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Journal of Iron and Steel Research International 2023年第1期30卷 51-63页

作者： Hang-hang Zhu Min wang Cheng Yao zhong-liang wang Xiao-liang wang Yan-ping Bao State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China Technical Support Center for Prevention and Control of Disastrous Accidents in Metal Smelting Beijing 100083China Fengbao Special Steel Co. Ltd.Linzhou 456552HenanChina

The flow-field index in a 41-ton six-strand tundish is considered through adjusting the ratio of the casting velocity between the strands to eliminate the negative impact of iso-velocity casting in multi-strand tundish on the consistency of each strand due to the large ratio of length to width with narrow shape structure,resulting in poor consistency of each *** particular,the response time of strand-1 and strand-6 is relatively long,which affects the uniformity of the temperature field and flow field of the entire *** the basis of verifying that the error between the numerical simulations and hydraulic experiments is less than 6%,six cases with the casting velocity ratio changing from 0.8 to 1.3(with an interval of 0.1)are considered by calculation of numerical *** is concluded that the consistency of each flow can be obviously improved by increasing the casting velocity ratio between side-strand and *** increasing the casting velocity ratio,the flow field in the tundish became much active,the temperature field presented well uniformity,and the tracer concentration distribution in local dead zones was improved.

关键词： Six-strand tundish Non-iso-velocity casting Casting velocity ratio Residence time distribution curve Tracer concentration

Mechanism of rhodium(Ⅲ)-catalyzed formal C(sp^3)-H activation/spiroannulation of a-arylidene pyrazolones with alkynes:A computational study

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Chinese Chemical Letters 2018年第9期29卷 1355-1358页

作者： Hongyan Zou zhong-liang wang Yang Cao Genping Huang Tianjin Key Laboratory of Water Resources and Environment Tianjin Normal University Tianjin 300387 China Department of Chemistry School of Science Tianjin University Tianjin 300072 China Institute of New Energy Shenzhen 518031 China

The rhodium-catalyzed formal C（sp^3）-H activation/spiroannulation of α-arylidene pyrazolones with alkynes was investigated by means of density functional theory calculations. The calculations indicate that the spiroannulation through the proposed C-C reductive elimination is kinetically unfeasible, Instead, the C-C coupling from the eight-membered rhodacycle was proposed to account for the experimental results. The overall catalytic cycle consists of six steps：（1） the keto-enol isomerization; （2） the O-H deprotonation, （3） the C（sp^2）-H bond cleavage; （4） the migratory insertion of alkyne into the Rh-C bond; （5） the C-C coupling and （6） the regeneration of the active catalyst.

关键词： Rhodium Spiroannulation C-H activation Reaction mechanism DFT calculations

Liquidus Temperatures of System Na_3AlF_6-K_3AlF_6-AlF_3 for Aluminum Electrolysis at Lower Temperature

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Chemical Research in Chinese Universities 2011年第6期27卷 1019-1022页

作者： WEI Chen-juan LAI Yan-qing LI Jie TIAN zhong-liang wang Jia-wei ZOU zhong LIU Ye-xiang School of Metallurgical Science and Engineering Central South University Changsha 410083 P. R. China

Liquidus temperatures in the molten salt system Na3AlF6-K3AlF6-AlF3 of interest for aluminum electrolysis were determined by thermal analysis method. The results were presented and an empirical equation describing liquidus temperatures for primary crystallization was derived t=1003.5–0.081×A2.3159–5.87×B0.657–0.024×A2.22×B1.14＋ 0.035×A2.17×B1.084, where t is the liquidus temperature in degree Celsius, A denotes the mass fraction of AlF3 in system Na3AlF6-K3AlF6- AlF3, and B denotes K3AlF6/（Na3AlF6＋K3AlF6 ） in mass（%, the value was defined as KR in this paper）. The composition limitations are 0w（AlF3）30%, and 0KR50%. The isothermal diagram of molten salt system Na3AlF6-K3AlF6-AlF3 was obtained in this composition limitation.

关键词： Liquidus temperature Na3AlF6-K3AlF6-AlF3 system Empirical equation

Self-Learning and Its Application to Laminar Cooling Model of Hot Rolled Strip

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Journal of Iron and Steel Research International 2007年第4期14卷 11-14页

作者： GONG Dian-yao XU Jian-zhong PENG liang-gui wang Guo-dong LIU Xiang-hua State Key Laboratory of Rolling Technology and Automation Northeastern University Shenyang 110004 Liaoning China

The mathematical model for online controlling hot rolled steel cooling on run-out table （ROT for abbreviation） was analyzed, and water cooling is found to be the main cooling mode for hot rolled steel. The calculation of the drop in strip temperature by both water cooling and air cooling is summed up to obtain the change of heat transfer coefficient. It is found that the learning coefficient of heat transfer coefficient is the kernel coefficient of coiler temperature control （CTC） model tuning. To decrease the deviation between the calculated steel temperature and the measured one at coiler entrance, a laminar cooling control self-learning strategy is used. Using the data acquired in the field, the results of the self-learning model used in the field were analyzed. The analyzed results show that the self-learning function is effective.

