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Journal of Materials Science & Technology 2014年第5期30卷 517-522页

作者： Yuxi Wu Wanglin Zhang Jia guo Jieshan Hou xiuyan Li Renzhong Huang Xiufang Ma Qianfeng Zhang Institute of Molecular Engineering and Applied Chemistry Anhui University of Technology Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of Sciences College of Physics Science and Technology Shenyang Normal University

The influence of lattice misfit on the occupation behavior and the ductility effect of Zr in Ni-Ni3Al alloys were explored. It is found in energy analysis that the preferable site of Zr between Ni sublattice and Al sublattice will change under different lattice misfit, however, the Zr prefers to segregate Ni phase rather than Ni3Al phase in all lattice misfit range, which makes it impossible for Zr to go into Ni3Al phase to occupy Al sublattice in Ni-Ni3Al system. Bond order （BO） analysis shows that the localized ductility effect of Zr differs in different region, and the comparison between Zr-free and Zr-doped BO analysis successfully explain the mechanism of the embrittlement of Ni-Ni3Al alloys and the ductility effect of Zr.

关键词： Zirconium Lattice misfit Occupation behavior Ductility Embrittlement

化学发光免疫分析法检测山东省东阿县原发性醛固酮增多症患者醛固酮与肾素的比值

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国际医药卫生导报 2020年第4期26卷 554-558页

作者：王晓丽司家峰冷敏周坤郭秀燕刘爱云东阿县人民医院山东252201

目的测定山东东阿县原发性醛固酮增多症(primary aldosteronism,PA)的醛固酮与肾素比值(aldosterone to renin ratio,ARR)的分界值。方法选取2017年1月至12月于本院临床中心登记的146例患者,其中51例为PA,95例为原发性高血压(essential ... 详细信息

目的测定山东东阿县原发性醛固酮增多症(primary aldosteronism,PA)的醛固酮与肾素比值(aldosterone to renin ratio,ARR)的分界值。方法选取2017年1月至12月于本院临床中心登记的146例患者,其中51例为PA,95例为原发性高血压(essential hypertension,EH),对患者的右肾上腺进行CT扫描和病理切片检查,检测所有患者的血液参数,包括甲状旁腺素、血浆醛固酮浓度等,进行单因素分析和二元逻辑回归模型;绘制ROC曲线,确定ARR的最大敏感性和特异性。结果PA组的年龄低于EH组(P<0.05)。而且PA组和EH组的甲状旁腺(PTH)相比[(43.08±19.16)pg/ml比(55.71±18.66)pg/ml],差异有统计学意义(P=0.033);伴有高排泄的醛固酮PA患者有更高的血浆醛固酮浓度(PAC)和更低血浆肾素浓度(PRC),分别为578.7 ng/dl比418.1 ng/dl,6.5 ng/dl比13.0 ng/dl。单因素分析发现年龄、PTH、PRC、PAC作为连续性变量与ARR相关;二元逻辑回归模型分析发现,上述因素为独立预测因子,ARR和PAC的95%置信区间分别是(-119.70,-51.75)和(-215.15,-73.00);ARR曲线下面积为0.984,PA和EH的分界值为43.6,具有高敏感性(96.1%)和特异性(91.6%)。结论本研究为PA的诊断提供精确分界值,对指导山东省东阿县的PA进行早期筛选具有重要意义。

关键词：原发性醛固酮增多症醛固酮肾素分界值

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有机磷系阻燃剂阻燃热塑性聚酯的研究进展

工程塑料应用 2024年第5期52卷 171-180页

作者：邵路山姚忠樱冯秀艳马国儒马逸飞陈新同国爱丽王丽新北京建筑材料检验研究院股份有限公司北京100041 中国建筑材料科学研究总院有限公司陶瓷科学研究院北京100024 国家建筑防火产品安全质量检验检测中心北京100041

介绍了近年来针对聚对苯二甲酸乙二酯(PET)、聚对苯二甲酸丁二酯(PBT)和聚碳酸酯(PC)阻燃所使用的有机磷系阻燃剂的最新进展。有机磷系阻燃剂因其品种繁多,应用广泛,阻燃效果优异,同时还具有增塑剂和润滑剂的功效。介绍了有机磷系阻燃... 详细信息

介绍了近年来针对聚对苯二甲酸乙二酯(PET)、聚对苯二甲酸丁二酯(PBT)和聚碳酸酯(PC)阻燃所使用的有机磷系阻燃剂的最新进展。有机磷系阻燃剂因其品种繁多,应用广泛,阻燃效果优异,同时还具有增塑剂和润滑剂的功效。介绍了有机磷系阻燃剂的种类和阻燃机理。重点阐述了磷(膦)酸酯、磷杂菲、有机次膦酸、有机次膦酸盐化合物、磷腈化合物、氧化膦等阻燃剂在PET,PBT和PC等热塑性聚酯中的阻燃性能和作用机理。最后对热塑性聚酯用有机磷系阻燃剂的不足之处与未来研究趋势进行展望。

