesBeijing 100101China Department of Astronomy School of PhysicsPeking UniversityBeijing 100871China Kavli Institute for Astronomy and Astrophysics Peking UniversityBeijing 100871China School of Sciences Hangzhou Dianzi UniversityHangzhou 310018China

We present radial velocity(RV)curve templates of RR Lyrae first-overtone(RRc)stars constructed with the Mg I b triplet and Hαlines using time-domain Medium-Resolution Survey spectra of seven RRc stars from Large Sky Area Multi-Object Fiber Spectroscopic Telescope(LAMOST)Data Release ***,we derive the relation between the stellar RV curve amplitudes and g-band light curve amplitudes from Zwicky Transient Facility(ZTF)public *** those RRc stars without ZTF g-band light curves,we provide the conversions from the light curve amplitudes in ZTF r-and i-bands,Gaia G-band,and V-band from the All-Sky Automated Survey for Supernovae to those in ZTF *** validate our RV curve templates using the RRc star SV Scl and find the uncertainties of systemic RV are less than 2.11 km s~(-1)and 6.08 km s~(-1)based on the Mg I b triplet and Hαlines,*** calculate the systemic RVs of 30 RRc stars using the RV curve templates constructed with the Mg I b triplet and Hαlines and find the systemic RVs are comparable with each *** RV curve template will be particularly useful for obtaining the systemic RV of RRc using the LAMOST spectroscopy.

关键词： stars variables RR Lyrae-Stars-techniques radial velocities

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Oxalic Acid in Magnaporthe oryzae:Production the Result of Erythroascorbic Acid Oxidation,Metabolism is for Fungal Detoxification

Oxalic Acid in Magnaporthe oryzae:Production the Result of E...

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中国植物病理学会2024年学术年会

作者： LIU Chang WEI Yi DANG Yuejia Wajjiha Batool FAN Xiaoning HU Yan HE Zhengquan ZHANG Shihong The Key Laboratory for Extreme-Environmental Microbiology College of Plant ProtectionShenyang Agricultural University Key Laboratory of three gorges Regional Plant Genetics and Germplasm Enhancement (CTGU)/Biotechnology Research center Three Gorges University

As an essential pathogenic factor,oxalic acid（OA） has been elaborated in several plant pathogens;and researchers are currently pursuing the interference with OA metabolism as a treatment for the related ***,the metabolism route in Magnaporthe oryzae remains *** this study,we described the erythroascorbic acid mediated oxalic acid synthesis and its metabolic and clearance pathways in the rice blast *** OxdC（MoOxdC） is an oxalate decarboxylase that just appears to play a role in relieving the toxicity of oxalica *** of MoOxdC does not affect the growth,conidiophore formation,sporulation,and appressorium formation of ***,antioxidation and pathogenicity are enhanced in Δ*** of MoOxdC increased of oxalate oxidase（MoOxO） expression,which reduced the toxic effect of excess OA in *** increase of Darabino-1,4-lactone oxidase（MoALO1） expression in ΔMooxdc leads to the increase of erythroascorbic acid content and the enhancement of antioxidant *** blocking of OA decarboxylation pathway induced the expression of OA transporter to be up-regulated,which made OA transport and enhanced the pathogenic *** the same time,the loss of OA decarboxylated product-formic acid（FA） leads to the reduction of acetyl-coenzyme A,and the feedback to the TCA cycle is the acceleration of fatty acid β-oxidation pathway,which enhances the utilization capacity of ΔMooxdc to long-chain fatty *** think that the enhancement of antioxidant and pathogenicity capacity of ΔMooxdc a stress response,and this work mainly proves that the formation of OA in *** is actually the product of the removal of HO by erythroascorbic *** the perspective of ATP formation,OA mediates the carbon cycle and ensures the operation of TCA cycle.

