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敏感环境下地下水池基坑围护施工技术

山西建筑 2025年第2期51卷 68-71,81页

作者：苏宇上海市水务建设工程安全质量监督中心站上海200237

杨树浦水厂深度处理改造工程具有地质条件复杂、场地工况敏感、施工组织及环境保护要求高等特点。结合周边建筑物密集,且离运营中的文保工业建筑最近距离仅为15 m的特点,从支撑选型、回填及降水、土方开挖等方面介绍了敏感环境下地下水... 详细信息

杨树浦水厂深度处理改造工程具有地质条件复杂、场地工况敏感、施工组织及环境保护要求高等特点。结合周边建筑物密集,且离运营中的文保工业建筑最近距离仅为15 m的特点,从支撑选型、回填及降水、土方开挖等方面介绍了敏感环境下地下水池处理改造基坑围护施工技术,有效地保障了重大工程的高效、安全实施,为今后类似环境下地下结构建造涉及到的基坑施工提供了借鉴和参考。

关键词：硬咬合排桩复杂地质文保建筑双C环形支撑基坑开挖工期高效

THEORETICAL ANALYSIS OF A HIGH-MACH-NUMBER DILUTE INELASTIC GAS IMpINGING ON A SURFACE

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Acta Mathematica Scientia 2010年第2期30卷 633-644页

作者： yu Hui Deng jonathan j. Wylie Qiang Zhang Department of Mathematics City University of Hong Kong 83 Tat Chee Avenue Kowloon Tong Hong Kong China Center for applied Mathematics and Statistics New Jersey Institute of Technology Newark NJ 07102 U.S.A.

We consider a problem of a 2-dimensional high-Mach-number dilute inelastic gas originating from infinity impinging on an oblique surface of infinite length. By analyzing probabilities of particle-particle collisions, we derive an analytical formula for the mean force experienced by the surface when the system is dilute. We also derive conditions for the validity of our theory.

关键词： dilute inelastic gas high-Mach-number force

Inclusion Modification with Mg Treatment for 35CrNi3MoV Steel

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journal of Materials Science & Technology 1998年第1期14卷 53-56页

作者： Fu, j yu, YG Wang, AR Chen, Bp Sun, WS Univ Sci & Technol Beijing Beijing 100083 Peoples R China Inner Mongolia Met Mat Res Inst Baotou 014034 Peoples R China

The effects of Mg on the inclusion characteristics of 35CrNi3MoV steel have been studied. The results show that Mg treatment reduces obviously the amount of inclusion in the steel. Magnesium and oxygen in liquid steel form dispersed fine particles of MgO, to which other oxides or sulphides nucleated at heterogeneity and grown during solidification. In this way the inclusions are modified. The small spherical inclusions containing MgO have been observed in the Mg treated steel in contrast to the large angular inclusions with Al2O3 in the conventional steel. Especially the elongated MnS inclusion is replaced by small MgS . MgO or MgS. MnS . MgO complex inclusion. The formation of inclusions have been discussed.

关键词： Steel metallurgy

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World journal of Clinical Cases 2025年第6期13卷 24-29页

作者： Wen-jin yuan Yi-juan Zheng Bing-Rong Zhang Yi-jie Lin You Li Yan-Yan Qiu Xue-ping yu Department of Infection Disease Clinical Medical Research Center for Bacterial and Fungal Infectious Diseases of Fujian provinceFujian Medical University Affiliated First Quanzhou HospitalQuanzhou 362000Fujian ProvinceChina

BACKGROUND Hydroxyurea,an antimetabolite,is frequently prescribed for various hemato-logical disorders,and its common side effects include gastrointestinal problems,cutaneous or mucosal lesions and pyrexia/*** SUMMARY This study reports the case of a 67-year-old woman who developed recurrent abdominal pain after 10 years of continuous hydroxyurea therapy for primary *** revealed an ileocecal *** discontinuing hydroxyurea therapy for 6 months,follow-up colonoscopy showed a significant reduction in the *** We consider cecal ulcers as a rare complication of hydroxyurea therapy which typically resolves upon stopping the drug.

