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A route for large-scale preparation of multifunctional superhydrophobic coating with electrochemically-modified kaolin for efficient corrosion protection of magnesium alloys

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Journal of Magnesium and Alloys 2022年第11期10卷 3082-3099页

作者： Xiang Liu Tian c.Zhang Yuxin Zhang Jinsong Rao Shaojun Yuan Low-carbon Technology&chemical Reaction Engineering Lab College of Chemical EngineeringSichuan UniversityChengdu 610065China civil&Environmental Engineering Department University of Nebraska-LincolnOmahaNE 68182-0178USA State Key Laboratory of Mechanical Transmissions College of Materials Science and EngineeringChongqing UniversityChongqing 400044China

Superhydrophobic coating has been widely studied for its great applicational potential, such as for corrosion protection of magnesium alloys while it has been restrained by expensive materials, sophisticated preparation process and infirm rough structures. In this study, the electrochemical method was adopted by using a two-electrode system for rapid hydrophobic modification to obtain superhydrophobic *** mixing the modified superhydrophobic kaolin with commercial epoxy resin and polydimethylsiloxane glue, a paint can be formed and easily used on various substrates for preparation of superhydrophobic coating via spraying method. The influence factors on wettability of the modified kaolin and the mixing ratio of each component of the coating were explored. Also, the wettability, durability and anticorrosion of the prepared coating were evaluated comprehensively. The coating was able to maintain superhydrophobic after immersed in Hcl solution at pH 1, the NaOH solution at pH 14, and 3.5 wt.% Nacl solution for 16, 21, 30 days, respectively. In addition, the coating exhibited 4A grade adhesion, high hydrophobicity after abraded for 200 cycles on a 600-mesh sandpaper with 100 g weight, and 99.86% anticorrosion efficiency after soaked in 3.5 wt.% Nacl solution for 20 days, demonstrating a good robustness and anti-corrosion property. Furthermore, the coating showed good transparency, flexibility and was easy to make in a large scale by the spraying method, which is of great significance to promote the practical application of superhydrophobic coatings and the anticorrosion Mg alloys.

关键词： Superhydrophobic coating Large-scale application Magnesium alloys corrosion protection

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K-P-Burgers equation in negative ion-rich relativistic dusty plasma including the effect of kinematic viscosity

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chinese Physics B 2016年第10期25卷 215-221页

作者： A N Dev M K Deka J Sarma D Saikia N c Adhikary Department of Mathematics Siksha ‘O' Anusandhan University Department of Applied Sciences Institute of Science and Technology Gauhati University Department of Mathematics R G Baruah College Physical Sciences division Institute of Advanced Study in Science and TechnologyVigyan Path Paschim Boragaon

The stationary solution is obtained for the K–P–Burgers equation that describes the nonlinear propagations of dust ion acoustic waves in a multi-component, collisionless, un-magnetized relativistic dusty plasma consisting of electrons, positive and negative ions in the presence of charged massive dust grains. Here, the Kadomtsev–Petviashvili(K–P) equation, threedimensional(3D) Burgers equation, and K–P–Burgers equations are derived by using the reductive perturbation method including the effects of viscosity of plasma fluid, thermal energy, ion density, and ion temperature on the structure of a dust ion acoustic shock wave(diASW). The K–P equation predictes the existences of stationary small amplitude solitary wave,whereas the K–P–Burgers equation in the weakly relativistic regime describes the evolution of shock-like structures in such a multi-ion dusty plasma.

关键词： K–P–Burgers equation negative ion relativistic plasma reductive perturbation method

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Integrating fossils in a molecular-based phylogeny and testing them as calibration points for divergence time estimates in Menispermaceae

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Journal of Systematics and Evolution 2011年第1期49卷 25-49页

作者： Frdric M.B. JAcQUES Rosa Del c. ORTIZ Department of Biodiversity and Biogeography Kunming Institute of Botany Chinese Academy of Sciences State Key Laboratory of Systematic and Evolutionary Botany Institute of Botany Chinese Academy of Sciences Missouri Botanical Garden St. Louis MO 63166-0299 USA

The phylogeny of extant Menispermaceae (Ranunculales) is reconstructed based on DNA sequences of two chloroplast genes (rbcL and atpB) from 94 species belonging to 56 genera. Fossilized endocarps represent 34 genera. The positions of these are inferred using 30 morphological characters and the molecular phylogeny as a backbone constraint. Nine of the thirteen nodes that are each dated by a fossil are used as calibration points for the estimates of molecular divergence times. BEAST is used to estimate stem age (121.2 Myr) and crown age (105.4 Myr) for Menispermaceae. This method does not require an input tree topology and can also account for rate heterogeneity among lineages. The sensitivity of these estimates to fossil constraints is then evaluated by a cross-validation procedure. The estimated origin for Menispermaceae is dated to the mid-Jurassic if the customary maximum age of 125 Myr for eudicots is not implemented. All constraints when used alone failed to estimate node ages in some parts of the tree. Fossils from the Palaeocene and Eocene impose strict constraints. Likewise, the use of Prototinomiscium as a dating constraint for Menispermaceae appears to be a conservative approach.

