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China Petroleum Processing & Petrochemical Technology 2016年第3期18卷 110-118页

作者： Lu Yudi Sun Jianlin zhang bingtao School of Materials Science and Engineering University of Science and Technology Beijing

A new kind of emulsion containing nano TiO_2 was developed through the dispersion experiment. A commercial emulsion and a prepared by our lab emulsion without nano particles were chosen as controls to test the tribological and antibacterial properties of this new emulsion. The load carrying capacity, friction coefficient and average diameter of wear scars were tested by a four-ball machine and the comprehensive antifriction parameter ω was calculated. The wetting angle was also tested using a JC200C1 wetting angle tester. The micro surface and roughness of rolled strips were analyzed to investigate the tribological performance of the recommended new emulsion in strip production. It is shown that the new nano-emulsion possesses a higher load carrying capacity and wetting ability. Therefore the abrasive/plowing wear is reduced more efficiently with the addition of nano particles, and the micro surface is improved. The density of bacteria in the emulsions was tested after the cold rolling experiment. The emulsion breaking ratio and bacteria density were also tested in different time intervals after the cold rolling experiment. The final p H values and bacteria density of different layers of emulsions were measured and the sediment was analyzed by TEM to evaluate the antibacterial behavior of this new emulsion. It is shown that the density of microbial colonies which led to a corruption of emulsions was decreased about 90% and the effective antibacterial period was prolonged.

关键词： nano TiO2 dispersion emulsion, lubricant, antibacterial

Brain Functional Network Based on Small-Worldness and Minimum Spanning Tree for Depression Analysis

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Journal of Beijing Institute of Technology 2023年第2期32卷 198-208页

作者： bingtao zhang Dan Wei Yun Su Zhonglin zhang School of Electronic and Information Engineering Lanzhou Jiaotong UniversityLanzhou 730070China College of Computer Science and Engineering Northwest Normal UniversityLanzhou 730070China

Since the outbreak and spread of corona virus disease 2019(COVID-19),the prevalence of mental disorders,such as depression,has continued to *** explore the abnormal changes of brain functional connections in patients with depression,this paper proposes a depression analysis method based on brain function network(BFN).To avoid the volume conductor effect,BFN was constructed based on phase lag index(PLI).Then the indicators closely related to depression were selected from weighted BFN based on small-worldness(SW)characteristics and binarization BFN based on the minimum spanning tree(MST).Differences analysis between groups and correlation analysis between these indicators and diagnostic indicators were performed in *** resting state electroencephalogram(EEG)data of 24 patients with depression and 29 healthy controls(HC)was used to verify our proposed *** results showed that compared with HC,the information processing of BFN in patients with depression decreased,and BFN showed a trend of randomization.

关键词： depression brain function network(BFN) small-worldness(SW) minimum spanning tree(MST)

3DMKDR:3D Multiscale Kernels CNN Model for Depression Recognition Based on EEG

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Journal of Beijing Institute of Technology 2023年第2期32卷 230-241页

作者： Yun Su Zhixuan zhang Qi Cai bingtao zhang Xiaohong Li School of Computer Science and Engineering Northwest Normal UniversityLanzhou 730070China School of Electronic and Information Engineering Lanzhou Jiaotong UniversityLanzhou 730070China

Depression has become a major health threat around the world,especially for older people,so the effective detection method for depression is a great public health ***(EEG)can be used as a biomarker to effectively explore depression *** by the studies that multiple smaller scale kernels could increase nonlinear expression compared to a larger kernel,this article proposes a model named the three-dimensional multiscale kernels convolutional neural network model for the depression disorder recognition(3DMKDR),which is a three-dimensional convolutional neural network model with multiscale convolutional kernels for depression recognition based on EEG signals.A three-dimensional structure of the EEG is built by extending one-dimensional feature sequences into a two-dimensional electrode matrix to excavate the related spatiotemporal information among electrodes and the collected electrode *** the major depressive disorder(MDD)and the multi-modal open dataset for mental-disorder analysis(MODMA)datasets,the experiment shows that the accuracies of depression recognition are up to99.86%and 98.01%in the subject-dependent experiment,and 95.80%and 82.27%in the subjectindependent experiment,which are higher than alternative competitive *** experimental results demonstrate that the proposed 3DMKDR is potentially useful for depression recognition in older persons in the future.

