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岩溶隧道突水突泥防突评判方法及其工程应用

中南大学学报（自然科学版） 2018年第10期49卷 2533-2544页

作者：黄鑫林鹏许振浩李术才潘东东高斌李召峰山东大学岩土与结构工程研究中心山东济南250061 山东大学齐鲁交通学院山东济南250061 中国地质科学院北京100037

为实现对岩溶隧道安全性的快速评价,采用统计与理论分析相结合的方法,针对岩溶隧道突水突泥灾害的灾害源和防突结构,选取水动力条件、不良地质、防突厚度及围岩特征这4个方面因素,建立一种适用于工程现场的突水突泥快速判识方法即岩溶... 详细信息

为实现对岩溶隧道安全性的快速评价,采用统计与理论分析相结合的方法,针对岩溶隧道突水突泥灾害的灾害源和防突结构,选取水动力条件、不良地质、防突厚度及围岩特征这4个方面因素,建立一种适用于工程现场的突水突泥快速判识方法即岩溶隧道突水突泥防突评判方法(PSAM法),构建突水突泥防突评判影响因素指标体系,即以防突厚度、水压力特征、不良地质、岩体质量和完整性为主要影响因素,围岩节理状态、水源补给条件、水力连通性、岩石强度为次要影响因素,岩层走向与倾角、地应力、岩体透水性特征为修正因素,提出各影响因素的分类方法和等级划分体系,形成适用于工程现场快速查询与评判的影响因素分级与评分表,阐述防突评判实施流程。将该评判方法应用于宜万(湖北宜昌—重庆万县)铁路野三关隧道"602.腔"大型突水突泥灾害工程。研究结果表明:该评判方法克服了现有突水突泥风险评价不能描述防突结构围岩特征及厚度影响作用的不足以及传统最小安全厚度计算方法针对孕险环境和围岩特征等重要影响因素考虑不全面的欠缺;工程应用结果验证了该评判方法的科学性和实用性。

关键词：岩溶隧道突水突泥防突结构防突厚度防突评判方法

HCMV Infection Depress NGF Expression in Human Glioma Cells

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Virologica Sinica 2009年第3期24卷 209-214页

作者： Hai-tao WANG bin WANG Zhi-jun liU Zhi-qiang BAI ling li Dong-meng QIAN Zhi-yong YAN xu-xia SONG Department of Microbiology Qingdao Medical College and Key Laboratory of Medicine and Biotechnology of Qingdao Qingdao University Medical College Qingdao 266071 China Qingdao Center for Disease control and Prevention Qingdao 266033 China RB 2.0E University of Massachusetts Medical School Worcester MA. 01605 USA

Human cytomegalovirus （HCMV） is the most common cause of congenital infection, resulting in birth defects such as microcephaly. In this study, RT-PCR and Western Blotting were performed to quantify the regulation of endogenic nerve growth factor expression in neuroglia ceils by HCMV infection. The results showed that basal, endogenous NGF expression in U2.1 was unchanged during early HCMV infection. NGF expression is strongly down-regulated during the latent phase of infection. These results suggest that HCMV can depress the NGF expression in U2.1 cells.

关键词： Human cytomegalovirus (HCMV) U2.1 cell Nerve growth factor (NGF)

Boosted lithium storage performance by local build-in electric field derived by oxygen vacancies in 3D holey N-doped carbon structure decorated with molybdenum dioxide

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Journal of materials science & Technology 2023年第11期142卷 185-195页

