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Influence of Temperature and Stress on Near-Surface Cascades in Alpha-Zirconium Revealed by Molecular Dynamics Simulation

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Chinese Physics Letters 2013年第9期30卷 112-115页

作者： wu tian-yu PENG Meng-Meng LUO Xiao-Feng LAI Wen-Sheng Laboratory of Advanced Materials School of Material Science and EngineeringTsinghua UniversityBeijing 100084

Molecular dynamics simulations are used to study cascades near the surface in hcp *** influences of several factors,namely the primary knock-on atom(PKA)in different layers,angle of incidence,temperature and stress,on the number and type of defects are *** to bulk cascades,near-surface cascades show different characteristics in defect type and quantity when the PKA is in different *** angle incidences create surface sputtering while the effects of high angle incidences are similar to those of bulk *** effect of temperature is mainly focused on the number of sputtered atoms,with little influence on the total number of surviving *** helps to create more defects and the influence of compressive stress is more prominent than tensile stress.

关键词： stress Molecular angle

Influence of SLYWG on malignant tumor ascites

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沈阳药科大学学报 2008年第S1期25卷 83-84页

作者： YANG tian,XU Feng,wu tian-yu(Shenyang Pharmaceutical University,Shenyang 110016,China)

Objective To search the effect of Chinese traditional medicine "Shang Lu yu Wang Gao"(SLYWG)on the ascites induced by tumor,and its *** The tumor ascites model and diuretic experiments were introduced to evaluate the effect of *** characteristics,the tumor cell counting,volume of the ascites,protein content in ascites,the characters of ascites,the life duration of S180 tumor bearing animals as the indexes of *** diurtic experiments were performed on rats nad rabbits,the osmotic pressure,K+,Na+,Cl-,Ca2+ and pH in urine were *** The inhibitions to ascites of SLYWG were displayed in three dosage(30 g·kg-1,15 g·kg-1 and 7.5 g·kg-1).Ascites caused by tumor was significantly inhibited by the local administration of *** increase of mice ascites was slow down,the content of ALB and the TP in ascites were decreased,the surviving time of mice was *** had remarkable diuresis effect on the rats and rabbits,it could reduce the osmotic pressure of urine,decrease the exclude of K+ but had no effect on the Na+,Cl-,Ca2+ and pH in *** Tumor ascites was significantly inhibited by the ventral administration of *** had diuretic effect in rats and rabbits,it reduced the osmotic pressure of urine,decrease the exclude of K+ but had no effect on Na+,Cl-,Ca2+ and pH of urine.

关键词： SLYWG phytolacca acinosa pharbitidis malignant tumor ascites alleviate water retention diuresis

基于实时监控的碾压混凝土坝施工仿真（英文）

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2018年第5期19卷 367-383页

作者： Qian-wei WANG Deng-hua ZHONG Bin-ping wu Jia yu Hao-tian CHANG State Key Laboratory of Hydraulic Engineering Simulation and Safety Tianjin University

目的:碾压混凝土坝施工过程中施工仿真参数会随着施工现场环境变化而变化。本文探讨实时监控方法获取的施工信息对施工进度仿真的影响,研究碾压混凝土坝施工仿真参数自适应更新方法,提高施工仿真的精度。创新点:1.通过碾压混凝土坝施工... 详细信息

目的:碾压混凝土坝施工过程中施工仿真参数会随着施工现场环境变化而变化。本文探讨实时监控方法获取的施工信息对施工进度仿真的影响,研究碾压混凝土坝施工仿真参数自适应更新方法,提高施工仿真的精度。创新点:1.通过碾压混凝土坝施工信息实时获取技术,分析计算碾压混凝土坝施工仿真参数;2.利用贝叶斯更新技术对施工仿真参数进行更新;3.利用模糊均生函数对坝区短期降雨量进行预测;4.建立基于实时监控的碾压混凝土坝施工仿真模型,对碾压混凝土坝施工过程进行仿真并与实际施工进度对比。方法:1.通过实地采集,获取碾压混凝土坝施工过程中实时施工信息(图2);2.通过理论推导,构建施工仿真参数先验分布均值和方差与后验分布均值和方差之间的关系,得到施工仿真参数更新方案(公式(16)和(17));3.通过理论推导,利用已知坝区降雨量数据预测未来短期内的降雨情况(图5);4.通过仿真模拟,得到施工仿真参数更新后的仿真成果并将其与实际施工进行对比,验证本方法的有效性和准确性。结论:1.施工仿真参数的准确性对碾压混凝土坝施工仿真结果准确性有很大影响;2.可以利用贝叶斯更新技术对施工仿真中的仿真参数进行更新,利用模糊均生函数对坝区短时期内降雨量进行预测;3.运用基于实时监控的碾压混凝土坝施工仿真方法对碾压混凝土坝施工过程进行仿真,仿真结果与实际施工进度之间的偏差明显减少,仿真准确性明显提高。

