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Design,Synthesis and Herbicidal Activity of Novel Quinazoline-2,4-Diones

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Design,Synthesis and Herbicidal Activity of Novel Quinazolin...

中国化学会全国第十一届有机合成化学学术研讨会

作者： da-wei wang Qiong Chen Wen-Chao Yang Guang-Fu Yang Key Laboratory of Pesticide & Chemical Biology of Ministry of Education College of ChemistryCentral China Normal University

4-Hydroxyphenylpyruvate dioxygenase(EC 1.***.11.27,HPPD) is an important enzyme in the catabolism of tyrosine,which converts 4-hydroxyphenylpyruvate(HPPA) into homogentisate(HGA).In plants,HGA is an important precursor for the biosynthesis of tocopherol and plastoquinone,two compounds crucial for the normal growth of *** HPPD is inhibited,the plant will be severely damaged by sunlight,becoming bleached and eventually undergoing necrosis and death. Inhibition of HPPD is one of the most promising modes of action of *** is widely reported that quinazoline-2,4-dione is an important chemical scaffolds,because these derivatives often posses a variety of biological activities,such as antitumor,anti-inflammatory,antidiabetic,anti-infective,and antiobesity properties. Although the derivatives of quinazoline-2,4-dione are extensively studied in medical chemistry,the research of them in agrochemicals is very scare,especially the herbicidal activity of them need to be further *** explore the herbicidal activity of quinazoline-2,4-dione derivatives,and study their HPPD-inhibiting activity,we designed and synthesized a series of novel triketone-containing quinazoline-2,*** in vitro tests indicated that many of the newly synthesized compounds displayed good AtHPPD inhibitory activity with K values ranging from 0.005 to 0.668 μ*** addition,the greenhouse experiments indicated that most of the synthesized compounds showed good or excellent herbicidal activity against broadleaf and monocotyledonous weeds at the dosages of 37.5-150 g ai/*** promisingly,some compounds showed significantly improved crop selectivity compared with mesotrione.

关键词： 4-hydroxyphenylpyruvate dioxygenase crop selectivity herbicidal activity quinazoline-2,4-dione triketone-containing

Role of iron ore in enhancing gasification of iron coke:Structural evolution,influence mechanism and kinetic analysis

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 58-69页

作者： Jie wang wei wang Xuheng Chen Junfang Bao Qiuyue Hao Heng Zheng Runsheng Xu School of Chemistry and Materials Science Hubei Engineering UniversityXiaogan 432000China Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education Wuhan University of Science and TechnologyWuhan 430081China Institue of Ironmaking Technology Baosteel Central Research InstituteShanghai 201999China State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China

The utilization of iron coke provides a green pathway for low-carbon *** uncover the influence mechanism of iron ore on the behavior and kinetics of iron coke gasification,the effect of iron ore on the microstructure of iron coke was ***,a comparative study of the gasification reactions between iron coke and coke was conducted through non-isothermal thermogravimetric *** findings indicate that compared to coke,iron coke exhibits an augmentation in micropores and specific surface area,and the micropores further extend and *** provides more adsorption sites for CO_(2) molecules during the gasification process,resulting in a reduction in the initial gasification temperature of iron *** the heating rate in non-isothermal gasification can enhance the reactivity of iron *** metallic iron reduced from iron ore is embedded in the carbon matrix,reducing the orderliness of the carbon structure,which is primarily responsible for the heightened reactivity of the carbon *** kinetic study indicates that the random pore model can effectively represent the gasification process of iron coke due to its rich pore ***,as the proportion of iron ore increases,the activation energy for the carbon gasification gradually decreases,from 246.2 kJ/mol for coke to 192.5 kJ/mol for iron coke 15wt%.

关键词： low-carbon ironmaking iron coke gasification structural evolution kinetic model

Quantum photonic transistor gated by an atom in a Floquet cavity QED system

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Quantum photonic transistor gated by an atom in a Floquet ca...

