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Temperature Dependent Assembly, Structural Diversity and Luminescent Property in Two Novel Cd Coordination Polymers

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Chinese Journal of Structural Chemistry 2015年第6期34卷 945-952页

作者： WANG jian LIN Ping DU shao-Wu State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Graduate University of Chinese Academy of Sciences

Temperature dependent assembly of two novel Cd coordination polymers with the phen and H2MIP ligands （phen = 1,10-phenanthrolion and H2MIP = 5-methyl-isophthalic acid）, formulated as Cd2（MIP）2（phen）2 （1） and Cd3（MIP）3（H2MIP）（phen）2 （2）. They have been structurally characterized by single-crystal X-ray diffraction, elemental analysis, FT-IR spectra and TGA. 1 crystallizes in the monoclinic space group P2/n, while 2 crystallizes in the triclinic space group P1. 1 shows a 2D （two-dimensional） plane and 2 shows a 1D （one-dimensional） chain. In addition, their solid-state luminescent properties have also been investigated.

关键词： temperature dependent assembly 2D 1D luminescent

Asymptotic properties of Lasso in high-dimensional partially linear models

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Science China mathematics 2016年第4期59卷 769-788页

作者： ma Chi HUANG jian Department of Applied mathematics Anhui University of Science and Technology School of Statistics and management Shanghai University of Finance and Economics Department of Statistics and Actuarial Science and BiostatisticsUniversity of Iowa

We study the properties of the Lasso in the high-dimensional partially linear model where the number of variables in the linear part can be greater than the sample *** use truncated series expansion based on polynomial splines to approximate the nonparametric component in this *** a sparsity assumption on the regression coefficients of the linear component and some regularity conditions,we derive the oracle inequalities for the prediction risk and the estimation *** also provide sufficient conditions under which the Lasso estimator is selection consistent for the variables in the linear part of the *** addition,we derive the rate of convergence of the estimator of the nonparametric *** conduct simulation studies to evaluate the finite sample performance of variable selection and nonparametric function estimation.

关键词： Lasso irrepresentable condition restricted eigenvalue semiparametric models sparsity

Generalized Kannan-type contraction and fixed point theorems

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Applied mathematics(A Journal of Chinese Universities) 2023年第2期38卷 235-247页

作者： HAN Yan XU shao-yuan ma Chao School of mathematics and Statistics Zhaotong UniversityZhaotong 657000China Faculty of Innovation Engineering Macao University of Science and TechnologyMacaoChina School of mathematics and Statistics Hanshan Normal UniversityChaozhou 521041China

In this paper,the generalized Kannan-type contraction in cone metric spaces over Banach algebras is *** fixed point theorems satisfying generalized contractive conditions are obtained,without appealing to completeness of X or normality of the *** continuity of the mapping is ***,we prove that the completeness in cone metric spaces over Banach algebras is necessary if the generalized Kannan-type contraction has a fixed point in *** results greatly generalize several well-known comparable results in the literature.

关键词： cone metric spaces over Banach algebras generalized Kannan-type contraction completeness asymptotic regularity xed point

Inhibition Effect of Water Injection on Afterburning of Rocket Motor Exhaust Plume

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Chinese Journal of Aeronautics 2010年第6期23卷 653-659页

作者： jiang Yi ma Yanli Wang Weichen shao Liwu Department of A erospace Engineering Beo'ing Institute of Technology Beijing 100081 China

One of the most important characteristic signatures of the exhaust plume from rocket motor is the aflerbuming phenomenon, and the injected water into the plume could inhibit the afterburning. The calculation model for the gas-liquid multiphase flow field with chemical reaction in the plume is built. By inducing the energy source terms caused by the vaporization of liquid water, condensation of the vapor and chemical reaction in the energy equation, the gas-liquid multiphase flow field and the afterburning phenomenon are calculated in a coupling way. Mixture multiphase flow model is used to calculate the gas-liquid flow field, and the vaporization mechanism is used to investigate the water vaporization process. The temperature contours are obtained and accord well with the experimental photos. The mass fraction contours of primary species are obtained, which can indicate the extent of inhibition effect of water injection on the afterburning phenomenon in the plume. When water is injected into the plume, the region of aflerburning reduces a lot, and temperature on the ground wall declines rapidly, which can decrease the ablation of the combustion gas to the launch ground.