关键词： major depression disorder(MDD) electroencephalogram(EEG) three-dimensional convolutional neural network(3D-CNN) spatiotemporal features

Performance prediction of expressway pavement in high maintenance level areas based on cosine deterioration equation: A case study of Zhejiang Province in China

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Journal of Road Engineering 2022年第3期2卷 267-278页

作者： Liping Cao Lingwen Li Chen Yang bingtao zhang Zejiao Dong School of Transportation Science and Engineering Harbin Institute of TechnologyHarbin 150090China Highway Administration of Jilin Province Changchun 130021China

Accurate prediction of performance decay law is an important basis for long-term planning of maintenance *** statistical regression prediction model is the most widely employed method to calculate pavement performance due to its advantages such as the small amount of calculation and good accuracy,but the traditional prediction model seems not applicable to the high maintenance level areas with excellent pavement *** this paper,the service life and the cumulative number of the axle load were determined as the independent variables of prediction models of pavement *** pavement condition index(PCI)and rutting depth index(RDI)were selected as maintenance decision control indexes to establish the unified prediction model of PCI and RDI respectively by applying the cosine deterioration *** reveal that the deterioration law of PCI presents an anti-S type or concave type and the deterioration law of RDI shows an obvious concave *** prediction model proposed in this study added the pavement maintenance standard factor d,which brings the model parameterα(reflecting the road life)and the deterioration equations are more applicable than the traditional standard *** is found that the fitting effects of PCI and RDI prediction models with different traffic grades are relatively similar to the actual service state of the pavements.

关键词： High maintenance level area Pavement performance prediction Statistical regression model Cosine deterioration equation

全面提升装备水平探索创新维护管理确保铁路第六次大提速顺利实施

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中国铁路 2007年第3期 34-37,52页

作者：张秉涛济南铁路局电务处处长山东济南250001

济南铁路局电务处以铁路第六次大提速为核心,从技术管理和专业管理出发,强化CTCS、CTC、GSM-R三大电务系统的施工管理;制定适应200km/h及以上列车开行的设备维护管理标准体系,细化各项新技术设备规范和整治标准;培训新技术人才;组建三... 详细信息

济南铁路局电务处以铁路第六次大提速为核心,从技术管理和专业管理出发,强化CTCS、CTC、GSM-R三大电务系统的施工管理;制定适应200km/h及以上列车开行的设备维护管理标准体系,细化各项新技术设备规范和整治标准;培训新技术人才;组建三级设备维护网,明确各级维护职责;实行200km/h及以上区段综合天窗修,根据设备性质部分实施状态修,GSM-R委托修的维护方式;完善应急预案,构建电务维护应急网络。

关键词：铁路提速施工安全设备维护电务系统济南铁路局

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慈善捐赠行为对居民主观幸福感的影响研究

中国软科学 2023年第S1期 26-38页

作者：张冰涛毛桂蓉苏剑深圳大学中国经济特区研究中心广东深圳518060 山东大学经济研究院山东济南250100

高质量发展背景下,人民对美好生活的向往日益强烈,增进人民幸福逐渐成为社会关注的重大议题.使用2018年中国家庭追踪调查(CFPS),实证分析个体慈善捐赠行为对其主观幸福感的影响及作用机制.研究发现,慈善捐赠行为对居民幸福感具有正向且... 详细信息

高质量发展背景下,人民对美好生活的向往日益强烈,增进人民幸福逐渐成为社会关注的重大议题.使用2018年中国家庭追踪调查(CFPS),实证分析个体慈善捐赠行为对其主观幸福感的影响及作用机制.研究发现,慈善捐赠行为对居民幸福感具有正向且稳健的提升作用.机制分析发现,提升社会关联能力、提高社会地位以及增加积极情绪是慈善捐赠行为影响居民幸福感的重要渠道.异质性分析发现,慈善捐赠行为对居民幸福感的积极作用在高收入满意度人群、城镇人群、低学历人群、中年人群,以及北方和西部地区样本中表现更为明显.研究结果为当下增进人民福祉、不断实现人民群众对美好生活的向往提供了新的思路和见解.

