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Waste heat recovery from heavy-duty diesel engine exhaust gases by medium temperature ORC system

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Science China(Technological Sciences) 2011年第10期54卷 2746-2753页

作者： WEI MingShan FANG jinli ma ChaoChen DANISH Syed Noman School of Mechanical Engineering Beijing Institute of Technology Beijing 100081 China National University of Sciences and Technology (NUST) Islamabad H-12 Pakistan

A medium-temperature waste-heat recovery system based on the organic Rankine cycle (ORC) is designed to recover the exhaust energy from a heavy-duty diesel engine. Analysis of the 1st law of thermodynamics for an ORC system is performed. This analysis contains two parts. The first part is an analysis with undefined heat exchangers to gain an understanding of the ORC and find out suitable organic fluid parameters for a better ORC efficiency. The second part of the analysis uses combined engine test results and two designs of heat exchangers. By comparing the two designs, an improved system of heat exchangers is described. This analysis also quantifies the effect of engine parameters on ORC system. The study concludes that the supercritical Rankine cycle is a better approach towards waste heat recovery. The ORC system is found to perform better under part-load conditions if the medium-high power condition rather than rated working point of the engine is used as the design parameter. The ORC system achieves the highest waste-heat recovery efficiency of up to 10-15% for the optimised heat ex-changer design.

关键词： waste heat recovery organic-fluid Rankine cycle heavy-duty diesel engine medium temperature waste heat

Mechanistic understanding of Cu-based bimetallic catalysts

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Frontiers of Chemical Science and Engineering 2020年第5期14卷 689-748页

作者： You Han Yulian Wang Tengzhou ma Wei Li jinli Zhang Minhua Zhang School of Chemical Enginering and Technology Tianjin UniversityTianjin 300072China Tianjin Key Laboratory of Membrane Science and Desalination Technology Tianjin UniversityTianjin 300072China School of Chemistry and Chemical Engineering Shihezi UniversityShihezi 832003China Key Laboratory for Green Chemical Technology of Ministry of Education Research and Development Center for Petrochemical TechnologyTianjin UniversityTianjin 300072China

Copper has received extensive attention in the field of catalysis due to its rich natural reserves,low cost,and superior catalytic ***,we reviewed two modification mechanisms of co-catalyst on the coordination environment change of Cu-based catalysts:(1)change the electronic orbitals and geometric structure of Cu without any catalytic functions;(2)act as an additional active site with a certain catalytic function,as well as their catalytic mechanism in major reactions,including the hydrogenation to alcohols,dehydrogenation of alcohols,water gas shift reaction,reduction of nitrogenous compounds,electrocatalysis and *** influencing mechanisms of different types of auxiliary metals on the structure-activity relationship of Cu-based catalysts in these reactions were especially summarized and *** mechanistic understanding can provide significant guidance for the design and controllable synthesis of novel Cu-based catalysts used in many industrial reactions.

关键词： copper bimetallic catalyst coordination modification mechanism catalytic application

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早期乳腺癌术后靶区勾画共识

中国癌症杂志 2019年第9期29卷 753-760页

作者：杨昭志孟晋马金利梅欣陈星星张晓萌张丽王小方石薇马学军俞晓立章真郭小毛复旦大学附属肿瘤医院放疗科复旦大学上海医学院肿瘤学系

背景与目的:国际上乳腺癌术后辅助放疗的临床靶体积(clinical target volume,CTV)勾画存在明显差异,有必要在单中心形成靶区勾画共识。方法:选取复旦大学附属肿瘤医院收治的2例乳腺癌患者,1例为保乳术后,另1例为乳房改良根治术后。分别... 详细信息