关键词： Oxalate decarboxylase(MoOxdC) Magnaporthe oryzae erythroascorbic acid energy metabolism pathogenicity

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Rational manipulation of electrolyte to induce homogeneous SEI on hard carbon anode for sodium-ion battery

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Journal of Energy Chemistry 2024年第7期94卷 414-429页

作者： Lu Liu Lingling Xiao Zhi Sun Shahid Bashir Ramesh Kasi Yonghong Gu Ramesh Subramaniam Research center for Clean Utilization Technology Phosphorous Resources Hubei Three Gorges PolytechnicYichang 443000HubeiChina Department of Physics Faculty of ScienceUniversiti MalayaKuala Lumpur 50603Malaysia UM Power Energy Dedicated Advanced Centre(UMPEDAC) Level 4Wisma R&DUniversiti MalayaKuala Lumpur 59990Malaysia Department of Chemistry Saveetha School of EngineeringInstitute of Medical and Technical ScienceSaveetha UniversityChennai 602105TamilnaduIndia

Sodium-ion batteries (SIBs) have great potential to be the next major energy storage devices due to their obvious advantages and developing advanced electrodes and electrolytes is urgently necessary to promote its future ***,hard carbon as a state-of-the-art anode of SIBs still suffers from the low initial Coulomb efficiency and unsatisfactory rate capability,which could be improved by forming desirable solid electrolyte interphases (SEI) to some ***,the chemistry and morphology of these interfacial layers are fundamental parameters affecting the overall battery operation,and optimizing the electrolyte to dictate the quality of SEI on hard carbon is a key ***,this review summarizes the recent research on SEI design by electrolyte manipulation from solvents,salts,and *** also presents some potential mechanisms of SEI formation in various electrolyte ***,the current advanced characterization techniques for electrolyte and SEI structure analyses have been comprehensively ***,current challenges and future perspectives of SEI formation on hard carbon anode for SIBs are provided from the viewpoints of its compositions,evolution processes,structures,and characterization techniques,which will promote SEI efficient manipulation and improve the performance of hard carbon,and further contribute to the development of SIBs.

关键词： SEI Electrolyte optimization Hard carbon Electrochemical performance Sodium-ion batteries

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An Innovative Finite Element Geometric Modeling of Single-Layer Multi-Bead WAAMed Part

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Computer Modeling in Engineering & Sciences 2024年第3期138卷 2383-2401页

作者： Xiangman Zhou Jingping Qin Zichuan Fu Min Wang Youlu Yuan Junjian Fu Haiou Zhang Seyed Reza Elmi Hosseini College of Mechanical and Power Engineering China Three Gorges UniversityYichang443002China School of Mechanical Science and Engineering Huazhong University of Science and TechnologyWuhan430074China School of Metallurgy and Materials Engineering Iran University of Science and TechnologyNarmakIran

Finite element (FE) coupled thermal-mechanical analysis is widely used to predict the deformation and residualstress of wire arc additive manufacturing (WAAM) parts. In this study, an innovative single-layermulti-bead profilegeometric modeling method through the isosceles trapezoid function is proposed to build the FE model of theWAAMprocess. Firstly, a straight-line model for overlapping beads based on the parabola function was establishedto calculate the optimal center distance. Then, the isosceles trapezoid-based profile was employed to replace theparabola profiles of the parabola-based overlapping model to establish an innovative isosceles trapezoid-basedmulti-bead overlapping geometric model. The rationality of the isosceles trapezoid-based overlapping model wasconfirmed by comparing the geometric deviation and the heat dissipation performance index of the two overlappingmodels. In addition, the FE-coupled thermal-mechanical analysis, as well as a comparative experiment of thesingle-layer eight-bead deposition process show that the simulation results of the above two models agree with theexperimental results. At the same time, the proposed isosceles trapezoid-based overlappingmodels are all straightlineprofiles, which can be divided into high-quality FE elements. It can improve the modeling efficiency andshorten the simulation calculation time. The innovative modeling method proposed in this study can provide anefficient and high-precision geometricmodelingmethod forWAAMpart FE coupled thermal-mechanical analysis.

关键词： WAAM FE coupled thermal-mechanical analysis the isosceles trapezoid-based model residual stress

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Influence of Blended Course Teaching Reform on Student Satisfaction

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Contemporary Social Sciences 2024年第4期9卷 105-121页

作者： Zhang Shuhua Chai Huihua Chen Hongquan College of Business Administration Chongqing Three Gorges University School of Economics and Business Administration Chongqing UniversityShapingbaChongqingChina400044

With the rapid development of information technology in contemporary times,the blended teaching mode that blends online and offline courses has become an international trend in higher *** blended tourism management courses at Chongqing three gorges University as an example,we explored the impact of such teaching reform on student satisfaction based on the SERVPERF *** analysis of 179 valid questionnaires revealed that five elements of the reform,namely,reliability,assurance,valuableness,responsiveness,and empathy,have a significant positive impact on students’learning ***,in the context of blended courses,factors such as a stable and reliable teaching environment,comprehensively guaranteed educational conditions,teaching content that highly aligns with students’demands and value expectations,prompt responses to students’needs and feedback,and empathetic consideration of students’perspectives are critical for enhancing student *** on these conclusions,we propose several strategies and methods for improving the effectiveness of blended teaching in the hope of propelling its continuous improvement and optimization,thus further elevating the quality of higher education.

