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EXPERIMENTAL STUDY ON A NEW TYPE OF AERATOR IN SPILLWAY WITH LOW FROUDE NUMBER AND MILD SLOPE FLOW

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Journal of Hydrodynamics 2009年第3期21卷 415-422页

作者： SU Pei-lan liAO Hua-sheng qiu yue li Chen-juan State Key Laboratory of Hydraulics and Mountain River Engineering Sichuan University Chengdu 610065 China

Experimental study on aeration characteristics of various aeration devices was conducted in the spillway tunnel of the Pubugou hydropower project, Sichuan Province, China. It is shown by comparison that the new type of aeration device, namely, the aerator with a trapezoidal-shaped slot and a steep-slope section（ATSS）, can avoid water accumulation in the cavity of the aeration device in the project, thus can effectively solve the backwater problems arising from this project and be used for a wide range of different water levels, without any drain facilities. Above the water level of 840 m, the water contained in the cavity can be eliminated completely, which means that the recommended new type of aerator can meet the aeration demands in the spillway of the project with low Froude number and may be of practical significance and of interest to other projects with similar types of aeration devices.

关键词： aeration device a trapezoidal-shaped slot and a steep-slope section(ATSS) air entrainment cavitation

Influence of the mechanical properties of materials on the ultimate pressure-bearing capability of a pressure-preserving controller

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Petroleum Science 2024年第5期21卷 3558-3574页

作者： Xiao-Jun Shi He-Ping Xie Cong li Gui-Kang liu Zi-Jie Wei Tian-Yu Wang Ju li qiu-yue li State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering College of Water Resource and HydropowerSichuan UniversityChengdu610065SichuanChina Guangdong Provincial Key Laboratory of Deep Earth Sciences and Geothermal Energy Exploitation and Utilization Institute of Deep Earth Sciences and Green EnergyCollege of Civil and Transportation EngineeringShenzhen UniversityShenzhen518060GuangdongChina College of Mechanical Engineering Sichuan UniversityChengdu610065SichuanChina Jinshi Drilltech Co.Ltd. Tangshan063004HebeiChina

The pressure-preserving controller is the core part of deep in-situ pressure-preserving coring(IPP-Coring) system, and its pressure-preserving capability is the key to IPP-Coring technology. To achieve a good understanding of the influence of mechanical properties of materials on the ultimate pressure-bearing capability(UPB-Capability) of the pressure-preserving controller, the IPP-Coring experimental platform was developed to test the UPB-Capability of pressure-preserving controllers of four different materials. The experimental results show that the UPB-Capability of pressure-preserving controllers with different material varies greatly. A numerical model of the pressure-preserving controller was developed to study the influences of mechanical parameters of materials on the UPB-Capability of the pressurepreserving controller after the accuracy of the numerical model is verified by experiments. The results indicate that the yield strength(YS) and Poisson's ratio(PR) of the material have little effect on the UPB-Capability of the pressure-preserving controller, whereas the elastic modulus(EM) of the material has a significant effect. A generalized model of the UPB-Capability of the pressure-preserving controller is developed to reveal the mechanism of the influence of material properties on the UPB-Capability of the pressure-preserving controllers. Considering these results, the future optimization direction of the pressure-preserving controller and material selection scheme in practical engineering applications of the pressure-preserving controller are suggested.

关键词： In-situ pressure-preserving coring Pressure-preserving controller Material properties Ultimate pressure-bearing capability

Effects of Coiling Temperature on Strength,Yield Ratio and Precipitation Behaviors of Hot Rolled High Strength Microalloyed Steel for Cold Forming

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Journal of Iron and Steel Research International 2011年第S1期18卷 572-575页

作者： XU Jian-qiu,JIA yue-cai,li Hua-long [Institute of Research of Iron and Steel (IRIS),Sha Steel,Zhangjiagang215625,Jiangsu,China] Inst Res Iron & Steel IRIS Zhangjiagang 215625 Jiangsu Peoples R China

Various hot rolling schedules were applied to a Nb,V,Ti contained HSLA *** temperature had crucial effects on not only yield strength,but also yield ratio and precipitation behavior.600Mpa yield strength is achieved when coiled at 450℃,which is 100Mpa higher than those coiled at 570℃.However,the low coiling temperature had adverse effect to increase yield ratio,which increased from 0.78 to 0.88 as coiling temperature dropped from 570℃ to 450℃.High resolution SEM analysis shows that sizes of Nb,V,Ti precipitates are affected by coiling *** (Nb,Ti)(C,N) precipitates up to 5μm are observed at higher coiling temperature and to decrease tensile strength,where high coiling temperature corresponds to low cooling *** strong cooling and coiling capacity of Shasteel’s 1450mm width hot rolling mill,these results indicate that strength and formability of the steel can be balanced when coiling temperature has been *** and microalloying costs can be reduced by efficiently utilizing the capacity of rolling *** inclusions are found to act as nucleus for Nb,V,Ti precipitates,contributing to coarsening of precipitates.

