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Nickel-catalysed C-O bond reduction of 2,4,6-triaryloxy-1,3,5-triazines in 2-methyltetrahydrofuran

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Chinese Chemical Letters 2019年第2期30卷 409-412页

作者： Yaoyao Wang Jun Shen Qun Chen Liang Wang mingyang he School of Petrochemical Engineering Jiangsu Key Laboratory of Advanced Catalytic Materials ξ Technology Changzhou University

A nickel-catalysed reduction of phenol derivatives activated by 2,4,6-trichloro-1,3,5-triazine (TCT) in ecofriendly 2-methyltetrahydrofuran (2-MeTHF) is described. The phenol-TCT derivatives were readily prepared using grinding method in short time without further purification. This catalytic system allowed the facile C-O cleavage of phenol-TCT derivatives under mild reaction conditions with high efficiency and good functional group tolerance. Gram-scale reaction was also achieved. Particularly, sequential functionalization of phenol-TCT derivatives followed by C-O bond reduction could also be realized,affording the high value-added products in moderate to good yields.

关键词： Nickel catalysis Phenol derivatives C-O bond cleavage Green solvent

Catalytic Thiourea Promoted Electrophilic Thiocyanation of Indoles and Aromatic Amines with NCS/NH4SCN

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Chinese Journal of Chemistry 2016年第11期34卷 1081-1085页

作者： Cancan Wang Zhonghao Wang Liang Wang Qun Chen mingyang he School of Petrochemical Engineering Changzhou University Changzhou Jiangsu 213164 China

A simple and efficient protocol for the electrophilic thiocyanation of indoles and aromatic amines with thiourea/NCS/NH4SCN system has been developed. The major features of the present procedure are the mild conditions, good yields, short reaction times, and the use of inexpensive and readily available organocatalyst. Moreover, N-chlorosueeinimide （NCS） was found to be indispensable, and thiourea could greatly promote the reaction.

关键词： thiocyanation indoles aromatic amines catalytic thiourea N-chlorosuccinimide

A study on the design of a hybrid policy for carbon abatement

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Chinese Journal of Population,Resources and Environment 2017年第1期15卷 50-57页

作者： Bo Zhang mingyang he Haoran Pan School of Economics Peking University School of Economics and Resource Management Beijing Normal University

A necessary way to mitigate global warming is carbon reduction, which the international community is now actively promoting. China has committed a target goal for carbon reduction to the international society, and has devoted a great effort toward researching the impact of related policies. Carbon taxation and carbon trading are the two main mechanisms to advocate carbon abatement, which many countries have been using. Each of these two mechanisms possesses advantages and disadvantages, and an appropriate combination of them can make best use of their advantages while bypassing their disadvantages, creating a superior mechanism. In our opinion, the main differences between these two mechanisms are that carbon taxation has a lower institution cost(consisting of the related infrastructural investment and the regulation cost,etc), and is easier to operate, but lacks the flexibility in response to variations of market conditions. However, this flexibility is just the origin of risk, which increases the difficulty for firms in their decision of carbon abatement and is an indirect way to incentivize carbon abatement, compared to carbon trading, which has a more direct effect in carbon reduction. Based on the above observation, we present a hybrid mechanism of carbon abatement, which is an organized combination of carbon taxation and carbon trading. It consists of two parts: first, the carbon taxation, which has a progressive tax rate, second, the carbon trading. Small firms will only pay the carbon tax, while large firms, will first need to get the initial carbon emission quotas by some way, and then trade it in the carbon market if necessary. For firms with extra emissions,they will receive a punishment according to a high carbon tax rate. This hybrid policy considers the equity between different firms in carbon emission rights as well as the efficiency of the mechanism while decreasing the risk level for firms in the carbon emission decision, making it superior to the t

关键词： Carbon tax carbon trading hybrid policy

Preparation of hybridizing zeolitic imidazolate frameworks with carboxymethylcellulose for adsorption separation of n-hexane/3-methylpentane

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Chinese Journal of Chemical Engineering 2021年第1期34卷 103-109页

作者： Xiujuan Li Le Chen Dandan Zhu Song Yang Zhong Wu mingyang he Zhihui Zhang Qun Chen Jiangsu Key Laboratory of Advanced CatalyticMaterials and Technology Advanced Catalysis and Green Manufacturing Collaborative Innovation CenterChangzhou UniversityChangzhou 213164China

A novel ZIF-8-CMC hybrid material was fabricated from the hybridization of ZIF-8 and carboxymethylcellulose(CMC) by impregnation method for n-hexane/3-methylpentane *** surface properties of ZIF-8 were tailored by introducing CMC into ZIF-8 *** this work,adsorption separation of n-hexane(nheX) and 3-methylpentane(3 MP) on ZIF-8-CMC were investigated by batch vapor-phase adsorption and liquid-phase breakthrough *** adsorption selectivity of nheX/3 MP reversed from preferable adsorption of nheX to preferable adsorption of 3 MP upon the increasing of CMC containing in the hybrid *** the temperature increases,the adsorption amounts of nheX and 3 MP *** the increasing of CMC contents,the nheX uptake decreased,the uptake capacity of 3 MP increased *** liquid-phase breakthrough adsorption,the dynamic adsorption capacity of nheX also decreased with the increasing of temperature.

