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聚乙烯吡咯烷酮基碘凝胶电解质的制备及在染料敏化太阳能电池中的应用

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高等学校化学学报 2014年第6期35卷 1293-1299页

作者：卢善富刘祎阳相艳北京航空航天大学化学与环境学院仿生能源与器件北京市重点实验室北京100191

采用聚乙烯吡咯烷酮(PVP)和聚偏氟乙烯(PVDF)为凝胶剂,以碘化锂和碘单质为碘源,碳酸乙烯酯(EC)和碳酸丙烯酯(PC)为溶剂,制备了染料敏化太阳能电池(DSSCs)用凝胶聚合物电解质(GPE).使用拉曼光谱、循环伏安曲线和交流阻抗谱等对GPE进行表... 详细信息

采用聚乙烯吡咯烷酮(PVP)和聚偏氟乙烯(PVDF)为凝胶剂,以碘化锂和碘单质为碘源,碳酸乙烯酯(EC)和碳酸丙烯酯(PC)为溶剂,制备了染料敏化太阳能电池(DSSCs)用凝胶聚合物电解质(GPE).使用拉曼光谱、循环伏安曲线和交流阻抗谱等对GPE进行表征.结果表明,聚合物的配比与浓度及碘与碘化锂比例对该电解质性能有很大影响,当聚合物质量分数为10%、PVP与PVDF质量比为80∶20、I2浓度为0.042mol/L且LiI与I2摩尔比为30∶1时,制备的GPE在室温下电导率达最大值(3.27 mS/cm).使用该GPE组装的DSSCs在100 mW/cm2的模拟太阳光照射下,开路电压为0.64 V,短路电流为13.6 mA/cm2,填充因子为0.595,能量转化效率为5.18%,并在30 d内表现出了良好的稳定工作性能.

关键词：聚乙烯吡咯烷酮凝胶聚合物电解质离子电导率染料敏化太阳能电池

The Pitch Control Algorithm of Wind Turbine Based on Fuzzy Control and PID Control

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Energy and Power Engineering 2013年第3期5卷 6-10页

作者： Rui Guo Jinsong Du Jinghui Wu yiyang liu Wind Power Control Technology Department Shenyang Institute of Automation Chinese Academy of Sciences Shenyang China

Due to the special features of great inertia, pure lag and non-linearity provided with wind turbine, coupled with complex and variable working condition, it is difficult to achieve satisfactory control results simply by employing traditional PID, which has the drawbacks such as adjustment inconvenience, poor anti-interference, and large overshoot, and prolonged adjust span. This paper puts forward one type of improved controller combining Fuzzy Control with PID Control. With larger speed deviation, the controller emphasizes Fuzzy Control to speed system response;with less speed deviation, the controller emphasizes PID Control to improve control accuracy. Simulation Test directing at the algorithm is based on the Bladed software, with the positive result of improved dynamic and static performance of wind turbine under large disturbance.

关键词： Fuzzy Control Pitch Control Wind Turbine Bladed

Nucleolus localization of SpyCas9 affects its stability and interferes with host protein translation in mammalian cells

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Genes & Diseases 2022年第3期9卷 731-740页

作者： Renke Tan Wenhao Du yiyang liu Xiaoji Cong Meirong Bai Chenxiao Jiang Zengxia Li Minjia Tan Dengke K.Ma Qiang Huang Wei Jiang Yongjun Dang Key Laboratory of Metabolism and Molecular Medicine the Ministry of EducationDepartment of Biochemistry and Molecular BiologySchool of Basic Medical SciencesShanghai Medical CollegeFudan UniversityShanghai 200032PR China State Key Laboratory of Genetic Engineering School of Life SciencesFudan UniversityShanghai 200043PR China Drug Discovery and Design Center State Key Laboratory of Drug ResearchShanghai Institute of Materia MedicaChinese Academy of SciencesShanghai 201203PR China Cardiovascular Research Institute University of CaliforniaSan FranciscoCA 94158USA

The CRISPR/Cas9 system,originally derived from the prokaryotic adaptive immune system,has been developed as efficient genome editing *** enables precise gene manipulation on chromosomal DNA through the specific binding of programmable sgRNA to target DNA,and the Cas9 protein,which has endonuclease activity,will cut a double strand break at specific ***,Cas9 is a foreign protein in mammalian cells,and the potential risks associated with its introduction into mammalian cells are not fully *** this study,we performed pull-down and mass spectrometry(MS)analysis of Streptococcus pyogenes Cas9(SpyCas9)interacting proteins in HEK293T cells and showed that the majority of Cas9-associated proteins identified by MS were localized in the ***,we further discovered that the Cas9 protein contains a sequence encoding a nucleolus detention signal(NoDS).Compared with wild-type(WT)Cas9,NoDS-mutated variants of Cas9(mCas9)are less stable,although their gene editing activity is minimally *** of WT Cas9,but not mCas9,causes general effects on transcription and protein translation in the host ***,identification of NoDS in Cas9 will improve the understanding of Cas9's biological function in vivo,and the removal of NoDS in Cas9 may enhance its safety for future clinical use.