关键词： coiling temperature strength yield ratio precipitates inclusions

Magnetic and magnetocaloric effect in a stuffed honeycomb polycrystalline antiferromagnet GdInO_(3)

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Chinese Physics B 2022年第6期31卷 656-662页

作者： Yao-Dong Wu Wei-Wei Duan qiu-yue li Yong-liang Qin Zhen-Fa Zi Jin Tang Universities Joint Key Laboratory of Photoelectric Detection Science and Technology in Anhui Province Anhui Province Key Laboratory of Simulation and Design for Electronic Information Systemand School of Physics and Materials EngineeringHefei Normal UniversityHefei 230601China Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions High Magnetic Field LaboratoryHFIPSAnhuiChinese Academy of SciencesHefei 230031China University of Science and Technology of China Hefei 230026China

The magnetic and magnetocaloric properties were studied in a stuffed honeycomb polycrystalline antiferromagnet GdInO_(3).The onset temperature of antiferromagnetic ordering was observed at~2.1 *** thermal and magnetic hystereses suggest a reversible magnetocaloric effect(MCE)in the GdInO_(3) *** the magnetic field changes of 0 kOe-50 kOe and 0 kOe-70 kOe,the maximum magnetic entropy change values are 9.65 J/kg·K and 18.37 J/kg·K,respectively,near the liquid helium temperature,with the corresponding relative cooling power values of 115.01 J/kg and211.31 J/*** MCE investigation of the polycrystalline GdInO_(3) serves to illuminate more exotic properties in this frustrated stuffed honeycomb magnetic system.

关键词： GdInO_(3) magnetization magnetocaloric effects stuffed honeycomb antiferromagnet

Splenic Infarction as Starting Symptom in Minimal Change Nephropathy

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Chinese Medical Journal 2017年第5期130卷 621-622页

作者： qiu-yue li Yu-Juan Yang Qin-Kai Chen Department of Nephrology The First Affiliated Hospital of Nanchang University Nanchang Jiangxi 330006 China

To the Editor： A 17-year-old Chinese male patient without any medical history presented to The First Affiliated Hospital of Nanchang University. His initial symptoms were abdominal pain and progressive edema. The pai... 详细信息

关键词： Splenic Symptom Nephropathy

Unlocking the stable interface in aqueous zinc-ion battery with multifunctional xylose-based electrolyte additives

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Journal of Energy Chemistry 2025年第1期100卷 770-778页

作者： Xiaoqin li Jian Xiang Lu qiu Xiaohan Chen Yinkun Zhao Yujue Wang Qu yue Taotao Gao Wenlong liu Dan Xiao Zhaoyu Jin Panpan li Institute for Advanced Study Chengdu University School of Mechanical Engineering Chengdu University College of Food and Biological Engineering Chengdu University Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China College of Materials Science and Engineering Sichuan University

The growth of dendrites and the side reactions occurring at the Zn anode pose significant challenges to the commercialization of aqueous Zn-ion batteries（AZIBs）. These challenges arise from the inherent conflict between mass transfer and electrochemical kinetics. In this study, we propose the use of a multifunctional electrolyte additive based on the xylose（Xylo） molecule to address these issues by modulating the solvation structure and electrode/electrolyte interface, thereby stabilizing the Zn anode. The introduction of the additive alters the solvation structure, creating steric hindrance that impedes charge transfer and then reduces electrochemical kinetics. Furthermore, in-situ analyses demonstrate that the reconstructed electrode/electrolyte interface facilitates stable and rapid Zn2+ion migration and suppresses corrosion and hydrogen evolution reactions. As a result, symmetric cells incorporating the Xylo additive exhibit significantly enhanced reversibility during the Zn plating/stripping process, with an impressively long lifespan of up to 1986 h, compared to cells using pure ZnSO4electrolyte. When combined with a polyaniline cathode, the full cells demonstrate improved capacity and long-term cyclic stability. This work offers an effective direction for improving the stability of Zn anode via electrolyte design, as well as highperformance AZIBs.

关键词： Solvation

WAVE PROPAGATION IN PIEZOELECTRIC LAYERED STRUCTURE WITH FLEXOELECTRIC EFFECT TAKEN INTO CONSIDERATION

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WAVE PROPAGATION IN PIEZOELECTRIC LAYERED STRUCTURE WITH FLE...