关键词： age calibration cross-validation fossil Menispermaceae molecular scaffold phylogeny.

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IMM-H004 therapy for permanent focal ischemic cerebral injury and cardiopulmonary complications via cKLF1/ccR4-mediated inflammation pathway

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中国药理学与毒理学杂志 2018年第9期32卷 675-676页

作者： AI Qi-di cHEN chen cHU Shi-feng ZHANG Zhao LUO Yun GUAN Fei-fei ZHANG Shuai WANG Sha-sha YAN Xu cHEN Nai-hong Hunan Engineering Technology center of Standardization and Function of chinese Herbal Decoction Pieces & colege of Pharmacy Hunan University of Chinese Medicine State Key Laboratory of Bioactive Substances and Functions of Natural Medicines Institute of Materia Medica & Neuroscience CenterChinese Academy of Medical Sciences and Peking Union Medical College Institute of Medicinal Plant Development Peking Union Medical College and Chinese Academy of Medical Sciences Key Laboratory of Human disease comparative Medicine NHFPCInstitute of Laboratory Animal SciencePeking Union Medicine College and Chinese Academy of Medical Sciences School of Basic Medicine Shanxi University of Traditional Chinese Medicine

OBJEcTIVE To investigate the effects of IMM-H004 on permanent focal cerebral ischemia injury and associated cardiopulmonary complications,further elucidating the molecular *** The effects of IMM-H004 were investigated in wild-type(WT) and cKLF1-/-*** effects of IMM-H004 on ischemic stroke injury and its cardiopulmonary complications were determined using 2,3,5-triphenyltetrazolium chloride(TTc) staining,behavior tests,magnetic resonance imaging(MRI)scans,enzyme-linked immunosorbent assay(ELISA),Nissl staining,and histo-pathological *** molecular experiments including immunohistological staining,immunofluorescence staining,quantitative RT-PcR,Western blotting,and co-immunoprecipitation assays were used to elucidate the underlying *** IMM-H004 treatment provided significant protection against ischemic stroke-induced brain injury and associated cardiopulmonary complications,through cKLF1-depedent-anti-inflammation pathway in ***-H004 downregulated the amount of cKLF1 and disturbed the combination between cKLF1 and c-c chemokine receptor type 4,suppressing the inflammatory response and protecting the damaged organs in ischemic *** This preclinical study established efficacy of IMM-H004 as a potential therapeutic medicine for ischemic stroke and associated cardiopulmonary *** protective effects of IMM-H004 may due to its specific mechanism through *** results support further efforts to develop IMM-H004 for human clinical trials in acute cerebral ischemia,especially for patients who are not suitable for reperfusion therapy.

关键词： IMM-H004 permanent focal cere-bral ischemia injury complication inflammation cKLF1/ccR4

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Thiopurine-methyltransferase variants in inflammatory bowel disease:Prevalence and toxicity in Brazilian patients

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World Journal of Gastroenterology 2014年第12期20卷 3327-3334页

作者： Ana Teresa P carvalho Barbara c Esberard Renata S B Fróes Davy c M Rapozo Ana B Grinman Tatiana A Simo Juliana c V c Santos Antonio José V carneiro Luis Felipe Ribeiro-Pinto Heitor S P de Souza disciplina de Gastroenterologia e Endoscopia digestiva Universidade do Estado do Rio de Janeiro Programa de carcinogênese Molecular Instituto Nacional de Cancer Laboratório de Toxicologia e Biologia Molecular Universidade do Estado do Rio de Janeiro Servi?o de Gastroenterologia Departamento de Clínica MédicaUniversidade Federal do Rio de Janeiro

AIM: To analyze the prevalence of thiopurine-methyltransferase (TPMT) genotypes and their association with drug toxicity in inflammatory bowel disease (IBD) patients from southeastern Brazil.

关键词： Inflammatory bowel disease Thiopurine-methyl-transferase Azathioprine Drug toxicity Pancreatitis

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A Theory of the Risk for Empirical cVaR with Application to Portfolio Selection

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Journal of Systems Science & complexity 2021年第5期34卷 1879-1894页

作者： ARIcI Giorgio cAMPI marco c. cARE Algo DALAI marco RAMPONI Federico A. Department of Information Engineering University of Bresciavia Branze 3825123 BresciaItaly.

When decisions are based on empirical observations,a trade-off arises between flexibility of the decision and ability to generalize to new *** this paper,we focus on decisions that are obtained by the empirical minimization of the conditional Value-at-Risk(cVa R)and argue that in cVa R the trade-off between flexibility and generalization can be understood on the ground of theoretical results under very general assumptions on the system that generates the *** results have implications on topics related to order and structure selection in various applications where the cVa R risk-measure is used.A study on a portfolio optimization problem with real data demonstrates our results.

