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Tetra-phthalimide end-fused bifluorenylidene: Synthesis and characterization

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Chinese Chemical Letters 2019年第1期30卷 259-262页

作者： Debin Xia fangyuan zhang Zhigang Liu Linghao Meng Ruiqing Fan Yulin Yang MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage School of Chemistry and Chemical Engineering Harbin Institute of Technology

A novel electron acceptor, namely, tetra-phthalimide end-fused bifluorenylidene(3 D-imide) was designed and synthesized. In comparison to its framework analogue 12,12'-bidibenzo[b,h]fluorenylidene(BF-3), the electron withdrawing capability and optical absorption were strengthened and enlarged,respectively. Moreover, photoluminescence quenching experiments were carried out, which confirmed 3D-imide could be a good candidate for nonfullene organic photovoltaics. Finally, we gained more insight into its electronic properties through density functional theory calculation.

关键词： Bifluorenylidene Polycycles Electron acceptor Twisting Three dimensional

Research on Public Opinion Transmission and Evolution Mechanism in Network

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International English Education Research 2014年第2期 35-38页

作者： zhang fangyuan No. 333 Longteng Road Songjiang District Shanghai China Shanghai University Of Engineering Science

As the Internet continues to expand, the influence of network information on real life has gradually deepened. Research on propagation and evolution of Internet public opinion has become a hot topic. The force of intemet public opinion penetrates and influences on every aspect of the society. Compared with traditional public opinion, the network public opinion has features of immediate, multivariate and interactive, the propagation behavior has the new change compared with the traditional public opinion. In the propagation behavior of network public opinion, agenda setting is no longer an arbitrary, the influence of opinion leaders in the agenda setting becomes more and more complex and diversified. The formation time of network public opinion is short, and social influence becomes strong. Guide the public opinion to build a harmonious environment of network public opinion. Overall, our country＇ s network public opinion environment is a benign situation and steadily promoting the reforms of public policies. Although there is still a few not rational voices full of them, the network public opinion shows a general trend of positive thinking. Based on this philosophy, through the research of network public opinion dissemination and evolution mechanism, can be all-round good guidance and supervision of public opinion, building a harmonious network environment of public opinion.

关键词： network public opinion propagation of intemet public opinion evolution of intemet public opinion

Quantifying Hypochlorous Acid Concentration in Environmental Water Using Smartphone Colorimetry

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Journal of Analysis and Testing 2021年第4期5卷 360-369页

作者： Shuai He Hui Dong Yuanqiang Hao Yintang zhang Yanli Zhou fangyuan zhang Jie Li Yingying Jia Guoqing Xiao Maotian Xu College of Materials Science and Engineering Xi’an University of Architecture and TechnologyXi’an 710055China Henan Key Laboratory of Biomolecular Recognition and Sensing College of Chemistry and Chemical EngineeringHenan Joint International Research Laboratory of Chemo/Biosensing and Early Diagnosis of Major DiseasesShangqiu Normal UniversityShangqiu 476000China

In this study,we developed an eff ective method to detect hypochlorite acid(HClO)by using methylene blue(MB)derivative(BPY1).BPY1 was selectively oxidized through HClO,and the solution color changed from colorless to *** the presence of HClO,the ultraviolet–visible(UV–vis)spectra and concentration of HClO had a linear relationship with a detection limit of 0.5μ***,a test paper for HClO monitoring was successfully prepared using the BPY1 probe,and the observed detection limit by the naked eye was estimated at 5μ***,using the BPY1 probe,HClO could also be detected through smartphone colorimetry,and the method showed a good recovery ranging from 98.7 to 104.0%for HClO detection in an actual water *** for developing countries,such a low-cost and highly sensitive detection method provides a simple and practical method for monitoring HClO in water.

