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Achieving biodegradability enhancement and acute biotoxicity removal through the treatment of pharmaceutical wastewater using a combined internal electrolysis and ultrasonic irradiation technology

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Frontiers of Environmental Science & Engineering 2011年第3期5卷 481-487页

作者： Liang SUN Can WANG min ji Fen WANG School of Environmental Science and Engineering Tianjin UniversityTianjin 300072China

Actual pharmaceutical wastewater was treatedusing a combined ultrasonic irradiation (US) and iron/cokeinternal electrolysis (Fe/C) technology. A significantsynergetic effect was observed, showing that ultrasonicirradiation dramatically enhanced the chemical oxygendemand (COD) removal efficiencies by internal *** effects of primary operating factors on CODremoval were evaluated systematically. Higher ultrasonicfrequency and lower pH values as well as longer reactiontime were favorable to COD removal. The ratio ofbiochemical oxygen demand (BOD) and COD (B/C) ofthe wastewater increased from 0.21 to 0.32 after US-Fe/Ctreatment. An acute biotoxicity assay measuring theinhibition of bioluminescence indicated that the wastewaterwith overall toxicity of 4.3 mg-Zn^(2+)·L^(-1) wasreduced to 0.5 mg-Zn^(2+)·L^(-1) after treatment. Both the rawand the treated wastewater samples were separated andidentified. The types of compounds suggested that theincreased biodegradability and reduced biotoxicityresulted mainly from the destruction of N,N-2 dimethylformamide and aromatic compounds in the pharmaceuticalwastewater.

关键词： internal electrolysis ultrasonic pharmaceutical wastewater biodegradability acute biotoxicity

Eosinopenia is a predictive factor for the severity of acute ischemic stroke

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Neural Regeneration Research 2019年第10期14卷 1772-1779页

作者： Hui-min Zhao Wen-Qian Qin Pei-ji Wang Zhong-min Wen Department of Neurology the Second Affiliated Hospital of Soochow UniversitySuzhouJiangsu ProvinceChina Department of Orthopedics the Second Affiliated Hospital of Soochow UniversitySuzhouJiangsu ProvinceChina

Previous data have revealed an association between eosinopenia and mortality of acute ischemic ***,the relationship of eosinopenia with infarct volume,infection rate,and poor outcome of acute ischemic stroke is still *** retrospective study included 421 patients(273 males,65%;mean age,68.0± 13.0 years)with first acute ischemic stroke who were hospitalized in the Second Affiliated Hospital of Soochow University,China,from January 2017 to February *** data,neuroimaging results,and modified Rankin Scale scores were *** were divided into four groups according to their eosinophil percentage level(3)after adjusting for potential confounding factors(P-trend<0.001).These findings suggest that eosinopenia has the potential to predict the severity of acute ischemic *** study was approved by the Ethics Committee of the Second Affiliated Hospital of Soochow University,China(approval number:K10)on November 10,2015.

关键词： nerve regeneration eosinopenia eosinophil ischemia stroke infarct volume infection clinical outcome neutrophilia risk factors predictive factor neural regeneration

Calculation of the Perturbative Expansion of Wilson Operators on the Lattice

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Chinese Physics Letters 2001年第11期18卷 1442-1445页

作者： LIU Dating WU ji-min CHEN Yhig CCAST(World Lab.) P.O.Box 8730Beijing 100080 Institute of High Energy Physics Chinese Academy of SciencesP.O.Box 918-4Beijing 100039

We introduce an approach to expand gauge-invariant Wilson operators on the lattice. This approach is based on the non-Abelian-Stokes theorem and overcomes the disadvantages of the Luscher-Weisz method. It is also suit... 详细信息

关键词： method. operators invariant

Synthesis and Crystal Structure of a Novel Three-dimensional Complex Ni(Iz)_2(Bdc)(H_2O)_2 (Iz = Imidazole,Bdc = 1,4-Benzenedicarboxylate)

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Chinese Journal of Structural Chemistry 2006年第7期25卷 818-822页

