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Chinese Chemical Letters 2022年第5期33卷 2677-2680页

作者： Yuan Xue Fengfei Chen Bin Sun hualin lin Bin Dai Sheng Han School of Chemical and Environmental Engineering Shanghai Institute of TechnologyShanghai 201418China School of Chemistry and Chemical Engineering Shihezi UniversityShihezi 832003China School of Materials Science and Engineering University of Shanghai for Science and TechnologyShanghai 200093China

The high effective nano-hybrid pour point depressant(PPD)has attracted extensive attention for its po-tential application in improving the cold flow properties of diesel *** this paper,the nano-hybrid PPD was prepared by melt-blending method using three different alkyl chain lengths(i.e.,tetradecyl,hexade-cyl,and octodecyl)of n-alkyl methacrylate-maleic anhydride copolymers(R 1 MC-MA,R 1=C_(14),C_(16),C_(18))and SiO_(2)*** effect of those nano-hybrid PPDs on the cold filter plugging point(CFPP)and solidifying point(SP)depressing of diesel fuel were *** indicated that nano-hybrid PPD showed much better performance on diesel *** diesel fuel treated with 0.2 wt%C_(14)MC-MA/SiO_(2)nano-hybrid PPD exhibited the best depression in CFPP and SP by 6℃ and 18℃,respectively,which higher than that of single C 14 ***-temperature curves and polarized optical microscopy were conducted to explore the performance mechanism;and results presented that nano-hybrid PPD of C_(14)MC-MA/SiO_(2)could effectively lower the low-temperature viscosity,and modify the crystallization behavior and crystal morphology of ***,the cold flow properties of diesel were significantly improved.

关键词： Diesel fuel Pour point depressant Nano-hybrid Cold flow properties Crystallization behavior

医用钛合金表面改性及生物摩擦学性能研究进展

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应用技术学报 2024年第1期24卷 35-42页

作者：韩生王媛蔺华林晏金灿薛原王宸宸上海应用技术大学化学与环境工程学院上海201418

Ti-6Al-4V合金是目前应用最广泛的骨植入物材料,尤其应用在人工关节、骨椎弓根螺钉等植入物领域。然而,钛合金材料表面的耐磨性不足和生物惰性是种植体失效的重要因素。为了延长钛合金种植体的使用寿命,引入表面改性来提高钛合金的性能... 详细信息

Ti-6Al-4V合金是目前应用最广泛的骨植入物材料,尤其应用在人工关节、骨椎弓根螺钉等植入物领域。然而,钛合金材料表面的耐磨性不足和生物惰性是种植体失效的重要因素。为了延长钛合金种植体的使用寿命,引入表面改性来提高钛合金的性能是一种可行的解决方案。综述了钛合金材料的特性及当前存在的问题,随后对其表面生物摩擦学性能和生物活性的研究现状进行了一系列分析,并进一步综述了钛合金表面的改性手段。结果发现,通过对钛合金进行表面改性,同时提高其表面的生物摩擦学性能和生物活性,在基础科学技术上仍存在一定的挑战。因此,后续研究工作中应着重考虑钛合金表面多功能化处理设计探讨改性后的作用机理,这具有重要的理论意义和应用价值。

关键词： Ti-6Al-4V合金表面改性生物摩擦学生物活性

Effects of the chemical structure of surfactants on the stability of naphthenic oil-based metalworking fluids

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Chinese Chemical Letters 2020年第2期31卷 345-348页

作者： Yuan Xue Jinbao Liu Maiying Xie Fengfei Chen Mingan Zhou hualin lin Fan Zhang Shizhou Liu Zhiqiao Wu Sheng Han School of Chemical and Environmental Engineering Shanghai Institute of TechnologyShanghai 201418China Department of Science and Technology Shanghai Urban Construction Vocational CollegeShanghai 201415China College of Chemistry and Chemical Engineering Shanxi Datong UniversityDatong 037009China

In this study,various nonionic surfactants(NS) with different ethylene oxide(EO) numbers and tail lengths and its binary blends with anionic surfactants(AS) were used as emulsifiers for naphthenic oil to form the microemulsion metalworking fluids(MWFs),and the effects of them on the stability of the emulsion system were investigated by formulation triangle *** results indicated that binary complex surfactants of NS and AS as emulsifiers exhibited better emulsifying effect than that of single *** with different EO numbers and tail lengths presented various emulsifying ***(EO=10)exhibited the greatest number of stable formulations,especially the TX-10,but no linear relationship existed between the number of stable formulations and the tail length of *** addition,aromatic primary alcohol ethoxy late(APAE) series surfactants containing benzene groups similar to the cycloalkanes in the naphthenic oil so that presented the best emulsifying affect and the greatest number of stable *** co-surfactant of sodium dodecyl benzene sulfonate(SDBS) binary blends with NS exerted the best synergistic effect,and the stable formulations numbers were ranged from 5 to 7,next sodium stearate(SS) comes last followed by sodium dodecyl sulfate(SDS-1) and sodium dodecyl sulfonate(SDS-2).

