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Chinese Journal of Polymer Science 2006年第3期24卷 299-306页

作者： Bo Xu yi-hu Song yong-gang Shang Guan 郑强 Department of Polymer Science and Engineering Zhejiang University Hangzhou 310027 China

Melt extrusion was used to prepare binary nanocomposites of ethylene copolymers and organoclay and trinary nanocomposites of low-density polyethylene （LDPE）, ethylene copolymer and organoclay. X-ray diffraction （XRD） and transmission electron microscopy （TEM） were used to analyze the structure of the clay phase and the morphology of the nanocomposites. Influences of the comonomer in the copolymer and the content of the copolymer on the morphology of the resulting nanocomposites were discussed. The binary and the trinary composites may form intercalated or exfoliated structures depending on the interaction between the copolymer and the clay layers and the content of the copolymer.

关键词： Nanocomposites Low-density polyethylene Organoclay Morphology Copolymer.

Effects of CO_(2) gassy-supercritical phase transition on corrosion behaviors of carbon steels in saturated vapor environment

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Journal of Central South University 2021年第2期28卷 325-337页

作者： ZENG De-zhi HUANG Zhi-yao YU Zhi-ming SHI Shan-zhi yi yong-gang LIU Cong-ping TIAN gang SUN yi-cheng State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum UniversityChengdu 610500China The Second Research Institute of Civil Aviation Administration of China Chengdu 610041China Research Institute of Engineering Technology Xinjiang Oil Field CompanyPetroChinaKaramay 834000China

Corrosion behaviors of P110 and N80 tubular steels in CO_(2) gas phase and supercritical(S-CO_(2))phase in a saturated water vapor environment were explored in corrosion weight loss experiments by SEM,EDS,XRD,XPS and cross-section analysis *** the increase in CO_(2) partial pressure,the average corrosion rate increased first and then *** average corrosion rate reached the maximum value under the near-critical *** CO_(2) partial pressure further increased to be above the critical pressure,the average corrosion rate gradually decreased and local aggregation of molecules was weakened.

关键词： carbon capture and storage supercritical carbon dioxide corrosion product corrosion mechanism

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不同含水期轻质油藏空气泡沫驱试验

中国石油大学学报（自然科学版） 2013年第4期37卷 124-128页

作者：东晓虎刘慧卿庞占喜易勇刚郑家朋中国石油大学石油工程教育部重点实验室北京102249 中国石油新疆油田公司工程技术研究院新疆克拉玛依834000 中国石油冀东油田公司钻采工艺研究院河北唐山063000

采用室内物理模拟的方法进行轻质水驱油藏转空气泡沫驱试验,研究油藏含水饱和度对空气与不同性质轻质原油的氧化反应速率及原油耗氧程度的影响。在此基础上,进行长细管耗氧检测试验及水驱后的双管提高采收率试验。结果表明:耗氧量与原... 详细信息

采用室内物理模拟的方法进行轻质水驱油藏转空气泡沫驱试验,研究油藏含水饱和度对空气与不同性质轻质原油的氧化反应速率及原油耗氧程度的影响。在此基础上,进行长细管耗氧检测试验及水驱后的双管提高采收率试验。结果表明:耗氧量与原油黏度没有绝对的关系,存在一个含水饱和度拐点,当油藏含水饱和度低于此饱和度时,氧化反应速率较大,空气中的氧气基本可以完全消耗;空气泡沫注入油藏之后,氧气被大量消耗,气体突破时的氧气体积分数接近于零,待高温氧化带到达出口端,氧气体积分数突然升高,耗氧效果变差;空气泡沫的注入可以有效封堵高渗管启动低渗管,提高采收率约10.9%。

关键词：油藏空气泡沫低温氧化耗氧封堵效应

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木质素在沥青中的应用研究进展

中国造纸学报 2017年第4期32卷 60-65页

作者：吴文娟宜勇钢王琛金永灿南京林业大学江苏省林业资源高效加工利用协同创新中心江苏南京210037 华南理工大学制浆造纸工程国家重点实验室广东广州510640

综述了木质素作为改性剂、抗氧化剂、乳化剂等在沥青中的应用进展。木质素的有效利用,不仅能够减少造纸废液对环境的影响,为废弃物寻找好的出路,而且也降低了改性沥青的成本,具有很好的环境和经济效益。

关键词：木质素沥青改性剂乳化剂抗氧化剂

Small extracellular vesicles derived from cerebral endothelial cells with elevated microRNA 27a promote ischemic stroke recovery

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Neural Regeneration Research 2025年第1期20卷 224-233页