关键词：慈善捐赠行为主观幸福感社会关联能力社会地位积极情绪

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抑制性建言：影响因素与实施效果

心理科学 2019年第5期42卷 1180-1185页

作者：张炳涛卿涛杨付张友欣西南财经大学工商管理学院

抑制性建言(prohibitive voice)是近年来建言行为领域的一个新兴话题,其强调的是对防危问题的关注而不是工作创新改进,是组织健康的一种重要保障。研究者主要从抑制性建言的概念、测量及实证研究等方面,对国内外研究进行系统性的评述及... 详细信息

抑制性建言(prohibitive voice)是近年来建言行为领域的一个新兴话题,其强调的是对防危问题的关注而不是工作创新改进,是组织健康的一种重要保障。研究者主要从抑制性建言的概念、测量及实证研究等方面,对国内外研究进行系统性的评述及梳理。未来研究应注意从个体情境互动视角探究抑制性建言的诱因、双刃剑效应视角识别抑制性建言的实施效果和对抑制性建言的中国本土化权变作用等方面继续努力完善。

关键词：抑制性建言双刃剑效应中国本土化

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聚偏氟乙烯膜研究进展

河南科技 2021年第8期40卷 119-122页

作者：张兵涛山东金汇膜科技股份有限公司山东招远265400

聚偏氟乙烯(Polyvinylidene fluoride,PVDF)膜由于具有良好的热稳定性和优秀的化学性能被广泛应用于化学研究和工业生产。本文总结了聚偏氟乙烯膜在膜生物反应器、膜接触器以及吸附膜方面的研究进展。

关键词：聚偏氟乙烯膜生物反应器膜接触器膜吸附

Measure Technology for Strongly Swirling Fluid Flow in Cyclone Separators:Application and Comparison

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Measure Technology for Strongly Swirling Fluid Flow in Cyclo...

The 5th International Symposium on Measurement Techniques for Multiphase Flows(5th ISMTMF)

作者： bingtao Zhao~* Jianmin zhang Shouyu zhang College of Power Engineering University of Shanghai Science and Technology No.516 Jungong Road Shanghai 200093 China

＜正＞Three representative measurement technologies,Multiple Holes Pitot Tubes（MHPT）,Laser Doppler Velocimetry（LDV）and Particle Image Velocimetry（PIV）on the strongly turbulent and swirling flow in the conventional cyclone separator,are described in the present *** experimental data are analyzed and compared in order to evaluate the accuracy level of these *** comparison results show that these measurement technologies agree with each other well in general for mean velocity in cyclone *** addition,the calibrated MHPT method is simple with not much difference in measured ***,as the new and modem methods,LDV and PIV technology can provide the fluid flow characteristics in detail,including the turbulent parameters even gas-particle two phases flows and avoid the effect of intrusion on flow pattern.

关键词： Cyclone separator swirling flow measurement technology

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均质纤维素膜的制备及其正渗透性能研究

中国工程科学 2014年第7期16卷 57-61页

作者：张兵涛张林黄和侯立安南京工业大学生物与制药工程学院材料化学工程国家重点实验室南京210009 浙江大学生物质化工教育部重点实验室、化学工程与生物工程学系杭州310027 第二炮兵后勤科学技术研究所北京100011

以纤维素(cellulose)为膜材料,离子液体1-乙基-3甲基咪唑醋酸盐(EMIMAc)为溶剂,水为非溶剂,无纺布作为支撑层,通过相转化法制备了纤维素均质膜。采用红外、X-射线衍射和扫描电子显微镜表征了膜的结构及形貌,考察了该膜的正渗透性能。结... 详细信息

以纤维素(cellulose)为膜材料,离子液体1-乙基-3甲基咪唑醋酸盐(EMIMAc)为溶剂,水为非溶剂,无纺布作为支撑层,通过相转化法制备了纤维素均质膜。采用红外、X-射线衍射和扫描电子显微镜表征了膜的结构及形貌,考察了该膜的正渗透性能。结果表明:纤维素溶解再生过程中没有发生化学变化,但晶型发生了转变;当原料液为0.6 mol/L的氯化钠水溶液,汲取液为特制的营养液时,所制备的正渗透膜的水通量为3.534 L/(m2·h),截盐率达到99%以上。

关键词：正渗透离子液体纤维素膜相转化膜制备