背景与目的:国际上乳腺癌术后辅助放疗的临床靶体积(clinical target volume,CTV)勾画存在明显差异,有必要在单中心形成靶区勾画共识。方法:选取复旦大学附属肿瘤医院收治的2例乳腺癌患者,1例为保乳术后,另1例为乳房改良根治术后。分别进行模拟CT扫描。结果:复习了美国和欧洲的靶区勾画共识,结合已经发表的临床研究对靶区的定义以及自己的临床实践,经多次专家讨论,分别就保乳术后的瘤床、乳腺及改良根治术后的胸壁、区域淋巴结CTV进行了详细的定义。由1名医生在模拟CT上勾画,并将勾画好的靶区再送给各专家进行修改。结论:形成了一致的早期乳腺癌术后靶区勾画共识,有利于临床实践、教学及科研工作。

关键词：乳腺癌放射治疗临床靶体积靶区勾画共识

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天目山自然保护区典型阔叶林的光合特性

福建农林大学学报（自然科学版） 2016年第4期45卷 381-390页

作者：马锦丽江洪舒海燕吴孟霖方成圆孙文文陈晓峰牛晓栋龚莎莎浙江农林大学国际生态研究中心浙江杭州311300 南京大学国际地球系统科学研究所江苏南京210093 西南大学生命科学学院三峡库区生态环境教育部重点实验室重庆400715

对天目山自然保护区内典型阔叶林树种交让木(Daphniphyllum macropodum)、小叶青冈(Cyclobalanopsis myrsinaefolia)、中国绣球(Hydrangea chinensis maxim),在秋冬季节的光合作用光响应、叶绿素荧光以及相对叶绿素含量进行了测定分析.... 详细信息

对天目山自然保护区内典型阔叶林树种交让木(Daphniphyllum macropodum)、小叶青冈(Cyclobalanopsis myrsinaefolia)、中国绣球(Hydrangea chinensis maxim),在秋冬季节的光合作用光响应、叶绿素荧光以及相对叶绿素含量进行了测定分析.结果表明,(1)2个季节中,光饱和点(LSP)、最大净光合速率(Amax)、表观量子效率(AQY)、实际光化学效率(Fv'/Fm')、实际量子产量(Yield)、表观电子传递速率(ETR)均是先减小后增大,均以交让木最高.光补偿点(LCP)秋季以交让木最高,小叶青冈次之,中国绣球最低;冬季交让木高于小叶青冈;暗呼吸速率(Rd)总体上交让木最低,秋季中国绣球最高,冬季小叶青冈较高.光化学猝灭系数(q P)秋季中国绣球最高,其次是小叶青冈,交让木最低;冬季小叶青冈高于交让木.非光化学猝灭系数(NPQ)的变化趋势与q P相同.胁迫的相应机制:交让木为关闭一部分光合系统,降低暗呼吸速率;小叶青冈和中国绣球主要是将过剩的光能耗散为热能.(2)交让木和小叶青冈的相对叶绿素含量均表现为秋季小叶青冈>中国绣球,差异极显著.净光合速率(Pn)表现为交让木>小叶青冈;秋季中国绣球Pn位于二者之间.这与相对叶绿素含量的变化趋势基本一致,都是随着温湿度的变化呈先下降后上升的变化规律,但均为正值.

关键词：天目山阔叶林光响应叶绿素荧光相对叶绿素含量

Dissolution of copper phthalocyanine and fabrication of its nano-structure film

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Science China Chemistry 2009年第7期52卷 911-915页

作者： SU jinli XUE MinZhao ma Ning SHENG QiaoRong ZHANG Qing LIU YanGang School of Chemistry and Chemical Technology Shanghai Jiao Tong UniversityShanghai 200240China

The mono-protonated and di-protonated forms of copper phthalocyanine (CuPc) were obtained by increasing concentrations of trifluoroacetic acid (TFA) solution to a fixed concentration of CuPc solutions. UV-Vis spectrum shows that the Q bands of these two derivatives split and shift to the red, which means successive protonation happened and caused the two derivatives to lose their symmetry. After the protonation step, the solubility of protonated CuPc in organic solvent increased 60 times. The CuPc film was fabricated by the electrophoretic deposition (EPD) method from the protonated CuPc dissolved in nitromethane containing TFA. Scanning electron microscopy (SEM) showed that the deposited CuPc film on the indium tin oxide (ITO) substrate is composed of thread-like nanobelts with diameters between 100 nm and 200 nm. Furthermore, the CuPc film is in α phase with stacking direction (b-axis) parallel to the substrate, which was detected by X-ray diffraction.