关键词： Smartphone colorimetry RGB Test strips Hypochlorite acid Methylene blue

Molecular insights into AabZIP1-mediated regulation on artemisinin biosynthesis and drought tolerance in Artemisia annua

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Acta Pharmaceutica Sinica B 2022年第3期12卷 1500-1513页

作者： Guoping Shu Yueli Tang Mingyuan Yuan Ning Wei fangyuan zhang Chunxian Yang Xiaozhong Lan Min Chen Kexuan Tang Lien Xiang Zhihua Liao Key Laboratory of Eco-environments in Three Gorges Reservoir Region(Ministry of Education) Chongqing Engineering Research Centre for Sweet PotatoSWU-TAAHC Medicinal Plant Joint R&D CentreSchool of Life SciencesSouthwest UniversityChongqing 400715China TAAHC-SWU Medicinal Plant Joint R&D Centre Xizang Agricultural and Husbandry CollegeNyingchi 860000China College of Pharmaceutical Sciences Southwest UniversityChongqing 400715China College of Environmental Science and Engineering China West Normal UniversityNanchong 637009China

Artemisia annua is the main natural source of artemisinin *** ***,extended drought stress severely reduces its biomass and artemisinin production while short-term water-withholding or abscisic acid(ABA)treatment can increase artemisinin ***-responsive transcription factor AabZIP1 and JA signaling AaMYC2 have been shown in separate studies to promote artemisinin production by targeting several artemisinin biosynthesis ***,we found AabZIP1 promote the expression of multiple artemisinin biosynthesis genes including AaDBR2 and AaALDH1,which AabZIP1 does not directly ***,it was found that AabZIP1 up-regulates AaMYC2expression through direct binding to its promoter,and that AaMYC2 binds to the promoter of AaALDH1to activate its *** addition,AabZIP1 directly transactivates wax biosynthesis genes AaCER1and *** biosynthesis of artemisinin and cuticular wax and the tolerance of drought stress were significantly increased by AabZIP1 overexpression,whereas they were significantly decreased in RNAi-AabZIP1 ***,we have uncovered the AabZIP1-AaMYC2 transcriptional module as a point of cross-talk between ABA and JA signaling in artemisinin biosynthesis,which may have general *** have also identified AabZIP1 as a promising candidate gene for the development of *** plants with high artemisinin content and drought tolerance in metabolic engineering breeding.

关键词： Artemisia annua AabZIP1 AaMYC2 Artemisinin biosynthesis Drought tolerance Wax biosynthesis

Asynchronous abdominal wall and sigmoid metastases in clear cell renal cell carcinoma: A case report and literature review

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Asian Journal of Urology 2019年第2期6卷 210-214页

作者： fangyuan zhang Gang Zhao Pengjie Wu Qi An Yang Yang Xin Chen Jianye Wang Dong Wei Department of Urology Beijing HospitalThe Fifth Clinical Medical School of Peking UniversityNational Center of GerontologyBeijingChina Department of General Surgery Beijing HospitalThe Fifth Clinical Medical School of Peking UniversityNational Center of GerontologyBeijingChina

Sigmoid metastasis of renal cell carcinoma(RCC)is very *** we report a case of pathologically proven asynchronous abdominal wall and sigmoid metastases after a right *** 84-year-old man underwent right radical nephrectomy for clear cell renal cell carcinoma(ccRCC)13 years *** contralateral abdominal wall metastasis was found for left abdominal mass 9 years after *** man experienced melena underwent resection of sigmoid colon tumor in February,*** postoperative pathological examinations revealed that the tumors were metastases of *** more than 5 years after nephrectomy has been accepted as late recurrence by the majority of urologists *** recurrence is one of the specific biological behaviors of *** late recurrence of abdominal wall and sigmoid metastases in ccRCC has not been reported *** patients have sigmoid mass after nephrectomy for RCC,doctors may consider the possibility of late recurrence.

关键词： Sigmoid metastasis Late recurrence Renal cell carcinoma Asynchronous metastases Abdominal wall metastasis

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模块化机器人伺服单元总线接入模块的设计

华中科技大学学报（自然科学版） 2011年第S2期39卷 392-394,399页

作者：张方元王硕中国科学院自动化研究所复杂系统智能控制与管理国家重点实验室(筹) 北京100190

针对机器人模块化设计的需求,以及机器人通用通信总线Robbus的协议标准和传输方案,提出了一种面向模块化机器人伺服控制系统的总线接入模块设计方案,并将Robbus通信协议集成在总线接入模块内.研制完成了适用于广州数控交流伺服驱动器的... 详细信息

针对机器人模块化设计的需求,以及机器人通用通信总线Robbus的协议标准和传输方案,提出了一种面向模块化机器人伺服控制系统的总线接入模块设计方案,并将Robbus通信协议集成在总线接入模块内.研制完成了适用于广州数控交流伺服驱动器的总线接入模块,并进行了测试实验.实验结果表明:该总线接入模块能够使伺服驱动器通过总线传输数据,可简化模块化机器人驱动系统结构,并保证了伺服驱动控制的实时性与可靠性.