关键词： Metal working fluid Emulsion stability Emulsifying effects Stable formulations Naphthenic oil

基于化工过程合成与分析课程的混合式翻转课堂教学模式探索与改革

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上海化工 2024年第3期49卷 60-63页

作者：王宸宸晏金灿邱丰蔺华林施达薛原韩生上海应用技术大学化学与环境工程学院上海201418

以化工过程合成与分析课程建设为立足点,顺应地方应用型大学的办学理念,优化现有课程体系,以期打破化学工程学科各专业课程之间的界限,实现课程体系的纵向深化和横向融通。依托“线上预习-翻转课堂-课后探究”的教学模式,提出了项目案... 详细信息

以化工过程合成与分析课程建设为立足点,顺应地方应用型大学的办学理念,优化现有课程体系,以期打破化学工程学科各专业课程之间的界限,实现课程体系的纵向深化和横向融通。依托“线上预习-翻转课堂-课后探究”的教学模式,提出了项目案例法、工程软件实践、信息化平台辅助及过程化考核4种混合式教学实践方法。通过以问题为导向的工科课程教学,实现对基础知识的深入理解和工程应用的拓展。

关键词：线上预习翻转课堂项目案例法课后探究

Deformation Characteristics of Hydrate-Bearing Sediments

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Journal of Ocean University of China 2024年第1期23卷 149-156页

作者： DONG lin LI Yanlong ZHANG Yajuan HU Gaowei LIAO hualin CHEN Qiang WU Nengyou Key Laboratory of Gas Hydrate Ministry of Natural ResourcesQingdao Institute of Marine GeologyQingdao 266237China Laboratory for Marine Mineral Resources Laoshan LaboratoryQingdao 266237China College of Oceanography Hohai UniversityNanjing 210098China College of Petroleum Engineering China University of Petroleum(East China)Qingdao 266555China

The safe and efficient development of natural gas hydrate requires a deep understanding of the deformation behaviors of *** this study,a series of triaxial shearing tests are carried out to investigate the deformation properties of hydrate-bearing *** of volumetric and lateral strains versus hydrate saturation are analyzed *** indicate that the sediments with high hydrate saturation show dilative behaviors,which lead to strain-softening characteristics during *** volumetric strain curves have a tendency to transform gradually from dilatation to compression with the increase in effective confining *** easy prediction model is proposed to describe the relationship between volumetric and axial *** model coefficientβis the key dominating factor for the shape of volumetric strain curves and can be determined by the hydrate saturation and stress ***,a modified model is established for the calculation of lateral *** corresponding determination method is provided for the easy estimation of model coefficients for medium sand sediments containing *** study provides a theoretical and experimental reference for deformation estimation in natural gas hydrate development.

关键词： gas hydrate deformation characteristics volumetric strain lateral strain prediction model

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云南先锋褐煤液化轻质油的分析

石油化工 2008年第11期37卷 1206-1210页

作者：黄珏张德祥蔺华林高晋生华东理工大学资源与环境工程学院上海200237

采用双球计量管法将云南先锋褐煤液化轻质油(简称褐煤液化轻质油)萃取分离为酸性组分、碱性组分和中性组分;用经典柱色谱法对中性组分进行族组成分离,分离为饱和烃、芳烃和极性化合物3种组分;通过气相色谱-质谱联用仪分析了酸性组分、... 详细信息

采用双球计量管法将云南先锋褐煤液化轻质油(简称褐煤液化轻质油)萃取分离为酸性组分、碱性组分和中性组分;用经典柱色谱法对中性组分进行族组成分离,分离为饱和烃、芳烃和极性化合物3种组分;通过气相色谱-质谱联用仪分析了酸性组分、碱性组分和芳烃的组成。实验结果表明,褐煤液化轻质油中酸性组分、碱性组分和中性组分的质量分数分别为23.46%,0.68%,75.86%;酸性组分主要为苯酚及其烷基衍生物,其中苯酚、甲酚和二甲酚的质量分数分别为16 11%,33.55%,14.44%;碱性组分以烷基吡啶为主,三甲基吡啶的质量分数为23.41%;中性组分以芳烃为主,芳烃中单环芳烃最多,双环芳烃其次,质量分数分别为37.91%,28.69%。

关键词：褐煤液化轻质油气相色谱-质谱分析族组分分离酚类化合物吡啶类化合物芳烃

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在传承中实现创新--浅谈小古文的教学

天津教育 2021年第23期 73-75页

作者：林华琳福建省厦门市金鸡亭小学

从小古文的定义入手,在界定定义的前提条件下,我们明白学习小古文的重大意义,进而找到学习小古文的最佳方法,在此基础上理解内容、体会情感、领会内涵,从而受到深刻的教育,同时在传承优秀传统文化中实现创新并不断地提高学生的综合能力... 详细信息

