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三级时效7N01铝合金微观结构与力学性能关系的研究

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电子显微学报 2016年第5期35卷 379-385页

作者：饶栋陈江华杨修波赵甜甜余雄伟赵新奇湖南大学材料科学与工程学院高分辨电镜中心湖南长沙410082 湖南大学物理与微电子科学学院应用物理系湖南长沙410082

本文针对一种有实际应用前景、经历了三级时效的7N01铝合金,采用透射电镜观察和力学性能测试,系统研究了该合金力学性能与析出相微观结构的关系。研究结果表明,该种经历了三级时效状态的7N01铝合金,相比直接人工热处理的材料,屈服强度... 详细信息

本文针对一种有实际应用前景、经历了三级时效的7N01铝合金,采用透射电镜观察和力学性能测试,系统研究了该合金力学性能与析出相微观结构的关系。研究结果表明,该种经历了三级时效状态的7N01铝合金,相比直接人工热处理的材料,屈服强度和抗拉强度均可获得显著提高,同时不损失延伸率。透射电镜观察发现,峰值时效状态下合金的主要强化析出相为η'相和GP区。而且自然时效形成的合金元素原子集团中有GP区生成,它们在人工时效阶段可以直接转化为η'相颗粒。经三级时效处理的合金强度在一定范围内与自然时效阶段形成的GP区的多少密切相关。

关键词： 7N01铝合金时效析出相强度

Loss-of-function mutations of microRNA-142-3p promote ASH1L expression to induce immune evasion and hepatocellular carcinoma progression

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World Journal of Gastroenterology 2025年第1期31卷 126-145页

作者： xing-Hui Yu Yan Xie Jian Yu Kun-Ning Zhang Zhou-Bo Guo Di Wang zhao-Xian Li wei-Qi Zhang Yu-Ying Tan Li Zhang Wen-Tao Jiang School of Medicine Nankai UniversityTianjin 300192China Tianjin Key Laboratory of Molecular Diagnosis and Treatment of Liver Cancer Tianjin First Center HospitalTianjin 300192China Department of Liver Transplantation Tianjin First Center HospitalTianjin 300192China First Central Clinical School Tianjin Medical UniversityTianjin 300192China

BACKGROUND Hepatocellular carcinoma(HCC)has been a pervasive malignancy throughout the world with elevated *** therapeutic targets are beneficial to treat and predict the ***,the exact molecular mechanisms leading to the progression of HCC are still *** has shown that the microRNA-142-3p level decreases in HCC,whereas bioinformatics analysis of the cancer genome atlas database shows the ASH1L expression increased among liver tumor *** this paper,we will explore the effects and mechanisms of microRNA-142-3p and ASH1L affect the prognosis of HCC patients and HCC cell bioactivity,and the association between *** To investigate the effects and mechanisms of microRNA-142-3p and ASH1L on the HCC cell bioactivity and prognosis of HCC *** In this study,we grouped HCC patients according to their immunohistochemistry results of ASH1L with pathological tissues,and retrospectively analyzed the prognosis of HCC ***,explored the roles and mechanisms of microRNA-142-3p and ASH1L by cellular and animal experiments,which involved the following experimental methods:Immunohistochemical staining,western blot,quantitative real-time-polymerase chain reaction,flow cytometric analysis,tumor xenografts in nude mice,*** statistical methods involved in this study contained t-test,one-way analysis of variance,theχ^(2)test,the Kaplan-Meier approach and the log-rank *** In this study,we found that HCC patients with high expression of ASH1L possess a more recurrence rate as well as a decreased overall survival ***1L promotes the tumorigenicity of HCC and microRNA-142-3p exhibits reduced expression in HCC tissues and interacts with ASH1L through targeting the ASH1L 3′untranslated ***,microRNA-142-3p promotes apoptosis and inhibits proliferation,invasion,and migration of HCC cell lines in vitro via *** the exploration mechanism,we found ASH1L may promote an immunosuppressive mi