关键词： Hydroxyurea Ulcer Abdominal pain Thrombocythemia Colonoscopy Case report

Double heterogeneous structures induced excellent strength-ductility synergy in Ni_(40)Co_(30)Cr_(20)Al_(5)Ti_(5) medium-entropy alloy

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journal of Materials Science & Technology 2024年第14期181卷 176-188页

作者： A.X.Li X.S.Liu R.Li S.B.yu M.H.jiang j.S.Zhang C.N.Che D.Huang p.F.yu G.Li State Key Laboratory of Metastable Materials Science and Technology Yanshan UniversityQinhuangdao 066004China

The application of single-phase face-centered cubic(FCC)medium entropy alloys(MEAs)in the engi-neering industry is often hindered by the challenge of insufficient *** this study,a novel non-equiatomic ratio Ni_(40)Co_(30)Cr_(20)Al_(5)Ti_(5)MEA was successfully *** the well-designed mechan-ical heat treatment processing,we introduced a heterogeneous grain structure comprising 67.4%fine grain and 32.6%coarse ***,heterogeneous size L12 phases consisting of 18.7%submicron precip-itates and 11.7%nano-sized precipitates,were incorporated into the *** tests conducted at room temperature revealed that the double heterogeneous structure alloy demonstrated remarkable strength–ductility *** exhibited a yield strength of 1200 Mpa,an ultimate tensile strength of 1560 Mpa and a total elongation of 33.6%.The exceptional strength of the alloy can be primarily attributed to heteroge-neous deformation induced strengthening,grain boundary strengthening and precipitation *** excellent ductility is mainly attributed to the high-density stacking faults and Lomer–Cottrell *** study not only contributes to the clarification of the strengthening and deformation mechanism of double heterogeneous structure alloys but also provides an effective strategy for the development of high-performance alloys with high strength and ductility.

关键词： Medium entropy alloy Double heterogeneous structure HDI strengthening Remarkable tensile properties

Spatio-visual experience of movement through the yuyuan Garden:A computational analysis based on isovists and visibility graphs

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Frontiers of Architectural Research 2018年第4期7卷 497-509页

作者： Rongrong yu Michael j.Ostwald School of Engineering and Built Environment Griffith UniversityAustralia School of Architecture and Built Environment The University of NewcastleAustralia

A traditional Chinese private garden (TCpG) is a historically important spatial type of garden that is well-known for its rich experiential properties. Although several theories have been used to explain the creation of these experiential properties, little evidence exists for any of the current explanations because TCpGs are complex environments and their visual properties change as a person moves through them. This study uses computational analysis—isovists, isovist fields, and visibility graphs—to measure the spatio-visual character of movement along a path through a well-known TCpG, namely, the 16th century yuyuan Garden in Shanghai. The measures derived from this process are used to evaluate four theories on the spatial experience of the TCpG.

关键词： Traditional Chinese private garden Visual property Isovist analysis Spatial experience

A bacterial effector protein uncovers a plant metabolic pathway involved in tolerance to bacterial wilt disease

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Molecular plant 2021年第8期14卷 1281-1296页

作者： Yaru Wang Achen Zhao Rafael j.L.Morcillo Gang yu Hao Xue jose S.Rufian yuying Sang Alberto p.Macho Shanghai Center for plant Stress Biology CAS Center for Excellence in Molecular Plant Sciences/Chinese Academy of SciencesShanghai 201602China University of Chinese Academy of Sciences BeijingChina

