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Nano Research 2018年第4期11卷 1873-1882页

作者： siwen cui Youbin Zheng Jun Liang Daoai Wang State Key Laboratory of Solid Lubrication Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou 730000 China University of Chinese Academy of Sciences Beijing 100049 China

Polyaniline nanofibers （PANI NFs） are introduced to construct a wind-driven triboelectric nanogenerator （TENG） as a new power source for self-powered cathodic protection. PANI NFs serve as a friction layer to generate charges by harvesting wind energy as well as a conducting layer to transfer charges in TENG. A PANI NFs-based TENG exhibits a high output performance with a maximum output voltage of 375 V, short current circuit of 248 μA, and corresponding power of 14.5 mW under a wind speed of 15 m/s. Additionally, a self-powered anticorrosion system is constructed by using a PANI-based TENG as the power source. The immersion experiment and electrochemical measurements demonstrate that carbon steel coupled with the wind-driven TENG is effectively protected with an evident open circuit potential drop and negative shift in the corrosion potential. The smart self-powered device is promising in terms of applications to protect metals from corrosion by utilizing wind energy in ambient conditions.

关键词： polyaniline triboelectric nanogenerator wind-driven self-powered cathodic protection

High-pressure synthesis, mechanical properties, and oxidation behavior of advanced boron-containing α/β-Si3N4/Si ceramics using polymer-derived amorphous SiBN ceramics

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JOURNAL OF ADVANCED CERAMICS 2024年第10期13卷 1611-1621页

作者： Li, Wei Ma, Shuailing cui, siwen Ding, Jingxue Widenmeyer, Marc Zhang, Xiaoqi Zhan, Ying Yu, Zhaoju Zhang, Wenshu Zhu, Pinwen cui, Tian Weidenkaff, Anke Riedel, Ralf Ningbo Univ Inst High Pressure Phys Sch Phys Sci & Technol Ningbo 315211 Peoples R China Tech Univ Darmstadt Dept Mat & Earth Sci D-64287 Darmstadt Germany Jilin Univ Coll Phys Synerget Extreme Condit High Pressure Sci Ctr State Key Lab Superhard Mat Changchun 130012 Peoples R China Fraunhofer Res Inst Mat Recycling & Resource Strat D-63755 Alzenau Germany Xiamen Univ Coll Mat Key Lab High Performance Ceram Fibers Minist Educ Xiamen 361005 Peoples R China

The preparation of dense Si3N4-based ceramics has attracted great attention because of the achievable improvements in their mechanical properties and high-temperature oxidation resistance. In this work, advanced dense boron-containing alpha/beta-Si3N4/Si monoliths were prepared via a high pressure-high temperature technique in which polymerderived amorphous SiBN powders were used as raw materials. The crystallization behavior and phase transformation of the polymer-derived amorphous samples were studied in the temperature range from 1400 to 1800 degrees C. The results demonstrate that the incorporation of boron in the Si3N4 matrix suppresses the phase transformation from alpha-Si3N4 to beta-Si3N4. Furthermore, the mechanical properties of the as-prepared samples were measured, and the maximum hardness and fracture toughness of boron-rich SiBN samples reached 14.8 GPa and 7.96 MPam1/2, respectively. The hardness of the obtained boron-rich SiBN samples is stable up to 300 degrees C. In addition, the oxidation behavior of the samples prepared at 1400 and 1600 degrees C was investigated at 1400 degrees C for 50 h. The results show that the incorporation of boron significantly improved the oxidation resistance of the samples because of the formation of borosilicate/cristobalite. This work provides guidance for the synthesis of boron-containing alpha/beta-Si3N4-based ceramics with excellent mechanical properties and oxidation

关键词： high-pressure synthesis Si 3 N 4 mechanical properties oxidation resistance

考虑信息的企业合作动机研究——基于序贯博弈

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经济研究导刊 2022年第20期 24-26页

作者：崔思雯贵州大学经济学院贵阳550025

企业合作一直以来都是企业决策中值得关注的命题,企业通过合作实现优势互补,在合作过程中取长补短。将市场上的企业简化为两种类别,通过建立一个序贯博弈模型,分别求取领导企业和跟随企业在独立经营与合作经营两种情况下的利润函数,研... 详细信息

企业合作一直以来都是企业决策中值得关注的命题,企业通过合作实现优势互补,在合作过程中取长补短。将市场上的企业简化为两种类别,通过建立一个序贯博弈模型,分别求取领导企业和跟随企业在独立经营与合作经营两种情况下的利润函数,研究在信息不完全的条件下跟随企业在何种信息水平下会选择跟随领导企业进行经济合作,研究显示获取竞争企业的信息成本占对手所投入自身信息成本的一定比例时,两企业会选择进行合作;当获取竞争企业的信息成本占对手所投入自身信息成本的比例较大时,两企业则不会进行合作,因为此时信息成本过高,此时的投入是不值得的。

关键词：序贯博弈不完全信息 Stackelberg模型企业合作

高温高压下透明纳米聚晶金刚石的合成与微观形貌

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硅酸盐学报 2024年第3期52卷 804-811页

作者：张松朋但雅倩陈旺江皓崔思雯赵行斌朱品文崔田马帅领宁波大学物理科学与技术学院&高压物理科学研究院浙江宁波315211 吉林大学超硬材料国家重点实验室长春130012