关键词： CRISPR/Cas9 Gene editing Global transcription Nucleolus detention signal Translation

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窄体履带钻机变幅装置立柱滑轨应力分析

煤矿机械 2019年第6期40卷 98-99页

作者：刘亦洋中煤科工集团西安研究院有限公司

针对窄体式双转盘变幅履带钻机变幅装置中的立柱滑轨进行三维建模,并利用有限元分析软件对该机构进行受力分析。模拟了立柱滑轨在最大受力情况下的应力分布情况,论证了立柱滑轨结构设计的合理性,为今后的相关设计提供了参考。

关键词：履带钻机立柱滑轨有限元分析

Bifunctional bridging capping layer enables 24.5% efficiency of perovskite solar cells with polymer-based hole transport materials

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Science China Chemistry 2025年第1期68卷 350-359页

作者： Can Zhu yiyang Wang Lei Meng Beibei Qiu Jing Li Shucheng Qin Ke Hu Xin Jiang Wenbin Lai Minchao liu Zhe liu Chenxing Lu Jinyuan Zhang Yongfang Li Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences School of Chemical Science University of Chinese Academy of Sciences Key Laboratory of Solid State Optoelectronic Devices of Zhejiang Province College of Physics and Electronic Information Engineering Zhejiang Normal University Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and ChemistryChinese Academy of Sciences Laboratory of Advanced Optoelectronic Materials College of Chemistry Chemical Engineering and Materials ScienceSoochow University

Developing a bridge capping layer between perovskite and hole transport layer materials（HTMs） in the n-i-p perovskite solar cells（pero-SCs） is an effective approach to modify the morphology of HTMs and passivate the perovskite ***, we select the quinoxaline-based bifunctional passivation agent, quinoxalin-6-yl-methylamine hydrochloride（Qx MACl）,as the bridging layer, and a D-A copolymer PBQ12 containing the same quinoxaline unit as an HTM for the n-i-p pero-SCs. Due to the π-π stacking among the common quinoxaline units in the bridge layer and HTM, Qx MACl induces the π-π stacking of the PBQ12 film and improves the film morphology of HTMs with better conductivity. Additionally, Qx MACl can effectively passivate the perovskite surface, and PBQ12 possesses appropriate energy levels and high hole mobility. The pero-SCs based on FAPbI3with PBQ12/Qx MACl treatment showed a higher power conversion efficiency（PCE） of 24.05% and outstanding stability, maintaining 95.4% and 92.1% of its initial PCE after 750 h of storage and after over 800 h of thermal annealing at 85 °C, respectively. To further enhance the PCE of the PBQ12/Qx MACl-based devices, we developed a non-metal ion dopant for the PBQ12 HTM. Through trace doping of PBQ12 HTM by the non-metal ion dopant, the PCE of the PBQ12/Qx MACl-based devices reached 25.24%（the calibrated PCE of 24.55% by the National Institute of Metrology, China）.

关键词： D-A copolymer, hole transport materials, bifunctional bridge capping layer, passivation perovskite solar cells

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窄体式双转盘变幅履带钻机试验研究

煤矿机械 2019年第8期40卷 47-49页

作者：刘亦洋中煤科工集团西安研究院有限公司

针对狭窄巷道钻机施工困难的问题,设计了窄体式双转盘变幅履带钻机,并在淮南张集矿进行了现场工业性试验,对钻机的各项动作及钻进能力进行了验证。试验结果表明,钻机结构紧凑、操纵方便,大幅降低了工人的劳动强度,提高现场钻孔施工效率。

关键词：窄体履带钻机现场试验

Metal–organic frameworks and their derivatives for optimizing lithium metal anodes

