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Performance of composite foundations with different load transfer platforms and substratum stiffness over silty clay

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Journal of Mountain Science 2024年第5期21卷 1761-1774页

作者： ZHANG shuming LIU Yan YUAN Shengyang LIU Xianfeng jiang Guanlu LIU Junyan School of Civil Engineering and Architecture University of JinanJinan 250022China The Engineering Technology Research Center for Urban Underground Engineering Supporting and Risk Monitoring of Shandong Province Jinan 250022China School of Civil Engineering Southwest Jiaotong UniversityChengdu 610031China Key Laboratory of High-speed Railway Engineering Ministry of EducationSouthwest Jiaotong UniversityChengdu 610031China

The semi-rigid pile-supported composite foundation is widely used in highway projects due to its effectiveness in increasing the bearing capacity and stability of *** is crucial to understand the stress distribution across the embankment width and the behaviour of unreinforced ***,five centrifuge tests were conducted to examine the bearing and deformation behaviours of NPRS(Non-Connected Piled Raft Systems)and GRPS(GeosyntheticReinforced Pile-Supported systems)with varying substratum stiffness,then a comparative analysis was conducted on embankment settlement,pressures underneath the embankments,and axial forces along the *** results indicated that greater substratum stiffness correlates with reduced settlement and deformation at various *** occurring 5 meters from the embankment toe includes settlement in NPRS and upward movement in *** potential sliding surface is primarily located within the embankment in NPRS,whereas it may extend through both the embankment and foundation in *** pile-soil stress ratio and efficiency in NPRS are higher than in GRPS across the *** axial force borne by end-bearing piles is significantly greater than that by floating *** the buried depth increases,the axial force in GRPS initially rises then declines,whereas in NPRS,it remains relatively constant within a certain range before *** study aids in assessing the applicability of composite foundations in complex railway environments and provides a reference for procedural measures under similar conditions.

关键词： Centrifuge modelling Composite foundation Failure mode Load transfer platform Substratum Stiffness Silty clay

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A IMPROVED REGULARIZATION WEAKENING NOISE ALGORITHM BASED ON LOCAL NOISE VARIANCE

A IMPROVED REGULARIZATION WEAKENING NOISE ALGORITHM BASED ON...

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2011 International Conference on Intelligent Computing and Integrated Systems(ICISS 2011)

作者： Zhiqiang Wei 1 Caiyan Duan 2 shuming jiang 1 Jianfeng Zhang 1 Jian Li 1 Shijie Xu 1 Shuai Wang 11 Information Research Institute Shandong Academy of Sciences jinan China 2 R & D Center Shandong luguang connunication engineering CO. LTD jinan China

The presence of noise will affect the image features and image processing effects, and the degraded image will import new random additive noise after the Wiener filter processing. Although the method of improved winner filter can eliminate noise, the restored images will import new noises. We use larger regularization parameter in the larger region of noise, and smaller regularization parameter in the smaller one. The method is called regularization clearing off noise, with satisfied processing result.

关键词： image restoration regularization local variance wiener filter

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WPA1 encodes a vWA domain protein that regulates wheat plant architecture

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The Crop Journal 2024年第4期12卷 992-1000页

作者： Yongxing Chen Huixin Xiao Yuange Wang Wenling Li Lingchuan Li Lingli Dong Xuebo Zhao Miaomiao Li Ping Lu Huaizhi Zhang Guanghao Guo Keyu Zhu Beibei Li Lei Dong Peng Chen shuming Wu Yunbo jiang Fei Lu Chengguo Yuan Zhiyong Liu Yusheng Zhao Qiuhong Wu Institute of Biotechnology Xianghu LaboratoryHangzhou 311231ZhejiangChina Institute of Genetics and Developmental Biology Chinese Academy of SciencesBeijing 100101China College of Advanced Agricultural Sciences University of Chinese Academy of SciencesBeijing 100049China Hebei Gaoyi Stock Seeds Farm Gaoyi 051330HebeiChina