关键词： distribution-free results empirical cVa R generalization order selection risk scenario approach

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Erythrocyte Senescent markers by Flow cytometry

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Open Journal of Blood diseases 2019年第3期9卷 47-59页

作者： maría Alejandra Ensinck Melina Eliana Luján Brajovich Silvia Estela García Borrás carlos Miguel cotorruelo claudia Silvia Biondi Department of clinical Biochemestry Faculty of Biochemical and Pharmaceutical Sciences National University of Rosario Rosario Argentina

Background: Mature red blood cells lack protein synthesis and are unable to restore inactivated enzymes, damaged cytoskeleton and membrane proteins. An oxidation breakdown of band 3 is probably part of the mechanism leading to the generation of a senescent cell antigen. This specific signal serves for the clearance of RBcs by inducing the binding of autologous IgG and c3, leading to phagocytosis. In addition, phosphatidilserin molecules appear in the outer membrane and the cD47 expression diminishes. Methods: Erythrocytes of different ages from whole blood were studied by flow cytometry analysing light scatter proprieties, binding of autologous IgG, c3 complement deposits, externalization of phosphatidylserine and cD47 expression. Dot-plot analysis based on forward scatter versus side scatter parameters showed two RBcs populations of different sizes and density. RBcs were further incubated with Alexa 488 IgG, APc-anti-c3, PE-annexin-V and PE-cD47. The comparison of the values obtained for the different variables studied in SeRBc and YRBc populations was carried out by the Student t-test for matched samples or by the Wilcoxon test (after verification of the normality assumption). Results: The percentage of IgG and c3 positive cells was significantly higher in senescent red blood cells population. The fraction of annexin-V positive RBcs was also larger in SeRBcs while the cD47 expression was lower in this population. conclusions: These results indicate that flow cytometry allow differenciation of erythrocytes populations of different ages, turning this tool into an useful alternative option to study erythrocyte aging process. These findings will contribute to a better understanding of the process and mechanisms involved in erythrocyte senescence process.

关键词： Erythrocyte Senescence Flow cytometry

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Fabrication and Sensing Performance of Smart composite Structures Using Optical Fibre Sensors

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材料科学与工程学报 2000年第Z1期20卷 483-488页

作者： c Y Wei Damage Tolerance Group School of Industrial and Manufacturing Science Optical Sensors Group Centre for Photonics and Optical Eng. School of Mech.. Eng.cranfield University Cranfield Bedford MK43 OAL UK

This paper determines the performance of Fibre Bragg Grating (FBG) sensors for strain sensing applications in carbon fibre composite materials. carbon fibre laminates in either cross-plied or quasiisotropic stacking sequences were fabricated using T300/Hexcel 914 prepregs. The FBG optical sensors were either surface attached, or embedded within laminates. The sensor orientation was aligned either parallel or transverse to the adjacent carbon fibre layers. The composite structures with integrated FBG sensors were subjected to static tensile loading. A scanning fibre Fabry-Perot filter was used to monitor the reflected Bragg wavelengths. The optical sensor embedded between two 90° carbon fibre plies shows a high sensitivity to multi-site cracking formed in the transverse plies. The embedding in 90° plies seems to change the local stress distributions and to become a source of crack initiation. Efficient stress transfer from the host materials to the sensors is dependent upon incorporation methods, the thickness of the adhesive layers, and the location of the sensors.

关键词： Fibre Bragg grating sensor Strain sensor Smart materials

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基于MVc架构的LIBS软件设计与实现

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吉林大学学报（工学版） 2016年第1期46卷 242-245页

作者：陈鹏飞田地杨光吉林大学仪器科学与电气工程学院长春130061

为了方便使用实验室组装的激光诱导击穿光谱(LIBS)仪器,设计并实现了一套LIBS软件。该软件包括控制软件和光谱分析软件两部分,具有系统自检、数据采集、光谱预处理和元素识别等功能。采用MVc(Model-View-controller)对软件的系统架构进... 详细信息

为了方便使用实验室组装的激光诱导击穿光谱(LIBS)仪器,设计并实现了一套LIBS软件。该软件包括控制软件和光谱分析软件两部分,具有系统自检、数据采集、光谱预处理和元素识别等功能。采用MVc(Model-View-controller)对软件的系统架构进行设计,描述了各Model的设计流程,并用c#语言完成了软件的开发。实验表明该软件可方便地操作仪器实现光谱采集和定性分析。

关键词：计算机软件激光诱导击穿光谱架构设计模型-视图-控制器(MVc) 面向对象

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SUMmarY TABLES OF PARTIcLE PROPERTIES Extracted from the Particle Listings of the Review of Particle Physics

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chinese Physics c 2016年第10期40卷 29-116页

作者： c. Patrignani (Particle Data Group) Chin. Phys. C 40 100001 (2016)

Particle Data Group c. Patrignani, K. Agashe, G. Aielli, c. Amsler, M. Antonelli, D.M. Asner H. Baer, Sw. Banerjee, R.M. Barnett, T. Basaglia, c.W. Bauer, J.J. Beatty, V.I. Belousov, J. Beringer, S. Bethke, H. Bichsel... 详细信息

关键词： JPc PARTIcLE PHYSIcS SUMmarY TABLES AcP

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