第十八届全国量子光学学术会议

作者：李浩珍 Han Cai Jingping Xu Yaping Yang da-wei wang 同济大学 Interdisciplinary Center of Quantum Information and Department of Physics Zhejiang University Key Laboratory of Advanced Micro-Structured Materials of Ministry of Education School of Physics Science and EngineeringTongji University

Photons, which are regarded as one of the most suitable quantum information carriers, play a crucial role in quantum communication and quantum information processing. Thus, how to control and manipulate the photon propagation in a quantum system attracts much attention. In this work, we continue the study of photon transmission features based on Ref. [1]. The input-output relations of the system composed of three periodically modulating cavities interacting with a two-level atom have been discussed in detail. The results show that the input-output relations of the system depend both on the atomic states and the coupling constant between the cavities. Thus, the photon transport can be controlled by manipulating the atomic state and carefully selecting the parameter regime, and our scheme can be used to realize an optical switch/transistor.

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A Novel SVPWM Algorithm for Four-quadrant rectifier

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A Novel SVPWM Algorithm for Four-quadrant rectifier

2011 Chinese Control and Decision Conference（CCDC）

作者： Lei Sun,da-wei wang are with the Beijing University of Civil Engineering and Architecture,Beijing 100044,China

The topology of four-quadrant rectifier is presented in this *** basic principle of space voltage pulse width modulation was *** for 7-zone modes by using the vector summation *** use voltage and current loop control system,and set up mathematical *** found a model in Simulink/Matlab,the experimental results validate the feasibility of the control system,which can achieve steady DC voltage,fast response and low load change sensitivity to disturbance.

关键词： Four-quadrant Space voltage pulse width modulation Control system

High Performance Electrothermal Simulation of Large-scale RRAM Array and Its Electrothermal Management

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High Performance Electrothermal Simulation of Large-scale RR...

2020年全国微波毫米波会议

作者： da-wei wang Wen-Sheng Zhao Wenchao Chen Hao Xie Wen-Yan Yin Innovative Institute of Electromagnetic Information and Electronic Integration College of Information Science and Electronic EngineeringZhejiang University School of Electronics and Information Hangzhou Dianzi University

Resistive Random Access Memory（RRAM） technology,a promising candidate for the next generation nonvolatile memory integration,is attracting more and more attention in the ***,thermal issue is one of the most critical problems and must be treated appropriately in the development of 3 D RRAM array,as the temperature highly affects its switching behavior and *** this work,an in-house simulator,based on a hybrid numerical discretization scheme,is developed to study electrothermal effects in large-scale RRAM ***,in order to enhance the capability of the simulator for simulating large scale structures,J parallel Adaptive Unstructured Mesh applications INfrastructure（JAUMIN） and domain decomposition method（DDM） based double-level parallel scheme is utilized in the developed in-house *** is validated by comparing the results with that of commercial ***,thermal management method is proposed and it is performed with the help of in-house simulator,where the thermal management structure can be used for reducing thermal crosstalk in high density RRAM arrays effectively.

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新型混合式高压直流输电DC/DC变换器

电力系统自动化 2018年第7期42卷 116-122页

作者：李彬彬张书鑫程达王卫徐殿国哈尔滨工业大学电气工程及自动化学院黑龙江省哈尔滨市150001

针对高压直流电网中现有DC/DC变换器拓扑在成本、效率方面的不足,提出了一种基于模块串联技术以及晶闸管、二极管串联技术的混合式DC/DC变换器拓扑,以实现高压直流电网中不同电压等级的互联。对该拓扑结构的工作原理、控制策略、元器件... 详细信息

针对高压直流电网中现有DC/DC变换器拓扑在成本、效率方面的不足,提出了一种基于模块串联技术以及晶闸管、二极管串联技术的混合式DC/DC变换器拓扑,以实现高压直流电网中不同电压等级的互联。对该拓扑结构的工作原理、控制策略、元器件参数设计、经济性等方面进行了全面的分析论证。最后,在MATLAB中进行了仿真,验证了所提DC/DC变换器的可行性。

关键词：高压直流输电直流电网 DC/DC变换器模块串联技术模块化多电平换流器

High-performance poly(aromatic pyridine) copolymers with crown ether moieties for high temperature polymer electrolyte membrane fuel cells

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Science China Chemistry 2025年

作者： Qian wang Songhao Zhao Yunpeng Guo wei wei Lele wang Jingshuai Yang Department of Chemistry College of Sciences Northeastern University Institute of Metal Research Chinese Academy of Sciences

