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Structural, Optical and Luminescence Properties of ZnO Thin Films Prepared by Sol-Gel Spin-Coating Method： Effect of Precursor Concentration

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Chinese Physics Letters 2018年第1期35卷 63-67页

作者： R.Amari A.Mahroug A.Boukhari B.Deghfel n.selmi Laboratory of Materials Physics and Its Applications Department of Physics Faculty of Sciences University of Mohamed Boudiaf M'sila 28000 Algeria Department of Physics Faculty of Sciences University of Mohamed Boudiaf M'sila 28000 Algeria nuclear Research Center of Birine Ain Oussera Box 180 Algeria

Transparent zinc oxide（ZnO） thin films are fabricated by a simple sol-gel spin-coating technique on glass substrates with different solution concentrations（0.3-1.2 M） using zinc acetate dehydrate [Zn（CH_3COO）_2·2H_2O] as precursor and isopropanol and monoethanolamine（MEA） as solvent and stabilizer, respectively. The molar ratio of zinc acetate dehydrate to MEA is 1.0. X-ray diffraction, ultraviolet-visible spectroscopy and photoluminescence spectroscopy are employed to investigate the effect of solution concentration on the structural and optical properties of the ZnO thin films. The obtained results of all thin films are discussed in detail and are compared with other experimental data.

关键词： ZnO Optical and Luminescence Properties of ZnO Thin Films Prepared by Sol-Gel Spin-Coating Method Structural

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On the Projections of the Mutual Multifractal Rényi Dimensions

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Analysis in Theory and Applications 2021年第4期37卷 572-592页

作者： Zied Douzi Bilel selmi Faculty of Sciences of Monastir Department of Mathematics5000-MonastirTunisia

In this paper,we compare the mutual multifractal Renyi dimensions to the´mutual multifractal Hausdorff and pre-packing *** also provide a relationship between the mutual multifractal Renyi dimensions of orthogonal projections´of a couple of measures(µ,ν)in R^(n).As an application,we study the mutual multifractal analysis of the projections of measures.

关键词： Mutual Hausdorff dimension mutual packing dimension mutual multifractal analysis doubling measures projection.

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原发性胆汁性肝硬化的危险因素及其共存病:一项1032例设立对照的问卷研究

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世界核心医学期刊文摘（胃肠病学分册） 2006年第5期2卷 46-47页

作者： Gershwin M.E. selmi C. Worman H.J. 孟欣颖 Division of Rheumatology Allergy and Clinical Immunology University of California at Davis School of Medicine 451 E. Health Sciences Drive Davis CA 95616 United States Dr.

Primary biliary cirrhosis (PBC) is an autoimmune disease of unknown etiology, often associated with other autoimmune conditions. Controlled studies have so far provided conflicting data on risk factors and comorbidity rates in PBC. We enrolled patients with PBC (n = 1032) from 23 tertiary referral centers for liver diseases in the United States and random-digitdialed controls (n = 1041) matched for sex, age, race, and geographical location. Patients and controls were administered a modified version of the US national Health and nutrition Examination Study (nHAnES III) questionnaire by trained personnel to evaluate associations between PBC and social, demographic, personal and family medical histories, lifestyle, and reproductive factors and the rates of comorbidity in affected individuals. Data indicate that having a first-degree relative with PBC (adjusted odds ratio AOR 10.736; 95% confidence interval 4.227-27.268), history of urinary tract infections (AOR1.511,95% CI 1.192-1.915),past smoking (AOR 1.569, 95% CI 1.292-1.905), or use of hormone replacement therapies (AOR 1.548, 95% CI 1.273-1.882)were significantly associated with increased risk of PBC. The frequent use of nail polish slightly increased the risk of having PBC. Other autoimmune diseases were found in 32% of cases and 13% of controls (P n conclusion, environmental factors, possibly including infectious agents through urinary tract infections or chemicals contained in cigarette smoke, may induce PBC in genetically susceptible individuals. Exogenous estrogens may also contribute to explain the female predominance of the disease.

关键词：原发性胆汁性肝硬化对照研究危险因素共存病问卷自身免疫性疾病人口统计学 PBC 病因不明相互冲突

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