关键词： laminar cooling hot rolled strip self-learning process control model

The quantum chemistry study on the electronic properties of conductive polymers of polypyridinopyridine series

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Chinese Journal of Chemistry 1994年第3期12卷 206-212页

作者： XIE, De-Min SU, zhong-Min SHI, zhong-liang wang, Rong-ShunDepartment of Chemistry, Northeastern Normal University, Changchun, Jilin 130024, China Department of Chemistry Northeastern Normal University Changchun Jilin 130024 China

The molecular structures of thermally structurized polyacrylonitrile (PAN), that is, polypyridinopyridine (PPyPy) series have been investigated by using quantum chemistry semiem-pirical MNDO, CNDO/2-CO methods. The changing regularities of structural stability and electronic properties are pointed out. The analyses of the energy band structures indicate that the energy gaps will become smaller, intrinsical conductivities will increase when the quasi-one-dimentional (1D) series of PPyPy molecule widen toward two-dimention (2D), which is consistent with the experimental results of polymerization degree (PD) and electrical conductivity increase with the increasing of pyrolyzed temperature.

关键词： Polypyridinopyridine conductivity electronic property.

Alumina Solubility in Na_3AlF_6-K_3AlF_6-AlF_3 Molten Salt System Prospective for Aluminum Electrolysis at Lower Temperature

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Chemical Research in Chinese Universities 2012年第1期28卷 142-146页

作者： LI Jie, YUAN Chang-fu, TIAN zhong-liang, wang Jia-wei, LAI Yan-qing and LIU Ye-xiang School of Metallurgical Science and Engineering, Central South University, Changsha 410083, P. R. China Cent S Univ Sch Met Sci & Engn Changsha 410083 Peoples R China

The alumina solubility in the title system within the composition range of KR{m（K3AlF6）/[m（K3AlF6）＋ m（Na3AlF6）]} 10%―50%, a ternary Na3AlF6-K3AlF6-AlF3 molten system with 23%―29%（mass fraction） AlF3 was investigated by measuring the mass loss of a rotating sintered corundum disc. And the following empirical equation was derived when superheat degree was no more than 60 °C： w（Al2O3）sat=A×（T/1000）B, where A= –1.85774＋ 26.754234w（AlF3）–0.3683–0.00783KR2.363＋0.010266KR2.3048＋0.7902w（AlF3）0.00652, B=112.4625–53.2567w（AlF3）0.4236＋ 5.1079w（AlF3）0.9241＋0.01542w（AlF3）1.3540. Considering both higher alumina solubility and not too high superheat de gree are required, alumina solubility of different compositions at not the same temperature but the same superheat degree was studied, which will be more industrial helpful for selecting prospective compositions. The results show that the composition deserved to be further tested in lower temperature cells is 10%―30% KR and 23%―26%（mass fraction） AlF3.

关键词： Alumina solubility Lower temperature electrolyte Na3A1F6-K3A1F6-A1F3 molten salt system Aluminumelectrolysis

A photonic crystal side-coupled waveguide based on a high-quality-factor resonator array

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Chinese Physics B 2012年第3期21卷 275-282页

作者：崔乃迪梁静秋梁中翥王维彪 State Key Laboratory of Applied Optics Changchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of Sciences Graduate University of Chinese Academy of Sciences

Based on the present coupled mode theory of the photonic crystal resonator array in this paper, we propose a novel side-coupled waveguide to achieve highly efficient coupling of photonic crystal devices. It is found that the coupling efficiency is sensitive to the interval, the total number and the quality factor of the resonator. Considering the coupling efficiency and the coupling region, we select five resonators with an interval of six lattice periods. By optimizing the structure parameters of the waveguide and resonator, the quality factors of the resonator can be modulated and the coupling efficiency of the side-coupled waveguide reaches 95.47% in theory. Compared with other coupling methods, the side-coupled waveguide can realize efficient coupling with a compact structure, a high level of integration and a low degree of operational difficulties.

关键词： side-coupled waveguide photonic crystal high-quality-factor cavity

Study on Anti-tumor Mechanism of Poria cocos Based on Network Pharmacology

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TMR Pharmacology Research 2021年第3期1卷 1-11页

作者： Ke-Yi Tang zhong-liang wang Shan Gao Yue Jiao Ru-Yue Li Yan-Chun Tong Yin-Feng Yang Anhui University of Traditional Chinese Medicine HefeiAnhui230038