关键词：碾压混凝土坝施工仿真实时监控贝叶斯更新模糊均生函数

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孙德谦《太史公书义法》考述

史林 2020年第3期 115-126,221页

作者：吴天宇清华大学历史系 100084

孙德谦的《太史公书义法》跳出了魏晋以来经、史分途的观念,试图重回司马迁著史的历史背景,从经史关系的角度探究《史记》的性质与司马迁著史的"义法",与清代以来"考史""论文"的研究取径有极大区别。本文对孙德谦的《史记》研究进行全... 详细信息

孙德谦的《太史公书义法》跳出了魏晋以来经、史分途的观念,试图重回司马迁著史的历史背景,从经史关系的角度探究《史记》的性质与司马迁著史的"义法",与清代以来"考史""论文"的研究取径有极大区别。本文对孙德谦的《史记》研究进行全面梳理,并将其置于清末民初的《史记》学研究脉络之中,指出孙德谦的学术是以章学诚提出的"文史校雠"为取径、以勾通经史的学术理念为指导,故其以"义法"为中心的《史记》研究呈现出一种既不同于以往,又不同于时人的独特面向,具有重要的学术史意义。

关键词：孙德谦《太史公书义法》《史记》经史关系

Metabolomic Profiling of Mice Exposed toα-amanitin Using Ultra-performance Liquid Chromatography Quadrupole Time-of-flight Tandem Mass Spectrometry

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Biomedical and Environmental Sciences 2023年第3期36卷 289-294页

作者： LI Lei ZHENG Chong YE Jian Fang ZHU Kai ZHOU Yi Bing LIU Jia GAO Ming wu yu tian LIU Yong Ting LIU Li Ya LIN Ye LI Hai Chang ZHANG Quan GUO Hua Clinical Laboratory Guizhou Provincial Center for Disease Control and PreventionGuiyang 550004GuizhouChina Clinical Laboratory Guiyang Provincial Center for Disease Control and PreventionGuiyang 550002GuizhouChina

Numerous instances of poisoning caused by the ingestion of mushrooms are reported annually worldwide,with most mushroom poisoning deaths caused by the ingestion of toxic amanita *** is the main toxic component of aman... 详细信息

关键词： Metab ani annually

Influence of SLYWG on malignant tumor ascites

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Influence of SLYWG on malignant tumor ascites

Review of precipitation strengthening in ultrahigh-strength martensitic steel

两岸三地药理学与临床药理学术会议

作者： YANG tian XU Feng wu tian-yu (Shenyang Pharmaceutical University, Shenyang 110016, China)

Objective To search the effect of Chinese traditional medicine"Shang Lu yu Wang Gao"(SLY- WG)on the ascites induced by tumor,and its *** The tumor ascites model and diuretic ex- periments were introduced to evaluate the effect of *** characteristics,the tumor cell count- ing,volume of the ascites,protein content in ascites,the characters of ascites,the life duration of Stumor bearing animals as the indexes of evaluation,the diurtic experiments were performed on rats nad rabbits,the osmotic pressure,K,Na,Cl,Caand pH in urine were *** The inhibitions to ascites of SLYWG were displayed in three dosage(30g·kg,15g·kgand 7.5g·kg).Ascites caused by tu- mor was significantly inhibited by the local administration of *** increase of mice ascites was slow down,the content of ALB and the TP in ascites were decreased,the surviving time of mice was extended. SLYWG had remarkable diuresis effect on the rats and rabbits,it could reduce the osmotic pressure of urine,decrease the exclude of Kbut had no effect on the Na,Cl,Caand pH in *** Tu- mor ascites was significantly inhibited by the ventral administration of *** had diuretic effect in rats and rabbits,it reduced the osmotic pressure of urine,decrease the exclude of Kbut had no effect on Na,Cl,Caand pH of urine.