关键词： Hepatocellular carcinoma MicroRNA-142-3p ASH1L Immune evasion Tumor immune microenvironment Apoptosis

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建筑物隔震技术在日本的研究发展和工程应用

世界地震工程 2001年第4期17卷 7-12页

作者：王刚魏新磊赵彤天津大学建筑工程学院天津300072

对日本近期开发研制的多段式隔震系统、高强度叠层橡胶支座、全向滑轨隔震装置、偏心滚轴隔震装置和３维隔震系统进行了介绍．概述了日本隔震技术的工程应用情况，并对日本隔震技术的发趋势进行了分析。

关键词：日本建筑物隔震技术橡胶支座隔震装置

Unraveling the significance of cobalt on transformation kinetics,crystallography and impact toughness in high-strength steels

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 380-390页

作者： Yishuang Yu Jingxiao zhao Xuelin Wang Hui Guo Zhenjia Xie Chengjia Shang Collaborative Innovation Center of Steel Technology University of Science and Technology BeijingBeijing 100083China School of Materials Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240China State Key Laboratory for Advanced Metals and Materials University of Science and Technology BeijingBeijing 100083China

This work reveals the significant effects of cobalt(Co)on the microstructure and impact toughness of as-quenched highstrength steels by experimental characterizations and thermo-kinetic *** results show that the Co-bearing steel exhibits finer blocks and a lower ductile-brittle transition temperature than the steel without ***,the Co-bearing steel reveals higher transformation rates at the intermediate stage with bainite volume fraction ranging from around 0.1 to *** improved impact toughness of the Co-bearing steel results from the higher dense block boundaries dominated by the V1/V2 variant ***,the addition of Co induces a larger transformation driving force and a lower bainite start temperature(BS),thereby contributing to the refinement of blocks and the increase of the V1/V2 variant *** findings would be instructive for the composition,microstructure design,and property optimization of high-strength steels.

关键词： high-strength steel cobalt transformation kinetics crystallography impact toughness

Efficient Model Store and Reuse in an OLML Database System

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Journal of Computer Science & Technology 2021年第4期36卷 792-805页

作者： Jian-wei Cui wei Lu xin zhao Xiao-Yong Du Key Laboratory of Data Engineering and Knowledge Engineering of Ministry of Education Renmin University of China Beijing 100872China School of Information Renmin University of ChinaBeijing 100872China

Deep learning has shown significant improvements on various machine learning tasks by introducing a wide spectrum of neural network ***,for these neural network models,it is necessary to label a tremendous amount of training data,which is prohibitively expensive in *** this paper,we propose OnLine Machine Learning(OLML)database which stores trained models and reuses these models in a new training task to achieve a better training effect with a small amount of training *** efficient model reuse algorithm AdaReuse is developed in the OLML ***,AdaReuse firstly estimates the reuse potential of trained models from domain relatedness and model quality,through which a group of trained models with high reuse potential for the training task could be selected ***,multi selected models will be trained iteratively to encourage diverse models,with which a better training effect could be achieved by *** evaluate AdaReuse on two types of natural language processing(NLP)tasks,and the results show AdaReuse could improve the training effect significantly compared with models training from scratch when the training data is *** on AdaReuse,we implement an OLML database prototype system which could accept a training task as an SQL-like query and automatically generate a training plan by selecting and reusing trained *** studies are conducted to illustrate the OLML database could properly store the trained models,and reuse the trained models efficiently in new training tasks.