关键词： CuPc protonation electrophoretic deposition orientation

Recent Progress in Metal-Organic Frameworks@Cellulose Hybrids and Their Applications

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Chinese Journal of Chemistry 2021年第12期39卷 3462-3480页

作者： Xiongli Liu Yun Xiao Zhiyuan Zhang Zifeng You jinli Li Dingxuan ma Baiyan Li School of materials Science and Engineering National institute for Advanced MaterialsTKL of Metal and Molecule-Based Material ChemistryNankai UniversityTianjin 300350China College of Chemistry and Molecular Engineering Laboratory of Eco-chemical EngineeringMinistry of EducationQingdao University of Science and TechnologyQingdao 266042China General English Department College of Foreign LanguagesNankai UniversityTianjin 300071China

In recent years,metal-organic frameworks(MOFs)are attracting increasing attention due to their charming ***,the intrinsic fragility,powdered crystalline state,and poor processibility of MOFs hinder their further *** this,the designs of MOF-based aerogels,hydrogels,membranes are effective ways to solve this ***,silica,synthetic polymer and cellulose are the commonly used raw materials for fabricating MOF-based aerogels,hydrogels,and *** them,cellulose and its derivatives are the best candidates to support the powdered MOFs from the perspectives of economy,environmental protection and *** review focuses on discussing the advantages of MOF@cellulose hybrids in applications such as water treatment,antibacterial,gas separation and adsorption,energy storage,drug delivery,catalysis,and other smart ***@cellulose-based aerogels,hydrogels and membranes can provide valuable guidance for investigating the practical application of MOFs in terms of processability,reusability,stability and easiness in handling.

关键词： Metal-organic frameworks Cellulose Membranes Organic-inorganic hybrid composites Application

安吉毛竹林非生长季CO_2通量与其光合响应关系探究

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生态科学 2017年第2期36卷 15-25页

作者：舒海燕江洪陈晓峰孙文文马锦丽张敏霞西南大学三峡库区生态环境教育部重点实验室重庆400715 浙江农林大学林业与生物技术学院浙江临安311300 南京大学国际地球系统科学研究所江苏南京210046

利用涡度相关法和生理生态法(光合)对安吉毛竹林生态系统非生长季(2014.10—2015.4,无2月)的CO_2通量进行测定,结果表明,两种方法具有良好的响应关系,基于涡度的生态系统净交换量(NEE)和基于光合的生态系统净初级生产力(NEP)日变化均呈... 详细信息

利用涡度相关法和生理生态法(光合)对安吉毛竹林生态系统非生长季(2014.10—2015.4,无2月)的CO_2通量进行测定,结果表明,两种方法具有良好的响应关系,基于涡度的生态系统净交换量(NEE)和基于光合的生态系统净初级生产力(NEP)日变化均呈单峰型曲线,受光合有效辐射(PAR)的直接影响,在午间12:00前后有最大值,且两者均表现为秋季最大(10月最高),春季次之,冬季最低。就各月而言,基于光合测定的NEP日最大值和月总量均低于涡度相关技术白天的测定值,但均占到后者的40%和65%以上,在毛竹光合能力比较强的10、11和4月,所占比例更大。表明在白天,安吉毛竹林生态系统的NEP主要取决于毛竹的光合作用。此外,观测期间,毛竹林生态系统在的净初级生产力总量为1365.59 gCO_2·m^(–2),吸收的碳约372.44 gC·m^(–2),整体表现为较强的碳汇。

关键词：毛竹林生态系统非生长季涡度相关技术光合作用净初级生产力

早期乳腺癌保乳术后全乳IMRT及瘤床大分割同期加量的临床Ⅱ期研究

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中华放射肿瘤学杂志 2016年第7期25卷 703-707页