关键词：有机磷系阻燃剂热塑性聚酯阻燃机理阻燃性能

Comparison of cellular responses across multiple passage numbers in Ba/F3-BCR-ABL cells induced by silver nanoparticles

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Science China(Life Sciences) 2012年第10期55卷 898-905页

作者： guo DaWei ZHANG xiuyan HUANG ZhiHai ZHOU XueFeng ZHU LingYing ZHAO Yun GU Ning liangsu Key Laboratory for Biomaterials and Devices State Key Laboratory of BioelectronicsSchool of Biological Science&Medical EngineeringSoutheast UniversityNanjing 210096China Suzhou Key Laboratory of Biomedical Materials and Technology Research Institute of Southeast University in SuzhouSuzhou 215123China Cyrus Tang Hematology Center Jiangsu Institute o[HematologyFirst Affiliated HospitalSooehow UniversitySuzhou 215123China

With the rapid development of nanotechnology and increasingly broad bio-application of engineered nanomaterials, their bio- hazards have become a serious public concern. It is believed that the chemical nature, particle size, morphology, and surface chemistry of nanomaterials are key parameters that influence their toxicity. Although cultured ceils have been widely used to evaluate nanomaterial toxicity, it remains unclear whether the passage of these cells affects the evaluation results. In the pre- sent study, Ba/F3 cells transfected with the BCR-ABL gene were subcultured to study the effect of passage number on cell sta- bility and their cellular responses upon exposure to nanomaterials. The results demonstrated that proliferation, cellular senes- cence, BCR-ABL gene expression, cell cycle and apoptosis were stable across multiple passages. Senescence and BCR-ABL gene expression of cells from different passage cells were unchanged when treated with silver nanoparticles （AgNPs）. In addi- tion, the cells at multiple passage numbers were all arrested in the G2/M phase and apoptosis was induced by the AgNPs. These nanoparticles could enter cells via endocytosis and localize in the cndosomes, which were also not influenced by passage number. These data suggest that short-term passage would not affect cultured cell stability and toxicity assessment using these cells would be consistent when maintained appropriately.

关键词： silver nanoparticles (AgNPs) cellular response cell passage stability uptake

BIM构件库系统建设与应用研究——以天津市域铁路某线为例

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建筑经济 2024年第S01期45卷 453-457页

作者：郭剑勇张春雷王秀妍赵世杰杨炳晔中国铁路设计集团有限公司天津300142 城市轨道交通数字化建设与测评国家工程研究中心天津300308

依托天津市域铁路某线工程开展BIM构件库系统建设与应用研究,提出BIM构件库系统总体技术架构,基于***搭建BIM轻量化展示系统,实现构件在线预览功能与交互操作,利用数据库流程与权限设计开发多专业BIM模型的管理功能。应用表明:利用BIM... 详细信息

依托天津市域铁路某线工程开展BIM构件库系统建设与应用研究,提出BIM构件库系统总体技术架构,基于***搭建BIM轻量化展示系统,实现构件在线预览功能与交互操作,利用数据库流程与权限设计开发多专业BIM模型的管理功能。应用表明:利用BIM构件库可高效完成工程项目全专业全要素模型创建和三维管线综合优化等关键设计环节,满足工程设计进度和精度要求,有效提高BIM构件复用率,缩短了工程项目设计周期。

关键词：市域铁路 BIM 构件库标准化设计模型轻量化

TiS_(2)-graphene heterostructures enabling polysulfide anchoring and fast electrocatalyst for lithium-sulfur batteries:A first-principles calculation

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Chinese Physics B 2022年第4期31卷 574-582页

作者： Wenyang Zhao Li-Chun Xu Yuhong guo Zhi Yang Ruiping Liu xiuyan Li College of Physics and Optoelectronics Taiyuan University of TechnologyTaiyuan 030024China

Lithium-sulfur batteries have attracted attention because of their high energy ***,the "shuttle effect" caused by the dissolving of polysulfide in the electrolyte has greatly hindered the widespread commercial use of lithiumsulfur *** this paper,a novel two-dimensional TiS2/graphene heterostructure is theoretically designed as the anchoring material for lithium-sulfur batteries to suppress the shuttle *** heterostructure formed by the stacking of graphene and TiS2 monolayer is the van der Waals type,which retains the intrinsic metallic electronic structure of graphene and TiS2 *** improves the electronic conductivity of the sulfur cathode,and the transferred electrons from graphene enhance the polarity of the TiS2 *** of the polysulfide adsorption show that the TiS2/graphene hetero structure can maintain good metallic properties and the appropriate adsorption energies of 0.98-3.72 eV,which can effectively anchor *** transfer analysis suggests that further enhancement of polarity is beneficial to reduce the high proportion of van der Waals(vdW) force in the adsorption energy,thereby further enhancing the anchoring *** Li2 S decomposition barrier and Li-ion migration barrier imply that the heterostructure has the ability to catalyze fast electrochemical kinetic ***,TiS2/graphene heterostructure could be an important candidate for ideal anchoring materials of lithium-sulfur batteries.