作者： Chuanxin Hou Wenyue Yang Hideo Kimura Xiubo Xie Xiaoyu Zhang xueqin Sun Zhipeng Yu Xiaoyang Yang Yuping Zhang bin Wang Ben bin xu Deepak Sridhar Hassan Algadi Zhanhu Guo Wei Du school of Environmental and Material engineering Yantai UniversityYantai 264005China shandong Laboratory of Yantai Advanced materials and Green Manufacturing Yantai 264005China Department of Chemical&Biomolecular engineering University of TennesseeKnoxvilleTN 37996USA College of materials science and {2. Taiyuan University of Science and TechnologyTaiyuan 030024China Mechanical and Construction engineering Faculty of Engineering and EnvironmentNorthumbria UniversityNewcastle Upon Tyne NE18STUK Zentek Ltd. 24 Corporate CourtGuelphON N1G 5G5Canada Department of Electrical engineering Faculty of EngineeringNajran UniversityNajran 11001Saudi Arabia Integrated Composites Laboratory(ICL) Mechanical and Construction EngineeringFaculty of Engineering and EnvironmentNorthumbria UniversityNewcastle Upon TyneNE18STUK

Three-dimensional holey nitrogen-doped carbon matrixes decorated with molybdenum dioxide(MoO_(2.)nanoparticles have been successfully synthesized via a NaCl-assisted template *** obtained MoO_(2./C composites offered multi-advantages,including higher specific surface area,more active sites,more ions/electrons transmission channels,and shorter transmission path due to the synergistic effect of the uniformly distributed MoO_(2. nanoparticles and porous carbon ***,the oxygen vacancies were introduced into the prepared composites and enhanced the li^(+)intercalation/deintercalation process during electrochemical cycling by the Coulomb *** existence of the local built-in electric field was proved by experimental data,differential charge density distribution,and density of states *** uniquely designed structure and introduced oxygen vacancy defects endowed the MoO_(2./C composites with excellent electrochemical *** view of the synergistic effect of the uniquely designed morphology and introduced oxygen vacancy defects,the MoO_(2./C composites exhibited superior electrochemical performance of a high capacity of 918.2.mAh g^(-1) at 0.1 A g^(-1) after 130 cycles,56{2. mAh g^(-1) at 1.0 A g^(-1) after 1000 cycles,and a capacity of 181.2. mAh g^(-1) even at 2..0 A g^(-1).This strategy highlights the path to promote the commercial application of MoO_(2.-based and other transition metal oxide electrodes for energy storage devices.

关键词： MoO_(2./C hybrid 3D holey structure Oxygen vacancies lithium-ion batteries

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智能公路发展现状与关键技术

中国公路学报 2019年第8期32卷 1-24页

作者：徐志刚李金龙赵祥模李立王忠仁童星田彬侯俊汪贵平张骞长安大学车联网教育部-中国移动联合实验室陕西西安710064 加利福尼亚交通厅加利福尼亚萨克拉门托CA95833 齐鲁交通信息集团有限公司山东济南250102 长安大学电子与控制工程学院陕西西安710064 东软集团软件架构新技术国家重点实验室辽宁沈阳110179

借鉴美国自动公路系统(Automated Highway Systems, AHS)技术框架,系统回顾了初级应用、通信技术、绿色能源技术、自动驾驶技术等不同因素驱动下智能公路的概念演化、技术发展和未来变革。根据当前信息技术的发展趋势,在AHS的研究基础... 详细信息

借鉴美国自动公路系统(Automated Highway Systems, AHS)技术框架,系统回顾了初级应用、通信技术、绿色能源技术、自动驾驶技术等不同因素驱动下智能公路的概念演化、技术发展和未来变革。根据当前信息技术的发展趋势,在AHS的研究基础上延伸和扩展了智能公路的概念和技术框架,提出了未来智能公路系统的演化方向以及包含信息管理层、网络通信层和感应控制层的智能公路体系架构。同时,瞄准当前主流技术和未来科技发展方向,总结了泛在无线通信、高精度定位与导航、车辆队列控制、无线充电、道路智能材料、道路主动安全控制、面向出行即服务的车路信息交互、基于基础设施的智能决策规划等驱动智能公路快速发展的新兴技术研究现状,并基于这8项关键技术的自身发展特点,提出了未来智能公路技术应用和推广的建议措施;分析了车路协同一体化、智能平行系统、人工智能、交通信息安全、自动驾驶等新兴技术将对未来智能公路发展带来的冲击和影响;系统性地预测了智能公路技术的商业化推广路线以及未来智能公路的应用将进一步降低自动驾驶的技术设备成本,为自动驾驶提供了一个更安全、更稳定和高效的交通环境。研究成果将对当前和未来智能公路的技术研发和工程应用具有一定指导意义。