作者：杨昭志俞晓立梅欣马金利潘自强陈星星张丽吴炅邵志敏陈佳艺郭小毛复旦大学上海医学院肿瘤学系复旦大学附属肿瘤医院放疗科上海200032 复旦大学上海医学院肿瘤学系复旦大学附属肿瘤医院乳腺外科上海200032 上海交通大学附属瑞金医院放疗科 200025

目的早期乳腺癌保乳术后全乳IMRT及瘤床大分割同期加量的临床Ⅱ期研究。方法 2010—2013年本中心前瞻性收治200例早期乳腺癌保乳术患者,采用IMRT全乳45 Gy分25次同期瘤床加量0.6 Gy/次总量60 Gy5周完成方案。Logistic 回归分析用于检... 详细信息

目的早期乳腺癌保乳术后全乳IMRT及瘤床大分割同期加量的临床Ⅱ期研究。方法 2010—2013年本中心前瞻性收治200例早期乳腺癌保乳术患者,采用IMRT全乳45 Gy分25次同期瘤床加量0.6 Gy/次总量60 Gy5周完成方案。Logistic 回归分析用于检验发生2级放射性皮肤反应的预测因素。结果所有患者均完成放疗。患侧乳腺和瘤床平均PTV为529．2cm^3和92．9cm^3。同侧肺V20为17．2％。左侧乳腺癌患者心脏Dmaan为531cGy。根据CTCAE3．0标准急性放射性皮炎发生率0、1、2级分别为8．0％、63．0％、29．0％，其中发生湿性脱皮者占10．5％。因素分析显示影响2级皮肤反应因素为瘤床PTV、全乳PTV（P=0．031、0．000）。185例患者完成了美容效果自评，其中优、良、一般患者分别为50例（27．1％）、111例（60．0％）、24例（12．9％）。患者中位随访38（2．56）个月，3年LC率为98．7％。结论全乳放疗同期大分割瘤床加量技术可以取得较低的急性皮肤反应和较好的美容效果，3年临床结果显示LC率良好。

关键词：乳腺肿瘤/保乳术乳腺肿瘤/放射疗法放射疗法,同期加量治疗结果

含GNs甲醇-水二元工质热虹吸管的动力电池散热特性研究

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过程工程学报 2024年第4期24卷 445-452页

作者：鲁进利周帅杰韩亚芳孙彦红黄茹安徽工业大学建筑工程学院安徽马鞍山243032 奇瑞汽车股份有限公司安徽芜湖241000

动力电池工作温度过高和温差过大都会导致其性能快速衰退,有效的热管理系统应将电池最高温度和电池模块表面温差控制在允许范围内。基于石墨烯纳米颗粒的甲醇-水二元混合工质热虹吸管的传热特性研究结果,选用充液率50%、石墨烯含量0.02... 详细信息

动力电池工作温度过高和温差过大都会导致其性能快速衰退,有效的热管理系统应将电池最高温度和电池模块表面温差控制在允许范围内。基于石墨烯纳米颗粒的甲醇-水二元混合工质热虹吸管的传热特性研究结果,选用充液率50%、石墨烯含量0.02wt%的甲醇-水二元工质热虹吸管为换热器件,搭建电池热管理实验测试装置,研究了模拟电池在1,1.5,2 C三种放电倍率下的散热性能,与自然对流和强制风冷散热进行对比。结果表明,热管散热方式三种放电倍率对应的电池最高温度分别为28.89,32.12及35.76℃;热管散热方式平均升温速率最低,在2 C放电倍率时仅为0.525℃/min;2 C放电倍率下热管散热系统相比风冷散热方式温度下降了22.48%,相比自然对流温度下降了49.13%;三种放电倍率下热管散热系统的散热效率最高,且均超过了70%。研究结果可为热管散热系统应用于电池热管理系统提供理论依据和数据支撑。

关键词：热虹吸管二元工质石墨烯电池热管理系统