关键词： exhaust plume finite rate chemistry model aflerbuming water injection mixture multiphase flow vaporization coupling solution

Synthesis, Crystal Structure and Antibacterial Activities of 3-[3-Methyl-(2-thienyl)methyl- enehydrazinocarbonyl]-(1H)-1,2,4-triazole

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Chinese Journal of Structural Chemistry 2005年第11期24卷 1286-1289页

作者： YANG jian-Guo PAN Fu-You shao Hong Office of Assets Administration Taizhou University Zhejiang 317000 China Department of Chemistry Taizhou University Zhejiang 317000 China

The title compound, C9H9N5OS, was synthesized by the reaction of 3-（1H）-1,2,4 -triazole hydrazine with 3-methyl-2-thiophenecarboxaldehyde in ethanol. The single crystal structure has been determined by X-ray diffraction analysis. The crystal belongs to monoclinic system, space group P2 1/n with a = 9.5550（10）, b = 11.9847（12）, c = 10.1074（11） A,β= 112.995（2）° V= 1065.47（19） A^3, Z = 4,μ = 0.290 mm^-1, Mr= 235.27, Dc = 1.467 g/cm^3 and F（000） = 488. The structure was solved by direct methods and refined to R = 0.0449. The crystal structure involves intermolecular hydrogen bonds of N-H…O and N-H…N as well as intramolecular hydrogen bond of N-H…N. Its biological activity has also been determined showing this type of compounds has certain antibacterial activity.

关键词： synthesis crystal structure antibacterial activities (1H)-1,2,4-triazole

Expression and mechanism of action of miR-196a in epithelial ovarian cancer

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Asian Pacific Journal of Tropical Medicine 2016年第11期9卷 1082-1087页

作者： Bo Yang Sheng-Ze Li Ling ma Hong-Li Liu jian Liu Jun-Jun shao Department of Female Tumor First Affiliated Hospital of Bengbu Medical College

Objective:To explore the expression,biological function and possible mechanism of action of microRNA molecular-196a(miR-196a) in epithelial ovarian ***:RT-PCR was used to detect the expression quantities of epithelial ovarian tissue,benign ovarian tissue,normal ovary epithelial tissue,ovarian cancer cell lines and miR-196 a in normal ovarian epithelial cells to analyze the relationship between the expression of miR-196 a and the clinical pathologic parameters of ovarian *** those cell lines,the cell line of which miR-196 a expressed the most or least was selected and transfected the ovarian cancer cell line by using negative control plasma and miR-196 a *** transfection,RT-PCR was used to test the expression quantity of miR-196 a,Transwell chamber method was applied to determine the migration and invasion abilities of ovarian carcinoma cells and Western blot was employed to detect the expression of HOXA10 ***:The relative expression quantities of miR-196 a in ovarian cancer tissue and benign ovarian tissue were significantly higher than that in normal ovarian epithelial tissue,and the expression quantity of miR-196 a in ovarian cancer tissue was distinctively higher than that in benign ovarian tissue(P 0.05).Compared with normal ovarian epithelial cell line IOSE80,the expression quantities of miR-196 a of all ovarian cancer cell lines increased obviously and differences were statistically significant(P < 0.05).Among them,the expression of miR-196 a of ovarian cancer cell line SKOV3 was the highest,while it decreased significantly(4.678 ± 0.785 vs.2.131 ± 0.345,t = 2.938,P < 0.