从小古文的定义入手,在界定定义的前提条件下,我们明白学习小古文的重大意义,进而找到学习小古文的最佳方法,在此基础上理解内容、体会情感、领会内涵,从而受到深刻的教育,同时在传承优秀传统文化中实现创新并不断地提高学生的综合能力,这就是我们教学的最终目的。

关键词：小古文综合能力传统文化

A fast forward computational method for nuclear measurement using volumetric detection constraints

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Nuclear Science and Techniques 2024年第2期35卷 47-63页

作者： Qiong Zhang lin-Lv lin University of Electronic Science and Technology of China Chengdu 610000China

Owing to the complex lithology of unconventional reservoirs,field interpreters usually need to provide a basis for interpretation using logging simulation *** the various detection tools that use nuclear sources,the detector response can reflect various types of information of the *** Monte Carlo method is one of the primary methods used to obtain nuclear detection responses in complex ***,this requires a computational process with extensive random sampling,consumes considerable resources,and does not provide real-time response ***,a novel fast forward computational method(FFCM)for nuclear measurement that uses volumetric detection constraints to rapidly calculate the detector response in various complex environments is ***,the data library required for the FFCM is built by collecting the detection volume,detector counts,and flux sensitivity functions through a Monte Carlo ***,based on perturbation theory and the Rytov approximation,a model for the detector response is derived using the flux sensitivity function method and a one-group diffusion *** environmental perturbation is constrained to optimize the model according to the tool structure and the impact of the formation and borehole within the effective detection ***,the method is applied to a neutron porosity tool for *** various complex simulation environments,the maximum relative error between the calculated porosity results of Monte Carlo and FFCM was 6.80%,with a rootmean-square error of 0.62 *** field well applications,the formation porosity model obtained using FFCM was in good agreement with the model obtained by interpreters,which demonstrates the validity and accuracy of the proposed method.

关键词： Nuclear measurement Fast forward computation Volumetric constraints

两亲性芳香族超支化聚酯的合成、表征及自组装研究

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有机化学 2015年第12期35卷 2655-2659页

作者：李天亮韩生蔺华林周永丰上海应用技术学院化学与环境工程学院奉贤201418 上海交通大学化学与化工学院闵行200240

以1,2,4-苯三酸酐和聚乙二醇(聚乙二醇300、聚乙二醇400、聚乙二醇600)为反应单体,首次通过缩聚法合成了一系列两亲性芳香族超支化聚酯.通过FT-IR、1H NMR、GPC、DSC、TGA对超支化聚酯的结构和性能进行了表征,结果表明,利用缩聚法成功... 详细信息

以1,2,4-苯三酸酐和聚乙二醇(聚乙二醇300、聚乙二醇400、聚乙二醇600)为反应单体,首次通过缩聚法合成了一系列两亲性芳香族超支化聚酯.通过FT-IR、1H NMR、GPC、DSC、TGA对超支化聚酯的结构和性能进行了表征,结果表明,利用缩聚法成功合成了两亲性超支化聚酯,并且两亲性超支化聚酯的热性能稳定.两亲性超支化聚酯在水中自组装成囊泡,可以用作微反应器和药物封装等.

关键词：缩聚超支化聚酯自组装囊泡

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吡啶抽提对不同显微组分煤结构特征的影响

煤炭转化 2014年第2期37卷 1-5页

作者：蔺华林李克健章序文中国神华煤制油化工有限公司上海研究院上海博士高级工程师201108

对神东上湾煤(SDR)及由其岩相分离得到的镜质组富集物(SDV)和惰质组富集物(SDI)进行了吡啶抽提,得到不同煤样的抽提率,并对抽提前后的煤样进行了13C-NMR,FTIR和XRD分析表征.结果表明,三种煤样的抽提率(质量分数)顺序为:镜质组富集物(15.... 详细信息

对神东上湾煤(SDR)及由其岩相分离得到的镜质组富集物(SDV)和惰质组富集物(SDI)进行了吡啶抽提,得到不同煤样的抽提率,并对抽提前后的煤样进行了13C-NMR,FTIR和XRD分析表征.结果表明,三种煤样的抽提率(质量分数)顺序为:镜质组富集物(15.78%)>上湾煤(13.89%)>惰质组富集物(9.45%);通过对吡啶抽提前后煤样的13C-NMR,FTIR和XRD的分析表明,吡啶抽提后三种煤样的芳香度均有所增加,抽提前后煤样的骨架结构没有发生大的变化.

关键词：煤结构吡啶抽提镜质组富集物惰质组富集物 13C-NMR