关键词：交通工程智能公路综述智能交通系统道路基础设施平行智能公路车路协同

Exfoliation corrosion of extruded Mg-li-Ca alloy

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Journal of materials science & Technology 2018年第9期34卷 1550-1557页

作者： Zi-You Ding Lan-Yue Cui Rong-Chang Zeng Yan-bin Zhao Shao-Kang Guan Dao-Kui xu Cun-Guo lin College of materials science and {2. Shandong University of Science and Technology Qingdao 266590 China school of materials {2. and engineering Zhengzhou University Zhengzhou 450002 China CAS Key Laboratory of Nuclear materials and Safety Assessment Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 China science and Technology on Marine Corrosion and Protection Laboratory Qingdao 266071 China Qingdao Branch of Luoyang Ship Material Research Institute Qingdao 266101 China

Exfoliation on as-extruded Mg-1 li-1 Ca magnesium alloy was investigated after an immersion in 3.5 wt%NaCl aqueous solution for 90, 12. and 150 days through optical microscope, digital camera, scanning electron microscope, electrochemical workstation, scanning Kalvin probe, X-ray diffraction and Fourier transform infrared spectroscope. The results demonstrated that exfoliation corrosion occurred on extruded Mg-1 li-1 Ca alloy due to elongated microstructure parallel to surface, and delamination of lamellar structure resulted from galvanic effect and wedge effect. Skin layer with fine grains exhibited better corrosion resistance, whereas the interior with coarse grains and the intermetallic compound,Mg2.Ca particles existing in a fibrous structure, dispersed along grain boundaries and extrusion direction in a line. Furthermore, galvanic effect between Mg2.Ca particles and their neighboring a-Mg matrix facilitated dissolution of Mg2.Ca particles and a-Mg matrix; wedge effect was caused by formation of corrosion products. Exfoliation corrosion of extruded Mg-li-Ca alloys might be a synergic effect of pitting corrosion,filiform corrosion, intergranular corrosion and stress corrosion. Finally, exfoliation corrosion mechanism was proposed.

关键词： Magnesium-lithium alloy Exfoliation corrosion Intermetallic compound Extrusion Microstructure

结合降噪自编码与极限学习机的LTE上行干扰分析

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吉林大学学报（工学版） 2022年第1期52卷 195-203页

作者：许鸿奎姜彤彤李鑫姜斌祥王永雷山东建筑大学信息与电气工程学院济南250101 山东建筑大学山东省智能建筑技术重点实验室济南250101 中国政法大学青少年犯罪与少年司法研究中心北京100088 湖南亿恩科技有限公司AI研究院山东青岛266000

针对长期演进LTE网络上行干扰分类模型中噪声敏感、训练时间长的问题,建立了结合堆栈降噪自编码器与极限学习机的LTE网络上行干扰分析模型。使用上行干扰原始数据无监督地预训练堆栈降噪自编码(SDAE)提取高层抽象特征,并为极限学习机(E... 详细信息

针对长期演进LTE网络上行干扰分类模型中噪声敏感、训练时间长的问题,建立了结合堆栈降噪自编码器与极限学习机的LTE网络上行干扰分析模型。使用上行干扰原始数据无监督地预训练堆栈降噪自编码(SDAE)提取高层抽象特征,并为极限学习机(ELM)分类器提供初始参数。该模型发挥了ELM收敛快和SDAE抑制噪声的优势,同时克服了ELM参数随机赋值造成的鲁棒性不足的问题。实验结果表明,该模型提高了LTE网络上行干扰分析的效率,并具有较强的鲁棒性。