Bacterial wilt caused by the soil-borne plant pathogen Ralstonia solanacearum is a devastating disease *** plant colonization,*** replicates massively,causing plant wilting and death;collapsed infected tissues then serve as a source of *** this work,we show that the plant metabolic pathway mediated by pyruvate decarboxylases(pDCs)contributes to plant tolerance to bacterial wilt *** and tomato plants resp ond to *** infection by in creasing pDC activity,and plants with deficient pDC activity are more susceptible to bacterial *** with either pyruvic acid or acetic acid(substrate and product of the pDC pathway,respectively)enhances plant tolerance to bacterial wilt *** effector protein secreted by ***,RipAK,interacts with pDCs and inhibits their oligomerization and enzymatic ***,our work reveals a metabolic pathway involved in plant resistance to biotic and abiotic stresses,and a bacterial virulence strategy to promote disease and the completion of the pathogenic life cycle.

关键词： pyruvate decarboxylase pyruvic acid acetic acid bacterial wilt Ralstonia solanacearum type-Ⅲeffector

Do tau-synaptic long-term depression interactions in the hippocampus play a pivotal role in the progression of Alzheimer’s disease?

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Neural Regeneration Research 2023年第6期18卷 1213-1219页

作者： Zhengtao Hu Tomas Ondrejcak pengpeng yu Yangyang Zhang Yin Yang Igor Klyubin Sean p.Kennelly Michael j.Rowan Neng-Wei Hu Department of physiology and Neurobiology School of Basic Medical SciencesZhengzhou UniversityZhengzhouHenan ProvinceChina Department of Gerontology The First Affiliated Hospital of Wannan Medical CollegeWuhuAnhui ProvinceChina Department of pharmacology&Therapeutics and Institute of Neuroscience Trinity CollegeDublinIreland Department of Age-Related Healthcare Tallaght University HospitalDublinIreland Department of Medical Gerontology Trinity CollegeDublinIreland

Cognitive decline in Alzheimer’s disease correlates with the extent of tau pathology,in particular tau hyperphosphorylation that initially appears in the transentorhinal and related regions of the brain including the *** evidence indicates that tau hyperphosphorylation caused by either amyloid-βor long-term depression,a form of synaptic weakening involved in learning and memory,share similar *** from our group and others demonstrate that long-term depression-inducing low-frequency stimulation triggers tau phosphorylation at different residues in the hippocampus under different experimental conditions including ***,certain forms of long-term depression at hippocampal glutamatergic synapses require endogenous tau,in particular,phosphorylation at residue *** the exact mechanisms of interaction between tau and long-term depression may help our understanding of the physiological and pathological functions of tau/tau(hyper)*** first summarize experimental evidence regarding tau-long-term depression interactions,followed by a discussion of possible mechanisms by which this interplay may influence the pathogenesis of Alzheimer’s ***,we conclude with some thoughts and perspectives on future research about these interactions.

关键词： aging Alzheimer’s disease amyloid-β Aβoligomers hippocampus long-term depression long-term potentiation LTD LTp metabotropic glutamate receptor N-methyl-D-aspartate receptor tau hyperphosphorylation tau phosphorylation tau

化工企业生产调度监控及预警系统集成研究与实践

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煤矿现代化 2025年第1期34卷 66-70,77页

作者：俞海冰北斗天地股份有限公司山东邹城273500

当今时代信息技术日新月异的发展过程中,大数据的汇集与应用已成为重要特征。化工企业作为国民经济的重要支柱,由于生产工艺复杂、数据量大,对大数据的应用需求日益增大。本文以某化工企业应用大数据技术改造、升级、优化生产调度系统... 详细信息

当今时代信息技术日新月异的发展过程中,大数据的汇集与应用已成为重要特征。化工企业作为国民经济的重要支柱,由于生产工艺复杂、数据量大,对大数据的应用需求日益增大。本文以某化工企业应用大数据技术改造、升级、优化生产调度系统为具体研究样本,针对大数据在化工企业生产调度中的应用现状、面临的挑战与机遇等问题,有的放矢地解决生产运行中存在的管理难点和痛点问题。

关键词：大数据技术生产调度工业云平台虚拟化