关键词： model selection model reuse OnLine Machine Learning(OLML)database

基于乳脂肪球膜结构以提高液态乳体系的稳定性:乳脂肪球膜构建机制综述

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食品科学 2025年第2期46卷 308-316页

作者：王鑫于景华赵亭亭刘晓辉天津科技大学食品科学与工程学院食品营养与安全国家重点实验室天津300457 河北省功能油脂微胶囊化技术创新中心河北石家庄052160

乳脂肪球起源于乳腺上皮细胞,脂肪球膜中的脂质和蛋白质通过静电斥力和空间位阻维持脂肪球的稳定性,同时膜上的成分具有特定的营养特性。脂肪球界面的重新构建对液态乳制品的品质至关重要,本文对近年来加工中乳脂肪球界面构建机制的研... 详细信息

乳脂肪球起源于乳腺上皮细胞,脂肪球膜中的脂质和蛋白质通过静电斥力和空间位阻维持脂肪球的稳定性,同时膜上的成分具有特定的营养特性。脂肪球界面的重新构建对液态乳制品的品质至关重要,本文对近年来加工中乳脂肪球界面构建机制的研究进行总结并发掘共通之处。均质会破坏脂肪球膜的原生结构,导致膜结构重新排列。此外,热处理也会改变蛋白质的结构,并引起脂质结构域的侧向分离。同时,脂肪球膜上蛋白质和脂质的热响应会导致原始膜成分的损失。外源添加物通过改善油水界面和增强脂肪球的稳定性,参与体系稳定化的重构建。未来需深入研究脂肪球膜构建机制与宏观体系的联系,并优化特定的加工条件,以获得更高品质的乳制品。

关键词：脂肪球脂肪球膜脂肪球膜蛋白脂质域重构建

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冗余技术在污水处理厂自控系统中的应用

自动化与仪表 2017年第9期32卷 57-59,76页

作者：李珍张国骞张玮赵新龙天津工业自动化仪表研究所有限公司天津300060

污水处理过程工艺复杂、环节众多,其中任何一个环节出现问题都对水质有着巨大的影响。城市污水处理控制系统采用多重冗余设计,即双控制器冗余、双电源冗余、双交换机冗余、双环以太网通讯链路冗余、双数据服务器冗余、工程师站与操作员... 详细信息

污水处理过程工艺复杂、环节众多,其中任何一个环节出现问题都对水质有着巨大的影响。城市污水处理控制系统采用多重冗余设计,即双控制器冗余、双电源冗余、双交换机冗余、双环以太网通讯链路冗余、双数据服务器冗余、工程师站与操作员站双链路通讯冗余、操作员站之间的互备冗余,使得整个监控系统更为完善,保证了系统的稳定和可靠。

关键词：冗余污水处理网络控制

Resolving Subcategories of Triangulated Categories and Relative Homological Dimension

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Acta Mathematica Sinica,English Series 2017年第11期33卷 1513-1535页

作者： xin MA Ti wei zhao zhao Yong HUANG Department of Mathematics Nanjing UniversityNanjing 210093P.R.China

We introduce and study （pre）resolving subcategories of a triangulated category and the homological dimension relative to these subcategories. We apply the obtained properties to relative Gorenstein categories.

关键词： (Pre)resolving subcategories triangulated categories relative homological dimension,Gorenstein categories

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婴幼儿急性泪囊炎的治疗体会

眼外伤职业眼病杂志 2008年第4期30卷 321-322页

作者：魏金鑫赵晓春陈正勇程天书福州东南眼科医院福建福州350002

目的探讨婴幼儿急性泪囊炎发病原因及有效的治疗方法。方法对门诊就诊的38例(38眼)婴幼儿急性泪囊炎全身抗感染治疗后采用泪道冲洗加探通法治疗,观察疗效。结果38例通过泪道冲洗加探通治疗,37例治愈。治愈率97.4%。结论经全身抗感染治... 详细信息

目的探讨婴幼儿急性泪囊炎发病原因及有效的治疗方法。方法对门诊就诊的38例(38眼)婴幼儿急性泪囊炎全身抗感染治疗后采用泪道冲洗加探通法治疗,观察疗效。结果38例通过泪道冲洗加探通治疗,37例治愈。治愈率97.4%。结论经全身抗感染治疗后行泪道冲洗加探通法是治疗婴幼儿急性泪囊炎简单有效的方法。

关键词：急性泪囊炎泪道探通婴幼儿