关键词： LTE网络上行干扰降噪自编码器极限学习机特征提取

Characteristics of Amine Surfactant Modified Peanut Shell and Its Sorption Property for Cr（VI）

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Chinese Journal of Chemical engineering 2013年第11期21卷 1260-1268页

作者：岳敏张猛刘斌许醒李小明岳钦艳马春元 school of Environm-ental science and {2. Shandong University Jinan 250100 China Postdoctoral Research Station of Power engineering and engineering Thermophysics Shandong University Jinan250063 China shandong Quality Inspection Center for Medical Devices Jinan 250101 China

Modified peanut shell （MPS） was prepared by amination reaction with peanut shell （PS） as the starting material The sorption of Cr（VI） oxyanions on MPS in static and column tests were investigated. In addition, the sorption isotherm and kinetic models were applied to confirm the sorption capacity and the sorption mechanisms. BET surface area anysis showed the physicochemical characterist!cs of the samples. The results of zeta potential,Fourier transform infrared （FT-IR） and Raman spectra analysis illustrated that chemical adsorption and ion exi change are the potential sorption mechanism. The static sorption test showed that the maximum sorption capacity （qm） of MPS for Cr（VI） increased with temperature, which indicated that the Cr（VI） sorption rocess was endothermic. The saturated sorption capacity of Cr（VI） in the colunm sorption test was 138.34 mg.g-1, which accounted for 93.9% of the qmax at 2. ℃. The regeneration capacity of MPS was evaluated using HC1 solution as an eluent. The high regeneration efficiency （82.6%） validated the dominance of the ion exchange mechanism in the Cr（VI） sorption process with C1ions displacing Cr（VI） oxyanion on MPS. The Langmuir isotherm model showed a higher correlation coefficient than the other adsorption isotherm models. And in the kinetic study, a pseudo-second-order model fit the data best.

关键词： modified peanut shell amination Cr(VI) adsorption mechanism

New innovations in pavement materials and engineering:A review on pavement engineering research 2.2.

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Journal of Traffic and Transportation engineering(English Edition) 2021年第6期8卷 815-999页

作者： JTTE Editorial Office Jiaqi Chen Hancheng Dan Yongjie Ding Yangming Gao Meng Guo Shuaicheng Guo bingye Han bin Hong Yue Hou Chichun Hu Jing Hu Ju Huyan Jiwang Jiang Wei Jiang Cheng {2. Pengfei {2.u Yu {2.u Zhuangzhuang {2.u Guoyang Lu Jian Ouyang Xin Qu Dongya Ren Chao Wang Chaohui Wang Dawei Wang Di Wang Hainian Wang Haopeng Wang Yue Xiao Chao Xing Huining xu Yu Yan xu Yang {2.ngyun You Zhanping You bin Yu Huayang Yu Huanan Yu Henglong Zhang Jizhe Zhang Changhong Zhou Changjun Zhou Xingyi Zhu Editorial Office of Journal of Traffic and Transportation engineering(English Edition) Chang’an UnivieristyXi’an 710064China school of Civil engineering Central South UniversityChangsha 410075China school of Civil engineering Chongqing Jiaotong UniversityChongqing 400074China Department of Structural engineering Faculty of Civil Engineering and GeosciencesDelft University of TechnologyDelft 2628 CNthe Netherlands The Key Laboratory of Urban Security and Disaster engineering of Ministry of Education Beijing University of TechnologyBeijing 100124China College of Civil engineering Hunan UniversityChangsha 410082China school of Civil and Transportation engineering Beijing University of Civil Engineering and ArchitectureBeijing 100044China school of Transportation science and {2. Harbin Institute of TechnologyHarbin 150090China College of Metropolitan Transportation Beijing University of TechnologyBeijing 100124China school of Civil engineering&Transportation South China University of TechnologyGuangzhou 510641China school of Transportation Southeast UniversityNanjing 211189China Department of Civil&Environmental engineering University of WaterlooWaterlooON N2L 3G1Canada Department of Civil and Environmental engineering The Hong Kong Polytechnic UniversityHong KongChina school of Highway Chang’an UniversityXi’an 710064China Institute of Highway engineering RWTH Aachen UniversityAachen 52074Germany school of Transportation&Logistics Dalian University of TechnologyDalian 116024China school of Civil engineering Southwest Jiaotong UniversityChengdu 611756China Faculty of Architecture Civil and Transportation EngineeringBeijing University of TechnologyBeijing 100124China Department of Civil engineering Aalto UniversityEspoo 02150Finland Nottingham Transportation engineering Center(NTEC) University of NottinghamNottingham NG72RDUK State Key Laboratory of Silicate materials for Architectures Wuhan University of TechnologyWuhan 430070China College of Transportation Engineer