作者： yi Zhang Zhongwu Liu Michael Chopp Michael Millman Yanfeng Li Pasquale Cepparulo Amy Kemper Chao Li Li Zhang Zheng gang Zhang Department of Neurology Henry Ford HospitalDetroitMIUSA Department of Physics Oakland UniversityRochesterMIUSA Department of Pathology Henry Ford HospitalDetroitMIUSA Division of Pharmacology Department of NeuroscienceReproductive and Dentistry SciencesSchool of MedicineUniversity of Naples“Federico Ⅱ”NaplesItaly

Axonal remodeling is a critical aspect of ischemic brain repair processes and contributes to spontaneous functional *** previous in vitro study demonstrated that exosomes/small extracellular vesicles(sEVs)isolated from cerebral endothelial cells(CEC-sEVs)of ischemic brain promote axonal growth of embryonic cortical neurons and that microRNA 27a(miR-27a)is an elevated miRNA in ischemic *** the present study,we investigated whether normal CEC-sEVs engineered to enrich their levels of miR-27a(27a-sEVs)further enhance axonal growth and improve neurological outcomes after ischemic stroke when compared with treatment with non-engineered CEC-sEVs.27a-sEVs were isolated from the conditioned medium of healthy mouse CECs transfected with a lentiviral miR-27a expression *** EVs isolated from CECs transfected with a scramble vector(Scra-sEVs)were used as a *** male mice were subjected to permanent middle cerebral artery occlusion and then were randomly treated with 27a-sEVs or *** array of behavior assays was used to measure neurological *** with treatment of ischemic stroke with Scra-sEVs,treatment with 27a-sEVs significantly augmented axons and spines in the peri-infarct zone and in the corticospinal tract of the spinal grey matter of the denervated side,and significantly improved neurological *** vitro studies demonstrated that CEC-sEVs carrying reduced miR-27a abolished 27a-sEV-augmented axonal *** analysis revealed that 27a-sEVs systemically administered preferentially localized to the pre-synaptic active zone,while quantitative reverse transcription-polymerase chain reaction and Western Blot analysis showed elevated miR-27a,and reduced axonal inhibitory proteins Semaphorin 6A and Ras Homolog Family Member A in the peri-infarct *** of the Clathrin-dependent endocytosis pathway substantially reduced neuronal internalization of *** data provide evidence that 27a-sEVs have

关键词： axonal remodeling cerebral endothelial cells exosomes miR-27a mitochondria Semaphorin 6A small extracellular vesicles stroke

半直线上修正的Jacobi有理谱方法(英文)

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上海师范大学学报（自然科学版） 2009年第4期38卷 342-346页

作者：裔勇刚上海师范大学数理学院上海200234

研究了半直线上修正的Jacobi有理函数正交系,建立了在金融数学中经常应用的Black-Scholes模型的有理谱格式.数值结果说明了这种方法的有效性.

关键词： Jacobi有理谱方法半直线新正交系应用

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一类最优光正交码的构作

上海师范大学学报（自然科学版） 2006年第2期35卷 25-29页

作者：王金华裔永刚南通大学理学院江苏南通226007 上海师范大学数理信息学院上海200234

光正交码具有良好的光学相关性,它特别适用于光纤信道上的码分多址(CDMA)系统．利用仿射空间给出了参数为(q^m-1,q,1)的最优光正交码的构作,其中q为质数幂,m为任意正整数．

关键词：光正交码有限域仿射空间

Crystallization Modulation and Holistic Passivation Enables Efficient Two‑Terminal Perovskite/CuIn(Ga)Se_(2)Tandem Solar Cells

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Nano-Micro Letters 2025年第1期17卷 205-215页

作者： Cong Geng Kuanxiang Zhang Changhua Wang Chung Hsien Wu Jiwen Jiang Fei Long Liyuan Han Qifeng Han yi‑Bing Cheng yong Peng State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070People’s Republic of China Triumph Photovoltaic Materials Co. Ltd.No.1001 Yannan AvenueHigh‑Tech Development DistrictBengbuAnhui 233000People’s Republic of China College of Materials Science and Engineering Guilin University of TechnologyGuilin 541004People’s Republic of China State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong UniversityShanghai 200240People’s Republic of China