关键词： lithium-sulfur batteries TiS_(2)/graphene heterostructure anchoring material shuttle effect

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丛式井区域性阴极保护试验与研究

天然气与石油 2004年第1期22卷 31-33页

作者：王卫金李凤全郭岫岩张强吉林石油集团公司勘察设计院吉林松原138001 塔里木油田分公司新疆库尔勒841000

对于直井进行区域性阴极保护 ,国内外都有较成熟的经验 ,只要将阳极埋设在适当的位置 ,再提供合适的电流 ,就可使油水井保护深度达 1 5 0 0m左右。对于斜井如何保护 ,目前尚未有这方面的相关报道。起初我们在进行新民 5号站设计时 ,根... 详细信息

对于直井进行区域性阴极保护 ,国内外都有较成熟的经验 ,只要将阳极埋设在适当的位置 ,再提供合适的电流 ,就可使油水井保护深度达 1 5 0 0m左右。对于斜井如何保护 ,目前尚未有这方面的相关报道。起初我们在进行新民 5号站设计时 ,根据以往对直井的保护经验 ,把阳极埋放在距设计井位 30m左右处。后来在施工过程中我们发现 :按设计井位布置阳极 ,线路长、投资大。新民 5号站 89口油水中井 ,有 4 8口丛式井 ,它们分布在 1 0个平台井场上 ,占总井数的 5 3 9%。这些井如能按井口埋设阳极。

关键词：丛式井合理布置阳极阴极保护

A gate-tunable artificial synapse based on vertically assembled van der Waals ferroelectric heterojunction

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Journal of Materials Science & Technology 2022年第33期128卷 239-244页

作者： Yaning Wang Wanying Li Yimeng guo Xin Huang Zhaoping Luo Shuhao Wu Hai Wang Jiezhi Chen xiuyan Li Xuepeng Zhan Hanwen Wang Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China School of Material Science and Engineering University of Science and Technology of ChinaShenyang 110016China Department of Applied Physics Aalto UniversityAaltoFinland School of Information Science and Engineering(ISE) Shandong UniversityQingdao 266237China

Memtransistor,a multi-terminal device that combines both the characteristics of a memristor and a transistor,has been intensively studied in two-dimensional layered materials(2 DLM),which show potential for applications in such as neuromorphic ***,while often based on the migration of ions or atomic defects in the conduction channels,performances of memtransistors suffer from the poor reliability and ***,those known 2 DLM-based memtransistors are mostly constructed in a lateral manner,which hinders the further increasing of the transistor densities per *** now,fabricating non-atomic-diffusion based memtransistors with vertical structure remains ***,we demonstrate a vertically-integrated ferroelectric memristor by hetero-integrating the 2 D ferroelectric materials CuInP_(2)S_(6)(CIPS)into a graphite/CuInP_(2)S_(6)/MoS_(2)vertical *** behaviour and multi-level resistance states were *** synaptic behaviours including excitatory postsynaptic current,paired-pulse-facilitation,and spike-amplitude-dependent plasticity are successfully ***,by applying a gate potential,the memristive behaviour and synaptic features can be effectively gate *** findings pave the way for the realization of novel gate-tunable ferroelectric synaptic devices with the capability to perform complex neural functions.

关键词： van der Waals heterostructures Ferroelectrics Memristor Artificial synapse Neuromorphic computing

肝硬化并发首次上消化道出血患者心理体验的质性研究

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中国卫生标准管理 2024年第10期15卷 185-188页

作者：刘志芳李丽红郭莉王欢成秀艳临汾职业技术学院护理系山西临汾041000

目的深入了解肝硬化并发首次上消化道出血患者的真实心理体验,并探讨其应对方式。方法采用质性研究设计,于2022年3—6月对山西省临汾市某三甲医院消化内科的11例代表性样本进行半结构化深度访谈,数据逐字转录,并使用Colaizzi的现象学... 详细信息

目的深入了解肝硬化并发首次上消化道出血患者的真实心理体验,并探讨其应对方式。方法采用质性研究设计,于2022年3—6月对山西省临汾市某三甲医院消化内科的11例代表性样本进行半结构化深度访谈,数据逐字转录,并使用Colaizzi的现象学方法进行主题分析。结果确定了2个类属5个主题。类属1:负价体验,即焦虑与恐慌;自责与愧疚;自我负担感。类属2:正价体验,即主动探求疾病知识;反思与成长。结论肝硬化并发首次上消化道出血患者心理体验多样,护理人员要引导患者加强正价体验,改善负价体验,为制定和提供高质量的护理服务提供科学依据。

关键词：肝硬化上消化道出血首次心理体验护理质性研究

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探析岩土工程水文地质勘察技术

城市建筑 2014年第8期11卷 194-194页

作者：国秀艳李建川天津市地质工程勘察院天津300191 天津市津勘岩土工程股份有限公司天津300191

水文地质问题作为岩土工程勘察内容，在岩土工程基础设计、地质灾害防治、工程勘察方面有积极的促进作用。本文说明了岩土工程勘察特点、地下水对工程的影响及岩土工程开展水文地质勘察主要技术手段、勘测水文地质参数常用方法等。

关键词：岩土工程水文地质勘察地下