Sustainable and resilient pavement infrastructure is critical for current economic and environmental *** the past 10 years,the pavement infrastructure strongly supports the rapid development of the global social *** theories,new methods,new technologies and new materials related to pavement {2. are *** of pavement infrastructure is a typical multi-physics *** of actual coupled behaviors of traffic and environmental conditions,predictions of pavement service life become more and more complicated and require a deep knowledge of pavement material *** order to summarize the current and determine the future research of pavement {2.,Journal of Traffic and Transportation {2.(English Edition)has launched a review paper on the topic of"New innovations in pavement materials and {2.:A review on pavement {2. research 2.2.".Based on the joint-effort of 43 scholars from 2. well-known universities in highway {2.,this review paper systematically analyzes the research status and future development direction of 5 major fields of pavement {2. in the *** content includes asphalt binder performance and modeling,mixture performance and modeling of pavement materials,multi-scale mechanics,green and sustainable pavement,and intelligent ***,this review paper is able to provide references and insights for researchers and engineers in the field of pavement {2..

关键词： Asphalt binder Asphalt mixture Modeling of pavement materials Multi-scale mechanics Green and sustainable pavement Intelligent pavement

链状Pt-Ni纳米颗粒的制备、表征及高效电催化性能

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物理学报 2020年第7期69卷 174-183页

作者：徐克欣夏田雨周亮李顺方蔡彬王荣明郭海中郑州大学物理学院(微电子学院) 郑州450052 北京科技大学数理学院北京材料基因工程高精尖创新中心磁光电复合材料与界面科学北京市重点实验室北京100083 山东师范大学光场调控及应用协同创新中心济南250358

开发高效、稳定的电催化剂是燃料电池走向实用的关键.为了解决催化剂因尺寸效应引起的催化活性和稳定性之间的矛盾,采用简便的一步溶剂热法设计合成了具有一维链状结构的Pt-Ni合金纳米颗粒催化剂.链状Pt-Ni纳米颗粒由平均尺寸约为10 nm... 详细信息

开发高效、稳定的电催化剂是燃料电池走向实用的关键.为了解决催化剂因尺寸效应引起的催化活性和稳定性之间的矛盾,采用简便的一步溶剂热法设计合成了具有一维链状结构的Pt-Ni合金纳米颗粒催化剂.链状Pt-Ni纳米颗粒由平均尺寸约为10 nm的纳米颗粒和直径约为3 nm,长度为几百纳米的纳米线组装而成,该结构具有零维纳米颗粒高的比表面积和一维纳米线高的结构稳定性优势,可显著提高甲醇氧化反应的催化活性和稳定性,其质量活性和比活性分别是商业Pt/C纳米催化剂的5.7倍和7.6倍.经1000圈循环伏安测试后,该纳米材料仍保留91.2.的比活性,远高于商业Pt/C的4.4%.制备的一维链状结构很好地解决了纳米颗粒催化剂在反应中的团聚问题,为获得同时具有较高催化活性和稳定性的Pt基纳米催化剂提供了新的途径,有望实现大范围工业化应用.

关键词：链状Pt-Ni纳米颗粒一维组装纳米结构直接甲醇燃料电池