关键词： MiR-196a Epithelial ovarian cancer Migration Invasion HOXA 10

Concurrent severe hepatotoxicity and agranulocytosis induced by Polygonum multiflorum:A case report

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World Journal of Clinical Cases 2022年第27期10卷 9921-9928页

作者： You-Lin shao Chun-Ming ma jian-Ming Wu Feng-Cai Guo Suo-Cai Zhang Department of Hepatology Changzhou Third People's HospitalChangzhou 213001Jiangsu ProvinceChina

BACKGROUND Various types of drug-induced liver injury are induced by Polygonum multiflorum(PM);however,it rarely causes ***,we report the case of a 65-year-old woman with concurrent severe hepatotoxicity and agranulocytosis induced by *** SUMmaRY A 65-year-old woman reported with severe hepatotoxicity and agranulocytosis 17 d after ingestion of *** results of the Roussel Uclaf Causality Assessment Method demonstrated a highly probable relationship between hepatotoxicity and PM,with a total score of *** Naranjo algorithm results indicated that agranulocytosis had a probable relationship with PM,with an overall score of *** colony-stimulating factor(for once),a steroid,compound glycyrrhizin,and polyene phosphatidylcholine therapy were *** 15 d of treatment,there was a gradual improvement in liver biochemistry,leukocytes,and neutrophils *** Concurrent hepatotoxicity and agranulocytosis are rare and critical adverse drug reactions of PM,which should be highly valued.

关键词： Polygonum multiflorum Hepatotoxicity Agranulocytosis Case report

Elongational Flow-induced Crystallization of Poly(L-lactic acid)Telechelic Ionomers

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Chinese Journal of Polymer Science 2024年第12期42卷 1957-1965,I0010页

作者： Fan Liu shao-Yong Huang jian Tang Quan Chen State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022China

In this study,we prepared unentangled and slightly entangled poly(L-lactic acid)telechelic ionomer samples(Mn=5 and 16 kg/mol)based on sodium sulfonate *** telechelic samples exhibit extremely slow crystallization kinetics below the melting temperature T_(m) and above the glass transition temperature T_(g),which enables us to examine the linear viscoelasticity of the ionomer melt samples *** application of either the shear flow(at 85℃)or elongational flow(between 70 and 90℃)strongly accelerates the crystallization,leading to strong strain hardening and formation of highly orientedα*** on the relative average rates of the strain-induced dissociation and strain-induced crystallization,the stress evolution can be classified into two cases,and the critical work for strain-induced crystallization is higher in case where the strain-induced dissociation occurs earlier than the strain-induced crystallization.

关键词： Polylactides telechelic ionomers Flow-induced crystallization Strain-induced dissociation

Enantioselective three-component Ugi reaction catalyzed by chiral phosphoric acid

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Science China Chemistry 2020年第1期63卷 47-54页

作者： jian Zhang Yi-Yan Wang He Sun shao-Yu Li shao-Hua Xiang Bin Tan School of Chemistry and Chemical Engineering Harbin Institute of TechnologyHarbin 150001China Department of Chemistry and Shenzhen Grubbs Institute Southern University of Science and TechnologyShenzhen 518055China Academy for Advanced Interdisciplinary Studies Southern University of Science and TechnologyShenzhen 518055China

A catalytic enantioselective three-component Ugi reaction was ***-derived phosphoric acid with bulky 2,4,6-tricyclohexylphenyl groups at the 6,6′positions was found to be the best catalyst to affordα-amino amide derivatives in good to excellent yields(62%to 99%)and enantiocontrol(81%to>99%enantiomeric excess).This asymmetric reaction was applicable well to an array of aliphatic *** gram-scale synthesis,modification of dapsone,and enantioselective synthesis of(R)-Lacosamide underline the general utility of this *** of dihedral angles and substituents of the chiral phosphoric acids on the enantioselectivity was also discussed in this article.

关键词： α-amino amide Ugi reaction chiral phosphoric acid enantioselectivity Lacosamide