Plant height,spike,leaf,stem and grain morphologies are key components of plant architecture and related to wheat yield.A wheat(Triticum aestivum L.)mutant,wpa1,displaying temperaturedependent pleiotropic developmental anomalies,was *** WPA1 gene,encoding a von Willebrand factor type A(vWA)domain protein,was located on chromosome arm 7DS and isolated by map-based *** functionality of WPA1 was validated by multiple independent EMS-induced mutants and gene *** analysis revealed that WPA1 is monocotyledon-specific in higher *** identification of WPA1 provides opportunity to study the temperature regulated wheat development and grain yield.

关键词： Wheat plant architecture Map-based cloning vWA Environmental temperature

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产气荚膜梭菌污染牛肉的溯源及传播规律分析

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中国兽医学报 2024年第4期44卷 692-698,734页

作者：尹婧夷马迎晖赵术明姜艳芬西北农林科技大学动物医学院陕西杨凌7121002 赤峰市农牧业综合行政执法支队内蒙古赤峰024000

应用脉冲场凝胶电泳(pulsed field gel electrophoresis,PFGE)对从陕西省的3个屠宰场(Ⅰ~Ⅲ场)以及内蒙古的1个屠宰场(Ⅳ场)采集的牛屠宰、分割过程中各环节的样品分离到的138株产气荚膜梭菌(Clostridimn perfringens,***)分离菌株进行... 详细信息

应用脉冲场凝胶电泳(pulsed field gel electrophoresis,PFGE)对从陕西省的3个屠宰场(Ⅰ~Ⅲ场)以及内蒙古的1个屠宰场(Ⅳ场)采集的牛屠宰、分割过程中各环节的样品分离到的138株产气荚膜梭菌(Clostridimn perfringens,***)分离菌株进行基因型区分,通过BioNumerics软件进行条带的识别并对结果进行分析。结果显示,菌株相似度为39.9%~100%,相似度≥50%时可分为15个分支,相似度≥90%时可分为114个基因型;Ⅰ场共55株菌分为50个PFGE基因型,Ⅱ场共36株菌分21个型,Ⅲ场共42株菌分40个型,Ⅳ场共5株菌分4个型;相同PFGE型的相同毒素基因型概率为69%,分离菌株具有遗传多样性和流行相关性;牛肉中的分离菌可追溯至分割环节的工具或人员样品及屠宰环节的粪便、皮毛和空气,粪便及体表携带的菌在屠宰过程中污染胴体,随后进入分割环节,肉样与工具之间交叉污染进一步造成牛肉污染为该菌的传播途径,剥皮和刀具是***污染的关键控制点。结果表明,***突破屠宰环节的细菌防控屏障污染牛肉,因此,必须严格监控牛屠宰分割过程造成交叉污染的关键控制点降低该菌污染牛肉和感染消费者的风险。

关键词：牛肉产气荚膜梭菌脉冲场凝胶电泳遗传多样性交叉污染

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基于ETL技术的多源异构数据融合方法研究

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齐鲁工业大学学报 2024年第4期38卷 18-24页

作者：杨国立姜树明浪潮通用软件有限公司山东济南250101 齐鲁工业大学(山东省科学院)情报研究所山东济南250014

在多源大数据融合阶段处理历年异构的数据时,涉及到多指标和多维度的问题,需要清洗、转换、映射和对齐等操作。相关数据处理工具和方法逐步涌现,但仍难以解决大量数据的交叉融合问题。为此,研究了基于ETL技术的多源异构数据融合方法,分... 详细信息