This study concentrates on the development of high temperature polymer electrolyte membranes（HT-PEMs）, which are essential components for HT-PEM fuel cells（HT-PEMFCs）. Although the phosphoric acid（PA）-doped polybenzimidazole（PBI） has been regarded as the successful HT-PEM, this system still suffers from several challenges, including the use of carcinogenic monomers, complex synthesis procedures, and poor solubility in organic solvents. To develop more cost-effective, readily synthesized and high-performance alternatives, this study employs a simply superacid-catalyzed Friedel-Crafts reaction to synthesize a series of poly（triphenyl-co-dibenzo-18-crown-6 pyridine） copolymers, denoted as P(TPx%-co-CEy%), using ptriphenyl, dibenzo-18-crown-6 and 4-acetylpyridine as monomers. The copolymerized hydrophilic and bulky crown ether unites introduce large free volumes and multiple interaction sites with PA molecules, as elucidated by theoretical *** microphase separation structures are formed as confirmed by atomic force microscope（AFM）, transmission electron microscopy（TEM） and small-angle X-ray scattering（SAXS）. Thus P(TPx%-co-CEy%) membranes exhibit excellent PA absorption and proton conduction abilities. For example, after immersing in 85 wt% PA at 30 °C, the P(TP91%-co-CE9%) membrane achieves a PA doping content of 205% and a high conductivity of 0.138 S cm-1at 180 °C, while maintaining a tensile strength of 7.5 MPa at room temperature. Without humidification and backpressure, the peak power density of an H2-O2cell equipped with P(TP91%-co-CE9%)/205%PA reaches nearly 1200 mW cm-2, representing one of the highest performances reported for PA-doped HT-PEMs to date. This work demonstrates the enormous potential of poly（triphenyl-co-crown ether pyridine） membranes in the HT-PEMFC applications.

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3D打印中一种快速分层处理算法的研究

组合机床与自动化加工技术 2017年第9期 50-54,58页

作者：刘大伟王苏洲南京工程学院自动化学院南京工业大学电气工程与控制科学学院

通过对3D打印中STL数据模型分层规则的分析建立有向加权图数据结构,该数据结构在找到邻接三角形的同时也记录了其权值信息,运用图的深度优先遍历法,建立递归搜索函数,针对递归切片中出现的三角形"点切"问题,提出了一种基于STL模型的快... 详细信息

通过对3D打印中STL数据模型分层规则的分析建立有向加权图数据结构,该数据结构在找到邻接三角形的同时也记录了其权值信息,运用图的深度优先遍历法,建立递归搜索函数,针对递归切片中出现的三角形"点切"问题,提出了一种基于STL模型的快速分层算法即分组排序的有向加权递归算法。此算法通过对三角形面片分组排序后,进行有向加权图递归搜素,获得三角形面片之间有序排列的交点,在Open GL环境中实现了截面轮廓的自动生成,根据每个轮廓环切割的第一个三角形面片数据,确定截面轮廓的走向。实验结果证明该算法可以减少面片之间建立拓扑关系的时间,实现简单,稳定可靠。

关键词： 3D打印分层算法 STL模型

Research and prospect on extraction of vanadium from vanadium slag by liquid oxidation technologies

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Transactions of Nonferrous Metals Society of China 2014年第5期24卷 1273-1288页

作者：王中行郑诗礼王少娜刘彪王大卫杜浩张懿中国科学院过程工程研究所湿法冶金清洁生产技术国家工程实验室北京100190 中国科学院大学化学与化学工程学院北京100049 中国矿业大学(北京)化学与环境工程学院北京100083

A series of innovative green metallurgical processes using novel reaction media including the NaOH/KOH sub-molten salt media and the NaOH-NaNO3 binary molten salt medium, for the extraction of vanadium and chromium from the vanadium slag have been developed. In comparison with the traditional sodium salt roasting technology, which operates at 850 ℃, the operation temperatures of these new processes drop to 200-400 ℃. Further, the extraction rates of vanadium and chromium utilizing the new approaches could reach 95% and 90%, respectively, significantly higher than those in the traditional roasting process, which are 75% and approximate zero, respectively. Besides, no hazardous gases and toxic tailings are discharged during the extraction process. Compared with the conventional roasting method, these new technologies show obvious advantages in terms of energy, environments, and the mineral resource utilization efficiency, providing an attractive alternative for the green technology upgrade of the vanadium production industries.

关键词： vanadium slag liquid oxidation sub-molten salt molten salt vanadium chromium extraction