关键词： SLYWG phytolacca acinosa pharbitidis malignant tumor ascites alleviate water retention diuresis

来源： cnki会议评论

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 256-269页

作者： Zhihao tian Chunlei Shang Chaolei Zhang Xiaoye Zhou Honghui wu Shuize Wang Guilin wu Junheng Gao Jiaming Zhu Xinping Mao Institute for Carbon Neutrality University of Science and Technology BeijingBeijing 100083China Institute of Steel Sustainable Technology Liaoning Academy of MaterialsShenyang 110004China Department of Materials Science and Engineering Shenzhen MSU-BIT UniversityShenzhen 518172China Institute of Materials Intelligent Technology Liaoning Academy of MaterialsShenyang 110004China School of Civil Engineering Shandong UniversityJinan 250061China

Martensite is an important microstructure in ultrahigh-strength steels,and enhancing the strength of martensitic steels often involves the introduction of precipitated phases within the martensitic *** considerable research efforts devoted to this area,a systematic summary of these advancements is *** review focuses on the precipitates prevalent in ultrahigh-strength martensitic steel,primarily carbides(e.g.,MC,M_(2)C,and M_(3)C)and intermetallic compounds(e.g.,Ni Al,Ni_(3)X,and Fe_(2)Mo).The precipitation-strengthening effect of these precipitates on ultrahigh-strength martensitic steel is discussed from the aspects of heat treatment processes,microstructure of precipitate-strengthened martensite matrix,and mechanical ***,a perspective on the development of precipitation-strengthened martensitic steel is presented to contribute to the advancement of ultrahigh-strength martensitic *** review highlights significant findings,ongoing challenges,and opportunities in the development of ultrahigh-strength martensitic steel.

关键词： ultrahigh-strength martensitic steel precipitation strengthening mechanical property carbide intermetallic compound

Nanostructured ZnO/BiVO_(4)I-scheme heterojunctions for piezocatalytic degradation of organic dyes via harvesting ultrasonic vibration energy

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 488-497页

作者： Yiling Li Xiaoyao yu Yingjie Zhou Yao Lin Ying wu Key Laboratory of the Ministry of Education for Advanced Catalysis Materials College of Chemistry and Materials ScienceZhejiang Normal UniversityJinhua 321004China

BiVO_(4)porous spheres modified by ZnO were designed and synthesized using a facile two-step *** resulting ZnO/BiVO_(4)composite catalysts have shown remarkable efficiency as piezoelectric catalysts for degrading Rhodamine B(RhB)unde mechanical vibrations,they exhibit superior activity compared to pure *** 40wt%ZnO/BiVO_(4)heterojunction composite displayed the highest activity,along with good stability and *** enhanced piezoelectric catalytic activity can be attributed to the form ation of an I-scheme heterojunction structure,which can effectively inhibit the electron-hole ***,hole(h+)and superoxide radical(·O_(2)^(-))are proved to be the primary active ***,ZnO/BiVO_(4)stands as an efficient and stable piezoelectric catalyst with broad potential application in the field of environmental water pollution treatment.

关键词： piezoelectric catalytic heterojunction dye degradation ultrasonic vibration

交变应力与环境耦合作用下拉索腐蚀疲劳损伤机理研究

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公路 2015年第4期60卷 104-109页

作者：吴甜宇李涛重庆交通大学土木建筑学院重庆市400074

通过开展室内盐雾加速腐蚀试验,研究分析了各种应力状态下腐蚀钢丝的腐蚀失重量及弹性模量、抗拉强度等力学性能的变化,得出腐蚀钢丝各种力学性能中断后伸长率对疲劳腐蚀最为敏感的结论。在试验开展的基础上,以细观损伤力学为研究手段,... 详细信息

通过开展室内盐雾加速腐蚀试验,研究分析了各种应力状态下腐蚀钢丝的腐蚀失重量及弹性模量、抗拉强度等力学性能的变化,得出腐蚀钢丝各种力学性能中断后伸长率对疲劳腐蚀最为敏感的结论。在试验开展的基础上,以细观损伤力学为研究手段,并结合断裂力学强度准则,分析了环境腐蚀、应力腐蚀和疲劳腐蚀各自的特征、机理。腐蚀斜拉索的腐蚀疲劳损伤主要是由于腐蚀造成的钢丝表面的蚀坑,进而导致应力集中现象,加之氢致开裂,导致裂纹不断萌生、发展,研究分析了应用腐蚀疲劳裂纹扩展门槛值作为点蚀坑向腐蚀疲劳裂纹转化的判据的方法,并通过数值手段,分析了钢丝全面腐蚀、表面蚀坑深度、蚀坑形状和蚀坑纵向净间距对钢丝应力分布状态和疲劳寿命的影响。

关键词：斜拉索疲劳腐蚀损伤机理蚀坑裂纹