在多源大数据融合阶段处理历年异构的数据时,涉及到多指标和多维度的问题,需要清洗、转换、映射和对齐等操作。相关数据处理工具和方法逐步涌现,但仍难以解决大量数据的交叉融合问题。为此,研究了基于ETL技术的多源异构数据融合方法,分析了常用的ETL工具和数据融合技术,包括数据抽取、转换、加载工具以及数据处理算法。分析了面向灵活需求、业务交叉较多和实时数据流场景时,遇到的数据源异构、数据结构差异、数据更新频率困难等问题,并从模块化设计、逻辑和参数分离、标准化构件库、轻量级JSON格式的配置文件等方面研究了ETL工具模块化扩展和构件重复使用的方法,以便更好地处理大规模异构数据。解决了多源大数据融合阶段的交叉融合问题,对提高数据处理效率、确保数据质量以及支持更深入的数据分析和决策具有重要意义。

关键词：教育统计数据挖掘转换-抽取-加载软件工程

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Foreword to the Special Issue on the 7th International Conference on Nanomanufacturing(nanoMan2021)

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Nanomanufacturing and Metrology 2022年第4期5卷 325-326页

作者： shuming Yang Zhuangde jiang State Key Laboratory for Manufacturing Systems Engineering Xi’an Jiaotong UniversityXi’an710049China

Global trends towards miniaturization of devices and systems open up many new fields in *** encompasses the synthesis of nanomaterials[1],fabrication of devices[2],nanofeatures for various products and systems,process monitoring and quality control,simulations,characterization methods,and applications of nanoscience and nanotechnologies[3,4,5].All these promote the development of nanomanufacturing.

关键词： synthesis characterization Foreword

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双酚类化合物的生物代谢机理研究进展

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环境化学 2024年第3期43卷 711-721页

作者：赫淑铭潘文筱刘娴傅建捷张爱茜江桂斌国科大杭州高等研究院环境学院杭州310024 中国科学院生态环境研究中心环境化学与生态毒理学国家重点实验室北京100085 中国科学院大学资源与环境学院北京100049

以双酚A(bisphenol A,简称BPA)及其替代物为代表的双酚类化合物(bisphenols,简称BPs)在各种环境介质、食品、消费品以及人类和动物体中被广泛检出,表明BPs存在全球性大规模污染趋势.除了BPs自身毒性外,其在生物体内的转化代谢产物可能... 详细信息

以双酚A(bisphenol A,简称BPA)及其替代物为代表的双酚类化合物(bisphenols,简称BPs)在各种环境介质、食品、消费品以及人类和动物体中被广泛检出,表明BPs存在全球性大规模污染趋势.除了BPs自身毒性外,其在生物体内的转化代谢产物可能具有比母体化合物更复杂的内分泌干扰效应和毒性效应,对于人体生命健康的影响不容小觑.本文就BPs生物代谢的实验和理论计算研究方法及其取得的研究成果等方面进行回顾总结,在分析现有研究存在的问题和不足上对未来的研究重点提出了展望.

关键词：双酚类化合物代谢转化实验研究理论计算化学研究

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整体式副车架液态模锻及其性能

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常州大学学报（自然科学版） 2024年第1期36卷 1-8页

作者：邢书明石洪伟江艳星饶宇北京交通大学机械与电子控制工程学院北京100044 广州和德轻量化成型技术有限公司广东广州210098

液态模锻是铝合金件高性能成型的先进工艺,文章将液态模锻技术用于整体式副车架成型,着重研究液锻工艺方案和液锻副车架性能的均匀性。模拟研究表明,单浇道液锻比设有辅助浇道的液锻汇流位置少、表面质量高、工艺出品率高。试生产发现,... 详细信息

液态模锻是铝合金件高性能成型的先进工艺,文章将液态模锻技术用于整体式副车架成型,着重研究液锻工艺方案和液锻副车架性能的均匀性。模拟研究表明,单浇道液锻比设有辅助浇道的液锻汇流位置少、表面质量高、工艺出品率高。试生产发现,利用广州和德轻量化成型技术有限公司设计制造的HVSC2500T卧式液态模锻机进行A356.2铝合金副车架的单浇道液锻,能够获得完整无缺的副车架,本体取样拉伸强度可达320 MPa,延伸率达11.12%。但是,在远离浇道和存在汇流的位置普遍存在夹渣缺陷,副车架强度和塑性都较低。