5-mRNA-based prognostic signature of survival in lung adenocarcinoma

2016年全国压电和声波理论及器件应用研讨会

作者： Feng-yu JIAO Pei-jun WEI yue-qiu li Department of applied mechanics University of Science and Technology Beijing Department of applied mathmatics Qiqihar University

Background, Motivation and Objective In the classical piezoelectric elastic theory, the stress at a piezoelectric material point is assumed to be dependent upon the strain and electric field at same piezoelectric material point, and no characteristic length is included in the constitutive relations. Therefore, the classical piezoelectric elastic theory cannot describe the mechanical and electrical behave of piezoelectric material at the micro or nano scale and size effects. The find of the flexoelectric effects in piezoelectric solids and the potential applications at nanoscale electromechanical system make the investigation of acoustic wave propagation in the piezoelectric solid with the flexoelectric effects taken into consideration necessary. The influences of the flexoelectric effects on the wave propagation mode and the dispersive relations of these waves are therefore interesting. Statement of Contribution/Methods The reflection and transmission phenomenon of acoustic propagation at a piezoelectric half-space and through layered structure are considered. The piezoelectric solids are modeled by the generalized elastic theory with the strain gradient terms included in the constitutive relations to reflect the flexoelectric effects. Due to the flexoelectric effects, there are five kinds of wave propagation modes appeared instead of three propagation modes in the classic piezoelectric solids. Not only that, the traditional surface tractions should be modified as the monopolar surface tractions and the dipolar surface tractions. Accordingly, the traditional surface/interface conditions are replaced by the new surface/interface conditions when the flexoelectric effects are taken into consideration. Results Two boundary conditions(traction-free and electrically shorted/charge-free) and interface conditions with mechanically and dielectrically perfect and imperfect are considered in the present work. The amplitude ratios and energy flux ratios of the reflection waves

关键词： Flexoelectric effect Dipolar traction Strain gradient Reflection and transmission Energy flux ratio

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World Journal of Clinical Oncology 2023年第1期14卷 27-39页

作者： Qian-lin Xia Xiao-Meng He Yan Ma qiu-yue li Yu-Zhen Du Jin Wang Laboratory Medicine Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200233China Scientific Research Center Shanghai Public Health Clinical CenterFudan UniversityShanghai 201508China

BACKGROUND Lung adenocarcinoma(LUAD)is the most common non-small-cell lung cancer,with a high incidence and a poor *** To construct effective predictive models to evaluate the prognosis of LUAD *** In this study,we thoroughly mined LUAD genomic data from the Gene Expression Omnibus(GEO)(GSE43458,GSE32863,and GSE27262)and the Cancer Genome Atlas(TCGA)datasets,including 698 LUAD and 172 healthy(or adjacent normal)lung tissue *** regression and LASSO regression analyses were used to screen differentially expressed genes(DEGs)related to patient prognosis,and multivariate Cox regression analysis was applied to establish the risk score equation and construct the survival prognosis *** operating characteristic curve and Kaplan-Meier survival analyses with clinically independent prognostic parameters were performed to verify the predictive power of the model and further establish a prognostic *** A total of 380 DEGs were identified in LUAD tissues through GEO and TCGA datasets,and 5 DEGs(TCN1,CENPF,MAOB,CRTAC1 and PLEK2)were screened out by multivariate Cox regression analysis,indicating that the prognostic risk model could be used as an independent prognostic factor(Hazard ratio=1.520,Plidation of the model confirmed that the prediction model had good sensitivity and specificity(Area under the curve=0.754,0.737).Combining genetic models and clinical prognostic factors,nomograms can also predict overall survival more *** A 5-mRNA-based model was constructed to predict the prognosis of lung adenocarcinoma,which may provide clinicians with reliable prognostic assessment tools and help clinical treatment decisions.

关键词： Lung adenocarcinoma Differentially expressed genes Prognostic signature Risk score Nomogram

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江苏省耕地资源压力测算及调控对策

测绘科学 2013年第6期38卷 55-57页

作者：岳秋丽白明哲宿迁学院五系江苏宿迁223800 中国矿业大学环测学院江苏徐州221008

本文采用最小人均耕地面积和耕地压力指数两个指标对江苏省总耕地压力进行测算，分别选取4个人均粮食需求量水平对江苏省13个地市2005年～2009年间的耕地压力进行测算，在综合考虑时间、空间和生活水平3个维度基础上把13个地市划分为3... 详细信息

本文采用最小人均耕地面积和耕地压力指数两个指标对江苏省总耕地压力进行测算，分别选取4个人均粮食需求量水平对江苏省13个地市2005年～2009年间的耕地压力进行测算，在综合考虑时间、空间和生活水平3个维度基础上把13个地市划分为3个地带，并针对不同地带耕地压力特征，分别提出进行耕地利用、保护和管理的对策及调控措施。

关键词：耕地资源最小人均耕地面积耕地压力指数调控对策江苏省