Two-terminal(2-T)perovskite(PVK)/CuIn(Ga)Se_(2)(CIGS)tandem solar cells(TSCs)have been considered as an ideal tandem cell because of their best bandgap matching regarding to Shockley–Queisser(S–Q)***,the nature of the irregular rough morphology of commercial CIGS prevents people from improving tandem device *** this paper,D-homoserine lactone hydrochloride is proven to improve coverage of PVK materials on irregular rough CIGS surfaces and also passivate bulk defects by modulating the growth of PVK *** addition,the minority carriers near the PVK/C60 interface and the incompletely passivated trap states caused interface recombination.A surface reconstruction with 2-thiopheneethylammonium iodide and N,N-dimethylformamide assisted passivates the defect sites located at the surface and grain ***,LiF is used to create this field effect,repelling hole carriers away from the PVK and C60 interface and thus reducing *** a result,a 2-T PVK/CIGS tandem yielded a power conversion efficiency of 24.6%(0.16 cm^(2)),one of the highest results for 2-T PVK/CIGS TSCs to our *** validation underscores the potential of our methodology in achieving superior performance in PVK/CIGS tandem solar cells.

关键词： PVK/CIGS TSCs Irregular rough surfaces Modulating the growth PVK/C60 interface recombination

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热采双管水平井改善稠油油藏加热效果研究

科学技术与工程 2013年第13期21卷 3704-3709页

作者：郑家朋东晓虎刘慧卿张传新易勇刚中国石油大学石油工程教育部重点实验室北京102249 中石油冀东油田公司钻采工艺研究院唐山063000 中石油新疆油田工程技术研究院克拉玛依834000

平行双管与同心管注汽技术是为解决水平段吸汽剖面不均而提出来的稠油水平井完井新方法。采用稳态实验方法,进行了多孔介质中稠油的渗流特征实验。在获取了零启动压力梯度拐点温度的基础上,研究了水平井双管分段注采对水平段吸汽剖面的... 详细信息

平行双管与同心管注汽技术是为解决水平段吸汽剖面不均而提出来的稠油水平井完井新方法。采用稳态实验方法,进行了多孔介质中稠油的渗流特征实验。在获取了零启动压力梯度拐点温度的基础上,研究了水平井双管分段注采对水平段吸汽剖面的影响。结果显示,实验测得的两种稠油油样在油藏条件下的零启动压力梯度的拐点温度分别为72℃,65℃。储层与流体物性参数、注汽方式以及注汽参数等均对双管注汽开发效果有所影响,其中水平段的沿程非均质性、注汽方式、周期注气量、蒸汽干度和盲管段长度影响较大。当盲管段长度较小时,纵向加热半径也较小,此时A、B两段注入的蒸汽发生窜通的可能性较大。

关键词：稠油油藏水平井渗流特征分段注采双管注汽

Identifying the dynamic behaviors in complete reconstruction of Co-based complex precatalysts during electrocatalytic oxygen evolution

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Journal of Energy Chemistry 2025年第1期100卷 226-233页

作者： Jingfang Zhang Danyang Wu Linke Cai Youluan Lu Fanpeng Cheng Lijuan Shi Qun yi Yao Liu yi Huang Key Laboratory of Green Chemical Engineering Process of Ministry of Education Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education Hubei Key Laboratory of Novel Reactor and Green Chemical Technology School of Chemical Engineering & Pharmacy Wuhan Institute of Technology Key Laboratory of Pesticide & Chemical Biology of Ministry of Education Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education College of Chemistry Central China Normal University College of Materials Science and Engineering Fuzhou University

Transition metal-based nanomaterials have emerged as promising electrocatalysts for oxygen evolution reaction（OER）. Considerable research efforts have shown that self-reconstruction occurs on these nanomaterials under operating conditions of OER process. However, most of them undergo incomplete reconstruction with limited thickness of reconstruction layer, leading to low component utilization and arduous exploration of real catalytic mechanism. Herein, we identify the dynamic behaviors in complete reconstruction of Co-based complexes during OER. The hollow phytic acid（PA） cross-linked CoFe-based complex nanoboxes with porous nanowalls are designed because of their good electrolyte penetration and mass transport ability, in favor of the fast and complete reconstruction. A series of experiment characterizations demonstrate that the reconstruction process includes the fast substitution of PA by OH-to form Co（Fe）(OH)xand subsequent potential-driven oxidation to Co（Fe）OOH. The obtained CoFeOOH delivers a low overpotential of 290 mV at a current density of 10 mA cm-2and a long-term *** experiment results together with theory calculations reveal that the Fe incorporation can result in the electron rearrangement of reconstructed CoFeOOH and optimization of their electronic structure,accounting for the enhanced OER activity. The work provides new insights into complete reconstruction of metal-based complexes during OER and offers guidelines for rational design of high-performance electrocatalysts.

关键词： Complete reconstruction Co-based complex Precatalysts Oxygen evolution reaction