关键词：副车架液态模锻力学性能缺陷

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Effect of different molecular weight organic components on the increase of microbial growth potential of secondary effluent by ozonation

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Journal of Environmental Sciences 2014年第11期26卷 2190-2197页

作者： Xin Zhao Hong-Ying Hu Tong Yu Chang Su Haochi jiang shuming Liu Environmental Simulation and Pollution Control State Key Joint Laboratory School of Environment Tsinghua University State Environmental Protection Key Laboratory of Microorganism Application and Risk Control Graduate School at Shenzhen Tsinghua University College of Environment and Resources Inner Mongolia University

Ozonation has been widely applied in advanced wastewater treatment. In this study, the effect of ozonation on assimilable organic carbon （AOC） levels in secondary effluents was investigated, and AOC variation of different molecular weight （MW） organic components was analyzed. Although the removal efflciencies were 47%-76% and 94%-100% for UV2s4 and color at ozone dosage of 10 mg/L, dissolved organic carbon （DOC） in secondary effluents was hardly removed by ozonation. The AOC levels increased by 70%-780% at an ozone dosage range of 1-10 mg/L. AOC increased significantly in the instantaneous ozone demand phase, and the increase in AOC was correlated to the decrease in UV254 during ozonation. The results of MW distribution showed that, ozonation led to the transformation of larger molecules into smaller ones, but the increase in low MW （〈1 kDa） fraction did not contribute much to AOC production. The change of high MW （〉100 kDa and 10-100 kDa） fractions itself during ozonation was the main reason for the increase of AOC levels. Furthermore, the oxidation of organic matters with high MWs （〉 100 kDa and 10-100 kDa） resulted in more AOC production than those with low MWs （1-10 kDa and 〈1 kDa）. The results indicated that removing large molecules in secondary effluents could limit the increase of AOC during ozonation.

关键词： Wastewater reclamation and reuse Ozonation Assimilable organic carbon (AOC)Molecular weight distribution Biological stability

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Fabrication of Nanoscale Step Height Structure Using Atomic Layer Deposition Combined with Wet Etching

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Chinese Journal of Mechanical Engineering 2016年第1期29卷 91-97页

作者： WANG Chenying YANG shuming JING Weixuan REN Wei LIN Qijing ZHANG Yijun jiang Zhuangde State Key Laboratory for Manufacturing Systems Engineering Xi'an Jiaotong University Electronic Materials Research Laboratory Key Laboratory of the Ministry of Education & International Center for Dielectric Research Xi'an Jiaotong University

The current techniques used for the fabrication of nanosteps are normally done by layer growth and then ion beam thinning. There are also extra films grown on the step surfaces in order to reduce the roughness. So the whole process is time consuming. In this paper, a nanoscale step height structure is fabricated by atomic layer deposition （ALD） and wet etching techniques. According to the traceable of the step height value, the fabrication process is controllable. Because ALD technology can grow a variety of materials, aluminum oxide （Al2O3） is used to fabricate the nanostep. There are three steps of Al2O3 in this structure including 8 nm, 18 nm and 44 inn. The thickness of Al2O3 film and the height of the step are measured by anellipsometer. The experimental results show that the thickness of Al2O3 film is consistent with the height of the step. The height of the step is measured by AFM. The measurement results show that the height is related to the number of cycles of ALD and the wet etching time. The bottom and the sidewall surface roughness are related to the wet etching time. The step height is calibrated by Physikaliseh-Technische Bundesanstalt （PTB） and the results were 7.5±1.5 nm, 15.5±2.0 nm and 41.8±2.1 nm, respectively. This research provides a method for the fabrication of step height at nanoscale and the nanostep fabricated is potential used for standard references.

关键词： atomic layer deposition (ALD) wet etching step height

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