作者： TAN Xiao-Na CHE Yun-Xia ZHENG ji-min Department of Chemistry Nankai University Tianjin 300071 China

A novel nickel（Ⅱ） complex Ni（Iz）2（Bdc）（H2O）2 （Iz = imidazole, Bdc = 1,4-benzenedicarboxylate） has been synthesized and structurally characterized by X-ray analysis. The crystal is of monoclinic, space group P2 1/n with a = 5.5079（5）, b = 15.0973, c = 9.9825（9） A, β = 90.2380（10）°, C14H16N4NiO6, Mr = 395.02, Z = 2, V = 830.08（13） A^3 Dc = 1.580 g/cm^3, μ（MoKa） = 1.208 mm^-1, F（000） = 408, R = 0.0234 and wR = 0.0603 for 1379 observed reflections （I 〉 2σ（I））. In the title complex, adjacent nickel（Ⅱ） ions are bridged through the oxygen atoms of carboxylic groups in syn-anti conformation, yielding an infinite one-dimensional chain. These chains are linked to each other to form a 3-D network structure by three kinds of hydrogen-bonding interactions.

关键词： synthesis crystal structure nickel(Ⅱ) complex 1,4-benzenedicarboxylate

Synthesis and Crystal Structure of 3-Nitrophthalic Acid·3-methyl-4-nitropyridine N-Oxide Adducts

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Chinese Journal of Structural Chemistry 2006年第8期25卷 923-926页

作者： WANG Yi FENG Wei XUE Lin ZHENG ji-min Department of Chemistry Nankai University Tianjin 300071 China

The title compound, a 1：1 molecular adduct of 3-nitrophthalic acid and 3-methyl- 4-nitropyridine N-oxide （PPOM）, has been synthesized and characterized by X-ray single-crystal structure analysis. It crystallizes in triclinic, space group PI with α = 7.6076（15）, b = 7.8180（16）, c = 14.546（3）A, α= 93.90（3）, β = 97.21（3）, γ= 114.43（3）°, C14H1N3O9, Mr = 365.26, Z = 2, V = 774.6（3） A^3, Dc = 1.566 g/m^3,μ（MoKa） = 0.134 mm^-1, F（000） = 376, R = 0.0538 and wR = 0. 1460 for 885 observed reflections （1 〉 2σ（I））. The protons of the carbonylic acids in the molecule are not transferred and the O-H…O and C-H…O hydrogen bonds form zigzag chains in the molecule.

关键词： crystal structure synthesis 3-methyl-4-nitropyridine N-oxide adduct

GLOBAL STABILITY OF ENDEMIC EQUILIBRIUM POINT OF BASIC VIRUS INFECTION MODEL WITH APPLICATION TO HBV INFECTION

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Journal of Systems Science & Complexity 2010年第6期23卷 1221-1230页

作者： Yu ZHENG Lequan min Yu ji Yongmei SU Yang KUANG Information Engineering School University of Science and Technology Beijing Beijing 100083 China. Mathematics and Physics School University of Science and Technology Beijing Beijing 100083 China. Department of Mathematics and Statistics Arizona State University Temp AZ 85287-1804 USA.

In this paper, the authors first show that if Ro ≤1, the infection free steady state is globally attractive by using approaches different from those given by min, et a1.（2008）. Then the authors prove that if Ro 〉 1, the endemic steady state is also globally attractive. Finally, based on a patient＇s clinical HBV DNA data of anti-HBV infection with drug lamivudine, the authors establish an ABVIM. The numerical simulations of the ABVIM axe good in agreement with the clinical data.

关键词： Basic infection reproduction number clinical data simulation equilibrium point global stability HBV infection.