透明陶瓷是一种具有广泛应用前景的新一代无机非金属材料,而透明纳米聚晶金刚石具有极高的硬度和良好的透光性,是透明陶瓷中极具代表的典型材料之一。本工作介绍了一种在高温高压条件下制备的超硬透明陶瓷—纳米聚晶金刚石,并对其性能... 详细信息

透明陶瓷是一种具有广泛应用前景的新一代无机非金属材料,而透明纳米聚晶金刚石具有极高的硬度和良好的透光性,是透明陶瓷中极具代表的典型材料之一。本工作介绍了一种在高温高压条件下制备的超硬透明陶瓷—纳米聚晶金刚石,并对其性能进行了X射线衍射、扫描电子显微镜、透射电子显微镜、Raman等测试分析。结果表明:高温高压法是一种制备高性能透明陶瓷的有效途径,石墨原材料可在15 GPa、2 600℃、保温1 min条件下转变为透明的纳米聚晶金刚石。同时,样品腔的温度梯度导致样品透明度不均匀,温度的升高有利于增加纳米聚晶金刚石的透明度。形貌测试分析结果表明样品存在马氏体相变的层状结构和扩散型相变的均匀颗粒结构,层厚和晶粒尺寸均约为100 nm。高压和应力导致样品内部出现部分位错,有助于提高样品的力学强度。纳米聚晶金刚石作为硬度最高的透明陶瓷,有望在极端条件下的特殊光学窗口等领域得到广泛应用。

关键词：透明陶瓷透明纳米聚晶金刚石高温高压合成

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透明质酸在靶向抗肿瘤药物递送系统中的应用

中国药剂学杂志（网络版） 2019年第5期17卷 195-208页

作者：崔斯雯姜瑶王东凯沈阳药科大学药学院

目的综述透明质酸在抗肿瘤药物递送系统中的应用。方法以'透明质酸''药物递送系统''靶向治疗'等为关键词,组合查询了在PubMed、Elsevier、SpringerLink、中国知网、万方、维普等数据库中的相关文献,并进行归纳、分析、总结。结果透明质... 详细信息

目的综述透明质酸在抗肿瘤药物递送系统中的应用。方法以'透明质酸''药物递送系统''靶向治疗'等为关键词,组合查询了在PubMed、Elsevier、SpringerLink、中国知网、万方、维普等数据库中的相关文献,并进行归纳、分析、总结。结果透明质酸是一种能够靶向CD44(一种在各种肿瘤细胞上过表达的受体)的高分子化合物,具有靶向抗癌药物的功能。透明质酸对多种药物靶向递送的几种方法:不同的位点可以对应连接不同的小分子、大分子药物,直接修饰不同的纳米剂型;通过自组装的方式形成纳米药物递送系统等。近年来,由于其有效的靶向选择性,在药物递送、疾病诊断及生物医学成像等方面有广泛的应用。结论基于HA的纳米药物递送系统在肿瘤靶向药物递送系统中有着广阔的应用前景。

关键词：药剂学药物递送系统综述透明质酸纳米剂型肿瘤治疗

pH响应型纳米载体在肿瘤靶向药物递送系统中的应用

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中国药剂学杂志（网络版） 2019年第5期17卷 209-215页

作者：姜瑶崔斯雯王东凯沈阳药科大学药学院

目的综述基于聚合物胶束、聚合物囊泡、介孔二氧化硅纳米粒、脂质体作为pH响应型纳米载体在肿瘤靶向药物递送系统中的研究进展,以期为后续研究提供参考。方法以'pH响应型''药物递送系统''靶向治疗'等为关键词,组合查询了在PubMed、Elsev... 详细信息

目的综述基于聚合物胶束、聚合物囊泡、介孔二氧化硅纳米粒、脂质体作为pH响应型纳米载体在肿瘤靶向药物递送系统中的研究进展,以期为后续研究提供参考。方法以'pH响应型''药物递送系统''靶向治疗'等为关键词,组合查询了在PubMed、Elsevier、SpringerLink、中国知网、万方、维普等数据库中的相关文献,并对其中的30篇中外文献进行归纳、分析、总结。结果 pH响应型纳米载体是一类能够根据外界pH的变化而改变自身物理化学性质的功能性聚合物,从而达到靶向控释药物。近年来,由于其独特的刺激响应功能,在药物递送、疾病诊断及生物医学成像等方面有广泛的应用。结论 pH响应型纳米载体在肿瘤靶向药物递送系统中有着广阔的应用前景。

关键词：药剂学药物递送系统综述纳米载体 pH响应型肿瘤治疗

基于增值寿命的既有建筑节能改造综合效益构成及其影响因素分析

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再生资源与循环经济 2023年第1期16卷 4-7页

作者：郭汉丁张印贤崔斯文天津仁爱学院经济与管理学院天津301636 天津城建大学经济与管理学院天津300384 天津城建大学生态宜居城市与可持续建设管理研究中心天津300384