关键词： Zeolitic imidazolate frameworks Carboxymethylcellulose(CMC) n-hexane Adsorption separation

Synthetic Control of Thorium Metal-Organic Frameworks for Sequencing and Sensing of Radioiodine Species

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Chinese Journal of Chemistry 2024年第1期42卷 20-28,I0004页

作者： Yu Ju Zi-Jian Li xue Wang Jie Qiu Yiuhon Chan Zhi-Hui Zhang mingyang he Jian Lin Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology Changzhou UniversityNo.21Gehu Middle RoadChangzhouJiangsu 213164China Schoolof Nuclear Science and Technology Xi'an Jiaotong UniversityNo.28West Xianning RoadXianShaanxi 710049China Key Laboratoryof Interfacial Physics and Technology Shanghai Institute of Applied PhysicsChinese Academy of Sciences2019JiaLuoRoadShanghai 201800China

Exploring the physiochemical properties and expanding the applications of actinide-containing materials is paramount to address the escalating challenge of radioactive waste ***,unlocking the full potential of these materials is largely crippled by the radiotoxicity of the *** report here two porous and luminescent thorium-based metal-organic frameworks(Th-BITD-1 and Th-BITD-2)that serve as a bifunctional platform for sequencing and sensing of radioiodine,a much more radioactive fission product discharged during the nuclear fuel *** particular,Th-BITD-1 displays better iodine uptake performance than Th-BITD-2 via the solution-based process and vapor diffusion with the maximum adsorption capacities of 831 and 1099 mg/g,*** thermore,Th-BITD-1 can function as a highly sensitive luminescence sensor for iodate with a quenching constant(Ksv)of 6.6(5)×10^(3) M^(-1)and a detection limit of 2.02μM,respectively,outperforming 2.96(6)×10^(3)M^(-1)and 10.5μM of ***,a positive correlation between the sensing efficacy and the iodate adsorption capacity has been *** work highlights the opportunity in designing novel actinide-based MOFs for their potential applications in radiological fields,e.g.,radionuclide separation and detection.

关键词： Thorium Metal-organic frameworks Adsorption Detection lodine Actinides Radiochemistry Luminescence

STX5 Inhibits hepatocellular Carcinoma Adhesion and Promotes Metastasis by Regulating the PI3K/mTOR Pathway

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Journal of Clinical and Translational hepatology 2023年第3期11卷 572-583页

作者： Bin Zhang Ziyin Zhao Youpeng Wang Tingting Guo mingyang he Ge Guan Pai Peng Jinzhen Cai Bingyuan Zhang Xutao Liu Qiaoling Song Key Laboratory of Marine Drugs Ministry of Education School of Medicine&PharmacyOcean University of ChinaQingdaoShandongChina Organ Transplantation Center The Affiliated Hospital of Qingdao UniversityQingdaoShandongChina Department of hepatobiliary and Pancreatic Surgery The Affiliated Hospital of Qingdao UniversityQingdaoShandongChina Samueli School of Engineering University of California Los AngelesLos AngelesCAUSA

Background and Aims:Syntaxin 5(STX5)is a member of the syntaxin or target-soluble SNAP receptor(t-SNARE)fam-ily and plays a critical role in ***,its function and molecular mechanism in tumor cell migration are still *** role of STX5 in influencing hepatocellular carci-noma(HCC)is an important topic in our ***:By using quantitative reverse transcription polymerase chain reaction(qPCR),western blotting,and immunohistochemical analysis of RNA and protein in tissues,we comprehensively evaluated data sets from public databases and clinical patient cohorts for *** correlation of STX5 expression with the clinicopathological characteristics of HCC patients were *** addition,we predicted signal pathways from dif-ferentially expressed genes(DEGs)and the Cancer Genome Atlas(TCGA)databases,and confirmed the prediction using integrated transcriptome and *** further investi-gated the underlying mechanisms of STX5 in the migration and adhesion of HCC cells both in vitro and in ***:In the TCGA dataset and our patient cohort,STX5 levels were significantly higher in HCC tissues than in adjacent normal liver *** the same time,high expression of STX5 pre-dicted worse prognosis in patients with liver *** ex-pression of STX5 indicates the decrease of adhesion and the increase of migration of HCC cells,and the conversion of epi-thelial-mesenchymal transition(EMT)in vitro via PI3K/mTOR pathway ***,when Sirolimus,a phospho-inositide 3-kinase(PI3K)/AKT/mechanistic target of rapa-mycin(mTOR)inhibitor acts on cells simultaneously,STX5 overexpression-mediated enhancement of HCC metastasis is ***-negative regulation of STX5 and mTOR further enhanced the inhibitory effect of STX5 on HCC *** vivo,STX5 knockdown inhibited the metastasis of HCC ***:Our study demonstrates a novel research result that STX5 promotes HCC metastasis through PI3K/mTOR *** believe th

关键词： Syntaxin 5 hepatocellular carcinoma PI3K/mTOR Epithelial-mes-enchymal transition

Robust Nonlinear Servo Control of Permanent Magnet Synchronous Motor Based on Finite-time Extended State Observer

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Robust Nonlinear Servo Control of Permanent Magnet Synchrono...