Preparation and Properties of Doped Lanthanum Gallate Film on a Ni/SDC Porous Anode Support

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Chemical Research in Chinese Universities 2006年第5期22卷 643-646页

作者： HE Qiang HE Tian-min PEI Li ji Yuan College of Physics Jilin University Changchun 130023 P. R. China

A 65. 8-μm dense doped lanthanum gallate La0.8Sr0.2 Ga0.85 Mg0.15 O2.825（LSGM）film was prepared on a porous Ni/SDC（samarium doped ceria, Ce0.8Sm0.2O1.9 ） anode support by colloid susponsion deposition with incomplete crystallization LSGM powder as a starting material. The phase composition and micromorphology of the LSGM film were characterized by X-ray diffraction and scanning electron microscopy. The electrical properties of the LSGM film and the performances of the LSGM film solid oxide fuel cell were also analyzed. The results show that beth the dense LSGM film on the porous anode support, and the required phase composition of the LSGM film were obtained simultaneously by sintering at 1400 ℃ for 6 h. The adhesion between the LSGM film and the porous anode support is very strong. The electrical conductivities of the LSGM film on the porous anode support are 0. 113 and 0. 173 S/cm at 800 and 850℃, respectively. The maximum output power density of the LSGM film cell is 177 mW/cm^2 at 700℃.

关键词： Doped lanthanum gallate Film Electrical property Solid oxide fuel cell Anode support

Synthesis and Crystal Structure of a Three-dimensional (3D) Complex Mn(H_2O)_2(HNic)_2 (HNic=2-Hydroxynicotinic Acid)

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Chinese Journal of Structural Chemistry 2006年第5期25卷 572-576页

作者： LI Yu-Mei CHE Yun-Xia ZHENG ji-min Department of Chemistry Nankai University Tianjin 300071 China

The title complex Mn（H2O）2（HNic）2 （C22H12MnN2O8, Mr = 367.18） crystallizes in monoclinic, space group P21/c with a = 7.5735（8）, b = 12.5295（13）, c = 7.6466（8）A.β = 101.2790（10）°, Z = 2, V= 711.59（13） A^3, D, = 1.714 g/cm^3,μ（MoKa） = 0.974 mm^-1, F（000） = 374, R1 （1255 observed reflections （Ⅰ 〉 2σ（Ⅰ）） = 0.0250） and wR2 = 0.0662 （all data）. In this paper, we report the complexation of Mn（Ⅱ） by the bidentate ligand 2-hydroxynicotinic acid （HNic）. In the crystal the Mn（Ⅱ） ion exhibits a deformed octahedron structure. The title complex Mn（H2O）2（HNic）2 has a three-dimensional （3D） network structure extended by hydrogen bonds, which are formed by two typical eight-membered hydrogen-bonded rings.

关键词： complex crystal structure three-dimensional network

Influence of EDTA on Demineralization Rate of Dentine:Calcification Treatment in Root Canal Therapy

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Journal of Materials Science & Technology 2014年第7期30卷 692-698页

作者： Yang ji min He Shijie Chang Xiaodong Zhang Huazhe Yang Department of Stomatology General Hospital of Shenyang Military Area Command College of Biomedical Engineering Chongqing Medical University College of Basic Medical Science China Medical University

The aim of this study was to investigate the influence of ethylenediaminetetraacetic acid （EDTA） irrigation on demineralization rate of dentine located in the apical third of root canal walls. Teeth were divided into A and B two groups. In group A, all of the teeth was irrigated with EDTA and NaOCI （sodium hypochlorite）, followed by cutting the apical third into slices longitudinally to examine the influence of EDTA on different portions of apical third of root canal. In group B, the apical third of a tooth was firstly cut into slices longitudinally, followed by coating the root canal walls with EDTA to in-situ observe the demineralization of dentine with different time. It was found that the influence of EDTA on root-canal was gradually increased from the apical to the upper end of the apical third for group A. In addition, the demineralization rate of dentine was remarkable in the first 25 min for group B. The diffusion of EDTA into root dentine would lead to potential damage to the dentine. Furthermore, demineralization rate curve was calculated.

关键词： Ethylenediaminetetraacetic acid (EDTA) Root canal Demineralization Dentine