既有建筑节能改造具有价值增值的显著效益,基于增值寿命周期的既有建筑节能改造综合效益评价从建筑功能改善与寿命延长考虑其价值度量,涵盖经济效益、社会效益和环境效益3个层面。探讨基于增值寿命周期的既有建筑节能改造综合效益的度... 详细信息

既有建筑节能改造具有价值增值的显著效益,基于增值寿命周期的既有建筑节能改造综合效益评价从建筑功能改善与寿命延长考虑其价值度量,涵盖经济效益、社会效益和环境效益3个层面。探讨基于增值寿命周期的既有建筑节能改造综合效益的度量问题,需要从既有建筑节能改造活动及其效益分析入手,基于增值生命周期视角,解析既有建筑节能改造综合效益构成关系,剖析既有建筑节能改造综合效益影响因素,以准确把握基于增值寿命的既有建筑节能改造价值特性。

关键词：既有建筑节能改造增值寿命综合效益构成分析影响因素

A Novel Model for Describing Rail Weld Irregularities and Predicting Wheel-Rail Forces Using a Machine Learning Approach

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Computer Modeling in Engineering & Sciences 2025年第1期142卷 555-577页

作者： Linlin Sun Zihui Wang Shukun cui Ziquan Yan Weiping Hu Qingchun Meng State Key Laboratory of High-Speed Railway Track System China Academy of Railway Sciences Corporation LimitedBeijing100081China Railway Engineering Research Institute China Academy of Railway Sciences Corporation LimitedBeijing100081China School of Aeronautic Science and Engineering Beihang UniversityBeijing100191China

Rail weld irregularities are one of the primary excitation sources for vehicle-track interaction dynamics in modern high-speed *** can cause significant wheel-rail dynamic interactions,leading to wheel-rail noise,component damage,and *** researchers have employed the vehicle-track interaction dynamic model to study the dynamic interactions between wheel and rail induced by rail weld geometry ***,the cosine wave model used to simulate rail weld irregularities mainly focuses on the maximum value and neglects the geometric *** this study,novel theoretical models were developed for three categories of rail weld irregularities,based on measurements of the high-speed railway from Beijing to *** vertical dynamic forces in the time and frequency domains were compared under different running *** forces generated by the rail weld irregularities that were measured and modeled,respectively,were compared to validate the accuracy of the proposed ***,based on the numerical study,the impact force due to rail weld irrregularity is modeled using an Artificial Neural Network(ANN),and the optimum combination of parameters for this model is *** results showed that the proposed model provided a more accurate wheel/rail dynamic evaluation caused by rail weld irregularities than that established in the *** ANN model used in this paper can effectively predict the impact force due to rail weld irrregularity while reducing the computation time.

关键词： Rail weld irregularity high-speed railway vehicle-track coupled dynamics wheel/rail dynamic vertical force artificial neural networks

印度河55号公路12B项目岩石爆破技术与特点

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工程爆破 1998年第2期4卷 60-64页

作者：林从谋尤春安逄焕东崔思文山东矿业学院

细介绍了印度河５５号公路１２Ｂ项目道路岩石爆破技术与特点。对公路工程石方爆破中常出现的诸如岩石爆破块度控制、爆堆控制、爆破飞石与地震控制及降低爆破费用等问题，提出了相应的对策。

关键词：公路施工深孔台阶爆破爆破参数岩石爆破

CaH2-promoted activity of Ni-carbonate interface for CO2 methanation

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Journal of Energy Chemistry 2025年第1期100卷 522-532页

作者： Jin-Peng Wang Guo-cui Mao Hui-Lin Jiang Bao-Xia Dong Yun-Lei Teng School of Chemistry and Chemical Engineering Yangzhou University

Transition metal-carbonate interfaces often act as active sites in heterogeneous catalytic *** interface between transition metal and metal carbonate exhibits a dynamic equilibrium during the CO2hydrogenation reaction,involving surface carbonate hydrogenation and ***,there have been few reports on engineering the activity of the interface between transition metal and alkaline earth metal carbonate for catalytic *** work demonstrated that the incorporation of CaH2in Ni/CaCO3enhances the CO2methanation activity of the *** CO2conversion for Ni/CaH2-CaCO3reached 68.5%at 400°C,which was much higher than that of the Ni/CaCO3（31.6%） and Ni/CaH2-CaO （42.4%） ***,the Ni/CaH2-CaCO3catalysts remained stable during the stability test for 24 h at 400°C and 8 *** research revealed that CaH2played a crucial role in promoting the activity of the Ni-carbonate interface for ***2could modify the electronic structure of Ni and tune the structural properties of CaCO3to generate medium basic sites （OH groups）,which are favorable for the activation of H2and ***-situ Fourier transform infrared spectroscopy （FTIR） analysis combined with density functional theory calculations demonstrated that CO2activation occurs at the hydroxyl group （OH） on the CaH2-modified Ni-carbonate surface,leading to the formation of CO3H****,our study has confirmed that CO2methanation over the Ni/CaH2-CaCO3catalysts proceeds via the formate pathway.

关键词： Metal hydride Ni catalysts Carbonate Metal-carbonate interface