CoMo/MgO催化剂的制备及其对4,6-二甲基二苯并噻吩的加氢脱硫性能

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作者： mingyang he Junhui he Guoyang Cheng College of Electrical Engineering and Automation Fuzhou University Group R&D Center Shenzhen INVT Electric Co.LTD The Fuzhou University-INVT Industrial Control Joint Laboratory

In this paper,a nonlinear servo control method based on finite-time observer is developed for position control of permanent magnet synchronous motor(PMSM).The nonlinear servo control law consists of two parts,where the linear part is responsible for the fast dynamic response and the nonlinear part is responsible for reducing the overshoot when the system approaches the steady *** tackle the time-varying uncertainty occurring in the system,a finite-time extended state observer is proposed to estimate the lumped disturbance for feed-forward compensation in the control *** and experimental results verify that the proposed control scheme can track the target position quickly and accurately,and is robust against disturbance and uncertainty.

关键词： nonlinear control finite time permanent magnet synchronous motor feedforward compensation

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石油学报（石油加工） 2019年第4期35卷 676-684页

作者：郑世富张磊何明阳常州大学石油化工学院

以高比表面积的纳米氧化镁(MgO)为载体,分别以四硫代钼酸铵、钼酸铵为Mo源,采用浸渍法制备了MgO负载的催化剂CoMo/MgO-S和CoMo/MgO-O;并对硫化后的催化剂进行了N2吸附-脱附、XPS、TEM等系列表征;以4,6-二甲基二苯并噻吩(4,6-DMDBT)为模... 详细信息

以高比表面积的纳米氧化镁(MgO)为载体,分别以四硫代钼酸铵、钼酸铵为Mo源,采用浸渍法制备了MgO负载的催化剂CoMo/MgO-S和CoMo/MgO-O;并对硫化后的催化剂进行了N2吸附-脱附、XPS、TEM等系列表征;以4,6-二甲基二苯并噻吩(4,6-DMDBT)为模型化合物,考察了CoMo/MgO-S和CoMo/MgO-O的加氢脱硫活性。结果表明:与CoMo/MgO-O催化剂相比,CoMo/MgO-S具有比表面积大、Mo物种的硫化程度高、活性相堆垛层数多等特点;以CoMo/MgO-S为催化剂,4,6-DMDBT的转化率为70.8%,分别高于CoMo/γ-Al2O3-O和CoMo/MgO-O催化剂的59.8%和52.3%;进一步消除传质的影响,得到CoMo/MgO-S催化剂的催化转化频率(TOF)为2.2h-1,优于CoMo/MgO-O催化剂。

关键词：加氢脱硫四硫代钼酸铵 MgO CoMo催化剂

不同硅铝比Hβ沸石对二甲苯异构体吸附动力学的研究

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石油化工 2010年第3期39卷 291-295页

作者：陈乐陈群何明阳江苏工业学院江苏省精细石油化工重点实验室江苏常州213164

通过静态吸附实验,测定了常温下对二甲苯和间二甲苯在不同硅铝比(SiO2与Al2O3的摩尔比)Hβ沸石上的吸附动力学数据。实验结果表明,Hβ沸石对对二甲苯和间二甲苯的平衡吸附量均随对二甲苯和间二甲苯初始浓度的增加而升高,相同条件下对二... 详细信息

通过静态吸附实验,测定了常温下对二甲苯和间二甲苯在不同硅铝比(SiO2与Al2O3的摩尔比)Hβ沸石上的吸附动力学数据。实验结果表明,Hβ沸石对对二甲苯和间二甲苯的平衡吸附量均随对二甲苯和间二甲苯初始浓度的增加而升高,相同条件下对二甲苯在Hβ沸石上的吸附量和吸附速率均大于间二甲苯;对二甲苯/间二甲苯在硅铝比为25和280及全硅Hβ沸石上的平衡分离系数分别为4.1,1.7,1.6,硅铝比为25的Hβ沸石吸附分离对二甲苯/间二甲苯的效果最好。对二甲苯在Hβ沸石上的吸附过程符合二级吸附动力学方程,间二甲苯在Hβ沸石上的吸附动力学数据与颗粒内扩散模型有较好的相关性。

关键词：对二甲苯间二甲苯 Hβ沸石硅铝比吸附分离吸附动力学