关键词： blended courses satisfaction influencing factors improvement strategies

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Physics-informed optimization for a data-driven approach in landslide susceptibility evaluation

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第8期16卷 3192-3205页

作者： Songlin Liu Luqi Wang Wengang Zhang Weixin Sun Yunhao Wang Jianping Liu School of Civil Engineering Chongqing UniversityChongqing400045China Key Laboratory of New Technology for Construction of Cities in Mountain Area Chongqing UniversityMinistry of EducationChongqing400045China National Joint Engineering Research center of geohazards Prevention in the Reservoir Areas Chongqing UniversityChongqing400045China Chongqing Field Scientific Observation Station for Landslide Hazards in three gorges Reservoir Area Chongqing UniversityChongqing400045China Chongqing Mingfeng Construction Engineering Co. LtdChongqing405800China

Landslide susceptibility mapping is an integral part of geological hazard ***,the emphasis of many studies has been on data-driven models,notably those derived from machine learning,owing to their aptitude for tackling complex non-linear ***,the prevailing models often disregard qualitative research,leading to limited interpretability and mistakes in extracting negative samples,*** non-landslide *** this study,Scoops 3D(a three-dimensional slope stability analysis tool)was utilized to conduct a qualitative assessment of slope stability in the Yunyang section of the three gorges Reservoir *** depth of the bedrock was predicted utilizing a Convolutional Neural Network(CNN),incorporating local boreholes and building on the insights from prior *** Random Forest(RF)algorithm was subsequently used to execute a data-driven landslide susceptibility *** proposed methodology demonstrated a notable increase of 29.25%in the evaluation metric,the area under the receiver operating characteristic curve(ROC-AUC),outperforming the prevailing benchmark ***,the landslide susceptibility map generated by the proposed model demonstrated superior *** result not only validates the effectiveness of amalgamating mathematical and mechanistic insights for such analyses,but it also carries substantial academic and practical implications.

关键词： Physics-informed Machine learning Bedrock depth Scoops 3D Landslide susceptibility

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Unlocking single-atom catalysts via amorphous substrates

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Nano Research 2024年第5期17卷 3533-3546页

作者： Bohua Sun Mingyuan Xu Xiaoxia Li Baohong Zhang Rui Hao Xiaoyu Fan Binbin Jia Dingshun She School of Engineering and Technology China University of Geosciences(Beijing)Beijing 100083China Zhengzhou Institute China University of Geosciences(Beijing)Zhengzhou 451283China College of Materials and Chemical Engineering Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion MaterialsChina Three Gorges UniversityYichang 443002China School of Chemistry Beihang UniversityBeijing 100191China Chinese Academy of Sciences(CAS)Key Laboratory of Nanosystem and Hierarchy Fabrication CAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing 100190China National Engineering Research center of Nonferrous Metals Materials and Products for New EnergyChina GRINM Group Co.Ltd.Beijing 100088China

Single-atom catalysts(SACs)reveal great potential for application in catalysis due to their fully exposed active *** general,single atoms(SAs)and the coordination substrates need to have strong interactions or charge transfer to ensure the atomic dispersion,which requires the selection of a suitable substrate to stabilize the target *** studies have demonstrated that amorphous materials with abundant defects and coordinatively unsaturated sites can be used as substrates for more efficient capturing SAs,further enhancing the catalytic *** this review,we discuss recent research progress of SAs loaded on amorphous substrates for enhanced catalytic ***,we summarize the commonly used amorphous substrates for stabilizing ***,we present several advanced applications of amorphous SACs in the field of catalysis,including electrocatalysis and *** then,we also clarify the synergistic mechanism between SAs and amorphous substrate on catalytic ***,we summarize the challenges with our personal views and provide a critical outlook on how amorphous SACs continue to evolve.

关键词： single-atoms amorphous substrate synthetic strategy catalysis

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