关键词：模块化机器人通信网络 FPGA 伺服系统单片机 Robbus总线

Preparation of a Cube-Textured Ni-7at.%W Based Template Used for Coated Conductors

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Materials Sciences and Applications 2021年第6期12卷 255-262页

作者： Xu Zhao Yuxin Zheng fangyuan zhang Mangmang Gao Ningxia University Yinchuan China

Although Ni-W substrate with high W content (>5at.%) substrates have been developed successfully, the quality of cube texture and grain boundary, as well as extensive applications in coated conductors should be further improved. In the present work, once intermediate annealing treatment (IAT) at 500°C for 2 h has been employed to optimize the deformation and recrystallization textures in Ni-7at.%W (Ni7W) substrates. As a result, competitive high cube texture content (2Zr2O7 (GZO) buffer layer with strong cube texture and high-quality surface deposited successfully on the Ni7W substrate using the chemical solution deposition method, demonstrating the advanced GZO/Ni7W template is promising for coated conductors.

关键词： NiW Substrate Texture Gd2Zr2O7 Buffer Layer Coated Conductors

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基于自然选择粒子群的时钟同步算法

西南交通大学学报 2017年第3期52卷 593-599页

作者：蒋伊琳张芳园哈尔滨工程大学信息与通信工程学院黑龙江哈尔滨150001

为了提高无线传感器网络的时钟同步精度,避免因不可靠数据和网络拓扑结构变化在同步过程中产生的同步误差,建立了基于自然选择粒子群融合算法仿真模型.首先,采用卡尔曼滤波算法,将多个传感器的测量数据进行局部滤波处理,去除测量数据中... 详细信息

为了提高无线传感器网络的时钟同步精度,避免因不可靠数据和网络拓扑结构变化在同步过程中产生的同步误差,建立了基于自然选择粒子群融合算法仿真模型.首先,采用卡尔曼滤波算法,将多个传感器的测量数据进行局部滤波处理,去除测量数据中最底层的冗余信息,提高测量数据的准确性;其次,采用自然选择粒子群算法建立数据融合模型,计算网络的最优融合估计;最后,对自然选择粒子群融合算法模型进行仿真,结果表明:该算法的融合模型不仅能够对网络中的5个节点时钟进行有效融合,而且可以提高节点晶振的时偏和频偏的融合精度,形成一个具有较高稳定度的虚拟时钟,其时偏和频偏的融合精度主要集中范围分别为10-5和10-7,与传统自适应融合算法相比较,它的时偏和频偏融合精度提高了1个数量级.

关键词：无线传感器网络时钟同步数据融合粒子群算法卡尔曼滤波自适应加权法

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公共数字文化资源整合项目中的角色期待研究

图书情报工作 2015年第11期59卷 28-35页

作者：张芳源武汉大学信息管理学院武汉430072

[目的/意义]探讨参与我国公共数字文化资源整合项目的行为主体构成、各角色的构成及角色职能设置方案,为该类项目的建设提供借鉴。[方法/过程]基于对社会学角色理论中"角色期待"概念框架下几个概念(角色期待中设置与分配、角色职能设置... 详细信息

[目的/意义]探讨参与我国公共数字文化资源整合项目的行为主体构成、各角色的构成及角色职能设置方案,为该类项目的建设提供借鉴。[方法/过程]基于对社会学角色理论中"角色期待"概念框架下几个概念(角色期待中设置与分配、角色职能设置与分配)逻辑关系的梳理,结合相关的文献调研、政府文件,设计角色期待的访谈提纲和调研问卷,对公共文化机构从业者进行调研,对访谈结果和回收的问卷进行总结、分析和探讨。[结果/结论]我国公共数字文化资源整合项目中,同行政级别合作意愿更高;角色分配应结合《文化部信息化发展纲要(2013-2020)》,考虑从业者的角色期待,为各行为主体分配合理的角色,特别注意第三方机构的协调和中介作用;在此基础上,项目建设之初,应该根据已有角色分配对角色职能进行详细扩展。

关键词：文化资源资源整合角色研究职能分析