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eScience 2024年第4期4卷 7-26页

作者： Zhaoyang Wang Zijuan Du yiyang liu Caroline EKnapp Yuhang Dai Jianwei Li Wei Zhang Ruwei Chen Fei Guo Wei Zong Xuan Gao Jiexin Zhu Chuanliang Wei Guanjie He Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology College of Chemistry EngineeringLiaocheng UniversityLiaocheng 252059China State Key Laboratory of Silicate Materials for Architectures Wuhan University of TechnologyWuhan 430070China Christopher Ingold Laboratory Department of ChemistryUniversity College LondonLondon WC1H 0AJUK School of Chemistry and Chemical Engineering Shandong UniversityJinan 250061China Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources Qinghai Institute of Salt LakesChinese Academy of Sciences(CAS)Xining 810008China

Lithium metal anodes(LMAs)have been considered the ultimate anode materials for next-generation ***,the uncontrollable lithium dendrite growth and huge volume expansion that can occur during charge and discharge seriously hinder the practical application of ***–organic framework(MOF)materials,which possess the merits of huge specific surface area,excellent porosity,and flexible composition/structure tunability,have demonstrated great potential for resolving both of these *** article first explores the mechanism of lithium dendrite formation as described by four influential ***,based on an in-depth understanding of these models,we propose potential strategies for utilizing MOFs and their derivatives to suppress lithium dendrite *** then provide a comprehensive review of research progress with respect to various applications of MOFs and their derivatives to suppress lithium dendrites and inhibit volume *** paper closes with a discussion of perspectives on future modifications of MOFs and their derivatives to achieve stable and dendrite-free lithium metal batteries.

关键词： Metal–organic frameworks Lithium metal batteries Lithium metal anodes Lithium dendrite formation mechanism Lithium dendrite inhibition strategy

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东北地区高等教育一体化机制设计研究

东北大学学报（社会科学版） 2022年第3期24卷 132-137页

作者：边恕刘译阳辽宁大学公共管理学院辽宁沈阳110036

高等教育一体化发展是促进东北地区经济共赢、文化融通、资源互补,实现新时代全面振兴全方位振兴的重要基础和支撑。加快推进东北地区高等教育一体化发展拥有诸多驱动因素和有利基础,同时也存在系统谋划不强、创新缺乏内生动力、高校建... 详细信息

高等教育一体化发展是促进东北地区经济共赢、文化融通、资源互补,实现新时代全面振兴全方位振兴的重要基础和支撑。加快推进东北地区高等教育一体化发展拥有诸多驱动因素和有利基础,同时也存在系统谋划不强、创新缺乏内生动力、高校建设趋同、科技成果转化率偏低等发展约束条件,需要通过强化治理机制、健全联动机制、深化整合机制等措施,推动东北地区政府力量、学术力量、企业力量有机协同,实现区域高等教育一体化发展,为经济社会高质量发展提供有力支撑。

关键词：东北地区高等教育一体化发展机制设计

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Investigation of spherical and concentric mechanism of compound droplets

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Matter and Radiation at Extremes 2016年第4期1卷 213-223页

作者： Meifang liu Lin Su Jie Li Sufen Chen yiyang liu Jing Li Bo Li Yongping Chen Zhanwen Zhang Research Center of Laser Fusion China Academy of Engineering PhysicsMianyang621900China School of Energy and Power Engineering Yangzhou UniversityYangzhouJiangsu225127China Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education School of Energy and EnvironmentSoutheast UniversityNanjingJiangsu210096China

Polymer shells with high sphericity and uniform wall thickness are always needed in the inertial confined fusion(ICF)*** by the need to control the shape of water-in-oil(W1/O)compound droplets,the effects of the density matching level,the interfacial tension and the rotation speed of the continuing fluid field on the sphericity and wall thickness uniformity of the resulting polymer shells were investigated and the spherical and concentric mechanisms were also *** centering of W1/O compound droplets,the location and movement of W1/O compound droplets in the external phase(W2)were significantly affected by the density matching level of the key stage and the rotation speed of the continuing fluid ***,by optimizing the density matching level and rotation speed,the batch yield of polystyrene(PS)shells with high sphericity and uniform wall thickness ***,the sphericity also increased by raising the oil/water(O/W2)interfacial tension,which drove a droplet to be *** experimental results show that the spherical driving force is from the interfacial tension affected by the two relative phases,while the concentric driving force,as a resultant force,is not only affected by the three phases,but also by the continuing fluid *** understanding of spherical and concentric mechanism can provide some guidance for preparing polymer shells with high sphericity and uniform wall thickness.

关键词： Compound droplet stability Compound droplet deformation Sphericity Wall thickness uniformity Interfacial tension Density matching