Background:This paper investigates the anti-tumor mechanism of action of Poria cocos on the basis of network ***:In this paper,we screen the potential active ingredients of Poria cocos by TCMSP and obtain their corresponding targets with *** GeneCards and OMIM databases are used to screen the relevant pathogenic candidate targets in various tumor disease ***,we obtain Poria cocos-tumor common targets by taking the intersection of Poria cocos potential targets and candidate target ***,the protein-protein interaction network(PPI)of common target genes is mapped based on the STRING database,and the"drug-active component-target gene-disease"network is constructed with the help of ***,the core target genes are ***,GO and pathway enrichment analysis of the core target genes are performed by Metascape and ***:38 common targets and 7 core genes(ESR1,MAPK3,MAPK8,MTOR,PIK3CA,JAK2,and IL6)in Poria cocos-tumors are *** play an anti-tumor role by regulating various classical pathways such as PI3K-Akt signaling pathway,mTOR signaling pathway,Prolactin signaling pathway,ErbB signaling pathway,Choline metabolism in ***:The research reveals the effective anti-tumor function of Poria as a multi-component,multi-target and multi-pathway herbal medicine.

关键词： network pharmacology xiangsu powder antibacterial mechanism

Inhibitory effect of quercetin on proliferation of human microvascular endothelial cells in vitro

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Acta Pharmacologica Sinica 2003年第12期24卷 57-60页

作者： FAN Pan-Sheng, GU Zhen-Lun SHENG Rui, liang zhong-Qin, wang Xiao-Xia, ZHU Yi Department of Pharmacology, Institute of Chinese Materia Medica, Soochow University, Suzhou 215007, China Department of Pharmacology Institute of Chinese Materia Medica Soochow University Suzhou 215007 China

AIM: To investigate the role of quercetin (Que) in the proliferation of cultured human skin microvascular endothelial cells (MVEC). METHODS: Cell count and [methyl-~3H]thymidine ([~3H]TdR) uptake assay were used to measure the effect of Que in the proliferation of cultured MVEC. Cytotoxicity of Que on MVEC was also evaluated by51Cr release assay. RESULTS: When MVEC were treated with Que, the proliferation was significantly inhibited in a time-course and dose-dependent manner. Que 5 μmol/L did not inhibit the proliferation of MVEC. When the concentration of Que increased to 20, 40, 80, and 160μmol/L, the cell numbers per well were decreased and the inhibition rate was 12.2％, 23.5％, 35.3％, and 54.1％ respectively with IC50of 138 μmol/L. The inhibitory rate of [~3H]-TdR uptake was 18.7％, 34.4％, 48.9％, and 62.5％ respectively (IC50=87.5 μmol/L).51Cr release assay showed that Que 160μmol/L incubated with MVEC from 1 to 16h had no clear cytotoxicity compared with control group. CONCL

关键词： quercetin vascular endothelium cell division cytotoxicity human

Clinical study of different interventional treatments for primary hepatocellular carcinoma based on propensity-score matching

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World Journal of Gastrointestinal Surgery 2024年第11期16卷 3463-3470页

作者： Xiao-Bo Cheng Li Yang Ming-Qian Lu Yi-Bo Peng Lei wang Shuang-Ming Zhu Zhi-Wei Hu zhong-liang wang Qin Yang Department of Oncology Dangyang People’s HospitalDangyang 444100Hubei ProvinceChina Department of Oncology Yichang Central People’s Hospital(The First Clinical Medical School of China Three Gorges University)Yichang 443008Hubei ProvinceChina

BACKGROUND Transcatheter arterial chemoembolization(TACE)is the main treatment for patients with primary hepatocellular carcinoma(PHC)who miss the opportunity to undergo *** TACE(c-TACE)uses iodized oil as an embolic agent,which is easily washed by blood and affects its ***-eluting bead TACE(DEB-TACE)can sustainably release chemotherapeutic drugs and has a long embolization ***,the clinical characteristics of patients before the two types of interventional therapies may differ,possibly affecting the *** a few studies have compared these two interventions using propensity-score matching(PSM).AIM To analyze the clinical effects of DEB-TACE and c-TACE on patients with PHC based on *** Patients with PHC admitted to Dangyang People’s Hospital(March 2020 to March 2024)were retrospectively enrolled and categorized into groups A(DEB-TACE,n=125)and B(c-TACE,n=106).Sex,age,Child-Pugh grade,tumor-node-meta-stasis stage,and Eastern Cooperative Oncology Group score were selected for 1:1 ***-six patients each were included *** efficacy,liver function indices(aspartate aminotransferase,alanine aminotransferase,total bilirubin,and albumin),tumor serum markers,and adverse reactions were compared between the *** The objective response and disease control rates were significantly higher in group A(80.23%and 97.67%,respectively)than in group B(60.47%and 87.21%,respectively)(P0.05).Post-treatment levels of tumor serum markers were significantly lower in group A than in group B(P<0.05).Patients in groups A and B had mild-to-moderate fever and vomiting symptoms,which improved with conservative *** total incidence of adverse reactions was significantly

关键词： Primary hepatocellular carcinoma Iodized oil Drug-carrying microspheres Transhepatic arterial chemo-embolization Propensity-score matching Curative effect